Auxiliary coupling device for mine cars

CN224915920UActive Publication Date: 2026-10-30YUWU COAL CO LTD OF SHANXI LUAN GRP
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Patent Information

Application Number
CN202522359450.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-06
Publication Date
2026-10-30
Estimated Expiration
2035-11-06

AI Technical Summary

Technical Problem

传统矿车连接装置的连接头多与主体框架采用一体化焊接或固定螺栓连接,高度无法调节,由于矿山作业中使用的矿车型号多样,不同型号矿车的连接接口高度差异大,固定高度的连接头仅能适配单一型号矿车,当需要连接不同高度矿车时,必须更换整个连接装置,不仅增加设备采购成本,还导致矿车停运等待时间延长,影响矿山运输效率,因此,需对上述问题进行解决

Benefits of technology

[0010]与现有技术相比,本实用新型的有益效果是:在本实用新型中,通过碰头体与固定碰头螺丝的配合,能够将碰头体牢固固定在连接槽内,防止矿车运行时碰头体松动或脱落,保证碰撞缓冲效果稳定;通过限位螺栓和螺纹孔的配合,能够实现连接头在不同位置的固定,确保调节后连接头位置稳定,不易在受力时滑动;通过沉头栓的设置,能够实现连接头的高度调节,适配不同高度的矿车连接需求,调节过程平稳省力,解决了连接头高度固定,无法适配不同高度矿车连接,需更换装置的问题。

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Abstract

The utility model discloses a kind of mine car auxiliary connecting devices, it is related to mine car auxiliary connecting tool technical field, including main body frame, main body frame bottom is provided with mounting slot, two connecting slots are symmetrically provided in one side of main body frame, two connecting slots are all inserted with head body, fixed block is fixedly connected in the top of main body frame, the rib plate is symmetrically welded in the both sides of fixed block, connecting head is slidably arranged in fixed block, height adjusting component is equipped in the bottom of connecting head, the utility model is fixed by the setting of fixed head screw, head body can be firmly fixed in connecting slot, prevent head body from loosening or falling off when mine car runs;By the setting of limiting bolt, the fixing of connecting head in different positions can be realized;By the setting of countersunk bolt, the height adjustment of connecting head can be realized, the connecting demand of different height mine car is adapted, the adjustment process is stable and labor-saving, solve the height fixing of connecting head, different height mine car connection cannot be adapted, need to replace the problem of device.
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Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary connection tools for mining cars, and in particular to an auxiliary connection device for mining cars. Background Technology

[0002] In the mining transportation system, the auxiliary connection device for mining cars is a core component to ensure the safe and efficient operation of mining car groups. It needs to achieve stable docking between different mining cars and adapt to various working conditions in the complex mining environment. The height adjustment function is one of the key performance characteristics of the connection device. Traditional mine car connecting devices typically use integrated welding or fixed bolts to connect the connectors to the main frame, which cannot be adjusted in height. Since there are various models of mine cars used in mining operations, the connection interface heights of different models vary greatly. Fixed-height connectors can only be used with a single model of mine car. When it is necessary to connect mine cars of different heights, the entire connecting device must be replaced, which not only increases equipment procurement costs but also leads to longer downtime waiting time for mine cars, affecting the efficiency of mine transportation. Therefore, the above problems need to be solved. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary connection device for mining cars.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a mine car auxiliary connection device, comprising a main frame, an installation groove at the bottom of the main frame, two symmetrical connection grooves on one side of the main frame, a bumper body inserted into each of the two connection grooves, a fixing block fixedly connected to the top of the main frame, ribs symmetrically welded to both sides of the fixing block, a connector slidably disposed within the fixing block, and a height adjustment component at the bottom of the connector.

[0005] Preferably, an extension block is fixedly connected to the bottom of the connector, and threaded holes are symmetrically and equidistantly opened on both sides of the extension block. Limiting bolts are symmetrically and rotatably connected to both sides of the fixing block, and the bottom of the limiting bolts is screwed into one of the threaded holes.

[0006] Preferably, the connector has an insertion port on its side wall and a through hole for fixing external equipment on its top.

[0007] Preferably, the height adjustment component includes a countersunk bolt screwed into the bottom of the main frame and a connecting hole opened in the bottom of the extension block. A bearing ring is installed in the connecting hole. The bottom of the countersunk bolt is rotatably connected to the extension block through the bearing ring. One side of the top of the countersunk bolt is movably abutted in the mounting groove.

[0008] Preferably, the top surface of the main frame is screwed with fixing screws for fixing the bumpers on both sides.

[0009] Preferably, two elastic buffer pads are symmetrically fixed to the inner wall of the connecting groove. The elastic buffer pads are made of rubber and have anti-slip textures on their surface. The elastic buffer pads are movably abutted against the side wall of the bumper body.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the bumper body can be firmly fixed in the connecting groove by the cooperation of the bumper body and the fixing bumper screw, preventing the bumper body from loosening or falling off during the operation of the mine car, and ensuring a stable collision buffering effect; the connection head can be fixed in different positions by the cooperation of the limiting bolt and the threaded hole, ensuring that the position of the connection head is stable after adjustment and is not easy to slip under force; the countersunk bolt can realize the height adjustment of the connection head, adapting to the connection needs of mine cars of different heights. The adjustment process is smooth and labor-saving, solving the problem that the connection head height is fixed and cannot be adapted to the connection of mine cars of different heights, requiring the replacement of the device. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall first-view structure proposed in this utility model; Figure 2 This is a schematic diagram of the internal second-view structure proposed in this utility model; Figure 3 This is a schematic diagram of the structure of some parts proposed in this utility model; Figure 4 A schematic diagram of the internal structure of the main frame of this utility model is provided.

[0012] The numbers in the diagram are: 1. Main frame; 2. Connector; 3. Through pin hole; 4. Rib plate; 5. Fixing head screw; 6. Countersunk bolt; 7. Mounting groove; 8. Head body; 9. Limit bolt; 10. Threaded hole; 11. Bearing ring; 12. Connecting hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 4This utility model discloses an auxiliary connection device for a mine car, comprising a main frame 1. The bottom of the main frame 1 has an installation groove 7, which allows the top of the countersunk bolt 6 to be concealed within the groove, preventing protrusions from affecting the installation and use of the device. It also provides an installation position for fixing the main frame 1 to the mine car. Two symmetrical connection grooves are provided on one side of the main frame 1, each containing a stop body 8. The stop body 8 helps absorb some impact force, reducing damage to the main frame 1 and the mine car. A fixing block is fixed to the top of the main frame 1, and ribs 4 are symmetrically welded to both sides of the fixing block. The ribs 4 help distribute the force on the fixing block, reducing deformation of the fixing block when the connector 2 is under stress. A connector 2 is slidably installed inside the fixing block, and a height adjustment component is provided at the bottom of the connector 2, allowing it to adapt to different connection position requirements.

[0015] In this utility model, an extension block is fixedly attached to the bottom of the connector 2. Threaded holes 10 are symmetrically and equidistantly opened on both sides of the extension block. Limiting bolts 9 are symmetrically and rotatably connected to both sides of the fixing block. The bottom of the limiting bolt 9 is screwed into one of the threaded holes 10. The threaded holes 10 facilitate fixing the connector 2 in different positions, ensuring the connector 2 remains stable after adjustment and is not prone to slippage under force. A socket is opened on the side wall of the connector 2, and a through-hole 3 for fixing external equipment is opened on the top of the connector 2. The through-hole 3 facilitates quick and easy fixing of the connector 2 to the external equipment, ensuring a firm connection that is not easily detached. The height adjustment component includes a countersunk bolt 6 screwed into the bottom of the main frame 1 and a bolt located at the bottom of the extension block. A connecting hole 12 is provided, in which a bearing ring 11 is installed. The bottom of the countersunk bolt 6 is rotatably connected to the extension block via the bearing ring 11. One side of the top of the countersunk bolt 6 is movably abutted in the mounting groove 7. The bearing ring 11 facilitates the rotatable connection between the bottom of the countersunk bolt 6 and the extension block, reducing rotational friction. Fixing bolt screws 5 are screwed onto both sides of the top surface of the main frame 1 to fix the bumper. The fixing bolt screws 5 facilitate the firm fixation of the bumper body 8 in the connecting groove, preventing the bumper body 8 from loosening or falling off during mine car operation and ensuring stable collision buffering effect. Two elastic buffer pads are symmetrically fixed to the inner wall of the connecting groove. The elastic buffer pads are made of rubber and have anti-slip texture on the surface. The elastic buffer pads movably abut against the side wall of the bumper body 8.

[0016] Working Principle: When using this utility model, firstly rotate the countersunk bolt 6 at the bottom of the main frame 1. The top of the countersunk bolt 6 is hidden in the mounting groove 7 to avoid interference, and the bottom is rotatably connected to the extension block through the bearing ring 11 in the connecting hole 12. The bearing ring 11 reduces the frictional resistance when the countersunk bolt 6 rotates, making the adjustment easier and smoother. As the countersunk bolt 6 rotates, its top slides along the inner wall of the mounting groove 7, and the bottom pushing end pushes the extension block up and down through the thread, causing the connector 2 to slide synchronously in the fixed block, realizing the precise adjustment of the height of the connector 2 to adapt to the connection needs of mine cars of different heights. Then, after the connector 2 is adjusted to the appropriate height, screw the limiting bolts 9 on both sides of the fixed block into the threaded holes 10 of the corresponding height of the extension block. Multiple equally spaced threaded holes 10 provide multiple fixing options. The frictional force generated by the thread engagement firmly locks the connector 2, preventing the mine car from being locked in place. When the car is running, vibration or impact may cause the connector 2 to shift. To ensure a stable and reliable connection, a bumper 8 is inserted into the connecting groove on one side of the main frame 1. The elastic buffer pads on both sides are tightly fitted to the side walls of the bumper 8. When the mine cars are connected, the bumper 8 first contacts the corresponding part of the other mine car and absorbs part of the impact force through its own deformation. The elastic buffer pads further buffer and reduce shock, reducing the damage to the main frame 1 caused by the collision. At the same time, the anti-slip texture prevents the bumper 8 from sliding in the connecting groove, ensuring a stable buffering effect. Finally, the insertion port on the side wall of the connector 2 is used for initial docking with the connecting parts of the other mine car to achieve quick positioning. The pin hole 3 at the top is used to insert a pin. After the connecting parts of the two mine cars are inserted into the insertion port, the pin passes through the pin hole 3 to complete the final fixation, forming a rigid connection to ensure that the mine car group will not disengage during operation. This concludes the use of a mine car auxiliary connection device.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mine car auxiliary connection device, comprising a main frame (1), characterized in that: The main frame (1) has an installation groove (7) at the bottom. Two connecting grooves are symmetrically opened on one side of the main frame (1). A head body (8) is inserted into each of the two connecting grooves. A fixing block is fixed to the top of the main frame (1). Ribs (4) are symmetrically welded on both sides of the fixing block. A connector (2) is slidably provided in the fixing block. A height adjustment component is provided at the bottom of the connector (2).

2. The auxiliary connection device for a mining car according to claim 1, characterized in that: The connector (2) has an extension block fixed to its bottom. The extension block has threaded holes (10) symmetrically arranged on both sides. The fixed block has limit bolts (9) symmetrically rotated on both sides. The bottom of the limit bolts (9) is screwed into one of the threaded holes (10).

3. The auxiliary connection device for a mining car according to claim 2, characterized in that: The connector (2) has an insertion port on its side wall and a pin hole (3) for fixing external equipment on its top.

4. The auxiliary connection device for a mining car according to claim 1, characterized in that: The height adjustment component includes a countersunk bolt (6) screwed into the bottom of the main frame (1) and a connecting hole (12) opened in the bottom of the extension block. A bearing ring (11) is installed in the connecting hole (12). The bottom of the countersunk bolt (6) is rotatably connected to the extension block through the bearing ring (11). The top side of the countersunk bolt (6) is movably abutted in the mounting groove (7).

5. The auxiliary connection device for a mining car according to claim 1, characterized in that: The main frame (1) has fixing screws (5) for fixing the bumpers screwed on both sides of the top surface.

6. The auxiliary connection device for a mining car according to claim 1, characterized in that: Two elastic buffer pads are symmetrically fixed to the inner wall of the connecting groove. The elastic buffer pads are made of rubber and have anti-slip texture on the surface. The elastic buffer pads move against the side wall of the bumper body (8).