A floating wheel assembly

Abstract

This application relates to the technical field of wheel assembly, and in particular to a floating wheel assembly device, which includes a device body. The device body includes a base, on which a movable mechanism, a floating support mechanism, and an assembly mechanism are provided. The movable mechanism is used to drive the floating support mechanism to move and rotate horizontally. The floating support mechanism includes a front support component and a rear support component, which are respectively used to elastically support the front and rear ends of the chassis. The assembly mechanism is used to position the wheel and realize the tightening assembly of the wheel. This application, through a combination of floating adaptive support, multi-dimensional movable adjustment, and automated tightening, enables multi-directional flexible adjustment of the chassis during the assembly process. Compared with traditional fixed support structures, it can significantly improve the alignment flexibility between the chassis and the wheel, ensuring accurate assembly position and a smooth assembly process.

Description

Technical Field

[0001] This application relates to the technical field of wheel assembly, and in particular to a floating wheel assembly device. Background Technology

[0002] Supermarket shopping carts are commonly used goods-carrying tools in supermarkets and stores. They mainly consist of a cart body, handles, and a base frame. The four corners of the base frame are usually fitted with casters to allow the shopping cart to maneuver easily. The quality of the wheel and base assembly directly determines the smoothness of the shopping cart's use and its lifespan.

[0003] Currently, the assembly of casters and the base frame in the shopping cart production process is still mainly done manually. Workers use electric wrenches to align the wheels with the mounting holes on the base frame and then manually tighten the screws. Because the base frame lacks self-adaptive support and the assembly position cannot be flexibly adjusted, workers need to support the base frame with one hand and operate the tool with the other during assembly. The base frame is prone to wobbling and shifting, resulting in deviations in the wheel assembly position and uneven tightening force, directly reducing assembly accuracy and product consistency, and thus affecting the overall stability of the cart. Summary of the Invention

[0004] In order to achieve floating adaptive support and multi-directional position adjustment of the shopping cart base frame, and to complete the automated assembly of the casters, this application provides a floating wheel assembly device.

[0005] This application provides a floating wheel assembly device, which adopts the following technical solution: A floating wheel assembly device includes a device body, which includes a base. The base is provided with a movable mechanism, a floating support mechanism, and an assembly mechanism. The movable mechanism is used to drive the floating support mechanism to move horizontally and rotate horizontally. The floating support mechanism includes a front support assembly and a rear support assembly. The front support assembly and the rear support assembly are respectively used to elastically support the front and rear ends of a base frame. The assembly mechanism is used to position the wheel and realize the tightening assembly of the wheel. Both the front support assembly and the rear support assembly can elastically float in the vertical direction so that the assembly position on the base frame is adapted to the wheel height on the assembly mechanism.

[0006] By adopting the above technical solution, the front support assembly and the rear support assembly elastically support the front and rear ends of the chassis respectively, so that the chassis as a whole is in an elastic support state. The movable mechanism drives the front support assembly and the rear support assembly to move and rotate horizontally, which can initially adjust the wheel assembly position on the chassis to be roughly aligned with the wheel on the assembly mechanism. The front support assembly and the rear support assembly can adaptively float elastically in the vertical direction according to the height difference of the chassis's own assembly position, dynamically compensating for the height deviation between the chassis and the wheel. Compared with the existing technology, the movable mechanism, together with the floating support mechanism that can float vertically elastically, can achieve multi-directional flexible adjustment of the chassis during the assembly process. Compared with the traditional fixed support structure, it can greatly improve the alignment flexibility between the chassis and the wheel, ensuring accurate assembly position and smooth assembly process.

[0007] Optionally, the movable mechanism includes a first slide rail, a slide base, a rotating base, and a second slide rail. The first slide rail is fixed to the base, the slide base is slidably mounted on the first slide rail, the rotating base is rotatably mounted on the slide base, the second slide rail is fixed to the rotating base and extends horizontally, and both the front support assembly and the rear support assembly are slidably mounted on the second slide rail.

[0008] By adopting the above technical solution, the slide can slide along the first slide rail to realize the overall horizontal movement of the floating support mechanism, the rotating seat rotates relative to the slide to realize the horizontal rotation of the floating support mechanism, and the front support component and the rear support component slide along the second slide rail to realize the independent adjustment of the distance between them, thereby accurately matching the wheel track requirements of different specifications of the chassis and improving the applicability of the device.

[0009] Optionally, the front support assembly includes a front slider, a first column, a first elastic element, and a front support block that abuts against the front of the base frame. The front slider is slidably engaged with the second slide rail. The first column is fixedly installed on the front slider. The first elastic element is sleeved on the outer periphery of the first column. The front support block is slidably sleeved on the first column and abuts against the top of the first elastic element.

[0010] By adopting the above technical solution, the front support assembly achieves position adjustment through the sliding cooperation of the front slider and the second slide rail. The first column provides sliding guidance for the front support block, and the first elastic element supports the front support block and allows it to float elastically in the vertical direction. The front support block abuts against the front of the base frame to achieve elastic support. When there is a slight height deviation in the assembly position of the base frame, or when the base frame itself is slightly tilted, the front support block can automatically adjust its height under the elastic force of the first elastic element, and always maintain a tight abutment against the front of the base frame to achieve elastic support.

[0011] Optionally, the rear support assembly includes a rear slider, a second column, a second elastic element, and a rear support block that abuts against the rear of the base frame. The rear slider is slidably engaged with the second slide rail. The second column is fixedly installed on the rear slider. The second elastic element is sleeved on the outer periphery of the second column. The rear support block is slidably sleeved on the second column and abuts against the top of the second elastic element.

[0012] By adopting the above technical solution, the rear support component achieves position adjustment through the sliding cooperation of the rear slider and the second slide rail. The second column provides sliding guidance for the rear support block. The second elastic element supports the rear support block and allows it to float elastically in the vertical direction. The rear support block abuts against the rear of the chassis to achieve elastic support. It cooperates with the front support component to form a synchronous elastic floating support, further ensuring that the overall height of the chassis matches the wheel assembly height and improving the assembly and docking accuracy.

[0013] Optionally, brackets are fixedly installed on both the front support block and the rear support block. Each bracket includes a support portion and an anti-detachment portion. The support portion is used to support the bottom of the base frame, and the anti-detachment portion abuts against the side wall of the base frame to prevent the base frame from detaching from the bracket.

[0014] By adopting the above technical solution, the brackets set on the front support block and the rear support block support the bottom of the base frame through the support part, and abut against the side wall of the base frame by the anti-detachment part. This can not only stably support the base frame, but also limit the base frame from falling. In this way, the base frame posture remains stable during elastic floating and position adjustment, thereby improving the reliability and safety of the assembly process.

[0015] Optionally, the assembly mechanism includes an assembly frame, a rotating frame, and a drive source. The assembly frame is fixed on the rotating frame, and the rotating frame is rotatably mounted on the base. The drive source is connected to the rotating frame and drives the rotating frame to rotate so as to assemble the wheel with the base frame. The assembly frame has a limiting through hole for limiting and cooperating with the assembly nut on the wheel.

[0016] By adopting the above technical solution, the drive source drives the rotating frame and assembly frame to rotate. The limiting through hole and the assembly nut on the wheel form a limiting engagement, which can restrict the relative rotation between the assembly nut and the assembly frame. When the assembly frame rotates, it will drive the assembly nut on the wheel to rotate synchronously through the limiting through hole, thereby driving the entire wheel to rotate, and finally realizing the assembly action of the wheel and the base frame. The limiting engagement between the limiting through hole and the assembly nut ensures the stability and reliability of power transmission, avoids slippage and disengagement during transmission, ensures that the wheel can rotate stably and complete the assembly with the base frame smoothly, and improves the smoothness of the assembly action.

[0017] Optionally, a limiting baffle is installed on the rotating frame, and the limiting baffle abuts against the outer edge of the wheel to restrict the circumferential rotation of the wheel during tightening assembly.

[0018] By adopting the above technical solution, the limiting baffle on the rotating frame abuts against the outer edge of the wheel, thereby limiting the wheel circumferentially during the tightening and assembly process. This allows the wheel to rotate synchronously with the rotating frame, preventing the wheel from spinning freely in its own circumferential direction during rotation and ensuring that the tightening and assembly action is stable and reliable.

[0019] Optionally, the assembly mechanism further includes a radial limiting component, which includes an adjusting hole and a limiting screw. The adjusting hole is opened on the rotating frame, and the limiting screw is threaded into the adjusting hole. The end of the limiting screw abuts against the surface of the wheel to keep the wheel in a vertical assembly state.

[0020] By adopting the above technical solution, the radial limiting component achieves extension length adjustment through the threaded engagement of the limiting screw in the adjustment hole of the rotating frame. The end of the limiting screw abuts against the wheel surface, providing radial limiting support for the wheel, keeping the wheel in a vertical assembly state during assembly, avoiding wheel tilting and offset, and further improving assembly accuracy and quality.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention solves the technical problems of low efficiency, poor stability and insufficient precision of manual assembly by combining floating adaptive support, multi-dimensional activity adjustment and automatic tightening. It can make flexible multi-directional adjustment of the chassis during the assembly process, which can greatly improve the alignment flexibility between the chassis and the wheels, and ensure accurate assembly position and smooth assembly process. 2. By sliding the slide block along the first slide rail, the overall horizontal movement of the floating support mechanism is achieved, ensuring that the base frame can be adjusted horizontally to move closer to or further away from the wheels on the assembly mechanism. The rotating seat rotates relative to the slide block to achieve horizontal rotation of the floating support mechanism, ensuring that the base frame can be rotated to align the four corner assembly positions with the wheels on the assembly mechanism. The front support assembly and the rear support assembly slide along the second slide rail to achieve independent adjustment of their distance, thereby accurately matching the wheel track requirements of different base frame specifications and improving the applicability of the device. 3. The radial limiting component uses a limiting screw threaded into the adjusting hole of the rotating frame to adjust the extension length of the limiting screw. The end of the limiting screw abuts against the wheel surface, providing radial limiting support for the wheel, keeping it in a vertical assembly state during assembly, preventing wheel tilting and offset, and further improving assembly accuracy and quality. Attached Figure Description

[0022] Figure 1This is a structural schematic diagram of an embodiment of the present application, used to show the assembly state of the chassis and wheels on the main body of the device; Figure 2 This is a partial structural diagram of an embodiment of this application. Figure 1 This is used to demonstrate the placement of the base frame on the device body; Figure 3 This is a partial structural diagram of an embodiment of this application. Figure 2 This is used to demonstrate the specific structure of the active mechanism and the floating support mechanism; Figure 4 This is a partial structural diagram of an embodiment of this application. Figure 3 This is used to demonstrate the specific structure of the assembly mechanism.

[0023] Reference numerals: 1. Device body; 111. Base; 2. Movable mechanism; 211. First slide rail; 212. Slide seat; 213. Rotating seat; 214. Second slide rail; 2141. Stop block; 2142. Limiting block; 3. Floating support mechanism; 311. Front support assembly; 312. Front slider; 313. First column; 314. First elastic element; 315. Front support block; 321. Rear support assembly; 322. Rear slider; 3 23. Second column; 324. Second elastic element; 325. Rear support block; 4. Assembly mechanism; 411. Assembly frame; 412. Limiting through hole; 421. Rotating frame; 431. Drive source; 441. Limiting baffle; 451. Radial limiting assembly; 452. Adjusting hole; 453. Limiting screw; 5. Fixing block; 6. Bracket; 611. Support part; 612. Anti-detachment part; 7. Base frame; 8. Wheel; 811. Assembly nut. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0025] Example: A floating wheel assembly device, reference Figure 1 and Figure 2The device includes a main body 1, which has a base 111. The base 111 serves as the mounting foundation for the entire main body 1. The base 111 is equipped with a movable mechanism 2, a floating support mechanism 3, and an assembly mechanism 4. The floating support mechanism 3 is mounted on the movable mechanism 2, the base frame 7 is mounted on the floating support mechanism 3, and the wheels 8 are mounted on the assembly mechanism 4. The movable mechanism 2 can drive the floating support mechanism 3 to reciprocate along the length of the base 111, thereby adjusting the horizontal position of the base frame 7. The movable mechanism 2 can also drive the floating support mechanism 3 to rotate, thereby adjusting the angle of the assembly position of the base frame 7. The floating support mechanism 3 includes a front support component 311 and a rear support component 321. The front support component 311 supports the front of the base frame 7, and the rear support component 321 supports the rear of the base frame 7. Both the front support component 311 and the rear support component 321 can float elastically in the vertical direction. They can adapt to the height difference of the base frame 7's own assembly position and float elastically in the vertical direction to dynamically compensate for the height deviation between the base frame 7 and the wheels 8, so as to achieve precise docking between the four corners of the base frame 7 and the wheels 8 on the assembly mechanism 4.

[0026] refer to Figure 1 and Figure 2 The movable mechanism 2 includes a first slide rail 211, a slide seat 212, a rotating seat 213, and a second slide rail 214. The first slide rail 211 is fixedly installed on the base 111 and extends along the length of the base 111. The slide seat 212 is slidably installed on the first slide rail 211 and can make linear reciprocating motion along the first slide rail 211, thereby driving the base frame 7 to achieve horizontal position adjustment. The rotating seat 213 is rotatably installed on the slide seat 212 through a rotating shaft and can rotate relative to the slide seat 212 around the rotating shaft. Through the rotation action, the angle of the mounting position of the base frame 7 can be flexibly changed to ensure that the mounting positions of the four corners of the base frame 7 can be aligned with the wheels 8 on the assembly mechanism 4.

[0027] refer to Figure 2 and Figure 3 The second slide rail 214 is fixedly installed on the rotating seat 213 and is arranged laterally in the horizontal direction. The front support assembly 311 and the rear support assembly 321 are both slidably installed on the second slide rail 214. The front support assembly 311 and the rear support assembly 321 can move closer or further away from each other along the second slide rail 214, so as to freely adjust the support spacing according to the different lengths and wheel gauges of the base frame 7, so that the device can adapt to the support assembly requirements of various models of base frame 7. The two ends of the second slide rail 214 are equipped with stop blocks 2141 to limit the sliding limit positions of the front support assembly 311 and the rear support assembly 321. The middle position of the second slide rail 214 is fixedly installed with a limit block 2142 to limit the minimum distance between the front support assembly 311 and the rear support assembly 321 and prevent them from colliding due to excessive proximity.

[0028] refer to Figure 2 and Figure 3 The front support assembly 311 includes a front slider 312, a first column 313, a first elastic element 314, and a front support block 315. The front slider 312 is slidably engaged with the second slide rail 214 and can move along the length direction of the second slide rail 214. The first column 313 is fixedly mounted on the front slider 312. In this embodiment, the first elastic element 314 is preferably a spring. The first elastic element 314 is sleeved on the outer periphery of the first column 313. The front support block 315 is slidably sleeved on the first column 313 and can slide up and down along the axial direction of the first column 313. A fixing block 5 is fixedly mounted on the first column 313. The lower end of the elastic element 314 abuts against the fixed block 5, and the upper end abuts against the front support block 315, providing a continuous upward elastic support force for the front support block 315. Under the elastic force of the first elastic element 314, the front support block 315 can adaptively float up and down according to the actual height of the front of the chassis 7. When there is a height deviation or slight tilt in the front of the chassis 7, it can automatically compensate for the height difference, so that the installation position of the front of the chassis 7 always maintains the assembly height that matches the wheel 8. Two sets of front support components 311 are symmetrically arranged, corresponding to the support points on the left and right sides of the front of the chassis 7, respectively, to ensure that the front of the chassis 7 is subjected to uniform force.

[0029] refer to Figure 2 and Figure 3 The rear support assembly 321 includes a rear slider 322, a second column 323, a second elastic element 324, and a rear support block 325. The rear slider 322 is also slidably mounted on the second slide rail 214 to accommodate the rear support position requirements of different length base frames 7. The second column 323 is fixedly mounted on the rear slider 322 and is arranged parallel to the first column 313, providing a stable vertical sliding guide for the rear support block 325. In this embodiment, the second elastic element 324 is preferably a spring, and the second elastic element 324 is sleeved on the second column 323. On the outside, the rear support block 325 is slidably sleeved on the second column 323 and can slide up and down along the second column 323. The second column 323 is also fixedly installed with a fixing block 5. The lower end of the second elastic element 324 abuts against the fixing block 5 and the upper end abuts against the rear support block 325, providing vertical elastic support for the rear support block 325. The rear support assembly 321 is also symmetrically arranged in two sets, corresponding to the support points on the left and right sides of the rear of the base frame 7, respectively, to ensure that the rear of the base frame 7 is subjected to balanced force, and works with the front support assembly 311 to achieve stable support and dynamic leveling of the base frame 7.

[0030] refer to Figure 2 and Figure 3A bracket 6 is fixedly installed on both the front support block 315 and the rear support block 325. The bracket 6 is L-shaped and includes an integrally formed support part 611 and an anti-detachment part 612. The support part 611 is in direct contact with the bottom of the base frame 7 and is used to bear the overall weight of the base frame 7, providing stable and reliable planar support for the base frame 7. The anti-detachment part 612 extends upward from the end of the support part 611 and abuts against the side wall of the base frame 7 in the assembled state, providing lateral restraint to the base frame 7 in the horizontal direction. This can effectively limit the base frame 7 from shifting left and right, swaying or even falling off during horizontal movement, angular rotation or vertical elastic floating, so that the base frame 7 always maintains a stable posture throughout the entire assembly process.

[0031] refer to Figure 2 and Figure 3 The front support assembly 311 and the rear support assembly 321 cooperate and work together to form a four-point elastic support structure at both ends of the base frame 7, ensuring that the base frame 7 is stably suspended on the assembly device. The front support assembly 311 and the rear support assembly 321 can synchronously perform vertical elastic floating according to the overall posture of the base frame 7, which can simultaneously compensate for the height difference between the front and rear positions of the base frame 7 and the overall tilt error. Figure 4 This ensures that the installation positions at the four corners of the base frame 7 can achieve stable and precise height alignment with the wheels 8 on the assembly mechanism 4, thereby improving the overall assembly alignment accuracy.

[0032] refer to Figure 1 and Figure 4 The assembly mechanism 4 includes an assembly frame 411, a rotating frame 421, and a drive source 431. The rotating frame 421 is rotatably mounted on the base 111 via bearings and can rotate freely around its own axis. The drive source 431 is fixedly mounted on the base 111. In this embodiment, the output shaft of the drive source 431 is coaxially fixed with the rotating frame 421 to provide a stable rotational driving force to the rotating frame 421. The assembly frame 411 is fixedly mounted on the upper end of the rotating frame 421 and can rotate synchronously with the rotating frame 421. A limiting through hole 412 is provided on the assembly frame 411. The internal contour of the wheel 8 is adapted to the external contour of the mounting nut 811 on the wheel 8. During assembly, the wheel 8 is placed on the mounting frame 411. The limiting through hole 412 and the mounting nut 811 form a circumferential limiting fit, so that the mounting nut 811 cannot rotate relative to the mounting frame 411. When the drive source 431 drives the rotating frame 421 to rotate the mounting frame 411, the mounting nut 811 is rotated synchronously through the limiting through hole 412, which in turn drives the wheel 8 to rotate. The assembly position of the base frame 7 is aligned with the assembly position of the wheel 8, so that the wheel 8 and the base frame 7 can be tightened and assembled.

[0033] refer to Figure 1 and Figure 4A limiting baffle 441 is also fixed on the rotating frame 421. The limiting baffle 441 rotates synchronously with the rotating frame 421. In the assembled state, the inner surface of the limiting baffle 441 abuts against the outer edge of the wheel 8, thereby forming a circumferential constraint on the outer edge of the wheel 8, so that the wheel 8 can rotate synchronously with the rotating frame 421, further enhancing the torque transmission stability during the tightening process.

[0034] refer to Figure 1 and Figure 4 The assembly mechanism 4 is also provided with a radial limiting component 451. The radial limiting component 451 includes an adjustment hole 452 and a limiting screw 453. The adjustment hole 452 is opened through the rotating frame 421. In this embodiment, the adjustment hole 452 is a threaded hole and the adjustment rod is a bolt. By rotating the limiting screw 453, the length of the limiting screw 453 extending out of the inner side of the rotating frame 421 can be adjusted. During the assembly of the wheel 8, the limiting screw 453 is screwed in and its end is stably abutted against the surface of the wheel 8. The wheel 8 is provided with auxiliary support and limiting in the radial direction, so that the wheel 8 always maintains a vertical and upright assembly state during the tightening and rotation process, and avoids the wheel 8 from tilting or shifting due to uneven force or positioning deviation.

[0035] The implementation principle of this application embodiment is as follows: The base frame 7 is placed on the bracket 6, and the front support assembly 311 and the rear support assembly 321 provide four-point elastic support for the front, rear, left and right sides of the base frame 7 respectively. The slide block 212 on the first slide rail 211 slides along the first slide rail 211, driving the base frame 7 to achieve horizontal position adjustment. The rotating seat 213 rotates around the rotating shaft to adjust the assembly angle of the base frame 7. First, one corner of the base frame 7 is initially aligned with the wheel 8 on the assembly mechanism 4. Then, based on the actual height deviation between the base frame 7 and the wheel 8, the base frame 7 floats vertically under the elastic action of the first elastic element 314 and the second elastic element 324. The system dynamically compensates for the height deviation between the base frame 7 and the wheel 8. Then, the switch is turned on, and the drive source 431 drives the rotating frame 421 to rotate. The limiting through hole 412 on the assembly frame 411 and the assembly nut 811 on the wheel 8 form a circumferential limiting fit, driving the assembly nut 811 and the wheel 8 to rotate synchronously, realizing the tightening assembly of the wheel 8 and the base frame 7, and thus realizing the assembly of the wheel 8 at the four corners of the base frame 7. The limiting baffle 441 forms a circumferential constraint on the wheel 8, and the limiting screw 453 abuts against the side of the wheel 8, so that the wheel 8 always maintains a vertical assembly state, and finally completes the precise and stable assembly of the wheel 8 and the base frame 7.

[0036] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A floating wheel assembly device comprising a device body (1), characterised in that: The device body (1) includes a base (111), on which a movable mechanism (2), a floating support mechanism (3) and an assembly mechanism (4) are provided. The movable mechanism (2) is used to drive the floating support mechanism (3) to move horizontally and rotate horizontally. The floating support mechanism (3) includes a front support component (311) and a rear support component (321). The front support component (311) and the rear support component (321) are respectively used to elastically support the front and rear ends of the base frame (7). The assembly mechanism (4) is used to position the wheel (8) and realize the tightening assembly of the wheel (8). Both the front support component (311) and the rear support component (321) can float elastically in the vertical direction so that the assembly position on the base frame (7) is adapted to the height of the wheel (8) on the assembly mechanism (4).

2. A floating wheel assembly as claimed in claim 1, wherein: The movable mechanism (2) includes a first slide rail (211), a slide base (212), a rotating base (213), and a second slide rail (214). The first slide rail (211) is fixed on the base (111), the slide base (212) is slidably mounted on the first slide rail (211), the rotating base (213) is rotatably mounted on the slide base (212), and the second slide rail (214) is fixed on the rotating base (213) and extends horizontally. The front support assembly (311) and the rear support assembly (321) are both slidably mounted on the second slide rail (214).

3. A floating wheel assembly as claimed in claim 2, wherein: The front support assembly (311) includes a front slider (312), a first column (313), a first elastic element (314), and a front support block (315) that abuts against the front of the base frame (7). The front slider (312) is slidably engaged with the second slide rail (214). The first column (313) is fixedly installed on the front slider (312). The first elastic element (314) is sleeved on the outer periphery of the first column (313). The front support block (315) is slidably sleeved on the first column (313) and abuts against the top of the first elastic element (314).

4. A floating wheel assembly as claimed in claim 3, wherein: The rear support assembly (321) includes a rear slider (322), a second column (323), a second elastic element (324), and a rear support block (325) that abuts against the rear of the base frame (7). The rear slider (322) is slidably engaged with the second slide rail (214). The second column (323) is fixedly installed on the rear slider (322). The second elastic element (324) is sleeved on the outer periphery of the second column (323). The rear support block (325) is slidably sleeved on the second column (323) and abuts against the top of the second elastic element (324).

5. A floating wheel assembly as claimed in claim 4, wherein: A bracket (6) is fixedly installed on both the front support block (315) and the rear support block (325). The bracket (6) includes a support part (611) and an anti-detachment part (612). The support part (611) is used to support the bottom of the base frame (7). The anti-detachment part (612) abuts against the side wall of the base frame (7) to prevent the base frame (7) from detaching from the bracket (6).

6. A floating wheel assembly as defined in claim 1, wherein: The assembly mechanism (4) includes an assembly frame (411), a rotating frame (421), and a drive source (431). The assembly frame (411) is fixed on the rotating frame (421), and the rotating frame (421) is rotatably mounted on the base (111). The drive source (431) is connected to the rotating frame (421) and drives the rotating frame (421) to rotate so as to realize the assembly of the wheel (8) and the base frame (7). The assembly frame (411) is provided with a limiting through hole (412) for limiting the engagement with the assembly nut (811) on the wheel (8).

7. A floating wheel assembly as claimed in claim 6, wherein: A limiting baffle (441) is installed on the rotating frame (421), and the limiting baffle (441) abuts against the outer edge of the wheel (8) to restrict the circumferential rotation of the wheel (8) during tightening assembly.

8. A floating wheel assembly as defined in claim 6, wherein: The assembly mechanism (4) further includes a radial limiting component (451), which includes an adjustment hole (452) and a limiting screw (453). The adjustment hole (452) is opened on the rotating frame (421), and the limiting screw (453) is threaded into the adjustment hole (452). The end of the limiting screw (453) abuts against the surface of the wheel (8) to keep the wheel (8) in a vertical assembly state.

Images