阅读说明：本技术 推移车和露天煤矿开采设备 (Pusher carriage and open pit coal mining equipment ) 是由 张学瑞 马凯 任晓力 陈庆贺 胡蕾 梁大海 徐双用 刘长龙 张雪峰 刘晨 汪鑫 于 2021-01-11 设计创作，主要内容包括：本发明公开了一种推移车和露天煤矿开采设备,所述推移车包括车体、车轴组件、滚轮组件和供油组件,车轴组件设在车体上,车轴组件的两端均延伸至车体外侧,车轴组件内设有贯穿车轴组件的第一通道,滚轮组件设在车轴组件的端部,滚轮组件内设有供车轴组件的端部插入的容纳腔,滚轮组件与车轴组件可转动地相连,容纳腔与第一通道连通,容纳腔用于存储润滑油,供油组件用于向第一通道内供入润滑油。本发明的推移车能够自动补给润滑油,节省了推移车维修保养时间,提高了使用效率。(The invention discloses a pushing trolley and open pit coal mining equipment, wherein the pushing trolley comprises a trolley body, an axle assembly, a roller assembly and an oil supply assembly, the axle assembly is arranged on the trolley body, two ends of the axle assembly extend to the outer side of the trolley body, a first passage penetrating through the axle assembly is arranged in the axle assembly, the roller assembly is arranged at the end part of the axle assembly, an accommodating cavity for inserting the end part of the axle assembly is arranged in the roller assembly, the roller assembly is rotatably connected with the axle assembly, the accommodating cavity is communicated with the first passage and is used for storing lubricating oil, and the oil supply assembly is used for supplying the lubricating oil into the first passage. The pushing trolley can automatically supply lubricating oil, saves the time for maintaining the pushing trolley and improves the use efficiency.)

1. A push cart, comprising:

a vehicle body;

the axle assembly is arranged on the vehicle body, two ends of the axle assembly extend to the outer side of the vehicle body, and a first channel penetrating through the axle assembly is arranged in the axle assembly;

the roller assembly is arranged at the end part of the axle assembly, a containing cavity for inserting the end part of the axle assembly is formed in the roller assembly, the roller assembly is rotatably connected with the axle assembly, the containing cavity is communicated with the first channel, and the containing cavity is used for storing lubricating oil;

and the oil supply assembly is used for supplying lubricating oil into the first channel.

2. The push cart of claim 1, wherein the axle assembly comprises:

the first axle is arranged on one side of the width direction of the vehicle body, and a first channel section is arranged in the first axle;

the second axle is arranged on the other side of the width direction of the vehicle body, and a second channel section is arranged in the second axle;

the oil supply assembly comprises a first pipeline, one end of the first pipeline is connected with the first vehicle axle, the other end of the first pipeline is connected with the second vehicle axle, the oil supply assembly is communicated with the first pipeline, a third channel section is arranged in the first pipeline, one end of the third channel section is communicated with the first channel section in a sealing mode, the other end of the third channel section is communicated with the second channel section in a sealing mode, and the first channel section, the second channel section and the third channel section form the first channel.

3. The pusher carriage of claim 2, wherein the first axle and the second axle are each inserted into the carriage body, and the carriage body is provided with a through hole into which the first axle and the second axle are inserted.

4. The pushing trolley as claimed in claim 3, wherein the outer peripheral sides of the first axle and the second axle are provided with flanges, and the flanges are used for being fixedly connected with a trolley body.

5. The pusher carriage of claim 1, wherein the roller assembly comprises:

an annular roller wheel rotatably and sealingly coupled to an outer periphery of the bearing assembly;

the end cover is fixed on one side, away from the vehicle body, of the annular roller and used for sealing and plugging one side of the annular roller, and the annular roller and the end cover enclose the accommodating cavity;

the bearing sleeve is arranged on the periphery of the axle assembly, and the annular roller sleeve is arranged on the periphery of the bearing.

6. The pusher carriage of claim 5, wherein the annular roller has a first annular groove formed in an inner peripheral side thereof, and wherein a first sealing member is formed in the first annular groove for rotatably and sealingly connecting the annular roller and the axle assembly.

7. The pushing trolley of claim 5, wherein a second ring groove is formed in the outer peripheral side of the end cover, and a second sealing element is arranged in the second ring groove and used for sealing and connecting the end cover and the annular roller.

8. The push cart of claim 5, wherein the axle assembly includes an annular baffle disposed at an end of the axle assembly, the axle assembly having a shoulder disposed about an outer periphery of the axle assembly, one side of the bearing being stopped by the shoulder and the other side of the bearing being stopped by the annular baffle.

9. The push trolley of claim 5, wherein the end cover is provided with a first oil filling port, the first oil filling port is communicated with the accommodating cavity, and the first oil filling port is used for filling lubricating oil into the accommodating cavity.

10. An open pit coal mining device, characterized in that, including band conveyer, track platform, pass car and drive assembly, pass the car and establish on the track platform, and follow the track platform is portable, pass the one end of car with band conveyer is connected, pass the other end of car with drive assembly is connected, drive assembly is used for driving pass the car along the reciprocating motion of track platform, pass the car according to any one of claims 1-9 pass the car.

Technical Field

The invention relates to the technical field of open pit mining equipment, in particular to a pushing vehicle and open pit coal mining equipment with the same.

Background

The open-air side coal-pressing mining needs to be carried out by means of special open-air coal mining equipment, the open-air coal mining equipment comprises a coal mining machine, a belt conveyor, a walking platform and the like, wherein the belt conveyor is arranged on the walking platform, and a pushing device is arranged between the belt conveyor and the walking platform. In the mining process, the belt conveyor needs to be pushed to a coal face by the aid of the pushing device on one hand, and on the other hand, the belt conveyor needs to be retracted to the walking platform by the aid of the pushing device on the other hand.

In order to facilitate the pushing, a roller is adopted by the pushing device in the related art to reduce the friction effect, lubricating oil needs to be filled at the bearing of the roller, however, the lubricating oil consumption under the actual working condition is large, so that the friction effect of the pushing device is easily increased, the pushing device is greatly abraded, the failure rate is improved, and in order to supplement the lubricating oil, the pushing device needs to consume a certain time for maintenance, so that the use efficiency of the pushing device is reduced.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the invention provides the pushing trolley, which can automatically supply lubricating oil in the running process, save the maintenance time of the pushing trolley, improve the use efficiency and avoid the problem of frequent faults caused by insufficient lubrication.

The invention also provides opencast coal mining equipment using the push trolley.

A push cart according to an embodiment of the first aspect of the invention comprises: a vehicle body; the axle assembly is arranged on the vehicle body, two ends of the axle assembly extend to the outer side of the vehicle body, and a first channel penetrating through the axle assembly is arranged in the axle assembly; the roller assembly is arranged at the end part of the axle assembly, a containing cavity for inserting the end part of the axle assembly is formed in the roller assembly, the roller assembly is rotatably connected with the axle assembly, the containing cavity is communicated with the first channel, and the containing cavity is used for storing lubricating oil; and the oil supply assembly is used for supplying lubricating oil into the first channel.

According to the pushing trolley disclosed by the embodiment of the invention, lubricating oil can be automatically supplied in the operation process, the maintenance time of the pushing trolley is saved, the use efficiency of the pushing trolley is improved, the pushing trolley can always keep a small friction effect, and the frequent fault caused by insufficient lubrication is avoided.

In some embodiments, the axle assembly includes: the first axle is arranged on one side of the width direction of the vehicle body, and a first channel section is arranged in the first axle; the second axle is arranged on the other side of the width direction of the vehicle body, and a second channel section is arranged in the second axle; the oil supply assembly comprises a first pipeline, one end of the first pipeline is connected with the first vehicle axle, the other end of the first pipeline is connected with the second vehicle axle, the oil supply assembly is communicated with the first pipeline, a third channel section is arranged in the first pipeline, one end of the third channel section is communicated with the first channel section in a sealing mode, the other end of the third channel section is communicated with the second channel section in a sealing mode, and the first channel section, the second channel section and the third channel section form the first channel.

In some embodiments, the first axle and the second axle are inserted into the vehicle body, and the vehicle body is provided with a through hole into which the first axle and the second axle are inserted.

In some embodiments, the outer peripheral sides of the first axle and the second axle are each provided with a flange for connecting and fixing with a vehicle body.

In some embodiments, the scroll wheel assembly comprises: an annular roller wheel rotatably and sealingly coupled to an outer periphery of the bearing assembly; the end cover is fixed on one side, away from the vehicle body, of the annular roller and used for sealing and plugging one side of the annular roller, and the annular roller and the end cover enclose the accommodating cavity; the bearing sleeve is arranged on the periphery of the axle assembly, and the annular roller sleeve is arranged on the periphery of the bearing.

In some embodiments, a first annular groove is formed in an inner peripheral side of the annular roller, and a first sealing member is disposed in the first annular groove and is configured to rotatably and sealingly couple the annular roller and the axle assembly.

In some embodiments, a second ring groove is formed on the outer peripheral side of the end cover, and a second sealing element is arranged in the second ring groove and used for sealing and connecting the end cover and the annular roller.

In some embodiments, the axle assembly includes an annular shield at an end of the axle assembly, a shoulder is disposed around the axle assembly, one side of the bearing is blocked by the shoulder, and the other side of the bearing is blocked by the annular shield.

In some embodiments, a first oil filling port is arranged on the end cover, the first oil filling port is communicated with the accommodating cavity, and the first oil filling port is used for filling lubricating oil into the accommodating cavity.

An open pit coal mining apparatus according to an embodiment of a second aspect of the present invention includes a belt conveyor, a rail platform, a pusher carriage provided on the rail platform and movable along the rail platform, one end of the pusher carriage being connected to the belt conveyor, the other end of the pusher carriage being connected to the driving assembly, and a driving assembly for driving the pusher carriage to reciprocate along the rail platform, the pusher carriage including: a vehicle body; the axle assembly is arranged on the vehicle body, two ends of the axle assembly extend to the outer side of the vehicle body, and a first channel penetrating through the axle assembly is arranged in the axle assembly; the roller assembly is arranged at the end part of the axle assembly, a containing cavity for inserting the end part of the axle assembly is formed in the roller assembly, the roller assembly is rotatably connected with the axle assembly, the containing cavity is communicated with the first channel, and the containing cavity is used for storing lubricating oil; and the oil supply assembly is used for supplying lubricating oil into the first channel.

In some embodiments, the axle assembly includes: the first axle is arranged on one side of the width direction of the vehicle body, and a first channel section is arranged in the first axle; the second axle is arranged on the other side of the width direction of the vehicle body, and a second channel section is arranged in the second axle; the oil supply assembly comprises a first pipeline, one end of the first pipeline is connected with the first vehicle axle, the other end of the first pipeline is connected with the second vehicle axle, the oil supply assembly is communicated with the first pipeline, a third channel section is arranged in the first pipeline, one end of the third channel section is communicated with the first channel section in a sealing mode, the other end of the third channel section is communicated with the second channel section in a sealing mode, and the first channel section, the second channel section and the third channel section form the first channel.

In some embodiments, the first axle and the second axle are inserted into the vehicle body, and the vehicle body is provided with a through hole into which the first axle and the second axle are inserted.

In some embodiments, the outer peripheral sides of the first axle and the second axle are each provided with a flange for connecting and fixing with a vehicle body.

In some embodiments, the scroll wheel assembly comprises: an annular roller wheel rotatably and sealingly coupled to an outer periphery of the bearing assembly; the end cover is fixed on one side, away from the vehicle body, of the annular roller and used for sealing and plugging one side of the annular roller, and the annular roller and the end cover enclose the accommodating cavity; the bearing sleeve is arranged on the periphery of the axle assembly, and the annular roller sleeve is arranged on the periphery of the bearing.

In some embodiments, a first annular groove is formed in an inner peripheral side of the annular roller, and a first sealing member is disposed in the first annular groove and is configured to rotatably and sealingly couple the annular roller and the axle assembly.

In some embodiments, a second ring groove is formed on the outer peripheral side of the end cover, and a second sealing element is arranged in the second ring groove and used for sealing and connecting the end cover and the annular roller.

In some embodiments, the axle assembly includes an annular shield at an end of the axle assembly, a shoulder is disposed around the axle assembly, one side of the bearing is blocked by the shoulder, and the other side of the bearing is blocked by the annular shield.

In some embodiments, a first oil filling port is arranged on the end cover, the first oil filling port is communicated with the accommodating cavity, and the first oil filling port is used for filling lubricating oil into the accommodating cavity.

Drawings

Fig. 1 is a front view schematically showing a part of the construction of a coal mining apparatus for an open pit coal mine according to an embodiment of the present invention.

Fig. 2 is a schematic top view of a portion of the structure of the opencast coal mine mining equipment of fig. 1.

Fig. 3 is a schematic cross-sectional view of a part of the construction of the coal mining apparatus of the opencast coal mine of fig. 1.

Fig. 4 is a schematic cross-sectional view of the rail platform of fig. 3.

Fig. 5 is a perspective view of the pusher carriage of fig. 1.

FIG. 6 is a front view of the pusher wagon of FIG. 5.

Fig. 7 is a schematic top view of the pusher wagon of fig. 5.

Fig. 8 is a schematic cross-sectional view at a-a in fig. 7.

FIG. 9 is a schematic view of the axle assembly of FIG. 8.

Fig. 10 is a partial enlarged view at B in fig. 8.

Fig. 11 is a schematic cross-sectional view of the swing assembly of fig. 5.

Fig. 12 is a schematic view of an oil supply unit of a push cart according to an embodiment of the present invention.

Reference numerals:

a track platform 1; a first rail 11; a second rail 12; a track cavity 13;

a pushing vehicle 2; a swing member 21; a swing block 211; a swing pin 212; an oiling channel 213; a second oil fill port 214; a vehicle body 22; an axle assembly 23; a first axle 231; a second axle 232; a first pipe 233; a first channel segment 234; a second channel segment 235; a third channel segment 236; an annular baffle 237; a shoulder 238; a flange 239; a roller assembly 24; an annular roller 241; an end cap 242; a bearing 243; a copper sleeve 244; the first oil fill port 245; a second seal 246; a second annular groove 247; a first ring groove 248; a first seal 249; a connecting pin shaft 25; a housing chamber 26; an oil supply unit 27; a hydraulic pump 271; a lubrication pump 272; a lubricating oil tank 273; a solenoid valve 274; an overflow valve 275; a second conduit 276;

a drive assembly 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 5 to 12, pusher carriage 2 according to the embodiment of the present invention includes a vehicle body 22, an axle assembly 23, a roller assembly 24, and an oil supply unit 27. In the present embodiment, vehicle body 22 has a first direction (front-rear direction as shown in fig. 5) and a second direction (left-right direction as shown in fig. 5).

Axle assembly 23 is provided on vehicle body 22, and both ends of axle assembly 23 extend to the outside of vehicle body 22, are equipped with the first passageway that runs through axle assembly 23 in axle assembly 23. Specifically, in the present embodiment, axle assembly 23 is fixed to vehicle body 22, axle assembly 23 is arranged to extend along the second direction of vehicle body 22, and both ends of axle assembly 23 extend to the left and right sides of vehicle body 22. In the present embodiment, a first passage (not shown) is provided in axle assembly 23, and extends along the extending direction of axle assembly 23 and penetrates axle assembly 23.

The roller assembly 24 is arranged at the end part of the axle assembly 23, the roller assembly 24 is internally provided with an accommodating cavity 26 for inserting the end part of the axle assembly 23, the roller assembly 24 is rotatably connected with the axle assembly 23, the accommodating cavity 26 is communicated with the first passage, and the accommodating cavity 26 is used for storing lubricating oil. Specifically, the both ends of axle subassembly 23 all are equipped with wheel components 24 in this embodiment, wheel components 24 rotary seal connects the tip at axle subassembly 23, it has the accent towards automobile body 22 to hold chamber 26 in this embodiment, the accent department that holds chamber 26 is connected with axle subassembly 23 rotary seal, be equipped with in wheel components 24 and supply axle subassembly 23 male chamber 26 that holds, hold chamber 26 and first passageway intercommunication, the lubricating oil that flows out from first passageway can be stored in holding chamber 26, play the lubricated effect of extension.

The oil supply unit 27 is used to supply the lubricating oil into the first passage. Specifically, oil feeding unit 27 communicates with a first passage of axle unit 23, and oil feeding unit 27 is capable of supplying lubricating oil into the first passage and serving to replenish lubricating oil in housing chamber 26.

According to the push cart 2 provided by the embodiment of the invention, the axle assembly 23 is fixed on the cart body 22, and the axle assembly 23 is fixed relative to the cart body 22 in the operation process of the push cart 2, so that lubricating oil can be conveniently and automatically supplied to the first channel of the cart group assembly, and the supplied lubricating oil can be stored in the accommodating cavity 26 of the roller assembly 24, so that the lubricating time of the lubricating oil is prolonged, the maintenance time of the push cart 2 is saved, and the use efficiency of the push cart 2 is improved.

In some embodiments, as shown in fig. 9, axle assembly 23 includes a first axle 231, a second axle 232, and a first conduit 233. The first axle 231 is provided at one side in the width direction of the vehicle body 22, and a first passage section 234 is provided in the first axle 231; the second axle 232 is provided on the other side in the width direction of the vehicle body 22, and a second passage section 235 is provided in the second axle 232; one end of the first pipeline 233 is connected to the first axle 231, the other end of the first pipeline 233 is connected to the second axle 232, the oil supply unit 27 is communicated with the first pipeline 233, a third channel section 236 is arranged in the first pipeline 233, one end of the third channel section 236 is in sealed communication with the first channel section 234, the other end of the third channel section 236 is in sealed communication with the second channel section 235, and the first channel section 234, the second channel section 235 and the third channel section 236 form a first channel.

Specifically, in the present embodiment, the first axle 231, the first pipeline 233 and the second axle 232 are sequentially arranged along the left-right direction, the first axle 231 is fixed to the left side of the vehicle body 22 and extends to the left outside of the vehicle body 22, the second axle 232 is fixed to the right side of the vehicle body 22 and extends to the right outside of the vehicle body 22, the left end of the first pipeline 233 is hermetically connected to the first axle 231, and the right end of the first pipeline 233 is hermetically connected to the second axle 232. In this embodiment, the first axle 231 has a first channel section 234 therein, the first channel section 234 penetrates both left and right sides of the first axle 231, the second axle 232 has a second channel section 235 therein, the second channel section 235 penetrates both left and right sides of the second axle 232, the first pipeline 233 has a third channel section 236 therein, and after the first axle 231, the first pipeline 233 and the second axle 232 are connected in sequence, the first channel section 234, the second channel section 235 and the third channel section 236 are communicated with each other and form a first channel. In the embodiment, the axle assembly 23 is separately arranged, the first axle 231 and the vehicle body 22 are mounted and dismounted, and the second axle 232 and the vehicle body 22 are mounted and dismounted independently, and the assembly of the first axle 231 and the vehicle body 22 and the assembly of the second axle 232 and the vehicle body 22 cannot interfere with each other, so that the mounting accuracy of the axle assembly 23 and the vehicle body 22 is reduced, and the mounting of the axle assembly 23 is facilitated. In addition, since the first duct 233 is provided between the first axle 231 and the second axle 232, the first duct 233 is hidden inside the first axle 231 and the second axle 232, which has the effect of protecting the first duct 233 and also facilitates the duct arrangement of the oil feeding unit 27.

In some embodiments, as shown in fig. 9, the first axle 231 and the second axle 232 are inserted into the vehicle body 22, and the vehicle body 22 is provided with a through hole into which the first axle 231 and the second axle 232 are inserted. Specifically, the through holes for inserting the first axle 231 or the second axle 232 are formed in the left side and the right side of the vehicle body 22 in the embodiment, and during installation, the first axle 231 or the second axle 232 is inserted into the corresponding through holes, so that the positions of the first axle 231 and the second axle 232 are convenient to locate, and the limiting effect is further achieved between the insertion hole and the first axle 231, between the insertion hole and the second axle 232, so that the fixing strength of the first axle 231 and the second axle 232 is enhanced.

In some embodiments, as shown in fig. 9, the outer peripheral sides of the first axle 231 and the second axle 232 are provided with flanges 239, and the flanges 239 are used for being fixedly connected with the vehicle body 22. Specifically, in the embodiment, the flange 239 protrudes from the outer peripheral surface of the first axle 231 or the second axle 232, and the flange 239 facilitates the connection and fixation of the first axle 231 with the vehicle body 22 and the second axle 232 with the vehicle body 22, and on the other hand, the flange 239 can also block the vehicle body 22, so as to enhance the fixation strength of the first axle 231 and the second axle 232.

In some embodiments, as shown in fig. 10, the roller assembly 24 includes a ring roller 241, an end cap 242 and a bearing 243, the ring roller 241 is rotatably and hermetically connected to the outer periphery of the bearing 243, the end cap 242 is fixed to a side of the ring roller 241 facing away from the vehicle body 22, the end cap 242 is used for sealing and sealing a side of the ring roller 241, the ring roller 241 and the end cap 242 enclose the accommodating cavity 26, the bearing 243 is disposed on the outer periphery of the axle assembly 23, and the ring roller 241 is disposed on the outer periphery of the bearing 243.

Specifically, annular gyro wheel 241 encircles the periphery at axle subassembly 23, when pushing away car 2 and moving, annular gyro wheel 241 can play the effect of gyro wheel, has reduced the friction effect of pushing away car 2. The design of the ring roller 241 and the end cover 242 facilitates the installation of the bearing 243, when the installation is carried out, firstly the bearing 243 and the ring roller 241 are fixed on the axle, then the upper end cover 242 is fixed on the ring roller 241, and the ring roller 241 and the end cover 242 form the containing cavity 26 for storing lubricating oil. In this embodiment, the bearing 243 is located in the accommodating cavity 26, and since the accommodating cavity 26 is filled with the lubricating oil, the bearing 243 is located in the environment of the lubricating oil as a whole, so that the lubricating effect of the bearing 243 is ensured, and the rotation of the roller assembly 24 is smoother and is not blocked.

In some embodiments, as shown in fig. 10, a first annular groove 248 is formed in the inner circumferential side of the ring roller 241, and a first seal 249 is formed in the first annular groove 248, the first seal 249 being used to rotatably and sealingly couple the ring roller 241 and the axle assembly 23. Specifically, in the present embodiment, the first annular groove 248 is provided on the inner circumferential surface of the ring roller 241, the first sealing member 249 is embedded in the first annular groove 248, and the first sealing member 249 can rotatably seal the gap between the ring roller 241 and the axle assembly 23, so that the lubricating oil is prevented from flowing out from between the ring roller 241 and the axle assembly 23, and the sealing performance of the accommodating chamber 26 is enhanced.

In some embodiments, as shown in fig. 10, the outer periphery of the end cap 242 is provided with a second annular groove 247, and a second sealing member 246 is provided in the second annular groove 247, wherein the second sealing member 246 is used for sealing the end cap 242 and the ring roller 241. Specifically, in the present embodiment, a part of the end cover 242 can be inserted into the ring roller 241, the second ring groove 247 is provided on the outer peripheral surface of the end cover 242, the second sealing member 246 is embedded in the second ring groove 247, and the second sealing member 246 can seal between the ring roller 241 and the end cover 242, so that the lubricating oil in the accommodating chamber 26 is prevented from flowing out from between the ring roller 241 and the end cover 242, and the sealing performance of the accommodating chamber 26 is further improved.

In some embodiments, as shown in fig. 9, the axle assembly 23 includes a third channel annular plate 237, the third channel annular plate 237 is disposed at an end of the axle assembly 23, a shoulder 238 is disposed on an outer circumference of the axle assembly 23, one side of the bearing 243 is stopped by the shoulder 238, and the other side of the bearing 243 is stopped by the third channel annular plate 237. Specifically, in the present embodiment, the shaft shoulder 238 and the third channel annular baffle 237 are disposed to facilitate the fixing of the bearing 243, so as to limit the movement of the bearing 243 along the axle assembly 23, and the inner hole of the third channel annular baffle 237 plays a role of connecting the first channel with the accommodating cavity 26, so that the lubricating oil in the first channel can directly pass through the third channel annular baffle 237.

In some embodiments, as shown in fig. 10, the end cap 242 is provided with a first oil injection port 245, the first oil injection port 245 is communicated with the accommodating cavity 26, and the first oil injection port 245 is used for injecting lubricating oil into the accommodating cavity 26. Specifically, because first oiling mouth 245 and the chamber 26 intercommunication that holds, can be directly to holding the intracavity 26 through first oiling mouth 245 and pour into lubricating oil into, increased the supply mode of holding lubricating oil in the chamber 26 on the one hand like this, on the other hand first oiling mouth 245 can also play the gaseous effect in the chamber 26 is held in the discharge, for example when fuel feeding unit 27 supplies lubricating oil to holding the intracavity 26 in, can open first oiling mouth 245, thereby avoided holding the more gaseous condition of chamber 26 cohesion, also avoided holding the chamber 26 in the condition of suppressing pressure, the injection of lubricating oil has been made things convenient for.

A pusher carriage 2 according to one specific example of the invention is described below with reference to fig. 5 to 12.

As shown in fig. 5, pusher car 2 according to the embodiment of the present invention includes a car body 22, an axle assembly 23, a roller assembly 24, and an oil supply assembly 27.

In this embodiment, there are two axle assemblies 23, two axle assemblies 23 are fixed on vehicle body 22, two axle assemblies 23 are arranged at intervals along the front-rear direction of vehicle body 22, two axle assemblies 23 extend along the left-right direction of vehicle body 22, and the two ends of each axle assembly 23 extend to the left and right sides of vehicle body 22 respectively. In the present embodiment, a first passage is provided in axle assembly 23, and the first passage extends along the extending direction of axle assembly 23 and penetrates axle assembly 23.

As shown in fig. 9, the axle assembly 23 in the present embodiment includes a first axle 231, a second axle 232, and a first pipe 233. The first axle 231, the first tube 233, and the second axle 232 are disposed in this order in the left-right direction, and the first axle 231 and the second axle 232 are coaxially arranged. In the present embodiment, the first axle 231 is fixed to the left side of the vehicle body 22 and extends to the left outside of the vehicle body 22, the second axle 232 is fixed to the right side of the vehicle body 22 and extends to the right outside of the vehicle body 22, the left end of the first pipe 233 is hermetically connected to the first axle 231, and the right end of the first pipe 233 is hermetically connected to the second axle 232. In this embodiment, the first axle 231 has a first channel section 234 therein, the first channel section 234 penetrates both left and right sides of the first axle 231, the second axle 232 has a second channel section 235 therein, the second channel section 235 penetrates both left and right sides of the second axle 232, the first pipeline 233 has a third channel section 236 therein, and after the first axle 231, the first pipeline 233 and the second axle 232 are connected in sequence, the first channel section 234, the second channel section 235 and the third channel section 236 are communicated with each other and form a first channel. It should be noted that, in order to ensure symmetry of the pushing cart 2, the first axle 231 and the second axle 232 are arranged in mirror symmetry in the present embodiment, that is, an extension line of the first axle 231 and the second axle 232 are collinear.

In the present embodiment, the cross section of the vehicle body 22 is a door shape, and through holes into which the first axle 231 and the second axle 232 are inserted are provided on both the left and right sides of the vehicle body 22. In this embodiment, flanges 239 are disposed on the outer peripheries of the first axle 231 and the second axle 232, the flanges 239 protrude out of the outer peripheries of the first axle 231 or the second axle 232, and a plurality of through holes for bolts to pass through are disposed on the flanges 239. When the first axle 231 and the second axle 232 are mounted, the first axle 231 and the second axle 232 are first inserted into the corresponding through holes, the flanges 239 on the outer peripheral sides of the first axle 231 and the second axle 232 are stopped with the vehicle body 22, and finally the flanges 239 on the first axle 231 and the second axle 232 are fixedly connected with the vehicle body 22 by bolts.

As shown in fig. 10, in the present embodiment, two ends of each axle assembly 23 are rotatably and hermetically connected with one roller assembly 24, that is, one roller assembly 24 is rotatably and hermetically connected to the left end of the first axle 231, and one roller assembly 24 is rotatably and hermetically connected to the right end of the second axle 232. In this embodiment, the roller assembly 24 includes an annular roller 241, an end cap 242 and a bearing 243, the bearing 243 is fixed on the outer periphery of the first axle 231 or the second axle 232, and the annular roller 241 is sleeved on the outer periphery of the bearing 243. In this embodiment, the end cap 242 is fixed to the end of the ring roller 241 by a bolt. The annular roller 241 and the end cover 242 enclose the accommodating cavity 26, lubricating oil is filled in the accommodating cavity 26, the axle is located in the accommodating cavity 26, the bearing 243 is sleeved on the periphery of the axle assembly 23, and the annular roller 241 is sleeved on the periphery of the bearing 243.

In order to realize the rotating seal assembly of the roller assembly 24 and the axle assembly 23, in the present embodiment, a first annular groove 248 is provided on the inner circumferential side of the annular roller 241, a first sealing member 249 is embedded in the first annular groove 248, and the first sealing member 249 is a rotating oil seal. The accommodation chamber 26 has an opening facing the vehicle body 22 in this embodiment, and the first annular groove 248 is provided at a position close to the opening of the accommodation chamber 26.

In order to enhance the sealing performance of the housing chamber 26, a second annular groove 247 is provided on the outer peripheral side of the end cap 242, and a second seal member 246 is fitted in the second annular groove 247. As shown in fig. 10, in the present embodiment, a portion of the end cap 242 can be inserted into the ring roller 241, and a second ring groove 247 is provided on the outer circumferential surface of the portion of the end cap 242 for inserting the ring roller 241. The second seal 246 is a rubber ring in this embodiment.

In order to increase the way of supplying the lubricant in the accommodating cavity 26, in the embodiment, a first oil filling port 245 is provided on the end cover 242, and an oil filling nozzle is provided at the first oil filling port 245.

In order to fix the bearing 243 on the axle assembly 23, the axle assembly 23 of the present embodiment further includes a third channel annular baffle 237, the third channel annular baffle 237 is detachably fixed on the end portion of the first axle 231 or the second axle 232 through bolts, the outer peripheries of the first axle 231 and the second axle 232 are provided with a shaft shoulder 238, and the bearing 243 is clamped between the third channel annular baffle 237 and the shaft shoulder 238 in the present embodiment, so that the situation that the bearing 243 moves along the axial direction of the axle assembly 23 is avoided.

It should be noted that, in the present embodiment, the annular roller 241 is further provided with a third annular groove, specifically, the third annular groove is a stepped groove in the present embodiment, after the roller assembly 24 is installed, one side of the outer ring of the bearing 243 can be stopped by the groove wall of the third annular groove, and the other side of the outer ring of the bearing 243 can be stopped by the end cover 242, that is, the outer ring of the bearing 243 can be clamped between the end cover 242 and the annular roller 241, so that the situation that the annular roller 241 is easily separated from the bearing 243 is avoided.

As shown in fig. 11, in the present embodiment, a swing assembly 21 is further provided on the top of the pushing cart 2, and the swing assembly 21 is used for connecting with a belt conveyor. In this embodiment, the swing assembly 21 includes a swing pin 212 and a swing block 211, the swing block 211 is L-shaped, and the middle of the swing block 211 is rotatably connected to the top of the vehicle body 22 through the swing pin 212. In order to enhance the lubricating effect of the swing pin 212, in the present embodiment, a grease injection passage 213 is provided in the swing pin 212, the grease injection passage 213 has an inlet, the inlet of the grease injection passage 213 forms a second grease injection port 214, a grease injection nozzle is mounted at the second grease injection port 214, the second grease injection port 214 is provided on the end surface of the swing pin 212 in the present embodiment, and the outlet of the grease injection passage 213 is provided on the outer peripheral surface of the swing pin 212.

The oil supply unit 27 in this embodiment includes a hydraulic pump 271, a lubrication pump 272, a lubricating oil tank 273, a solenoid valve 274, a relief valve 275, and a second line 276. In this embodiment, the hydraulic pump 271 is driven by a motor, and the lubrication pump 272 is driven by the hydraulic pump 271. In this embodiment, the electromagnetic valve 274 is provided between the hydraulic pump 271 and the lubricating pump 272, and the relief valve 275 is connected in parallel to the hydraulic pump 271. In this embodiment, a second pipe 276 is connected between the lubrication pump 272 and each of the first pipes 233, and a second passage through which the lubricating oil flows is formed in the second pipe 276. In this embodiment, the hydraulic pump 271 can drive the lubrication pump 272 to reciprocate, and the lubrication pump 272 can suck the lubrication oil from the lubrication oil tank 273 and press the lubrication oil into the first passage of the first pipeline 233 through the second pipeline 276 by driving the hydraulic pump 271. In order to simplify the second pipeline 276, in this embodiment, the second pipeline 276 includes a main pipeline and a plurality of branch pipelines, the branch pipelines are all connected to one end of the main pipeline, the other end of the main pipeline is connected to the lubrication pump 272, and the branch pipelines are all connected to each of the first pipelines 233 in a one-to-one correspondence manner in this embodiment.

In order to facilitate connection between pushing cart 2 and driving assembly 3, in this embodiment, a connecting pin 25 is further disposed at the rear end of pushing cart 2.

Since the pusher carriage 2 will rub against the track platform 1 during the moving process, in order to reduce the wear, as shown in fig. 8, a copper sleeve 244 is further disposed on each ring roller 241 in this embodiment. Copper sleeve 244 may be removably secured to axle assembly 23, for example, copper sleeve 244 may be removably secured to first axle 231 or second axle 232 with screws, and when copper sleeve 244 becomes worn, copper sleeve 244 may be removed and replaced with a new copper sleeve 244.

As shown in fig. 1 to 12, a opencast coal mine mining apparatus according to an embodiment of the present invention includes a belt conveyor (not shown), a rail deck 1, a pusher carriage 2, and a drive assembly 3. The pushing trolley 2 is arranged on the track platform 1 and can move along the track platform 1, one end of the pushing trolley 2 is connected with the belt conveyor, the other end of the pushing trolley 2 is connected with the driving assembly 3, and the driving assembly 3 is used for driving the pushing trolley 2 to move back and forth along the track platform 1.

Specifically, pass 2 direction of car and slide the assembly on track platform 1 in this embodiment, pass the one end and the band conveyer of car 2 and be connected, pass the other end and the drive assembly 3 of car 2 and be connected, drive assembly 3 can drive and pass 2 reciprocating motion of car to drive band conveyer reciprocating motion.

As shown in fig. 5 to 12, pusher wagon 2 of the present embodiment includes a wagon body 22, an axle assembly 23, a roller assembly 24, and an oil supply assembly 27. In the present embodiment, vehicle body 22 has a first direction (front-rear direction as shown in fig. 5) and a second direction (left-right direction as shown in fig. 5).

Axle assembly 23 is provided on vehicle body 22, and both ends of axle assembly 23 extend to the outside of vehicle body 22, are equipped with the first passageway that runs through axle assembly 23 in axle assembly 23. Specifically, in the present embodiment, axle assembly 23 is fixed to vehicle body 22, axle assembly 23 is arranged to extend along the second direction of vehicle body 22, and both ends of axle assembly 23 extend to the left and right sides of vehicle body 22. In the present embodiment, a first passage is provided in axle assembly 23, and the first passage extends along the extending direction of axle assembly 23 and penetrates axle assembly 23.

The roller assembly 24 is arranged at the end part of the axle assembly 23, the roller assembly 24 is internally provided with an accommodating cavity 26 for inserting the end part of the axle assembly 23, the roller assembly 24 is rotatably connected with the axle assembly 23, the accommodating cavity 26 is communicated with the first passage, and the accommodating cavity 26 is used for storing lubricating oil. Specifically, the both ends of axle subassembly 23 all are equipped with wheel components 24 in this embodiment, wheel components 24 rotary seal connects the tip at axle subassembly 23, it has the accent towards automobile body 22 to hold chamber 26 in this embodiment, the accent department that holds chamber 26 is connected with axle subassembly 23 rotary seal, be equipped with in wheel components 24 and supply axle subassembly 23 male chamber 26 that holds, hold chamber 26 and first passageway intercommunication, the lubricating oil that flows out from first passageway can be stored in holding chamber 26, play the lubricated effect of extension.

The oil supply unit 27 is used to supply the lubricating oil into the first passage. Specifically, oil feeding unit 27 communicates with a first passage of axle unit 23, and oil feeding unit 27 is capable of supplying lubricating oil into the first passage and serving to replenish lubricating oil in housing chamber 26.

A opencut coal mine mining apparatus according to one specific example of the invention is described below with reference to fig. 1 to 12.

The opencast coal mine mining equipment according to an embodiment of the present invention includes a belt conveyor (not shown), a track platform 1, a pusher carriage 2, and a drive assembly 3.

A track cavity 13 is arranged in the track platform 1, the track cavity 13 extends along the front-back direction, and as shown in fig. 4, the cross section of the track cavity 13 is rectangular. In this embodiment, two first rails 11 are disposed at the bottom of the rail cavity 13, the two first rails 11 are disposed on the inner bottom surface of the rail cavity 13, and the two first rails 11 are disposed at two bottom corners of the rail cavity 13 respectively and extend along the front-back direction. In this embodiment, two second rails 12 are further disposed at the top of the rail cavity 13, the cross sections of the two second rails 12 are both L-shaped, and the two second rails 12 are disposed at two top corners of the rail cavity 13 and extend along the front-back direction. In the present embodiment, the two first rails 11 and the two second rails 12 are each arranged in mirror symmetry.

In this embodiment, the pusher carriage 2 is installed in the track cavity 13, and after the pusher carriage 2 is installed, two ends of each roller assembly 24 on two sides of the pusher carriage 2 are respectively clamped between the corresponding first track 11 and the second track 12. The structure of the pushing cart 2 in this embodiment may be the same as that in the above embodiments, and will not be described herein again.

In this embodiment, the driving assembly 3 is a hydraulic telescopic cylinder, as shown in fig. 1 and 2, one end of the driving assembly 3 is hinged to the track platform 1, and the other end of the driving assembly 3 is hinged to the pushing cart 2.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.