A self-resetting trolley head for mining outside the track
By designing a self-resetting pusher head for mining outside the track, and using limit components and door closers to achieve automatic reset of the pusher arm, the problems of complexity and low safety of manual operation in the existing technology are solved, making it suitable for pushing mine cars in mine yards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FURUIDA ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-10-30
- Publication Date
- 2026-08-04
AI Technical Summary
The existing mine roadway pusher head requires manual operation of the push arm to open and close when pushing mine cars, which increases the complexity for workers and safety hazards, and is prone to hitting people and causing injury.
A mine roadway self-resetting pusher head was designed. The push arm is automatically reset through limit components and door closers, reducing manual operation. The pusher head body is driven by a hydraulic motor to rotate the push arm. The rotation speed is adjusted by a buffer plate and speed control valve to avoid excessive force.
It achieves automatic resetting of the push arm, reduces the complexity of on-site coordination for staff, improves safety, avoids injury to personnel due to excessive force, and is suitable for complex on-site environments.
Smart Images
Figure CN224589144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trolley head technology, specifically to a mine track-side self-resetting trolley head. Background Technology
[0002] Hydraulic motor-driven car pushers, consisting of a moving trolley and a pusher head, are widely used in coal and metal mine yards, primarily responsible for the scheduling and transportation of mine cars. The pusher head, as the direct connector between the mine car and the pusher, plays a particularly important role.
[0003] In existing technologies, after the off-track pusher head pushes the mine car, personnel need to open the push arm, at which point the mine car body is parallel to the push arm. When the pusher head returns to its initial position, personnel close the push arm to reset it, at which point the mine car body is perpendicular to the push arm. This cycle is repeated to push the mine car. Alternatively, the opening and closing of the push arm is achieved by personnel controlling the drive motor. This method increases the complexity of personnel deployment and equipment operation on the work site. Moreover, during the opening and closing of the push arm, personnel are easily bumped, and excessive force can cause injury, resulting in low safety. A mine off-track self-resetting pusher head is needed to solve the above-mentioned problems. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mine track-side self-resetting trolley head to solve the problems mentioned in the background technology. This utility model has a reasonable structure, reduces the complexity of on-site dispatching or operation of equipment by staff, and has high safety.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mine track-side self-resetting trolley head, comprising: A trolley head body, wherein a pusher head is provided on the top of the trolley head body; The pusher includes a support seat disposed on the top of the pusher head body. A rotating shaft is rotatably disposed on the top of the support seat. A push arm is disposed on the top of the rotating shaft. A door closer is disposed between the top of the support seat and one side wall of the push arm. A limiting component for limiting and supporting the push arm to push the mine car is disposed between the top of the support seat and the bottom of the push arm.
[0006] Furthermore, a bearing is provided at the connection between the support base and the rotating shaft; The top of the support base is provided with a connecting plate that is connected to the main body of the door closer, and the support of the door closer is connected to one side of the push arm.
[0007] Furthermore, the limiting component includes a limiting plate disposed at the bottom of the push arm, and a pair of baffles are disposed on the top of the support base for limiting the limiting plate to restrict the rotation angle of the push arm; When the door closer is in the closed state, the push arm is perpendicular to the direction of movement of the mine car and the limiting plate is in contact with one of the baffles.
[0008] Furthermore, a buffer plate is provided on the side of the pusher arm closest to the mine car.
[0009] Furthermore, a pusher head rail is provided at the bottom of the pusher head body, and a mine car rail connected to the wheels of the mine car is provided on one side of the pusher head rail. A drive assembly for transporting the pusher head body is provided below the pusher head rail.
[0010] Furthermore, the drive assembly includes a mounting base disposed below the trolley head rail, a hydraulic motor disposed on the top of the mounting base, and a drive gear disposed on the output shaft of the hydraulic motor; Multiple mobile trolleys are sequentially connected to the trolley head body via pins. The gaps between adjacent axles, pins, and axles of the mobile trolleys and the trolley head body mesh with the tooth grooves of the drive gear.
[0011] The beneficial effects achieved by the present invention using the above structure are as follows: This invention pushes a mine car using a push arm supported by a limiting component. After the mine car is pushed, the push arm returns to its initial position as the pusher head moves away from the car. During this process, the push arm contacts the end of the waiting mine car, and the car exerts a reaction force on the push arm, causing it to rotate away from the car. At this time, the door closer slowly opens, and one side of the push arm conforms to the side wall of the mine car to avoid contact. When the push arm moves to the front end of the mine car, the door closer resets, pulling the push arm back to its initial position to contact the front end of the car for further pushing operations. This design enables automatic reset of the push arm, reducing the complexity of on-site equipment coordination and operation for staff. Furthermore, the speed control valve on the door closer allows for adjustment of the push arm's rotation speed, preventing excessive force from causing injury to personnel, thus ensuring high safety. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a mine track self-resetting pusher head connected to a mine car according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the connection between the drive assembly and the pusher head in a mine roadway self-resetting pusher head according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a mine track self-resetting pusher head according to an embodiment of the present invention; Figure 4 This is a front sectional view of a mine roadway self-resetting trolley head according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a mine track self-resetting pusher head in contact with the end of a mine car according to an embodiment of the present invention; Figure 6 This is a schematic diagram showing the contact between the self-resetting pusher head of a mine track and the end of a mine car according to an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of a mine track self-resetting pusher head in contact with the side wall of a mine car according to an embodiment of the present invention; Figure 8 This is a schematic diagram showing the contact between the self-resetting pusher head of a mine track and the side wall of a mine car according to an embodiment of the present invention. Figure 9 This is a schematic diagram of a mine track self-resetting pusher head returning to its initial position and connecting with a mine car according to an embodiment of the present invention; In the diagram: 1. Cart body; 1001. Cart track; 1002. Mine car track; 2. Support seat; 3. Bearing; 4. Rotating shaft; 5. Limiting assembly; 51. Limiting plate; 52. Baffle; 6. Push arm; 7. Buffer plate; 8. Drive assembly; 81. Hydraulic motor; 82. Drive gear; 83. Mounting seat; 9. Door closer; 10. Connecting plate. Detailed Implementation
[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0014] like Figure 1 As shown, this utility model provides a technical solution: a mine track-side self-resetting trolley head, comprising: The trolley head body 1 has a pusher head installed on the top of the trolley head body 1; The pusher includes a support seat 2 set on the top of the pusher head body 1, a rotating shaft 4 rotatably set on the top of the support seat 2, a push arm 6 set on the top of the rotating shaft 4, a door closer 9 set between the top of the support seat 2 and one side wall of the push arm 6, and a limiting component 5 set between the top of the support seat 2 and the bottom of the push arm 6 for limiting and supporting the push arm 6 to push the mine car. This design uses a pusher arm 6, supported by a limiting component 5, to push the mine car. After the mine car is pushed, the pusher arm 6 returns to its initial position as the pusher head body 1 moves it. During this process, the pusher arm 6 contacts the end of the mine car waiting to be pushed, and the mine car applies a reaction force to the pusher arm 6. The pusher arm 6 then rotates the rotating shaft 4 away from the mine car. At this time, the door closer 9 slowly opens, and one side of the pusher arm 6 fits against the side wall of the mine car to avoid contact. When the pusher arm 6 moves to the front end of the mine car, the door closer 9 resets and pulls the pusher arm 6 back to its initial position to contact the front end of the mine car for subsequent pushing operations. This design enables the pusher arm 6 to automatically reset, reducing the complexity of on-site equipment deployment or operation for staff. Furthermore, the speed control valve on the door closer 9 can adjust the rotation speed of the pusher arm 6, preventing excessive force from causing injury to personnel, thus ensuring high safety.
[0015] Reference Figure 1 and Figure 4 A bearing 3 is provided at the connection between the support base 2 and the rotating shaft 4; The support base 2 has a connecting plate 10 at its top that connects to the main body of the door closer 9. The support of the door closer 9 is connected to one side of the push arm 6. This design improves the stability of the rotation point through the bearing 3; the connecting plate 10 facilitates the installation of the door closer 9.
[0016] Reference Figure 1 , Figure 2 and Figure 3 The limiting component 5 includes a limiting plate 51 disposed at the bottom of the push arm 6, and a pair of baffles 52 disposed at the top of the support base 2 for limiting the limiting plate 51 to restrict the rotation angle of the push arm 6. When the door closer 9 is in the closed state, the push arm 6 is perpendicular to the direction of movement of the mine car, and the limiting plate 51 is in contact with one of the baffles 52. This design limits the rotation angle of the push arm 6 by a pair of baffles 52, ensuring that the push arm 6 rotates within a suitable angle. When the door closer 9 is in the closed state, the push arm 6 is perpendicular to the direction of movement of the mine car, and the limiting plate 51 is in contact with one of the baffles 52, ensuring the stability of the push arm 6 in pushing the mine car.
[0017] Reference Figure 4 and Figure 9 A buffer plate 7 is installed on the side of the pusher arm 6 closest to the mine car. This design reduces the impact force when the pusher arm 6 connects with the mine car, thus reducing noise.
[0018] Reference Figure 1 The design includes a pusher head rail 1001 at the bottom of the pusher head body 1, and a mine car rail 1002 connected to the wheels of the mine car on one side of the pusher head rail 1001. A drive assembly 8 for transporting the pusher head body 1 is located below the pusher head rail 1001. This design uses the drive assembly 8 to push the pusher head body 1 along the pusher head rail 1001. The movement of the pusher head body 1 moves the support seat 2, which in turn moves the push arm 6 on the rotating shaft 4 to apply force to the mine car. The mine car then moves along the mine car rail 1002, facilitating its transport. By placing the drive assembly 8 on the outside of the mine car rail 1002 and driving the push arm 6 to push the mine car, this design is suitable for complex site environments, such as when there is other equipment inside the mine car rail 1002, or when vehicles need to travel on this section of the rail during construction and construction cannot be stopped.
[0019] Reference Figure 1 and Figure 2 The drive assembly 8 includes a mounting base 83 disposed below the trolley head rail 1001, a hydraulic motor 81 disposed on the top of the mounting base 83, and a drive gear 82 disposed on the output shaft of the hydraulic motor 81. Multiple movable trolleys are sequentially connected to the pusher head body 1 via pins. The gaps between the axles and pins of the movable trolleys and the adjacent axles of the pusher head body 1 mesh with the tooth grooves of the drive gear 82. This design uses the hydraulic motor 81 in the drive assembly 8 to drive the drive gear 82 to rotate. The rotation of the drive gear 82 pushes the pusher head body 1 and the movable trolleys to move along the pusher head track 1001. The movement of the pusher head body 1 drives the push arm 6 to move and push the mine car, facilitating the movement of the mine car along the mine car track 1002. The output shaft of the hydraulic motor 81 is equipped with a drive shaft, and the drive gear 82 is mounted on the side wall of the drive shaft. A bearing seat is provided at the connection between the mounting base 83 and the drive shaft to improve the stability of the rotation of the drive gear 82.
[0020] Reference Figures 1-9 ,in, Figure 6 , Figure 8 and Figure 9 The number of mobile trolleys and mine cars in the diagram is only for illustrative purposes and can be added sequentially as needed. As one embodiment of this utility model: when it is necessary to push the mine car, the hydraulic motor 81 in the drive assembly 8 drives the drive gear 82 to rotate. The rotation of the drive gear 82 pushes the pusher head body 1 and the mobile trolley to move along the pusher head track 1001. The movement of the pusher head body 1 drives the support seat 2 to move. The support seat 2 drives the push arm 6 on the rotating shaft 4 to move and apply force to the mine car. The mine car then moves along the mine car track 1002, which facilitates the transportation operation of the mine car.
[0021] After the mine car is pushed, as the pusher head 1 drives the pusher arm 6 back to its initial position, the pusher arm 6 contacts the end of the mine car waiting to be pushed. The mine car applies a reaction force to the pusher arm 6, causing the pusher arm 6 to rotate away from the mine car, driving the rotating shaft 4 to rotate. At this time, the door closer 9 slowly opens, and one side of the pusher arm 6 fits against the side wall of the mine car to avoid collision. When the pusher arm 6 moves to the front end of the mine car, the door closer 9 resets and pulls the pusher arm 6 back to its initial position to contact the front end of the mine car for subsequent pushing operations. This automatic reset of the pusher arm 6 reduces the complexity of on-site equipment deployment or operation for staff. Furthermore, the speed control valve on the door closer 9 can adjust the rotation speed of the pusher arm 6 to avoid excessive force causing injury to personnel, ensuring high safety and improving the practicality of this invention.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A mine trackside self-resetting trolley head, comprising: The trolley head body (1) is provided with a pusher head on its top; Its features are: The pusher includes a support base (2) disposed on the top of the pusher head body (1), a rotating shaft (4) is rotatably disposed on the top of the support base (2), a push arm (6) is disposed on the top of the rotating shaft (4), a door closer (9) is disposed between the top of the support base (2) and one side wall of the push arm (6), and a limiting component (5) is disposed between the top of the support base (2) and the bottom of the push arm (6) for limiting and supporting the push arm (6) to push the mine car.
2. The mine track self-resetting trolley head according to claim 1, characterized in that, A bearing (3) is provided at the connection between the support base (2) and the rotating shaft (4); The top of the support base (2) is provided with a connecting plate (10) that is connected to the main body of the door closer (9), and the support of the door closer (9) is connected to one side of the push arm (6).
3. The mine track self-resetting trolley head according to claim 1, characterized in that, The limiting component (5) includes a limiting plate (51) disposed at the bottom of the push arm (6), and a pair of baffles (52) are disposed at the top of the support base (2) for limiting the limiting plate (51) to restrict the rotation angle of the push arm (6). When the door closer (9) is in the closed state, the push arm (6) is perpendicular to the moving direction of the mine car and the limiting plate (51) is in contact with one of the baffles (52).
4. The mine track self-resetting trolley head according to claim 1, characterized in that, The pusher (6) is provided with a buffer plate (7) on the side near the mine car.
5. The mine track self-resetting trolley head according to claim 1, characterized in that, The bottom of the pusher head car body (1) is provided with a pusher head rail (1001), and a mine car rail (1002) connected to the wheels of the mine car is provided on one side of the pusher head rail (1001). A drive assembly (8) for transporting the pusher head car body (1) is provided below the pusher head rail (1001).
6. The mine track self-resetting trolley head according to claim 5, characterized in that, The drive assembly (8) includes a mounting base (83) disposed below the trolley head rail (1001), a hydraulic motor (81) is disposed on the top of the mounting base (83), and a drive gear (82) is disposed on the output shaft of the hydraulic motor (81). Multiple mobile trolleys are connected in sequence on the trolley head body (1) via pins. The gaps between the axles, pins, and adjacent axles of the mobile trolleys and the trolley head body (1) mesh with the tooth grooves of the drive gear (82).