A rim structure, electronic round and vehicle for electronic round
阅读说明：本技术 一种用于电动轮的轮辋结构、电动轮及车辆 (A rim structure, electronic round and vehicle for electronic round ) 是由 杜宏斌 朱学斌 杨圣俊 万存才 马元修 李阳 董宜振 田勇 王倩倩 张攀 赵娜 于 2020-07-17 设计创作，主要内容包括：本公开涉及一种用于电动轮的轮辋结构、电动轮及车辆,包括内轮辋和外轮辋,内轮辋与外轮辋之间通过相间布置的轮辋螺栓和轮毂螺栓固定,所述内轮辋具有凸缘状的第一安装法兰,外轮辋处具有凹状的第二安装法兰,第一安装法兰的外圆面形成止口,第一安装法兰的凸缘端面与第二安装法兰的凹状端面相贴合,第二安装法兰中套接在第一安装法兰的止口处,以传递径向载荷；所述第一安装法兰朝向车轮外的方向凸出,第二安装法兰朝向车轮外凹陷,以增大轮辋安装端面与轮辋中心面之间的偏距。(The utility model relates to a rim structure, electronic wheel and vehicle for electronic wheel, including interior rim and outer rim, it is fixed through the rim bolt and the wheel hub bolt of alternate arrangement between interior rim and the outer rim, interior rim has the first mounting flange of flange form, outer rim department has the second mounting flange of concavity, the outer disc surface of first mounting flange forms the tang, the flange terminal surface of first mounting flange is laminated with the concave terminal surface of second mounting flange, cup joint in the tang of first mounting flange in the second mounting flange to transmit radial load; the first mounting flange protrudes towards the outer direction of the wheel, and the second mounting flange is recessed towards the outer side of the wheel, so that the offset distance between the rim mounting end face and the rim central face is increased.)
1. The utility model provides a rim structure for electronic wheel, includes interior rim and outer rim, and rim bolt and wheel hub bolt fixed through alternate arranging between interior rim and the outer rim, its characterized in that:
the inner rim is provided with a flange-shaped first mounting flange, the outer rim is provided with a concave second mounting flange, a spigot is formed on the outer circular surface of the first mounting flange, the flange end surface of the first mounting flange is attached to the concave end surface of the second mounting flange, and the second mounting flange is sleeved at the spigot of the first mounting flange to transmit radial load;
the first mounting flange protrudes towards the outer direction of the wheel, and the second mounting flange is recessed towards the outer side of the wheel, so that the offset distance between the rim mounting end face and the rim central face is increased.
2. The rim structure for an electric wheel according to claim 1, wherein two sets of bolt holes spaced apart from each other are uniformly installed on the same circumference of the inner rim and the outer rim, and the two sets of bolt holes are respectively used for installing rim bolts and hub bolts.
3. The rim structure for an electric wheel according to claim 1, wherein the first mounting flange has a connecting end surface on a side away from the outer rim, the connecting end surface being adapted to engage an end surface of a rim transition disc; the rim transition disc is characterized in that a circle of screw holes in the circumferential direction are formed in the edge of the rim transition disc, and the screw holes are used for penetrating through the hub bolts.
4. The rim structure for an electric wheel according to claim 3, wherein the rim bolts are used for connecting the inner rim and the outer rim, and the hub bolts are used for connecting the inner rim, the outer rim and the rim transition plate.
5. The rim structure for an electric wheel according to claim 3, wherein the screw hole is provided at an end surface of the rim transition plate near the first mounting flange, and the rim transition plate has a valve hole provided therein.
6. The rim structure for an electric wheel according to claim 2, wherein the bolt holes at the outer rim and the inner rim are counter bores for receiving nuts or bolts.
7. The rim structure for a motorized wheel of claim 2, wherein a flared opening is provided in the rim transition plate, the flared opening being adapted to pass a rim bolt.
8. The rim structure for an electric wheel according to claim 1, wherein the hub bolts are different in specification from the rim bolts.
9. An electric wheel comprising a rim structure for an electric wheel according to any one of claims 1 to 8, wherein the rim transition disc is fixedly connected with the secondary planet carrier by means of a bolted connection.
10. A vehicle characterized by comprising the electric wheel as recited in claim 9.
Technical Field
The utility model belongs to the technical field of electronic round, concretely relates to a rim structure and electronic round for electronic round.
Background
The electric wheel technology is also called as the in-wheel motor technology, the motor is also called as a hub motor, and the motor has the greatest characteristic that a power device, a transmission device and a braking device are integrated into a hub, so that the mechanical part of the electric vehicle is greatly simplified, and compared with other driving forms, the electric wheel technology has the advantages of short transmission chain, high transmission efficiency, flexible arrangement and the like. The obvious advantages of electric vehicles employing electric wheel technology in terms of overall vehicle layout, dynamic performance and control have led to widespread academic and industrial concerns.
The inventor considers that in a wheel hub rim structure, an electric wheel and a vehicle which are applied in the prior art, the rim structure for the electric wheel jointly bears radial load by a spigot of an inner rim and a clamping bolt, and has the defects of small spigot size, insufficient safety factor, small rim installation offset and inconvenience for reducing wheel track.
Disclosure of Invention
The object of the present disclosure is to provide a rim structure for an electric wheel that can solve at least one of the above-mentioned technical problems.
In order to achieve the above purpose, a first aspect of the present disclosure provides a rim structure for an electric wheel, including an inner rim and an outer rim, where the inner rim and the outer rim are fixed by rim bolts and hub bolts arranged at intervals, the inner rim has a first flange with a flange shape, the outer rim has a second flange with a concave shape, a spigot is formed on an outer circumferential surface of the first flange, a flange end surface of the first flange is attached to a concave end surface of the second flange, and the second flange is sleeved at the spigot of the first flange to transmit a radial load;
the first mounting flange protrudes towards the outer direction of the wheel, and the second mounting flange is recessed towards the outer side of the wheel, so that the offset distance between the rim mounting end face and the rim central face is increased.
As a further improvement of the first aspect, the first mounting flange has a connecting end surface on a side away from the outer rim, and the connecting end surface is used for matching with the end surface of the rim transition disc; the rim transition disc is characterized in that a circle of screw holes in the circumferential direction are formed in the edge of the rim transition disc, and the screw holes are used for penetrating through the hub bolts.
A second aspect of the present disclosure provides an electric wheel, including the above rim structure for an electric wheel, the rim transition disc is fixedly connected with the secondary planet carrier through a bolt connection piece.
A third aspect of the present disclosure provides a vehicle including the above-described electric wheel.
The beneficial effects of one or more of the above technical solutions are as follows:
(1) the outer circle of the inner rim and the clamping bolts are adopted to bear radial load together, the strength is higher, meanwhile, because the first mounting flange and the second mounting flange extend out towards the direction away from the wheel, the distance between the side face of the mounting hole of the rim and the central face of the rim is increased, the large offset mounting of the rim is realized, and the wheel track of a vehicle is favorably reduced.
(2) The inner rim and the outer rim are positioned and fastened under a non-bearing state by adopting a group of rim bolts to form a complete rim, so that reliable fastening is realized; and a group of wheel hub bolt connections are uniformly distributed at the opposite positions on the same circumference of the wheel rim bolt connection, so that the reliable transmission of the motor power, the mechanical braking force and the ground load of the planetary reducer during the running of the vehicle is realized, and the bolt fastening force of the inner wheel rim and the outer wheel rim is doubled compared with the bolt fastening force of the non-bearing state.
When the tire is replaced, the inner rim and the outer rim can be integrally detached only by removing the hub bolts; when the vehicle runs, the two bolts jointly act on the inner rim and the outer rim, so that the reliability of the force transmission structure and the maintenance convenience of the rim are guaranteed.
Adopt the cooperation of tang between interior rim and the outer rim, interior rim body excircle acts as the tang, and outer rim body is located interior rim body excircle, and tang contact length and area increase, and the radial load of rim transmission is compared the increase by outer rim body transmission to interior rim body on, intensity, has improved factor of safety.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is an isometric view of the overall structure in example 1 of the present disclosure;
FIG. 2 is an exploded view of the inner rim and outer rim of example 1 of the present disclosure;
fig. 3 is a cross-sectional view of the overall structure in embodiment 2 of the present disclosure.
In the figure, 1, an inner rim; 2. an outer rim; 3. a seal ring; 4. a rim bolt; 5. an air valve; 6. a rim nut; 7. a rim transition disc; 8. a rim nut; 9. a hub bolt; 10. a secondary sun gear; 11. a secondary planet wheel; 12. a secondary planet carrier; 13. and (5) stopping the opening.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In an exemplary embodiment of the present disclosure, as shown in fig. 1 to 2, a rim structure for an electric wheel includes an
The first mounting flange protrudes towards the outer direction of the wheel, and the second mounting flange is recessed towards the outer side of the wheel, so that the offset distance between the rim mounting end face and the rim central face is increased.
Two groups of bolt holes which are arranged alternately are uniformly distributed on the same circumference of the
In this embodiment, the screw holes are provided at the end face of the rim transition disk 7 near the first mounting flange, and the rim transition disk 7 is provided with valve holes therein. It will be appreciated that a valve 5 should be mounted in the valve hole.
Further, the bolt holes at the outer rim 2 and the
Specifically, the threads of the hub bolts are hub nuts 8, and the nuts of the rim bolts are rim nuts 6.
The rim transition disk 7 is provided with a flared opening, and the flared opening is used for penetrating the rim bolt 4.
Specifically, although the rim bolts pass through the rim transition plate, the rim bolts are not screwed to the flares, and therefore, the rim bolts are not fixed to the hub bolts. For the specific structural form herein, reference may be made to the patent documents mentioned in the background, and the details are not repeated herein.
It will be appreciated that in this embodiment, in order to achieve sealing, annular grooves are provided on the end faces of the first and second mounting flanges, respectively, and the sealing ring 3 is disposed in the annular grooves.
It will be appreciated that in this embodiment, if it is only necessary to separate the wheel tyre from the hub, only the hub bolts 9 need to be removed, and when it is necessary to remove the wheel tyre from the outboard side of the rim, the rim bolts 4 need to be removed, so that before removal, an effective distinction between the two bolts is required. That is, in the present embodiment, the hub bolts 9 and the rim bolts 4 have different specifications. Specifically, the size or shape of the screw head or the nut may be different from that of the other.
In other embodiments, the identification of the two bolts may be achieved by marking the rim bolts 4 and the hub bolts 9 with symbols.
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