WO2020253170A1

WO2020253170A1 - Wheel assembly and vehicle

Info

Publication number: WO2020253170A1
Application number: PCT/CN2019/125738
Authority: WO
Inventors: 史弦立; 李卫华; 李德权; 熊思凯; 任涛; 韦力强
Original assignee: 珠海格力智能装备有限公司; 珠海格力电器股份有限公司
Priority date: 2019-06-17
Filing date: 2019-12-16
Publication date: 2020-12-24
Also published as: CN110194027B; CN110194027A

Abstract

A wheel assembly and a vehicle with the wheel assembly. The wheel assembly comprises a wheel body (1), which is provided with a first support part (11): the wheel assembly comprises a support member (2); the support member (2) is connected to a vehicle body; at least a part of the support member (2) is in contact with the first support part (11), so that the pressure of the vehicle body is transferred to the wheel body (1) by means of the support member (2) and the first support part (11). The wheel assembly solves the problem in the prior art of easy stress concentration at a wheel axle.

Description

Wheel assembly and vehicle

This application claims the priority of the patent application filed to the State Intellectual Property Office of China on June 17, 2019 with the application number 201910523600.9 and the invention title "Wheel Assembly and Vehicle".

Technical field

This application relates to the field of vehicles, and specifically to a wheel assembly and a vehicle.

Background technique

The wheel bodies of existing vehicles are mostly mounted on the vehicle body through the wheel axles, and stress concentration is likely to occur at the wheel axles. When the vehicle has a heavy load, the wheel axles are easily damaged.

Secondly, when the vehicle is loaded, the wheel shaft is prone to slight bending under the load, which affects the matching accuracy of the transmission gear structure.

Thirdly, in some vehicles, the shaft of the driving device is directly connected to the wheel shaft, causing the weight of the vehicle to act on the shaft of the driving device, which may easily cause damage to the driving device.

Summary of the invention

The main purpose of the present application is to provide a wheel assembly and a vehicle to solve the problem that the wheel assembly in the prior art is prone to stress concentration at the wheel shaft.

In order to achieve the above objective, according to one aspect of the present application, a wheel assembly is provided. The wheel assembly includes a wheel body on which a first support portion is provided. The wheel assembly further includes a support member connected to the vehicle body. At least a part of the support is in contact with the first support to transmit the pressure of the vehicle body to the wheel body through the support and the first support.

Further, the supporting member includes a bearing, and the bearing is matched with the first supporting part, so that the wheel body is rotatably matched with the main body part of the supporting member through the bearing.

Further, the wheel body is provided with a rotating shaft mounting part, and at least a part of the first supporting part is arranged around the rotating shaft mounting part.

Further, the support includes a support plate and a second support part, the second support part is arranged on the support plate, at least part of the second support part is arranged around the first support part, and at least part of the second support part presses the first support Ministry.

Further, the supporting member further includes a bearing, and the bearing is installed between the first supporting part and the second supporting part.

Further, the first support portion is provided with a first installation groove, the second support portion is provided with a second installation groove, the inner ring of the bearing is clamped in the first installation groove, and the outer ring of the bearing is clamped in the second installation In the slot.

Further, the support plate has a recessed portion, and at least a part of the second support portion is disposed in the recessed portion.

Further, the wheel assembly includes a driving device, and the output shaft of the driving device is connected with the wheel body to drive the wheel body to rotate; the wheel assembly also includes a coupling member, and the output shaft is connected with the wheel body through the coupling member; The output shaft can be movably connected, and/or the coupling part and the wheel body can be movably connected.

Further, the coupling member is fixedly connected to the wheel body, the coupling member is provided with a coupling hole, and at least part of the output shaft is inserted in the coupling hole; the coupling member is provided with a first opening, and a first opening It is connected to the coupling hole, and the output shaft is provided with a second opening to connect the coupling member with the output shaft through a connecting piece penetrated in the first opening and the second opening; wherein the section of the coupling hole The size is larger than the cross-sectional size of the output shaft.

Further, at least part of the connecting piece is strip-shaped, and along the length direction of the connecting piece, the cross-sectional size of the part of the connecting piece located in the first opening is smaller than the cross-sectional size of the first opening; and/or, along the length of the connecting piece Direction, the cross-sectional size of the part of the connecting member located in the second opening is smaller than the cross-sectional size of the second opening.

According to another aspect of the present application, a vehicle is provided. The vehicle includes a vehicle body and a wheel assembly mounted on the vehicle body. The wheel assembly is the aforementioned wheel assembly.

The wheel assembly to which the technical solution of the present application is applied includes a wheel body on which a first support portion is provided. The wheel assembly further includes a support member connected to the vehicle body, and at least part of the support member is in contact with the first support portion, The pressure of the vehicle body is transmitted to the wheel body through the support member and the first support part. By providing the first support part on the wheel body and the support part, the weight of the vehicle is transmitted to the first support part through the support part, avoiding the weight of the vehicle from acting on the wheel axle, and solving the problem of the wheel assembly in the prior art The problem of stress concentration easily occurs at the wheel shaft.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 shows a schematic structural diagram of an embodiment of a wheel assembly according to the present application from a first perspective;

Fig. 2 shows a schematic structural diagram of an embodiment of a wheel assembly according to the present application from a second perspective;

Figure 3 shows a schematic cross-sectional structure diagram of an embodiment of a wheel assembly according to the present application;

Fig. 4 shows a schematic structural diagram of a wheel body of an embodiment of a wheel assembly according to the present application;

Fig. 5 shows a schematic structural diagram of a support of an embodiment of a wheel assembly according to the present application.

The above drawings include the following reference signs:

1. Wheel body; 11. First support part; 12. Rotary shaft mounting part; 2. Support member; 21. Support plate; 211. Recess; 22. Second support part; 23. Bearing; 3. Drive device; 31 , Drive motor; 32, reducer; 33, output shaft; 4. shaft parts.

Detailed ways

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

1 to 5, the present application provides a wheel assembly, the wheel assembly includes a wheel body 1, the wheel body 1 is provided with a first support portion 11, the wheel assembly further includes: a support member 2, the support member 2 and the car At least part of the support member 2 is in contact with the first support portion 11 to transmit the pressure of the vehicle body to the wheel body 1 through the support member 2 and the first support portion 11. By arranging the first support part 11 on the wheel body 1 and the support part 2, the weight of the vehicle can be transmitted to the first support part 11 through the support part 2 to avoid the weight of the vehicle acting on the wheel axle, which solves the existing problem. The technical wheel assembly is prone to stress concentration problems at the wheel axle.

Specifically, the supporting member 2 includes a bearing 23 which is matched with the first supporting portion 11 so that the wheel body 1 is rotatably matched with the main body of the supporting member 2 through the bearing 23. In this way, the friction between the support 2 and the first support portion 11 can be effectively reduced, the smooth rotation of the wheel body 1 is ensured, and the wear of the wheel body 1 is reduced.

As shown in FIG. 3, the wheel body 1 is provided with a rotating shaft mounting portion 12, and at least part of the first supporting portion 11 is disposed around the rotating shaft mounting portion 12. By arranging at least part of the first supporting portion 11 around the shaft mounting portion 12, the first supporting portion 11 can effectively bear the load of the vehicle body, and avoid the weight of the vehicle body from acting on the wheel shaft.

Specifically, the supporting member 2 includes a supporting plate 21 and a second supporting portion 22. The second supporting portion 22 is disposed on the supporting plate 21. At least part of the second supporting portion 22 is disposed around the first supporting portion 11, and the second supporting portion 22 At least a part of it is pressed onto the first support portion 11. By surrounding and pressing at least part of the second supporting portion 22 on the first supporting portion 11, the load of the vehicle body can be effectively transmitted, and the weight of the vehicle body can be prevented from acting on the wheel axle.

As shown in FIG. 3, the support 2 further includes a bearing 23 which is installed between the first support portion 11 and the second support portion 22.

Specifically, in order to achieve effective fixing of the bearing 23, a first mounting groove is provided on the first support portion 11, a second mounting groove is provided on the second support portion 22, and the inner ring of the bearing 23 is clamped in the first mounting groove. Inside, the outer ring of the bearing is clamped in the second installation groove.

Specifically, the support plate 21 has a recess 211, and at least part of the second support 22 is disposed in the recess 211. In this way, after the first supporting portion 11 and the second supporting portion 22 on the wheel body 1 are matched, the wheel body 1 can be effectively hidden in the recess 211, avoiding the problem of inflexible vehicle operation caused by the protruding position of the wheel body 1.

In this embodiment, the recessed portion 211 is recessed toward the side away from the wheel body 1.

Specifically, as shown in FIGS. 1 to 3, the wheel assembly includes a driving device 3. The output shaft 33 of the driving device 3 is connected to the wheel body 1 to drive the wheel body 1 to rotate; the wheel assembly also includes a coupling member 4, an output shaft 33 is connected to the wheel body 1 through the coupling member 4; wherein the coupling member 4 and the output shaft 33 are movably connected, and/or the coupling member 4 and the wheel body 1 are movably connected. By movably connecting the coupling member 4 and the output shaft 33, and/or movably connecting the coupling member 4 and the wheel body 1, relative movement between the output shaft 33 and the coupling member 4 can occur, and both The torque can also be effectively transmitted between the two. This structural design can cause relative movement between the output shaft 33 and the coupling part 4 when the wheel body 1 bears a load, thereby avoiding stress concentration on the output shaft 33, which is beneficial to lengthening The service life of the drive device 3.

In one embodiment, the coupling member 4 and the output shaft 33 are connected by a universal joint.

In another embodiment, the coupling member 4 is fixedly connected to the wheel body 1, the coupling member 4 is provided with a coupling hole, and at least part of the output shaft 33 is inserted into the coupling hole; the coupling member 4 is provided There is a first opening, the first opening is communicated with the coupling hole, and the output shaft 33 is provided with a second opening, so that the coupling member 4 can be connected through the connecting piece through the first opening and the second opening. Connected with the output shaft 33; wherein the cross-sectional size of the coupling hole is larger than the cross-sectional size of the output shaft 33. In this way, there is a clearance fit between the output shaft 33 and the first opening on the coupling member 4, and relative movement can occur between the output shaft 33 and the coupling member 4, and at the same time, torque can be effectively transmitted between the two. When the wheel body 1 bears a load, relative movement occurs between the output shaft 33 and the coupling member 4, thereby avoiding stress concentration on the output shaft 33, which is beneficial to prolong the service life of the driving device 3.

In this embodiment, the driving device 3 includes a driving motor 31 and a reducer 32, the driving motor 31 is drivingly connected to the reducer 32, and the output end of the reducer 32 is the output shaft 33.

Specifically, at least part of the connecting piece is strip-shaped, and along the length direction of the connecting piece, the cross-sectional size of the portion of the connecting piece located in the first opening is smaller than the cross-sectional size of the first opening; and/or, along the length of the connecting piece Direction, the cross-sectional size of the part of the connecting member located in the second opening is smaller than the cross-sectional size of the second opening.

In this embodiment, the connecting member is a plug, and the plug fits loosely with the first opening and the second opening to ensure that the output shaft 33 and the coupling member 4 can move relative to each other.

The present application also provides a vehicle. The vehicle includes a vehicle body and a wheel assembly mounted on the vehicle body. The wheel assembly is the above-mentioned wheel assembly.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

The wheel assembly of the present application includes a wheel body 1, on which a first support portion 11 is provided. The wheel assembly further includes: a support member 2, which is connected to the vehicle body, and at least part of the support member 2 is connected to the first support portion 11 contacts to transmit the pressure of the vehicle body to the wheel body 1 through the support 2 and the first support portion 11. By arranging the first support part 11 on the wheel body 1 and the support part 2, the weight of the vehicle can be transmitted to the first support part 11 through the support part 2 to avoid the weight of the vehicle acting on the wheel axle, which solves the existing problem. The technical wheel assembly is prone to stress concentration problems at the wheel axle.

For ease of description, spatially relative terms such as "above", "above", "above", "above", etc. can be used here to describe as shown in the figure. Shows the spatial positional relationship between a device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation other than the orientation of the device described in the figure. For example, if the device in the figure is inverted, then the device described as "above the other device or structure" or "above the other device or structure" will then be positioned as "below the other device or structure" or "on Under other devices or structures". Thus, the exemplary term "above" may include both orientations "above" and "below". The device can also be positioned and rotated 90 degrees in other different ways or in other orientations), and the relative description of the space used here shall be explained accordingly.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

The above descriptions are only preferred embodiments of the application, and are not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A wheel assembly, the wheel assembly includes a wheel body (1), characterized in that a first support portion (11) is provided on the wheel body (1), and the wheel assembly further includes:

Support (2), the support (2) is used to connect with the vehicle body, at least part of the support (2) is in contact with the first support (11) to pass the support (2) ) And the first support portion (11) transmit the pressure of the vehicle body to the wheel body (1).
The wheel assembly according to claim 1, wherein the support (2) includes a bearing (23), and the bearing (23) cooperates with the first support portion (11) so that the wheel The body (1) is rotatably matched with the main body part of the support (2) through the bearing (23).
The wheel assembly according to claim 1, wherein the wheel body (1) is provided with a shaft mounting portion (12), and at least part of the first support portion (11) surrounds the shaft mounting portion ( 12) Setting.
The wheel assembly according to claim 1, wherein the support (2) comprises a support plate (21) and a second support portion (22), and the second support portion (22) is provided on the support On the board (21), at least part of the second support portion (22) is arranged around the first support portion (11), and at least part of the second support portion (22) presses the first support portion (11) On.
The wheel assembly according to claim 4, wherein the support (2) further comprises a bearing (23), and the bearing (23) is mounted on the first support part (11) and the second Between the supports (22).
The wheel assembly according to claim 5, the first support portion (11) is provided with a first installation groove, the second support portion (22) is provided with a second installation groove, and the bearing (23) The inner ring of the bearing is clamped in the first installation groove, and the outer ring of the bearing is clamped in the second installation groove.
The wheel assembly according to claim 4, characterized in that the support plate (21) has a recess (211), and at least part of the second support (22) is disposed in the recess (211) .
The wheel assembly according to claim 7, wherein the wheel assembly comprises a driving device (3), and an output shaft (33) of the driving device (3) is connected to the wheel body (1) to drive The wheel body (1) rotates; the wheel assembly further includes a coupling member (4), and the output shaft (33) is connected to the wheel body (1) through the coupling member (4);

Wherein, the coupling member (4) is movably connected with the output shaft (33), and/or the coupling member (4) is movably connected with the wheel body (1).
The wheel assembly according to claim 8, wherein the coupling member (4) is fixedly connected to the wheel body (1), and a coupling hole is provided on the coupling member (4), and the At least part of the output shaft (33) is inserted in the coupling hole;

The coupling member (4) is provided with a first opening, the first opening is in communication with the coupling hole, and the output shaft (33) is provided with a second opening for passing through The connecting piece in the first opening and the second opening connects the coupling member (4) with the output shaft (33);

Wherein, the cross-sectional size of the coupling hole is larger than the cross-sectional size of the output shaft (33).
The wheel assembly according to claim 9, wherein at least part of the connecting piece is strip-shaped, and along the length direction of the connecting piece, a cross-section of the connecting piece located in the first opening is Size is smaller than the cross-sectional size of the first opening; and/or, along the length direction of the connecting member, the cross-sectional size of the portion of the connecting member located in the second opening is smaller than that of the second opening Section size.
A vehicle comprising a vehicle body and a wheel assembly mounted on the vehicle body, wherein the wheel assembly is the wheel assembly according to any one of claims 1 to 10.