阅读说明：本技术 露天矿智能化连续开采装备 (Intelligent continuous mining equipment for strip mine ) 是由 赵立峰 万理想 于 2019-06-18 设计创作，主要内容包括：本发明公开一种露天矿智能化连续开采装备,包括机架部和行走部,所述机架部包括主架体、后架体和连接主架体、后架体的连接装置,所述行走部安装在机架部的下部。其中,连接装置包括：用于一次性将所述主架体与后架体的上部、主架体和所述液压部的一对后支撑油缸分别转动连接在一起的第一连接结构；用于一次性将主架体与后架体的下部、主架体与支撑器分别转动连接在一起的第二连接结构；用于将支撑器与后支撑油缸连接在一起以使支撑器随后支撑油缸的伸缩相应支撑或收回的第三连接结构。本发明实施例的露天矿智能化连续开采装备,通过连接装置将主架体、后架体、支撑器一次性连接在一起,连接快捷、方便,优化机架部的结构。(The invention discloses intelligent continuous mining equipment for strip mines, which comprises a frame part and a walking part, wherein the frame part comprises a main frame body, a rear frame body and a connecting device for connecting the main frame body and the rear frame body, and the walking part is arranged at the lower part of the frame part. Wherein, connecting device includes: the first connecting structure is used for respectively and rotatably connecting the main frame body with the upper part of the rear frame body, the main frame body and the pair of rear support oil cylinders of the hydraulic part at one time; the second connecting structure is used for respectively and rotatably connecting the main frame body and the lower part of the rear frame body and the main frame body and the support together at one time; and a third connecting structure for connecting the supporter and the rear support cylinder together so that the supporter can be correspondingly supported or retracted by the telescopic of the support cylinder. According to the intelligent continuous mining equipment for the strip mine, the main frame body, the rear frame body and the support are connected together at one time through the connecting device, so that the connection is fast and convenient, and the structure of the frame body is optimized.)

1. The utility model provides an intelligent continuous mining of strip mine is equipped, includes rack portion and walking portion, rack portion includes the body frame body, back support body and connects the body frame body, the connecting device of back support body, the walking portion is installed in the lower part of rack portion.

2. The strip mine intelligent continuous mining apparatus of claim 1, the connection device comprising:

the first connecting structure is used for respectively and rotatably connecting the main frame body with the upper part of the rear frame body, the main frame body and the pair of rear support oil cylinders of the hydraulic part at one time;

the second connecting structure is used for respectively and rotatably connecting the main frame body and the lower part of the rear frame body and the main frame body and the support together at one time;

and a third connecting structure for connecting the supporter and the rear support cylinder together so that the supporter can be correspondingly supported or retracted by the telescopic of the support cylinder.

3. The intelligent continuous mining apparatus of strip mine according to claim 2, wherein:

the first connecting structure is provided with a front and rear support connecting pin shaft which penetrates through the upper part of the main support body, the upper part of the rear support body and the rear support oil cylinder body;

the second connecting structure is provided with a support connecting pin shaft which penetrates through the lower part of the main frame body, the lower part of the rear frame body and the support;

the third connecting structure is provided with a rear supporting oil cylinder connecting pin shaft which penetrates through the support and the rear supporting oil cylinder;

the support connecting pin shaft is parallel to the front and rear frame connecting pin shaft and is located right below the front and rear frame connecting pin shaft, and the axis of the rear support oil cylinder connecting pin shaft is parallel to the axis of the front and rear frame connecting pin shaft.

4. The intelligent continuous mining apparatus of strip mine according to claim 3, wherein:

the main frame body is provided with two pairs of first connecting lug plates with upper through holes and lower through holes, and a cylinder body of a rear supporting oil cylinder is arranged between the first connecting lug plates;

a pair of second connecting lug plates with upper through holes and lower through holes are arranged on the main frame body and positioned on the outer sides of the two pairs of first connecting lug plates;

the support is provided with a pair of support connecting lug plates with pin holes.

5. The intelligent continuous mining apparatus of claim 4, wherein the first connection structure further comprises:

a pair of first reinforcing ear plates which are arranged on the main frame body and are respectively positioned at the outer sides of the pair of second connecting ear plates, and upper through holes are arranged at the upper parts of the first reinforcing ear plates;

a pair of second reinforcing lug plates which are arranged on the main frame body and are respectively positioned at the outer sides of the pair of first reinforcing lug plates, and upper through holes are arranged at the upper parts of the second reinforcing lug plates;

a pair of third reinforcing ear plates arranged on the rear frame body, wherein the upper parts of the third reinforcing ear plates are provided with upper through holes;

and the front and rear frame connecting pin shaft penetrates through an upper through hole on the upper parts of the second reinforcing lug plate, the third reinforcing lug plate, the first reinforcing lug plate, the second connecting lug plate and the first connecting lug plate, and the main frame body is rotatably connected with the upper part of the rear frame body, the main frame body and the cylinder body of the rear support oil cylinder respectively.

6. The intelligent continuous mining apparatus of claim 5, wherein the second connection structure further comprises:

the lower through holes are respectively arranged at the lower part of the second reinforcing lug plate, the lower part of the third reinforcing lug plate, the lower part of the first reinforcing lug plate and the lower part of the second connecting lug plate;

the lower through holes at the lower parts of the second reinforcing lug plate, the third reinforcing lug plate, the first reinforcing lug plate and the second connecting lug plate and the pin holes on the supporting device connecting lug plate are penetrated by the supporting device connecting pin shaft, and the main frame body is rotationally connected with the lower part of the rear frame body and the main frame body is rotationally connected with the supporting device respectively.

7. The intelligent continuous mining apparatus of claim 6, wherein the third connection structure further comprises:

the two pairs of oil cylinder connecting lug plates are arranged on the support and provided with pin holes, and a piston rod for supporting an oil cylinder is arranged between the pair of oil cylinder connecting lug plates;

the rear support oil cylinder connecting pin shaft penetrates through the piston rods of the pair of rear support oil cylinders and the two pairs of oil cylinder connecting lug plates, and the piston rods of the pair of rear support oil cylinders and the two pairs of oil cylinder connecting lug plates are respectively and rotatably connected together.

8. The intelligent continuous mining apparatus of any one of claims 1 to 7, wherein the walking portion comprises a pair of crawler units on either side of the frame portion for driving the apparatus to walk, the crawler units comprising:

the walking frame body is connected with one side of the bottom of the main frame body of the frame part;

the driving device is arranged on the walking frame body and positioned at one end of the walking frame body and used for providing driving force, and is provided with a driving motor, a driving chain wheel and a cantilever type speed reducer structure;

the driven device is arranged on the walking frame body and positioned at the other end of the walking frame body, and is provided with a tensioning wheel set and a tensioning adjusting mechanism for adjusting the tensioning force of the tensioning wheel set;

a pair of tension wheels surrounding the tension wheel set and a crawler belt driving a chain wheel;

one part of the cantilever type speed reducer structure, which is internally provided with the driving motor, is arranged in the walking frame body, and the other part of the cantilever type speed reducer structure is suspended outside the walking frame body.

9. The intelligent continuous mining apparatus of claim 8, wherein the cantilevered decelerator structure comprises:

a cantilever type speed reducer box body;

the speed reduction transmission device is integrated in the cantilever type speed reducer box body;

wherein, cantilever type reduction gear box includes: one part of the straight-tooth transmission box is arranged in the walking frame body, and the other part of the straight-tooth transmission box extends out of the walking frame body; the planetary transmission case is connected with the other part of the straight tooth transmission case and extends out of the walking frame body;

the driving chain wheel is connected with a power output part of the planetary transmission case extending out of the walking frame body.

10. The intelligent continuous mining apparatus of strip mine according to claim 8 or 9, wherein the crawler further comprises:

the oil temperature sensor is arranged on the cantilever type speed reducer structure and used for detecting the temperature of hydraulic oil of the speed reducer structure;

the encoder is arranged on the cantilever type speed reducer structure and used for detecting the walking speed of the crawler type excavating equipment;

the stator temperature measuring sensor is arranged on the cantilever type speed reducer structure and used for detecting the temperature of the driving motor of the cantilever type speed reducer structure;

and the control system is respectively and electrically connected with the oil temperature sensor, the encoder and the stator temperature measuring sensor.

Technical Field

The invention relates to the technical field of mining mechanical equipment, in particular to intelligent continuous mining equipment for strip mines.

Background

At present, in the design and application of mining excavation equipment, a main frame body is connected with a rear frame body through flanges, so that a flange face and two pin holes need to be arranged in a large space in the design, the machining precision requirement of the two flange faces is strict, the machining manufacturability is poor, when the theoretical size of the distance between two outer side flanges of the main frame body is larger, the manufacturability of accurate matching in machining is poor, and the installation precision of a product is greatly reduced.

In addition, the walking power of the existing mining equipment is generally provided by a hydraulic motor or an excitation motor, the walking speed reducer has the advantages of dispersed structural form, poor interchangeability, low modularization and low intelligence degree. The hydraulic motor transmits power to the hydraulic transmission system, so that the energy loss is large, the transmission efficiency is low, the system is easy to leak, the system is difficult to check when in fault, the oil temperature change is sensitive, and the equipment is not suitable for working under the conditions of large temperature difference change between day and night and outdoor work. When the excitation motor drives the walking speed reducer, the efficiency is low, and because the rotor winding has induced current, rotor resistance and magnetic hysteresis loss exist, so that the temperature is raised, the power factor is low, the reliability is low, and the size of the speed reducer is large. Moreover, the traction mode is only suitable for mining ore with lower underground hardness in small and medium-sized coal mine enterprises, and is not suitable for large and extra-large open pit coal mine enterprises.

Disclosure of Invention

The invention aims to provide intelligent continuous mining equipment for strip mines.

In order to achieve the above object, the intelligent continuous mining equipment for a strip mine according to an embodiment of the present invention includes a frame portion including a main frame body, a rear frame body, and a connecting device connecting the main frame body and the rear frame body, and a traveling portion installed at a lower portion of the frame portion.

Wherein the connecting device comprises: the first connecting structure is used for respectively and rotatably connecting the main frame body with the upper part of the rear frame body, the main frame body and the pair of rear support oil cylinders of the hydraulic part at one time; the second connecting structure is used for respectively and rotatably connecting the main frame body and the lower part of the rear frame body and the main frame body and the support together at one time; and a third connecting structure for connecting the supporter and the rear support cylinder together so that the supporter can be correspondingly supported or retracted by the telescopic of the support cylinder.

The first connecting structure is provided with a front and rear support connecting pin shaft which penetrates through the upper part of the main support body, the upper part of the rear support body and the rear support oil cylinder body; the second connecting structure is provided with a support connecting pin shaft which penetrates through the lower part of the main frame body, the lower part of the rear frame body and the support; the third connecting structure is provided with a rear supporting oil cylinder connecting pin shaft which penetrates through the support and the rear supporting oil cylinder; the support connecting pin shaft is parallel to the front and rear frame connecting pin shaft and is located right below the front and rear frame connecting pin shaft, and the axis of the rear support oil cylinder connecting pin shaft is parallel to the axis of the front and rear frame connecting pin shaft.

The main frame body is provided with two pairs of first connecting lug plates with upper through holes and lower through holes, and a cylinder body of a rear support oil cylinder is arranged between the first connecting lug plates; a pair of second connecting lug plates with upper through holes and lower through holes are arranged on the main frame body and positioned on the outer sides of the two pairs of first connecting lug plates; the support is provided with a pair of support connecting lug plates with pin holes.

Further, the first connecting structure further includes: a pair of first reinforcing ear plates which are arranged on the main frame body and are respectively positioned at the outer sides of the pair of second connecting ear plates, and upper through holes are arranged at the upper parts of the first reinforcing ear plates; a pair of second reinforcing lug plates which are arranged on the main frame body and are respectively positioned at the outer sides of the pair of first reinforcing lug plates, and upper through holes are arranged at the upper parts of the second reinforcing lug plates; a pair of third reinforcing ear plates arranged on the rear frame body, wherein the upper parts of the third reinforcing ear plates are provided with upper through holes; and the front and rear frame connecting pin shaft penetrates through an upper through hole on the upper parts of the second reinforcing lug plate, the third reinforcing lug plate, the first reinforcing lug plate, the second connecting lug plate and the first connecting lug plate, and the main frame body is rotatably connected with the upper part of the rear frame body, the main frame body and the cylinder body of the rear support oil cylinder respectively.

Further, the second connecting structure further includes: the lower through holes are respectively arranged at the lower part of the second reinforcing lug plate, the lower part of the third reinforcing lug plate, the lower part of the first reinforcing lug plate and the lower part of the second connecting lug plate; the lower through holes at the lower parts of the second reinforcing lug plate, the third reinforcing lug plate, the first reinforcing lug plate and the second connecting lug plate and the pin holes on the supporting device connecting lug plate are penetrated by the supporting device connecting pin shaft, and the main frame body is rotationally connected with the lower part of the rear frame body and the main frame body is rotationally connected with the supporting device respectively.

Further, the third connecting structure further includes: the two pairs of oil cylinder connecting lug plates are arranged on the support and provided with pin holes, and a piston rod for supporting an oil cylinder is arranged between the pair of oil cylinder connecting lug plates; the rear support oil cylinder connecting pin shaft penetrates through the piston rods of the pair of rear support oil cylinders and the two pairs of oil cylinder connecting lug plates, and the piston rods of the pair of rear support oil cylinders and the two pairs of oil cylinder connecting lug plates are respectively and rotatably connected together.

Wherein, the running part includes a pair of crawler unit that is located frame portion both sides is used for the drive to equip the walking, crawler unit includes: the walking frame body is connected with one side of the bottom of the main frame body of the frame part; the driving device is arranged on the walking frame body and positioned at one end of the walking frame body and used for providing driving force, and is provided with a driving motor, a driving chain wheel and a cantilever type speed reducer structure; the driven device is arranged on the walking frame body and positioned at the other end of the walking frame body, and is provided with a tensioning wheel set and a tensioning adjusting mechanism for adjusting the tensioning force of the tensioning wheel set; a pair of tension wheels surrounding the tension wheel set and a crawler belt driving a chain wheel; one part of the cantilever type speed reducer structure, which is internally provided with the driving motor, is arranged in the walking frame body, and the other part of the cantilever type speed reducer structure is suspended outside the walking frame body.

Preferably, the cantilever type decelerator structure includes: a cantilever type speed reducer box body; the speed reduction transmission device is integrated in the cantilever type speed reducer box body; wherein, cantilever type reduction gear box includes: one part of the straight-tooth transmission box is arranged in the walking frame body, and the other part of the straight-tooth transmission box extends out of the walking frame body; the planetary transmission case is connected with the other part of the straight tooth transmission case and extends out of the walking frame body; the driving chain wheel is connected with a power output part of the planetary transmission case extending out of the walking frame body.

Further, the crawler belt device further includes: the oil temperature sensor is arranged on the cantilever type speed reducer structure and used for detecting the temperature of hydraulic oil of the speed reducer structure; the encoder is arranged on the cantilever type speed reducer structure and used for detecting the walking speed of the crawler type excavating equipment; the stator temperature measuring sensor is arranged on the cantilever type speed reducer structure and used for detecting the temperature of the driving motor of the cantilever type speed reducer structure; and the control system is respectively and electrically connected with the oil temperature sensor, the encoder and the stator temperature measuring sensor.

Compared with the prior art, the intelligent continuous mining equipment for the strip mine provided by the embodiment of the invention has the following advantages:

1. according to the intelligent continuous mining equipment for the strip mine, the main frame body, the rear frame body and the support are connected together at one time through the connecting device, so that the connection is fast and convenient, and the structure of the frame body is optimized.

2. The connecting device provided by the embodiment of the invention can be used for connecting the main frame body with the rear frame body, the main frame body with the supporter and the main frame body with the rear support oil cylinder through the additionally arranged reinforcing lug plates, the front and rear frame connecting pin shafts, the supporter connecting pin shaft and the like, and the structure that flanges are respectively arranged on the main frame body and the rear frame body and a positioning cylindrical pin and a threaded hole for fastening are arranged on the flange surface in the prior art is eliminated, so that the connecting structure between the front and rear frames is greatly simplified, the equipment is convenient to maintain and disassemble, meanwhile, the connecting strength is improved, the processing manufacturability of the main frame body is ensured, the structural space is optimized, and the connecting reliability is ensured.

3. Compared with the walking part of the traditional excavating equipment, the walking part of the embodiment has the advantages that the driving device directly drives the walking speed reducer to output power by using the driving motor, and compared with the traditional hydraulic driving, the walking part has the advantages of low driving rotating speed, high starting torque and large traction force, and is suitable for large-scale open pit coal mine excavating operation.

4. The invention adopts the cantilever type reducer structure, so that the power output part for connecting the driving chain wheel is suspended outside the walking frame body, and when the speed reducing mechanism and the driving chain wheel suspended outside the walking frame body are maintained, the parts can be conveniently installed or disassembled without disassembling the whole reducer box body, thereby greatly reducing the labor intensity of workers and improving the labor productivity.

5. According to the invention, the oil temperature sensor, the encoder and the stator temperature measuring sensor are arranged on the cantilever type speed reducer structure, so that the functions of dynamic monitoring of the running data of the speed reducer system, remote screen data display and remote human intervention can be realized through the control system, and the walking intelligentization and visualization requirements of the crawler-type mining equipment are met.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a perspective view of an intelligent continuous mining apparatus for a strip mine according to an embodiment of the present invention;

FIG. 2a is a perspective view of a first perspective of the frame portion of the present invention;

FIG. 2b is a partial exploded view of the frame portion of the present invention;

FIG. 3 is a second perspective view of the frame portion of the present invention;

FIG. 4 is a third perspective view of the frame portion of the present invention;

FIG. 5 is a cross-sectional view of the frame portion connecting pin arrangement of the present invention;

FIG. 6a is a front view of the walking part of the present invention;

FIG. 6b is a cross-sectional view of a top view of the walking part of the present invention;

FIG. 7 is a front view of the cantilevered retarder configuration of the present invention;

FIG. 8 is a cross-sectional view taken along line K of FIG. 7;

FIG. 9a is a cross-sectional view of a top view of the cantilevered retarder structure (with drive sprocket);

FIG. 9b is a cross-sectional view of a top view of the cantilevered retarder structure (without the drive sprocket);

FIG. 10 is a cross-sectional view of a top view of the spur gear box of the present invention;

FIG. 11 is a cross-sectional view of a top view of the planetary transmission of the present invention;

FIG. 12 is a perspective view of the walking frame body of the present invention;

FIG. 13 is a front view of the walking frame body of the present invention;

FIG. 14 is a view from direction F-F of the undercarriage body shown in FIG. 13;

FIG. 15 is a perspective view of a square coupling plate of the present invention;

FIG. 16 is a perspective view of the drive sprocket of the present invention;

FIG. 17 is a block diagram of the control system of the present invention;

FIG. 18 is a partially enlarged view of the traveling part of the present invention;

fig. 19 is a partially enlarged schematic view of the tension pulley set of the present invention.

Detailed Description

As shown in fig. 1, which is a schematic view of an intelligent continuous mining equipment for a strip mine according to an embodiment of the present invention, as can be seen from fig. 1, the intelligent continuous mining equipment for a strip mine according to an embodiment of the present invention includes a frame portion 4 and a traveling portion 5, the frame portion 4 includes a main frame body 401, a rear frame body 405, and a connecting device for connecting the main frame body 401 and the rear frame body 405, and the traveling portion 5 is mounted on a lower portion of the frame portion 4.

Specifically, the intelligent continuous mining equipment for the strip mine comprises a frame part 4 which is used as a basic supporting part of the whole equipment and is used for connecting other parts into a whole, and a walking part 5 which is used for driving the equipment to walk is arranged at the lower part of the frame part 4. In addition, the equipment of the embodiment of the invention also comprises a cutting part 1, a loading part 2, a transportation part 3, a dust removal system 6, a crushing part 7, a hydraulic system 8, an electric control system 9, a remote monitoring part 10, a circulating cooling system 11, a lubricating system 12 and the like (shown in figure 1).

When the strip mine needs to be mined, the equipment is driven to walk to a required position through the walking part 5, materials are cut through the up-and-down swinging of the cutting part 1, the materials cut by the cutting part 1 are collected through the loading part 2, the materials loaded by the loading part 2 are transported to the rear end of the equipment through the transporting part 3, meanwhile, the large materials loaded by the transporting part 3 are crushed through the crushing part 7 to meet the requirement of the size of the transported materials, dust generated in the cutting process of the cutting part 1 is absorbed and filtered through the dust removal system 6, the action control of all hydraulic actuating elements of the whole equipment is realized through the hydraulic part 8, the action control of all electrical elements of the whole equipment is realized through the electrical part 9, the remote monitoring management of the relevant actions of the whole equipment is realized through the remote monitoring part 10, and the motors, the speed reducers and the hydraulic loops are cooled through the circulating cooling system 11, lubrication of the various pins is achieved by a lubrication system 12.

The connecting device of the embodiment of the invention comprises: the first connecting structure is used for respectively and rotatably connecting the main frame body with the upper part of the rear frame body and the pair of rear supporting oil cylinders of the main frame body and the hydraulic part at one time; the second connecting structure is used for respectively and rotatably connecting the main frame body and the lower part of the rear frame body and the main frame body and the support together at one time; and a third connecting structure for connecting the supporter and the rear support cylinder together so that the supporter can be correspondingly supported or retracted by the telescopic of the support cylinder.

Wherein, first connection structure includes: a front and rear support connecting pin shaft penetrates through the upper part of the main support body, the upper part of the rear support body and the rear support oil cylinder body; a pair of first reinforcing ear plates which are arranged on the main frame body and are respectively positioned at the outer sides of the pair of second connecting ear plates, and the upper parts of the first reinforcing ear plates are provided with upper through holes; a pair of second reinforcing ear plates which are arranged on the main frame body and are respectively positioned at the outer sides of the pair of first reinforcing ear plates, and upper through holes are arranged at the upper parts of the second reinforcing ear plates; a pair of third reinforcing ear plates arranged on the rear frame body, wherein the upper parts of the third reinforcing ear plates are provided with upper through holes; the front and rear frame connecting pin shaft penetrates through the upper through holes in the upper portions of the second reinforcing lug plate, the third reinforcing lug plate, the first reinforcing lug plate, the second connecting lug plate and the first connecting lug plate, and the main frame body is rotatably connected with the upper portion of the rear frame body, the main frame body and the cylinder body of the rear support oil cylinder respectively.

The second connecting structure includes: a support connecting pin shaft penetrates through the lower part of the main frame body, the lower part of the rear frame body and the support; the lower through holes are respectively arranged at the lower part of the second reinforcing lug plate, the lower part of the third reinforcing lug plate, the lower part of the first reinforcing lug plate and the lower part of the second connecting lug plate; the lower through holes at the lower parts of the second reinforcing lug plate, the third reinforcing lug plate, the first reinforcing lug plate and the second connecting lug plate and the pin holes on the supporting device connecting lug plate are penetrated by the supporting device connecting pin shaft, and the main frame body is respectively and rotatably connected with the lower part of the rear frame body and the main frame body and the supporting device.

The third connecting structure includes: a rear support oil cylinder connecting pin shaft penetrating through the support and the rear support oil cylinder; two pairs of oil cylinder connecting lug plates with pin holes are arranged on the support, and a piston rod for supporting the oil cylinder is arranged between the oil cylinder connecting lug plates; and the rear support oil cylinder connecting pin shaft penetrates through the piston rods of the pair of rear support oil cylinders and the two pairs of oil cylinder connecting lug plates, and the piston rods of the pair of rear support oil cylinders and the two pairs of oil cylinder connecting lug plates are respectively and rotatably connected together.

The main frame body is provided with two pairs of first connecting lug plates with upper through holes and lower through holes, and a cylinder body of a rear support oil cylinder is arranged between the first connecting lug plates; a pair of second connecting lug plates with upper through holes and lower through holes are arranged on the main frame body and positioned on the outer sides of the two pairs of first connecting lug plates; the support is provided with a pair of support connecting lug plates with pin holes. The support connecting pin shaft is parallel to and located under the front and rear frame connecting pin shaft, and the axis of the rear support oil cylinder connecting pin shaft is parallel to the axis of the front and rear frame connecting pin shaft.

Specifically, as shown in fig. 2a to 4, in the frame portion 4 of the present embodiment, in addition to the two pairs of first connecting lug plates 4011 and the pair of second connecting lug plates 4012 located outside the two pairs of first connecting lug plates 4011 provided on the main frame body 401, a pair of first reinforcing lug plates 4013 and a pair of second reinforcing lug plates 4014 are further provided on the main frame body 401 in parallel to each other, and the first and second reinforcing lug plates extend along the longitudinal direction of the main frame body. The pair of first reinforcing lug plates 4013 are located outside the pair of second connecting lug plates 4012, respectively, and the pair of second reinforcing lug plates 4014 are located outside the pair of first reinforcing lug plates 4013, respectively. Further, a pair of third reinforcing ear plates 4051 is provided on the rear frame body 405.

In this embodiment, the second reinforcing lug plate 4014, the third reinforcing lug plate 4051, the first reinforcing lug plate 4013, the second connecting lug plate 4012 and the upper portion of the first connecting lug plate 4011 are respectively connected together by the front and rear frame connecting pin shaft 403 extending in the width direction of the main frame body 401, so that the main frame body 401 and the upper portion of the rear frame body 405, the main frame body 401 and the cylinder body of the rear support cylinder 806 can be respectively rotatably connected together by only mounting the front and rear frame connecting pin shaft 403 once. Correspondingly, the upper portions of the second reinforcing lug plate 4014, the third reinforcing lug plate 4051, the first reinforcing lug plate 4013, the second connecting lug plate 4012 and the first connecting lug plate 4011 are respectively provided with an upper through hole corresponding to the position through which the front and rear frame connecting pin shaft 403 passes, and the size of the upper through hole is matched with the size of a pin hole formed in the main frame body 401, the rear frame body 405 and the cylinder body of the rear support oil cylinder 806.

In addition, in this embodiment, the lower portions of the second reinforcing ear plate 4014, the third reinforcing ear plate 4051, the first reinforcing ear plate 4013 and the second connecting ear plate 4012 are connected to the support device connecting ear plate 4041 by the support device connecting pin 408, so that the main frame body 401 and the lower portion of the rear frame body 405, and the main frame body 401 and the support device connecting ear plate 4041 on the support device 404 can be respectively and rotatably connected together by assembling the support device connecting pin 408 at one time. Correspondingly, lower through holes corresponding to the positions for the support connecting pin shaft 408 to pass through are respectively formed in the lower portions of the second reinforcing ear plate 4014, the third reinforcing ear plate 4051, the first reinforcing ear plate 4013 and the second connecting ear plate 4012, and the size of each lower through hole is matched with the size of a pin hole formed in the main frame body 401, the rear frame body 405 and the support connecting ear plate 4041. The lower through holes formed in the respective members are positioned right above the upper through holes, so that after the strut connecting pin 408 and the front and rear frame connecting pins 403 are assembled, the strut connecting pin 408 is positioned right below the front and rear frame connecting pins 403 in parallel with the front and rear frame connecting pins 403.

Correspondingly, a third reinforcing ear plate upper through hole 4052 and a third reinforcing ear plate lower through hole 4053 corresponding to the upper through hole and the lower through hole are respectively formed at the upper portion and the lower portion of the pair of third reinforcing ear plates 4051 of the rear frame body 405, and the third reinforcing ear plate upper through hole 4052 is located right above the third reinforcing ear plate lower through hole 4053. Since the third reinforcing ear plate 4051 of the rear frame body 405 is interposed between the first reinforcing ear plate and the second reinforcing ear plate of the main frame body 401 during assembly, the thickness (in the width direction of the main frame body) of the third reinforcing ear plate 4051 should be smaller than or equal to the distance between the first reinforcing ear plate and the second reinforcing ear plate during design.

In addition, the connecting device of the present embodiment further includes: two pairs of cylinder connecting ear plates 4040 disposed on the support 404 and located at one end thereof, and a piston rod for mounting a rear support cylinder 806 between the pair of cylinder connecting ear plates 4040; and a rear support cylinder connecting pin 409 which is used for respectively and rotatably connecting the piston rods of the pair of rear support cylinders 806 with the two pairs of cylinder connecting lug plates. The axis direction of the rear support cylinder connecting pin 409 is parallel to the axis of the front and rear frame connecting pin 403 and the support connecting pin 408. And a supporter engaging ear plate 4041 for coupling the supporter 404 to the main frame body 401 is provided at the other end of the supporter 404.

During assembly, as shown in fig. 5, an upper through hole and a lower through hole are respectively designed on the upper portion and the lower portion of the first connecting ear plate, the second connecting ear plate, the first reinforcing ear plate and the second reinforcing ear plate on the main frame body 401, and the upper portion and the lower portion of the third reinforcing ear plate on the rear frame body 405, the front frame connecting pin shaft 403 and the rear frame connecting pin shaft 403 are matched with the upper through holes, and the support connecting pin shaft 408 is matched with the lower through holes. The rear frame body 405 is connected to the main frame body 401 by the front and rear frame connecting pins 403 and the strut connecting pins 408, and the mating shaft segments are shown as C in fig. 5. The support 404 is connected to the main frame 401 by a support connection pin 408, the mating shaft segment being shown as E in fig. 5. One end of a cylinder body of the rear supporting oil cylinder 806 is matched with the main frame body 401 through the front and rear frame connecting pin shaft 403, a matching shaft section is shown as D in fig. 5, one end of a piston rod of the rear supporting oil cylinder 806 is matched with the supporting device 404 through the rear supporting oil cylinder connecting pin shaft 409, and the supporting device 404 rotates around the supporting device connecting pin shaft 408 through the extension and retraction of the rear supporting oil cylinder 806, so that the purpose of falling and retracting of the supporting device 404 is achieved. The bottom of the support 404 can contact the ground when the support falls, the equipment can be supported off the ground when the equipment needs to be stopped for maintenance, and the support 404 is retracted so that the support cannot contact with ground obstacles when the equipment travels, and therefore ground resistance cannot be formed.

It should be noted that, during assembly, the number of the front and rear frame connecting pins 403 and the number of the support connecting pins 408 in this embodiment may be determined according to actual conditions, that is, each of the connecting pins may be a pair or may be a single connecting pin. By respectively adopting a pair of pairs, all the first connecting lug plate, the second connecting lug plate, the first reinforcing lug plate, the second reinforcing lug plate and the third reinforcing lug plate can be divided into two groups along the width direction of the main frame body, and each group adopts a front and rear frame connecting pin shaft 403 and a support connecting pin shaft 408. When one is adopted, the first connecting lug plate, the second connecting lug plate, the first reinforcing lug plate, the second reinforcing lug plate and the third reinforcing lug plate respectively penetrate through a front frame connecting pin shaft 403 and a rear frame connecting pin shaft 408.

Since the frame portion of the present embodiment is a basic component of the entire equipment, the main frame body is provided with the following structures in addition to the above-described structures: a cutting part connecting lug plate (as shown in fig. 2 a) for connecting the frame part 4 and the cutting part 1 through a cutting part connecting pin 406 is arranged on both sides of one end (namely, the front end of the main frame body, wherein the front end refers to one end of the frame part for installing the cutting part, and the end for installing the support is the rear end, which is similarly understood to equip other parts) of the main frame body 401 far away from the rear frame body 405; a traveling part connecting groove 407 which extends in the vertical direction and is used for connecting with a traveling frame body of the traveling part 5 is formed in the lower part of the main frame body 401; a crushing unit connecting lug plate for connecting the frame unit 4 and the crushing unit 7 by a crushing unit connecting pin 402 is provided at an upper portion of the main frame 401 on a side close to the rear end (i.e., on the right side in fig. 2a, the left side of the equipment is the left side and the right side is the right side with respect to the equipment advancing direction); and a blade pin lug 410 for hinging with the load section blade by a pin.

The frame portion of this embodiment, it is first through addding on the body frame body, the otic placode is strengthened to the second, add the third on the back support body and strengthen the otic placode, and through the preceding back frame connecting pin axle, supporter connecting pin axle and back support hydro-cylinder connecting pin just can be with the body frame body with the back support body, the body frame body and supporter, the body frame body is in the same place with back support hydro-cylinder interconnect, the prior art need be at the body frame body cancelled, set up the flange on the back support body respectively, and install the structure of location cylinder round pin and the screw hole that is used for the fastening on the flange face, greatly simplify the connection structure between the front and back frame (be main frame and back support body), and link together the body frame body and back support body owing to need not adopt a plurality of bolts, make equipment maintenance dismantlement simple. The first and second reinforcing ear plates which are additionally arranged increase the width of the main frame body, improve the connection strength between the main frame body and the rear frame body, avoid the problem of poor processing manufacturability caused by flange connection in the prior art, ensure the connection reliability of the main frame body and the rear frame body, save the design space and optimize the design structure.

The traveling unit 5 of the present embodiment is installed below the frame unit 4, and includes a pair of crawler traveling devices for traveling the driving equipment on both sides of the frame unit.

Each crawler belt traveling device includes: a walking frame body connected with one side of the bottom of the main frame body of the frame part; the driving device is arranged on the walking frame body and positioned at one end of the walking frame body and used for providing driving force, and is provided with a driving motor, a driving chain wheel and a cantilever type speed reducer structure; the driven device is arranged on the walking frame body and positioned at the other end of the walking frame body, and is provided with a tensioning wheel set and a tensioning adjusting mechanism for adjusting the tensioning force of the tensioning wheel set; a pair of tension wheels surrounding the tension wheel set and a crawler belt driving a chain wheel; a portion of the cantilevered type speed reducer structure with the driving motor therein is installed in the walking frame body 506, and another portion thereof is suspended outside the walking frame body 506 along the length extending direction of the walking frame body (as shown in fig. 6a and 6 b).

Wherein, cantilever type reduction gear structure includes: a cantilever type reducer case 531; a reduction transmission device integrated in the cantilever type reducer box body 531. This cantilever type reduction gear box 531 includes: a part of the straight-tooth transmission case is arranged in the walking frame body 506, and the other part of the straight-tooth transmission case extends out of the walking frame body 506; a planetary gear box connected to the other part of the spur gear box and extending out of the traveling frame body 506; wherein, the driving chain wheel 502 is connected with the power output part of the planetary transmission case extending out of the walking frame body 506.

The cantilever type reduction gear structure of the present embodiment has a cantilever type reduction gear case 531, and the cantilever type reduction gear case 531 includes a spur gear case for housing a spur gear reduction mechanism and a planetary gear case for housing a planetary gear mechanism, that is, the reduction gear structure includes a spur gear reduction gear 503a and a planetary gear reduction gear 503b (as shown in fig. 9 a).

Wherein, a part of the straight-tooth transmission case is arranged in the walking frame body 506, the other part of the straight-tooth transmission case extends out of the walking frame body 506 (as shown in a block diagram enclosed by dotted lines in fig. 7 and fig. 10), the planetary transmission case is connected with the other part of the straight-tooth transmission case, and is suspended out of the walking frame body 506 together with the other part of the straight-tooth transmission case, and the driving chain wheel 502 is connected with the power output part of the planetary transmission case.

The second straight-tooth transmission mechanism is arranged in the cavity with an opening at one side (namely, the side facing the viewer when the walking part is in the position shown in fig. 9) of the overhanging box body, and the cavity with an opening at the other side (namely, the side facing away from the viewer when the walking part is in the position shown in fig. 9) of the overhanging box body is used for arranging one part of the planetary transmission mechanism (namely, the first-stage planetary transmission assembly described later) in the cavity with an opening.

The planetary transmission mechanism is provided with a primary planet carrier and a secondary planet carrier, and a chain wheel coupling disc 542 connected with the driving chain wheel 502 and the secondary planet carrier of the planetary transmission mechanism respectively is arranged between the driving chain wheel and the secondary planet carrier, namely, the secondary planet carrier is connected with the chain wheel coupling disc 542, and the chain wheel coupling disc 542 is connected with the driving chain wheel 502. When designed, the sprocket coupling plate 542 has a square coupling portion 5421 (shown in FIG. 15), and the drive sprocket 502 has a square hole (shown in FIG. 16) that couples with the square coupling portion 5421.

Wherein, the cantilever type reduction gear box 531 of the embodiment is internally provided with a reduction transmission device, which comprises: a first spur gear drive mechanism integrated in a portion of the spur gear case; the second straight-tooth transmission mechanism is integrated in the other part of the straight-tooth transmission box and is in transmission connection with a last-stage straight-tooth transmission assembly of the first straight-tooth transmission mechanism; and the planetary transmission mechanism is integrated in the planetary transmission case and is connected with the final straight tooth transmission assembly of the second straight tooth transmission mechanism.

The speed reducer structure of this embodiment integrates elements such as speed reduction transmission in the cantilever type speed reducer box for equipment integrated level is high, the structure is compacter.

As shown in fig. 9a, 9b and 10, the first spur gear mechanism of the present embodiment includes a first spur gear assembly, which includes a first shaft gear assembly 533, a second shaft gear assembly 534 and a third shaft gear assembly 535; the second straight-tooth transmission mechanism comprises three-level straight-tooth transmission assemblies, namely a four-shaft transmission assembly 537, a five-shaft transmission assembly 538 and a six-shaft transmission assembly 539; the planetary transmission mechanism comprises two stages of planetary transmission assemblies, namely a first stage planetary transmission assembly 540 and a second stage planetary transmission assembly 541. The first-axis transmission assembly, the second-axis transmission assembly and the third-axis transmission assembly 535 form first-stage gear transmission, the third-axis transmission assembly 535 and the fourth-axis transmission assembly 537 form second-stage gear transmission, the fourth-axis transmission assembly 537 and the fifth-axis transmission assembly 538 form third-stage straight tooth transmission, the fifth-axis transmission assembly 538 and the sixth-axis transmission assembly 539 form fourth-stage straight tooth transmission, the first-stage planetary transmission assembly 540 and the sixth-axis transmission assembly 539 are in coaxial transmission, namely, the first-stage planetary transmission assembly 540 and the sixth-axis transmission assembly 539 are coaxial, and the two-stage planetary transmission assemblies are cylindrical planetary transmission assemblies.

During assembly, the first shaft transmission component 533, the second shaft transmission component 534 and the third shaft transmission component 535 are arranged in a square box body of the straight-tooth transmission box, the fourth shaft transmission component 537, the fifth shaft transmission component 538 and the sixth shaft transmission component 539 are arranged in a suspension box body of the straight-tooth transmission box, the first-stage planetary transmission component 540 is arranged in a cavity at the rear side of the suspension box body, and the second-stage planetary transmission component 541 and the first-stage planetary transmission component 540 are coaxial and are positioned at one side (namely, one side departing from a viewer) of the first-stage planetary transmission component 540.

In addition, a driving motor 504 for driving the first spur gear transmission mechanism and a brake 536 for braking are further installed in the square box body of the spur gear transmission case, wherein a power output shaft of the driving motor 504 is connected with a transmission shaft of the first shaft transmission assembly 533, the motor output power is transmitted to the four shaft transmission assembly through the first shaft transmission assembly and the second shaft transmission assembly sequentially, and the brake 536 is installed on the transmission shaft of the third shaft transmission assembly 535 so as to brake the first spur gear transmission mechanism. The four-shaft transmission assembly transmits the power transmitted by the first straight-tooth transmission mechanism to the primary planetary transmission assembly 540 and the secondary planetary transmission assembly 541 through the five-shaft transmission assembly and the six-shaft transmission assembly in sequence, and transmits the power to the driving chain wheel 502 through the power output part of the secondary planetary transmission assembly 541 so as to drive the equipment to walk through the driving chain wheel 502.

In order to form the reduction gear box of this embodiment into a suspended reduction gear box, the traveling frame body 506 of this embodiment has a structure as shown in fig. 12 to 14, and includes a first frame 5061 having two openings on only one side (one side is the side facing the viewer in fig. 13) and a second frame 5062 having a full opening on the same side as the one side and a half opening on the one side (one side is the side facing the viewer in fig. 13 and one end is the end located on the left side facing the viewer) and a half opening. The second frame 5062 is provided with an inner vertical plate 5063 extending in a vertical direction and fixed between an upper vertical plate 5066 and a lower vertical plate 5067 of the second frame 5062, and an upper flange plate 5064 and a lower flange plate 5065 respectively connected to the upper vertical plate 5066 and the lower vertical plate 5067 of the second frame 5062. One part of the straight-tooth transmission case is a square case, and the square case is detachably connected with an inner vertical plate 5063, an upper flange plate 5064 and a lower flange plate 5065 of a second frame 5062 of the walking frame body 506 respectively. An M20 through hole is arranged on a vertical plate used as a valve plate of the speed reducer box body, so that an oil temperature sensor 556 is arranged at the through hole.

When the speed reducer structure of this embodiment is assembled with the traveling frame body, a part of the straight-tooth transmission case (i.e., the square case body) in which the speed reduction transmission device is assembled is required to be installed at a fixed position in the traveling frame body 506 from the half opening of the second frame 5062 of the traveling frame body 506, as follows:

1. first to sixth shaft transmission assemblies are assembled in a straight gear transmission case, a power output shaft of the driving motor 504 is connected with a transmission shaft of the first shaft transmission assembly 533, a brake 536 is installed on the transmission shaft of the three shaft transmission assembly 535, then a square case body of the straight gear transmission case is installed inside the walking frame body 506 from a half opening of the second frame 5062 of the walking frame body 506, and the square case body is connected and fixed with an inner side vertical plate 5063 of the walking frame body 506 by a phi 400 connecting pin 544 and a phi 300 connecting pin 510, as shown in fig. 10.

It should be noted that, the connection mode of each transmission assembly and the straight-tooth transmission case may refer to a connection mode in which the transmission assembly is mounted on the transmission case in the prior art, and after each transmission assembly is mounted on the transmission case, a transparent cover is further required to seal, prevent dust and axially position, and a related connection mode is not described here.

2. The upper and lower flange plates 5064 and 5065 of the square case and walker body 506 are connected and secured by a plurality of phi 60 cylindrical pins 551 (6 pins 551 are shown) as shown in figure 7.

3. One side of the square box body (the side of the square box body, which is far away from the cantilever box body) is connected and fixed with one side of the walking frame body 506 by using 2M 64x4 long lead screws 547, M64x4 hydraulic nuts 548 and corresponding washers, and the other side of the square box body is connected and fixed with the other side of the walking frame body 506 by using 2M 36x3 long lead screws 552, washers 553, M36x3 hydraulic nuts 554, so that the square box body part of the straight-tooth transmission box and the walking frame body are connected into a whole by 4 long lead screws and hydraulic nuts, as shown in figures 7 and 8.

4. The square box of the straight-tooth transmission box is fastened and connected with the upper flange plate 5064 and the lower flange plate 5065 of the walking frame body 506 into a whole by using 20M 30x200 screws 549 and matched washers 550, as shown in figures 7 and 8.

After the above operations are completed, the square box body of the straight-tooth transmission case is fixed inside the traveling frame body 506, and the overhanging box body of the straight-tooth transmission case overhangs outside the traveling frame body to form a cantilever structure (as shown by a dotted line frame in fig. 7 and fig. 10), so that the straight-tooth transmission case in the reducer box body becomes a cantilever straight-tooth transmission case.

After the spur gear box and the traveling frame body, in which the reduction gear is assembled, are assembled, a planetary gear box and a drive sprocket (shown in fig. 9a, 9b, and 11) are assembled as follows:

1. assembly of the Primary planetary drive Assembly 540

First, first-stage ring gear 574 is installed in cavity 5390 (i.e., first-stage ring gear hole pocket) on one side (i.e., the side facing away from the viewer) of the suspension box of the straight-tooth transmission case as shown in fig. 10, and first-stage ring gear 574 is pressed into first-stage ring gear hole pocket of the straight-tooth transmission case by using M24x50 screw 564 and spring washer, so that first-stage ring gear 574 is fixed on the suspension box.

Then, the primary planet gears 565, the primary planet gear pins 566, the SL18500 bearings 567, the distance sleeves a and B568, the retainer rings 570, the primary sun gears 569, the distance pads a 571, the retainer rings 572 and the primary planet carriers 573 are assembled (the assembling method is similar to the method for assembling the planetary transmission assembly in the prior art and is not repeated here), and the assembled assembly is installed in the inner ring gear holes of the primary inner ring gear 574, so that the outer spline of the sun gear shaft of the primary sun gear 569 is meshed with the inner spline of the output gear of the six-shaft transmission assembly in the assembled straight-tooth transmission case, and meanwhile, the primary sun gear 569, the primary planet gears 565 and the primary inner ring gear 574 are meshed with each other. In this way, the six-shaft transmission assembly can transmit the output power to the primary sun gear 569, the primary planet gears 565 and the primary planet carrier 573 in sequence through the output gear, so as to realize primary planet speed reduction. Since first-stage ring gear 574 is fixed, first-stage sun gear 569 is a driving member, and first-stage carrier 573 is a driven member.

2. Assembly secondary planetary drive assembly 541

After the primary planetary transmission assembly 540 is assembled, a phi 50 cylindrical pin 575, a M30x2x495 screw 561 and a M30x2 locknut 562 are adopted to mount a secondary annular gear 576 on a straight-tooth transmission box suspension box body (a hole or a groove used for being matched with the cylindrical pin 575 and the screw 561 is arranged at a corresponding position of the suspension box body), and the secondary annular gear is matched with a corresponding position of the suspension box body by a phi 802 circular seam allowance (the secondary annular gear is provided with an inner seam allowance, and the suspension box body is provided with an outer seam allowance).

Then, according to the method for installing the primary planetary transmission assembly, the secondary planetary gear 589, the secondary planetary gear pin shaft, the bearing, the distance sleeve, the retainer ring, the secondary sun gear 577, the distance pad, the seal ring, the secondary planetary carrier 587 and the like are assembled, and the secondary sun gear 577 is connected with the primary planetary carrier 573 in a matching manner through the inner spline and the outer spline. Thus, the output gears of the second-stage sun gear, the first-stage sun gear and the six-shaft transmission assembly are coaxial, and the power output by the output gear of the six-shaft transmission assembly can be transmitted to the second-stage planet carrier 587 through the first-stage planetary transmission assembly 540. In the secondary planetary transmission assembly, a secondary inner gear ring is fixed on a straight-tooth transmission case suspension extending case body, so that a secondary sun gear is a driving part, and a secondary planet carrier is a driven part. Wherein, the secondary planet carrier is the power output component of the planetary reducer.

3. Assembly sprocket coupling disk 542 with drive sprocket 502

After the second-stage planetary transmission assembly is assembled, the bearing seat 578 and the sprocket coupling disk 542 are sequentially sleeved outside the second-stage planet carrier 587 along the axial direction of the second-stage sun gear, so that an inner hole spline of the sprocket coupling disk 542 is meshed with an outer spline of the second-stage planet carrier 587, a part of the bearing 579 and the bearing bushing 588 are installed in the bearing seat 578, and the bearing seat 578 is rotatably connected with the sprocket coupling disk 542.

And a bearing gland 581 is arranged on the end face, away from the secondary sun gear, of the bearing seat 578, the bearing gland 581 is arranged on the end face of the bearing seat 578 through an M24x60 screw 580 and a spring washer, and a dust ring 582 and a floating oil seal 583 are arranged between the inner hole of the bearing gland 581 and the inner wall of a groove of the chain wheel coupling disc 542, which is used for arranging the bearing and the bearing seat. And a connecting disc gland 584 is installed at the end part of the secondary planet carrier 587 far away from the secondary sun gear, is fixedly connected with the end part of the secondary planet carrier 587 through an M30x50 screw 585 and a spring washer, and is provided with a sealing ring between the connecting disc gland 584 and an inner hole of the chain wheel connecting disc 542.

Then, the driving sprocket 502 is mounted to the other end of the sprocket coupling plate 542, the square connecting portion 5421 at the other end of the sprocket coupling plate 542 is fitted into the square hole at the center of the driving sprocket 502, and the driving sprocket 502 and the sprocket coupling plate 542 are fixedly coupled by using M30x140 screws 586 and spring washers, so that the power of the secondary planet carrier 587 can be transmitted to the driving sprocket 502.

By the method, the planetary transmission case and the straight-tooth transmission case can be connected into a cantilever type speed reducer case body, one end of the cantilever type speed reducer case body is fixed on the walking frame body, and the other end of the cantilever type speed reducer case body extends out of the walking frame body.

The straight-tooth transmission case and the planetary transmission case in the cantilever type speed reducer box body are suspended outside the walking frame body, and the power output part of the planetary transmission case is connected with the driving chain wheel, so that when a speed reducing mechanism and the driving chain wheel which are positioned in the planetary transmission case are maintained, the parts can be conveniently installed or disassembled under the condition that the whole speed reducer box body is not disassembled, the labor intensity of workers is greatly reduced, and the labor productivity is improved.

In addition, this embodiment places partial reduction gear box (being the partly of straight-tooth transmission case) in the annular space that walking frame body, drive sprocket and track formed, ingenious rational utilization walking frame body inner space, greatly avoided adopting among the prior art to install driving motor, reduction gear box etc. on walking frame body upper portion, outside and receive the risk of pounding and bumping, also provide wide space for other spare parts of walking frame body upper portion installation.

In order to meet the requirement of large traction force of the large-scale crawler-type excavating equipment, the driving motor adopted by the cantilever type speed reducer structure is a permanent magnet variable frequency synchronous motor, the permanent magnet variable frequency synchronous motor is excited by magnetic flux provided by a rare earth permanent magnet to replace excitation windings of an excitation motor, a coil or a squirrel cage of a rotor is omitted, the motor structure is simplified, and the cantilever type speed reducer structure has the advantages that the excitation motor cannot match. Compared with the prior art in which a three-phase asynchronous motor is adopted in the crawler-type excavating equipment, the permanent magnet variable frequency synchronous motor adopted as the driving motor in the embodiment has the following advantages:

1. the crawler-type excavating equipment is large-scale equipment, a permanent magnet variable frequency synchronous motor is used as a driving motor, the crawler-type excavating equipment can be started in a full-load manner by limit torque, and the starting torque is large.

2. The rotor winding of the permanent magnet variable frequency synchronous motor has no induced current and no rotor resistance and hysteresis loss, so that the temperature rise of the driving motor is low and the efficiency is high.

3. The permanent magnet variable frequency synchronous motor adopts a permanent magnet, the rotor winding of the motor has no induced current, and the power factor is much higher than that of an excitation motor.

4. The permanent magnet variable frequency synchronous motor saves a coil or a squirrel cage of a rotor, simplifies a motor structure, is smaller in size, lighter in weight, simple in structure and reliable in operation, and can be used as a driving motor of the crawler-type excavating equipment of the embodiment, so that a part of the cantilever type speed reducer structure for arranging the driving motor can be arranged in the walking frame body, the inner space of the walking frame body is ingeniously and reasonably utilized, and the driving motor is prevented from being damaged.

The cantilever type speed reducer structure of the present embodiment further includes, in addition to the structure having the above-described features: an oil temperature sensor 556 (shown in fig. 7 and 8) mounted on the cantilever type reducer structure for detecting the temperature of the hydraulic oil of the reducer structure; an encoder 555 (shown in fig. 9 a) mounted on the cantilevered decelerator structure for detecting the travel speed of the tracked mining apparatus; a stator temperature sensor (not shown) mounted on the cantilever type reducer structure for detecting the temperature of the driving motor; the oil temperature sensor 556, the encoder 555 and the stator temperature measuring sensor are electrically connected to the control device of the electric part 9, respectively. The cantilever type speed reducer structure of the embodiment is reserved with an intelligent data interface, namely, a walking speed encoder 555, an oil temperature sensor 556, a stator temperature measuring sensor and the like are arranged in the cantilever type speed reducer structure, and the elements are electrically connected with a control device of the electric control part 9, so that the functions of dynamic monitoring of operation data of the cantilever type speed reducer structure, remote screen data display and remote human intervention can be realized through the control device, and the intelligent and visual requirements of equipment walking are met.

During assembly, the encoder 555 of this embodiment is installed in the cover that passes through greatly of the four-axis drive assembly 537 of cantilever type reduction gear structure, and this cover that passes through greatly is installed the cover that passes through on the cantilever type reduction gear box after assembling the four-axis drive assembly 537 in the cantilever type reduction gear box of cantilever type reduction gear structure for sealed, dustproof and axial positioning. The oil temperature sensor 556 is installed at the perforated hole of the cantilever type speed reducer box body, which is punched out with M20, and the stator temperature sensor is installed in the junction box of the driving motor.

To meet the above-mentioned intelligent and visual requirements of the structure of the cantilever-type speed reducer according to the present embodiment, the present embodiment may adopt a control device shown in fig. 17, which includes: a Semiconductor Test System (STS) main control module respectively connected with the oil temperature sensor 556 and the encoder 555; the motor control module is connected with the stator temperature measuring sensor; and the display module is connected with the STS main control module and the motor control module. Further, the control system further includes: the walking comprehensive control module is respectively connected with the STS main control module and the motor control module through a CAN bus; and the frequency converter, the pressure relay and the brake electromagnetic valve are connected with the walking comprehensive control module.

The control procedure of the control device of the present embodiment is briefly described below.

The oil temperature sensor 556 and the encoder 555 transmit parameters such as the temperature of the hydraulic oil and the equipment traveling speed measured when the cantilever type speed reducer structure works to the STS main control module, and then the measured temperature and speed data are displayed through a display screen connected with an RS232 interface of the STS main control module. The stator temperature measurement sensor transmits the detected temperature data of the driving motor to the APM analog quantity or the motor control module, and the temperature data is displayed through a display screen (a Chinese display can be adopted in the embodiment) connected with an RS232 interface of the APM analog quantity or the motor control module. Through a CAN bus, the TCC walking integrated control module processes signals obtained by the STS main control module and the motor control module and then transmits the processed signals to actuating mechanisms such as a frequency converter, a brake solenoid valve, a pressure relay and the like, thereby realizing the speed regulation and braking functions of the cantilever type speed reducer structure.

The crawler traveling device of this embodiment includes, in addition to the above-mentioned driving device, a driven device installed on the traveling frame body 506 and located at the other end of the traveling frame body 506 where the driving device is not installed, the driven device has a tension pulley set and a tension adjusting mechanism for adjusting a tension force of the tension pulley set, and the tension adjusting mechanism employs a component including a tension cylinder 507. In addition, the present embodiment is provided with a guide rail 517 (as shown in fig. 6a and 6 b) at the other end (i.e., the end for mounting the driven device) of the traveling frame body 506.

Specifically, as shown in fig. 19, the tension pulley set 508 of the embodiment includes a tension bracket 511, a tension frame body 515, a tension pulley shaft 514, a pair of tension end covers 516 and a pair of tension pulleys 512, the tension bracket 511 and the tension frame body 515 are connected by screws, two ends of the tension pulley shaft 514 respectively penetrate through the left side and the right side of the tension frame body 515, two ends of the tension pulley shaft 514 are respectively connected with the pair of tension end covers 516 by bolts, the pair of tension pulleys 512 are rotatably installed at two ends of the tension frame body 515 through bearings and are driven by the crawler 501 to rotate at two sides of the tension frame body 515, and the tension pulleys 512 are axially positioned through the tension end covers 516. The tension frame body 515 of the tension wheel set 508 is attached to the guide rail 517 of the traveling frame body 506 so as to slide in the guide rail 517.

The tensioning adjusting mechanism comprises a tensioning oil cylinder 507 connected with a tensioning bracket and used for adjusting tensioning of the crawler belt 501, a cylinder body of the tensioning oil cylinder 507 is installed in a box body on one side of the walking frame body 506 through a bolt, an extending end of a piston rod of the tensioning oil cylinder is connected with the tensioning bracket 511 in the tensioning wheel group 508, and the piston rod of the tensioning oil cylinder can move in a telescopic mode along the walking direction of the walking frame body 506. When the tensioning cylinder 507 extends and retracts, the tensioning bracket 511 is driven to extend and retract and move and each component mounted thereon moves, and when moving, the movement direction of the whole tensioning wheel set 508 is guided through the sliding connection between the tensioning frame body 515 and the guide rail 517.

The crawler 501 is wound around a pair of tension wheels 512 and a driving sprocket 502 at two ends of the walking frame body 506 and around the whole walking frame body 506, a crawler sliding rail 515 is arranged at the lower side of the walking frame body 506, two ends of the crawler sliding rail 515 are respectively close to the tension wheel set 508 and the driving sprocket 502, the moving direction of the crawler 501 can be guided, and the function of positioning the crawler 501 and preventing the crawler 501 from walking and sideslipping is achieved.

Tensioning of the track 501 is achieved by driving a tensioning wheel set 508 through a tensioning oil cylinder 507. After the walking part with the installed crawler belt 501 is formed, the tensioning cylinder 507 is operated through a hydraulic system, a piston rod of the tensioning cylinder 507 moves telescopically and drives the connected tensioning bracket 511 to move telescopically, the position of the whole tensioning wheel set 508 on the guide rail 517 of the walking frame body 506 is changed, and the position of the tensioning wheel relative to the walking frame body is also changed, namely, the center distance between the tensioning wheel and the driving sprocket is changed, so that the states of the crawler belt 501 surrounding the tensioning wheel 512 and the driving sprocket 502 can be switched between loosening and tensioning.

In this embodiment, a pair of crawler traveling devices are symmetrically installed at the lower ends of the left and right sides of the frame portion, so that the traveling portions are in a grounding state, corresponding power is provided by the driving motors 504 of the pair of crawler traveling devices to drive the driving sprocket 502, and the traveling motion of the equipment is realized by the engagement of the crawler 501 with the driving sprocket 502 and the tension wheel 512. When the crawler belt is slack, the tensioning oil cylinder can drive the tensioning wheel set 508 to perform tightness adjustment. According to the work requirement, the control device can easily realize the actions of forward movement, backward movement, left-right turning and the like of the equipment.

Compared with the traditional walking mechanism of the excavating equipment, the walking part of the invention directly drives the cantilever type speed reducer structure to output power by using the driving motor in a driving mode, has the characteristics of low driving rotating speed, high starting torque, large traction force and the like compared with the traditional hydraulic driving, and is suitable for large-scale open pit coal mine excavating operation. Compared with the prior art, the crawler belt tensioning device has the advantages that the tensioning oil cylinder is used for pushing the tensioning wheel set to achieve a crawler belt tensioning function, the oil cylinder is large in thrust, high in strength, simple to operate, stable in performance and convenient to install.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can modify the principle of the present invention, and thus, various modifications made in accordance with the principle of the present invention should be understood to fall within the scope of the present invention.