A magnetic levitation traction seat

Abstract

The present invention relates to the technical field of towing seats, and discloses a maglev towing seat, including: support seats symmetrically distributed on both sides of a rotating frame. A horizontally arranged bearing shaft is rotatably installed through the bottom of the rotating frame, and shaft kits are rotatably and fittingly installed between the side walls at both ends of the bearing shaft and the inner walls of the support seats; further including: a plate body obliquely and fittingly arranged above the rotating frame, the bottom surface of the plate body is arranged away from the support seat, symmetrically distributed guide rails are fixedly connected to the bottom slope of the plate body, and the guide rails slidably penetrate through the bottom of the rotating frame. In this maglev towing seat, a dual-buffer guarantee structure is achieved by combining a maglev structure and a hydraulic structure. The safety redundancy of the device is higher, and the dual-buffer structure of the device is provided with a force-receiving disc with a variable force-receiving area, thereby effectively increasing the effective range covered by the buffer force. Moreover, the device can be quickly connected to the carriage.

Description

Technical Field

[0001] The present invention relates to the technical field of drawbars, and particularly to a maglev drawbar. Background Art

[0002] A drawbar is a connecting device mainly used for the transmission connection between power components such as the vehicle head and the cargo compartment, enabling the vehicle head to drive the cargo compartment for rapid movement, steering and other operations. However, there are still some problems with existing drawbars:

[0003] For example, a buffer device for connecting carriages with the publication number CN103407461B belongs to the technical field of vehicle equipment. It includes an elastomer and a spring. One end of the elastomer is fixed on the first carriage, and two symmetric first rotating shafts are arranged at the other end. One end of the first connecting rod is connected to the first rotating shaft, and the other end is connected to the second rotating shaft;

[0004] A traction connection mechanism for multi-trailer vehicles with the publication number CN117261502B relates to the field of vehicle traction connection mechanisms. It includes a vehicle body component. One end of the vehicle body component is equipped with a traction mechanism, and an auxiliary mechanism is installed at one end of the vehicle body component. The traction mechanism and the auxiliary mechanism are located at the same end of the vehicle body component. The vehicle body component includes a frame;

[0005] A new traction device for a tractor with the publication number CN108116442B adopts a center pin + linear traction method, mainly including a traction crossbeam (4), a traction guide column (3), a multi-functional drawbar (1), a center pin (5), a secondary lateral shock absorber seat (2), and a bearing joint (6), etc.;

[0006] For the above devices, it is difficult to effectively buffer the cargo compartment against external vibration and impact, the safety redundancy of the device is poor, and it is difficult for the device to be quickly connected to the cargo compartment.

[0007] In view of the above problems, there is an urgent need for innovative design on the basis of the original drawbar. Summary of the Invention

[0008] The purpose of the present invention is to provide a maglev drawbar to solve the problems in the above background art that the existing drawbar is difficult to effectively buffer the cargo compartment against external vibration and impact, the safety redundancy of the device is poor, and it is difficult for the device to be quickly connected to the cargo compartment.

[0009] To achieve the above purpose, the present invention provides the following technical solution: A maglev drawbar, comprising:

[0010] Support seats symmetrically distributed on both sides of the rotating frame. A horizontally arranged bearing shaft is rotatably penetrated through the bottom of the rotating frame, and shaft kits are rotatably and fittingly installed between the side walls at both ends of the bearing shaft and the inner walls of the support seats;

[0011] It further includes:

[0012] A plate body, which is inclined and attached above the rotating frame. The bottom surface of the plate body is set away from the support base. Symmetrically distributed guide rails are fixedly connected to the bottom inclined surface of the plate body, and the guide rails slide through the bottom of the rotating frame. A wear part is coaxially arranged at the butting port at the bottom of the plate body, and the inner diameter of the wear part is larger than the inner diameter of the butting port at the bottom of the plate body to facilitate contact with the connecting column of the external carriage. A locking hook is arranged below the wear part, and the connecting shaft in the middle of the locking hook is rotatably embedded on the inner wall of the plate body;

[0013] A buffer sleeve, the top of which is fixedly connected to the bottom of the support base by bolts. The buffer sleeve is coaxially sleeved on the top of the outer support cylinder, and corresponding electromagnets are fixedly embedded at the upper and lower ends of the inner wall of the outer support cylinder. The upper end of a guide rod is coaxially and fixedly connected to the center of the top of the buffer sleeve, and the lower end surface of the guide rod is coaxially and fixedly connected to a main permanent magnet. The guide rod slides through the top of the outer support cylinder, and corresponding electromagnets are sleeved on the side wall of the rod body of the guide rod. An inner liquid storage cylinder is fixedly connected to the inner wall of the outer support cylinder coaxially. Three concentric ring frames are attached between the outer wall of the main permanent magnet and the inner wall of the inner liquid storage cylinder. A relay mechanism is fitted and embedded in the middle of each ring frame. The relay mechanism includes a moving plate, which is slidably attached to the inner wall of the ring frame. A locking head is fixedly installed in the middle of the side wall of the moving plate, and the axis of the locking head is perpendicular to and intersects with the axis of the ring frame.

[0014] Preferably, the semi-circular convex block at the head of the bearing shaft is attached to the outer wall of the corresponding support base, and a positioning pin for limiting is slidably penetrated through the side wall at the tail of the bearing shaft. Symmetrically distributed spring buffers are arranged below the plate body, and the moving ends of the spring buffers are rotatably connected to the top of the inclined surface of the plate body, and the convex shafts at the bottoms of the spring buffers are rotatably embedded on the side walls of the support base, so that the plate body can pull the spring buffers.

[0015] Preferably, the middle cross-section of the guide rail is in a "T" shape. One outer wall of the locking hook is attached to the limiting rod, and the other end of the locking hook is attached to the pressure inclined surface of the locking plate to form a limiting structure. Both ends of the limiting rod are fixedly connected to the inner wall of the plate body, and an inclined reset spring is arranged on the side of the limiting rod. One connecting piece at one end of the reset spring is rotatably connected to the outer wall of the locking hook, and the other connecting piece at the other end of the reset spring is rotatably connected to the inner wall convex column of the plate body, so that the locking hook can pull the reset spring.

[0016] Preferably, the locking plate is fitted and embedded on the inner wall of the plate body. A limiting block is fixedly connected to the outer wall of the locking plate on the side away from the locking hook, and the limiting block is embedded on the inner wall of the plate body to form a sliding limiting structure. Swing arms are slidably arranged at the bottoms of the plate body and the sliding rod, and the sliding rod slidably penetrates through the side wall of the plate body. The bottom end of the swing arm is rotatably embedded on the inner wall of the plate body, so that the locking plate can drive the limiting block to move directionally.

[0017] Preferably, a first convex shaft and a second convex shaft are respectively fitted and embedded in the guide grooves opened in the middle and top of the swing arm. The first convex shaft is fixedly connected to the side of the locking plate close to the limiting block, and the second convex shaft is fixedly connected to the side wall of the end of the sliding rod. A moving end of an auxiliary cylinder is rotatably connected to the side of the sliding rod close to the second convex shaft, and a fixed end of the auxiliary cylinder is rotatably installed on the inner wall of the plate body. A tension spring in a stretched state is sleeved outside the auxiliary cylinder, and the tension spring is fixedly connected between the fixed end and the moving end of the auxiliary cylinder, so that the swing arm can drive the locking plate to move through the first convex shaft.

[0018] Preferably, an outer buffer spring is fixedly connected between the lower end face of the buffer sleeve and the bottom of the outer support cylinder, and the outer buffer spring is coaxially sleeved on the side wall of the outer support cylinder. An oil return space is left between the inner wall of the outer support cylinder and the outer wall of the inner liquid storage cylinder. Through-flow return holes are opened in the side walls of the upper and lower parts of the inner liquid storage cylinder at equal angles, and corresponding electromagnets are coaxially and fixedly installed in the inner walls of the upper and lower ends of the inner liquid storage cylinder respectively, so that the oil liquid can flow through the return holes.

[0019] Preferably, corresponding positioning ring grooves are opened in the middle parts of the inner walls of the ring frame and the inner liquid storage cylinder, and corresponding locking heads are fitted and embedded in the positioning ring grooves to form a locking structure. The heights of the three concentric ring frames increase in a stepped manner from the inside to the outside. Auxiliary permanent magnetic rings are coaxially and fixedly connected to the upper and lower ends of the ring frame, and the auxiliary permanent magnetic rings are coaxially arranged opposite to the corresponding electromagnets, so that the ring frame can drive the corresponding auxiliary permanent magnetic rings to move.

[0020] Preferably, thrust sleeves are coaxially and fixedly sleeved at both ends of the side walls of the main permanent magnetic block and the ring frame, and the inclined surfaces of the thrust sleeves face the inclined surfaces on the corresponding auxiliary permanent magnetic rings. Oil discharge grooves are opened at the outer edges of the ends of the auxiliary permanent magnetic rings away from the ring frame, and the oil discharge grooves are equally angularly distributed on the auxiliary permanent magnetic rings and are in a triangular structure, so that the oil liquid can flow out through the oil discharge grooves on the auxiliary permanent magnetic rings.

[0021] Preferably, guiding columns symmetrically distributed up and down are slidably penetrated through the moving plate, and two ends of the guiding columns are fixedly connected to the inner wall of the ring frame. A pressure spring is sleeved on the guiding columns. A pressure spring is fixedly connected between the side of the moving plate away from the locking head and the inner wall of the ring frame. Corresponding force-bearing blocks are fixedly connected to the upper and lower ends of the moving plate respectively, and the force-bearing blocks are attached to the inner wall of the control frame. The outer wall of the control frame is slidably installed on the inner wall of the ring frame. The convex shafts on both sides of the force-bearing block are slidably inserted into the inclined slots formed in the control frame, so that the force-bearing block can drive the moving plate to move.

[0022] Preferably, a lifting rod is fixedly connected to the side of the control frame away from the force-bearing block. The lifting rod is slidably installed on the inner walls of the ring frame and the sub-permanent magnet ring. An arc-shaped plate coaxially arranged is slidably penetrated through the bottom inclined surface of the sub-permanent magnet ring. The arc-shaped plate faces the corresponding thrust sleeve. The arc-shaped plate is fixedly connected to the outer wall of the end of the lifting rod away from the control frame, so that the thrust sleeve can push the arc-shaped plate to move.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: This magnetic levitation traction seat combines a magnetic levitation structure and a hydraulic structure to achieve a dual-buffer protection structure, with a higher safety redundancy for the device. The dual-buffer structure of the device is provided with a force-bearing disc with a variable force-bearing area, thereby effectively increasing the effective range covered by the buffer force. Moreover, the device can be quickly connected to the carriage. The specific content is as follows:

[0024] 1. Corresponding positioning ring grooves are formed in the middle of the inner walls of the ring frame and the inner liquid storage cylinder. The locking heads are fitted and embedded in the positioning ring grooves to form a locking structure. The heights of the three concentric ring frames increase step by step from the inside to the outside. Sub-permanent magnet rings are coaxially fixedly connected to both the upper and lower ends of the ring frame. Thrust sleeves are coaxially fixedly sleeved on both ends of the side walls of the main permanent magnet block and the ring frame. A locking head is fixedly connected to the moving plate. A pressure spring is fixedly connected between the moving plate and the inner wall of the ring frame. Corresponding force-bearing blocks are fixedly connected to the upper and lower ends of the moving plate respectively. The convex shafts on both sides of the force-bearing block are slidably inserted into the inclined slots formed in the control frame. A lifting rod is fixedly connected to the side of the control frame away from the force-bearing block. An arc-shaped plate coaxially arranged is slidably penetrated through the bottom inclined surface of the sub-permanent magnet ring. The lifting rod and the arc-shaped plate are fixedly connected. When the main permanent magnet block drives the thrust sleeve to push the arc-shaped plate to move, the arc-shaped plate can drive the moving plate to slide through the control frame and the force-bearing block. A permanent magnet that generates magnetic repulsion with the sub-permanent magnet ring is embedded in the top of the control frame. The locking head on the moving plate disengages from the positioning ring groove, so that the corresponding ring frame can drive the sub-permanent magnet ring to move. At this time, the end faces of the main permanent magnet block and the sub-permanent magnet ring are flush to form a new force-bearing area.

[0025] 2. The connecting shaft in the middle of the locking hook is rotatably embedded in the inner wall of the plate body. One outer wall of the locking hook is attached to the limiting rod, and the other end of the locking hook is attached to the pressure inclined surface of the locking plate to form a limiting structure. The locking plate is fittingly embedded in the inner wall of the plate body. A limiting block is fixedly connected to the outer wall of the locking plate away from the locking hook, and the limiting block is embedded in the inner wall of the plate body to form a sliding limiting structure. When the connecting column on the external carriage pushes the locking hook to rotate, the locking hook will rotate a certain angle. At this time, the end of the locking hook will move away from the locking plate, enabling the locking plate to pop out, thereby limiting the locking hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall external structure of the present invention;

[0027] Figure 2 Schematic diagram of the installation structure of the plate body of the present invention;

[0028] Figure 3 Schematic diagram of the installation structure of the sliding rod of the present invention;

[0029] Figure 4 Schematic diagram of the installation structure of the locking plate of the present invention;

[0030] Figure 5 Schematic diagram of the installation structure of the swing arm of the present invention;

[0031] Figure 6 Schematic diagram of the installation structure of the spring ring groove device of the present invention;

[0032] Figure 7 Schematic diagram of the installation structure of the buffer sleeve of the present invention;

[0033] Figure 8 Schematic diagram of the installation structure of the outer support cylinder of the present invention;

[0034] Figure 9 Schematic diagram of the installation structure of the main permanent magnet block of the present invention;

[0035] Figure 10 Schematic diagram of the installation structure of the auxiliary permanent magnet ring of the present invention;

[0036] Figure 11 Schematic diagram of the installation structure of the locking head of the present invention.

[0037] In the figure: 1. Support base; 2. Rotating frame; 3. Bearing shaft; 4. Shaft kit; 5. Positioning pin; 6. Plate body; 7. Guide rail; 8. Spring buffer; 9. Wear part; 10. Lock hook; 11. Limit rod; 12. Return spring; 13. Locking plate; 14. Limit block; 15. Swing arm; 16. First convex shaft; 17. Second convex shaft; 18. Sliding rod; 19. Tension spring; 20. Buffer sleeve; 21. Outer support cylinder; 22. Guide rod; 23. Electromagnet; 24. Inner liquid storage cylinder; 25. Return hole; 26. Main permanent magnet block; 27. Thrust sleeve; 28. Ring frame; 29. Relay mechanism; 2901. Moving plate; 2902. Guide post; 2903. Pressure spring; 2904. Locking head; 2905. Force-receiving block; 2906. Control frame; 2907. Lifting rod; 2908. Arc plate; 30. Positioning ring groove; 31. Sub-permanent magnet ring; 32. Oil discharge groove; 33. Outer buffer spring; 34. Auxiliary cylinder. Detailed implementation manner

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-11 , the present invention provides a technical solution: a magnetic levitation traction seat, including:

[0040] The support base 1 is symmetrically distributed on both sides of the rotating frame 2. A horizontally arranged bearing shaft 3 is rotatably penetrated through the bottom of the rotating frame 2, and shaft kits 4 are rotatably and fittingly installed between the side walls at both ends of the bearing shaft 3 and the inner wall of the support base 1.

[0041] It further includes:

[0042] The plate body 6 is inclined and fittingly arranged above the rotating frame 2. The bottom surface of the plate body 6 is set away from the support base 1. Symmetrically distributed guide rails 7 are fixedly connected to the bottom slope of the plate body 6, and the guide rails 7 slidably penetrate through the bottom of the rotating frame 2. A wear part 9 is coaxially arranged at the docking port at the bottom of the plate body 6, and the inner diameter of the wear part 9 is larger than the inner diameter of the docking port at the bottom of the plate body 6 to facilitate contact with the connecting column of the external carriage. A lock hook 10 is arranged below the wear part 9, and the connecting shaft in the middle of the lock hook 10 is rotatably embedded in the inner wall of the plate body 6.

[0043] The buffer sleeve 20 is fixedly connected to the bottom of the support base 1 by bolts at its top. The buffer sleeve 20 is coaxially sleeved on the top of the outer support cylinder 21. Corresponding electromagnets 23 are fixedly embedded at the upper and lower ends of the inner wall of the outer support cylinder 21 respectively. The upper end of a guide rod 22 is coaxially and fixedly connected to the center of the top of the buffer sleeve 20. The lower end face of the guide rod 22 is coaxially and fixedly connected to a main permanent magnet block 26. The guide rod 22 is slidably penetrated through the top of the outer support cylinder 21. A corresponding electromagnet 23 is sleeved on the side wall of the rod body of the guide rod 22. An inner liquid storage cylinder 24 arranged coaxially is fixedly connected to the inner wall of the outer support cylinder 21. Three concentrically arranged ring frames 28 are attached between the outer wall of the main permanent magnet block 26 and the inner wall of the inner liquid storage cylinder 24. A relay mechanism 29 is fitted and embedded in the middle of each of the ring frames 28. The relay mechanism 29 includes a moving plate 2901. The moving plate 2901 is slidably and fittingly arranged on the inner wall of the ring frame 28. A locking head 2904 is fixedly installed in the middle of the side wall of the moving plate 2901. The axis of the locking head 2904 is perpendicular to and intersects with the axis of the ring frame 28.

[0044] The middle cross-section of the guide rail 7 is in a "T" shape. One outer wall of the locking hook 10 is attached to the limiting rod 11, and the other end of the locking hook 10 is attached to the pressure inclined surface of the locking plate 13 to form a limiting structure. Both ends of the limiting rod 11 are fixedly connected to the inner wall of the plate body 6, and an inclined return spring 12 is arranged on the side of the limiting rod 11. Moreover, the connecting piece at one end of the return spring 12 is rotatably connected to the outer wall of the locking hook 10, and the connecting piece at the other end of the return spring 12 is rotatably connected to the inner wall convex column of the plate body 6. When the locking hook 10 is forced to move, the locking hook 10 can stretch the return spring 12. Since the locking plate 13 is fitted and embedded in the inner wall of the plate body 6, and a limiting block 14 is fixedly connected to the outer wall of the locking plate 13 away from the locking hook 10, and the limiting block 14 is embedded in the inner wall of the plate body 6 to form a sliding limiting structure. Swing arms 15 are slidably arranged at the bottoms of the plate body 6 and the sliding rod 18, and the sliding rod 18 slidably penetrates through the side wall of the plate body 6. The bottom end of the swing arm 15 is rotatably embedded in the inner wall of the plate body 6. At this time, the end of the locking hook 10 will be far away from the locking plate 13, enabling the locking plate 13 to move. The first convex shaft 16 and the second convex shaft 17 are respectively fitted and embedded in the guide grooves opened in the middle and top of the swing arm 15. The first convex shaft 16 is fixedly connected to the side of the locking plate 13 close to the limiting block 14, and the second convex shaft 17 is fixedly connected to the side wall of the end of the sliding rod 18. A moving end of an auxiliary cylinder 34 is rotatably connected to the side of the sliding rod 18 close to the second convex shaft 17, and the fixed end of the auxiliary cylinder 34 is rotatably installed on the inner wall of the plate body 6. A tension spring 19 in a stretched state is sleeved outside the auxiliary cylinder 34, and the tension spring 19 is fixedly connected between the fixed end and the moving end of the auxiliary cylinder 34. At this time, the tension spring 19 will pull the sliding rod 18 to move through the reset action. The sliding rod 18 drives the swing arm 15 to move through the second convex shaft 17, and the swing arm 15 will drive the locking plate 13 to pop out of the plate body 6 through the first convex shaft 16, thereby locking the locking hook 10. Since the semi-circular convex block at the head of the bearing shaft 3 is attached to the outer wall of the corresponding support seat 1, and a positioning pin 5 for limiting is slidably penetrated through the side wall of the tail of the bearing shaft 3. Spring buffers 8 are symmetrically distributed below the plate body 6, and the moving end of the spring buffer 8 is rotatably connected to the top of the inclined surface of the plate body 6, and the convex shaft at the bottom of the spring buffer 8 is rotatably embedded in the side wall of the support seat 1. When the connected carriage generates an impact force, the spring buffer 8 can perform a buffering function.

[0045] Thrust sleeves 27 are fixedly sleeved on both ends of the side walls of the main permanent magnet block 26 and the ring frame 28 coaxially, and the inclined surfaces of the thrust sleeves 27 are arranged facing the inclined surfaces on the corresponding auxiliary permanent magnet rings 31. An oil discharge groove 32 is formed at the outer edge of one end of the auxiliary permanent magnet ring 31 away from the ring frame 28, and the oil discharge grooves 32 are distributed equiangularly on the auxiliary permanent magnet ring 31, and the oil discharge grooves 32 are in a triangular structure. A lifting rod 2907 is fixedly connected to the side of the control frame 2906 away from the force receiving block 2905, and the lifting rod 2907 is slidably installed on the inner walls of the ring frame 28 and the auxiliary permanent magnet ring 31. And an arc-shaped plate 2908 is slidably penetrated and installed at the bottom inclined surface of the auxiliary permanent magnet ring 31 coaxially. The arc-shaped plate 2908 faces the corresponding thrust sleeve 27. An arc-shaped plate 2908 is fixedly connected to the outer wall of the end of the lifting rod 2907 away from the control frame 2906. When the moving thrust sleeve 27 can push the arc-shaped plate 2908, the arc-shaped plate 2908 will drive the lifting rod 2907 to move synchronously. And guide columns 2902 symmetrically distributed up and down are slidably penetrated through the moving plate 2901, and both ends of the guide columns 2902 are fixedly connected to the inner wall of the ring frame 28. And a compression spring 2903 is sleeved on the guide columns 2902. A compression spring 2903 is fixedly connected between the side of the moving plate 2901 away from the locking head 2904 and the inner wall of the ring frame 28. And force receiving blocks 2905 are fixedly connected to the upper and lower ends of the moving plate 2901 respectively. And the force receiving blocks 2905 are attached to the inner wall of the control frame 2906. And the outer wall of the control frame 2906 is slidably installed on the inner wall of the ring frame 28. The convex shafts on both sides of the force receiving block 2905 are slidably inserted into the inclined grooves formed on the control frame 2906. At this time, the lifting rod 2907 will drive the force receiving block 2905 to move through the control frame 2906, and the force receiving block 2905 will drive the moving plate 2901 to move. Since positioning ring grooves 30 are formed in the middle of the inner walls of the ring frame 28 and the inner liquid storage cylinder 24, and corresponding locking heads 2904 are fitted and embedded in the positioning ring grooves 30 to form a locking structure. And the heights of the three concentric ring frames 28 increase step by step from the inside to the outside. Both ends of the upper and lower parts of the ring frame 28 are coaxially and fixedly connected with auxiliary permanent magnet rings 31. The auxiliary permanent magnet rings 31 are coaxially arranged opposite to the corresponding electromagnets 23. The moving plate 2901 will drive the locking head 2904 to disengage from the positioning ring groove 30, so that the corresponding auxiliary permanent magnet ring 31 can move synchronously with the main permanent magnet block 26.

[0046] An outer buffer spring 33 is fixedly connected between the lower end surface of the buffer sleeve 20 and the bottom of the outer support cylinder 21, and the outer buffer spring 33 is coaxially sleeved on the side wall of the outer support cylinder 21. An oil reflux space is left between the inner wall of the outer support cylinder 21 and the outer wall of the inner liquid storage cylinder 24, and the upper and lower side walls of the inner liquid storage cylinder 24 are provided with through reflux holes 25 distributed at equal angles, and corresponding electromagnets 23 are coaxially fixedly installed in the inner walls of the upper and lower ends of the inner liquid storage cylinder 24. When the secondary permanent magnet ring 31 and the main permanent magnet block 26 move in the inner liquid storage cylinder 24 to squeeze the oil, the oil will flow between the inner liquid storage cylinder 24 and the outer support cylinder 21 through the reflux holes 25 to achieve hydraulic buffering.

[0047] Working principle: When using the magnetic suspension traction seat, first refer to Figures 1-11 When the user inserts the connecting column on the external car into the docking port on the plate body 6, the connecting column on the car will first squeeze and push the lock hook 10. At this time, the lock hook 10 will move in the plate body 6 and stretch the reset spring 12, so that one end of the lock hook 10 moves out of the plate body 6, and the other end of the lock hook 10 will be away from the locking plate 13. At this time, the locking plate 13 will lose the restriction of the lock hook 10. When the lock hook 10 rotates to the set angle, the lock hook 10 will be set horizontally as a whole. In this process, the tension spring 19 in the stretched state will pull the auxiliary cylinder through the reset action. The movable end of the auxiliary cylinder 34 moves, so that the movable end of the auxiliary cylinder 34 can drive the sliding rod 18 to move synchronously, and the sliding rod 18 will drive the swing arm 15 to rotate through the first convex shaft 16. At this time, the swing arm 15 drives the locking plate 13 to move through the first convex shaft 16, so that the locking plate 13 moves out of the plate body 6. The locking plate 13 will be on the side of the horizontal lock hook 10 to form a locking structure, thereby realizing the rapid connection of the carriages. When the locking relationship of the carriages needs to be released, the sliding rod 18 can be pushed to move by starting the auxiliary cylinder 34, or the sliding rod 18 can be directly pulled;

[0048] When an impact force is applied to the plate body 6 in the carriage, the plate body 6 can drive the guide rail 7 to slide adaptively on the rotating frame 2. During this process, the spring buffer 8 at the top of the plate body 6 will buffer while rotating. The buffer oil is stored inside the inner liquid storage cylinder 24 and the inner side of the outer support cylinder 21. The main permanent magnet block 26 and the secondary permanent magnet ring 31 form a magnetic levitation structure between the two electromagnets 23. During the above process, the support seat 1 will further apply the impact force to the buffer sleeve 20, and the outer buffer spring 33 at the bottom of the buffer sleeve 20 will buffer. On the other hand, the buffer sleeve 20 will drive the main permanent magnet block 26 at the bottom to move through the guide rod 22, so that the main permanent magnet block 26 can move inside the corresponding ring frame 28. Since the heights of the three concentric ring frames 28 increase in a stepped manner, when the main permanent magnet block 26 moves inside the innermost ring frame 28, the thrust sleeve 27 on the main permanent magnet block 26 applies pressure to the arc-shaped plate 2908 on the innermost ring frame 28, so that the arc-shaped plate 2908 can drive the lifting rod 2907 to move, causing the lifting rod 2907 to move upward. During this process, the lifting rod 2907 will pull the corresponding control frame 2906 to move synchronously, so that the inclined groove on the control frame 2906 drives the force-bearing block 2905 to move. At this time, the force-bearing block 2905 will drive the moving plate 2901 to move synchronously, so that the moving plate 2901 further compresses the pressure spring 2903. At the same time, the locking head 2904 at the end of the moving plate 2901 will disengage from the corresponding positioning ring groove 30. At this time, the main permanent magnet block 26 just cooperates with the secondary permanent magnet ring 31 on the innermost ring frame 28. And a thrust sleeve 27 is installed on each ring frame 28. The subsequent cooperation process of the secondary permanent magnet ring 31 is carried out according to the above steps. At the same time, the sequential cooperation of the main permanent magnet block 26 and multiple secondary permanent magnet rings 31 realizes a stepped change of the magnetic force in a larger range, thereby improving the buffering effect. When the thrust sleeve 27 moves away from the arc-shaped plate 2908, the pressure spring 2903 will apply pressure to the moving plate 2901 through the reset action, so as to facilitate the subsequent locking head 2904 to re-enter the corresponding positioning ring groove 30. At the same time, when the areas of the main permanent magnet block 26 and multiple secondary permanent magnet rings 31 change, the main permanent magnet block 26 and the corresponding secondary permanent magnet ring 31 will jointly push the oil in the inner liquid storage cylinder 24 to flow. The oil in the inner liquid storage cylinder 24 circulates through the return hole 25 and the outer support cylinder 21, playing a role in further buffering the oil.

[0049] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A magnetic suspension traction seat, comprising: The support seat (1) is symmetrically distributed on both sides of the rotating frame (2); a horizontally arranged bearing shaft (3) is rotatably installed through the bottom of the rotating frame (2); and a shaft sleeve (4) is rotatably installed between the side walls at both ends of the bearing shaft (3) and the inner wall of the support seat (1); It is characterized by further comprising: A plate body (6) is arranged obliquely and in close contact with the top of the rotating frame (2); the bottom surface of the plate body (6) is arranged away from the support seat (1); and symmetrically distributed guide rails (7) are fixedly connected to the inclined surface of the bottom of the plate body (6); and the guide rails (7) are slidably penetrated through the bottom of the rotating frame (2); a wear member (9) is coaxially arranged at the docking interface at the bottom of the plate body (6); and the inner diameter of the wear member (9) is larger than the inner diameter of the docking interface at the bottom of the plate body (6) so as to facilitate contact with the connecting column of the external carriage; a lock hook (10) is arranged below the wear member (9), and the connecting shaft in the middle of the lock hook (10) is rotatably embedded in the inner wall of the plate body (6); The buffer sleeve (20) has a top portion fixedly connected to the bottom portion of the support seat (1) by bolts, the buffer sleeve (20) is coaxially sleeved on the top portion of the outer support cylinder (21), and corresponding electromagnets (23) are respectively fixedly embedded on the upper and lower ends of the inner wall of the outer support cylinder (21), the top center of the buffer sleeve (20) is coaxially fixedly connected to the upper end of the guide rod (22), and the lower end surface of the guide rod (22) is coaxially fixedly connected to the main permanent magnet block (26), and the guide rod (22) is slidably penetrated through the top portion of the outer support cylinder (21), and the side wall of the guide rod (22) is sleeved with a corresponding electromagnet (23), and the outer support A coaxially arranged inner liquid storage cylinder (24) is fixedly connected to the inner wall of the support cylinder (21); three concentrically arranged ring frames (28) are fitted between the outer wall of the main permanent magnet block (26) and the inner wall of the inner liquid storage cylinder (24); a relay mechanism (29) is fitted and embedded in the middle of each of the ring frames (28); the relay mechanism (29) comprises a moving plate (2901); the moving plate (2901) is slidably fitted on the inner wall of the ring frame (28); a locking head (2904) is fixedly installed in the middle of the side wall of the moving plate (2901); and the axis of the locking head (2904) intersects perpendicularly with the axis of the ring frame (28); An outer buffer spring (33) is fixedly connected between the lower end surface of the buffer sleeve (20) and the bottom of the outer support cylinder (21), and the outer buffer spring (33) is coaxially sleeved on the side wall of the outer support cylinder (21), an oil reflux space is reserved between the inner wall of the outer support cylinder (21) and the outer wall of the inner liquid storage cylinder (24), and through reflux holes (25) distributed at equal angles are opened on the upper and lower side walls of the inner liquid storage cylinder (24), and corresponding electromagnets (23) are coaxially fixedly installed in the inner walls of the upper and lower ends of the inner liquid storage cylinder (24).

2. The magnetic suspension traction seat according to claim 1, characterized in that: The semicircular convex block at the head of the load-bearing shaft (3) is fitted on the outer wall of the corresponding support seat (1), and a positioning pin (5) is slidably provided on the side wall of the tail of the load-bearing shaft (3) to play a limiting role. A symmetrically distributed spring buffer (8) is provided below the plate body (6), and the moving end of the spring buffer (8) is rotatably connected to the top of the inclined surface of the plate body (6), and the convex shaft at the bottom of the spring buffer (8) is rotatably embedded in the side wall of the support seat (1).

3. The magnetic suspension traction seat according to claim 1, characterized in that: The middle cross-section of the guide rail (7) is in a "T" shape, the outer wall of one side of the lock hook (10) is fitted on the limit rod (11), and the end of the other side of the lock hook (10) is fitted on the pressure slope of the locking plate (13) to form a limit structure, both ends of the limit rod (11) are fixedly connected to the inner wall of the plate body (6), and an inclined return spring (12) is arranged on the side of the limit rod (11), and the connecting piece at one end of the return spring (12) is rotatably connected to the outer wall of the lock hook (10), and the connecting piece at the other end of the return spring (12) is rotatably connected to the inner wall protrusion of the plate body (6).

4. The magnetic suspension traction seat according to claim 3, characterized in that: The locking plate (13) is fitted and embedded on the inner wall of the plate body (6), and a limiting block (14) is fixedly connected to the outer wall of the locking plate (13) on the side away from the locking hook (10), and the limiting block (14) is embedded on the inner wall of the plate body (6) to form a sliding limiting structure, and the bottom of the plate body (6) and the sliding rod (18) are both slidably provided with a swing arm (15), and the sliding rod (18) is slidably penetrated through the side wall of the plate body (6), and the bottom end of the swing arm (15) is rotatably embedded in the inner wall of the plate body (6).

5. The magnetic suspension traction seat according to claim 4, characterized in that: A first cam (16) and a second cam (17) are respectively fitted and embedded in the guide grooves provided in the middle and top of the swing arm (15), and the first cam (16) is fixedly connected to a side of the locking plate (13) close to the limit block (14), and the second cam (17) is fixedly connected to the side wall of the end of the sliding rod (18), and the side of the sliding rod (18) close to the second cam (17) is rotatably connected to the movable end of the auxiliary cylinder (34), and the fixed end of the auxiliary cylinder (34) is rotatably mounted on the inner wall of the plate body (6), and a tension spring (19) in a stretched state is sleeved on the outer side of the auxiliary cylinder (34), and the tension spring (19) is fixedly connected between the fixed end and the movable end of the auxiliary cylinder (34).

6. The magnetic suspension traction seat according to claim 1, characterized in that: A corresponding positioning ring groove (30) is provided in the middle of the inner wall of the ring frame (28) and the inner liquid storage cylinder (24), and a corresponding locking head (2904) is fitted and embedded in the positioning ring groove (30) to form a locking structure, and the heights of the three concentric ring frames (28) are gradually increased from the inside to the outside, and the upper and lower ends of the ring frame (28) are coaxially fixedly connected to a secondary permanent magnet ring (31), and the secondary permanent magnet ring (31) is coaxially arranged to face the corresponding electromagnet (23).

7. The magnetic suspension traction seat according to claim 1, characterized in that: Both ends of the side walls of the main permanent magnet block (26) and the ring frame (28) are fixedly sleeved with coaxially arranged thrust sleeves (27), and the inclined surface of the thrust sleeve (27) is arranged to face the inclined surface on the corresponding auxiliary permanent magnet ring (31). An oil unloading groove (32) is provided at the outer edge of one end of the auxiliary permanent magnet ring (31) away from the ring frame (28), and the oil unloading grooves (32) are distributed at equal angles on the auxiliary permanent magnet ring (31), and the oil unloading grooves (32) are triangular in structure.

8. The magnetic suspension traction seat according to claim 1, characterized in that: The movable plate (2901) is slidably provided with guide columns (2902) symmetrically distributed up and down, and both ends of the guide columns (2902) are fixedly connected to the inner wall of the ring frame (28), and a pressure spring (2903) is sleeved on the guide columns (2902), and a pressure spring (2903) is fixedly connected between the side of the movable plate (2901) away from the locking head (2904) and the inner wall of the ring frame (28), and corresponding force blocks (2905) are distributed and fixedly connected at both ends of the movable plate (2901), and the force blocks (2905) are attached to the inner wall of the control frame (2906), and the outer wall of the control frame (2906) is slidably installed on the inner wall of the ring frame (28), and the convex shafts on both sides of the force blocks (2905) are slidably inserted in the oblique grooves provided on the control frame (2906).

9. The magnetic suspension traction seat according to claim 8, characterized in that: A lifting rod (2907) is fixedly connected to a side of the control frame (2906) away from the force-bearing block (2905), and the lifting rod (2907) is slidably mounted on the inner walls of the ring frame (28) and the auxiliary permanent magnet ring (31), and a coaxially arranged arc plate (2908) is slidably penetrated and mounted on the bottom inclined surface of the auxiliary permanent magnet ring (31), and the arc plate (2908) is arranged toward the corresponding thrust sleeve (27), and the arc plate (2908) is fixedly connected to the outer wall of one end of the lifting rod (2907) away from the control frame (2906).

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