CN111891152B

CN111891152B - Auxiliary tractor

Info

Publication number: CN111891152B
Application number: CN202010813437.2A
Authority: CN
Inventors: 梁义江; 许延晖; 门志顺; 刘艳; 贾立辉; 王延军; 郝韶嵩
Original assignee: Hebei Coal Science Research Institute Co ltd
Current assignee: Hebei Coal Science Research Institute Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-08-17
Anticipated expiration: 2040-08-13
Also published as: CN111891152A

Abstract

The invention provides an auxiliary tractor, which belongs to the technical field of coal mining conveying devices and comprises a tractor body, a traction arm and a pushing mechanism, wherein the tractor body is connected with the tail end of an end-to-end mine car; the traction arm is connected with the vehicle body, a slide way and a hook are arranged on the traction arm, a cushion block is arranged in the slide way in a sliding manner, the cushion block is opposite to the hook, and the hook is used for hooking a traction rope; the pushing mechanism is connected with the traction arm and used for pushing the cushion block to move along the slide way to press or release the traction rope on the hook. The auxiliary tractor provided by the invention can avoid the collision of the mine car positioned at the rear side with the mine car positioned at the front side, and improves the transportation safety.

Description

Auxiliary tractor

Technical Field

The invention belongs to the technical field of coal mining conveying devices, and particularly relates to an auxiliary tractor.

Background

When mining is carried out, a mine car moves along a track under the driving of a tractor, the tractor is connected with a traction rope, and the traction rope moves to drive the tractor to move. In order to improve the transportation efficiency, a plurality of mine cars are connected end to end through connecting chains, and the mine car positioned at the end part is connected with a tractor. When the mine car meets the downhill road condition, the mine car connected through the connecting chain can collide, and certain risk is achieved.

Disclosure of Invention

The invention aims to provide an auxiliary tractor, which aims to solve the problem that when a downhill road condition is met, a mine car connected through a connecting chain collides, and has certain risk.

In order to achieve the purpose, the invention adopts the technical scheme that: the auxiliary tractor comprises a tractor body, a traction arm and a pushing mechanism, wherein the tractor body is connected with the tail end of an end-to-end mine car; the traction arm is connected with the vehicle body, a slide way and a hook are arranged on the traction arm, a cushion block is arranged in the slide way in a sliding manner, the cushion block is opposite to the hook, and the hook is used for hooking a traction rope; the pushing mechanism is connected with the traction arm and used for pushing the cushion block to move along the slide way to press or release the traction rope on the hook.

As another embodiment of the application, the ejection mechanism comprises a driving part, a lever and a spring, wherein the driving part is arranged on the traction arm; the lever is rotatably arranged in the slideway on the traction arm, the upper end face of the lever is contacted with the driving part, the lower end face of the lever is contacted with the cushion block, and the lower end face of the lever is a cambered surface; one end of the spring is connected with the traction arm, the other end of the spring is connected with the cushion block, the spring is used for enabling the lever to be in contact with the driving portion and the cushion block to be in contact with the lever all the time, and the driving portion drives the cushion block to move through driving the lever to rotate.

As another embodiment of the application, the driving part comprises a shaft sleeve and a screw rod, the shaft sleeve is connected with the traction arm and can rotate relative to the traction arm, and a threaded hole is formed in the shaft sleeve; one end of the screw rod is provided with a push block, the screw rod is in threaded connection with the threaded hole, the end provided with the push block extends into the slide way, and the push block is in contact with the lever.

In another embodiment of the present application, a base plate is disposed on the draft arm, the base plate has a through hole, and a shaft sleeve is rotatably disposed in the through hole.

As another embodiment of the application, the side wall of the shaft sleeve is provided with a first connecting threaded hole, the shaft sleeve is sleeved with a fixing sleeve, the side wall of the fixing sleeve is provided with a second connecting threaded hole, the second connecting threaded hole is internally provided with a connecting bolt, the connecting bolt is in threaded connection with the first connecting threaded hole at the same time, and the fixing sleeve is provided with a handle.

As another embodiment of the application, the traction arm is rotatably connected with the vehicle body and can be fixed at a specific position, and a rotating shaft around which the traction arm rotates is parallel to the length direction of the cushion block.

As another embodiment of the application, rotating shafts are arranged on two sides of the traction arm, positioning holes are formed in the rotating shafts, the axes of the positioning holes in the two rotating shafts form an included angle, two shaft seats are correspondingly arranged on the vehicle body, fixing holes are formed in the shaft seats, and the traction arm is fixed at a specific position by inserting positioning pins into the fixing holes and the positioning holes which are opposite.

As another embodiment of the application, guide plates are arranged on the upper portion of the traction arm and on two sides of the hook, two side faces of each guide plate are inclined planes, and the guide plates are used for opening the rope pressing wheel for guiding the traction rope, so that the whole traction arm smoothly passes through the rope pressing wheel.

As another embodiment of this application, be equipped with the installation cavity on the automobile body, installation cavity upper end and lower extreme open, and the draft arm is located the installation cavity to stretch into the automobile body below by the installation cavity.

As another embodiment of the application, the cushion block is a copper block.

The auxiliary tractor provided by the invention has the beneficial effects that: compared with the prior art, the auxiliary tractor has the advantages that the tractor body is connected with the tail ends of the head-tail mine cars; the vehicle body is provided with a traction arm, the traction arm is provided with a slideway and a hook, and a cushion block capable of sliding and moving along the slideway is arranged in the slideway. The haulage rope is hooked in the couple during use, and ejection mechanism ejection cushion moves along the slide and compresses tightly the haulage rope on the couple to when the downhill path, the haulage rope drives tractor, auxiliary tractor and mine car and moves, because auxiliary tractor links to each other with the haulage rope at the mine car rear, and the mine car that is located the rear side can not move the mine car that the collision is located the front side forward, and is safer.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an auxiliary tractor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pushing mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a pushing mechanism with a reinforcing plate removed according to an embodiment of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of an alternate angle of the ejector mechanism with the reinforcing plate removed according to the present invention;

FIG. 6 is a schematic structural diagram of a tow arm according to an embodiment of the present invention;

fig. 7 is a force analysis diagram of the structure of the pushing mechanism according to the embodiment of the present invention;

FIG. 8 is a bottom view of a trailing arm provided in accordance with an embodiment of the present invention;

fig. 9 is a layout view of a traction rope and a rope pressing wheel according to an embodiment of the invention.

In the figure: 1. a vehicle body; 2. a mounting cavity; 3. a hauling rope; 4. a reinforcing plate; 5. a connecting plate; 6. a traction arm; 7. hooking; 8. a rope pressing wheel; 9. a guide plate; 10. a shaft seat; 11. a screw; 12. a handle; 13. fixing a sleeve; 14. positioning pins; 15. a rotating shaft; 16. a connecting bolt; 17. a push block; 18. a lever; 19. cushion blocks; 20. a shaft sleeve; 21. a spring; 22. a substrate; 23. and (4) a groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3 together, the auxiliary towing vehicle of the present invention will now be described. The auxiliary tractor comprises a tractor body 1, a traction arm 6 and a pushing mechanism, wherein the tractor body 1 is connected with the tail end of a head-tail mine car; the traction arm 6 is connected with the vehicle body 1, a slideway and a hook 7 are arranged on the traction arm 6, a cushion block 19 is arranged in the slideway in a sliding manner, the cushion block 19 is opposite to the hook 7, and the hook 7 is used for hooking the traction rope 3; the pushing mechanism is connected with the traction arm 6 and used for pushing the cushion block 19 to move along the slideway to press or release the traction rope 3 on the hook 7.

Compared with the prior art, the auxiliary tractor provided by the invention has the advantages that the tractor body 1 is connected with the tail end of the head-tail mine car; the vehicle body 1 is provided with a traction arm 6, the traction arm 6 is provided with a slideway and a hook 7, and the slideway is internally provided with a cushion block 19 which can move along the slideway. During the use couple 7 hooks haulage rope 3, and ejection mechanism ejection cushion 19 moves along the slide and compresses tightly haulage rope 3 on couple 7 to when the downhill path, haulage rope 3 drives tractor, auxiliary tractor and mine car and removes, because auxiliary tractor links to each other with haulage rope 3 at the mine car rear, and the mine car that is located the rear side can not move the mine car that the collision is located the front side forward, and is safer.

As a specific embodiment of the auxiliary tractor provided by the present invention, please refer to fig. 3 to 5, the pushing mechanism includes a driving portion, a lever 18, and a spring 21, the driving portion is disposed on the towing arm 6; the lever 18 is rotatably arranged in a slideway on the traction arm 6, the upper end surface of the lever 18 is contacted with the driving part, the lower end surface of the lever 18 is contacted with the cushion block 19, and the lower end surface of the lever 18 is a cambered surface; one end of a spring 21 is connected with the traction arm 6, the other end of the spring 21 is connected with a cushion block 19, the spring 21 is used for enabling the lever 18 to be always in contact with a driving part, and the cushion block 19 is always in contact with the lever 18, and the driving part drives the cushion block 19 to move through the rotation of the driving lever 18.

In this embodiment, the driving mechanism drives the lever 18 to rotate, so that the arc-shaped protruding portion of the lever 18 gradually contacts with the cushion block 19 in the rotating process, and pushes the cushion block 19 to move downwards to press the traction rope 3 on the hook 7. When the cushion block 19 presses the traction rope 3, the spring 21 is stretched; when the traction rope 3 needs to be released, the spring 21 drives the sliding block to move upwards for resetting, and pushes the lever 18 to rotate, so that the lever 18 is always in contact with the driving part.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3 to 7, the driving portion includes a shaft sleeve 20 and a screw 11, the shaft sleeve 20 is connected to the traction arm 6 and can rotate relative to the traction arm 6, and a threaded hole is formed on the shaft sleeve 20; one end of the screw rod 11 is provided with a push block 17, the screw rod 11 is in threaded connection with the threaded hole, one end provided with the push block 17 extends into the slide way, and the push block 17 is in contact with the lever 18.

In this embodiment, the draft arm 6 is provided with a groove 23, the spring 21 is disposed in the groove 23, one end of the spring 21 is connected to the pad 19, and the other end is connected to the draft arm 6. The shaft sleeve 20 is rotated, the shaft sleeve 20 rotates to drive the screw rod 11 to move up and down, when the screw rod 11 moves downwards, the pushing block 17 pushes the lever 18 to rotate, and the arc-shaped surface pushes the cushion block 19 to move. When the traction rope 3 needs to be released, the rotating shaft sleeve 20 drives the screw rod 11 to move upwards, and the lever 18 is pushed to rotate under the action of the elastic force of the spring 21, so that the lever 18 is always in contact with the push block 17. In this embodiment, the lever 18 and the push block 17 are covered by the reinforcing plate 4 to avoid exposure.

In the present embodiment, as shown in fig. 7, when the pad 19 presses the traction rope 3, the push block 17 generates a downward pressure of F2 on the lever 18, and the lever 18 generates a pressure of F1 on the pad 19 through force transmission, and the forces act on each other, so that the pad 19 generates a reaction force as large as F1 on the lever 18. Because the moment arm of the F2 pressure is larger than that of the counter force of the F1, by adopting the structure, the pressure of the cushion block 19 pressing the traction rope 3 is increased, so that the pressing is firmer.

Meanwhile, as shown in fig. 7, the pushing block 17 applies pressure to the lever 18F2, the lever 18 applies counter force to the pushing block 17, and the counter force of F2 applies torque to the screw rod 11, so that the threaded hole of the shaft sleeve 20 is pressed on one side of the screw rod 11, self-locking is achieved to a certain degree, and the pressing is more stable.

Referring to fig. 3 to 5, as a specific implementation manner of the embodiment of the present invention, a base plate 22 is disposed on the draft arm 6, the base plate 22 is provided with a through hole, and a shaft sleeve 20 is rotatably disposed in the through hole.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3 to 5, a first connection threaded hole is formed on a side wall of a shaft sleeve 20, a fixing sleeve 13 is sleeved outside the shaft sleeve 20, a second connection threaded hole is formed on a side wall of the fixing sleeve 13, a connection bolt 16 is arranged in the second connection threaded hole, the connection bolt 16 is simultaneously in threaded connection with the first connection threaded hole, and a handle 12 is arranged on the fixing sleeve 13.

In this embodiment, set up fixed cover 13 outside axle sleeve 20, then link to each other axle sleeve 20 with fixed cover 13, axle sleeve 20 and fixed cover 13 synchronous rotation set up handle 12 on fixed cover 13 to handle 12 is farther apart from the axis of rotation of axle sleeve 20, makes operating personnel more laborsaving when the operation.

Referring to fig. 1 to 5, as a specific implementation manner of the embodiment of the present invention, the towing arm 6 is rotatably connected to the vehicle body 1 and can be fixed at a specific position, and the rotating shaft 15 around which the towing arm 6 rotates is parallel to the length direction of the pad 19.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, two sides of the towing arm 6 are respectively provided with a rotating shaft 15, the rotating shaft 15 is provided with a positioning hole, axes of the positioning holes on the two rotating shafts 15 form an included angle, the vehicle body 1 is correspondingly provided with two shaft seats 10, the shaft seats 10 are provided with fixing holes, and the towing arm 6 is fixed at a specific position by inserting a positioning pin 14 into the fixing hole and the positioning hole which are opposite.

In this embodiment, the hauling cable 3 may be located under the track because the hauling cable 3 has flexibility and the road conditions in the mine are often fluctuated. When the auxiliary tractor needs to pass through the road section, after the traction rope 3 is hung on the hook 7, the position of the traction rope 3 can be improved by rotating the traction arm 6, so that the subsequent auxiliary tractor can conveniently pass through. In this embodiment, the axes of the positioning holes on the two rotating shafts 15 are perpendicular to each other, and when one of the positioning holes is aligned with the fixing hole of the shaft seat 10 and the positioning pin 14 is inserted, the traction arm 6 is in a vertical state; when the position needs to be changed, the positioning pin 14 is pulled out, the traction arm 6 is rotated, the positioning hole on the other rotating shaft 15 is opposite to the corresponding fixing hole of the shaft seat 10, and the positioning pin 14 is inserted, so that the traction rope 3 is lifted, and the traction arm 6 is in a horizontal state.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5, fig. 6, fig. 8 and fig. 9, guide plates 9 are respectively disposed on the traction arm 6 and both sides of the hook 7, both sides of the guide plates 9 are inclined surfaces, and the guide plates 9 are used for opening the rope pressing wheel 8 guiding the traction rope 3, so that the whole traction arm 6 smoothly passes through the rope pressing wheel 8.

In this embodiment, because the path is too long, two rope pressing wheels 8 are arranged at regular intervals, the rope pressing wheels 8 are made of elastic materials, and the traction rope 3 passes through the two rope pressing wheels 8. Because the auxiliary traction car and the haulage rope 3 are fixed the back, move along with haulage rope 3, when moving to pressure rope wheel 8 department, deflector 9 inserts two pressure rope wheel 8 earlier between, opens two pressure rope wheels 8 through the extrusion to whole draft arm 6 can pass through smoothly.

Referring to fig. 1, a vehicle body 1 is provided with an installation cavity 2, an upper end and a lower end of the installation cavity 2 are open, and a draft arm 6 is disposed in the installation cavity 2 and extends from the installation cavity 2 to a position below the vehicle body 1.

In this embodiment, a connecting plate 5 is arranged in the mounting cavity, and the shaft seat 10 is connected with the connecting plate 5.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, in which the pad 19 is a copper block.

In the embodiment, the traction rope 3 is a steel wire rope, and the hardness of the copper block is lower than that of the steel wire rope, so that the steel wire rope can be effectively protected from being crushed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Auxiliary tractor, its characterized in that includes:

the vehicle body is connected with the tail end of the head-tail connected mine car;

the traction arm is connected with the vehicle body, a slide way and a hook are arranged on the traction arm, a cushion block is arranged in the slide way in a sliding mode, the cushion block is opposite to the hook, and the hook is used for hooking a traction rope; and

the pushing mechanism is connected with the traction arm and used for pushing the cushion block to move along the slide way to press or release the traction rope on the hook;

the ejection mechanism includes:

the driving part is arranged on the traction arm;

the lever is rotatably arranged in the slide way on the traction arm, the upper end face of the lever is in contact with the driving part, the lower end face of the lever is in contact with the cushion block, and the lower end face of the lever is an arc surface;

and one end of the spring is connected with the traction arm, the other end of the spring is connected with the cushion block, the spring is used for enabling the lever to be always in contact with the driving part and the cushion block, and the driving part drives the lever to rotate to drive the cushion block to move.

2. The tractor assist of claim 1, wherein the drive portion comprises:

the shaft sleeve is connected with the traction arm and can rotate relative to the traction arm, and a threaded hole is formed in the shaft sleeve;

and one end of the screw rod is provided with a push block, the screw rod is in threaded connection with the threaded hole, one end of the push block extends into the slide way, and the push block is in contact with the lever.

3. The auxiliary tractor according to claim 2, wherein the towing arm is provided with a base plate, the base plate is provided with a through hole, and the shaft sleeve is rotatably provided in the through hole.

4. The auxiliary tractor as defined in claim 3 wherein, the side wall of the axle sleeve is provided with a first connecting threaded hole, the axle sleeve is sleeved with a fixing sleeve, the side wall of the fixing sleeve is provided with a second connecting threaded hole, the second connecting threaded hole is provided with a connecting bolt, the connecting bolt is simultaneously in threaded connection with the first connecting threaded hole, and the fixing sleeve is provided with a handle.

5. The tractor assist of claim 1, wherein the draft arm is pivotally connected to the body and securable in a position, the draft arm pivoting about a pivot axis parallel to the length of the pad.

6. The auxiliary tractor as claimed in claim 5, wherein the towing arm is provided with a rotating shaft on both sides, the rotating shaft is provided with a positioning hole, the axes of the positioning holes on the two rotating shafts are arranged at an included angle, the vehicle body is correspondingly provided with two shaft seats, the shaft seats are provided with fixing holes, and the towing arm is fixed at a specific position by inserting a positioning pin into the opposite fixing hole and the positioning hole.

7. The tractor assist of claim 1, wherein the draft arm and the hitch are provided with guide plates on both sides thereof, the guide plates having inclined surfaces on both sides thereof, the guide plates being adapted to open a pinch roller for guiding the draft rope so that the entire draft arm can pass the pinch roller smoothly.

8. The auxiliary tractor according to claim 1, wherein the vehicle body is provided with a mounting cavity, the mounting cavity is open at the upper end and the lower end, and the towing arm is arranged in the mounting cavity and extends from the mounting cavity to the lower part of the vehicle body.

9. The tractor assist of claim 1, wherein the pad is a copper pad.