Car stopping device for underground coal mine

Abstract

The utility model belongs to the technical field of mining, and discloses an underground coal mine car stopping device which comprises a base, a pneumatic controller and two steel rails, the base is fixedly installed between the left steel rail and the right steel rail, a left car stopping brake and a right car stopping brake are arranged in the base, damping assemblies are connected in the car stopping brakes in a sleeved mode, and the pneumatic controller is connected with the pneumatic controller. A pneumatic assembly is hinged between the opposite faces of the lower ends of the two vehicle stopping brakes, and the opposite faces of the upper ends of the two vehicle stopping brakes are attached to the steel rails on the corresponding sides. A limiting sliding groove is formed in the back face of an inner cavity of the base, and an adjusting assembly is fixedly installed in the middle of the limiting sliding groove. Due to the arrangement of the sealing telescopic rod, the buffer spring can be compressed smoothly under the cooperation of the adjusting assembly so as to achieve the required buffer effect, meanwhile, the recovery of the buffer spring can be limited so as to reduce the vibration of the elastic force recovery of the buffer spring, and the service life of the buffer spring is prolonged. Therefore, the effect of reducing vibration can be effectively achieved when the buffer spring provides buffer for the transport vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining, in particular to a vehicle blocking device used in coal mines. Background Art

[0002] The car-blocking device is mainly used in single-track or double-track lifting and transportation inclined tunnels with an inclination angle of less than 30 degrees above or below the surface of coal mines, metal mines, non-metallic mines, etc. Its purpose is to prevent the occurrence of "runaway cars" and it plays a very important role in the underground construction process.

[0003] The utility model patent with application number CN202320742621.1 discloses a pneumatic car arrester for mining, in which the car arrester is fixed as a whole to the inclined track in the mine through a base to prevent the car from running away in the event of rope breakage or unhooking. Specifically, the two car arresters are controlled by a pneumatic drive device to hold the track so that the transport wheels cannot continue to run on the track, thereby achieving the purpose of stopping the car. Moreover, when the two car arresters slide, the springs are compressed to achieve the purpose of car blocking and buffering. However, since the springs have the characteristic of immediate rebound, the elastic force of the springs will recover after the car blocking and buffering, which will push the transport car to move in the opposite direction and increase the vibration frequency of the transport car. Moreover, the spring structure is fixed, and the loading condition of the transport car is unknown. There is a big difference between the impact force when the cargo is lightly loaded and the impact force when the cargo is heavy loaded, and the fixedly installed spring may not be able to adapt to the impact forces of different intensities. Therefore, it is necessary to develop a new car arrester for inclined tracks in coal mines to solve the shortcomings of the existing technology. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a vehicle blocking device for use in coal mines, which has the advantages of better vehicle blocking effect and easy installation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car-blocking device for use in coal mines, comprising a base, a pneumatic controller and two steel rails, the base being fixedly installed between the left and right steel rails, and left and right car-blocking brakes being arranged inside the base, a shock-absorbing assembly being sleeved inside the car-blocking brake, a pneumatic assembly being hinged between the facing surfaces of the lower ends of the two car-blocking brakes, and the back surfaces of the upper ends of the two car-blocking brakes being in contact with the steel rails on the corresponding side; a limiting slide groove is provided on the back side of the inner cavity of the base, an adjustment assembly is fixedly installed in the middle part of the limiting slide groove, and left and right sealed telescopic rods are movably installed inside the limiting slide groove, the proximal ends of the two sealed telescopic rods are fixedly connected to the left and right sides of the adjustment assembly, and the distal ends of the two adjustment assemblies are respectively connected to the two shock-absorbing assemblies.

[0006] Preferably, two front and rear embedded positioning plates perpendicular to the rails are welded to the bottom of the base, the embedded positioning plates are inserted into the ground, and the left and right ends of the base are fixedly connected to the left and right rails by bolts.

[0007] Preferably, the pneumatic component includes a connecting sleeve arranged between two vehicle brakes, a connecting cavity is opened in the middle of the connecting sleeve, an air inlet hole is opened inside the connecting sleeve, and an outer surface of the connecting sleeve is fixedly connected to an air inlet pipe through the air inlet hole.

[0008] Preferably, the pneumatic controller is fixedly installed on one side of the rail, and the pneumatic controller includes an air control box and an air pump, and the air pump is connected to the air inlet pipe through a hose.

[0009] Preferably, the internal movable sleeve of the connecting sleeve is connected with two left and right linkage sliding rods, and the interior of the connecting sleeve is provided with two left and right sealed cavities located at both ends of the connecting cavity. The proximal ends of the two linkage sliding rods respectively extend into a sealed cavity on each corresponding side and are fixedly connected with a piston with a sealing sleeve, and the distal ends of the two linkage sliding rods pass through the sealed cavity and extend to the outside of the connecting sleeve and are respectively movably hinged to the lower end of a vehicle blocking brake on the corresponding side.

[0010] Preferably, the shock absorbing assembly includes two left and right limiting slide bars fixedly mounted inside the base, the two limiting slide bars are movably sleeved on the middle parts of the two brakes, a buffer spring is provided on the outside of the limiting slide bar, and a first linkage block is movably sleeved on the outside of the limiting slide bar, and the first linkage block is located between the buffer spring and the brake.

[0011] The inner sliding clamp of the limiting sliding groove is connected with two left and right second linkage blocks, and a linkage arm is hinged between the second linkage block and the first linkage block on the same side, and the top cross section of the linkage arm is arc-shaped.

[0012] Preferably, the adjustment component includes a connecting seat fixedly installed in the middle of the limiting slide groove, the connecting seat is a hollow structure, the connecting seat is fixedly connected between the two sealed telescopic rods, a card slot is provided on the front of the connecting seat, a sealing plate is embedded in the interior of the card slot, the upper end of the sealing plate is hinged to the connecting seat, and an adjustment plate is embedded in the middle of the sealing plate. The connecting seat and the adjustment plate are internally provided with a number of through holes that are interconnected and evenly distributed, and the sealed telescopic rod is connected to the outside world through the hollow connecting seat and the through holes.

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

[0014] 1. Due to the provision of the sealed telescopic rod, the utility model ensures that the buffer spring can be smoothly compressed with the cooperation of the adjustment component to achieve the required buffering effect. At the same time, it can limit the recovery of the buffer spring to reduce the vibration of the buffer spring's elastic force recovery, thereby ensuring that the buffer spring can effectively achieve the effect of reducing vibration when providing buffering for the transport vehicle.

[0015] 2. Due to the setting of the pneumatic components, the utility model enables the two car brakes to be installed inside the two rails in the form of an adapter base with the cooperation of the limit slide bar, thereby ensuring that the entire car brake can be directly installed between the two rails, avoiding the existing situation of dismantling the original rails and installing the base to the bottom of the rails, thereby greatly reducing the construction workload.

[0016] 3. In the present invention, since the base and the brake are integrally installed between the two rails, the brake is always located between the two rails on opposite sides before and after the blocking action, thus preventing the brake from swinging to the outside of the two rails during non-blocking periods, thereby affecting the passage of staff and even causing collisions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model after installation;

[0018] Figure 2 This is a top view of the utility model after installation;

[0019] Figure 3 This is a schematic diagram of the side structure after installation of the utility model

[0020] Figure 4 It is a structural diagram of the utility model;

[0021] Figure 5 for Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0022] Figure 6 It is a cross-sectional schematic diagram of the pneumatic component in the present utility model.

[0023] In the figure: 1. base; 2. rail; 3. brake; 4. pneumatic component; 41. connecting sleeve; 42. air inlet pipe; 43. connecting chamber; 44. air inlet hole; 45. linkage slide; 46. sealing chamber; 47. piston; 5. shock-absorbing component; 51. limiting slide; 52. buffer spring; 53. first linkage block; 54. linkage arm; 55. second linkage block; 6. embedded positioning plate; 7. limiting slide; 8. sealing telescopic rod; 9. adjustment component; 91. connecting seat; 92. slot; 93. sealing plate; 94. adjustment plate; 95. through hole. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 6 As shown, the utility model provides a vehicle blocking device for use in coal mines, including a base 1 and a pneumatic controller and two steel rails 2. The base 1 is fixedly installed between the left and right steel rails 2. The base 1 is internally provided with left and right vehicle blocking brakes 3. The vehicle blocking brakes 3 are sleeved with a shock absorbing component 5. A pneumatic component 4 is hinged between the lower end facing surfaces of the two vehicle blocking brakes 3. The upper end facing back surfaces of the two vehicle blocking brakes 3 are in contact with the steel rails 2 on the corresponding side. A limited slide groove 7 is provided on the back of the inner cavity of the base 1. An adjustment component 9 is fixedly installed in the middle of the limited slide groove 7. The internal movable Two left and right sealed telescopic rods 8 are installed, and the proximal ends of the two sealed telescopic rods 8 are fixedly connected to the left and right sides of the adjustment component 9, and the distal ends of the two adjustment components 9 are respectively connected to the two shock-absorbing components 5; due to the setting of the sealed telescopic rod 8, with the cooperation of the adjustment component 9, the buffer spring 52 can be smoothly compressed to achieve the required buffering effect, and at the same time, the recovery of the buffer spring 52 can be limited to reduce the vibration of the elastic recovery of the buffer spring 52, thereby ensuring that the buffer spring 52 can effectively achieve the effect of reducing vibration when providing buffering for the transport vehicle.

[0026] like Figure 1 As shown, two front and rear embedded positioning plates 6 perpendicular to the rails 2 are welded to the bottom of the base 1, and the embedded positioning plates 6 are inserted into the ground. The left and right ends of the base 1 are fixedly connected to the left and right rails 2 by bolts; since the base 1 and the vehicle blocking brake 3 are installed as a whole between the two rails 2, the vehicle blocking brake 3 is always located between the back faces of the two rails 2 before and after the vehicle blocking action, avoiding the vehicle blocking brake 3 swinging to the outside of the two rails 2 during non-vehicle blocking period and affecting the passage of staff or even causing collisions.

[0027] like Figure 2 and Figure 6 As shown, the pneumatic assembly 4 includes a connecting sleeve 41 provided between the two brakes 3, a connecting cavity 43 is provided in the middle of the connecting sleeve 41, an air inlet hole 44 is provided inside the connecting sleeve 41, and the outer surface of the connecting sleeve 41 is fixedly connected to the air inlet pipe 42 through the air inlet hole 44; due to the cooperation of the connecting sleeve 41, the linkage slide rod 45 and the piston 47, the air hole box can control the extension and contraction of the pneumatic assembly 4 through the air inlet pipe 42, and then achieve the effect of controlling the swing of the two brakes 3 under the restriction of the limit slide rod 51.

[0028] like Figure 1 As shown, the pneumatic controller is fixedly installed on one side of the rail 2. The pneumatic controller includes an air control box and an air pump. The air pump is connected to the air inlet pipe 42 through a hose.

[0029] like Figure 6 As shown, the internal movable sleeve of the connecting sleeve 41 is provided with two left and right linkage slide rods 45, and the interior of the connecting sleeve 41 is provided with two left and right sealed chambers 46 located at the two ends of the connecting chamber 43. The proximal ends of the two linkage slide rods 45 extend to a sealed chamber 46 on each corresponding side and are fixedly connected with a piston 47 of the sealing sleeve. The distal ends of the two linkage slide rods 45 pass through the sealed chamber 46 and extend to the outside of the connecting sleeve 41 and are movably hinged to the lower end of a brake 3 on the corresponding side; due to the setting of the pneumatic component 4, with the cooperation of the limiting slide rod 51, the two brakes 3 can be installed in the form of an adapter base 1 inside the two rails 2, thereby ensuring that the entire brake can be directly installed between the two rails 2, avoiding the existing situation of dismantling the original rail 2 and installing the base 1 to the bottom of the rail 2, thereby greatly reducing the construction workload.

[0030] like Figure 2 and Figure 4 As shown, the shock absorbing assembly 5 includes two left and right limiting slide bars 51 fixedly mounted inside the base 1. The two limiting slide bars 51 are movably sleeved on the middle parts of the two brakes 3. A buffer spring 52 is provided on the outside of the limiting slide bar 51. A first linkage block 53 is also movably sleeved on the outside of the limiting slide bar 51. The first linkage block 53 is located between the buffer spring 52 and the brake 3.

[0031] The limiting sliding groove 7 is internally slidably connected to two left and right second linkage blocks 55 , and a linkage arm 54 is hinged between the second linkage block 55 and the first linkage block 53 on the same side. The top cross section of the linkage arm 54 is arc-shaped.

[0032] like Figure 4 and Figure 5 As shown, the adjustment component 9 includes a connecting seat 91 fixedly installed in the middle of the limiting slide groove 7. The connecting seat 91 is a hollow structure. The connecting seat 91 is fixedly connected between the two sealed telescopic rods 8. A card slot 92 is provided on the front of the connecting seat 91. A sealing plate 93 is embedded in the interior of the card slot 92. The upper end of the sealing plate 93 is hinged to the connecting seat 91, and an adjustment plate 94 is embedded in the middle of the sealing plate 93. The connecting seat 91 and the adjustment plate 94 are both provided with a number of through holes 95 that are interconnected and evenly distributed. The sealed telescopic rod 8 is connected to the outside world through the hollow connecting seat 91 and the through holes 95; rotating the adjustment plate 94 can cause the through holes 95 inside the connecting seat 91 to be misaligned with the through holes 95 in the connecting seat, so that the air intake channel can be reduced, and then the recovery rate of the buffer spring 52 can be adjusted, so that its recovery rate is adapted to the weight of the transported goods under different environments.

[0033] The working principle and use process of this utility model:

[0034] With the cooperation of the embedded positioning plate 6 and the like, the base 1 and the brake 3 and other structures are integrally installed between the left and right rails 2 in the inclined lane by means of bolts and the like. Air is injected into the air inlet pipe 42 through the pneumatic control mechanism, and the two pistons 47 are pushed away from each other along the inside of the left and right sealed chambers 46 under the cooperation of the air inlet hole 44 and the connecting chamber 43, thereby causing the left and right linkage slide bars 45 to push the lower ends of the two brakes 3. Then, under the restriction of the limit slide bar 51, the upper ends of the brakes 3 are swung away from the rails 2 until they are free from the rails 2.

[0035] On the contrary, the lower ends of the two brakes 3 can be pulled, and then the upper ends of the two brakes 3 are swung toward the rail 2 under the restriction of the limit slide 51 until they are pressed against the surface of the rail 2.

[0036] When the transport vehicle reaches the base 1 and is above the inclined rail 2, the vehicle can be stopped with the cooperation of the vehicle stop 3 to ensure stable parking.

[0037] When the transport vehicle hits the two vehicle blocking brakes 3, the two corresponding first linkage blocks 53 can compress the buffer springs 52 under the constraints of the limiting slide bar 51 and the base 1, thereby increasing their elastic restoring force. During the movement of the two first linkage blocks 53 compressing the buffer springs 52, the two second linkage blocks 55 can be pushed closer to each other along the interior of the limiting slide groove 7 by their respective linkage arms 54, thereby shortening the two sealing telescopic rods 8 and exhausting the internal air under the obstruction of the adjustment component 9.

[0038] The air exhausted from the sealed telescopic rod 8 enters the connecting seat 91, and part of the air is exhausted from the through hole 95. More air pushes the connecting seat 91 to flip its lower end upward, thereby ensuring that the air inside the connecting seat 91 is exhausted in time and that the first linkage block 53 can smoothly compress the buffer spring 52.

[0039] When the buffer spring 52 releases its elastic force, it will push the first linkage block 53 and stretch the sealed telescopic rod 8 through the linkage arm 54 and the second linkage block 55, so that the external air enters the interior of the sealed telescopic rod 8 through the adjustment component 9. At this time, since the sealing plate 93 is completely covered in the card slot 92 under the action of airflow and its own gravity, the external air can only enter the sealed telescopic rod 8 through the through hole 95. Since the inner diameter of the through hole 95 remains unchanged during this period, the stretching rate of the sealed telescopic rod 8 can be kept relatively stable, thereby ensuring that the buffer spring 52 recovers slowly and smoothly and pushes the transport vehicle through the first linkage block 53 and the vehicle brake 3.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle blocking device for use in coal mines, comprising a base (1), a pneumatic controller, and two rails (2), characterized in that: The base (1) is fixedly installed between the left and right rails (2); the base (1) is provided with left and right brakes (3); the brakes (3) are sleeved with a shock-absorbing assembly (5); the lower ends of the two brakes (3) are hinged with a pneumatic assembly (4); the upper ends of the two brakes (3) are in contact with the rails (2) on the corresponding side; a limiting slot (7) is provided on the back of the inner cavity of the base (1); the middle part of the limiting slot (7) is fixedly installed with an adjustment assembly (9); the inside of the limiting slot (7) is movably installed with left and right sealing telescopic rods (8); the proximal ends of the two sealing telescopic rods (8) are fixedly connected to the left and right sides of the adjustment assembly (9); the distal ends of the two adjustment assemblies (9) are respectively connected to the two shock-absorbing assemblies (5).

2. The vehicle blocking device for use in coal mines according to claim 1, characterized in that: Two front and rear embedded positioning plates (6) perpendicular to the steel rails (2) are welded to the bottom of the base (1); the embedded positioning plates (6) are inserted into the ground; and the left and right ends of the base (1) are fixedly connected to the left and right steel rails (2) by bolts.

3. The vehicle blocking device for use in coal mines according to claim 1, characterized in that: The pneumatic assembly (4) comprises a communication sleeve (41) provided between two vehicle brakes (3); a communication cavity (43) is provided in the middle of the communication sleeve (41); an air inlet hole (44) is provided inside the communication sleeve (41); and an air inlet pipe (42) is fixedly connected to the outer surface of the communication sleeve (41) through the air inlet hole (44).

4. The vehicle blocking device for use in coal mines according to claim 3, characterized in that: The pneumatic controller is fixedly installed on one side of the rail (2), and comprises an air control box and an air pump, wherein the air pump is connected to the air inlet pipe (42) via a hose.

5. The vehicle blocking device for use in coal mines according to claim 3, characterized in that: The connecting sleeve (41) is internally movably sleeved with two left and right linkage slide rods (45), and the connecting sleeve (41) is internally provided with two left and right sealing chambers (46) located at both ends of the connecting chamber (43). The proximal ends of the two linkage slide rods (45) respectively extend into a sealing chamber (46) on each corresponding side and are fixedly connected to a piston (47) connected with the sealing sleeve. The distal ends of the two linkage slide rods (45) pass through the sealing chamber (46) and extend to the outside of the connecting sleeve (41) and are respectively movably hinged to the lower end of a vehicle blocking brake (3) on the corresponding side.

6. The vehicle blocking device for use in coal mines according to claim 1, characterized in that: The shock absorbing assembly (5) includes two left and right limiting slide bars (51) fixedly mounted inside the base (1); the two limiting slide bars (51) are respectively movably sleeved on the middle parts of the two vehicle brakes (3); a buffer spring (52) is provided on the outside of the limiting slide bar (51); a first linkage block (53) is also movably sleeved on the outside of the limiting slide bar (51); the first linkage block (53) is located between the buffer spring (52) and the vehicle brake (3); The limiting sliding groove (7) is internally slidably connected to two left and right second linkage blocks (55), and a linkage arm (54) is hinged between the second linkage block (55) and the first linkage block (53) on the same side, and the top view cross section of the linkage arm (54) is arc-shaped.

7. The vehicle blocking device for use in coal mines according to claim 1, characterized in that: The adjusting assembly (9) includes a connecting seat (91) fixedly mounted in the middle of the limiting slide groove (7), the connecting seat (91) is a hollow structure, the connecting seat (91) is fixedly connected between the two sealing telescopic rods (8), a card slot (92) is provided on the front of the connecting seat (91), a sealing plate (93) is embedded in the interior of the card slot (92), the upper end of the sealing plate (93) is hinged to the connecting seat (91), and an adjusting plate (94) is embedded in the middle of the sealing plate (93), and a plurality of through holes (95) that are interconnected and evenly distributed are provided in the interior of the connecting seat (91) and the adjusting plate (94), and the sealing telescopic rod (8) is connected to the outside world through the hollow connecting seat (91) and the through holes (95).

Images