Large crane walking wheel set and accessories thereof

Abstract

The invention relates to a large crane walking wheel set and accessories thereof, and belongs to the technical field of crane walking wheel sets. According to the characteristics that a crane walking wheel set jolts when moving on a sliding rail, in order to reduce the jolting performance of the walking wheel set on the sliding rail and improve the self-adaptive abutting movement of the wheel and the sliding rail when jolting occurs, an inserting rod is inserted into an inserting hole formed in the outer wall of a wheel body, and the wheel body is inserted into the limiting wheel; an extrusion ring is inserted into a positioning groove, so that an insertion rod and a wheel rotate automatically, a limiting wheel abuts against the side edge of a sliding rail under connection of a compression rod, when the wheel bumps left and right, a swing rod and a rotating plate are driven to incline synchronously due to left-right inclination force of the wheel, and self-adaptive buffering is conducted on a damper; and limiting wheels rotationally arranged on the lifting rods abut against the surfaces of the sliding rails, and the situation that the wheels deviate due to impurities when the wheel sets move on the sliding rails for a long time is prevented.

Description

Technical Field

[0001] This invention relates to the field of crane traveling wheel assembly technology, and more specifically, to a large crane traveling wheel assembly and its accessories. Background Technology

[0002] Wheel sets consist of components such as wheels, axles, bearings, and bearing housings. They are the core components of the crane's running mechanism, and their structural design directly affects the crane's operational stability and lifespan. Wheel sets are widely used in equipment such as gantry cranes, double-girder bridge gantry cranes, and stacker cranes. Single-sided wheel sets are suitable for light-tonnage cranes, while double-sided wheel sets are used for heavy-duty applications.

[0003] In the prior art, a crane traveling wheel assembly with high positioning accuracy, disclosed in CN220300205U, includes a first wheel body and a second wheel body, with the front of the first wheel body in movable contact with the second wheel body. This high-precision crane traveling wheel assembly allows the worker to release the fixation between the first and second wheel bodies by pressing a limiting rod out of a limiting hole with their finger. Subsequently, the second wheel body drives the connecting rod and the limiting block to rotate clockwise along the inside of the limiting groove until it reaches a designated position. Then, the limiting block moves along the inside of the through hole out of the limiting groove, thus releasing the fixation between the first and second wheel bodies. This achieves a detachable function, saving time and effort and facilitating maintenance or repair of the internal structure of the device.

[0004] However, while existing large crane traveling wheel sets can effectively move the crane horizontally, they suffer from lateral swaying due to adhesion to the rails. This swaying also hinders the adaptive adjustment and contact between the wheel and the rails, leading to wheel misalignment and instability. Furthermore, the continuous rotation of the wheel reduces its effectiveness in automatically cleaning impurities from the wheel surface and compromising the self-lubricating effect between the rotating shaft and bearings, failing to meet user needs. Therefore, we propose a new type of large crane traveling wheel set and its accessories. Summary of the Invention

[0005] To address the problems mentioned in the background, this invention provides a large crane traveling wheel assembly to solve the problems raised in the background art, such as the low adaptive adjustment and contact effect between the wheel and the sides of the slide rail when the wheel is bumpy, the multi-functional conversion and use effect of the rotational mechanical energy generated by the wheel, the automatic blowing and cleaning of impurities adsorbed on the wheel surface by the rotational mechanical energy, and the reduced pressure self-lubrication effect between the rotating shaft and the bearing.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A large crane traveling wheel assembly includes a base, a movable slide rail detachably connected to the outer wall of the base, a wheel body fitted to the outer wall of the movable slide rail, a connecting shaft sleeved on the inner wall of the wheel body, a wheel axle fixedly connected to the outer wall of the connecting shaft, and a connecting seat sleeved on the outer wall of the wheel axle. A rod is inserted into the outer wall of the wheel body. A connecting plate is fixedly connected to the outer wall of the rod. A compression ring is fixedly connected to the outer wall of the rod. A positioning groove is provided at the connection between the inner wall of the wheel body and the compression ring. A rotating plate is rotatably connected to the outer wall of the connecting plate. A swing rod is fixedly connected to the rotation center of the rotating plate. A damper body is rotatably connected to the outer wall of the rotating plate and rotatably connected to the outer wall of the connecting plate. A lifting rod is slidably connected to the outer wall of the swing rod and rotatably connected to the outer wall of the connecting plate. A limiting wheel that fits against the bottom of the moving slide rail is rotatably connected to the outer wall of the lifting rod. A compression rod fixedly connected to the bottom of the lifting rod and fixedly connected to the outer wall of the connecting plate is fixedly connected to the bottom of the lifting rod. A blowing assembly located below the wheel body is provided on the outer wall of the connecting seat. The shaft is internally equipped with a lubrication component. Considering the characteristic of the crane's traveling wheel assembly experiencing bumps when moving on the slide rail, to reduce the bumpiness of the traveling wheel assembly on the slide rail and improve the adaptive pressure movement between the wheel and the slide rail when bumps occur, a plug is inserted into a hole on the outer wall of the wheel body, and a compression ring is inserted into a positioning groove. This causes the plug and the wheel to rotate, and with the connection of the compression rod, the limit wheel abuts against the side of the slide rail. When the wheel experiences left-right bumps, the left-right tilting force of the wheel causes the swing rod and rotating plate to tilt synchronously, and the damper provides adaptive buffering. This ensures that the limit wheel rotating on the lifting rod abuts against the slide rail surface, preventing wheel misalignment caused by impurities during prolonged movement on the slide rail.

[0007] Preferably, the outer wall of the connecting plate and the connection part of the lifting rod are provided with a lifting groove, and the outer wall of the swing rod and the connection part of the lifting rod are provided with a limiting groove.

[0008] Preferably, the extrusion ring is made of silicone, the inner wall of the positioning groove has a ring shape that matches the outer wall of the extrusion ring, and the extrusion ring is embedded in the inner wall of the positioning groove and rotates.

[0009] Preferably, there are two sets of limiting grooves, and the positions of the two sets of limiting grooves are equidistant from the rotation center of the swing rod.

[0010] Preferably, the purging assembly includes connecting fan blades and a purging nozzle. A first gear is fixedly connected to the outer wall of the wheel axle, and a second gear meshes with the outer wall of the first gear. A fixed cylinder is fixedly connected to the inner wall of the connecting seat. A connecting fan blade rotatably connected to the inner wall of the fixed cylinder is fixedly connected to the rotation center of the second gear. A rotation shaft extending to the outer wall of the fixed cylinder is fixedly connected to the rotation center of the connecting fan blades. A purging nozzle located above the wheel body is fixedly connected to the outer wall of the fixed cylinder. Based on the characteristic that the walking wheel assembly generates rotational mechanical energy under continuous rotation, in order to improve the synchronous purging and cleaning effect of impurities adsorbed on the wheel surface during walking, the rotation of the wheel axle drives the first gear to rotate. The rotation of the first gear, through the rotation of the second gear, drives the connecting fan blades to rotate continuously within the fixed cylinder. With the connection of the purging nozzle, the wind force generated by the continuous rotation of the connecting fan blades synchronously purges and cleans the impurities adsorbed on the wheel surface, thereby improving the cleanliness of the wheel during long-term operation without the action of power.

[0011] Preferably, the fixed cylinder is provided with a filter screen located on the side connected to the fan blade, and the purging nozzle is connected to the fixed cylinder.

[0012] Preferably, the length of the purging nozzle is adapted to the width of the wheel body.

[0013] Preferably, the lubrication assembly includes a lubrication hole and a flow hole. A connecting disc is fixedly connected to the end of the rotating shaft. A fixing post is fixedly connected to the outer wall of the connecting disc. A sliding rod is slidably connected to the outer wall of the fixing post. A sleeve is fitted onto the outer wall of the connecting shaft. A connecting cylinder is fixedly connected to the outer wall of the sleeve. A piston block is fixedly connected to the outer wall of the sliding rod and slidably connected to the inner wall of the connecting cylinder. A lubricant outer pipe is provided on the outer wall of the connecting cylinder. A connecting pipe located inside the sleeve is fixedly connected to one end of the connecting cylinder. A rotary joint that fits against the inner wall of the rotating shaft is fixedly connected to one end of the connecting pipe. A flow hole is formed on the surface of the rotary joint. A flow hole is formed on the outer wall of the rotating shaft. The lubrication holes, corresponding to the through holes, are designed to pressurize and lubricate the contact area between the rotating shaft and the wheel, taking advantage of the characteristics of the connecting shaft's long-term friction within the wheel body and the synchronous blowing action on the wheel surface to remove dust without power. When the connecting fan blades drive the rotating shaft to rotate continuously, they will cause the connecting disc to rotate synchronously. The rotation of the connecting disc causes the fixed column to slide back and forth in the connecting groove opened on the outer wall of the sliding rod, and causes the piston block to reciprocate and squeeze along the inner wall of the connecting cylinder. At the same time, when the lubricant is injected through the lubricant outer pipe, the lubricant is pressurized and delivered to the rotary joint through the connecting pipe. Through the corresponding opening of the flow holes and lubrication holes, the inner wall of the wheel is fully sealed and lubricated.

[0014] Preferably, the connecting cylinder and the sliding rod are slidably connected, a connecting groove is provided at the connection between the outer wall of the sliding rod and the fixed column, the connecting cylinder and the connecting pipe are interconnected, a lubrication cavity is provided inside the rotary joint, and the flow hole and the lubrication hole are both distributed in a ring shape.

[0015] The large crane traveling wheel accessory provided according to the present invention includes the aforementioned large crane traveling wheel set.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: 1. The limiting wheel and damper body of this invention are designed to reduce the bumpiness of the traveling wheel assembly when it moves on the slide rail, and to improve the adaptive pressing motion of the wheel against the slide rail when bumps occur. The insert rod is inserted into the insertion hole on the outer wall of the wheel body, and the compression ring is inserted into the positioning groove. This causes the insert rod and the wheel to rotate. Under the connection of the compression rod, the limiting wheel abuts against the side of the slide rail. When the wheel bumps from left to right, the tilting force of the wheel will cause the swing rod and the rotating plate to tilt synchronously, and the damper will adaptively buffer the movement. This ensures that the limiting wheel, which is rotated on the lifting rod, abuts against the surface of the slide rail, preventing the wheel from shifting due to impurities when the wheel assembly moves on the slide rail for a long time. 2. Based on the characteristic that the walking wheel assembly generates rotational mechanical energy under continuous rotation, this invention aims to improve the synchronous blowing and cleaning effect on impurities adsorbed on the wheel surface during walking. The rotation of the wheel axle drives the first gear to rotate, and the rotation of the first gear, through the rotation of the second gear, drives the connecting fan blades to rotate continuously within the fixed cylinder. With the connection of the blowing nozzle, the wind force generated by the continuous rotation of the connecting fan blades synchronously blows and cleans the impurities adsorbed on the wheel surface, thereby improving the cleanliness of the wheel during long-term operation without the action of power. 3. Based on the characteristics of the connecting shaft rubbing against the wheel body for a long time, and the effect of synchronously blowing away dust on the wheel surface without power, this invention provides pressure lubrication to the contact area between the rotating shaft and the wheel. When the connecting fan blade drives the rotating shaft to rotate continuously, it will drive the connecting plate to rotate synchronously. The rotation of the connecting plate will cause the fixed column to slide back and forth in the connecting groove opened on the outer wall of the sliding rod, and drive the piston block to reciprocate and squeeze along the inner wall of the connecting cylinder. At the same time, when the lubricant is injected into the lubricant through the lubricant outer pipe, the lubricant is pressurized and delivered to the rotary joint through the connecting pipe. Through the corresponding opening of the flow hole and the lubrication hole, the inner wall of the wheel is fully sealed and lubricated. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall side view structure of the present invention; Figure 3 This is a schematic diagram of the positional distribution structure of the first gear and the second gear of the present invention; Figure 4 This is a schematic diagram of the connection structure between the limiting wheel and the movable slide rail of the present invention; Figure 5 This is a schematic diagram of the connection structure between the compression rod and the lifting rod of the present invention; Figure 6 This is a schematic diagram of the connection structure between the swing rod and the rotating plate of the present invention; Figure 7 This is a schematic diagram of the positional distribution structure of the extrusion ring and positioning groove of the present invention; Figure 8 This is a schematic diagram of the connection structure between the second gear and the connecting fan blade of the present invention; Figure 9 This is a schematic diagram of the piston block position distribution structure of the present invention; Figure 10 This is a schematic diagram of the distribution structure of the flow holes and lubrication holes of the present invention.

[0018] The labels in the attached diagram are: 1. Base; 2. Moving slide rail; 3. Wheel body; 4. Wheel axle; 5. Connecting seat; 6. Insert rod; 7. Connecting plate; 8. Compression ring; 9. Positioning groove; 10. Rotating plate; 11. Swing rod; 12. Damper body; 13. Lifting rod; 14. Limiting groove; 15. Lifting groove; 16. Limiting wheel; 17. First gear; 18. Second gear; 19. Fixed cylinder; 20. Connecting fan blade; 21. Rotating shaft; 22. Filter screen; 23. Blowing nozzle; 24. Connecting plate; 25. Fixed column; 26. Sliding rod; 27. Connecting groove; 28. Connecting cylinder; 29. ​​Piston block; 30. Sleeve; 31. Connecting pipe; 32. Rotary joint; 33. Flow hole; 34. Lubricant outer pipe; 35. Connecting shaft; 36. Lubrication hole; 37. Compression rod. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] Example 1: Please see Figures 1 to 10 This embodiment provides a large crane traveling wheel set, including a base 1, a movable slide rail 2 detachably connected to the outer wall of the base 1, a wheel body 3 attached to the outer wall of the movable slide rail 2, a connecting shaft 35 sleeved on the inner wall of the wheel body 3, a wheel axle 4 fixedly connected to the outer wall of the connecting shaft 35, and a connecting seat 5 sleeved on the outer wall of the wheel axle 4. A rod 6 is inserted into the outer wall of the wheel body 3. A connecting plate 7 is fixedly connected to the outer wall of the rod 6. A compression ring 8 is fixedly connected to the outer wall of the rod 6. A positioning groove 9 is provided at the connection between the inner wall of the wheel body 3 and the compression ring 8. A rotating plate 10 is rotatably connected to the outer wall of the connecting plate 7. A swing rod 11 is fixedly connected to the rotation center of the rotating plate 10. A damper body 12 is rotatably connected to the outer wall of the rotating plate 10 and is rotatably connected to the outer wall of the connecting plate 7. A lifting rod 13 is slidably connected to the outer wall of the swing rod 11 and is slidably connected to the outer wall of the connecting plate 7. A limiting wheel 16 that fits against the bottom of the moving slide rail 2 is rotatably connected to the outer wall of the lifting rod 13. A compression rod 37 that is fixedly connected to the outer wall of the connecting plate 7 is fixedly connected to the bottom of the lifting rod 13. A blowing assembly located below the wheel body 3 is provided on the outer wall of the connecting seat 5. The connecting shaft 3 The internal lubrication component of part 5 is designed to reduce the jolting of the traveling wheel assembly on the slide rail and improve the adaptive pressure movement of the wheel against the slide rail when jolting occurs. A rod 6 is inserted into a hole on the outer wall of the wheel body 3, and a compression ring 8 is inserted into a positioning groove 9. This causes the rod 6 to rotate relative to the wheel. Connected by the compression rod 37, the limiting wheel 16 abuts against the side of the slide rail. When the wheel jolts left or right, the tilting force of the wheel causes the swing rod 11 and the rotating plate 10 to tilt synchronously, providing adaptive buffering for the damper. This ensures that the limiting wheel 16, rotating on the lifting rod 13, abuts against the slide rail surface, preventing wheel misalignment caused by impurities during prolonged movement on the slide rail.

[0021] like Figure 6 As shown, a lifting groove 15 is provided at the connection between the outer wall of the connecting plate 7 and the lifting rod 13, and a limiting groove 14 is provided at the connection between the outer wall of the swing rod 11 and the lifting rod 13. This facilitates the lifting rod 13 to slide in a limited position by the setting of the lifting groove 15 and the limiting groove 14.

[0022] like Figure 7 As shown, the extrusion ring 8 is made of silicone. The inner wall of the positioning groove 9 has a ring shape that matches the outer wall of the extrusion ring 8. The extrusion ring 8 is embedded in the inner wall of the positioning groove 9 and rotates. This setting allows the connecting plate 7 to remain relatively stationary during the rotation of the wheel body 3.

[0023] like Figure 6 As shown, there are two sets of limiting grooves 14. The positions of the two sets of limiting grooves 14 are equidistant from the rotation center of the swing rod 11. This is beneficial to achieve the effect of driving the two sets of lifting rods 13 to be raised left and right alternately by setting two sets of limiting grooves 14 with positions equidistant from the rotation center of the swing rod 11.

[0024] like Figure 8 and 9 As shown, the purging assembly includes a connecting fan blade 20 and a purging nozzle 23. A first gear 17 is fixedly connected to the outer wall of the wheel axle 4, and a second gear 18 meshes with the outer wall of the first gear 17. A fixed cylinder 19 is fixedly connected to the inner wall of the connecting seat 5. A connecting fan blade 20, which is rotatably connected to the inner wall of the fixed cylinder 19, is fixedly connected to the rotation center of the second gear 18. A rotating shaft 21 extending to the outer wall of the fixed cylinder 19 is fixedly connected to the rotation center of the connecting fan blade 20. A purging nozzle 23 located above the wheel body 3 is fixedly connected to the outer wall of the fixed cylinder 19. The purging assembly is designed to withstand the movement of the wheels. The characteristic of generating rotational mechanical energy under continuous rotation is used to improve the synchronous blowing and cleaning effect of impurities adsorbed on the wheel surface during walking. The rotation of the wheel axle 4 drives the first gear 17 to rotate. The rotation of the first gear 17, through the rotation of the second gear 18, drives the connecting fan blade 20 to rotate continuously within the fixed cylinder 19. With the connection of the blowing nozzle 23, the wind force generated by the continuous rotation of the connecting fan blade 20 synchronously blows and cleans the impurities adsorbed on the wheel surface, thereby improving the cleanliness of the wheel during long-term operation without the action of power.

[0025] like Figure 8 and Figure 9 As shown, the fixed cylinder 19 is equipped with a filter screen 22 located on the side connected to the fan blade 20. The blow-off nozzle 23 is connected to the fixed cylinder 19, which facilitates the convenient filtration of impurities carried in the airflow through the filter screen 22 located on the side connected to the fan blade 20 inside the fixed cylinder 19.

[0026] like Figure 8 and Figure 9 As shown, the length of the blowing nozzle 23 is adapted to the width of the wheel body 3, which facilitates the convenient blowing and cleaning of dust adsorbed from all directions on the surface of the wheel body 3.

[0027] like Figure 10As shown, the lubrication assembly includes a lubrication hole 36 and a flow hole 33. A connecting plate 24 is fixedly connected to the end of the rotating shaft 21. A fixing post 25 is fixedly connected to the outer wall of the connecting plate 24. A sliding rod 26 is slidably connected to the outer wall of the fixing post 25. A sleeve 30 is sleeved on the outer wall of the connecting shaft 35. A connecting cylinder 28 is fixedly connected to the outer wall of the sleeve 30. A piston block 29 is fixedly connected to the outer wall of the sliding rod 26 and slidably connected to the inner wall of the connecting cylinder 28. A lubricant outer tube 34 is provided on the outer wall of the connecting cylinder 28. A connecting pipe 31 located inside the sleeve 30 is fixedly connected to one end of the connecting cylinder 28. A rotary joint 32 that fits against the inner wall of the rotating shaft 21 is fixedly connected to one end of the connecting pipe 31. A flow hole 33 is provided on the surface of the rotary joint 32. A flow hole 33 is provided on the outer wall of the rotating shaft 21. The corresponding lubrication holes 36, based on the characteristics of the connecting shaft 35 rubbing against the wheel body 3 for a long time, and the effect of synchronously blowing away dust on the wheel surface without power, provide pressure lubrication to the contact area between the rotating shaft 21 and the wheel. When the connecting fan blade 20 drives the rotating shaft 21 to rotate continuously, it will drive the connecting plate 24 to rotate synchronously. The rotation of the connecting plate 24 drives the fixed column 25 to slide back and forth in the connecting groove 27 opened on the outer wall of the sliding rod 26, and drives the piston block 29 to reciprocate and squeeze along the inner wall of the connecting cylinder 28. At the same time, when the lubricant is injected into the lubricant through the lubricant outer pipe 34, the lubricant is pressurized and delivered to the rotary joint 32 through the connecting pipe 31, and through the corresponding opening of the flow hole 33 and the lubrication hole 36, the inner wall of the wheel is fully sealed and lubricated.

[0028] like Figure 10 As shown, the connecting cylinder 28 and the sliding rod 26 are slidably connected. The outer wall of the sliding rod 26 and the connection part of the fixed column 25 are provided with a connecting groove 27. The connecting cylinder 28 and the connecting pipe 31 are interconnected. The rotary joint 32 has a lubrication cavity inside. The flow hole 33 and the lubrication hole 36 are both distributed in a ring shape, which is conducive to the effect of driving the piston block 29 to reciprocate and pressurize through the sliding connection between the connecting cylinder 28 and the sliding rod 26.

[0029] The large crane traveling wheel accessory provided by the present invention includes a large crane traveling wheel set.

[0030] Working principle: like Figures 1-10As shown, when this large crane traveling wheel assembly is in use, firstly, based on the characteristic that the crane traveling wheel assembly experiences bumps when moving on the slide rail, in order to reduce the bumpiness of the traveling wheel assembly on the slide rail and improve the adaptive pressing movement of the wheel against the slide rail when bumps occur, the insert rod 6 is inserted into the insertion hole opened on the outer wall of the wheel body 3, and the compression ring 8 is inserted into the positioning groove 9, so that the insert rod 6 and the wheel rotate. Under the connection of the compression rod 37, the limit wheel 16 abuts against the side of the slide rail. When the wheel bumps left and right, the left and right tilting force of the wheel will drive the swing rod 11 and the rotating plate 10 to tilt synchronously, and the damper will adaptively buffer, so that the limit wheel 16 rotating on the lifting rod 13 abuts against the surface of the slide rail, preventing the wheel from shifting due to impurities when the wheel assembly moves on the slide rail for a long time. Next, based on the characteristic of the walking wheel assembly generating rotational mechanical energy under continuous rotation, in order to improve the synchronous blowing and cleaning effect of impurities adsorbed on the wheel surface during walking, the rotation of the wheel axle 4 drives the first gear 17 to rotate. The rotation of the first gear 17, through the rotation of the second gear 18, drives the connecting fan blade 20 to rotate continuously within the fixed cylinder 19. With the connection of the blowing nozzle 23, the wind force generated by the continuous rotation of the connecting fan blade 20 synchronously blows and cleans the impurities adsorbed on the wheel surface, thereby improving the cleanliness of the wheel during long-term operation without the action of power. Finally, based on the characteristics of the connecting shaft 35 rubbing against the wheel body 3 for a long time, and the effect of synchronously blowing away dust on the wheel surface without power, the contact part between the rotating shaft 21 and the wheel is pressurized and lubricated. When the connecting fan blade 20 drives the rotating shaft 21 to rotate continuously, it will drive the connecting plate 24 to rotate synchronously. The rotation of the connecting plate 24 drives the fixed column 25 to slide back and forth in the connecting groove 27 opened on the outer wall of the sliding rod 26, and drives the piston block 29 to reciprocate and squeeze along the inner wall of the connecting cylinder 28. At the same time, when the lubricant is injected into the lubricant through the lubricant outer pipe 34, the lubricant is pressurized and delivered to the rotary joint 32 through the connecting pipe 31, and through the corresponding opening of the flow hole 33 and the lubrication hole 36, the effect of fully sealing and lubricating the inner wall of the wheel is achieved.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A set of traveling wheels for a large crane, comprising a base (1), characterized in that: The outer wall of the base (1) is detachably connected to a movable slide rail (2), the outer wall of the movable slide rail (2) is fitted with a wheel body (3), the inner wall of the wheel body (3) is sleeved with a connecting shaft (35), the outer wall of the connecting shaft (35) is fixedly connected with a wheel axle (4), and the outer wall of the wheel axle (4) is sleeved with a connecting seat (5). A rod (6) is inserted into the outer wall of the wheel body (3). A connecting plate (7) is fixedly connected to the outer wall of the rod (6). An extrusion ring (8) is fixedly connected to the outer wall of the rod (6). A positioning groove (9) is provided at the connection between the inner wall of the wheel body (3) and the extrusion ring (8). A rotating plate (10) is rotatably connected to the outer wall of the connecting plate (7). A swing rod (11) is fixedly connected to the rotation center of the rotating plate (10). A rotating rod (11) is rotatably connected to the outer wall of the rotating plate (10). The damper body (12) is connected to the outer wall of the swing rod (11), and the lifting rod (13) is slidably connected to the outer wall of the connecting plate (7). The outer wall of the lifting rod (13) is rotatably connected to the limiting wheel (16) that fits against the bottom of the moving slide rail (2). The bottom of the lifting rod (13) is fixedly connected to the compression rod (37) that is fixedly connected to the outer wall of the connecting plate (7). The outer wall of the connecting seat (5) is provided with a blowing assembly located below the wheel body (3). The interior of the connecting shaft (35) is provided with a lubrication assembly.

2. The traveling wheel assembly of a large crane according to claim 1, characterized in that: The outer wall of the connecting plate (7) and the connection part of the lifting rod (13) are provided with a lifting groove (15), and the outer wall of the swing rod (11) and the connection part of the lifting rod (13) are provided with a limit groove (14).

3. The traveling wheel assembly of a large crane according to claim 1, characterized in that: The extrusion ring (8) is made of silicone. The inner wall of the positioning groove (9) has a ring shape that matches the outer wall of the extrusion ring (8). The extrusion ring (8) is embedded in the inner wall of the positioning groove (9) and rotates.

4. A large crane traveling wheel assembly according to claim 2, characterized in that: The limiting groove (14) is provided in two sets, and the positions of the two sets of limiting grooves (14) are equidistant from the rotation center of the swing rod (11).

5. A large crane traveling wheel assembly according to claim 1, characterized in that: The purging assembly includes a connecting fan blade (20) and a purging nozzle (23). A first gear (17) is fixedly connected to the outer wall of the wheel axle (4). A second gear (18) meshes with the outer wall of the first gear (17). A fixed cylinder (19) is fixedly connected to the inner wall of the connecting seat (5). A connecting fan blade (20) that is rotatably connected to the inner wall of the fixed cylinder (19) is fixedly connected to the rotation center of the second gear (18). A rotating shaft (21) extending to the outer wall of the fixed cylinder (19) is fixedly connected to the rotation center of the connecting fan blade (20). A purging nozzle (23) located above the wheel body (3) is fixedly connected to the outer wall of the fixed cylinder (19).

6. A large crane traveling wheel assembly according to claim 5, characterized in that: The fixed cylinder (19) is equipped with a filter screen (22) located on the side connecting the fan blade (20), and the blow-off nozzle (23) is connected to the fixed cylinder (19).

7. A large crane traveling wheel assembly according to claim 5, characterized in that: The length of the purge nozzle (23) is adapted to the width of the wheel body (3).

8. A large crane traveling wheel assembly according to claim 5, characterized in that: The lubrication assembly includes a lubrication hole (36) and a flow hole (33). A connecting disc (24) is fixedly connected to the end of the rotating shaft (21). A fixing post (25) is fixedly connected to the outer wall of the connecting disc (24). A sliding rod (26) is slidably connected to the outer wall of the fixing post (25). A sleeve (30) is sleeved on the outer wall of the connecting shaft (35). A connecting cylinder (28) is fixedly connected to the outer wall of the sleeve (30). A sliding rod (26) is fixedly connected to the outer wall of the sliding rod (26) and slides against the inner wall of the connecting cylinder (28). The piston block (29) is connected, and the outer wall of the connecting cylinder (28) is provided with a lubricant outer pipe (34). One end of the connecting cylinder (28) is fixedly connected to a connecting pipe (31) located inside the sleeve (30). One end of the connecting pipe (31) is fixedly connected to a rotary joint (32) that fits against the inner wall of the rotating shaft (21). A flow hole (33) is opened on the surface of the rotary joint (32), and a lubrication hole (36) corresponding to the flow hole (33) is opened on the outer wall of the rotating shaft (21).

9. A large crane traveling wheel assembly according to claim 8, characterized in that: The connecting cylinder (28) and the sliding rod (26) are slidably connected. The outer wall of the sliding rod (26) and the connection part of the fixed column (25) are provided with a connecting groove (27). The connecting cylinder (28) and the connecting pipe (31) are interconnected. The rotary joint (32) is provided with a lubrication cavity. The flow hole (33) and the lubrication hole (36) are both distributed in a ring shape.

10. A travel wheel attachment for a large crane, characterized in that: The travel wheel accessories for large cranes include the travel wheel sets for large cranes as described in any one of claims 1 to 9.

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