Mining-grade car stopping device

Abstract

The utility model discloses a mining car stopping device, which belongs to the technical field of coal mine safety and comprises a base, a bearing frame is fixedly connected to the bottom of the base, a rotating shaft is rotatably connected to the inner surface of the base, a collision baffle is movably sleeved on the outer surface of the rotating shaft, and a hydraulic cylinder is slidably connected to the inner surface of the bearing frame. A positioning plate is fixedly connected to the outer surface of the base, and a damper is installed on the side, close to the base, of the positioning plate. According to the mining grade car stopping device, the hydraulic air cylinder is started to drive the collision head baffle to rotate and be in lap joint with the rail, then a mine car is stopped through the combined action of the damper and the collision head baffle, and the mine car is prevented from entering a parking lot or a section by mistake as much as possible; the miniature air pump receives signals and releases airflow to the mine car through the air inlet pipe and the exhaust pipe, the airflow can reduce the speed of the mine car in advance, and the mine car with the too high speed is prevented from impacting and damaging parts such as the collision head baffle as much as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine safety, and in particular relates to a mine-grade vehicle blocking device. Background Art

[0002] The car blocker, also known as the parking device, is one of the important facilities of the coal mine transportation system. It is a device to prevent the car from running away. It is generally installed at the top of the slope. On the one hand, it limits the mine car to stay in the specified position, and on the other hand, it is used to prevent the occurrence of runaway accidents. It is often used in conjunction with pushers, dumpers, climbers, cages, and dispatching winches.

[0003] Common car blocking devices are mostly used to limit the position of mine cars. Car blockers are also used to intercept mine cars after their speed has dropped. However, some mine cars may be driven too fast due to braking and other reasons. When a mine car with too high a speed collides with a car blocking device, important parts such as the bumper plate in the car blocking device may be damaged. Existing car blockers often lack safety protection measures to intercept mine cars with too high a speed.

[0004] In order to solve the above problems, a mining-grade vehicle-blocking device is proposed in the present application. Summary of the invention

[0005] In view of the problems in the related technology, the utility model proposes a mining-grade vehicle-blocking device to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mining-grade car-blocking device comprises a base, the bottom of the base is fixedly connected to a load-bearing frame, the inner surface of the base is rotatably connected to a rotating shaft, the outer surface of the rotating shaft is movably sleeved with a head baffle, the inner surface of the load-bearing frame is slidably connected to a hydraulic cylinder, the telescopic end of the hydraulic cylinder is hinged to the outer surface of the head baffle, the outer surface of the base is fixedly connected to a positioning plate, a damper is installed on the side of the positioning plate close to the base, the telescopic end of the damper overlaps the outer surface of the head baffle, a micro air pump is installed on the side of the base close to the positioning plate, an air intake pipe is installed on the input end of the micro air pump, an exhaust pipe is installed on the output end of the micro air pump, a round block is fixedly connected to the outer surface of the head baffle, the exhaust pipe is fixedly inserted in the inner cavity of the round block, a load-bearing rod is detachably installed on the top of the base, and a radar speed meter is rotatably connected to the top of the load-bearing rod.

[0008] A diffusion cover is fixedly connected to the side of the round block away from the micro air pump, and the diffusion cover is connected to the exhaust pipe. By setting the diffusion cover, the conical design of the diffusion cover can increase the contact area between the airflow inside the exhaust pipe and the mine car, which is convenient for improving the deceleration effect of the airflow inside the exhaust pipe on the mine car.

[0009] A return spring is wound around the outer surface of the rotating shaft, and the telescopic end of the return spring is fixedly connected to the outer surface of the collision baffle. By setting the return spring, the return spring is an element that can store and release mechanical energy. When the return spring and the damper are used in combination, the return spring can provide a return force to facilitate the collision baffle to gradually return to its original position after the impact ends.

[0010] A load-bearing disc is fixedly connected to the inner surface of the load-bearing rod, a servo motor is installed at the bottom of the load-bearing disc, a drive shaft is welded to the output end of the servo motor, and the top of the drive shaft is fixedly connected to the bottom of the radar speed meter. By setting the load-bearing disc servo motor and the drive shaft, starting the servo motor can drive the radar speed meter to rotate through the drive shaft, which is convenient for adjusting the horizontal working angle of the radar speed meter and facilitating the radar speed meter to measure the speed of mine cars in different areas.

[0011] A threaded rod is welded to the bottom of the load-bearing rod, and the threaded rod is threadedly connected to the inner cavity of the base. By setting the threaded rod, the operator can drive the threaded rod to move upward by rotating the load-bearing rod counterclockwise. After the threaded rod is completely separated from the inside of the base, the operator can quickly remove and replace the load-bearing rod and the radar speed meter as a whole and carry out inspection and replacement.

[0012] An elastic airbag is provided on the inner surface of the load-bearing frame, and a valve core is installed in the inner cavity of the elastic airbag. By arranging the elastic airbag and the valve core, the elastic airbag can absorb the impact force when the hydraulic cylinder hits the inner wall of the load-bearing frame as much as possible, and try to avoid the elastic airbag from being damaged due to excessive movement speed. At the same time, the expansion degree of the elastic airbag can be adjusted through the valve core.

[0013] In summary, the technical effects and advantages of the utility model are as follows:

[0014] 1. The mining-grade car-blocking device starts the hydraulic cylinder to drive the bumper plate to rotate and overlap on the track, and then intercepts the mine car through the joint action of the damper and the bumper plate, so as to avoid the mine car from mistakenly entering the parking lot or section. At the same time, when the load-bearing rod detects that the speed of the mine car is too fast, the micro air pump receives the signal and releases airflow to the mine car through the intake pipe and exhaust pipe, and the airflow can assist the bumper plate to reduce the speed of the mine car, so as to avoid the mine car with too high speed from colliding and damaging the bumper plate and other parts.

[0015] 2. The mine-grade car-blocking device can start the diffusion cover to drive the radar speed meter to rotate through the drive shaft. After the horizontal working angle of the radar speed meter changes, the radar speed meter can detect the speed of the mine car in different areas, and the load-bearing rod can be gradually detached from the top of the base by rotating counterclockwise, which is convenient for the staff to quickly remove the load-bearing rod and the radar speed meter as a whole and carry out inspection and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model from another angle;

[0018] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the load-bearing rod, radar speed meter and related parts of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the load-bearing frame, hydraulic cylinder and related parts of the utility model.

[0020] In the figure:

[0021] 1. Base; 2. Load-bearing frame; 3. Rotating shaft; 4. Bumper plate; 5. Hydraulic cylinder; 6. Positioning plate; 7. Damper; 8. Micro air pump; 9. Inlet pipe; 10. Exhaust pipe; 11. Round block; 12. Load-bearing rod; 13. Radar speed meter; 14. Diffuser cover; 15. Reset spring; 16. Load-bearing disc; 17. Servo motor; 18. Drive shaft; 19. Threaded rod; 20. Elastic airbag; 21. Valve core. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-2 A mining-grade car-blocking device includes a base 1, a load-bearing frame 2 is fixedly connected to the bottom of the base 1, the inner surface of the base 1 is rotatably connected to a rotating shaft 3, and a head baffle 4 is movably sleeved on the outer surface of the rotating shaft 3; a hydraulic cylinder 5 is slidably connected to the inner surface of the load-bearing frame 2, and the telescopic end of the hydraulic cylinder 5 is hinged to the outer surface of the head baffle 4. When the hydraulic cylinder 5 extends outward, it can drive the head baffle 4 to rotate along the rotating shaft 3, and then the head baffle 4 is forced to gradually move away from the track on the surface of the base 1; when the head baffle 4 needs to be used to block the mine car, the hydraulic cylinder 5 is started to retract inward until the outer surface of the head baffle 4 touches the track.

[0024] Reference Figure 1-2 A positioning plate 6 is fixedly connected to the outer surface of the base 1, and a damper 7 is installed on the side of the positioning plate 6 close to the base 1. The telescopic end of the damper 7 overlaps the outer surface of the head baffle 4. After the head baffle 4 contacts the mine car, the damper 7 on the side of the head baffle 4 away from the mine car can reduce the overall impact force of the mine car and the head baffle 4, which is convenient for gradually intercepting the mine car, avoiding the mine car from mistakenly entering the parking lot or section, and avoiding the occurrence of running car accidents.

[0025] Reference Figure 1-2A micro air pump 8 is installed on one side of the base 1 close to the positioning plate 6, an air intake pipe 9 is installed at the input end of the micro air pump 8, an exhaust pipe 10 is installed at the output end of the micro air pump 8, a round block 11 is fixedly connected to the outer surface of the bumper baffle 4, and the exhaust pipe 10 is fixedly inserted in the inner cavity of the round block 11. A load-bearing rod 12 is detachably installed on the top of the base 1, and a radar speed meter 13 is rotatably connected to the top of the load-bearing rod 12. The radar speed meter 13 can detect the speed of the mine car in the track. When the speed of the mine car exceeds the maximum value preset by the radar speed meter 13, the radar speed meter 13 sends a signal and controls the micro air pump 8 to start. At the same time, the circuit connection mode of the radar speed meter 13 and the micro air pump 8 can be adjusted according to actual conditions. After the micro air pump 8 is started, the airflow can be released to one side of the mine car through the air intake pipe 9 and the exhaust pipe 10. The released airflow can reduce the speed of the mine car in advance, and try to avoid the mine car with too fast speed from colliding and damaging the bumper baffle 4 and other parts.

[0026] Reference Figure 1 A diffusion cover 14 is fixedly connected to the side of the round block 11 away from the micro air pump 8, and the diffusion cover 14 is connected to the exhaust pipe 10. The outer surface radius of the side of the diffusion cover 14 away from the round block 11 is larger than the outer surface radius of the side of the diffusion cover 14 close to the round block 11, so that the gas released by the exhaust pipe 10 can increase the effective area through the diffusion cover 14, so as to further reduce the speed of the mine car.

[0027] Reference Figure 1-2 A return spring 15 is wound around the outer surface of the rotating shaft 3, and the telescopic length of the return spring 15 is less than the length of the rotating shaft 3; the telescopic end of the return spring 15 is fixedly connected to the outer surface of the head baffle 4, and when the return spring 15 and the damper 7 are used in conjunction with each other, the damper 7 reduces the impact force of the head baffle 4 while the return spring 15 is compressed; after the impact is over, the return spring 15 can provide a return force to facilitate the head baffle 4 to gradually return to its original position after the impact is over.

[0028] Reference Figure 3 A load-bearing disc 16 is fixedly connected to the inner surface of the load-bearing rod 12, and a servo motor 17 is installed at the bottom of the load-bearing disc 16. The servo motor 17 uses an external power supply and is installed at the center of the bottom of the load-bearing disc 16; a drive shaft 18 is welded to the output end of the servo motor 17, and the drive shaft 18 is rotatably connected to the inner cavity of the load-bearing disc 16. The top of the drive shaft 18 is fixedly connected to the bottom of the radar speed meter 13. Starting the servo motor 17 can drive the radar speed meter 13 to rotate through the drive shaft 18. After the horizontal working angle is adjusted, the radar speed meter 13 can detect the speed of mine cars in different areas.

[0029] Reference Figure 1 and Figure 3A threaded rod 19 is welded at the bottom of the load-bearing rod 12, and the threaded rod 19 is fixedly connected to the central part of the bottom of the load-bearing rod 12; the threaded rod 19 is threadedly connected to the inner cavity of the base 1, and the load-bearing rod 12 rotates under force to drive the threaded rod 19 to rotate in the same direction. The operator rotates the load-bearing rod 12 counterclockwise to drive the threaded rod 19 to gradually separate from the inside of the base 1, which is convenient for the operator to quickly dismantle and replace the load-bearing rod 12 and the radar speed meter 13 as a whole.

[0030] Reference Figure 2 and Figure 4 An elastic airbag 20 is provided on the inner surface of the load-bearing frame 2. After the elastic airbag 20 is fully filled with gas, the expanded elastic airbag 20 can absorb the impact force of the hydraulic cylinder 5 when it moves, and try to avoid the hydraulic cylinder 5 from moving quickly and hitting the inner wall of the load-bearing frame 2 to cause damage. A valve core 21 is installed in the inner cavity of the elastic airbag 20. The elastic airbag 20 is fixedly inserted in the inner cavity of the load-bearing frame 2. The operator can adjust the expansion degree of the elastic airbag 20 through the valve core 21.

[0031] Working principle: First, when the bumper baffle 4 is not in contact with the track, the hydraulic cylinder 5 is in a state of outward extension and retraction. When the mine car needs to be intercepted, the hydraulic cylinder 5 is started to contract and drive the bumper baffle 4 to rotate along the rotating axis 3 and overlap the track, and then the speed of the mine car is detected by the radar speed meter 13 above the base 1. When the speed of the mine car exceeds the maximum setting value of the radar speed meter 13, the micro air pump 8 receives the signal and releases airflow to the mine car through the intake pipe 9 and the exhaust pipe 10, and the airflow can reduce the speed of the mine car in advance, and try to avoid the bumper baffle 4 with too fast speed to hit and damage the bumper baffle 4 and other parts. When the mine car touches the bumper baffle 4, the base 1 as a whole intercepts the mine car under the joint action of the damper 7 and the bumper baffle 4, and try to avoid the mine car from mistakenly entering the parking lot or section, and try to avoid sports car accidents.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mining-grade vehicle-blocking device, comprising a base (1), characterized in that: The bottom of the base (1) is fixedly connected to a load-bearing frame (2); the inner surface of the base (1) is rotatably connected to a rotating shaft (3); the outer surface of the rotating shaft (3) is movably sleeved with a bumper baffle (4); the inner surface of the load-bearing frame (2) is slidably connected to a hydraulic cylinder (5); the telescopic end of the hydraulic cylinder (5) is hinged to the outer surface of the bumper baffle (4); the outer surface of the base (1) is fixedly connected to a positioning plate (6); a damper (7) is installed on a side of the positioning plate (6) close to the base (1); the telescopic end of the damper (7) is hinged to the bumper The outer surface of the head baffle (4) is overlapped, a micro air pump (8) is installed on the side of the base (1) close to the positioning plate (6), an air intake pipe (9) is installed at the input end of the micro air pump (8), and an exhaust pipe (10) is installed at the output end of the micro air pump (8), a round block (11) is fixedly connected to the outer surface of the head baffle (4), and the exhaust pipe (10) is fixedly inserted in the inner cavity of the round block (11), and a load-bearing rod (12) is detachably installed on the top of the base (1), and a radar speed meter (13) is rotatably connected to the top of the load-bearing rod (12).

2. A mining-grade vehicle-blocking device according to claim 1, characterized in that: A diffusion cover (14) is fixedly connected to the side of the round block (11) away from the micro air pump (8), and the diffusion cover (14) is in communication with the exhaust pipe (10).

3. A mining-grade vehicle-blocking device according to claim 1, characterized in that: A return spring (15) is wound around the outer surface of the rotating shaft (3), and the telescopic end of the return spring (15) is fixedly connected to the outer surface of the collision baffle (4).

4. A mining-grade vehicle-blocking device according to claim 1, characterized in that: A load-bearing disc (16) is fixedly connected to the inner surface of the load-bearing rod (12), a servo motor (17) is installed at the bottom of the load-bearing disc (16), a drive shaft (18) is welded to the output end of the servo motor (17), and the top end of the drive shaft (18) is fixedly connected to the bottom of the radar speed meter (13).

5. A mining-grade vehicle-blocking device according to claim 1, characterized in that: A threaded rod (19) is welded to the bottom of the load-bearing rod (12), and the threaded rod (19) is threadedly connected to the inner cavity of the base (1).

6. A mining-grade vehicle-blocking device according to claim 1, characterized in that: An elastic airbag (20) is provided on the inner surface of the load-bearing frame (2), and a valve core (21) is installed in the inner cavity of the elastic airbag (20).

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