Automatic hooking and unhooking connecting device for unmanned mine car
By designing an automatic hook-and-dehook connection device for unmanned mine cars, the double ball connecting rod drives the rotation shaft to realize automatic hook-and-dehook operations of unmanned mine cars, the problem of insufficient automation and safety in the hook-and-dehook connection process of unmanned mine cars is solved, transportation efficiency and safety are improved, and the device structure and maintenance process are simplified.
Patent Information
- Application Number
- CN202510440452.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-06-20
AI Technical Summary
The lack of automation and safety in the unmanned mine car's hook-up connection process, resulting in low transportation efficiency and operational safety hazards. The existing equipment is complex in design, poor stability, difficult to install and maintain, making it difficult to adapt to the working environment of unmanned mine car.
An automatic hooking and dehooking connection device for unmanned mine cars is designed, including an unmanned mine car connecting seat, hooking and dehooking installation support, buffering device, hooking and dehooking mechanism and double ball connecting rod. The rotating shaft is driven by the double ball connecting rod to realize the automatic hooking and dehooking operation of unmanned mine cars.
It realizes that the unmanned mine car can quickly and accurately complete the hooking and decoupling operation without human intervention, reduces waiting time and labor costs, and improves the efficiency and safety of the mining production process. The device structure is simple and reliable, convenient to maintain, and has impact resistance.
Smart Images
Figure CN120171585A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mining machinery and equipment, and particularly relates to an automatic hook-on and hook-off connection device for unmanned mining trucks. Background Art
[0002] In mining operations, mining trucks, as important transportation tools, their operating efficiency directly affects the production efficiency of the entire mine. The traditional hook-on and hook-off operations of mining trucks mainly rely on manual labor, which not only has low efficiency but also has certain safety hazards. In recent years, with the continuous development of unmanned and automated technologies, unmanned mining trucks have become a new trend in mining. However, there are still technical bottlenecks in the hook-on and hook-off connections of unmanned mining trucks. How to achieve automatic hook-on and hook-off connections for unmanned mining trucks, improve transportation efficiency, and ensure operation safety at the same time has become an urgent problem to be solved. Most of the existing hook-on and hook-off connection devices for mining trucks are complex in design, poor in stability, difficult to install and maintain, and difficult to adapt to the working environment of unmanned mining trucks, and cannot meet the requirements of unmanned mining trucks for efficient and safe hook-on and hook-off connections. Aiming at the deficiencies of the existing technology, this device aims to solve the automation and safety problems in the hook-on and hook-off connection process of unmanned mining trucks, thereby improving the operation efficiency and safety of mining, and reducing labor costs and operation risks. Summary of the Invention
[0003] The present invention provides an automatic hook-on and hook-off connection device for unmanned mining trucks to solve the problems existing in the above background.
[0004] To achieve the above object, the present invention adopts the following technical solutions: An automatic hook-on and hook-off connection device for unmanned mining trucks includes an unmanned mining truck connection seat, a hook-on and hook-off installation support, a buffer device, a hook-on and hook-off mechanism, and a double-ball connecting rod. The unmanned mining truck connection seat is connected to the unmanned mining truck. The hook-on and hook-off installation support is composed of a wall plate, a fixing block, a connecting rod, and a fastener. The wall plate and the fixing block are fixedly connected by welding. The left and right wall plates are connected by a connecting rod, with a fixed gap left in the middle. The hook-on and hook-off installation support is connected to the unmanned mining truck connection seat through the fixing block. A chute is provided at the center position inside the hook-on and hook-off installation support. The buffer device is composed of a compression spring and a slider connected to each other. One end of the compression spring is fixed on the unmanned mining truck connection seat, and one end of the slider can slide freely in the chute of the hook-on and hook-off installation support. The surface of the slider in contact with the double-ball connecting rod is processed into a concave surface.
[0005] Further, the hook engaging and disengaging mechanism includes a rotating shaft, a gear disk, a bearing, a limit retaining pin, a return spring, and a hook engaging and disengaging push rod. Two of the rotating shafts form a group, which are divided into a driving rotating shaft and a driven rotating shaft, and are installed on the hook engaging and disengaging mounting seat through bearings. The gear disk is installed at the end of the rotating shaft to form meshing with each other to ensure the consistency of the rotation of the rotating shaft. The shaft surface of the rotating shaft is grooved along the circumferential direction, the cross-section of the groove is semi-circular, and the length of the groove is in the arc length range formed by a 270° circumference. The semi-circular grooves of the driving rotating shaft and the driven rotating shaft are installed oppositely, and the spatial cross-section formed during the rotation process is a circular surface to facilitate the smooth passage of the double-ball connecting rod. At the position where the shaft surface of the rotating shaft is in contact with the inner side of the hook engaging and disengaging mounting seat, a limit retaining pin slot is opened, the cross-section of the slot is rectangular, and the length of the slot is in the arc length range formed by a 90° circumference to limit the rotation angle and position of the rotating shaft. The limit retaining pin is fixed to the hook engaging and disengaging mounting seat through threaded connection.
[0006] Further, the return spring is a tension spring, and its two ends are respectively connected to the rotating shaft gear disk and the spring hanging post. A fixing hole is opened at the end of the hook engaging and disengaging push rod, and it is fixedly connected to the end of the driving rotating shaft close to the outside of the gear disk, and can drive the driving rotating shaft to rotate freely.
[0007] Further, the automatic hook engaging and disengaging connection device for unmanned mining trucks is used in pairs. The automatic hook engaging and disengaging connection devices for unmanned mining trucks are respectively installed at the connection of two unmanned mining trucks. The double-ball connecting rod is pre-installed on one side of the automatic hook engaging and disengaging connection device for unmanned mining trucks. When the two mining trucks approach each other, after the head of the double-ball connecting rod touches the semi-circular groove surface of the rotating shaft, the forward movement process drives the rotating shaft to rotate. The double-ball connecting rod enters the inside of the automatic hook engaging and disengaging connection device for the other unmanned mining truck, and then the return spring drives the rotating shaft to reset to complete the mutual hooking of the unmanned mining trucks.
[0008] The present invention has the following beneficial effects: In the present invention, the mining truck can quickly and accurately complete the hook engaging and disengaging operations without manual intervention, greatly reducing the waiting time and labor costs, and making the entire mining production process smoother and more efficient; after the double-ball connecting rod is connected, the mining truck can be flipped at any angle, and the unloading operation can be completed without unhooking the truck. The spherical connecting mechanism has strong flexibility and the vehicle runs smoothly; the automatic hook engaging and disengaging connection device for unmanned mining trucks has a simple and reliable structure, is convenient for maintenance, has a certain impact resistance, and is suitable for use in places such as mines. Description of the Drawings
[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0010] Figure 2 It is a schematic diagram of the structure of the hook engaging and disengaging mounting seat in the present invention.
[0011] Figure 3It is a schematic structural diagram of the hook-on and hook-off mechanism in the present invention.
[0012] Figure 4 It is a schematic structural diagram of the open state of the hook-on and hook-off mechanism in the present invention.
[0013] The meanings of the reference numerals are as follows: 1. Unmanned mining vehicle connection seat; 2. Hook-on and hook-off installation support; 2-1. Wall panel; 2-2. Fixed block; 2-3. Connecting rod; 2-4. Fastener; 2-5. Spring hanging post; 3. Buffer device; 3-1. Compression spring; 3-2. Slide block; 4. Hook-on and hook-off mechanism; 5. Double-ball connecting rod; 6. Rotating shaft; 6-1. Active rotating shaft; 6-2. Driven rotating shaft; 7. Gear disk; 7-1. Rotating shaft gear disk; 7-2. First gear disk; 8. Bearing; 9. Limit stop pin; 10. Return spring; 11. Hook-on and hook-off push rod. Specific embodiments
[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] As Figures 1-4 shown, an automatic hook-on and hook-off connection device for an unmanned mining vehicle includes an unmanned mining vehicle connection seat 1, a hook-on and hook-off installation support 2, a buffer device 3, a hook-on and hook-off mechanism 4, and a double-ball connecting rod 5. The unmanned mining vehicle connection seat 1 is an integral component, and its end is connected to the unmanned mining vehicle through a pin shaft. The hook-on and hook-off installation support 2 is composed of a wall panel 2-1, a fixed block 2-2, a connecting rod 2-3, and a fastener 2-4. The wall panel 2-1 and the fixed block 2-2 are fixedly connected by welding. The left and right wall panels 2-1 are fixed to each other by four connecting rods 2-3. The middle section of the connecting rod 2-3 has a fixed length to ensure that the left and right wall panels 2-1 form a space with a fixed size. Two spring hanging posts 2-5 are welded on the surface of the right wall panel 2-1. The hook-on and hook-off installation support 2 and the fixed block 2-2 are fixedly connected to the unmanned mining vehicle connection seat 1, and a chute is provided at the center position inside the hook-on and hook-off installation support 2. The buffer device 3 is composed of a compression spring 3-1 and a slide block 3-2 connected to each other. One end of the compression spring 3-1 is fixed on the unmanned mining vehicle connection seat 1, and the other end is connected to the slide block 3-2. The slide block 3-2 can slide freely in the chute of the hook-on and hook-off installation support, and the surface of the slide block 3-2 that interacts with the double-ball connecting rod 5 is processed into a concave surface.
[0016] The hook-on and hook-off mechanism 4 includes a rotating shaft 6, a gear disc 7, a bearing 8, a limit stop pin 9, a return spring 10, and a hook-on and hook-off push rod 11. Two rotating shafts 6 are grouped together, divided into a driving rotating shaft 6-1 and a driven rotating shaft 6-2, and are installed at the hook-on and hook-off mounting seat 2 through the bearing 8. The rotating shaft gear disc 7-1 and the first gear disc 7-2 are installed at the end positions of the driving rotating shaft 6-1 and the driven rotating shaft 6-2 and mesh with each other to ensure the consistency of the rotation of the rotating shaft. The shaft surface of the rotating shaft 6 is grooved along the circumferential direction, the cross-section of the groove is semi-circular, and the grooving length ranges from the arc length formed by 270° of the circumference. The semi-circular grooves of the driving rotating shaft 6-1 and the driven rotating shaft 6-2 are installed opposite to each other, and the space cross-section formed during the rotation process is a circular surface to facilitate the smooth passage of the double-ball connecting rod 5. At the position where the shaft surface of the rotating shaft 6 is in contact with the inner side of the hook-on and hook-off mounting seat 2, a groove for the limit stop pin 9 is opened, the cross-section of the groove is rectangular, and the grooving length ranges from the arc length formed by 90° of the circumference to limit the rotation angle and position of the rotating shaft. The limit stop pin 9 is connected to the hook-on and hook-off mounting seat 2 by threads, and two are provided in total to limit the rotation of the driving rotating shaft 6-1 and the driven rotating shaft 6-2 respectively.
[0017] The return spring 10 is a tension spring, and two are used up and down. The two ends are respectively connected to the rotating shaft gear disc 7-1 and the spring hanging post 2-5, and the gear disc 7-2 and the spring hanging post 2-5. A fixing hole is opened at the end of the hook-on and hook-off push rod 11, and it is fixedly connected to the shaft end of the driving rotating shaft 6-1 closely against the outside of the gear disc, and can drive the driving rotating shaft 6-1 to rotate freely.
[0018] When the present invention is specifically used, the automatic hook-on and hook-off connection device for unmanned mining vehicles needs to be used in pairs. The automatic hook-on and hook-off connection device for unmanned mining vehicles is respectively installed at the connection of two unmanned mining vehicles. The double-ball connecting rod 5 is pre-installed on one side of the automatic hook-on and hook-off connection device for unmanned mining vehicles. When the two mining vehicles approach each other, after the head of the double-ball connecting rod 5 touches the semi-circular groove surface of the rotating shaft 6, it moves forward and drives the rotating shaft 6 to rotate, and a circular cross-section will be formed mutually. The double-ball connecting rod 5 can pass through smoothly and enter the inside of the automatic hook-on and hook-off connection device for the other unmanned mining vehicle. Subsequently, the return spring 10 drives the rotating shaft 6 to reset, and the opening of the circular cross-section formed by the semi-circular groove surface of the rotating shaft 6 closes to form a block, locking the double-ball connecting rod 5 inside the automatic hook-on and hook-off connection device for unmanned mining vehicles, thereby completing the mutual hooking of the unmanned mining vehicles. When it is necessary to perform the hook-off process, the power system drives the hook-on and hook-off push rod 11 to rotate, and drives the rotating shaft 6 to rotate. The opening of the circular cross-section formed by the semi-circular groove surface of the rotating shaft 6 gradually opens, and one end of the double-ball connecting rod 5 penetrates outwards, thereby completing the hook-off operation.
Claims
1. An automatic hook-and-unhook connection device for an unmanned mining vehicle, characterized in that: It comprises an unmanned mining vehicle connecting seat (1), a hook-and-unhook mounting support (2), a buffer device (3), a hook-and-unhook mechanism (4) and a double-ball connecting rod (5); The unmanned mining vehicle connecting seat (1) is an integral component, and its end position is connected to the unmanned mining vehicle via a pin shaft; The hook-and-detachment mounting support (2) comprises a plurality of wall panels (2-1), a fixing block (2-2), a connecting rod (2-3) and a fastener (2-4); the wall panels (2-1) and the fixing blocks (2-2) are fixedly connected; the wall panels (2-1) are fixedly arranged by means of a plurality of connecting rods (2-3); the length of the middle section of the connecting rods (2-3) is fixedly arranged; a plurality of spring hanging columns (2-5) are fixedly arranged on the side of one side wall panel (2-1); and the hook-and-detachment mounting support (2) and the fixing block (2-2) are fixedly arranged on the unmanned mining vehicle connecting seat (1); The buffer device (3) comprises a compression spring (3-1) and a slider (3-2); one end of the compression spring (3-1) is fixedly arranged on the unmanned mining vehicle connecting seat (1), and the other end is connected to the slider (3-2); the slider (3-2) can slide in the slide groove of the hook-and-release mounting support (2); The hook-and-unhook mechanism (4) comprises a rotating shaft (6), a gear plate (7), a bearing (8), a limit stop pin (9), a return spring (10) and a hook-and-unhook push rod (11); the gear plate (7) comprises a rotating shaft gear plate (7-1) and a first gear plate (7-2).
2. The automatic hook-and-unhook connection device for an unmanned mining vehicle according to claim 1 is characterized in that: The rotating shaft (6) comprises a driving rotating shaft (6-1) and a driven rotating shaft (6-2); the driving rotating shaft (6-1) and the driven rotating shaft (6-2) are rotatably arranged on the hook-and-disconnection mounting support (2) via bearings (8); the rotating shaft gear plate (7-1) and the first gear plate (7-2) are respectively arranged at the end positions of the driving rotating shaft (6-1) and the driven rotating shaft (6-2) and mesh with each other; and a plurality of limit stop pins (9) are provided at positions where the axial surface of the rotating shaft (6) contacts the inner side of the hook-and-disconnection mounting support (2).
3. The automatic hook-and-unhook connection device for an unmanned mining vehicle according to claim 2 is characterized in that: The limit stop pin (9) and the hook-and-release mounting support (2) are both connected via threads.
4. The automatic hook-and-unhook connection device for an unmanned mining vehicle according to claim 1 is characterized in that: One end of the return spring (10) is connected to the rotating shaft gear plate (7-1) and the spring hanging column (2-5), and the other end of the return spring (10) is connected to the first gear plate (7-2) and the spring hanging column (2-5).
5. The automatic hook-and-unhook connection device for an unmanned mining vehicle according to claim 1 is characterized in that: The hooking and unhooking push rod (11) is closely attached to the outer side of the gear plate (7) and is fixedly connected to the shaft end of the driving rotating shaft (6-1).