Roller structure for Mecanum wheel

Abstract

The utility model relates to the technical field of Mecanum wheels, and discloses a roller structure for a Mecanum wheel, which comprises two fixing parts, supporting discs are arranged on the opposite sides of the two fixing parts, no less than five roller bodies are arranged between the two supporting discs, and the supporting discs are arranged on the two fixing parts. A connecting assembly is mounted on the outer surface of each roller body and comprises a conical part, a connecting groove, a hemispherical groove cushion, a ball head, a connecting rod, a limiting disc, a sealing sliding ring and an inner threaded ring. According to the roller structure for the Mecanum wheel, through the arrangement of a connecting groove and a hemispherical groove soft cushion, the position of a ball head can be limited, storage and disassembly are convenient, a limiting disc and a conical part can be in threaded connection and installation through an internal thread ring, and therefore during disassembly, limiting of the ball head can be relieved only by rotating the limiting disc, separation is convenient, and the service life of the ball head is prolonged. And the time required for disassembly and assembly is shortened, and the cost required for assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of Mecanum wheels, in particular to a roller structure used for Mecanum wheels. Background Art

[0002] Mecanum wheels are mainly used for omnidirectional movement. This method is based on the principle that there are many wheel axles located around the center wheel, namely rollers, which rotate around the center wheel. Mecanum wheels are often used on turning tables or transport tables in industrial production.

[0003] For example, a crack-proof high-strength roller with Chinese patent number CN218021045U is disclosed. In the utility model, a concave mounting seat is used to set the adjustment gasket in the concave mounting seat to prevent it from falling out. At the same time, a second sealing ring is provided to prevent external impurities from entering through the gap between the adjustment gasket and the concave mounting seat. However, the structure of the utility model is relatively bloated and cumbersome. This arrangement increases the cost of assembling and maintaining the Mecanum wheel roller structure for the staff, and is not conducive to the disassembly, assembly, maintenance and use by the user. Therefore, a roller structure for a Mecanum wheel is proposed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a roller structure for a Mecanum wheel, which has the advantages of easy disassembly and assembly, convenient maintenance and reduced costs. It solves the problem in the comparative documents that the gap between the rollers is closed by a layer-by-layer wrapping and a snap-fit ​​sealing structure, which is not conducive to disassembly and maintenance and increases the cost of use.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller structure for a Mecanum wheel, comprising two fixing parts, support plates are installed on opposite sides of the two fixing parts, and no less than five roller bodies are arranged between the two support plates, and a connecting assembly is installed on the outer surface of each roller body;

[0008] The connecting assembly includes a conical portion, a connecting groove, a hemispherical groove cushion, a ball head, a connecting rod, a limit plate, a sealing sliding ring and an internal threaded ring. Conical portions are installed on the left and right sides of the roller body, connecting grooves are provided on the opposite sides of the two conical portions, hemispherical groove cushions are installed on the inner walls of the two connecting grooves, ball heads are provided inside the two connecting grooves, connecting rods are installed on the opposite sides of the two ball heads, the outer surfaces of the two connecting rods are connected to limit plates, sealing sliding rings are installed inside the limit plates, and internal threaded rings are installed on the opposite sides of the two limit plates.

[0009] Furthermore, the opposite sides of the two ball heads respectively pass through the openings of the two hemispherical groove cushions and extend to the interior of the hemispherical groove cushions, and the opposite sides of the two connecting rods are respectively connected to the opposite sides of the two limit plates.

[0010] Furthermore, the connecting rod passes through the opening of the connecting groove and extends to the outside of the conical portion, and a connecting hole is formed on the outer surface of the limiting plate.

[0011] Furthermore, the limit plate is sleeved on the outside of the connecting rod through a connecting hole, and the sealing sliding ring is located inside the connecting hole.

[0012] Furthermore, the sealing sliding ring is sleeved on the outer surface of the connecting rod and fits the outer surface of the connecting rod. One end of the connecting rod away from the tapered portion is rotatably connected to the support plate through a bearing.

[0013] Furthermore, an annular screw groove is formed on opposite sides of the two conical portions, the annular screw groove is sleeved on the outside of the connecting groove opening, and the internal thread ring is threadedly connected to the annular screw groove.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The roller structure for the Mecanum wheel can limit the position of the ball head by setting the connection groove and the hemispherical groove cushion, which is convenient for storage and disassembly, and the limit plate and the tapered part can be threadedly connected and installed through the internal thread ring. Therefore, when disassembling, it is only necessary to rotate the limit plate to release the limit on the ball head, thereby facilitating separation, reducing the time required for disassembly and assembly, reducing the cost required for assembly, and facilitating the use of users.

[0017] 2. The roller structure for the Mecanum wheel utilizes a sealing sliding ring to be sleeved on the outer surface of the connecting rod for sliding connection, and utilizes a close sliding fit design to tightly seal the limit plate and the connecting rod, thereby preventing the entry of impurities, thereby extending the service life of the device, reducing the structure required for sealing, reducing the cost required for composition, and facilitating use by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 It is a partial front view cross-sectional schematic diagram of the roller of the utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0021] In the figure: 1, fixing part; 2, supporting plate; 3, roller body; 4, connecting assembly; 401, conical part; 402, connecting groove; 403, hemispherical groove cushion; 404, ball head; 405, connecting rod; 406, limiting plate; 407, sealing sliding ring; 408, internal thread ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 A roller structure for a Mecanum wheel in this embodiment includes two fixing parts 1, support plates 2 are installed on opposite sides of the two fixing parts 1, and no less than five roller bodies 3 are arranged between the two support plates 2, and a connecting component 4 is installed on the outer surface of each roller body 3.

[0024] exist Figure 1-3 In the figure, the connecting assembly 4 is composed of eight components, namely, a tapered portion 401, a connecting groove 402, a hemispherical groove cushion 403, a ball head 404, a connecting rod 405, a limit plate 406, a sealing sliding ring 407 and an internal threaded ring 408, so as to achieve the advantages of easy disassembly and assembly, convenient maintenance and reduced cost.

[0025] exist Figure 2 and Figure 3 In the figure, conical parts 401 are installed on the left and right sides of the roller body 3, and connecting grooves 402 are opened on the opposite sides of the two conical parts 401. Hemispherical groove cushions 403 are installed on the inner walls of the two connecting grooves 402. The connecting grooves 402 are used in conjunction with the hemispherical groove cushions 403 to limit the ball head 404, so that the roller body 3 is connected to the support plate 2.

[0026] exist Figure 2 and Figure 3 In the figure, ball heads 404 are arranged inside the two connecting grooves 402, and connecting rods 405 are installed on the opposite sides of the two ball heads 404 to form a ball head rod type structure. The ball heads 404 are used to connect the tapered part 401, and the rod body is used to connect the support plate 2.

[0027] exist Figure 2 and Figure 3In the figure, the outer surfaces of the two connecting rods 405 are connected to the limit plates 406, and the interior of the limit plates 406 is installed with a sealing sliding ring 407 for sliding connection with the connecting rod 405 to reduce friction resistance and improve the sealing effect. Internal threaded rings 408 are installed on the opposite sides of the two limit plates 406 to reinforce the threaded connection between the limit plates 406 and the tapered portion 401.

[0028] It should be noted that this section is intended to provide a background or context for the implementation methods stated in the claims, and detailed descriptions of known functions and known components are omitted. At the same time, fixed and movable installations are determined according to actual application methods. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment. The description here is not admitted to be prior art because it is included in this section.

[0029] When implementing, follow these steps:

[0030] 1) First, rotate the limit plate 406 to drive the sealing sliding ring 407 to slide on the connecting rod 405, and at the same time, use the rotation to drive the internal thread ring 408 to separate from the annular screw groove;

[0031] 2) Then, the limiting plate 406 is continuously moved toward the side away from the roller body 3, thereby exposing the opening of the connecting groove 402;

[0032] 3) Finally, push the roller body 3 to move toward the unseparated end, squeeze the hemispherical groove cushion 403 on the other side to shrink, so that the ball head 404 on this side withdraws from the connecting groove 402, and then do the same operation on the other side.

[0033] In summary, the roller structure for the Mecanum wheel can limit the position of the ball head 404 through the setting of the connecting groove 402 and the hemispherical groove cushion 403, which is convenient for storage and disassembly, and the limit plate 406 and the tapered portion 401 can be threadedly connected and installed through the internal thread ring 408. Therefore, when disassembling, it is only necessary to rotate the limit plate 406 to release the limit on the ball head 404, thereby facilitating separation, reducing the time required for disassembly and assembly, reducing the cost required for assembly, and facilitating use by users.

[0034] Moreover, a sealing sliding ring 407 is sleeved on the outer surface of the connecting rod 405 for sliding connection, and a close sliding fit design is utilized to tightly seal the limit plate 406 and the connecting rod 405, thereby preventing the entry of impurities, thereby extending the service life of the device, reducing the structure required for sealing, lowering the cost of the components, and making it more convenient for users. This solves the problem in the comparative documents that the gap between the rollers is sealed by a layer-by-layer wrapping and snap-fitting sealing structure, which is not conducive to disassembly and maintenance and increases the cost of use.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller structure for a Mecanum wheel, comprising two fixing parts (1), characterized in that: A support plate (2) is installed on the opposite side of the two fixing parts (1), and no less than five roller bodies (3) are arranged between the two supporting plates (2), and a connecting component (4) is installed on the outer surface of each roller body (3); The connecting assembly (4) comprises a conical portion (401), a connecting groove (402), a hemispherical groove cushion (403), a ball head (404), a connecting rod (405), a limit plate (406), a sealing sliding ring (407) and an internal thread ring (408). The left and right sides of the roller body (3) are both provided with conical portions (401), and the opposite sides of the two conical portions (401) are both provided with connecting grooves (402). The inner walls of the two connecting grooves (402) are A hemispherical groove cushion (403) is installed on each of the two connecting grooves (402), a ball head (404) is arranged inside each of the two connecting grooves (402), a connecting rod (405) is installed on the opposite side of each of the two ball heads (404), the outer surfaces of the two connecting rods (405) are connected to a limiting disk (406), a sealing sliding ring (407) is installed inside the limiting disk (406), and an internal threaded ring (408) is installed on the opposite side of each of the two limiting disks (406).

2. The roller structure for a Mecanum wheel according to claim 1, characterized in that: The opposite sides of the two ball heads (404) pass through the openings of the two hemispherical groove cushions (403) and extend to the interior of the hemispherical groove cushions (403), and the opposite sides of the two connecting rods (405) are connected to the opposite sides of the two limit plates (406).

3. The roller structure for a Mecanum wheel according to claim 1, characterized in that: The connecting rod (405) passes through the opening of the connecting groove (402) and extends to the outside of the conical portion (401), and a connecting hole is formed on the outer surface of the limiting plate (406).

4. The roller structure for a Mecanum wheel according to claim 3, characterized in that: The limiting plate (406) is sleeved on the outside of the connecting rod (405) through a connecting hole, and the sealing sliding ring (407) is located inside the connecting hole.

5. The roller structure for a Mecanum wheel according to claim 1, characterized in that: The sealing sliding ring (407) is sleeved on the outer surface of the connecting rod (405) and fits the outer surface of the connecting rod (405). One end of the connecting rod (405) away from the conical portion (401) is rotatably connected to the support plate (2) via a bearing.

6. The roller structure for a Mecanum wheel according to claim 1, characterized in that: An annular screw groove is formed on opposite sides of the two conical parts (401), and the annular screw groove is sleeved on the outside of the opening of the connecting groove (402), and the internal thread ring (408) is threadedly connected to the annular screw groove.

Images