CN210920014U

CN210920014U - Vehicle and axle thereof

Info

Publication number: CN210920014U
Application number: CN201921477724.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Beijing Zhixing Muyuan Technology Co ltd
Current assignee: Nine Intelligent Changzhou Tech Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-07-03
Anticipated expiration: 2029-09-05
Also published as: WO2021043233A1

Abstract

The utility model discloses a vehicle and axle thereof, the axle of vehicle includes: a housing having a chamber formed therein; a driven tooth disposed within the chamber; a differential including a differential case, the driven teeth being disposed in the differential case; a first deep groove ball bearing disposed within the chamber and between the inner peripheral wall of the outer case and the differential housing; a second deep groove ball bearing disposed within the chamber and between the inner peripheral wall of the housing and the driven teeth; an end needle bearing disposed within the cavity and between the inner peripheral wall of the housing and the driven teeth. Therefore, the deep groove ball bearing and the end surface needle roller bearing are arranged to replace the traditional tapered roller bearing, so that the step of adjusting the clearance of the tapered roller bearing can be omitted, the assembly difficulty can be reduced, and the cost is saved.

Description

Vehicle and axle thereof

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a vehicle and axle thereof is related to.

Background

With the continuous development of society, the living standard of people is greatly improved, automobiles become an indispensable part in the life of people, and the improvement of the automobile axle as an important component of the automobile becomes more important.

The axle of the automobile is mainly used for connecting the suspension and the frame of the automobile, bearing the load of the automobile and maintaining the normal running of the automobile on a road.

In the related art, the axial two ends of a driven bevel gear of an axle are generally fixed by tapered roller bearings and are used for offsetting axial thrust brought by the transmission of the driven bevel gear, but the tapered roller bearings need to adjust clearance during assembly, the assembly process is complex, and the installation difficulty and the assembly cost are increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses an aim at provides an axle of vehicle, this axle has reduced the assembly degree of difficulty effectively to the cost has been practiced thrift.

The utility model provides a vehicle.

According to the utility model discloses an axle of vehicle, include: a housing having a chamber formed therein; a driven tooth disposed within the chamber; a differential including a differential case, the driven teeth being disposed in the differential case; a first deep groove ball bearing disposed within the chamber and between the inner peripheral wall of the outer case and the differential housing; a second deep groove ball bearing disposed within the chamber and between the inner peripheral wall of the housing and the driven teeth; an end needle bearing disposed within the cavity and between the inner peripheral wall of the housing and the driven teeth.

From this, according to the utility model discloses an axle of vehicle can omit traditional tapered roller bearing through setting up the deep groove ball bearing that is used for bearing radial load and the terminal surface bearing that is used for bearing axial load respectively to can save the step of adjustment tapered roller bearing play, and then can reduce the assembly degree of difficulty, practice thrift the cost.

In some examples of the invention, the number of the deep groove ball bearings is two, the inner peripheral wall of the housing is provided with a first step portion, and the second deep groove ball bearing is arranged between the first step portion and the driven teeth.

In some examples of the invention the inner peripheral wall of the housing is provided with a second step, the first deep groove ball bearing being provided in the second step and between the differential housing.

In some examples of the present invention, the driven tooth is fixedly coupled to the differential case by a plurality of circumferentially distributed fasteners.

In some examples of the invention, the driven tooth comprises: a tooth portion, the needle roller bearing being provided between a back surface of the tooth portion of the driven tooth and an inner peripheral wall of the housing

In some examples of the invention, the inner peripheral wall of the housing is provided with a third step portion, and the end needle bearing is provided between the third step portion and a tooth portion back surface of the driven tooth.

In some examples of the invention, the end needle bearing is located radially outward of the second deep groove ball bearing and axially spaced apart from the second deep groove ball bearing.

In some examples of the invention, the first deep groove ball bearing and between the inner peripheral wall of the housing, and the second deep groove ball bearing and between the inner peripheral wall of the housing, an axial play gap is provided.

In some examples of the invention, the housing includes a housing and an end cap, the end cap is disposed on one axial side of the housing, and the end cap is provided with the vehicle speed sensor.

According to the utility model discloses a vehicle, include the axle of vehicle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a cross-sectional view of an axle structure of a vehicle according to an embodiment of the present invention.

Reference numerals:

an axle 100;

a housing 10;

the driven teeth 21; a tooth portion 211; a differential case 22; a fastener 23;

a first deep groove ball bearing 30; a second deep groove ball bearing 31; an end needle bearing 40; an end cap 50; a housing 60; a first stepped portion 70; a second stepped portion 71; a third step portion 72.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

Referring to fig. 1, an axle 100 of a vehicle according to an embodiment of the present invention is described below, where the axle 100 is used to solve the problem that the assembly process of the fixing structure of the driven gear of the existing axle is complicated, which makes the installation of the axle difficult.

As shown in fig. 1, the present invention provides an axle 100 of a vehicle, the axle 100 includes a housing 60, a differential, a first deep groove ball bearing 30, a second deep groove ball bearing 31 and an end needle bearing 40. The housing 60 forms a chamber therein, and the housing 60 can effectively protect the inner parts of the chamber, thereby supporting the inner parts of the chamber and being more robust.

Specifically, as shown in fig. 1, the differential includes a differential case 22, and the driven teeth 21 are disposed on the differential case 22, so that the driven teeth 21 are prevented from being worn by external force, thereby ensuring the stability of the differential.

As shown in fig. 1, the first deep groove ball bearing 30 is disposed in the chamber, the first deep groove ball bearing 30 is disposed between the inner peripheral wall of the outer case 60 and the differential case 22, the second deep groove ball bearing 31 is disposed in the chamber, the second deep groove ball bearing 31 is disposed between the inner peripheral wall of the outer case 60 and the driven teeth 21, the first deep groove ball bearing 30 and the second deep groove ball bearing 31 are respectively supported at both axial ends of the inner peripheral wall of the outer case 60, and the first deep groove ball bearing 30 and the second deep groove ball bearing 31 are used for bearing the radial load from the driven teeth 21. The deep groove ball bearing is simple in structure and convenient to install. The first deep groove ball bearing 30 and the second deep groove ball bearing 31 arranged in this way can effectively improve the bearing capacity of radial load of the axle 100 and improve the stability of the axle 100.

Since the deep groove ball bearing can only bear the radial load brought by the driven teeth 21, the end needle bearing 40 is also required to bear the axial load.

Further, as shown in fig. 1, the end needle bearing 40 is disposed in the cavity, and the end needle bearing 40 is disposed between the inner peripheral wall of the housing 60 and the driven teeth 21, so as to bear the axial load from the driven teeth 21. The end needle bearing 40 is simple in construction and easy to install.

Therefore, the first deep groove ball bearing 30, the second deep groove ball bearing 31 and the end surface needle roller bearing 40 are arranged to replace a tapered roller bearing, the step of adjusting the clearance can be omitted, the assembly difficulty of the axle 100 can be reduced, the working time of production and maintenance workers can be reduced, and the cost can be saved.

As shown in fig. 1, the inner peripheral wall of the housing 60 is provided with a first stepped portion 70, and the second deep groove ball bearing 31 is provided between the first stepped portion 70 and the driven teeth 21. The first step 70 thus provided serves to seat and fix the second deep groove ball bearing 31, thereby effectively improving the stability of the axle 100.

Further, as shown in fig. 1, the inner peripheral wall of the outer case 60 is provided with a second step 71, and the first deep groove ball bearing 30 is provided between the second step 71 and the differential case 22. The second step 71 fixes the first deep groove ball bearing 30 to the differential case 22 more firmly, further improving the stability of the axle 100.

In some examples of the present invention, as shown in fig. 1, the driven tooth 21 and the differential case 22 are fixedly connected by a plurality of fasteners 23 distributed circumferentially. For example, the fastener 23 is a bolt. The bolt is convenient to disassemble and assemble. The driven teeth 21 and the differential case 22 are rigidly connected by a plurality of circumferentially distributed bolts. This arrangement provides for uniform loading of the differential housing 22 and effectively increases the load carrying capacity of the axle 100.

As shown in fig. 1, the driven teeth 21 include a tooth portion 211, the needle roller bearing 40 is provided between the back surface of the tooth portion 211 of the driven teeth 21 and the inner peripheral wall of the housing 60, and the driven teeth 21 are, for example, driven bevel gears. The driven bevel gear has high transmission efficiency and compact structure. The end needle bearing 40 is arranged between the back of the tooth part 211 of the driven bevel gear and the inner peripheral wall of the housing 60, so that the stability of the axle 100 can be improved, the assembly and disassembly are convenient, and the axial supporting effect of the end needle bearing 40 can be better.

Specifically, as shown in fig. 1, the inner peripheral wall of the housing 60 is provided with a third step portion 72 corresponding to the end surface needle bearing 40. The third step 72 thus provided allows the needle roller end bearing 40 to be more firmly fixed between the housing 60 and the driven tooth 21.

In some examples of the utility model, as shown in fig. 1, end needle bearing 40 is located the radial outside of second deep groove ball bearing 31 and axially spaced apart from second deep groove ball bearing 31, and the setting can guarantee that end needle bearing 40 and second deep groove ball bearing 31 do not interfere with each other at the during operation like this to can reduce the assembly degree of difficulty, improve the stability of axle 100.

As shown in fig. 1, axial play gaps are provided between the first deep groove ball bearing 30 and the inner circumferential wall of the outer housing 60, and between the second deep groove ball bearing 31 and the inner circumferential wall of the outer housing 60. By assembling the outer housing 60 and the driven gear 21 with proper sizes, and arranging axial float gaps between the first deep groove ball bearing 30 and the outer housing 60 and between the second deep groove ball bearing 31 and the inner peripheral wall of the outer housing 60, the axial force bearing surface can be controlled at the position of the end surface needle roller bearing 40, the arrangement can prevent the first deep groove ball bearing 30 and the second deep groove ball bearing 31 from bearing axial load to damage the axial load, and the axle 100 arranged in the way is stable and reliable.

In some examples of the present invention, the housing 60 includes a casing 10 and an end cover 50, the end cover 50 is disposed on one axial side of the casing 10, and a vehicle speed sensor is disposed on the end cover 50. A vehicle speed sensor mounted on the end cap 50 is used to measure the travel speed of the vehicle. The speed sensor can correspond to a rotating speed gear, a half shaft is arranged in the shell 60, the rotating speed gear is sleeved and fixed on the half shaft, and the speed sensor can be used for detecting the number of rotating teeth of the rotating speed gear, so that the rotating speed of the wheel can be known, and the rotating speed information is transmitted to the controller. Therefore, the rotation speed of the half shaft and the wheel can be accurately obtained by arranging the vehicle speed sensor on the end cover 50, the end cover 50 can protect the vehicle speed sensor at least to a certain extent, the interference of external sundries on the detection can be reduced, and the detection precision of the vehicle speed sensor can be further improved.

According to the utility model discloses a vehicle, including the axle 100 of the vehicle of the above-mentioned embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, 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 therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An axle for a vehicle, comprising:

a housing having a chamber formed therein;

a driven tooth disposed within the chamber;

a differential including a differential case, the driven teeth being disposed in the differential case;

a first deep groove ball bearing disposed within the chamber and between the inner peripheral wall of the outer case and the differential housing;

a second deep groove ball bearing disposed within the chamber and between the inner peripheral wall of the housing and the driven teeth;

an end needle bearing disposed within the cavity and between the inner peripheral wall of the housing and the driven teeth.

2. The vehicle axle of claim 1, wherein the inner peripheral wall of the housing is provided with a first step, and the second deep groove ball bearing is provided between the first step and the driven tooth.

3. The vehicle axle of claim 1, wherein the inner peripheral wall of the housing is provided with a second step, and the first deep groove ball bearing is disposed between the second step and the differential housing.

4. The vehicle axle of claim 1, wherein the driven tooth is fixedly coupled to the differential housing by a plurality of circumferentially distributed fasteners.

5. The vehicle axle of claim 1, wherein the driven tooth comprises: and the end surface needle roller bearing is arranged between the back surface of the tooth part of the driven tooth and the inner peripheral wall of the shell.

6. The vehicle axle of claim 5, wherein the inner peripheral wall of the housing is provided with a third step, and the end needle bearing is disposed between the third step and the back face of the driven tooth.

7. The vehicle axle of claim 1 wherein the end needle bearing is located radially outward of and axially spaced from the second deep groove ball bearing.

8. The vehicle axle of claim 1, wherein axial float gaps are provided between the first deep groove ball bearings and the inner peripheral wall of the housing, and between the second deep groove ball bearings and the inner peripheral wall of the housing.

9. The vehicle axle of claim 1, wherein the housing includes a housing and an end cap, the end cap being disposed on one axial side of the housing, the end cap having a vehicle speed sensor disposed thereon.

10. A vehicle comprising an axle for a vehicle according to any one of claims 1 to 9.