A wheel-hub motor omni-directional wheel

Abstract

The utility model discloses a kind of in-wheel motor omni-directional wheels, comprising: wheel frame is installed on driving motor, the outside of this wheel frame is provided with the mounting bracket distributed along its circumferential array;First axle is provided in each mounting bracket, first axle is equipped with first rolling body;And second axle is provided between adjacent mounting bracket, second axle is equipped with second rolling body;Wheel frame is provided with the positioning mortise of tenon-and-mortise structure along its circumferential array distribution, mounting bracket is provided with the installation portion corresponding with positioning mortise;Through the split type wheel frame assembly structure of pre-positioning function, it is both solved traditional omni-directional wheel integrated maintenance difficult, single bolt connection easy to loosen Problem, realize the consideration of assembly accuracy and dismounting convenience;Meanwhile, circumferential array distribution mounting bracket and complementary rolling body layout, effectively optimize the smoothness and flexibility of omni-directional movement, improve the structural stability and motion performance of omni-directional wheel, adapt to the batch application needs of a variety of omni-directional mobile equipment.

Description

Technical Field

[0001] This utility model belongs to the field of omnidirectional wheel technology and relates to an omnidirectional wheel for a hub motor. Background Technology

[0002] Omnidirectional wheel technology enables omnidirectional motion devices to perform forward, lateral, diagonal, and rotational movements, as well as combinations thereof. Omnidirectional wheels for robot locomotion, developed based on this technology, are also quite common.

[0003] The existing omnidirectional wheel frame and rolling element mounting bracket mostly adopt a one-piece molding or single bolt fastening structure: although the one-piece molding structure is stable, the mold cost is high and the maintenance and replacement of the rolling elements are difficult in the later stage; the single bolt fastening is prone to the mounting bracket loosening due to the radial load when the omnidirectional wheel is running, which affects the stability of the wheel body. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A hub motor omnidirectional wheel includes: a drive motor and an omnidirectional wheel body mounted on the drive motor;

[0006] The omnidirectional wheel body includes: a wheel frame mounted on a drive motor, with mounting brackets arranged in a circumferential array on the outer side of the wheel frame; a first wheel axle is provided in each mounting bracket, and a first rolling element is mounted on the first wheel axle; a second wheel axle is provided between adjacent mounting brackets, and a second rolling element is mounted on the second wheel axle; and the first rolling element and the second rolling element cooperate to form a circular wheel body structure.

[0007] The wheel frame is provided with positioning mortises of a mortise and tenon structure arranged in an array along its circumference, and the mounting frame is provided with mounting parts corresponding to the positioning mortises.

[0008] As a further embodiment of this utility model: the outer end of the mounting bracket is formed with a pair of outwardly extending mounting brackets, and a first mounting groove is formed between the two sets of mounting brackets, and the first wheel axle is installed in the first mounting groove;

[0009] Furthermore, a second mounting groove is formed between the mounting brackets of adjacent mounting frames, and the second wheel axle is installed in the second mounting groove; and the two ends of the first wheel axle and the second wheel axle are connected and engaged with the bearings of the mounting frame.

[0010] As a further embodiment of this utility model: the positioning mortise and the mounting part are connected by a dovetail tenon structure.

[0011] The beneficial effects of this utility model are as follows: This utility model solves the problems of difficult maintenance and easy loosening of traditional omnidirectional wheels with one-piece molding and single bolt connection by using a split wheel frame assembly structure with pre-positioning function, thus achieving a balance between assembly accuracy and ease of disassembly and assembly.

[0012] Meanwhile, the circumferentially arrayed mounting brackets and complementary rolling element layout ensure a seamless wheel surface. Combined with the lateral free rolling design of the rolling elements, this effectively optimizes the smoothness and flexibility of omnidirectional movement. Ultimately, it reduces production and maintenance costs while improving the structural stability and motion performance of the omnidirectional wheel, making it suitable for the mass application needs of various omnidirectional mobile devices. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the wheel frame structure of this utility model. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0016] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] Please see Figures 1-2 The present invention provides a hub motor omnidirectional wheel, comprising: a drive motor 1 and an omnidirectional wheel body 2 mounted on the drive motor 1;

[0020] The omnidirectional wheel 2 includes: a wheel frame 21 mounted on the end face of the outer rotor 11 of the drive motor 1, with mounting brackets 22 arranged in a circumferential array on the outer side of the wheel frame 21; each mounting bracket 22 is provided with a first wheel axle 224, and a first rolling element 23 is mounted on the first wheel axle 224; and a second wheel axle 225 is provided between adjacent mounting brackets 22, with a second rolling element 24 mounted on the second wheel axle 225; and the first rolling element 23 and the second rolling element 24 cooperate to form a circular wheel structure; during operation, the drive motor 1 drives the wheel frame 21 to rotate to provide the main motion, and the first rolling element 23 and the second rolling element 24 offset the lateral force and achieve movement in any direction by freely rolling perpendicular to the direction of the main motion;

[0021] The wheel frame 21 has a positioning mortise 211 with a dovetail joint structure distributed in a circumferential array on its end face. The mounting bracket 22 has a mounting part 221 corresponding to the positioning mortise 211. During assembly, the mounting part 221 is inserted into the positioning mortise 211 from the axial direction of the wheel frame 21 to form a radial limiting pre-positioning structure. The mounting bracket 22 is connected to the wheel frame 21 by fasteners (connecting screws, with pre-set connecting screw holes in the positioning mortise 211).

[0022] Furthermore, the outer end of the mounting bracket 22 is formed with a pair of outwardly extending mounting brackets 222, and a first mounting groove 223 is formed between the two sets of mounting brackets 222, and the first wheel axle 224 is installed in the first mounting groove 223;

[0023] Furthermore, a second mounting groove 226 is formed between the mounting brackets 222 of adjacent mounting frames 22, and the second wheel axle 225 is installed in the second mounting groove 226; and the two ends of the first wheel axle 224 and the second wheel axle 225 are connected and cooperated with the bearings of the mounting frame 22 to ensure that the first rolling element 23 and the second rolling element 24 can roll freely.

[0024] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hub motor omnidirectional wheel, characterized in that, include: The drive motor and the omnidirectional wheel mounted on the drive motor; The omnidirectional wheel body includes: a wheel frame mounted on a drive motor, with mounting brackets arranged in a circumferential array on the outer side of the wheel frame; a first wheel axle is provided in each mounting bracket, and a first rolling element is mounted on the first wheel axle; a second wheel axle is provided between adjacent mounting brackets, and a second rolling element is mounted on the second wheel axle; and the first rolling element and the second rolling element cooperate to form a circular wheel body structure. The wheel frame is provided with positioning mortises of a mortise and tenon structure arranged in an array along its circumference, and the mounting frame is provided with mounting parts corresponding to the positioning mortises.

2. The omnidirectional wheel for a hub motor according to claim 1, characterized in that, The outer end of the mounting bracket is formed with a pair of outwardly extending mounting brackets, and a first mounting groove is formed between the two sets of mounting brackets, in which the first wheel axle is installed. Furthermore, a second mounting groove is formed between the mounting brackets of adjacent mounting frames, and the second wheel axle is installed in the second mounting groove; and the two ends of the first wheel axle and the second wheel axle are connected and engaged with the bearings of the mounting frame.

3. The omnidirectional wheel for a hub motor according to claim 1, characterized in that, The positioning mortise and the mounting part are connected by a dovetail joint structure.

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