阅读说明：本技术 一种高效采煤机 (High-efficiency coal mining machine ) 是由 王德春 于 2020-07-16 设计创作，主要内容包括：本发明涉及采煤设备技术领域,具体公开了一种高效采煤机,包括采煤机本体和支撑采煤机本体的导向滑靴,导向滑靴包括滑靴本体和可拆卸连接在滑靴本体上的耐磨件,耐磨件与销排相贴,耐磨件上设有检测孔,检测孔的一端连接有气压开关,气压开关与检测孔能够形成密闭的空间,密闭空间内的气压高于大气压,气压开关与采煤机上的控制器电连接,气压开关用于在检测到气压低于设定值时向控制器发出报警信号。本方案通过气压开关与检测孔的配合实现耐磨件在磨损严重而产生裂纹后的报警,避免了导向滑靴断裂后存在的更换麻烦的问题。(The invention relates to the technical field of coal mining equipment, and particularly discloses a high-efficiency coal mining machine which comprises a coal mining machine body and a guide sliding shoe for supporting the coal mining machine body, wherein the guide sliding shoe comprises a sliding shoe body and a wear-resistant piece detachably connected to the sliding shoe body, the wear-resistant piece is attached to a pin row, a detection hole is formed in the wear-resistant piece, one end of the detection hole is connected with an air pressure switch, the air pressure switch and the detection hole can form a closed space, the air pressure in the closed space is higher than the atmospheric pressure, the air pressure switch is electrically connected with a controller on the coal mining machine, and the air pressure switch is used for sending an alarm signal to the controller when the air. The scheme realizes the alarm of the abrasion-resistant part after cracks are generated due to serious abrasion through the cooperation of the air pressure switch and the detection hole, and avoids the problem of troublesome replacement after the guide sliding shoe is broken.)

1. The utility model provides a high-efficient coal-winning machine, includes the direction piston shoes of coal-winning machine body and support coal-winning machine body, its characterized in that: the guide sliding shoe comprises a sliding shoe body and a wear-resistant part detachably connected to the sliding shoe body, the wear-resistant part is attached to the pin row, a detection hole is formed in the wear-resistant part, one end of the detection hole is connected with an air pressure switch, the air pressure switch and the detection hole can form a closed space, air pressure in the closed space is higher than atmospheric pressure, the air pressure switch is electrically connected with a controller on the coal mining machine, and the air pressure switch is used for sending an alarm signal to the controller when detecting that the air pressure is lower than a set value.

2. The high-efficiency shearer according to claim 1, wherein: the wear-resisting piece is including dismantling first wear-resisting piece and the wear-resisting piece of second of connection on the piston shoes body, and first wear-resisting piece and the wear-resisting piece of second enclose the round pin row and close, and first wear-resisting piece can reciprocate along the piston shoes body, and the wear-resisting piece of second can be along piston shoes body horizontal migration, all is equipped with the inspection hole on first wear-resisting piece and the wear-resisting piece of second, and the atmospheric pressure switch is all connected to the inspection hole.

3. The high-efficiency shearer according to claim 2, wherein: wear-resisting piece one is gone up fixed connection and is had end antifriction plate and left antifriction plate, and fixedly connected with top antifriction plate and right antifriction plate on the wear-resisting piece of second, and end antifriction plate is located top antifriction plate below, and left antifriction plate and right antifriction plate are relative, and end antifriction plate, left antifriction plate, top antifriction plate and right antifriction plate enclose the synthetic guide way of pasting mutually with the round pin row.

4. The high-efficiency shearer according to claim 2, wherein: and the first wear-resistant block and the second wear-resistant block are both provided with slide blocks, and the sliding shoe body is provided with sliding chutes which are in concave-convex fit with the slide blocks.

5. The high-efficiency shearer according to claim 4, wherein: the sliding groove is a dovetail groove, the cross section of the sliding block is in a dovetail shape, the sliding block on the first wear-resistant block is obliquely arranged, and the sliding block on the second wear-resistant block is horizontally arranged.

6. The high-efficiency shearer according to claim 5, wherein: the number of the sliding blocks on the second wear-resistant block is several, the sliding blocks are sequentially arranged, and the heights of the sliding blocks are sequentially increased from the middle part to the edge of the sliding shoe body.

7. The high-efficiency shearer according to claim 6, wherein: the bottom of the second wear-resistant block is vertically and slidably connected with a connecting plate, the bottom of the connecting plate is fixedly connected with universal balls, and an elastic part is connected between the connecting plate and the second wear-resistant block.

8. The high-efficiency shearer according to claim 1, wherein: the traveling box of the coal mining machine is fixedly connected with a spray head, the spray head is connected with a high-pressure air gun, and gas sprayed by the spray head is aligned to the rack on the pin row.

9. The high-efficiency shearer loader of claim 8, wherein: the piston shoe comprises a piston shoe body, and is characterized in that a push plate is detachably connected to the piston shoe body, the bottom of the push plate is attached to a pin row, the push plate and the pin row form an included angle, and the push plate is used for pushing coal slag on the pin row into a coal conveying chain plate of a conveyor.

10. The high-efficiency shearer loader of claim 9, wherein: the sliding shoe is characterized in that a supporting plate is fixedly connected to the sliding shoe body, a pushing plate is fixedly connected to the supporting plate, and the supporting plate and the pushing plate cover the air pressure switch.

Technical Field

The invention relates to the technical field of coal mining equipment, in particular to a high-efficiency coal mining machine.

Background

The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, and if a fault occurs, the whole coal mining working face is interrupted, so that huge economic loss is caused. With the development of the coal industry, the functions of the coal mining machine are more and more, the structure and the composition of the coal mining machine are more and more complex, and the reasons for the faults are also complex.

The coal mining machine generally comprises a traction part, a cutting part, a walking box, a rocker arm, an electric control part and the like, wherein a guide sliding shoe and a support sliding shoe are arranged at the bottom of the walking box, the traction part mainly comprises a traction motor and a traction transmission system, the main working principle is that power input by the traction motor is transmitted to a driving wheel and a walking wheel of the walking box through the traction transmission system, the walking wheel is meshed with a pin rail of the conveyor to realize traction of the coal mining machine, the walking wheel is rotatably connected to the guide sliding shoe, and the guide sliding shoe is supported on a pin row of the conveyor.

When the coal mining machine works, the following problems often exist:

firstly, when the coal mining machine cuts coal, a roller of the coal mining machine is subjected to the thrust of a coal wall, so that the machine body of the coal mining machine is twisted in the horizontal direction, at the moment, a guide groove on a guide sliding shoe on the coal mining machine is seriously rubbed with a pin row, so that the guide sliding shoe is abraded or broken, and in the serious moment, the coal mining machine can lose guidance due to the breakage of the guide sliding shoe and then break away from a conveyor, so that the coal mining work of the coal mining machine is seriously influenced, and the danger is brought to the coal mining work.

Secondly, the size of the coal mining machine is large, the working environment is severe, the guide sliding shoes serving as supporting and guiding functions of the coal mining machine often need to be replaced after being worn, the guide sliding shoes are provided with walking wheels, when the guide sliding shoes are replaced, the walking wheels need to be disassembled, and the walking wheels are simultaneously arranged on the walking box, so that the guide sliding shoes are replaced too long and time is consumed, and the production efficiency of the coal mining machine is reduced.

Thirdly, during coal mining, most of the coal blocks can fall into a conveying chain of the conveyor to be conveyed away, but part of the coal blocks still fall to other parts in the conveyor, for example, the coal falls onto a pin row and a rack of the conveyor, and a guide sliding shoe is supported on the pin row, so that sundries between the guide sliding shoe and the pin row are increased, and the abrasion of the guide sliding shoe is accelerated; the coal blocks falling onto the toothed rail can be rolled by the travelling wheels and are left between the toothed rail and the travelling wheels, so that the abrasion of the travelling wheels and the toothed rail is accelerated.

Disclosure of Invention

The invention aims to provide an efficient coal mining machine to solve the problem that in the prior art, a guide sliding shoe of the coal mining machine is troublesome to replace after being broken.

In order to achieve the above object, the basic scheme of the invention is as follows:

the utility model provides a high-efficient coal-winning machine, including the direction piston shoe of coal-winning machine body and support coal-winning machine body, the direction piston shoe includes the piston shoe body and can dismantle the wearing parts of connection on the piston shoe body, wearing parts pastes with the round pin row mutually, be equipped with the inspection hole on the wearing parts, the one end of inspection hole is connected with air pressure switch, air pressure switch and inspection hole can form inclosed space, the atmospheric pressure in the inclosed space is higher than the atmospheric pressure, air pressure switch is connected with the controller electricity on the coal-winning machine, air pressure switch is used for sending alarm signal to the controller when detecting atmospheric pressure and being less than the setting value.

Compare the beneficial effect in prior art:

when the scheme is adopted, when the wear-resistant part is not worn, the connection between the air pressure switch and the detection hole on the wear-resistant part is in a closed state, the air pressure switch is in a normally open state (namely, a disconnected state), when the wear-resistant part of the guide sliding shoe is worn, the wear-resistant part generates cracks along with the continuous increase of the wear, the generated cracks extend to the detection hole, further, the closed space formed by the detection hole and the air pressure switch is damaged, the original pressure in the closed space leaks, the pressure switch detects the reduction of the pressure, when the pressure is reduced to a set value, the air pressure switch is switched on, the air pressure switch sends an alarm signal when the pressure is lower than the set value to the controller, a worker judges that the wear-resistant part needs to be replaced according to the alarm signal, the whole process does not need to observe the wear condition of the wear-resistant part manually at any time, and the wear thickness of the wear-resistant part does not need to be detected regularly; because of the gas pressure department equals in the inspection hole, as long as the crackle of a certain department reachs the inspection hole, it has been said that serious wearing and tearing have appeared in certain position on the wearing parts, if handle in time not, then the position of serious wearing and tearing will wear fast, lead to whole wearing parts fracture when serious, the coal-winning machine breaks away from the conveyer, and this scheme will in time send alarm signal when local serious wearing and tearing appear in the wearing parts, the emergence of this kind of condition can be avoided after the workman in time changes the wearing parts, the production security of coal-winning machine has been improved.

Because the worker can know in time that the guide sliding shoe needs to be replaced, the condition that the coal mining machine is separated from the conveyor is avoided, the maintenance time caused by the fault of the coal mining machine is further reduced, the utilization rate of the coal mining machine is relatively improved, and the efficient coal mining of the coal mining machine is facilitated.

In addition, in the scheme, when the wear-resistant part is damaged, the wear-resistant part is detachably connected to the sliding shoe body, and the moving wheel connected to the sliding shoe body is not required to be detached when the wear-resistant part is replaced, so that the maintenance time and the maintenance difficulty of the guide sliding shoe are reduced, and the high-efficiency coal mining of a coal mining machine is further facilitated; and the guide sliding shoes do not need to be integrally replaced, so that the replacement cost is low.

Further, wear-resisting piece is including dismantling first wear-resisting piece and the wear-resisting piece of second of connection on the piston shoes body, and first wear-resisting piece and the wear-resisting piece of second enclose the round pin row and close, and first wear-resisting piece can reciprocate along the piston shoes body, and the wear-resisting piece of second can be along piston shoes body horizontal migration, all is equipped with the inspection hole on first wear-resisting piece and the wear-resisting piece of second, and the atmospheric pressure switch is all connected to the inspection hole.

Has the advantages that: the first wear-resistant block and the second wear-resistant block are provided with detection holes and air pressure switches, so that the first wear-resistant block and the second wear-resistant block can conveniently detect the wear conditions respectively; the first wear-resistant block can move up and down along the sliding shoe body, so that the space between the bottom of the first wear-resistant block and the top of the conveyor can be utilized when the first wear-resistant block is disassembled and installed, the first wear-resistant block can be directly assembled and disassembled without disassembling the pin row and the travelling wheels on the sliding shoe body, and the disassembly and the assembly are simple, and labor and time are saved; the second wear-resisting block can be detached from the sliding shoe body along the horizontal direction, so that the pin row and the travelling wheel on the sliding shoe body are not required to be detached when the second wear-resisting block is detached, and the second wear-resisting block is also simple to detach; the first wear-resisting block and the second wear-resisting block are assembled and disassembled in a mode which is beneficial to prolonging the effective working time of the coal mining machine, and the coal mining machine can mine more coal.

Furthermore, wear-resisting piece one is gone up fixed connection and is had end antifriction plate and left antifriction plate, and fixed connection has top antifriction plate and right antifriction plate on the wear-resisting piece of second, and end antifriction plate is located top antifriction plate below, and left antifriction plate and right antifriction plate are relative, and end antifriction plate, left antifriction plate, top antifriction plate and right antifriction plate enclose synthetic guide way of pasting mutually with the round pin row.

Has the advantages that: enclose synthetic guide way through end antifriction plate, left antifriction plate, top antifriction plate and right antifriction plate and both formed pasting mutually of wearing parts and round pin row, increase the wearability of wearing parts again, be favorable to the extension of wearing parts life-span.

Further, the first wear-resistant block and the second wear-resistant block are both provided with sliding blocks, and sliding chutes which are in concave-convex fit with the sliding blocks are formed in the sliding shoe body.

Has the advantages that: the connecting strength of the first wear-resistant block, the second wear-resistant block and the sliding shoe body is enhanced by the aid of the sliding grooves and the sliding blocks which are matched in a concave-convex mode.

Furthermore, the sliding groove is a dovetail groove, the cross section of the sliding block is in a dovetail shape, the sliding block on the first wear-resistant block is obliquely arranged, and the sliding block on the second wear-resistant block is horizontally arranged.

Has the advantages that: the spout is the dovetail for the cooperation of slider and spout not only plays sliding guide's effect, also makes the area of contact increase of first wear-resisting piece, the wear-resisting piece of second and piston shoes body, is favorable to strengthening the joint strength of first wear-resisting piece, the wear-resisting piece of second and piston shoes body.

In addition, the slider slope on the first wear-resisting piece sets up, the dismouting of first wear-resisting piece of can being convenient for, and the cooperation that can utilize the slider of slope on the first wear-resisting piece again and spout makes first wear-resisting piece atress more even when moving along with the piston shoes body, has alleviated the coal-winning machine and when moving along the conveyer, the big problem of shearing force between piston shoes body and the first wear-resisting piece is favorable to prolonging the life of first wear-resisting piece.

Furthermore, the number of the sliding blocks on the second wear-resistant block is several, the sliding blocks are sequentially arranged, and the heights of the sliding blocks are sequentially increased from the middle part to the edge of the sliding shoe body.

Has the advantages that: the sliding block with constantly changing height on the second wear-resistant block enables the sliding shoe body to move, so that the action points of the shearing force between the second wear-resistant block and the sliding shoe body are more dispersed, and the service life of the second wear-resistant block is prolonged.

Furthermore, the bottom of the second wear-resistant block is vertically and slidably connected with a connecting plate, the bottom of the connecting plate is fixedly connected with universal balls, and an elastic part is connected between the connecting plate and the second wear-resistant block.

Has the advantages that: when the coal mining machine runs on the conveyor, the universal ball is attached to the upper surface of the conveyor due to the existence of the elastic piece, the universal ball runs on the conveyor, when the coal mining machine is subjected to thrust from a coal wall, the coal mining machine generates horizontal torsional force, so that the stress of the guide sliding shoe is intensified and certain inclination is generated, at the moment, the elastic piece is compressed, the extrusion force between the universal ball and the conveyor is increased, the coal mining machine is supported by the extrusion force, the friction force between a second wear-resisting block on the guide sliding shoe and the pin row is favorably reduced, and the abrasion of the second wear-resisting block is reduced; in addition, rolling friction is formed between the universal ball and the conveyor, so that the conveyor and the universal ball are relatively less worn when the universal ball supports the coal mining machine body.

Further, a spray head is fixedly connected to the traveling box of the coal mining machine, the spray head is connected with a high-pressure air gun, and gas sprayed by the spray head is aligned to the rack rail on the pin row.

Has the advantages that: when the coal mining machine is used for mining coal, most coal blocks fall onto a coal conveying chain plate of the conveyor along with a roller on the coal mining machine, but the situation that part of the coal blocks directly fall onto the pin row still exists, high-pressure gas sprayed by a spray head connected with a high-pressure air gun can blow away massive coal blocks from the rack, the neatness of the rack on the pin row is guaranteed, the situation that coal cinder falls onto the rack and is crushed is avoided, the crushed cinder is prevented from adhering to the rack and the walking wheels, the situation that the walking wheels and the rack are abraded is reduced, the pin row is automatically cleaned, the service lives of the pin row and the walking wheels are prolonged, meanwhile, the pin row is cleaner and is also beneficial to reducing abrasion of the guide sliding shoes and the pin row, and the service life of the guide sliding shoes is prolonged.

Furthermore, the sliding shoe body is detachably connected with a push plate, the bottom of the push plate is attached to the pin row, the push plate and the pin row form an included angle, and the push plate is used for pushing coal cinder on the pin row into a coal conveying chain plate of the conveyor.

Has the advantages that: when the high-pressure gas sprayed by the spray heads blows away the coal slag from the pin rows and the tooth tracks on the pin rows, the push plates play a role in guiding the coal slag blown by the spray heads, so that the coal slag can fall onto a coal conveying chain plate of the conveyor after being blown; in addition, the existence of the push plate also pushes the fine coal cinder attached to the pin row to a coal conveying chain plate of the conveyor, so that sundries between the guide sliding shoes and the pin row are further reduced, and the abrasion between the guide sliding shoes and the pin row is favorably reduced; in addition, the push plate is positioned at the end part of the guide sliding shoe, so that the track of the guide sliding shoe about to slide is cleaned in advance, and the condition that the guide sliding shoe is damaged due to the fact that large coal cinder is directly impacted by the guide sliding shoe is avoided.

Furthermore, a supporting plate is fixedly connected to the sliding shoe body, a pushing plate is fixedly connected to the supporting plate, and the supporting plate and the pushing plate cover the air pressure switch; to form protection for the gas pressure switch.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is an isometric view of a guide shoe without a backing plate and push plate in an embodiment of the invention;

FIG. 4 is a right side view of FIG. 3;

FIG. 5 is a right side cross-sectional view of FIG. 3;

FIG. 6 is a front view of FIG. 3;

FIG. 7 is a bottom view of FIG. 3;

FIG. 8 is an isometric view of the first wear block of FIG. 3 not mounted on the slipper body;

FIG. 9 is an isometric view of the second wear block of FIG. 3 not mounted on the slipper body;

fig. 10 is a rear view of the second wear block of fig. 3;

FIG. 11 is an isometric view of a guide shoe belt support plate and push plate in accordance with an embodiment of the invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a coal mining machine body 100, a guide sliding shoe 200, a conveyor 300, a pin row 30, a rack 400, a walking box 500, a sliding shoe body 1, a first wear-resistant block 2, a second wear-resistant block 3, a bottom wear-resistant plate 4, a left wear-resistant plate 5, a top wear-resistant plate 6, a right wear-resistant plate 7, a sliding block 8, a sliding groove 9, a semicircular groove 10, a plug connector 11, a detection hole 12, a pneumatic switch 13, a connecting plate 14, a guide sleeve 15, a guide pillar 16, universal balls 17, a supporting plate 18, a push plate 19 and a rectangular spring 20.