A coupling mechanism for a mine car

Abstract

This utility model relates to the technical field of auxiliary mechanisms for mining equipment, and discloses a connecting mechanism for mine cars. The connecting mechanism includes a mine car, a locking component fixedly connected to the side of the mine car, and a connecting component fixedly connected to the side of the mine car away from the locking component. A limit pin is provided on the upper surface of the connecting component, a handle is provided on the upper surface of the limit pin, and a limit assembly is provided on the outer surface of the limit pin. To make the connection between the two mine cars tighter, the locking component is inserted into the connecting component. When the worker passes the limit pin through the limit hole on the upper surface of the connecting component, the ball bearing is compressed, causing the strong spring to contract, thus allowing the ball bearing to retract into the mounting groove. After the limit pin is fully inserted into the connecting component, the mounting block is positioned below the connecting component. This causes the elastic force of the strong spring to push the mounting block out of the mounting groove, allowing the outer surface of the ball bearing to contact the bottom of the connecting component, making the mine car more stable when turning.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary mechanisms for mining equipment, specifically a connecting mechanism for mining cars. Background Technology

[0002] Mining cars are narrow-gauge railway transport vehicles used to transport bulk materials such as coal, ore and waste rock in mines. The connection between mining cars usually uses a mining car connecting mechanism, which is also called a coupler or connector.

[0003] According to a public notice (Announcement No.: CN218431255U) regarding a connecting mechanism for underground mine cars, the above application describes a mechanism that automatically connects two underground mine cars by setting a locking head and a locking sleeve to cooperate with each other. After the two support members on the locking head are inserted into the sleeve, they quickly open due to the spring rebound force, so that the locking head and the locking sleeve automatically connect, thereby realizing the automatic connection of the two mine cars. This improves the connection speed of the mine cars and reduces the workload of the processing personnel. At the same time, a bidirectional electric push rod pushes the push block to squeeze the support members, causing the two support members to retract and quickly detach from the sleeve, thereby realizing the automatic separation of the two mine cars.

[0004] However, in actual use, the above-mentioned equipment will be subjected to excessive pressure between the chuck and the sleeve when the mine car turns, which may cause the two mine cars to break, thus making the mine car unable to transport effectively; in view of this, we propose a connecting mechanism for mine cars. Utility Model Content

[0005] The purpose of this invention is to provide a connecting mechanism for mining cars to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connecting mechanism for a mine car, comprising a mine car, a locking member fixedly connected to the side of the mine car, a connecting member fixedly connected to the side of the mine car away from the locking member, a limiting pin provided on the upper surface of the connecting member, a handle provided on the upper surface of the limiting pin, and a limiting component provided on the outer surface of the limiting pin, the limiting component comprising:

[0007] The mounting groove is formed on the outer surface of the limiting pin. A strong spring is fixedly connected to the inner wall side of the mounting groove. A mounting block is fixedly connected to the end of the strong spring. A ball bearing is provided on the side of the mounting block.

[0008] Preferably, the size of the mounting block is adapted to the size of the mounting groove, and the mounting block is disposed inside the mounting groove, which allows the mounting block to move inside the mounting groove.

[0009] Preferably, the center of the ball corresponds to the center of the mounting block, and the size of the ball is adapted to the size of the mounting groove, so that the ball can be retracted into the mounting groove.

[0010] Preferably, the mounting grooves are evenly distributed in a circumferential array on the outer surface of the limiting pin, and the size of the mounting grooves is adapted to the size of the strong spring, which allows the strong spring to extend and retract inside the mounting grooves.

[0011] Preferably, the outer surface of the limiting pin is provided with an auxiliary component, the auxiliary component including a fixing member, the fixing member being fixedly connected to the outer surface of the limiting pin, the inner wall side of the fixing member being rotatably connected to a rotating member, and the outer surface of the rotating member being threadedly connected to a limiting block.

[0012] Preferably, the limiting block has an isosceles trapezoidal protrusion on its side, and the limiting block is disposed inside the fixing member.

[0013] Preferably, the rotating component is composed of a threaded rod fixedly connected to the bottom of the rotating block, and the center of the rotating component corresponds to the center of the inner wall of the fixed component.

[0014] Compared with the prior art, this utility model provides a connecting mechanism for mining cars, which has the following advantages:

[0015] 1. The mine car uses a connecting mechanism. To make the connection between the two mine cars tighter, the locking parts of the two mine cars are aligned with the connecting parts. The locking parts are then inserted into the connecting parts. At this time, the operator inserts the bottom of the limiting pin through the connecting parts and the locking parts. When the limiting pin passes through the limiting hole on the upper surface of the connecting parts, the ball bearings are compressed, causing the strong spring to contract. This allows the ball bearings to retract into the mounting groove. After the limiting pin is fully inserted into the connecting parts, the mounting block is positioned below the connecting parts. This causes the elastic force of the strong spring to push the mounting block out of the mounting groove, while simultaneously exposing the ball bearings. This allows the outer surface of the ball bearings to contact the bottom of the connecting parts, making the connection between the two mine cars tighter and more stable when the mine cars are turning.

[0016] 2. The mine car uses a connecting mechanism. To prevent the pin from jumping out when the mine car vibrates, after the limit pin is fully inserted into the connector, the bottom of the fixing part contacts the upper surface of the connector. Then, the operator rotates the rotating part to move the limit block towards the connector. This causes the isosceles trapezoidal protrusion on the side of the limit block to contact the outer surface of the connector, thereby increasing the friction between the limit block and the connector. This prevents the limit pin from jumping out when the mine car vibrates. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional left-side structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the explosive structure of the limiting pin of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting pin structure from below.

[0021] In the diagram: 1. Mine car; 2. Clip; 3. Connector; 4. Limit pin; 5. Handle; 6. Limiting component; 601. Mounting slot; 602. Strong spring; 603. Mounting block; 604. Ball bearing; 7. Auxiliary component; 701. Fixing component; 702. Rotating component; 703. Limiting block. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a connecting mechanism for a mine car, including a mine car 1, a locking piece 2 fixedly connected to the side of the mine car 1, a connecting piece 3 fixedly connected to the side of the mine car 1 away from the locking piece 2, a limiting pin 4 provided on the upper surface of the connecting piece 3, a handle 5 provided on the upper surface of the limiting pin 4, and a limiting component 6 provided on the outer surface of the limiting pin 4, the limiting component 6 including a mounting groove 601, a strong spring 602, a mounting block 603, and a ball bearing 604.

[0023] In this embodiment of the present invention, the mounting groove 601 is formed on the outer surface of the limiting pin 4. The mounting grooves 601 are evenly distributed in a circumferential array on the outer surface of the limiting pin 4. The size of the mounting groove 601 is adapted to the size of the strong spring 602, which allows the strong spring 602 to extend and retract inside the mounting groove 601. The strong spring 602 is fixedly connected to the inner wall side of the mounting groove 601. The end of the strong spring 602 is fixedly connected to the mounting block 603. The size of the mounting block 603 is adapted to the size of the mounting groove 601. The mounting block 603 is disposed inside the mounting groove 601, which allows the mounting block 603 to move inside the mounting groove 601. A ball bearing 604 is provided on the side of the mounting block 603. The center of the ball bearing 604 corresponds to the center of the mounting block 603. The size of the ball bearing 604 is adapted to the size of the mounting groove 601, which allows the ball bearing 604 to be retracted into the mounting groove 601.

[0024] Meanwhile, an auxiliary component 7 is provided on the outer surface of the limiting pin 4. The auxiliary component 7 includes a fixing member 701, which is fixedly connected to the outer surface of the limiting pin 4. A rotating member 702 is rotatably connected to the inner wall of the fixing member 701. The rotating member 702 is composed of a threaded rod fixedly connected to the bottom of a rotating block. The center of the rotating member 702 corresponds to the center of the inner wall of the fixing member 701. A limiting block 703 is threadedly connected to the outer surface of the rotating member 702. An isosceles trapezoidal protrusion is provided on the side of the limiting block 703. 703 is set inside the fixing part 701. This allows the bottom of the fixing part 701 to contact the upper surface of the connecting part 3 after the limiting pin 4 is fully inserted into the connecting part 3. Then, the operator can rotate the rotating part 702 to move the limiting block 703 toward the connecting part 3. This will cause the isosceles trapezoidal protrusion on the side of the limiting block 703 to contact the outer surface of the connecting part 3, thereby increasing the friction between the limiting block 703 and the connecting part 3. This prevents the limiting pin 4 from jumping out when the mine car 1 shakes.

[0025] In this invention, during use, the locking pieces 2 of the two mine cars 1 are aligned with the connecting pieces 3, and the locking pieces 2 are inserted into the connecting pieces 3. At this time, the worker uses the bottom of the limiting pin 4 to pass through the connecting pieces 3 and the locking pieces 2. When the limiting pin 4 passes through the limiting hole set on the upper surface of the connecting pieces 3, the ball 604 is squeezed, causing the strong spring 602 to contract, thereby allowing the ball 604 to be retracted into the mounting groove 601. After the limiting pin 4 is fully inserted into the connecting pieces 3, the mounting block 603 will be located below the connecting pieces 3. This will cause the elastic force of the strong spring 602 to push the mounting block 603 out of the mounting groove 601, while the ball 604 is exposed. This allows the outer surface of the ball 604 to contact the bottom of the connecting pieces 3, making the connection between the two mine cars 1 tighter and making the mine cars 1 more stable when turning.

[0026] Furthermore, after the limiting pin 4 is fully inserted into the connector 3, the bottom of the fixing part 701 is brought into contact with the upper surface of the connector 3. Then, the operator rotates the rotating part 702 to move the limiting block 703 toward the connector 3. This will cause the isosceles trapezoidal protrusion on the side of the limiting block 703 to come into contact with the outer surface of the connector 3, thereby increasing the friction between the limiting block 703 and the connector 3. This prevents the limiting pin 4 from jumping out when the mine car 1 shakes.

[0027] 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 connecting mechanism for a mine car, comprising a mine car (1), wherein a locking member (2) is fixedly connected to the side of the mine car (1), and a connecting member (3) is fixedly connected to the side of the mine car (1) away from the locking member (2), wherein a limiting pin (4) is provided on the upper surface of the connecting member (3), and a handle (5) is provided on the upper surface of the limiting pin (4), characterized in that: The outer surface of the limiting pin (4) is provided with a limiting component (6), the limiting component (6) including: The mounting groove (601) is located on the outer surface of the limiting pin (4). A strong spring (602) is fixedly connected to the inner wall side of the mounting groove (601). A mounting block (603) is fixedly connected to the end of the strong spring (602). A ball bearing (604) is provided on the side of the mounting block (603).

2. The connecting mechanism for a mining car according to claim 1, characterized in that: The size of the mounting block (603) is adapted to the size of the mounting groove (601), and the mounting block (603) is disposed inside the mounting groove (601).

3. The connecting mechanism for a mining car according to claim 1, characterized in that: The center of the ball (604) corresponds to the center of the mounting block (603), and the size of the ball (604) is adapted to the size of the mounting groove (601).

4. The connecting mechanism for a mine car according to claim 1, characterized in that: The mounting grooves (601) are evenly distributed in a circular array on the outer surface of the limiting pin (4), and the size of the mounting grooves (601) is adapted to the size of the strong spring (602).

5. A connecting mechanism for a mining car according to claim 1, characterized in that: The outer surface of the limiting pin (4) is provided with an auxiliary component (7), the auxiliary component (7) includes a fixing member (701), the fixing member (701) is fixedly connected to the outer surface of the limiting pin (4), the inner wall side of the fixing member (701) is rotatably connected to a rotating member (702), and the outer surface of the rotating member (702) is threadedly connected to a limiting block (703).

6. A connecting mechanism for a mining car according to claim 5, characterized in that: The limiting block (703) is provided with an isosceles trapezoidal protrusion on its side, and the limiting block (703) is located inside the fixing member (701).

7. A connecting mechanism for a mine car according to claim 5, characterized in that: The rotating component (702) is composed of a threaded rod fixedly connected to the bottom of the rotating block, and the center of the rotating component (702) corresponds to the center of the inner wall of the fixed component (701).

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