CN217207570U

CN217207570U - Lightweight hub reduction gear assembly

Info

Publication number: CN217207570U
Application number: CN202220255152.6U
Authority: CN
Inventors: 张�林; 孔卓; 秦厚明; 陈立娜
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-08-16
Anticipated expiration: 2032-02-08

Abstract

The utility model provides a lightweight wheel reduction assembly to the not enough defect of lightweight design among the prior art, provides a lightweight wheel reduction assembly, both satisfied lightweight demand, satisfy performance and complete machine strength requirement again, the utility model provides a lightweight wheel reduction assembly mainly includes wheel reduction shell, planet carrier, semi-axis, its characterized in that, the outer terminal surface of wheel reduction shell is connected with the gasket, is provided with a plurality of mounting holes on the gasket, and the gasket passes through the bolt can dismantle to be connected in the outer terminal surface of wheel reduction shell, wheel reduction shell outer end inboard is provided with the hole, be provided with the bush in the hole, planet wheel hub connection is in the bush, not only greatly reduces wheel reduction assembly weight but also satisfies biography and turns round the performance, and the lightweight effect is showing, has very extensive application prospect.

Description

Lightweight hub reduction gear assembly

Technical Field

The utility model relates to a reduction gear technical field, in particular to lightweight hub reduction gear assembly.

Background

The automobile reserve is rapidly increased, a series of problems of energy, environment and the like brought along with the rapid increase of the automobile reserve become the focus of social attention, and energy conservation and emission reduction become the development trend of the commercial vehicle industry. The light weight of the drive axle is the development direction of the drive axle at the present stage, the contribution to the light weight of the whole vehicle is significant, and the market benefit and the social benefit are remarkable. The light weight of the drive axle can effectively improve the transmission efficiency, reduce the oil consumption, improve the effective load capacity of the whole vehicle, improve the market acceptance, and furthest reduce the quality of each part on the premise of ensuring the comprehensive performance indexes of the commercial vehicle such as strength, safety, reliability and the like, thereby achieving the purposes of reducing the oil consumption and reducing the emission of harmful substances.

The driving axle is an important bearing part of the vehicle, and the light weight is a double-edged sword, especially for heavy trucks. How to realize the light weight of the drive axle on the basis of ensuring the reliability of the whole automobile is the subject of intensive research in various main engine plants. In recent years, the optimum design of parts and components and the light weight of a drive axle are achieved by relying on the research and development of high-performance and high-strength materials and combining the structure, application conditions, working conditions and the like of the parts and components. The hub reduction gear assembly is an important component of a double-stage reduction drive axle and has a large proportion in the total weight of the drive axle. In view of the fact that a hub reduction gear assembly is a mature technical structure, how to achieve a lightweight design thereof is a subject to be studied in detail.

Disclosure of Invention

To the not enough defect of lightweight design among the prior art, provide a lightweight wheel reduction assembly, both satisfied lightweight demand, satisfy performance and complete machine strength requirement again, the utility model provides a lightweight wheel reduction assembly, the technical scheme of adoption as follows:

the utility model provides a lightweight hub reduction gear assembly, mainly includes hub reduction gear shell, planet carrier, semi-axis, its characterized in that, the outer terminal surface of hub reduction gear shell is connected with the gasket, is provided with a plurality of mounting holes on the gasket, and the gasket passes through the bolt can be dismantled and connect in the outer terminal surface of hub reduction gear shell, hub reduction gear shell outer end inboard is provided with the hole, be provided with the bush in the hole, planet wheel hub connection is in the bush.

Preferably, the gasket is of an integral annular plate-shaped structure.

Preferably, the bushing outer end face is flush with the bore outer end face.

Preferably, the half shaft and the planet wheel shaft are both of an internal hollow structure.

Preferably, the hub reduction gear shell is made of high-strength aluminum alloy materials.

The beneficial effects of the utility model reside in that: the hub reduction gear shell is made of high-strength aluminum alloy materials, so that the weight of the hub reduction shell is greatly reduced, and the strength of a matrix is kept; the half shaft and the planet wheel shaft adopt a hollow structure, and the shaft diameter of the half shaft is optimally designed, so that the torque transmission strength is met and the aim of light weight is fulfilled; simultaneously, through the mode that inserts the bush in increasing gasket and wheel reduction gear shell hole between bolt and wheel reduction gear shell, tighten and pass when turning round the bolt and subtract the shell to the aluminum alloy wheel and play the effect of effective protection, the utility model provides a technical scheme simple structure, the principle is reliable, and is easy and simple to handle, not only greatly reduces wheel reduction gear assembly weight but also satisfies to pass and turns round the performance, and the lightweight effect is showing, has very extensive application prospect.

Drawings

Figure 1 is the structure schematic diagram of the utility model

FIG. 2 is a schematic view of the internal structure of FIG. 1

The gear reducer comprises a gear reducer shell 1, a planet carrier 2, a first abutting surface 3, a gasket 4, a bolt 5, a half shaft 6, a first spline 7, a second spline 8, a steel wire retainer ring 9, a sun gear 10, a bush 11, a planet gear shaft 12, an inner hole abutting surface 13 and an inner hole 14.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The hub reduction gear assembly shown in fig. 1-2 comprises a hub reduction gear shell 1, a planet carrier 2, a gasket 4 and a half shaft 6, wherein the gasket 4 is of an integrated annular plate-shaped structure, a plurality of mounting holes are uniformly formed in the gasket 4 in the circumferential direction, the planet carrier 2 is attached to the hub reduction gear shell 1 at a first attachment surface 3, bolts 5 sequentially penetrate through the mounting holes in the gasket 4 and through holes in the hub reduction gear shell 1 to be connected with threaded holes in the planet carrier 2, so that the gasket 4 is tightly pressed on the outer end surface of the hub reduction gear shell 1, when the bolts 5 are tightened, the hub reduction gear shell 1 is protected by the aluminum alloy, an inner hole 14 is formed in the hub reduction gear shell 1, a bushing 11 is coaxially connected in the inner hole 14, and the planet wheel shaft 12 is inserted into the bushing 11.

Planet wheel axle 12 and semi-axis 6 are the cavity formula structure, and semi-axis 6 outer end links to each other with sun gear 10 through first spline 7 to first spline 7 still fixedly connected with steel wire retaining ring 9, sun gear 10 is fixed with semi-axis 6 through steel wire retaining ring 9, and semi-axis 6 inner lateral surface is provided with second spline 8.

Hub reduction gear shell 1 adopts high strength aluminum alloy material, semi-axis 6 adopts hollow structure, reduce overall structure weight and satisfy biography and turn round intensity and structural strength again simultaneously, hub reduction gear shell 1 outer terminal surface sets up gasket 4, it links to each other with planet wheel axle 12 to set up bush 11 in the hole 14, play the guard action to hub reduction gear shell 1 when screwing up bolt 5 and biography are turned round, moreover, the steam generator is simple in structure, the principle is reliable, easy and simple to handle, both greatly reduce hub reduction gear assembly weight and satisfy the biography and turn round performance again, the lightweight effect is showing.

The above description is only a preferred embodiment of the present invention, and it should be noted that: to those skilled in the art, without departing from the principles of the present invention, several modifications may be made, and such modifications should also be considered as the scope of the present invention.

Claims

1. The utility model provides a lightweight hub reduction gear assembly, mainly includes hub reduction gear shell, planet carrier, semi-axis, its characterized in that, the outer terminal surface of hub reduction gear shell is connected with the gasket, is provided with a plurality of mounting holes on the gasket, and the gasket passes through the bolt can be dismantled and connect in the outer terminal surface of hub reduction gear shell, hub reduction gear shell outer end inboard is provided with the hole, be provided with the bush in the hole, planet wheel hub connection is in the bush.

2. The lightweight wheel hub reduction gear assembly of claim 1, wherein the shim is a one-piece annular plate-like structure.

3. The lightweight wheel hub reduction assembly of claim 1, wherein the bushing outer end face is flush with the bore outer end face.

4. The lightweight wheel reduction assembly of claim 1, wherein the axle half and planet axle are both internal hollow structures.

5. The lightweight wheel reduction gear assembly according to claim 1, wherein the wheel reduction gear case is made of a high-strength aluminum alloy material.