Self-adapting buffer anti-derailing guide device for mine car

Abstract

The utility model discloses a kind of self-adaptive buffer anti-derailing guide device for mine car, apply in coal mining field;The utility model passes through first spring and first hydraulic bumper, so that guide wheel can be dynamically self-adaptive adjustment within the range of track width ±50mm, effectively solve the problem of jamming or failure caused by gauge deviation of traditional fixed guide wheel, inclination sensor real-time monitoring mine car gravity center deviation, controller is adjusted the pressure of two sides guide wheel, form anti-rollover moment when driving in curve, effectively offset the risk of lateral tilting caused by centrifugal force, to achieve the purpose of anti-derailing, greatly improve the stability and safety of mine car, the utility model is loosened by fixed bolt, moves and drives block and makes fixed rod move, fixed rod moves and makes fixed rod and clamping groove disengage, guide wheel is taken down, to facilitate the disassembly of guide wheel, to facilitate the replacement of guide wheel, improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of coal mining, and in particular to an adaptive buffer anti-derailment guiding device for mine cars. Background Technology

[0002] Underground transportation operations are a crucial part of mine production, referring to the process of transferring materials and personnel between different working faces, roadways, and shaft entrances using equipment within the underground mine. The underground environment is characterized by confined spaces, dim lighting, complex geological conditions, and high humidity and dust levels. These factors significantly increase the risks associated with the operation of transportation equipment, thus placing high demands on the safety of mine cars.

[0003] A search of Chinese patents revealed publication number CN221519621U, which relates to the field of mining equipment technology, specifically a mining car. This invention includes a mining car and a slide rail. The mining car is slidably mounted on the slide rail. A support plate is installed on the side wall of the mining car, and a chain is connected to the support plate. The other end of the chain is connected to a limit clamp, which is fitted onto the rim of the mining car's roller. This invention has a simple structure. During the operation of the mining car, the limit clamp is hung on the support plate. When the mining car needs to stop, the limit clamp is removed from the support plate and engaged with the rim of the roller. The limit clamp restricts the rotation of the roller, thus stopping the mining car and avoiding the problem of having to carry a car cover at all times for stopping.

[0004] Existing guiding devices lack derailment prevention capabilities. Underground tracks are susceptible to problems such as track gauge deviation and localized deformation due to geological conditions and long-term rolling. Generally, the guide wheels in guiding devices are fixed and cannot adapt to changes in track gauge. When the track gauge is too large, the guide wheels do not make sufficient contact with the track sidewall, failing to effectively limit the lateral deviation of the mine car. When the track gauge is too small, the guide wheels rigidly compress against the track sidewall, easily causing jamming, accelerated wear, and even guide wheel axle breakage, resulting in the loss of the guiding and derailment prevention function. When the mine car travels on curves, it generates significant centrifugal force, causing the car body to tilt. Fixed guide wheels lack a buffer structure and cannot offset the lateral impact of this centrifugal force, easily leading to unstable wheel-rail contact and increasing the risk of derailment. To address these problems, we propose an adaptive buffer derailment prevention guiding device for mine cars. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive buffer anti-derailment guiding device for mine cars, which has the advantage of having an anti-derailment function.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adaptive buffer anti-derailment guiding device for mine cars, including a bracket, a mine car hinged to the top of the bracket, a buffer mechanism provided between the bottom of the bracket and the mine car, a first hydraulic buffer fixedly sleeved on the inner wall of the bracket, a limit plate fixedly sleeved on the surface of the output end of the first hydraulic buffer, a first spring provided between the limit plate and the surface of the bracket, a fixing head bolted to the output end of the first hydraulic buffer, a guide wheel slidably sleeved on the inner wall of the fixing head, a fixing pin penetrating the inner wall of the guide wheel and the inner wall of the fixing head, a fixing rod slidably sleeved on the inner wall of the fixing head, a snap-fit ​​groove opened on the surface of the fixing pin, and the snap-fit ​​groove snaps into one end of the fixing rod, a second spring provided between one end of the fixing rod and the inner wall of the fixing head, and a toggle block bolted to the surface of the fixing rod.

[0007] By adopting the above technical solution, the guide wheel can be dynamically and adaptively adjusted within a track width range of ±50mm through the first spring and the first hydraulic damper. This effectively solves the problem of jamming or failure caused by track gauge deviation in traditional fixed guide wheels. The tilt sensor monitors the center of gravity shift of the mine car in real time. The controller adjusts the pressure of the guide wheels on both sides to generate an anti-rollover moment when driving on curves, effectively offsetting the risk of tilting caused by centrifugal force, thereby achieving the purpose of preventing derailment. This greatly improves the stability and safety of the mine car. By loosening the fixing bolts and moving the actuating block, the fixing rod can be moved. The movement of the fixing rod disengages from the locking groove, allowing the guide wheel to be removed. This facilitates the disassembly and assembly of the guide wheel, making it easy to replace and improving its practicality.

[0008] The present invention is further configured such that: the buffer mechanism includes a second hydraulic buffer, the second hydraulic buffer is hinged between the bottom of the mine car and the top of the support, and a third spring is sleeved on the surface of the second hydraulic buffer.

[0009] By adopting the above technical solution, a buffer mechanism is set up to cushion the mine car and improve its stability.

[0010] The present invention is further configured such that the surface of the actuating block is provided with anti-slip texture.

[0011] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0012] The present invention is further configured such that the first spring and the third spring are both made of 60Si2Mn alloy spring steel.

[0013] By adopting the above technical solution, the first and third springs are both made of 60Si2Mn alloy spring steel, which has high strength and durability.

[0014] The present invention is further configured such that a fixing bolt is threadedly connected between the inner wall of the actuating block and the inner wall of the fixing head.

[0015] By adopting the above technical solution, fixing bolts and actuating blocks are used for fixation to prevent loosening.

[0016] The present invention is further configured such that a tilt sensor is bolted to the bottom of the mining car.

[0017] The above technical solution is adopted to monitor the tilt angle of the mine car by setting up a tilt sensor.

[0018] The present invention is further configured such that the surface of the guide wheel is provided with a highly wear-resistant rubber layer.

[0019] By adopting the above technical solution, friction noise is reduced by setting a highly wear-resistant rubber layer.

[0020] The present invention is further configured such that one end of the fixing rod is wedge-shaped.

[0021] By adopting the above technical solution, one end of the fixing rod is wedge-shaped, which facilitates the fixing pin.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model enables the guide wheel to dynamically and adaptively adjust within a track width range of ±50mm using a first spring and a first hydraulic damper, effectively solving the problem of jamming or failure caused by track gauge deviation in traditional fixed guide wheels. The tilt sensor monitors the shift of the mine car's center of gravity in real time, and the controller generates an anti-rollover torque when driving on curves by adjusting the pressure of the guide wheels on both sides, effectively offsetting the risk of tilting caused by centrifugal force, thereby achieving the purpose of preventing derailment and greatly improving the stability and safety of the mine car. 2. This utility model allows for easy disassembly and assembly of the guide wheel by loosening the fixing bolts and moving the actuating block to move the fixing rod. The movement of the fixing rod disengages it from the locking groove, allowing the guide wheel to be removed. This facilitates the replacement of the guide wheel and improves its practicality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle Reference numerals: 1. Support; 2. Mine car; 3. Buffer mechanism; 4. First hydraulic buffer; 5. Limiting plate; 6. First spring; 7. Fixing head; 8. Guide wheel; 9. Fixing pin; 10. Fixing rod; 11. Second spring; 12. Actuating block; 13. Second hydraulic buffer; 14. Third spring; 15. Anti-slip texture; 16. Fixing bolt; 17. Tilt sensor; 18. High wear-resistant rubber layer; 19. Snap-fit ​​groove. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0025] refer to Figure 1 and Figure 2 An adaptive buffer anti-derailment guiding device for mine cars includes a bracket 1, a mine car 2 hinged to the top of the bracket 1, a buffer mechanism 3 between the bottom of the bracket 1 and the mine car 2, a first hydraulic buffer 4 fixedly sleeved on the inner wall of the bracket 1, a limit plate 5 fixedly sleeved on the surface of the output end of the first hydraulic buffer 4, and a first spring 6 between the limit plate 5 and the surface of the bracket 1. Through the first spring 6 and the first hydraulic buffer 4, the guide wheel 8 can be dynamically and adaptively adjusted within the track width ±50mm, effectively solving the problem of jamming or failure of traditional fixed guide wheels 8 due to track gauge deviation. An inclination sensor 17 monitors the center of gravity shift of the mine car 2 in real time. The controller adjusts the pressure of the guide wheels 8 on both sides to form an anti-rollover torque when driving on curves, effectively offsetting the risk of tilting caused by centrifugal force, thereby achieving the purpose of preventing derailment and greatly improving the stability and safety of the mine car 2.

[0026] refer to Figure 2 The buffer mechanism 3 includes a second hydraulic buffer 13, which is hinged between the bottom of the mine car 2 and the top of the support 1. A third spring 14 is fitted on the surface of the second hydraulic buffer 13. By setting the buffer mechanism 3, the mine car 2 is buffered, and the stability is improved.

[0027] refer to Figure 2 The first spring 6 and the third spring 14 are both made of 60Si2Mn alloy spring steel. By setting the first spring 6 and the third spring 14 to be made of 60Si2Mn alloy spring steel, the springs are strong and durable.

[0028] refer to Figure 2 The bottom of the mine car 2 is bolted with an inclination sensor 17, which monitors the tilt angle of the mine car 2.

[0029] refer to Figure 1 The surface of the guide wheel 8 is provided with a high wear-resistant rubber layer 18, which reduces friction noise. Example

[0030] refer to Figure 2 and Figure 3 The output end of the first hydraulic buffer 4 is bolted to a fixing head 7. A guide wheel 8 is slidably sleeved on the inner wall of the fixing head 7. A fixing pin 9 is provided through the inner wall of the guide wheel 8 and the inner wall of the fixing head 7. A fixing rod 10 is slidably sleeved on the inner wall of the fixing head 7. A snap-fit ​​groove 19 is provided on the surface of the fixing pin 9, and the snap-fit ​​groove 19 snaps with one end of the fixing rod 10. A second spring 11 is provided between one end of the fixing rod 10 and the inner wall of the fixing head 7. A toggle block 12 is bolted to the surface of the fixing rod 10. By loosening the fixing bolt 16 and moving the toggle block 12, the fixing rod 10 is moved. The movement of the fixing rod 10 causes the fixing rod 10 to disengage from the snap-fit ​​groove 19, and the guide wheel 8 can be removed. This facilitates the disassembly and assembly of the guide wheel 8, making it easy to replace the guide wheel 8 and improving its practicality.

[0031] refer to Figure 3 The surface of the toggle block 12 is provided with anti-slip texture 15. By setting the anti-slip texture 15, the hand slips and the operation is facilitated.

[0032] refer to Figure 3 A fixing bolt 16 is threaded between the inner wall of the actuating block 12 and the inner wall of the fixing head 7. By setting the fixing bolt 16, the actuating block 12 is fixed to prevent loosening.

[0033] refer to Figure 3 One end of the fixing rod 10 is wedge-shaped, which facilitates the fixing pin 9.

[0034] Brief description of operation: When the mine car 2 travels to a position with a larger track gauge, the first spring 6 drives the first hydraulic buffer 4 to extend the guide wheel 8, automatically compensating for deviation distance. When the mine car 2 travels to a position with a smaller track gauge, the inner side of the track presses against the guide wheel 8, causing the guide wheel 8 to drive the piston rod of the first hydraulic buffer 4 to retract, enabling the guide wheel 8 to adapt to track gauge changes within a range of ±50mm, preventing jamming or failure. The tilt sensor 17 monitors the tilt of the mine car 2. If the mine car 2 tilts, the controller will cause the first hydraulic buffer 4 to push the guide wheel 8 to move and press it against the track. To prevent the mine car 2 from tipping over and derailing, the second hydraulic buffer 13 at the tipping position pushes the mine car 2 to prevent it from tilting, further improving its anti-tipping capability. Loosen the fixing bolt 16, move the actuating block 12, and the movement of the actuating block 12 will cause the fixing rod 10 to move, so that the fixing rod 10 is disengaged from the locking groove 19. Remove the fixing pin 9 and the guide wheel 8. During installation, insert the guide wheel 8 into the fixing head 7, insert the fixing pin 9, and the fixing rod 10 will engage with the locking groove 19 under the action of the second spring 11 to fix it, thus facilitating the replacement of the guide wheel 8.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An adaptive buffer anti-derailment guiding device for mine cars, comprising a bracket (1), characterized in that, A mine car (2) is hinged to the top of the support (1). A buffer mechanism (3) is provided between the bottom of the support (1) and the mine car (2). A first hydraulic buffer (4) is fixedly sleeved on the inner wall of the support (1). A limit plate (5) is fixedly sleeved on the surface of the output end of the first hydraulic buffer (4). A first spring (6) is provided between the limit plate (5) and the surface of the support (1). A fixing head (7) is bolted to the output end of the first hydraulic buffer (4). The inner wall of the fixing head (7) A guide wheel (8) is slidably sleeved, and a fixing pin (9) is provided through the inner wall of the guide wheel (8) and the inner wall of the fixing head (7). A fixing rod (10) is slidably sleeved on the inner wall of the fixing head (7). A snap-fit ​​groove (19) is opened on the surface of the fixing pin (9), and the snap-fit ​​groove (19) is snapped with one end of the fixing rod (10). A second spring (11) is provided between one end of the fixing rod (10) and the inner wall of the fixing head (7). A toggle block (12) is bolted to the surface of the fixing rod (10).

2. The adaptive buffer anti-derailment guiding device for mine cars according to claim 1, characterized in that, The buffer mechanism (3) includes a second hydraulic buffer (13), which is hinged between the bottom of the mine car (2) and the top of the support (1), and a third spring (14) is fitted on the surface of the second hydraulic buffer (13).

3. The adaptive buffer anti-derailment guiding device for mine cars according to claim 1, characterized in that, The surface of the actuating block (12) is provided with anti-slip texture (15).

4. The adaptive buffer anti-derailment guiding device for mine cars according to claim 1, characterized in that, The first spring (6) and the third spring (14) are both made of 60Si2Mn alloy spring steel.

5. The adaptive buffer anti-derailment guiding device for mine cars according to claim 1, characterized in that, A fixing bolt (16) is threaded between the inner wall of the actuating block (12) and the inner wall of the fixing head (7).

6. The adaptive buffer anti-derailment guiding device for mine cars according to claim 1, characterized in that, The bottom of the mining car (2) is bolted with an angle sensor (17).

7. The adaptive buffer anti-derailment guiding device for mine cars according to claim 1, characterized in that, The surface of the guide wheel (8) is provided with a high wear-resistant rubber layer (18).

8. The adaptive buffer anti-derailment guiding device for mine cars according to claim 2, characterized in that, One end of the fixing rod (10) is wedge-shaped.

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