Mine car connecting bolt

Abstract

The utility model relates to the technical field of mining equipment, and discloses a mine car connecting bolt which comprises a bolt body, external threads are arranged on the outer surface of the bolt body, a nut is arranged on the outer surface of the bolt body, and a limiting assembly is arranged at the top of the bolt body. The two mine cars are mutually clamped together at the connecting position, a worker uses the bolt body to penetrate through the connecting position of the two mine cars, then the nut is rotated to limit the bolt body, meanwhile, the handle is moved, the movable piece is made to be close to the connecting position of the mine cars, the threaded rod is rotated, and the outer surface of the limiting piece makes contact with the connecting position of the mine cars. The bolt body can be stably limited, the bolt body cannot jump when the mine cars are vibrated, the balls make contact with the connecting positions of the mine cars when the two mine cars turn around, and therefore the two mine cars cannot bear too large resistance when turning around.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, specifically a mine car connecting pin. Background Technology

[0002] During the transportation of locomotives in underground mine roadways, the mine car connecting pin and the vehicle connecting device are integrated to form a locking device, thereby ensuring the safety of the locomotive during operation.

[0003] According to a public notice (No. CN208602247U) of a connecting pin for a mine car, the above application uses a pull ring to drive a rotating rod to rotate along the body, thereby driving the drive block to rotate. The arc-shaped end of the drive block will generate a thrust on the sliding protrusion, thereby causing the sliding protrusion to extend out of the sliding hole, thus preventing the body from falling off the mine car connecting plate, which is highly practical.

[0004] However, in actual use, the spring inside the pin of the above-mentioned device will be compressed and reset after being subjected to vibration for a long time, which will damage the spring and cause the pin to jump when the mine car vibrates. In view of this, we propose a mine car connecting pin. Utility Model Content

[0005] The purpose of this invention is to provide a mine car connecting pin to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mine car connecting pin, comprising a pin body, an external thread formed on the outer surface of the pin body, a nut provided on the outer surface of the pin body, and a limiting component provided at the top of the pin body, the limiting component comprising:

[0007] A rotating disk is rotatably connected to the top of the pin body. A mounting component is fixedly connected to the top of the rotating disk. A handle is rotatably connected to the side of the mounting component. A limit block is fixedly connected to the outer surface of the handle.

[0008] The movable component is rotatably connected to the outer surface of the handle. The movable component has a movable groove on its front side, and a threaded rod is rotatably connected to the bottom of the inner wall of the movable groove. A limiter is threadedly connected to the outer surface of the threaded rod.

[0009] Preferably, the limiting member is disposed inside the movable groove, and the size of the limiting member is adapted to the size of the movable groove, so that the limiting member can move inside the movable groove.

[0010] Preferably, the movable part is T-shaped, and the center of the movable part corresponds to the center of the movable groove, which allows the movable part to move more effectively on the outer surface of the handle.

[0011] Preferably, the handle is U-shaped, with the center of the handle corresponding to the center of the rotating disk, which makes it easier for the operator to move the latch body.

[0012] Preferably, an auxiliary component is provided on the outer surface of the pin body. The auxiliary component includes a limiting ring, which is disposed on the outer surface of the pin body. A ball bearing is provided at the top of the limiting ring, and an anti-slip strip is fixedly connected to the bottom of the limiting ring.

[0013] Preferably, the balls are evenly distributed in a circumferential array at the top of the limiting ring, and the center of the balls corresponds to the center of the limiting ring.

[0014] Preferably, the anti-slip strip is semi-cylindrical and is evenly distributed in a circumferential array at the bottom of the limiting ring.

[0015] Compared with the prior art, this utility model provides a mine car connecting pin, which has the following beneficial effects:

[0016] 1. The mine car connecting pin is designed to prevent it from jumping out during use. The two mine cars are interlocked at their connection points. The operator inserts the pin body through the connection point of the two mine cars, then rotates the nut to limit the pin body. At the same time, the operator moves the handle to bring the movable part closer to the connection point of the mine cars, and then rotates the threaded rod. This causes the limiting part to move inside the movable groove, so that the outer surface of the limiting part contacts the connection point of the mine cars. This ensures that the pin body is stably limited and prevents it from jumping out when the mine cars are subjected to vibration.

[0017] 2. The mine car connecting pin has a limiting ring fitted onto its outer surface before the nut is installed. This allows the outer surface of the nut to contact the anti-slip strip at the bottom of the limiting ring, thus better limiting the pin at the mine car connection. Additionally, when the two mine cars turn, the ball bearings contact the connection, preventing excessive resistance during turns and ensuring a more stable pin position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional left-side structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a lower view schematic diagram of the auxiliary component of this utility model;

[0021] Figure 4This is a schematic diagram of the limiting component structure of this utility model.

[0022] In the diagram: 1. Pin body; 2. External thread; 3. Nut; 4. Limiting component; 401. Rotating disk; 402. Mounting part; 403. Handle; 404. Limiting block; 405. Moving part; 406. Moving groove; 407. Threaded rod; 408. Limiting component; 5. Auxiliary component; 501. Limiting ring; 502. Anti-slip strip; 503. Ball bearing. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: a mine car connecting pin, including a pin body 1, an external thread 2 on the outer surface of the pin body 1, a nut 3 on the outer surface of the pin body 1, and a limit component 4 on the top of the pin body 1. The limit component 4 includes a rotating disk 401, a mounting part 402, a handle 403, a limit block 404, a movable part 405, a movable groove 406, a threaded rod 407, and a limit member 408.

[0024] In this embodiment of the utility model, a rotating disk 401 is rotatably connected to the top of the pin body 1. A mounting member 402 is fixedly connected to the top of the rotating disk 401, and a handle 403 is rotatably connected to the side of the mounting member 402. The handle 403 is U-shaped, and the center of the handle 403 corresponds to the center of the rotating disk 401, which makes it easier for the operator to move the pin body 1. A limit block 404 is fixedly connected to the outer surface of the handle 403, and a movable member 405 is rotatably connected to the outer surface of the handle 403. The movable member 405 is T-shaped. The center of the moving part 405 corresponds to the center of the movable groove 406, which allows the moving part 405 to move better on the outer surface of the handle 403. The moving part 405 has a movable groove 406 on its front side. A threaded rod 407 is rotatably connected to the bottom of the inner wall of the movable groove 406. A limiting member 408 is threadedly connected to the outer surface of the threaded rod 407. The limiting member 408 is set inside the movable groove 406. The size of the limiting member 408 is adapted to the size of the movable groove 406, which allows the limiting member 408 to move inside the movable groove 406.

[0025] Meanwhile, an auxiliary component 5 is provided on the outer surface of the pin body 1. The auxiliary component 5 includes a limiting ring 501, which is located on the outer surface of the pin body 1. A ball bearing 503 is provided on the top of the limiting ring 501. The ball bearings 503 are evenly distributed in a circumferential array on the top of the limiting ring 501, and the center of the ball bearings 503 corresponds to the center of the limiting ring 501. An anti-slip strip 502 is fixedly connected to the bottom of the limiting ring 501. The anti-slip strip 502 is semi-cylindrical and is evenly distributed in a circumferential array on the limiting ring. At the bottom of 501, the limiting ring 501 can be fitted onto the outer surface of the pin body 1 before the nut 3 is installed. This allows the outer surface of the nut 3 to contact the anti-slip strip 502 at the bottom of the limiting ring 501, thus allowing the pin body 1 to be better limited at the connection of the mine cars. At the same time, when the two mine cars turn, the ball bearing 503 contacts the connection of the mine cars, so that the two mine cars will not encounter excessive resistance when turning, and the pin body 1 will be more stably limited.

[0026] In this invention, when in use, the two mine cars are interlocked at their connection points. The worker inserts the pin body 1 through the connection point of the two mine cars, then rotates the nut 3 to limit the pin body 1. At the same time, the handle 403 is moved to bring the movable part 405 close to the connection point of the mine cars. Then, the threaded rod 407 is rotated, which causes the limiting part 408 to move inside the movable groove 406, so that the outer surface of the limiting part 408 contacts the connection point of the mine cars. This allows the pin body 1 to be stably limited and prevents the pin body 1 from jumping out when the mine cars are vibrated.

[0027] Furthermore, before installing the nut 3, the limiting ring 501 is fitted onto the outer surface of the pin body 1, and then the nut 3 is installed. This allows the outer surface of the nut 3 to contact the anti-slip strip 502 provided at the bottom of the limiting ring 501, thereby allowing the pin body 1 to be better limited at the connection of the mine cars. At the same time, when the two mine cars turn, the ball bearing 503 contacts the connection of the mine cars, thereby preventing the two mine cars from experiencing excessive resistance when turning, and making the pin body 1 more stably limited.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A mine car connecting pin, comprising a pin body (1), wherein the outer surface of the pin body (1) is provided with an external thread (2), and a nut (3) is provided on the outer surface of the pin body (1), characterized in that: The top of the pin body (1) is provided with a limiting component (4), the limiting component (4) including: A rotating disk (401) is rotatably connected to the top of the pin body (1). A mounting part (402) is fixedly connected to the top of the rotating disk (401). A handle (403) is rotatably connected to the side of the mounting part (402). A limit block (404) is fixedly connected to the outer surface of the handle (403). The movable part (405) is rotatably connected to the outer surface of the handle (403). The movable part (405) has a movable groove (406) on its front side. A threaded rod (407) is rotatably connected to the bottom of the inner wall of the movable groove (406). A limiter (408) is threadedly connected to the outer surface of the threaded rod (407).

2. The mine car connecting pin according to claim 1, characterized in that: The limiting member (408) is disposed inside the movable groove (406), and the size of the limiting member (408) is adapted to the size of the movable groove (406).

3. A mine car connecting pin according to claim 1, characterized in that: The movable part (405) is T-shaped, and the center of the movable part (405) corresponds to the center of the movable groove (406).

4. A mine car connecting pin according to claim 1, characterized in that: The handle (403) is U-shaped, and the center of the handle (403) corresponds to the center of the rotating disk (401).

5. A mine car connecting pin according to claim 1, characterized in that: The outer surface of the pin body (1) is provided with an auxiliary component (5). The auxiliary component (5) includes a limiting ring (501). The limiting ring (501) is located on the outer surface of the pin body (1). A ball bearing (503) is provided on the top of the limiting ring (501). An anti-slip strip (502) is fixedly connected to the bottom of the limiting ring (501).

6. A mine car connecting pin according to claim 5, characterized in that: The balls (503) are evenly distributed in a circular array at the top of the limiting ring (501), and the center of the balls (503) corresponds to the center of the limiting ring (501).

7. A mine car connecting pin according to claim 5, characterized in that: The anti-slip strip (502) is arranged in a semi-cylindrical shape, and the anti-slip strip (502) is evenly distributed in a circumferential array at the bottom of the limiting ring (501).

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