Mine car feeding device for coal mine conveying

Abstract

The utility model relates to a mine car feeding device for coal mine conveying, and solves the problem that a car frame of an existing mine car is difficult to absorb shock. Comprising a vehicle body, a vehicle frame is fixedly installed at the top of the vehicle body, a vehicle hopper is hinged to one side of the top of the vehicle frame, and rectangular plates are fixedly installed on the two sides of the bottom of the vehicle hopper; when the car hopper is subjected to impact force, the car hopper transmits the impact force to a connecting plate, the force is transmitted to a sliding block through the connecting plate, the sliding block slides in a first sliding groove and is far away from each other, then the sliding block slides to extrude a spring, the impact force is absorbed by the spring, and the sliding block slides to drive a sliding rod to move; the sliding rod drives the piston to move in the damping cylinder, so that impact force energy is converted into heat energy of the damping oil liquid, the damping oil liquid flows to generate certain damping force so as to slow down the impact force, the purpose of damping the frame is achieved, and the frame is effectively prevented from being affected by long-term impact force.

Description

Technical Field

[0001] This utility model belongs to the field of mining car technology, and specifically relates to a mining car loading device for coal mine transportation. Background Technology

[0002] Mining cars are one of the main components of transportation equipment in fully mechanized coal mining. They include a frame, wheelsets installed at the bottom of the frame, and a cargo box fixed to the top of the frame.

[0003] Chinese patent application CN202122794648.9 discloses a mining car comprising a frame, a cargo box, a first hydraulic cylinder, a second hydraulic cylinder, and an oil supply system. The cargo box is mounted on the frame, with its ends hinged to the frame. The ends of the first and second hydraulic cylinders are movably connected to the frame, and their drive shafts are movably connected to the cargo box. The oil supply system is connected to both the first and second hydraulic cylinders. The first and second hydraulic cylinders, via the drive shafts, can drive the cargo box to move up or down in a direction away from or towards the frame. This invention effectively solves the problem of poor stability of the lifting system caused by increased load on the mining car.

[0004] However, in implementing the relevant technology, the following problems were found with the above-mentioned mine car: it is difficult to dampen the frame. When coal is poured into the car hopper, it will generate impact force, which will affect the frame in the long term. In severe cases, the frame is prone to breakage, causing safety accidents. Therefore, a coal mine conveying mine car loading device is proposed. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a coal mine conveying car loading device. By absorbing impact force, it achieves the purpose of shock absorption of the car frame, effectively preventing long-term impact force from affecting the car frame, and preventing the car frame from breaking in severe cases, as well as preventing safety accidents.

[0006] This utility model is achieved through the following technical solution:

[0007] A coal mine conveying car loading device includes a car body, a frame fixedly installed on the top of the car body, a car bucket hinged to one side of the top of the frame, rectangular plates fixedly installed on both sides of the bottom of the car bucket, a first sliding groove opened at the bottom of the rectangular plate, and a slider slidably connected to the inside of the first sliding groove.

[0008] Damping cylinders are fixedly installed on both sides of the inner wall of the first slide groove. A slide rod is slidably connected inside the damping cylinder. A piston is fixedly connected to one end of the slide rod. The piston is located at one end inside the damping cylinder. The other end of the slide rod is connected to the slider. A spring is sleeved on the outer wall of the slide rod. One end of the spring is connected to the damping cylinder. The other end of the spring is connected to the two sliders.

[0009] A connecting plate is hinged to the bottom of the slider, and a U-shaped plate is hinged to the bottom end of the connecting plate. A protective plate is fixedly installed at the bottom of the U-shaped plate, and the bottom of the protective plate is in contact with the top of the frame.

[0010] Preferably, two hydraulic cylinders are hinged to one side of the bottom of the truck bed, the two hydraulic cylinders are arranged opposite each other, and the output ends of the two hydraulic cylinders are hinged to the truck frame.

[0011] Preferably, an installation groove is provided on the rear side of the inner wall of the truck bed, a sealing pipe is fixedly installed on one side of the inner wall of the installation groove, and multiple nozzles are provided on the outer wall of the sealing pipe.

[0012] Preferably, one end of the sealing tube extends through the truck bed, and a sealing cap is connected to the other end of the sealing tube via an external thread.

[0013] Preferably, the inner bottom wall of the mounting groove is provided with a second sliding groove, and a sliding plate is slidably connected inside the second sliding groove.

[0014] Preferably, the front side of the skateboard is provided with a handle, and the handle is connected to the skateboard by screws.

[0015] Preferably, the inner top wall of the mounting groove has two slots, and two insert plates are fixedly installed on the top of the slide plate, with the two insert plates interlocking with the two slots.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the truck bed is subjected to an impact, the impact force is transmitted to the connecting plate, which then transmits the force to the slider. The slider slides inside the first groove and moves away from each other. The sliding slider compresses the spring, absorbing the impact force. The sliding slider drives the sliding rod, which in turn drives the piston inside the damping cylinder. This causes the damping oil inside the damping cylinder to flow through the circular through-hole on the piston. Thus, the impact energy is converted into the heat energy of the damping oil, and the flow of the damping oil generates a certain damping force to reduce the impact force. This achieves the purpose of shock absorption for the frame, effectively preventing long-term impact from affecting the frame, preventing frame breakage in severe cases, and preventing safety accidents. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a coal mine conveying car loading device according to the present invention;

[0019] Figure 2 This is a side-view three-dimensional structural schematic diagram of a coal mine conveying car loading device according to the present invention;

[0020] Figure 3 This is a cross-sectional view of the rectangular plate in a coal mine conveying car loading device of this utility model.

[0021] Figure 4 This is a partial structural diagram of the hopper in a coal mine conveying car loading device of this utility model;

[0022] Figure 5 This is a cross-sectional structural schematic diagram of the bucket in a coal mine conveying car loading device of this utility model.

[0023] In the above attached figures: 1. Vehicle body; 2. Vehicle frame; 3. Truck bed; 4. Rectangular plate; 5. First slide groove; 6. Damping cylinder; 7. Slide rod; 8. Spring; 9. Piston; 10. Slider; 11. Connecting plate; 12. U-shaped plate; 13. Guard plate; 14. Hydraulic cylinder; 15. Mounting groove; 16. Sealing pipe; 17. Nozzle; 18. Sealing cover; 19. Second slide groove; 20. Slide plate; 21. Handle; 22. Insert plate; 23. Slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Appendix Figure 1 - Appendix Figure 5 As a preferred embodiment of the present utility model, this embodiment provides a coal mine conveying car loading device, including a car body 1, a car frame 2 fixedly installed on the top of the car body 1, a car bucket 3 hinged to one side of the top of the car frame 2, and rectangular plates 4 fixedly installed on both sides of the bottom of the car bucket 3. A first sliding groove 5 is opened at the bottom of the rectangular plate 4, and a slider 10 is slidably connected inside the first sliding groove 5.

[0026] Damping cylinders 6 are fixedly installed on both sides of the inner wall of the first slide groove 5. A slide rod 7 is slidably connected inside the damping cylinder 6. A piston 9 is fixedly connected to one end of the slide rod 7. The piston 9 is located at one end inside the damping cylinder 6. The other end of the slide rod 7 is connected to the slider 10. A spring 8 is sleeved on the outer wall of the slide rod 7. One end of the spring 8 is connected to the damping cylinder 6. The other end of the spring 8 is connected to the two sliders 10.

[0027] A connecting plate 11 is hinged to the bottom of the slider 10, and a U-shaped plate 12 is hinged to the bottom end of the connecting plate 11. A guard plate 13 is fixedly installed at the bottom of the U-shaped plate 12, and the bottom of the guard plate 13 is in contact with the top of the frame 2.

[0028] When the truck bed 3 is subjected to an impact, the impact force is transmitted to the connecting plate 11, which in turn transmits the force to the slider 10. This causes the slider 10 to slide inside the first groove 5 and move away from each other. The sliding slider 10 then compresses the spring 8, absorbing the impact force. The sliding slider 10 drives the sliding rod 7 to move, which in turn drives the piston 9 to move inside the damping cylinder 6. This causes the damping oil inside the damping cylinder 6 to flow through the circular through-hole on the piston 9. As a result, the impact force energy is converted into the heat energy of the damping oil, and the flow of the damping oil generates a certain damping force to reduce the impact force. This achieves the purpose of shock absorption for the frame 2, effectively preventing long-term impact from affecting the frame 2, preventing the frame 2 from breaking in severe cases, and preventing safety accidents.

[0029] Specifically, two hydraulic cylinders 14 are hinged to one side of the bottom of the truck bed 3. The two hydraulic cylinders 14 are arranged opposite each other, and the output ends of the two hydraulic cylinders 14 are hinged to the frame 2.

[0030] By activating the hydraulic cylinder 14, the hydraulic cylinder 14 pushes the bucket 3 to tilt, causing the coal to be dumped out of the bucket 3.

[0031] Specifically, a mounting groove 15 is provided on the rear side of the inner wall of the truck bed 3. A sealing tube 16 is fixedly installed on one side of the inner wall of the mounting groove 15. Multiple nozzles 17 are provided on the outer wall of the sealing tube 16. One end of the sealing tube 16 passes through the truck bed 3. A sealing cap 18 is connected to the outer wall of the sealing tube 16 through an external thread. A second sliding groove 19 is provided on the inner bottom wall of the mounting groove 15. A sliding plate 20 is slidably connected inside the second sliding groove 19. A handle 21 is provided on the front side of the sliding plate 20. The handle 21 is connected to the sliding plate 20 through screws. Two slots 23 are provided on the inner top wall of the mounting groove 15. Two insert plates 22 are fixedly installed on the top of the sliding plate 20. The two insert plates 22 are inserted into the two slots 23.

[0032] By holding the handle 21, pull down the slide plate 20 to make it slide inside the second slide groove 19, so that the insert plate 22 is disengaged from the slot 23. Then, by unscrewing the sealing cover 18 from the sealing tube 16 and connecting it to the sealing tube 16 through the external water pipe, water enters the nozzle 17 through the sealing tube 16 and is sprayed out through the nozzle 17 to wash the inside of the truck bed 3.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A coal mine conveying mine car loading device, comprising a car body (1), characterized in that: The top of the car body (1) is fixedly installed with a frame (2), one side of the top of the frame (2) is hingedly connected with a hopper (3), both sides of the bottom of the hopper (3) are fixedly installed with rectangular plates (4), the bottom of the rectangular plate (4) is provided with a first sliding groove (5), and the inside of the first sliding groove (5) is slidably connected with a sliding block (10). Both sides of the inner wall of the first sliding groove (5) are fixedly installed with damping cylinders (6), the inside of the damping cylinder (6) is slidably connected with a sliding rod (7), one end of the sliding rod (7) is fixedly connected with a piston (9), the piston (9) is located at one end in the inside of the damping cylinder (6), the other end of the sliding rod (7) is connected with the sliding block (10), the outer side wall of the sliding rod (7) is sleeved with a spring (8), one end of the spring (8) is connected with the damping cylinder (6), and the other end of the spring (8) is connected with the two sliding blocks (10). The bottom of the sliding block (10) is hingedly connected with a connecting plate (11), the bottom end of the connecting plate (11) is hingedly connected with a U-shaped plate (12), the bottom of the U-shaped plate (12) is fixedly installed with a guard plate (13), and the bottom of the guard plate (13) is in contact with the top of the frame (2).

2. The coal mine conveying mine car loading device according to claim 1, characterized in that: One side of the bottom of the hopper (3) is hingedly connected with two hydraulic cylinders (14), the two hydraulic cylinders (14) are oppositely arranged, and the output ends of the two hydraulic cylinders (14) are hingedly connected with the frame (2).

3. The coal mine conveying mine car loading device of claim 1, wherein: The rear side of the inner wall of the hopper (3) is provided with a mounting groove (15), one side of the inner wall of the mounting groove (15) is fixedly installed with a sealing pipe (16), and the outer side wall of the sealing pipe (16) is provided with a plurality of spray heads (17).

4. The coal mine conveying mine car loading device of claim 3, wherein: One end of the sealing pipe (16) penetrates the hopper (3), and the one end of the sealing pipe (16) is connected with a sealing cover (18) through the external thread.

5. The coal mine conveying mine car loading device of claim 3, wherein: The inner bottom wall of the mounting groove (15) is provided with a second sliding groove (19), and the inside of the second sliding groove (19) is slidably connected with a sliding plate (20).

6. The coal mine conveying mine car loading device of claim 5, wherein: The front side of the sliding plate (20) is provided with a handle (21), and the handle (21) is connected with the sliding plate (20) through screws.

7. The coal mine conveying mine car loading device of claim 6, wherein: The inner top wall of the mounting groove (15) is provided with two insertion grooves (23), and the top of the sliding plate (20) is fixedly installed with two insertion plates (22), and the two insertion plates (22) are inserted into the two insertion grooves (23).

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