Anti-sliding mine car

Abstract

The utility model relates to the field of mining equipment, in particular to an anti-sliding mine car, which is characterized in that the front end of a mine car body is connected with a traction rope, the bottom of the mine car body is fixedly provided with a mounting seat, and two opposite sides of the mounting seat are respectively and transversely provided with a first movable arm in a sliding manner; the ends, away from each other, of the two first movable arms are each provided with a first friction plate used for abutting against the outer side of the corresponding rail. Second movable arms are transversely and slidably mounted on the two opposite sides of the mounting base correspondingly. Second friction plates used for abutting against the inner sides of the corresponding rails are mounted at the ends, away from each other, of the two second movable arms correspondingly. When the mine car body is braked by the first friction plate and the second friction plate, the first friction plate and the second friction plate which are located on the same side have a clamping effect on the corresponding track, so that the mine car body and the track are relatively stably connected, and a rollover accident is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mining equipment, in particular to a mine car that can prevent runaway vehicles. Background Art

[0002] In the actual production process of the mine, the biggest hidden danger of inclined tunnel transportation is the runaway accident, that is, the vehicle runs away due to rope breakage, loosening of pins, misoperation, etc. during transportation in the inclined tunnel.

[0003] In the prior art, the utility model patent application number CN202320013547.X discloses a device for preventing a runaway car from breaking its rope when hoisting a series of inclined shaft cars. The device comprises a series car structure at the bottom of the car body structure, a rear resistance structure on the right side of the car body structure, and a front resistance structure on the left side of the car body structure. The rear resistance structure comprises a rear rod ring, an anti-skid rear rod is provided inside the through hole, a rear buffer sleeve is provided at the bottom end of the outer surface of the anti-skid rear rod, a rear block is installed on the bottom surface of the anti-skid rear rod, a buffer pad is installed on the right side of the rear block, and a rear anti-sliding block is installed on the bottom surface of the rear block. When a runaway car accident occurs due to a broken rope during hoisting of a series of inclined shaft cars, the anti-skid rear rod can be used to slide down, and the car can be braked by the rear block and the rear anti-sliding block.

[0004] However, the above-mentioned anti-runaway rope breaking device still has a defect when in use. When the rear block and the front block slide down and touch the sleepers, it is easy to cause the wheels of the mine car to deviate from the track and cause a rollover accident, which needs to be improved. Utility Model Content

[0005] The purpose of the present invention is to provide a mine car that can prevent rollover accidents and solve the defects mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A mine car that prevents runaway vehicles, comprising a mine car body, a traction rope connected to the front end of the mine car body, a laterally extending wheel axle fixedly installed on the bottom of the mine car body, wheel bodies rotatably installed at both ends of the wheel axle, the wheel bodies are matched with tracks, a mounting seat is fixedly installed on the bottom of the mine car body, first movable arms are respectively installed for laterally sliding on opposite sides of the mounting seat, and first friction plates for abutting the corresponding outer sides of the tracks are respectively installed at ends of the two first movable arms away from each other; second movable arms are also respectively installed for laterally sliding on opposite sides of the mounting seat, and second friction plates for abutting the corresponding inner sides of the tracks are respectively installed at ends of the two second movable arms away from each other; a linkage mechanism for driving the first movable arm and the second movable arm to move is provided in the mounting seat.

[0008] As a further improvement, the linkage mechanism includes a first mounting shaft rotatably mounted in the mounting seat, a first synchronous gear fixedly mounted on the first mounting shaft, a first rack meshed with the first synchronous gear on the first movable arm, and the two first racks are respectively meshed with opposite sides of the first synchronous gear; a second mounting shaft is also rotatably mounted in the mounting seat, a second synchronous gear fixedly mounted on the second mounting shaft, a second rack meshed with the second synchronous gear on the second movable arm, and the two second racks are respectively meshed with opposite sides of the second synchronous gear; a movable plate is slidably mounted on the mounting seat along the direction of travel parallel to the mine car body, and a driving rack is provided on the movable plate, and a first gear and a second gear meshed with the driving rack are respectively fixedly mounted on the first mounting shaft and the second mounting shaft, and when the movable plate moves along the direction of travel of the mine car body, the two first movable arms are driven away from each other and the two second movable arms are driven closer to each other; a tension spring is provided in the mounting seat for pulling the movable plate to move against the direction of travel of the mine car body.

[0009] As an optimal technical solution, a connecting plate is provided at the front end of the movable plate, a through hole is provided on the connecting plate for the traction rope to pass through, and a block is fixedly installed on the traction rope for pulling the movable plate to move along the traveling direction of the mining car body.

[0010] As a preferred technical solution, when the traction rope is in a tensioned state, neither the first friction plate nor the second friction plate contacts the track.

[0011] As a preferred technical solution, the two first movable arms are respectively provided with a first mounting portion extending downward at one end away from each other, the track is located between the two first mounting portions, and the first friction plate is installed on the inner side of the first mounting portion; the two second movable arms are respectively provided with a second mounting portion extending downward at one end away from each other, the second mounting portion is located between the two tracks, and the second friction plate is installed on the outer side of the second mounting portion.

[0012] As a further improvement, the first friction plate includes a mounting plate, a friction block is fixedly mounted on the side of the mounting plate close to the track, a laterally extending slide bar is fixedly mounted on the side of the mounting plate away from the track, the slide bar is slidably mounted on the corresponding first mounting portion, and a baffle is provided at the end of the slide bar away from the mounting plate to prevent the slide bar from falling off, and a spring is sleeved on the slide bar to push the mounting plate close to the track.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the present application, when the traction rope suddenly breaks, the tension spring pulls the movable plate backward, thereby driving the two first movable arms closer to each other and making the two first friction plates rest against the outer sides of the corresponding tracks. At the same time, it drives the two second movable arms away from each other and makes the second friction plates rest against the inner sides of the corresponding tracks, braking the mine car body and preventing it from running away.

[0015] 2. In this application, when the first friction plate and the second friction plate brake the mine car body, the first friction plate and the second friction plate on the same side clamp the corresponding rail, making the connection between the mine car body and the rail relatively stable, thus avoiding rollover accidents;

[0016] 3. The spring of the present application gives the mounting plate a thrust toward the side close to the track, so that when the first friction plate and the second friction plate move toward the side close to the track, the thrust of the spring can make the friction block fit stably with the track, thereby improving the braking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the right side;

[0020] Figure 3 yes Figure 2 Middle AA cross-sectional view;

[0021] Figure 4 yes Figure 3 Schematic diagram of the BB cross section;

[0022] Figure 5 yes Figure 3 Schematic diagram of CC cross section;

[0023] Figure 6 This is a schematic structural diagram of a movable plate according to an embodiment of the present utility model;

[0024] Figure 7 It is a structural schematic diagram of the first movable arm of an embodiment of the utility model.

[0025] In the figure: 1-mining car body; 2-traction rope; 3-wheel axle; 4-wheel body; 5-track; 6-mounting seat; 7-mounting cavity; 8-first mounting hole; 9-first movable arm; 10-first mounting part; 11-first friction plate; 12-second mounting hole; 13-second movable arm; 14-second mounting part; 15-second friction plate; 16-first mounting shaft; 17---; 18-first synchronous gear; 19-first rack; 20-second mounting shaft; 21-second synchronous gear; 22-second rack; 23-guide groove; 24-movable plate; 25-first gear; 26-second gear; 27-driving rack; 28-tension spring; 29-hanging plate; 30-connecting plate; 31-block; 32-mounting plate; 33-friction block; 34-slide rod; 35-block; 36-spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, a mine car that can prevent runaway vehicles includes a mine car body 1, the front end of the mine car body 1 is connected to a traction rope 2, and a horizontally extending wheel axle 3 is fixedly installed on the bottom of the mine car body 1. Two groups of wheel axles 3 are provided relative to each other in front and back. The left and right ends of the wheel axle 3 are respectively rotatably mounted with wheel bodies 4 through bearings. The wheel body 4 is equipped with a track 5. The end of the traction rope 2 away from the mine car body 1 is connected to a winch, and the winch pulls the mine car body 1 along the track 5 through the traction rope 2.

[0028] like Figure 3 and Figure 4 As shown, a mounting seat 6 is fixedly installed at the bottom of the mine car body 1 by bolts, and a mounting cavity 7 is provided in the mounting seat 6. First mounting holes 8 that are transversely connected to the mounting cavity 7 are respectively provided on the left and right sides of the mounting seat 6. First movable arms 9 are respectively installed in the two first mounting holes 8 for transverse sliding. The two first movable arms 9 are staggered up and down, and the ends of the two first movable arms 9 that are away from each other are respectively integrally formed with a first mounting portion 10 extending downward. The two rails 5 are located between the two first mounting portions 10, and the inner sides of the two first mounting portions 10 are respectively installed with first friction plates 11 for abutting the outer sides of the corresponding rails 5.

[0029] like Figure 3 and Figure 5As shown, the left and right sides of the mounting seat 6 are respectively provided with second mounting holes 12 that are transversely connected to the mounting cavity 7. Second movable arms 13 are respectively installed in the two second mounting holes 12 for transverse sliding. The two second movable arms 13 are staggered up and down. The ends of the two second movable arms 13 that are away from each other are respectively integrally formed with second mounting portions 14 extending downward. The outer sides of the two second mounting portions 14 are respectively installed with second friction plates 15 for abutting the inner sides of the corresponding rails 5.

[0030] When the traction rope 2 breaks, the two first movable arms 9 move closer to each other, thereby driving the two first friction plates 11 to rest against the outer sides of the corresponding rails 5 respectively. At the same time, the two second movable arms 13 move away from each other, thereby driving the two second friction plates 15 to rest against the inner sides of the corresponding rails 5 respectively. The friction between the first friction plates 11, the second friction plates 15 and the rails 5 is used to brake the mine car body 1 to prevent it from running away. In addition, the first friction plates 11 and the second friction plates 15 located on the same side clamp the corresponding rails 5, so that the connection between the mine car body 1 and the rails 5 is relatively stable, avoiding rollover accidents.

[0031] like Figures 3 to 6As shown, a linkage mechanism for driving the first movable arm 9 and the second movable arm 13 to move is provided in the mounting seat 6. The linkage mechanism includes a first mounting shaft 16 rotatably mounted in the mounting cavity 7 through a bearing. The first mounting shaft 16 extends vertically. A first synchronous gear 18 is fixedly mounted on the first mounting shaft 16. The first movable arm 9 is provided with a first strip hole vertically extending therethrough. The first synchronous gear 18 passes through the first strip hole. A first rack 19 meshing with the first synchronous gear 18 is integrally formed on the side wall of the first strip hole. The two first racks 19 are respectively meshed with the opposite sides of the first synchronous gear 18, so that when the first synchronous gear 18 rotates, the two first movable arms 9 are driven to move in opposite directions. A second mounting shaft 20 extending vertically is rotatably mounted in the mounting cavity 7 behind the first mounting shaft 16 through a bearing. A second synchronous gear 21 is fixedly mounted on the second mounting shaft 20. A second strip hole vertically extending therethrough is provided on the second movable arm 13. The second synchronous gear 21 passes through the second strip hole. A first rack 19 meshing with the first synchronous gear 18 is integrally formed on the side wall of the second strip hole. The second rack 22 is meshed with the second synchronous gear 21, and the two second racks 22 are respectively meshed with the opposite sides of the second synchronous gear 21, so that when the second synchronous gear 21 rotates, the two second movable arms 13 are driven to move in opposite directions; the mounting cavity 7 is a "convex" shape extending forward and backward, and the left and right side walls of the top of the mounting cavity 7 are respectively provided with guide grooves 23 extending forward and backward parallel to the traveling direction of the mine car body 1, and a movable plate 24 is slidably installed between the two guide grooves 23. The movable plate 24 is provided with a third strip hole arranged vertically through it. The first gear 25 is fixedly installed on the first mounting shaft 16 above the first synchronous gear 18, and the second gear 26 is fixedly installed on the second mounting shaft 20 above the second synchronous gear 21. The first gear 25 and the second gear 26 both pass through the third strip hole, and a driving rack 27 is integrally formed on the inner wall of the third strip hole, and the first gear 25 and the second gear 26 are both meshed with the driving rack 27.

[0032] Specifically, when the movable plate 24 moves forward along the traveling direction of the mine car body 1, the movable plate 24 drives the first gear 25 and the second gear 26 to rotate synchronously in the forward direction by driving the rack 27, and then the first gear 25 drives the first mounting shaft 16 and the first synchronous gear 18 to rotate synchronously in the forward direction, and the first synchronous gear 18 acts on the two first racks 19 to drive the two first movable arms 9 away from each other; at the same time, the second gear 26 drives the second mounting shaft 20 and the second synchronous gear 21 to rotate synchronously in the forward direction, and the second synchronous gear 21 acts on the two second racks 22 to drive the two second movable arms 13 closer to each other.

[0033] A tension spring 28 is provided in the mounting seat 6 for pulling the movable plate 24 to move backward against the direction of travel of the mining car body 1. A hanging plate 29 is provided on the rear side wall of the mounting cavity 7. One end of the tension spring 28 is hung on the rear end of the movable plate 24 and the other end is hung on the hanging plate 29. The number of tension springs 28 can be set according to actual needs.

[0034] When there is no external force, the tension of the tension spring 28 pulls the movable plate 24 to move backward against the direction of travel of the mine car body 1, and then the movable plate 24 drives the first gear 25 and the second gear 26 to rotate synchronously in the opposite direction by driving the rack 27. The first synchronous gear 18 follows the first gear 25 to reverse synchronously and drives the two first movable arms 9 to approach each other, so that the two first friction plates 11 respectively abut against the outer sides of the corresponding rails 5; at the same time, the second synchronous gear 21 follows the second gear 26 to reverse synchronously and drives the two second movable arms 13 to move away from each other, so that the two second friction plates 15 respectively abut against the inner sides of the corresponding rails 5, thereby braking the mine car body 1.

[0035] like Figure 2 As shown, the front end of the movable plate 24 extends forward to the outside of the mounting seat 6 and is integrally formed with a connecting plate 30 extending upward. The front end of the mounting cavity 7 is provided with an avoidance hole for the movable plate 24 to pass forward. The connecting plate 30 is located in front of the connection point between the traction rope 2 and the mine car body. A through hole is provided on the connecting plate 30 for the traction rope 2 to pass through. The traction rope 2 located on the rear side of the connecting plate 30 is locked with a stopper 31 for pulling the movable plate 24 to move forward along the traveling direction of the mine car body 1 by means of bolts. The stopper 31 cannot pass forward through the through hole on the connecting plate 30.

[0036] When the traction rope 2 is in a tensioned state, the first friction plate 11 and the second friction plate 15 do not contact the track 5. Specifically, when the winch normally reels the traction rope 2 and pulls the mine car body 1 along the track 5, the traction rope 2 is in a tensioned state. At this time, the traction rope 2 pulls the connecting plate 30 and the movable plate 24 forward a certain distance through the stopper 31, causing the tension spring 28 to stretch. The connecting plate 30 moves forward, thereby driving the two first movable arms 9 away from each other and the first friction plate 11 away from the corresponding track 5. At the same time, it drives the two second movable arms 13 closer to each other and the second friction plate 15 away from the corresponding track 5. The first friction plate 11 and the second friction plate 15 do not contact the track. Therefore, when the traction rope 2 normally pulls the mine car body 1 to move, the first friction plate 11 and the second friction plate 15 do not brake the mine car body 1.

[0037] When the traction rope 2 suddenly breaks, the tension spring 28 in the stretched state retracts and pulls the movable plate 24 backward. The movable plate 24 moves backward, thereby driving the two first movable arms 9 to approach each other and making the two first friction plates 11 abut against the outer sides of the corresponding rails 5. At the same time, it drives the two second movable arms 13 away from each other and makes the second friction plates 15 abut against the inner sides of the corresponding rails 5, braking the mine car body 1 and preventing the car from running away.

[0038] like Figure 7 As shown, the first friction plate 11 includes a mounting plate 32, a friction block 33 is bonded to the side of the mounting plate 32 close to the track 5, and a laterally extending slide rod 34 is fixedly installed on the side of the mounting plate 32 away from the track 5, one end of the slide rod 34 is connected to the mounting plate 32 by a thread, and two slide rods 34 are provided in parallel front and back, and the slide rods 34 are slidably mounted on the corresponding first mounting portion 10, and a baffle 35 is integrally formed on the end of the slide rod 34 away from the mounting plate 32 for preventing the slide rod 34 from falling off the first mounting portion 10, and a spring 36 for pushing the mounting plate 32 close to the track 5 is provided on the slide rod 34 located between the mounting plate 32 and the first mounting portion 10.

[0039] The second friction plate 15 has the same structure as the first friction plate 11. Specifically, the second friction plate 15 also includes a mounting plate 32. A friction block 33 is bonded to the side of the mounting plate 32 close to the track 5. A laterally extending slide bar 34 is fixedly installed on the side of the mounting plate 32 facing away from the track 5. The slide bar 34 is slidably mounted on the corresponding second mounting portion 14. A baffle 35 is integrally formed on the end of the slide bar 34 away from the mounting plate 32 to prevent the slide bar 34 from falling off the second mounting portion 14. A spring 36 is provided on the slide bar 34 located between the mounting plate 32 and the second mounting portion 14 to push the mounting plate 32 close to the track 5.

[0040] The spring 36 gives the mounting plate 32 a thrust toward the side close to the track 5, so that when the first friction plate 11 and the second friction plate 15 move toward the side close to the track 5, the thrust of the spring 36 can make the friction block 33 fit stably with the track 5, thereby improving the braking efficiency.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A mine car that can prevent runaway vehicles, comprising a mine car body, a traction rope connected to the front end of the mine car body, a horizontally extending wheel axle fixedly mounted on the bottom of the mine car body, and wheels rotatably mounted at both ends of the wheel axle, the wheels being fitted with tracks, characterized in that: A mounting seat is fixedly installed at the bottom of the mining car body, and first movable arms are installed on opposite sides of the mounting seat for horizontal sliding, and the ends of the two first movable arms away from each other are respectively installed with first friction plates for abutting the corresponding outer sides of the rails; second movable arms are also installed on opposite sides of the mounting seat for horizontal sliding, and the ends of the two second movable arms away from each other are respectively installed with second friction plates for abutting the corresponding inner sides of the rails; a linkage mechanism for driving the first movable arm and the second movable arm to move is provided in the mounting seat.

2. The anti-runaway mining car according to claim 1, characterized in that: The linkage mechanism includes a first mounting shaft rotatably mounted in the mounting seat, a first synchronous gear fixedly mounted on the first mounting shaft, a first rack meshed with the first synchronous gear on the first movable arm, and the two first racks are respectively meshed with opposite sides of the first synchronous gear; a second mounting shaft is also rotatably mounted in the mounting seat, a second synchronous gear fixedly mounted on the second mounting shaft, a second rack meshed with the second synchronous gear on the second movable arm, and the two second racks are respectively meshed with opposite sides of the second synchronous gear; a movable plate is slidably mounted on the mounting seat along the direction of travel parallel to the mine car body, and a driving rack is provided on the movable plate, and a first gear and a second gear meshed with the driving rack are respectively fixedly mounted on the first mounting shaft and the second mounting shaft. When the movable plate moves along the direction of travel of the mine car body, the two first movable arms are driven away from each other and the two second movable arms are driven towards each other; a tension spring is provided in the mounting seat for pulling the movable plate to move against the direction of travel of the mine car body.

3. The anti-runaway mining car according to claim 2, characterized in that: A connecting plate is provided at the front end of the movable plate. A through hole is provided on the connecting plate for the traction rope to pass through. A stopper for pulling the movable plate to move along the traveling direction of the mining car body is fixedly installed on the traction rope.

4. The anti-runaway mining car according to claim 3, characterized in that: When the traction rope is in a tensioned state, neither the first friction plate nor the second friction plate contacts the track.

5. The anti-runaway mining car according to claim 1, characterized in that: The two first movable arms are respectively provided with a first mounting portion extending downward at one end away from each other, the track is located between the two first mounting portions, and the first friction plate is installed on the inner side of the first mounting portion; the two second movable arms are respectively provided with a second mounting portion extending downward at one end away from each other, the second mounting portion is located between the two tracks, and the second friction plate is installed on the outer side of the second mounting portion.

6. The anti-runaway mining car according to claim 5, characterized in that: The first friction plate includes a mounting plate, a friction block is fixedly mounted on the side of the mounting plate close to the track, a laterally extending slide bar is fixedly mounted on the side of the mounting plate away from the track, the slide bar is slidably mounted on the corresponding first mounting portion, and a baffle is provided at the end of the slide bar away from the mounting plate to prevent the slide bar from falling off, and a spring is sleeved on the slide bar to push the mounting plate close to the track.

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