Easy-to-load and easy-to-remove wheels

Abstract

This utility model belongs to the field of logistics and warehousing technology, and relates to a walking wheel that is easy to load and unload. The easy-to-load and unload walking wheel includes: a base, a support bushing, a transmission bushing assembly, and a walking wheel body; the base is used to pass through a motor drive shaft; the support bushing is sleeved on the motor drive shaft, and one end of the support bushing is fixed to the base; one end of the transmission bushing assembly is rotatably sleeved on the other end of the support bushing, and the other end of the transmission bushing assembly is sleeved, fixed, and drively connected to the motor drive shaft; the outer peripheral wall of the transmission bushing assembly is provided with an extension support plate; the walking wheel body has a web plate inside, the web plate is sleeved on the outer peripheral wall of the transmission bushing assembly, and the surface of the web plate is fixed to the surface of the extension support plate. This utility model is used to solve the problems of easy horizontal deviation and movement of the walking wheel body and low equipment maintenance efficiency caused by cumbersome loading and unloading operations.

Description

Technical Field

[0001] This utility model relates to the field of logistics and warehousing technology, and in particular to a walking wheel that is easy to load and unload. Background Technology

[0002] The common horizontal drive method for ordinary stacker cranes is as follows: a motor directly drives a load-bearing wheel, which is connected to the drive shaft via a key or tapered sleeve. The drive shaft is supported on the wheel box base by a mounted bearing; additional wheels are housed within the wheel box. If the load-bearing wheel is damaged, in addition to removing the wheel box, the key or tapered sleeve, bearing housing, and even the entire drive shaft must be disassembled. This results in repeated adjustments to restore the fit between the load-bearing wheel and the key or tapered sleeve when reinstalling a new load-bearing wheel, making the installation and removal operations cumbersome and significantly impacting equipment maintenance efficiency. Furthermore, the load-bearing wheel is prone to horizontal displacement, further increasing equipment maintenance time. Utility Model Content

[0003] In view of this, the present invention provides a walking wheel that is easy to load and unload, in order to solve the problems of low equipment maintenance efficiency caused by easy horizontal deviation and cumbersome loading and unloading operations in the prior art.

[0004] To achieve one or more of the above objectives or other objectives, this utility model proposes a walking wheel that is easy to load and unload, the walking wheel comprising a base, a support bushing, a transmission bushing assembly and a walking wheel body; The base is used to pass through the motor drive shaft; The support bushing is sleeved on the motor drive shaft, and one end of the support bushing is fixed to the base; One end of the transmission shaft sleeve assembly is rotatably sleeved on the other end of the support shaft sleeve, and the other end of the transmission shaft sleeve assembly is sleeved, fixed, and connected to the motor transmission shaft; the outer peripheral wall of the transmission shaft sleeve assembly is provided with an extension support plate; The walking wheel body has a web plate inside, which is sleeved on the outer peripheral wall of the transmission shaft sleeve assembly, and the surface of the web plate is fixed to the surface of the extension support plate.

[0005] Furthermore, the web plate is provided with a web axis hole and multiple web peripheral holes; the web axis hole is sleeved on the outer peripheral wall of the transmission shaft sleeve assembly; the multiple web peripheral holes are distributed around the outer circumference of the web axis hole; the surface of the extension support plate is provided with multiple extension peripheral holes, and the extension peripheral holes are connected to the web peripheral holes one by one.

[0006] Furthermore, the transmission shaft sleeve assembly includes: a transmission bearing, a transmission hub, and a transmission flange; The inner circumferential wall of the transmission bearing is attached to the other shaft end of the support bushing; The inner peripheral wall of the transmission hub is attached to the outer peripheral wall of the transmission bearing, and the extended support plate is provided on the outer peripheral wall of the transmission hub. One end of the transmission flange is fixed to one end of the transmission hub, and the other end of the transmission flange is sleeved, fixed, and connected to the motor drive shaft.

[0007] Furthermore, the transmission flange includes: a first connecting cylinder and a second connecting cylinder; The first connecting cylinder is sleeved on the motor drive shaft, and one end of the first connecting cylinder is drively connected to one end of the drive hub. The second connecting cylinder is sleeved and fixed to the motor drive shaft, and the inner circumferential wall of the second connecting cylinder is connected to the motor drive shaft.

[0008] Furthermore, the easy-to-load and detachable walking wheel also includes an expansion sleeve; the second connecting cylinder body is provided with a relief groove and a connecting cylinder hole, the connecting cylinder hole is located in the bottom groove wall of the relief groove, and the connecting cylinder hole is sleeved and connected to the motor drive shaft; the inner wall of the expansion sleeve is abutted and fixed to the motor drive shaft, and the outer wall of the expansion sleeve is abutted and fixed to the side groove wall of the relief groove.

[0009] Furthermore, the inner peripheral wall of the transmission hub is also limited to abutting against one end face of the transmission bearing; the first connecting cylinder includes: a clearance cylinder section, a first limiting cylinder section, and a second limiting cylinder section; One end of the relief cylinder section is fixed to one end of the second connecting cylinder body; One end of the first limiting cylinder section is fixed to the other end of the relief cylinder section, the other end of the first limiting cylinder section is limited and abuts against the other shaft end face of the transmission bearing, and the outer cylinder wall of the first limiting cylinder section abuts against the inner circumferential wall of the transmission hub. The inner wall of the second limiting cylinder section is fixed to the outer wall of the yielding cylinder section, and one end face of the second limiting cylinder section abuts against one shaft end face of the transmission hub.

[0010] Furthermore, the easy-to-load and detachable traveling wheel is also provided with a bearing retainer ring; the bearing retainer ring is sleeved on the motor drive shaft; one end of the bearing retainer ring is fixed to one end of the support shaft sleeve, and the bearing retainer ring is used to prevent the drive bearing from detaching from the support shaft sleeve.

[0011] Furthermore, the outer peripheral wall of the support bushing is provided with a bearing groove; the bottom groove wall of the bearing groove is attached to the inner peripheral wall of the transmission bearing, and the side groove wall of the bearing groove is positioned and abuts against one end face of the transmission bearing. Wherein, one end face of the bearing retaining ring is positioned to abut against the other end face of the transmission bearing.

[0012] Furthermore, the base is provided with mounting holes; the outer peripheral wall of the support bushing is also provided with mounting grooves, the bottom groove wall of the mounting groove is inserted into the mounting holes, and the side groove walls of the mounting groove are fixed to the outer plate surface of the base.

[0013] Furthermore, the easy-to-load and detachable walking wheel is also provided with a support bearing, the inner peripheral wall of the support bearing is attached to the motor drive shaft, and the inner peripheral wall of the support bushing is attached to the outer peripheral wall of the support bearing.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects: This utility model proposes an easy-to-install and remove traveling wheel. A base is used to allow the motor drive shaft to pass through. Then, a support bushing combined with a drive bushing assembly is used to limit the position of the traveling wheel body, preventing horizontal displacement and initially improving equipment maintenance efficiency. Next, the drive bushing assembly establishes the transmission connection between the traveling wheel body and the motor drive shaft. Finally, an extension support plate and web plate, while ensuring the transmission connection between the traveling wheel body and the drive bushing assembly, simplify the installation contact surface of the traveling wheel body, thereby reducing the complexity of loading and unloading operations and further improving equipment maintenance efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] in: Figure 1 This is a schematic diagram of the usage state of the easy-to-load and detach walking wheels in one embodiment of the present invention; Figure 2 This is an exploded structural diagram showing the usage state of the easily detachable walking wheels in one embodiment of the present invention. Figure 3 This is a cross-sectional view of a walking wheel that is easy to load and unload in one embodiment of the present invention; Figure 4 This is a cross-sectional view of the support bushing of the walking wheel that is easy to install and remove, according to one embodiment of the present invention. Figure 5 This is a front view structural schematic diagram of the support bushing for the easily detachable walking wheel in one embodiment of the present invention. Figure 6This is a rear view structural schematic diagram of the support bushing of the walking wheel that is easy to install and remove, according to one embodiment of the present utility model. Figure 7 This is a cross-sectional view of the extension support plate and transmission hub of the walking wheel, which are easy to load and unload, in one embodiment of the present invention. Figure 8 This is a rear-view structural schematic diagram of the extension support plate and transmission hub of the walking wheel, which are easy to load and unload, in one embodiment of the present utility model. Figure 9 This is a schematic diagram of the transmission bearing of a walking wheel that is easy to install and remove, according to one embodiment of the present invention. Figure 10 This is a schematic diagram of the structure of the walking wheel body of the easy-to-install and detach walking wheel in one embodiment of the present utility model; Figure 11 This is a cross-sectional view of the transmission flange of the walking wheel, which is easy to load and unload, in one embodiment of the present invention. Figure 12 This is a front view structural schematic diagram of the transmission flange of the walking wheel, which is easy to load and unload, in one embodiment of the present invention. Figure 13 This is a rear-view structural schematic diagram of the transmission flange of the walking wheel, which is easy to load and unload, in one embodiment of the present invention. Figure 14 This is a schematic diagram of the bearing retaining ring of a walking wheel that is easy to install and remove, according to one embodiment of the present invention.

[0017] Figure label: 10. Base; 11. Mounting hole; 12. First mating hole; 20. Support bushing; 21. Bearing groove; 22. Hub groove; 23. Mounting groove; 231. Second mating hole; 24. Limiting support shaft groove; 241. Stopper groove; 25. Support shaft hole; 26. Retaining ring mating groove; 30. Drive shaft sleeve assembly; 31. Extension support plate; 311. Extension peripheral hole; 32. Drive bearing; 321. Inner sleeve; 322. Ball bearing; 323. Outer sleeve; 33. Drive hub; 331. Limiting shaft groove; 332. Clearance shaft hole; 333. Limiting mating groove; 34. Transmission flange; 341, First connecting cylinder; 3411, Clearance cylinder section; 3412, First limiting cylinder section; 3413, Second limiting cylinder section; 34131, Limiting cylinder hole; 342, Second connecting cylinder; 3421, Clearance groove; 3422, Connecting cylinder hole; 40, Traveling wheel body; 41, Web plate; 411, Web shaft hole; 412, Web circumferential hole; 50, Motor drive shaft; 60, Expansion sleeve; 70, Bearing retaining ring; 71, Retaining ring fixing hole; 80, Support bearing; 90, Support retaining ring; 100, Screw; 110, Coupling; 120, Drive motor. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order; the cold water mentioned in the specification and claims of this invention includes room temperature water.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] Reference Figures 1 to 14 The first embodiment of this application proposes a walking wheel that is easy to load and unload. The walking wheel includes: a base 10, a support bushing 20, a transmission bushing assembly 30, and a walking wheel body 40. The base 10 is used to pass through the motor drive shaft 50; The support bushing 20 is sleeved on the motor drive shaft 50, and one end of the support bushing 20 is fixed to the base 10; One end of the transmission shaft sleeve assembly 30 is rotatably sleeved on the other end of the support shaft sleeve 20, and the other end of the transmission shaft sleeve assembly 30 is sleeved, fixed, and connected to the motor transmission shaft 50; the outer peripheral wall of the transmission shaft sleeve assembly 30 is provided with an extension support plate 31. The walking wheel body 40 has a web plate 41 inside. The web plate 41 is sleeved on the outer peripheral wall of the transmission shaft sleeve assembly 30, and the plate surface of the web plate 41 is fixed to the plate surface of the extension support plate 31.

[0022] In this embodiment, the fixed connection between the support bushing 20 and the base 10, combined with the other shaft end of the transmission bushing assembly 30 being sleeved, fixed, and connected to the motor transmission shaft 50, limits the horizontal position of the extension support plate 31, preventing the walking wheel body 40 from shifting horizontally; thus initially improving equipment maintenance efficiency.

[0023] By utilizing the extension support plate 31 of the drive shaft sleeve assembly 30 and the web plate 41 of the traveling wheel body 40, the installation structure of the traveling wheel body 40 is simplified. Only the fixed installation of the extension support plate 31 and the web plate 41 needs to be completed to complete the installation of the traveling wheel body 40. Only the disassembly of the plate surface of the extension support plate 31 and the plate surface of the web plate 41 needs to be completed to complete the disassembly of the traveling wheel body 40. This eliminates maintenance steps such as repeatedly adjusting the coaxiality of the bearings, reduces the cumbersomeness of assembling and disassembling the traveling wheel body 40, and further improves the equipment maintenance efficiency.

[0024] Specifically, the stacker crane's drive motor 120 is located inside the base 10, and the motor drive shaft 50 is connected to the drive motor 120 via a coupling 110, see... Figure 1 and Figure 2 .

[0025] In this embodiment, when it is necessary to disassemble the drive motor 120, the drive motor 120 is first disassembled from the coupling 110, and then the drive motor 120 is removed from the base 10 to complete the quick disassembly of the drive motor 120.

[0026] Furthermore, the wheel body 40 is a steel wheel. Specifically, the wheel body 40 is made of ductile iron, medium carbon alloy structural steel (specifically 42CrMo), or an iron core coated with polyurethane.

[0027] Specifically, the web plate 41 is fitted onto the outer peripheral wall of the drive shaft sleeve assembly 30 to ensure that the drive shaft sleeve assembly 30 and the traveling wheel body 40 are concentrically arranged.

[0028] Furthermore, the material of the support bushing 20 is 40Cr.

[0029] Reference Figures 1 to 3 , Figure 7 , Figure 8 and Figure 10 The web plate 41 is provided with a web shaft hole 411 and a plurality of web peripheral holes 412; the web shaft hole 411 is sleeved on the outer peripheral wall of the transmission shaft sleeve assembly 30; the plurality of web peripheral holes 412 are distributed around the outer circumference of the web shaft hole 411; the plate surface of the extension support plate 31 is provided with a plurality of extension peripheral holes 311, and the extension peripheral holes 311 and the web peripheral holes 412 are connected in a one-to-one correspondence.

[0030] In this embodiment, the installation and fixation of the extension support plate 31 and the web plate 41 are completed by inserting a screw 100 into one extension peripheral hole 311 and one web peripheral hole 412 of each group. Removing the screw 100 from one extension peripheral hole 311 and one web peripheral hole 412 of each group allows for the disassembly and reconnection of the extension support plate 31 and the web plate 41, enabling the replacement of the new traveling wheel body 40 and improving equipment maintenance efficiency.

[0031] Specifically, both the circumferential hole 412 and the extended circumferential hole 311 are threaded holes.

[0032] Furthermore, the circumferential holes 412 are evenly distributed along the circumferential direction of the circumferential shaft holes 411, further ensuring that the transmission shaft sleeve assembly 30 and the traveling wheel body 40 are concentrically arranged.

[0033] In other embodiments, the web plate 41 has a snap fastener (not shown in the figure) on its surface, and the extension support plate 31 has a screw-in groove (not shown in the figure) on its surface. When the traveling wheel body 40 is rotated, the snap fastener on the web plate 41 is inserted into the screw-in groove, thus completing the installation and fixation of the web plate 41 and the extension support plate 31. When the traveling wheel body 40 is rotated in the opposite direction, the snap fastener on the web plate 41 is disassembled and separated from the extension support plate 31.

[0034] Reference Figures 1 to 3 , Figures 7 to 9 , Figures 11 to 13 The transmission shaft sleeve assembly 30 includes: a transmission bearing 32, a transmission hub 33, and a transmission flange 34; The inner peripheral wall of the transmission bearing 32 is attached to the other shaft end of the support bushing 20; The inner peripheral wall of the transmission hub 33 is attached to the outer peripheral wall of the transmission bearing 32, and the extension support plate 31 is provided on the outer peripheral wall of the transmission hub 33. One end of the transmission flange 34 is fixed to one end of the transmission hub 33, and the other end of the transmission flange 34 is sleeved, fixed, and connected to the motor drive shaft 50.

[0035] In this embodiment, the transmission bearing 32 allows the transmission hub 33 to be rotatably mounted on the support sleeve 20, ensuring that the support sleeve 20 limits the position of the transmission hub 33 in one horizontal direction, while avoiding interference with the transmission connection between the transmission hub 33 and the transmission flange 34. The transmission flange 34 enables the transmission connection between the transmission hub 33 and the motor drive shaft 50, and by being mounted and fixed to the motor drive shaft 50, the transmission flange 34 limits the position of the transmission hub 33 in the other horizontal direction.

[0036] Reference Figures 1 to 3 , Figures 11 to 13 The transmission flange 34 includes: a first connecting cylinder 341 and a second connecting cylinder 342; The first connecting cylinder 341 is sleeved on the motor drive shaft 50, and one end of the first connecting cylinder 341 is connected to one end of the drive hub 33. The second connecting cylinder 342 is sleeved and fixed to the motor drive shaft 50, and the inner peripheral wall of the second connecting cylinder 342 is connected to the motor drive shaft 50.

[0037] In this embodiment, the first connecting cylinder 341 is used to achieve the transmission connection between the transmission hub 33 and the second connecting cylinder 342, and the second connecting cylinder 342 is used to achieve the transmission connection between the first connecting cylinder 341 and the motor drive shaft 50. Furthermore, the second connecting cylinder 342 is sleeved and fixed to the motor drive shaft 50, providing horizontal restraint on the outer shaft end face of the transmission hub 33. Combined with the support bushing 20 providing horizontal restraint on the inner shaft end face of the transmission hub 33, this ensures a stable horizontal installation position of the transmission hub 33, thus preventing horizontal displacement of the traveling wheel body 40.

[0038] Reference Figures 1 to 3 , Figure 11 The easy-to-load and unload walking wheel also includes an expansion sleeve 60; the second connecting cylinder 342 is provided with a relief groove 3421 and a connecting cylinder hole 3422, the connecting cylinder hole 3422 is provided in the bottom groove wall of the relief groove 3421, and the connecting cylinder hole 3422 is sleeved and connected to the motor drive shaft 50; the inner wall of the expansion sleeve 60 is abutted and fixed to the motor drive shaft 50, and the outer wall of the expansion sleeve 60 is abutted and fixed to the side groove wall of the relief groove 3421.

[0039] In this embodiment, the second connecting cylinder 342 is sleeved with the motor drive shaft 50 using the connecting cylinder hole 3422. A tightening sleeve 60 is placed between the motor drive shaft 50 and the relief groove 3421 to achieve a fixed connection between the second connecting cylinder 342 and the motor drive shaft 50.

[0040] Reference Figures 1 to 3 , Figures 11 to 13 The inner peripheral wall of the transmission hub 33 is also limited to abutting against one end face of the transmission bearing 32; the first connecting cylinder 341 includes: a relief cylinder section 3411, a first limiting cylinder section 3412, and a second limiting cylinder section 3413; One end of the relief cylinder section 3411 is fixed to one end of the second connecting cylinder 342; One end of the first limiting cylinder section 3412 is fixed to the other end of the relief cylinder section 3411, the other end of the first limiting cylinder section 3412 is limited and abuts against the other shaft end face of the transmission bearing 32, and the outer cylinder wall of the first limiting cylinder section 3412 abuts against the inner circumferential wall of the transmission hub 33. The inner wall of the second limiting cylinder section 3413 is fixed to the outer wall of the yielding cylinder section 3411, and one end face of the second limiting cylinder section 3413 abuts against one end face of the drive hub 33.

[0041] In this embodiment, the inner peripheral wall of the transmission hub 33 defines the horizontal position of the transmission bearing 32 on the inner side of the shaft end face. The first limiting cylinder section 3412 defines the horizontal position of the transmission bearing 32 on the outer side of the shaft end face, ensuring the concentricity of the first connecting cylinder 341 and the rotating hub. The second limiting cylinder section 3413, in conjunction with the first limiting cylinder section 3412, achieves the installation and fixation of the transmission hub 33.

[0042] Furthermore, the inner peripheral wall of the transmission hub 33 is provided with a limiting shaft groove 331 and a relief shaft hole 332; the limiting shaft groove 331 and the relief shaft hole 332 are coaxially arranged so as to pass together into one end of the support bushing 20; the relief shaft hole 332 is provided in the bottom groove wall of the limiting shaft groove 331, and the bottom groove wall of the limiting shaft groove 331 is limited and abuts against the shaft end face on the inner side of the transmission bearing 32, see Figures 1 to 3 , Figure 7 and Figure 8 .

[0043] Furthermore, the second limiting cylinder section 3413 is provided with multiple limiting cylinder holes 34131, which are evenly distributed along the circumference of the second limiting cylinder section 3413. The outer shaft end face of the transmission hub 33 is provided with multiple limiting mating grooves 333. The limiting mating grooves 333 and the limiting cylinder holes 34131 are respectively connected and intersected to allow the screw 100 to pass through them. Figures 1 to 3 , Figure 7 , Figure 8 , Figures 11 to 13 .

[0044] Reference Figures 1 to 6 , Figure 14 The easy-to-load and detachable walking wheel is also provided with a bearing retainer ring 70; the bearing retainer ring 70 is sleeved on the motor drive shaft 50; one end of the bearing retainer ring 70 is fixed to one end of the support shaft sleeve 20, and the bearing retainer ring 70 is used to prevent the drive bearing 32 from disengaging from the support shaft sleeve 20.

[0045] In this embodiment, the bearing retaining ring 70 is used to limit the position of the transmission hub 33 at the shaft end face on the outer side of the transmission bearing 32, thereby indirectly limiting the position of the transmission hub 33 and further preventing the travel wheel body 40 from shifting in the horizontal direction.

[0046] Specifically, the bearing retaining ring 70 is provided with multiple retaining ring fixing holes 71, which are evenly distributed along the circumference of the bearing retaining ring 70. The outer end face of the support bushing 20 is provided with multiple retaining ring mating grooves 26, which are evenly distributed along the circumference of the support bushing 20. The retaining ring mating grooves 26 and retaining ring fixing holes 71 are arranged in a one-to-one correspondence to pass through, so that the screw 100 can be inserted together; thereby realizing the installation and fixation of the bearing retaining ring 70 and the support bushing 20, see... Figures 1 to 6 , Figure 14 .

[0047] Furthermore, the clearance section 3411 is conical in shape. The end of the clearance section 3411 with a smaller inner diameter is connected and fixed to one end of the second connecting cylinder 342, while the end of the clearance section 3411 with a larger inner diameter is connected and fixed to one end of the first limiting cylinder section 3412. The inner cavity of the clearance section 3411 is used to accommodate the bearing retaining ring 70, see... Figures 1 to 3 , Figures 11 to 13 .

[0048] Furthermore, the clearance section 3411, the first limiting section 3412, and the second connecting cylinder 342 are coaxially connected. The clearance section 3411 is tapered, and the clearance groove 3421 of the second connecting cylinder 342 is fitted with an expansion sleeve 60. The connecting cylinder hole 3422 of the second connecting cylinder 342 has a small clearance fit with the motor drive shaft 50 to ensure concentricity between the second connecting cylinder 342 and the motor drive shaft 50. (See...) Figures 1 to 3 , Figures 11 to 13 .

[0049] Reference Figures 1 to 6 The outer peripheral wall of the support bushing 20 is provided with a limiting bearing groove 21; the bottom groove wall of the limiting bearing groove 21 is attached to the inner peripheral wall of the transmission bearing 32, and the side groove wall of the limiting bearing groove 21 is limited and abuts against one shaft end face of the transmission bearing 32. The bearing retaining ring 70 has one end face that is positioned to abut against the other end face of the transmission bearing 32.

[0050] In this embodiment, the side groove wall of the bearing groove 21 is used to limit the position of the transmission bearing 32 at the inner shaft end face, and the bearing retaining ring 70 is used to limit the position of the transmission bearing 32 at the outer shaft end face. This further prevents the traveling wheel body 40 from shifting in the horizontal direction.

[0051] Specifically, the bearing groove 21 is L-shaped.

[0052] Specifically, the transmission bearing 32 includes an inner sleeve 321, multiple balls 322, and an outer sleeve 323; the inner sleeve 321 is fitted and fixed to the support bushing 20, the multiple balls are disposed between the outer peripheral wall of the inner sleeve 321 and the inner peripheral wall of the outer sleeve 323, and the transmission hub 33 is fitted and fixed to the outer sleeve 323. Figure 9 .

[0053] Furthermore, the bottom wall of the limiting shaft groove 331 abuts against the inner shaft end face of the outer wheel sleeve 323, and the first limiting cylinder section 3412 abuts against the outer shaft end face of the outer wheel sleeve 323. The side wall of the limiting bearing groove 21 abuts against the inner shaft end face of the inner wheel sleeve 321, and the bearing retaining ring 70 abuts against the outer shaft end face of the inner wheel sleeve 321. This ensures the overall structural stability of the transmission bearing 32, indirectly preventing the travel wheel body 40 from shifting in the horizontal direction. Figures 1 to 9 .

[0054] Furthermore, the outer peripheral wall of the support bushing 20 is also provided with a hub limiting groove 22, and a bearing limiting groove 21 is provided on the outer side of the bottom groove wall of the hub limiting groove 22. The inner side of the bottom groove wall of the bearing limiting groove 21 is located inside the clearance shaft hole 332; the side groove wall of the hub limiting groove 22 is located at the shaft end face on the inner side of the transmission hub 33 to prevent the transmission hub 33 from shifting towards the base 10. See Figures 1 to 6 .

[0055] Specifically, the hub groove 22 is L-shaped.

[0056] Reference Figures 1 to 3 The base 10 is provided with mounting holes 11; the outer peripheral wall of the support bushing 20 is also provided with mounting grooves 23, the bottom groove wall of the mounting groove 23 is inserted into the mounting hole 11, and the side groove walls of the mounting groove 23 are fixed to the outer plate surface of the base 10.

[0057] Specifically, the mounting slot 23 is L-shaped.

[0058] In this embodiment, the mounting groove 23 is used to install and fix the support bushing 20 and the base 10.

[0059] Furthermore, the base 10 is provided with multiple first mating holes 12, which are evenly distributed along the circumference of the mounting hole 11. The sidewall of the mounting groove 23 is provided with multiple second mating holes 231, which are evenly distributed along the circumference of the mounting groove 23. The second mating holes 231 are connected to the first mating holes 12 in a one-to-one correspondence. One first mating hole 12 and one second mating hole 231 in each group are connected and simultaneously inserted into the screw 100, thereby completing the installation and fixation of the sidewall of the mounting groove 23 to the base 10, improving the strength of the installation and fixation between the support bushing 20 and the base 10. The bottom wall of the mounting groove 23 is inserted into the mounting hole 11, further improving the strength of the installation and fixation between the support bushing 20 and the base 10, as shown in [reference needed]. Figure 2 .

[0060] Reference Figures 1 to 6 The easy-to-load and detachable walking wheel is also provided with a support bearing 80. The inner peripheral wall of the support bearing 80 is attached to the motor drive shaft 50, and the inner peripheral wall of the support bushing 20 is attached to the outer peripheral wall of the support bearing 80.

[0061] In this embodiment, the support bearing 80 is used to reduce the rotational friction between the support bearing 80 and the motor drive shaft 50, thereby ensuring the normal rotation of the motor drive shaft 50.

[0062] Furthermore, the inner peripheral wall of the support bushing 20 is provided with a limiting support shaft groove 24 and a support shaft hole 25. The limiting support shaft groove 24 and the support shaft hole 25 are coaxially arranged. The support shaft hole 25 is located in the bottom groove wall of the limiting support shaft groove 24. Both the limiting support shaft groove 24 and the support shaft hole 25 are sleeved on the motor drive shaft 50. Figures 1 to 6 .

[0063] Reference Figures 1 to 6 , Figure 14 The easily detachable traveling wheel is also equipped with a support retaining ring 90, and the limiting support shaft groove 24 is provided with a stop groove 241. The outer periphery of the support retaining ring 90 is embedded and fixed in the stop groove 241, and the inner periphery of the support retaining ring 90 is sleeved on the motor drive shaft 50. The support retaining ring 90 is limited and abuts against the inner shaft end face of the support bearing 80, and the side groove wall of the limiting support bearing 80 is limited and abuts against the outer shaft end face of the support bearing 80.

[0064] Furthermore, both the transmission bearing 32 and the support bearing 80 are deep groove ball bearings.

[0065] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A walk wheel for facilitating loading and unloading, characterized by, include: A base for mounting a motor drive shaft; A support bushing is sleeved on the motor drive shaft, and one end of the support bushing is fixed to the base; A drive shaft sleeve assembly, wherein one end of the drive shaft sleeve assembly is rotatably sleeved on the other end of the support shaft sleeve, and the other end of the drive shaft sleeve assembly is sleeved, fixed, and connected to the motor drive shaft; the outer peripheral wall of the drive shaft sleeve assembly is provided with an extension support plate. The walking wheel body has a web inside, which is sleeved on the outer peripheral wall of the transmission shaft sleeve assembly, and the surface of the web is fixed to the surface of the extension support plate.

2. The readily detachable caster wheel of claim 1, wherein The web plate is provided with a web axis hole and multiple web peripheral holes; the web axis hole is sleeved on the outer peripheral wall of the transmission shaft sleeve assembly; the multiple web peripheral holes are distributed around the outer circumference of the web axis hole; the surface of the extension support plate is provided with multiple extension peripheral holes, and the extension peripheral holes are connected to the web peripheral holes one by one.

3. The readily detachable caster wheel of claim 1, wherein The drive shaft sleeve assembly includes: A transmission bearing, wherein the inner peripheral wall of the transmission bearing is attached to the other shaft end of the support bushing; A transmission hub, wherein the inner peripheral wall of the transmission hub is attached to the outer peripheral wall of the transmission bearing, and the extended support plate is disposed on the outer peripheral wall of the transmission hub; A transmission flange, one end of which is fixed to one end of the transmission hub, and the other end of which is sleeved, fixed, and connected to the motor drive shaft.

4. The readily detachable caster wheel of claim 3, wherein The transmission flange includes: A first connecting cylinder is sleeved on the motor drive shaft, and one end of the first connecting cylinder is drively connected to one end of the drive hub. The second connecting cylinder is sleeved and fixed to the motor drive shaft, and the inner circumferential wall of the second connecting cylinder is connected to the motor drive shaft.

5. The readily detachable caster wheel of claim 4, wherein The easy-to-load and unload walking wheel also includes an expansion sleeve; the second connecting cylinder body is provided with a relief groove and a connecting cylinder hole, the connecting cylinder hole is located in the bottom groove wall of the relief groove, and the connecting cylinder hole is sleeved and connected to the motor drive shaft; the inner wall of the expansion sleeve is abutted and fixed to the motor drive shaft, and the outer wall of the expansion sleeve is abutted and fixed to the side groove wall of the relief groove.

6. The readily detachable caster wheel of claim 4, wherein The inner peripheral wall of the transmission hub is also limited to abutting against one end face of the transmission bearing; the first connecting cylinder includes: A clearance cylinder segment, one end of which is fixed to one end of the second connecting cylinder body; The first limiting cylinder section has one end fixed to the other end of the relief cylinder section, the other end of the first limiting cylinder section is limited and abuts against the other shaft end face of the transmission bearing, and the outer cylinder wall of the first limiting cylinder section abuts against the inner circumferential wall of the transmission hub. The second limiting cylinder section has its inner cylinder wall fixed to the outer cylinder wall of the relief cylinder section, and one end face of the second limiting cylinder section abuts against one shaft end face of the transmission hub.

7. The easy-to-load and easy-to-remove traveling wheel according to claim 3, characterized in that, The easy-to-load and detachable traveling wheel is also provided with a bearing retainer ring; the bearing retainer ring is sleeved on the motor drive shaft; one end of the bearing retainer ring is fixed to one end of the support shaft sleeve, and the bearing retainer ring is used to prevent the drive bearing from detaching from the support shaft sleeve.

8. The readily detachable caster wheel of claim 7, wherein, The outer peripheral wall of the support bushing is provided with a bearing groove; the bottom groove wall of the bearing groove is attached to the inner peripheral wall of the transmission bearing, and the side groove wall of the bearing groove is positioned and abuts against one end face of the transmission bearing. Wherein, one end face of the bearing retaining ring is positioned to abut against the other end face of the transmission bearing.

9. The load wheel of claim 1, wherein, The base is provided with mounting holes; the outer peripheral wall of the support bushing is also provided with mounting grooves, the bottom groove wall of the mounting groove is inserted into the mounting holes, and the side groove walls of the mounting groove are fixed to the outer plate surface of the base.

10. The load wheel of claim 1, wherein, The easy-to-load and detachable walking wheel is also equipped with a support bearing. The inner peripheral wall of the support bearing is attached to the motor drive shaft, and the inner peripheral wall of the support bushing is attached to the outer peripheral wall of the support bearing.

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