Rolling wheel mounting structure, wheel set and omnidirectional wheel

Abstract

The rolling wheel installation structure comprises a wheel framework, the wheel framework comprises an annular part located in the middle and a plurality of U-shaped lateral parts evenly extending outwards from the periphery of the annular part, lateral installation holes arranged front and back are formed in one side of each lateral part, and the lateral installation holes are communicated with the annular part. Rolling wheel mounting positions for mounting rolling wheels are respectively formed in the U-shaped interiors of the lateral parts and between the adjacent lateral parts; the wheel framework can be split into a plurality of sub-frameworks, and each sub-framework at least comprises a lateral part. According to the utility model, all roller mounting positions can be released on the wheel framework, and the quick mounting of the rolling wheel is realized through the lateral mounting holes on the wheel framework.

Description

Technical Field

[0001] The utility model relates to the technical field of omnidirectional wheels, in particular to a rolling wheel installation structure, a wheel set and an omnidirectional wheel. Background Art

[0002] Omnidirectional wheels are a special wheel design that can move freely and directly in any specified direction on a plane. They are widely used in robots, carts and other fields.

[0003] The omnidirectional wheel has a number of rolling wheels evenly spaced around its circumference. These rolling wheels can independently roll sideways, allowing the omnidirectional wheel to roll instead of slide during straight-line movement and turns, significantly reducing friction. In one design, the skeleton can be disassembled to free up all the roller mounting locations. However, this skeleton design differs from the original design where the large and small wheels are fixed in the center of the axle fixing plate. Therefore, a new rolling wheel mounting structure is urgently needed. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a rolling wheel installation structure, a wheel set and an omnidirectional wheel, so as to realize the rapid installation of the rolling wheel.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, the present invention provides a rolling wheel mounting structure, comprising a wheel frame, the wheel frame comprising a central annular portion and a plurality of U-shaped lateral portions extending uniformly outward from the periphery of the annular portion, each of the lateral portions being provided with a lateral mounting hole arranged in a front-to-rear manner on one side, wherein roller mounting positions for mounting a rolling wheel are formed within the U-shaped interior of the lateral portion and between adjacent lateral portions;

[0007] The wheel frame can be split into a plurality of sub-frames, and each sub-frame includes at least one lateral portion.

[0008] The beneficial effect of the utility model is that all roller installation positions can be released on the wheel frame, and the rolling wheels can be quickly installed through the lateral installation holes on the wheel frame.

[0009] Optionally, a first mounting position for mounting a large wheel is formed between adjacent lateral portions, and a second mounting position for mounting a small wheel is formed inside the U-shaped portion of the lateral portion, wherein the inner side of the first mounting position is closer to the annular portion than the inner side of the second mounting position;

[0010] On each of the lateral parts, all the lateral mounting holes located at the front and all the mounting holes located at the back are respectively on a circumference.

[0011] Optionally, one of the two lateral mounting holes located in the front of the lateral portion is an operating hole and the other is a fixing hole, and one of the two lateral mounting holes located in the back is an operating hole and the other is a fixing hole.

[0012] Optionally, the fixing hole is a threaded hole, and the operating hole is a nut hole.

[0013] Optionally, the wheel frame includes two symmetrically arranged and detachably connected half-frames, the separation position of the two half-frames is located in the middle of the roller mounting position, and the half-frames also include a large frame and a small frame that are detachably connected, and the small frame is one of the lateral parts;

[0014] There are at least two roller mounting positions between the separation positions of all the frames, and the nut holes on the lateral portion are distributed along the direction from the separation position of the half frame to the small frame.

[0015] According to the above description, the nut holes on the lateral part are distributed along the direction from the separation position of the half frame to the small frame. On the one hand, there is only one nut hole on each side of the lateral part, thereby ensuring the mechanical properties of the lateral part. On the other hand, the disassembly route from the separation position of the half frame to the direction of the small frame is realized, so that all roller mounting positions can be released as soon as possible, thereby realizing the rapid disassembly and assembly of the rolling wheel.

[0016] In the second aspect, the utility model provides a wheel set, including a rolling wheel and a rolling wheel mounting structure of the first aspect, the rolling wheel including a large wheel and a small wheel, the large wheel is installed on the first mounting position through the lateral mounting hole and the corresponding locking accessory, and the small wheel is installed on the second mounting position through the lateral mounting hole and the corresponding locking accessory.

[0017] Optionally, the scroll wheel includes bearings arranged on both sides of the interior and a rotating shaft arranged in the bearings, and the scroll wheel is mounted in the corresponding lateral mounting hole through a corresponding locking accessory;

[0018] Only at the roller mounting position at the separation position of the two half-frames, a bearing and a rotating shaft arranged in the bearing are respectively arranged on both sides, and a gap is arranged between the two rotating shafts.

[0019] Optionally, a limiting sleeve is further provided between the two sides of the C-shaped lateral portion and the bearing of the small wheel.

[0020] Optionally, the surface of the scroll wheel has patterns.

[0021] In a third aspect, the present invention provides an omnidirectional wheel, comprising the wheel set of the second aspect.

[0022] Among them, the technical effects corresponding to the wheel set provided in the second aspect and the technical effects corresponding to the omnidirectional wheel provided in the third aspect refer to the relevant description of the rolling wheel mounting structure provided in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a rolling wheel mounting structure according to an embodiment of the present utility model;

[0024] Figure 2 This is a disassembled schematic diagram of a rolling wheel mounting structure according to an embodiment of the present utility model;

[0025] Figure 3 This is a disassembly diagram of a wheel set according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic cross-sectional view of a small wheel of a wheel set according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic cross-sectional view of a large wheel in a wheel set according to an embodiment of the present invention, which is not in a position where the half-frame is separated;

[0028] Figure 6 This is a schematic cross-sectional view of a large wheel in a wheel set in an embodiment of the present invention in a position where the half-frame is separated;

[0029] Figure 7 This is a front schematic diagram of an omnidirectional wheel according to an embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 100, omnidirectional wheels;

[0032] 1. Wheel frame;

[0033] 11. Annular portion; 12. Lateral portion; 121. Lateral mounting hole; 1211. Nut hole; 1212. Threaded hole; 13. Roller mounting position; 131. First mounting position; 132. Second mounting position; 14. Drive mounting position; 15. Half frame; 151. Large frame; 152. Small frame;

[0034] 2. Rolling wheel; 21. Large wheel; 22. Small wheel; 23. Bearing; 24. Rotating shaft; 25. Limit sleeve; 26. Pattern;

[0035] 3. Hubcap;

[0036] 4. Lock accessories. DETAILED DESCRIPTION

[0037] 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.

[0038] Example 1

[0039] Please refer to Figures 1 to 7 The present invention provides a rolling wheel mounting structure, including a wheel frame 1, which includes an annular portion 11 in the middle and a plurality of U-shaped lateral portions 12 extending uniformly outward from the periphery of the annular portion 11. Each side of the lateral portion 12 is provided with lateral mounting holes 121 arranged in a front-to-rear manner. Roller mounting positions 13 for mounting a rolling wheel 2 are respectively formed inside the U-shaped interior of the lateral portion 12 and between adjacent lateral portions 12. Specifically, a first mounting position 131 for mounting the large wheel 21 is formed between adjacent lateral portions 12, and a second mounting position 132 for mounting the small wheel 22 is formed inside the U-shaped portion of the lateral portion 12. In this way, the installation of the large wheel 21 and the small wheel 22 can be achieved by reusing the lateral portion 12; the inner side of the first mounting position 131 is closer to the annular portion 11 than the inner side of the second mounting position 132. On each lateral portion 12, all the lateral mounting holes 121 located in the front and all the mounting holes located in the back are respectively on a circumference, so that the large wheel 21 on the first mounting position 131 is closer to the annular portion 11 than the small wheel 22 on the second mounting position 132, so that the outer sides of the two are basically level.

[0040] In order to understand the present invention, the wheel frame 1 capable of releasing all roller mounting positions 13 is described as follows: the wheel frame 1 can be split into multiple sub-frames, each of which includes at least one lateral portion 12. Specifically, the wheel frame 1 includes two symmetrically arranged and detachably connected half-frames 15, the separation position of the two half-frames 15 is located in the middle of the roller mounting position 13, and the half-frames 15 also include a detachably connected large frame 151 and a small frame 152, the small frame 152 is one of the lateral portions 12, and the separation positions of all the frames are at least spaced apart by two roller mounting positions 13. Figures 1 to 2 It can be seen that in this embodiment, there are a total of twelve roller mounting positions 13, corresponding to six large wheels 21 and small wheels 22. Each half-frame 15 has five complete roller mounting positions 13 and two half roller mounting positions 13. Since the separation position is separated by two roller mounting positions 13, only the roller mounting position 13 in the middle of the half-frame 15 needs to be disassembled, that is, the entire wheel frame 1 is as follows. Figure 2As shown, the wheel frame 1 is divided into four sub-frames, and all the rolling wheels 2 can be assembled and disassembled through the lateral mounting holes 121 provided on both sides of the roller mounting position 13 of the wheel frame 1.

[0041] Therefore, in this embodiment, all roller mounting positions 13 on the wheel frame 1 can be released, and the rolling wheel 2 can be quickly installed through the lateral mounting holes 121 on the wheel frame 1 .

[0042] Example 2

[0043] Please refer to Figures 1 to 7 The present invention provides a rolling wheel mounting structure. Based on the first embodiment described above, in this embodiment, one of the two lateral mounting holes 121 on the front of the lateral portion 12 is a working hole, and the other is a fixing hole. Similarly, one of the two lateral mounting holes 121 on the rear is a working hole, and the other is a fixing hole. Specifically, the fixing holes are threaded holes 1212, and the working holes are nut holes 1211. In this case, the nut holes 1211 on the lateral portion 12 are distributed along the direction from the separation point of the half-frame 15 to the small frame 152.

[0044] Therefore, there is only one nut hole 1211 on each side of the lateral portion 12, and the nut hole 1211 is usually larger than the threaded hole 1212. Therefore, there is only a combination of a small hole and a large hole or a combination of two small holes on each side of the lateral portion 12, but no combination of two large holes. This can reduce the weight of the frame as much as possible while ensuring the overall mechanical performance. At the same time, a disassembly route from the separation position of the half-frame 15 toward the small frame 152 is realized, so that all roller mounting positions 13 can be released as soon as possible. Taking the twelve roller mounting positions 13 of this embodiment as an example, each side of the half-frame 15 has two separation positions, upper and lower. Even if the roller mounting position 13 reaches the middle position of the half-frame 15, it only takes three disassembly steps, that is, the steps required for disassembly of all the rolling wheels 2 are only one-fourth of the number of roller mounting positions 13, thereby realizing the rapid disassembly and assembly of the rolling wheels 2.

[0045] Example 3

[0046] Please refer to Figures 1 to 7 The utility model provides a wheel set, including a rolling wheel 2 and a rolling wheel mounting structure of embodiment 2. The rolling wheel 2 includes a large wheel 21 and a small wheel 22. The large wheel 21 is installed on the first mounting position 131 through the lateral mounting hole 121 and the corresponding locking accessory 4, and the small wheel 22 is installed on the second mounting position 132 through the lateral mounting hole 121 and the corresponding locking accessory 4.

[0047] like Figures 4 to 6It can be seen that the scroll wheel 2 includes bearings 23 arranged on both sides of the interior and a rotating shaft 24 arranged in the bearing 23, and the scroll wheel 2 is installed in the corresponding lateral mounting hole 121 through the corresponding locking accessory 4; only on the roller mounting position 13 at the separation position of the two half-skeletons 15, there are respectively provided with a bearing 23 and a rotating shaft 24 arranged in the bearing 23 on both sides, and a gap is provided between the two rotating shafts 24, so that the scroll wheel 2 at this position can be assembled by insertion, and when disassembling, the two half-skeletons 15 can pull out the scroll wheel 2 here. Of course, in other embodiments, the roller mounting position 13 at the separation position of the two half-skeletons 15 can also be designed with a rotating shaft 24. In this case, the locking accessory 4 is a component that can be disassembled by pulling, such as a cylindrical locating pin. As shown in FIG. Figure 4 It can be seen that a limiting sleeve 25 is further provided between the two sides of the U-shaped side portion 12 and the bearing 23 of the small wheel 22 .

[0048] This embodiment is described with the separation position of the two half frames 15 being located at the first installation position 131. Figure 4 As shown, the small wheel 22 is installed on the second installation position 132 through its bearing 23, rotating shaft 24, limiting sleeve 25 and corresponding locking accessory 4, as shown in FIG. Figure 5 As shown, the large wheel 21 that is not in the separation position of the two half-frames 15 is installed on the first installation position 131 through its bearing 23, rotating shaft 24 and corresponding locking accessory 4, and referring to Figure 6 It can be seen that when in the first installation position 131 where the two half-frames 15 are separated, the large wheel 21 is supported on the bearings 23, the rotating shaft 24 and the locking attachment 4 on both sides.

[0049] In this embodiment, the locking accessory 4 here takes a semi-polished bolt as an example, and the lateral mounting hole 121 where the head of the semi-polished bolt is located is the nut hole 1211. The threaded portion of the semi-polished bolt passes through the nut hole 1211 and the rotating shaft 24 and is threadedly connected with the threaded hole 1212 on the other side, thereby fixing the rolling wheel 2 to the frame.

[0050] The surface of the rolling wheel 2 has a pattern 26, such as a wavy pattern arranged along the overall rotation direction of the omnidirectional wheel 100 in this embodiment, which can reduce vibration and noise during forward and sideways walking without affecting the grip of walking.

[0051] Example 4

[0052] Please refer to Figures 1 to 7The present invention provides an omnidirectional wheel, including the wheel set of embodiment 3. On this basis, the two half-frames 15 are detachably connected by positioning and assembling with the wheel hub covers 3 on both sides. The wheel hub covers 3 are coaxially arranged with the wheel frame 1. The middle apertures of the upper and lower wheel hub covers 3 are smaller than the middle apertures of the wheel frame 1, and an assembly space is formed inside as a drive mounting position 14 for mounting related components that can drive the omnidirectional wheel 100 to rotate, such as mounting flanges, etc.

[0053] Therefore, in this embodiment, the omnidirectional wheel 100 consisting of six large wheels 21 and six small wheels 22 is taken as an example, and the installation process of the rolling wheel 2 is described as follows:

[0054] (1) The small wheel 22 on the small frame 152 is first assembled on the lateral part 12. For the large wheels 21 on both sides of the position corresponding to the small frame 152, the locking component 4 is first extended into the rotating shaft 24 of the large wheel 21 to fix it to the corresponding lateral part 12. At this time, the small frame 152 with the small wheel 22 is inserted into the end surface with the frustum-like groove on the two large wheels 21. Then, the small frame 152 and the large frame 151 are connected, and the locking component 4 on the large wheels 21 on both sides of the position corresponding to the small frame 152 is locked to the lateral mounting hole 121 of the small frame 152.

[0055] (2) Then, the small wheels 22 on the two side parts 12 on both sides of the large frame 151 are installed, completing the installation of the ten rolling wheels 2 of the two half frames 15 except the separated positions.

[0056] (3) For the two large wheels 21 at the separation position of the half-skeleton 15, first lock the bearings 23 and the rotating shaft 24 to the lateral mounting holes 121 of the two half-skeletons 15 respectively through the locking parts 4, first insert the large wheel 21 into one of the bearings 23, and then align the large wheel 21 with the other bearing 23 when the two half-skeletons 15 are closed. This can realize the installation of the large wheel 21 here and the assembly of the two half-skeletons 15 at the same time.

[0057] (4) The two half-frames 15 are fixed through the hub cover 3 to realize the assembly of the entire omnidirectional wheel 100.

[0058] On the contrary, the hub cover 3 is first disassembled; the two half-frames 15 are pulled apart in half, and the two large wheels 21 at the separation position of the half-frames 15 are taken out; the small wheels 22 on the two side parts 12 on both sides of the large frame 151 are taken out laterally; then the remaining two large wheels 21 on the half-frame 15 are untied, and then the small frame 152 is untied, and the last small wheel 22 is pulled out, and then the remaining two large wheels 21 are taken out to complete the disassembly of the entire omnidirectional wheel 100.

[0059] In summary, the present invention can achieve rapid installation of the rolling wheel 2 when the wheel frame 1 can release all the roller installation positions 13 .

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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. A rolling wheel mounting structure, characterized in that: The wheel frame includes a central annular portion and a plurality of U-shaped lateral portions extending uniformly outward from the periphery of the annular portion. Each side of the lateral portion is provided with a lateral mounting hole arranged in a front-to-rear manner. Roller mounting positions for mounting rolling wheels are formed in the U-shaped interior of the lateral portion and between adjacent lateral portions. The wheel frame can be split into a plurality of sub-frames, and each sub-frame includes at least one lateral portion.

2. The rolling wheel mounting structure according to claim 1, characterized in that: A first mounting position for mounting a large wheel is formed between adjacent lateral portions, and a second mounting position for mounting a small wheel is formed inside the U-shaped portion of the lateral portion, wherein the inner side of the first mounting position is closer to the annular portion than the inner side of the second mounting position; On each of the lateral parts, all the lateral mounting holes located at the front and all the mounting holes located at the back are respectively on a circumference.

3. The rolling wheel mounting structure according to claim 1, characterized in that: Of the two lateral mounting holes located in the front of the lateral portion, one is an operating hole and the other is a fixing hole, and of the two lateral mounting holes located in the back, one is an operating hole and the other is a fixing hole.

4. The rolling wheel mounting structure according to claim 3, characterized in that: The fixing hole is a threaded hole, and the operating hole is a nut hole.

5. The rolling wheel mounting structure according to claim 3, characterized in that: The wheel frame includes two symmetrically arranged and detachably connected half-frames, the separation position of the two half-frames is located in the middle of the roller installation position, and the half-frames also include a large frame and a small frame that are detachably connected, and the small frame is one of the side parts; There are at least two roller mounting positions between the separation positions of all the frames, and the nut holes on the lateral portion are distributed along the direction from the separation position of the half frame to the small frame.

6. A wheel set, characterized in that: It includes a scroll wheel and a scroll wheel mounting structure according to any one of claims 1 to 5, wherein the scroll wheel includes a large wheel and a small wheel, the large wheel is mounted on the first mounting position through the lateral mounting hole and the corresponding locking accessory, and the small wheel is mounted on the second mounting position through the lateral mounting hole and the corresponding locking accessory.

7. A wheelset according to claim 6, characterized in that: The scroll wheel includes bearings arranged on both sides of the interior and a rotating shaft arranged in the bearings, and the scroll wheel is installed in the corresponding lateral mounting hole through the corresponding locking attachment; Only at the roller mounting position at the separation position of the two half-frames, a bearing and a rotating shaft arranged in the bearing are respectively arranged on both sides, and a gap is arranged between the two rotating shafts.

8. The wheel set according to claim 7, characterized in that: A limiting sleeve is further provided between the two sides of the U-shaped side portion and the bearing of the small wheel.

9. The wheel set according to claim 6, characterized in that: The surface of the rolling wheel has patterns.

10. An omnidirectional wheel, characterized in that: A wheelset comprising any one of claims 6 to 9.

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