CN219903940U

CN219903940U - Electric drive axle housing

Info

Publication number: CN219903940U
Application number: CN202321350950.8U
Authority: CN
Inventors: 林志鸿; 罗志华; 季津华
Original assignee: Changshu Meiqiao Automotive Drive System Manufacturing Technology Co ltd
Current assignee: Changshu Meiqiao Automotive Drive System Manufacturing Technology Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-27
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses an electrically driven axle housing, comprising: a bridge pipe; and a driving motor housing, a connecting portion is arranged between the driving motor housing and the bridge pipe, and the connecting portion and the driving motor housing are integrally formed and sleeved on the circumferential outer side of the bridge pipe and are configured to form fixed connection with the bridge pipe. Through the mode, the rigidity of the electric drive axle housing can be enhanced, and the noise problem is reduced.

Description

Electric drive axle housing

Technical Field

The utility model relates to the field of vehicles, in particular to an electric drive axle housing.

Background

The existing electric drive axle housing is often mounted on the axle tube by means of a bracket connection. For example, chinese patent No. CN208760344U discloses a driving axle structure and a driving system for a pure electric vehicle. The utility model discloses a main speed reducer casing passes through the bolt to be installed on the transaxle casing, and driving motor one end forms fixed connection through bolt and main speed reducer casing to the technical scheme of other end through motor support and supporting seat installation on the transaxle casing.

However, the electric drive axle housing is thin in connection mode, low in rigidity and not robust in structure.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

In order to improve or solve the technical problem that an electric drive axle housing connecting structure is not stable in the prior art, the utility model provides an electric drive axle housing, which can increase the rigidity of a housing assembly and reduce the occurrence of noise.

In order to solve the technical problems, the utility model adopts a technical scheme that: an electrically driven axle housing is provided, the electrically driven axle housing comprising: a bridge pipe; and a driving motor housing, a connecting portion is arranged between the driving motor housing and the bridge pipe, and the connecting portion and the driving motor housing are integrally formed and sleeved on the circumferential outer side of the bridge pipe and are configured to form fixed connection with the bridge pipe.

Preferably, the connecting part comprises a connecting cylinder sleeved outside the bridge pipe and a connecting plate arranged between the driving motor shell and the connecting cylinder.

Preferably, a reinforcing plate is arranged on the outer side of the connecting portion, the reinforcing plate extending from the circumferential outer side of the connecting cylinder toward the driving motor housing.

Preferably, the electrically driven axle housing further comprises a reducer housing, and the reducer housing is sleeved on the circumferential outer side of the axle tube and is fixedly connected with the axle tube.

Preferably, the speed reducer housing and the driving motor housing are integrally formed.

Preferably, the electrically driven axle housing further includes an end cap that forms a releasable connection with the reduction gear housing.

Preferably, a mounting cylinder matched with the bridge pipe is formed on the end cover, and the mounting cylinder is sleeved on the circumferential outer side of the bridge pipe and fixedly connected with the bridge pipe.

The beneficial effects of the utility model are as follows:

1. the driving motor shell and the speed reducer shell are integrally formed, and the connecting part is arranged to connect the bridge pipe and the driving motor shell, so that the rigidity of the electric driving axle shell can be enhanced, and the noise problem is reduced;

2. the integrated structure of the driving motor shell and the speed reducer shell can reduce materials and production cost and improve production efficiency.

Drawings

FIG. 1 is a schematic overall construction of an electrically driven axle housing of the present utility model;

the components in the drawings are marked as follows:

1. a bridge pipe; 2. a housing; 21. a drive motor housing; 22. a speed reducer housing; 23. a connection part; 231. a connecting cylinder; 232. a connecting plate; 233. a reinforcing plate; 3. an end cap; 31. and (5) installing a barrel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples:

FIG. 1 is a schematic overall construction of an electrically driven axle housing of the present utility model. As shown in fig. 1, in one or more embodiments, the electrically driven axle housing of the present utility model includes an axle tube 1, a housing 2 mounted on the axle tube 1, and an end cap 3 forming a detachable connection with the housing 2.

Referring to fig. 1, in one or more embodiments, the bridge tube 1 is generally cylindrical and has opposite first and second ends. Based on the orientation shown in fig. 1, the first end is the left end and the second end is the right end. And connecting pieces are arranged at the first end and the second end, and the connecting pieces and the bridge pipe 1 form fixed connection through flanges.

With continued reference to fig. 1, in one or more embodiments, the housing 2 includes a drive motor housing 21, a reducer housing 22, and a connection 23. The drive motor housing 21 has a substantially cylindrical shape. The drive motor housing 21 and the bridge tube 1 have the same extension direction, both being substantially parallel. The connection portion 23 is provided between and connects the drive motor housing 21 and the bridge pipe 1. The connection portion 23 is integrally formed with the drive motor housing 21, and includes a connection tube 231 fitted around the circumferential outer side of the bridge pipe 1 and a connection plate 232 provided between the connection tube 231 and the drive motor housing 21. The connecting barrel 231 is generally funnel-shaped and has opposite major and minor ends. Based on the orientation shown in fig. 1, the large end is the left end and the small end is the right end. The shape of the connecting cylinder 231 matches the shape of the bridge tube 1. The connection plate 232 extends along the length direction of the driving motor housing 21, enhancing the connection strength between the connection cylinder 231 and the driving motor housing 21. A reinforcing plate 233 is also provided on the connection portion 23, and the reinforcing plate 233 is disposed on the circumferential outer side of the connection cylinder 231 and extends toward the drive motor housing 21. The reinforcing plates 233 are provided in two pieces side by side in the longitudinal direction of the bridge pipe 1. By providing the connection portion 23, the driving motor housing 21 can be mounted on the bridge pipe 1 more conveniently, and noise occurrence is reduced. Simultaneously, integrated into one piece's structure can reduce material and manufacturing cost, improves production efficiency.

With continued reference to fig. 1, in one or more embodiments, the reducer housing 22 is integrally formed with the drive motor housing 21, and the connection 23 extends to the reducer housing 22. The reducer housing 22 forms a fixed connection with the bridge tube 1, which may be welded, bolted or other suitable connection structure. The end cap 3 is fitted to the side of the reducer housing 22 remote from the drive motor housing 21. The end cap 3 is detachably connected with the reducer housing 22 by bolts. A mounting tube 31 is formed on the end cap 3, and the mounting tube 31 is fitted over the outer side of the bridge tube 1 and extends to a side away from the speed reducer housing 22. Based on the orientation shown in fig. 1, the mounting cylinder 31 extends toward the left. By integrally molding the speed reducer housing 22 and the drive motor housing 21, the rigidity of the whole electric drive axle housing can be enhanced, and occurrence of noise can be reduced. Simultaneously, integrated into one piece's structure can also reduce material and manufacturing cost, improves production efficiency.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. An electrically driven axle housing, comprising:

a bridge pipe (1); and

the driving motor comprises a driving motor shell (21), a connecting part (23) is arranged between the driving motor shell (21) and the bridge pipe (1), and the connecting part (23) and the driving motor shell (21) are integrally formed and sleeved on the circumferential outer side of the bridge pipe (1) and are configured to form fixed connection with the bridge pipe (1).

2. An electrically driven axle housing as defined in claim 1, wherein: the connecting part (23) comprises a connecting cylinder (231) sleeved outside the bridge pipe (1) and a connecting plate (232) arranged between the driving motor shell (21) and the connecting cylinder (231).

3. An electrically driven axle housing as defined in claim 2, wherein: a reinforcing plate (233) is arranged outside the connecting portion (23), and the reinforcing plate (233) extends from the circumferential outer side of the connecting tube (231) to the driving motor housing (21) direction.

4. An electrically driven axle housing as defined in claim 1, wherein: the electric drive axle housing further comprises a speed reducer housing (22), and the speed reducer housing (22) is sleeved on the circumferential outer side of the axle tube (1) and fixedly connected with the axle tube (1).

5. An electrically driven axle housing as defined in claim 4, wherein: the speed reducer housing (22) and the driving motor housing (21) are integrally formed.

6. An electrically driven axle housing as defined in claim 5, wherein: the electrically driven axle housing further comprises an end cap (3) forming a detachable connection with the reduction gear housing (22).

7. An electrically driven axle housing as defined in claim 6, wherein: an installation cylinder (31) matched with the bridge pipe (1) is formed on the end cover (3), and the installation cylinder (31) is sleeved on the circumferential outer side of the bridge pipe (1) and fixedly connected with the bridge pipe (1).