A crane truck wheel set

Abstract

The utility model relates to the technical field of hoist, concretely relates to a hoist wheel set convenient to assemble and disassemble, including axle and wheel body, the inside wall of wheel body is provided with the limit slot, and the limit slot is provided with the clamping groove, the axle is equipped with the accommodation cavity, the side wall of axle is provided with the guide cavity, and one end of guide cavity is rotatably connected with the internal thread cylinder, the internal thread cylinder is threadedly connected with the guide cylinder, one end of guide cylinder is fixedly connected with the sliding block, and the guide cylinder is slidably connected with the guide rod, one end of guide rod is fixedly connected with the clamp head, the clamp head and the sliding block are fixedly connected with the spring, and the side of clamp head close to the clamping groove is inclined surface, the utility model drives multiple internal thread cylinders synchronous rotation through the drive mechanism, and the internal thread cylinder drives the guide cylinder to move along the guide cavity, and the guide cylinder drives the clamp head to extend or retract through the sliding block, the spring, the anti -drop limit component and the guide rod, so that the clamp head can embed the clamping groove or retract the guide cavity, thereby can conveniently install or disassemble the wheel body.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a crane wheel assembly that is easy to load and unload. Background Technology

[0002] Crane wheel sets are the core components of the crane's running mechanism, and their assembly reliability directly affects equipment safety. Traditional wheel sets mostly use heat-fitted interference fits or bolted flange connections: interference fits require heating the axle to over 300℃, posing a risk of burns during installation, and disassembly requires strong hydraulic jacking, which can easily damage the mating surfaces and render the axle unusable; while bolted flange connections are removable, they require disassembling each high-strength bolt individually, and the bolts need to be cut after corrosion, increasing maintenance costs. Therefore, existing technologies still have shortcomings and deficiencies. Utility Model Content

[0003] This invention provides a crane wheel assembly that is easy to load and unload, in order to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a crane wheel set that is easy to load and unload, including an axle and a wheel body. An annular limiting groove is provided on the inner side wall of the wheel body, and multiple circumferentially evenly distributed slots are provided in the limiting groove. A receiving cavity is provided in the axle, and multiple guide cavities corresponding to the slots are radially provided on the side wall of the axle. The cross-section of the guide cavity is rectangular. The guide cavity is connected to the receiving cavity. An internal threaded cylinder is rotatably connected to one end of the guide cavity near the receiving cavity. A driving mechanism is provided between the multiple internal threaded cylinders to drive the multiple internal threaded cylinders to rotate synchronously. The internal threaded cylinder is threadedly connected to the guide cylinder. A slider that is slidably connected to the guide cavity is fixedly connected to one end of the guide cylinder away from the internal threaded cylinder. A guide rod is slidably connected inside the guide cylinder. An anti-detachment limiting component is provided between the guide rod and the slider. The end of the guide rod away from the guide cylinder extends to the outside of the slider and is fixedly connected to a clamp. A spring is fixedly connected between the clamp and the slider. The side of the clamp near the slot is inclined, and the inner side of the inclined surface is closer to the slot.

[0005] Preferably, an end cap is fixedly connected to the end of the axle, and the drive mechanism includes a rotating shaft coaxially rotatably connected to the end cap. A handwheel is coaxially fixed to one end of the rotating shaft, and a first bevel gear is coaxially fixed to the other end of the rotating shaft into the receiving cavity. A second bevel gear that meshes with the first bevel gear is coaxially fixed to one end of the internal threaded cylinder near the first bevel gear.

[0006] Preferably, the anti-detachment limiting component includes a first limiting ring and a limiting block. The first limiting ring is fixedly connected to the end of the guide cylinder away from the internal threaded cylinder, the limiting block is located inside the guide cylinder and is slidably connected to the guide cylinder, and the limiting block is fixedly connected to the guide rod.

[0007] Preferably, a second limiting ring is fixedly connected to the axle.

[0008] The beneficial effects of this utility model are as follows: (1) This utility model drives multiple internal threaded cylinders to rotate synchronously through a drive mechanism. The internal threaded cylinders drive the guide cylinder to move along the guide cavity. The guide cylinder drives the chuck to extend or retract through a slider, spring, anti-detachment limiting component and guide rod, so that the chuck can be embedded in the slot or retracted into the guide cavity, thereby facilitating the installation or removal of the wheel body; (2) When the wheel body is pushed to the limit groove and aligned with the guide cavity, the spring pushes the chuck into the limit groove to achieve axial fixation of the wheel body and prevent the wheel body from easily exiting. Then, the wheel body is rotated until the chuck is aligned with the slot. The spring pushes the chuck to initially embed in the slot, thereby providing a basis for the subsequent drive mechanism to push the chuck to lock the wheel body, facilitating the alignment operation before locking the wheel body; (3) By synchronously driving multiple second bevel gears and internal threaded cylinders through the handwheel, rotating shaft, and first bevel gear, multiple chucks can be synchronously driven and the force is uniform, thereby improving the stability and reliability of the wheel set. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the structure of the guide cavity for the retraction of the compression spring of the chuck head in this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the present invention, showing how the spring pushes the locking head into the limiting groove;

[0012] Figure 4 This is a schematic diagram showing the structure of the card head of this utility model fully inserted into the card slot;

[0013] Figure 5 This is a schematic diagram of the structure of the guide cylinder of this utility model, which pulls the clamp head back into the guide cavity.

[0014] Reference numerals: 1. Axle, 2. Wheel body, 3. Limiting groove, 4. Slot, 5. Receiving cavity, 6. Guide cavity, 7. Internal threaded cylinder, 8. Drive mechanism, 81. Rotating shaft, 82. Handwheel, 83. First bevel gear, 84. Second bevel gear, 9. Guide cylinder, 10. Slider, 11. Guide rod, 12. Anti-detachment limiting assembly, 121. First limiting ring, 122. Limiting block, 13. Clipper, 14. Spring, 15. End cap, 16. Second limiting ring. Detailed Implementation

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] like Figure 1-5As shown, this utility model provides a crane wheel assembly that is easy to load and unload, including an axle 1 and a wheel body 2. An annular limiting groove 3 is formed on the inner side wall of the wheel body 2, and multiple circumferentially evenly distributed slots 4 are formed within the limiting groove 3. The axle 1 has a receiving cavity 5, and multiple guide cavities 6 corresponding to the slots 4 are formed radially on the side wall of the axle 1. The guide cavities 6 have a rectangular cross-section and are connected to the receiving cavity 5. An internally threaded cylinder 7 is rotatably connected to one end of the guide cavity 6 near the receiving cavity 5. The internally threaded cylinder 7 is rotatably connected to the guide cavity 6 via a bearing. A mechanism is provided between the multiple internally threaded cylinders 7 to drive them synchronously. The rotating drive mechanism 8 has an internal threaded cylinder 7 threadedly connected to a guide cylinder 9. The end of the guide cylinder 9 away from the internal threaded cylinder 7 is fixedly connected to a slider 10 that is slidably connected to the guide cavity 6. The cross-section of the slider 10 is adapted to the guide cavity 6. A guide rod 11 is slidably connected inside the guide cylinder 9. An anti-disengagement limiting component 12 is provided between the guide rod 11 and the slider 10. The end of the guide rod 11 away from the guide cylinder 9 extends to the outside of the slider 10 and is fixedly connected to a clamp 13. A spring 14 is fixedly connected between the clamp 13 and the slider 10. The spring 14 is sleeved on the guide rod 11. The side of the clamp 13 near the groove 4 is a slope, and the inner side of the slope is set closer to the groove 4.

[0017] Specifically, in the initial state, the inclined surface of the clamp 13 exposes the guide cavity 6. When installing the wheel body 2, as follows... Figure 2-4 As shown, the wheel body 2 is pushed to the left along the axle 1. The wheel body 2 presses against the inclined surface of the clamp 13, causing the clamp 13 to compress the spring 14 and retract into the guide cavity 6. When the wheel body 2 is pushed to the point where the limiting groove 3 is aligned with the guide cavity 6, the spring 14 pushes the clamp 13 into the limiting groove 3. Then, the wheel body 2 is rotated until the clamp 13 is aligned with the groove 4. The spring 14 pushes the clamp 13 to initially embed into the groove 4. Then, the drive mechanism 8 drives the four internal threaded cylinders 7 to rotate synchronously. The rotation of the internal threaded cylinders 7 pushes the guide cylinder 9 to move outward. The slider 10, through the spring 14, pushes the clamp 13 to fully engage in the groove 4, thus forming a mechanical interlock to complete the installation of the wheel body 2. When disassembling the wheel body 2, as follows... Figure 5 As shown, the drive mechanism 8 drives the four internal threaded cylinders 7 to rotate in the opposite direction. The internal threaded cylinders 7 pull the guide cylinder 9 to move inward. The guide cylinder 9 pulls the guide rod 11 and the chuck 13 back into the guide cavity 6 through the slider 10 and the anti-detachment limiting component 12. After the chuck 13 is completely disengaged from the slot 4, the wheel body 2 can be pulled out to the right, which makes it easy to install or remove the wheel body 2.

[0018] In some embodiments, an end cap 15 is fixedly connected to the end of the axle 1. The drive mechanism 8 includes a rotating shaft 81 coaxially rotatably connected to the end cap 15. A handwheel 82 is coaxially fixed to one end of the rotating shaft 81, and the other end of the rotating shaft 81 extends into the receiving cavity 5 and is coaxially fixed to a first bevel gear 83. A second bevel gear 84, meshing with the first bevel gear 83, is coaxially fixed to one end of the internal threaded cylinder 7 near the first bevel gear 83. Specifically, in use, rotating the handwheel 82 drives the four second bevel gears 84 to rotate synchronously through the rotating shaft 81 and the first bevel gear 83, thereby enabling the four internal threaded cylinders 7 to rotate synchronously, ensuring that multiple chucks 13 operate synchronously and are subjected to uniform force, thus improving the stability and reliability of the wheel assembly.

[0019] In some embodiments, the anti-detachment limiting component 12 includes a first limiting ring 121 and a limiting block 122. The first limiting ring 121 is fixedly connected to the end of the guide cylinder 9 away from the internal threaded cylinder 7. The limiting block 122 is located inside the guide cylinder 9 and is slidably connected to the guide cylinder 9. The limiting block 122 is fixedly connected to the guide rod 11. Specifically, in use, when the guide cylinder 9 moves inward, the guide cylinder 9 drives the slider 10 and the first limiting ring 121 to move inward. After the first limiting ring 121 contacts the limiting block 122, the first limiting ring 121 pulls the clamping head 13 inward through the limiting block 122 and the guide rod 11, thereby pulling the clamping head 13 back into the guide cavity 6.

[0020] A second limiting ring 16 is fixedly connected to the axle 1. When the limiting groove 3 is aligned with the guide groove, the second limiting ring 16 abuts against the left side of the wheel body 2 and limits the wheel body 2, thereby ensuring the smooth progress of the installation process.

[0021] In some embodiments, in order to prevent the internal threaded cylinder 7 from turning back and loosening due to operating vibration, a ratchet and pawl mechanism (not shown in the figure) is provided between the rotating shaft 81 and the end cover 15.

[0022] The above embodiments can be combined with each other.

[0023] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A crane wheel assembly that is easy to load and unload, comprising an axle and a wheel body, characterized in that: The inner wall of the wheel body is provided with an annular limiting groove, and multiple circumferentially evenly distributed slots are provided in the limiting groove; the axle is provided with a receiving cavity, and multiple guide cavities corresponding to the slots are provided radially on the side wall of the axle. The cross-section of the guide cavity is rectangular, and the guide cavity is connected to the receiving cavity. An internal threaded cylinder is rotatably connected to one end of the guide cavity near the receiving cavity. A drive mechanism is provided between the multiple internal threaded cylinders to drive the multiple internal threaded cylinders to rotate synchronously. The internal threaded cylinder is threadedly connected to the guide cylinder. A slider that is slidably connected to the guide cavity is fixedly connected to one end of the guide cylinder away from the internal threaded cylinder. A guide rod is slidably connected inside the guide cylinder. An anti-disengagement limiting component is provided between the guide rod and the slider. The end of the guide rod away from the guide cylinder extends to the outside of the slider and is fixedly connected to a clamp. A spring is fixedly connected between the clamp and the slider. The side of the clamp near the slot is inclined, and the inner side of the inclined surface is closer to the slot.

2. The crane wheel assembly for easy loading and unloading according to claim 1, characterized in that: The end of the axle is fixedly connected to an end cover. The drive mechanism includes a rotating shaft coaxially rotatably connected to the end cover. One end of the rotating shaft is coaxially fixed with a handwheel, and the other end of the rotating shaft extends into the receiving cavity and is coaxially fixed with a first bevel gear. The end of the internal threaded cylinder near the first bevel gear is coaxially fixed with a second bevel gear that meshes with the first bevel gear.

3. A crane wheel assembly for easy loading and unloading according to claim 1, characterized in that: The anti-detachment limiting component includes a first limiting ring and a limiting block. The first limiting ring is fixedly connected to the end of the guide cylinder away from the internal threaded cylinder. The limiting block is located inside the guide cylinder and is slidably connected to the guide cylinder. The limiting block is fixedly connected to the guide rod.

4. A crane wheel assembly for easy loading and unloading according to claim 1, characterized in that: A second limiting ring is fixedly connected to the axle.

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