Uniform damping omnidirectional wheel
By introducing a design in which an annular shock-absorbing pad and a bump-groove match are incorporated into the omnidirectional wheel, the problem of uneven shock absorption in existing omnidirectional wheels is solved, a more stable shock absorption effect is achieved, and mobility performance is improved.
Patent Information
- Application Number
- CN202422759373.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The shock absorption structure of existing omnidirectional wheels is not uniform and stable enough and needs to be improved to increase mobility and reduce vibration.
An annular shock-absorbing pad is set between the wheel frame and the mounting flange of the omnidirectional wheel, and the torque is transmitted through the cooperation of the bumps and grooves. Combined with the shock-absorbing design of rubber, foam or polyurethane materials, a more uniform shock-absorbing effect is achieved.
The omnidirectional wheels have a more uniform and stable shock absorption effect, reducing vibration and noise, and improving mobility and grip.
Smart Images
Figure CN223327249U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of omnidirectional wheels, in particular to an omnidirectional wheel with uniform shock absorption. Background Art
[0002] An omnidirectional wheel is a special wheel that can roll freely in multiple directions. It can be widely used in the fields of robotics, smart wheelchairs, medical equipment, etc.
[0003] One of the basic structures of an omnidirectional wheel is that rolling wheels that can roll laterally are evenly arranged on the entire circumference of the omnidirectional wheel. The rolling wheels include large wheels and small wheels that are staggered with each other, so that lateral rolling can be achieved at any position, greatly reducing friction and increasing mobility.
[0004] In a new design, the frame for mounting the rolling wheels has been redesigned, and therefore, a new shock-absorbing structure is urgently needed. Utility Model Content
[0005] In order to solve the above problems in the prior art, the utility model provides an omnidirectional wheel with uniform shock absorption, so that the shock absorption of the omnidirectional wheel is more uniform and stable.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] In a first aspect, the present invention provides an omnidirectional wheel with uniform shock absorption, comprising a wheel frame, rolling wheels, a hubcap, a mounting flange, and an annular shock-absorbing pad, wherein the rolling wheels are evenly arranged along the circumference of the wheel frame, the hubcaps are positioned and assembled on both sides of the wheel frame and are coaxially arranged with the wheel frame, and the middle apertures of the upper and lower hubcaps are smaller than the middle aperture of the wheel frame;
[0008] The outer edge of the mounting flange and the annular shock-absorbing pad are fixed between the upper and lower wheel hub covers, and the annular shock-absorbing pad is tightly attached between the wheel frame and the mounting flange. The middle chassis of the mounting flange is provided with a driving connection.
[0009] The beneficial effect of the utility model is that the annular shock-absorbing pad is provided between the wheel frame and the mounting flange, so that the shock absorption of the omnidirectional wheel is more uniform and stable.
[0010] Optionally, a plurality of first grooves are evenly distributed along the circumferential direction in the middle area of the wheel frame, a plurality of first protrusions are evenly distributed on the outer circumference of the annular shock-absorbing pad, and a plurality of second protrusions are evenly distributed on the inner circumference, and a second groove is provided on the outer circumference of the mounting flange, the first protrusions and the first grooves are adapted, and the second protrusions and the second grooves are adapted.
[0011] According to the above description, the cooperation between the protrusion and the groove is used to transmit torque, thereby achieving a better shock absorption effect.
[0012] Optionally, the number of the second bumps distributed is greater than the number of the first bumps distributed.
[0013] Optionally, the length of the first bump and the second bump along the circumferential direction is greater than the thickness thereof.
[0014] Optionally, the wheel frame is provided with a plurality of first locking holes running through the upper and lower parts, and the hub cover is provided with second locking holes in areas corresponding to the first locking holes. The hub cover and the wheel frame are positioned and assembled through the first locking holes, the second locking holes and the corresponding locking accessories.
[0015] Optionally, the surface of the scroll wheel has patterns.
[0016] Optionally, the drive connection member is a drive connection hole.
[0017] Optionally, the drive connection is a drive bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a front view of an omnidirectional wheel with uniform shock absorption according to an embodiment of the present utility model;
[0019] Figure 2 This is a disassembled schematic diagram of the wheel frame, hub cover, mounting flange and annular shock-absorbing pad involved in an embodiment of the present utility model.
[0020] Description of reference numerals:
[0021] 100, omnidirectional wheels;
[0022] 1. Wheel frame; 11. First groove; 12. First locking hole;
[0023] 2. Rolling wheel; 21. Large wheel; 22. Small wheel; 23. Pattern;
[0024] 3. Hub cover; 31. Second locking hole;
[0025] 4. Mounting flange; 41. Second groove; 42. Drive connection hole;
[0026] 5. Annular shock-absorbing pad; 51. First protrusion; 52. Second protrusion;
[0027] 6. Lock accessories. DETAILED DESCRIPTION
[0028] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0029] Example 1
[0030] Please refer to Figures 1 to 2 The present invention provides an omnidirectional wheel 100 with uniform shock absorption, comprising a wheel frame 1, rolling wheels 2, a hub cover 3, a mounting flange 4 and an annular shock-absorbing pad 5. The rolling wheels 2 are evenly arranged along the circumference of the wheel frame 1. The rolling wheels 2 include large wheels 21 and small wheels 22, which are staggered on the wheel frame 1 to ensure that the omnidirectional wheel 100 can achieve lateral rolling at any position.
[0031] like Figure 2 As shown, the hub cover 3 is positioned and assembled on both sides of the wheel frame 1 and is coaxially arranged with the wheel frame 1. Specifically, a plurality of first locking holes 12 running through the upper and lower parts are provided on the wheel frame 1, and a second locking hole 31 is provided in the area corresponding to the first locking hole 12 on the hub cover 3. The hub cover 3 and the wheel frame 1 are positioned and assembled through the first locking hole 12, the second locking hole 31 and the corresponding locking accessory 6. In this embodiment, the locking accessory 6 here is a combination of a semi-polished bolt and a hexagonal nut. The hexagonal nut is located in a mounting groove with a hexagonal countersunk groove on one of the hub covers 3. The semi-polished bolt passes through the second locking hole 31 and the hexagonal nut from the mounting groove of the other hub cover 3 and is locked. After locking, the head of the semi-polished bolt is located in the mounting groove of the other hub cover 3, so that the surface of the hub cover 3 is flat and easy to disassemble and assemble.
[0032] In this embodiment, the middle aperture of the upper and lower wheel hub covers 3 is smaller than the middle aperture of the wheel frame 1, and an assembly space is formed inside the wheel frame 1. The outer edges of the annular shock-absorbing pad 5 and the mounting flange 4 are fixed between the upper and lower wheel hub covers 3, and the annular shock-absorbing pad 5 is tightly attached to the wheel frame 1 and the mounting flange 4 in front and back, thereby playing a shock-absorbing role by adding a shock-absorbing pad design. The shock-absorbing pad can be made of rubber shock-absorbing material, foam material, polyurethane material, etc.
[0033] In this embodiment, the middle chassis of the mounting flange 4 is provided with a drive connection member, such as Figure 2 As shown, the mounting flange 4 in this embodiment is provided with a drive connection hole 42 as a drive connection member. In other embodiments, the mounting flange 4 is provided with a drive bearing and a drive keyway as a drive connection member.
[0034] like Figure 2 As can be seen, the central region of the wheel frame 1 has multiple first grooves 11 evenly distributed along the circumference. The corresponding annular shock-absorbing pad 5 has multiple first bumps 51 evenly distributed on its outer circumference, with the first bumps 51 matching the first grooves 11 one-to-one. Simultaneously, the inner circumference of the annular shock-absorbing pad 5 has multiple second bumps 52 evenly distributed, with the corresponding second grooves 41 provided on its outer circumference. The second bumps 52 match the second grooves 41 one-to-one. Thus, the combination of the bumps and grooves transmits torque, thereby achieving a better shock-absorbing effect. Furthermore, the number of second bumps 52 is greater than the number of first bumps 51, meaning that the bumps on the annular shock-absorbing pad 5 are distributed loosely on the outside and tightly on the inside. Furthermore, the circumferential length of the first and second bumps 51, 52 is greater than their thickness, thereby better transmitting axial torque.
[0035] Therefore, the mounting flange 4 and the annular shock-absorbing pad 5 are both detachably placed in the omnidirectional wheel 100 , and both can be replaced to meet the customized needs of different customers.
[0036] The surface of the rolling wheel 2 has a pattern 23, such as a wavy pattern arranged along the overall rotation direction of the omnidirectional wheel 100 in this embodiment, which can reduce the vibration and noise during forward and sideways walking without affecting the grip of walking.
[0037] In summary, the present invention can make the shock absorption of the omnidirectional wheel 100 more uniform and stable.
[0038] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0039] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. An omnidirectional wheel with uniform shock absorption, characterized in that: The wheel frame comprises a wheel frame, rolling wheels, a hubcap, a mounting flange and an annular shock-absorbing pad, wherein the rolling wheels are evenly arranged along the circumference of the wheel frame, the hubcaps are positioned and assembled on both sides of the wheel frame and are coaxially arranged with the wheel frame, and the middle apertures of the upper and lower hubcaps are smaller than the middle aperture of the wheel frame; The outer edge of the mounting flange and the annular shock-absorbing pad are fixed between the upper and lower wheel hub covers, and the annular shock-absorbing pad is tightly attached between the wheel frame and the mounting flange. The middle chassis of the mounting flange is provided with a driving connection.
2. The omnidirectional wheel with uniform shock absorption according to claim 1, characterized in that: A plurality of first grooves are evenly distributed in the middle area of the wheel frame along the circumferential direction, a plurality of first protrusions are evenly distributed on the outer circumference of the annular shock-absorbing pad, and a plurality of second protrusions are evenly distributed on the inner circumference, and a second groove is provided on the outer circumference of the mounting flange, the first protrusions and the first grooves are adapted, and the second protrusions and the second grooves are adapted.
3. The omnidirectional wheel with uniform shock absorption according to claim 2, characterized in that: The number of the second bumps distributed is greater than the number of the first bumps distributed.
4. The omnidirectional wheel with uniform shock absorption according to claim 2, characterized in that: The length of the first bump and the second bump along the circumferential direction is greater than the thickness thereof.
5. The omnidirectional wheel with uniform shock absorption according to any one of claims 1 to 4, characterized in that: The wheel frame is provided with a plurality of first locking holes running through the upper and lower parts, and the wheel hub cover is provided with second locking holes in the area corresponding to the first locking holes. The wheel hub cover and the wheel frame are positioned and assembled through the first locking holes, the second locking holes and the corresponding locking parts.
6. The omnidirectional wheel with uniform shock absorption according to any one of claims 1 to 4, characterized in that: The surface of the rolling wheel has patterns.
7. The omnidirectional wheel with uniform shock absorption according to any one of claims 1 to 4, characterized in that: The driving connection piece is a driving connection hole.
8. The omnidirectional wheel with uniform shock absorption according to any one of claims 1 to 4, characterized in that: The driving connection member is a driving bearing.