CN215513230U

CN215513230U - Electrically driven rear axle

Info

Publication number: CN215513230U
Application number: CN202122039111.1U
Authority: CN
Inventors: 李清; 强晶; 张海斐
Original assignee: Wuxi Jinhua Auto Brake Co ltd
Current assignee: Wuxi Jinhua Auto Brake Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-14
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to an electrically-driven rear axle, which comprises a speed reducer, wherein the speed reducer comprises a shell, an input shaft, a transmission shaft and an output shaft are arranged in the shell, the transmission shaft is in transmission connection with the input shaft and the output shaft respectively, the input shaft, the transmission shaft and the output shaft are not in a straight line, the axes of the input shaft, the transmission shaft and the output shaft are connected in pairs to form a triangle, the output shaft is connected with a hub, the outer side of the output shaft is connected with a bridge shell, the bridge shell is connected with a connecting seat, and the input shaft, the transmission shaft and the output shaft of the speed reducer of the electrically-driven rear axle are not in a straight line, so that the distance between the input shaft and the output shaft can be reduced, the height of the shell of the speed reducer can be reduced, the distance between the shell of the speed reducer and a frame can be increased, the layout of the frame is more flexible, and the frame is more suitable for various types.

Description

Electrically driven rear axle

Technical Field

The present invention relates to vehicle equipment, and more particularly to an electrically driven rear axle.

Background

The electric drive rear axle comprises a speed reducer, wherein the speed reducer comprises an input shaft connected with a motor and an output shaft connected with a hub, the input shaft and the output shaft are in transmission connection with a rotating shaft, so that the power of the motor can be transmitted to the hub through the input shaft, a transmission shaft and the output shaft, the input shaft, the transmission shaft and the output shaft of the traditional speed reducer of the electric drive rear axle are positioned on a straight line (as shown in figure 1), the distance between the input shaft and the output shaft is large, and the frame installation space required by the electric drive rear axle is large.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide an apparatus that solves one or more problems of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides an electrically driven rear axle, includes the reduction gear, the reduction gear includes the shell, establish input shaft, transmission shaft and output shaft in the shell, the transmission shaft is connected with input shaft and output shaft transmission respectively, input shaft, transmission shaft and output shaft are not on a straight line, make two liang of lines in axle center of input shaft, transmission shaft and output shaft can enclose into a triangle-shaped, output shaft hub connects wheel hub, and the output shaft outside connects the axle casing, the axle casing body coupling has the connecting seat.

As a further improvement of the above technical solution:

the shell of the speed reducer is detachably connected by two half shells through bolts and nuts.

The shell of the speed reducer is made of an aluminum alloy material.

Compared with the prior art, the utility model has the following beneficial technical effects:

1) the input shaft, the transmission shaft and the output shaft are not on the same line, so that the distance between the input shaft and the output shaft can be reduced, the height of the shell of the speed reducer can be reduced, the distance between the shell of the speed reducer and the frame can be increased, the layout of the frame is more flexible, and the frame is more suitable for various frames;

2) the shell of the speed reducer is detachably connected by two half shells;

3) the shell of the speed reducer is made of an aluminum alloy material, and compared with the shell made of traditional cast iron, the mass of the shell is reduced by 50%, and the total weight of the electric drive rear axle is reduced by 10%, so that the mass of a vehicle can be reduced, and the cruising ability is improved.

Drawings

Fig. 1 shows a schematic structural view of a conventional electrically driven rear axle.

Fig. 2 shows a schematic construction of an electrically driven rear axle according to the utility model.

Fig. 3 shows a front view of the electrically driven rear axle of the utility model.

Fig. 4 shows a cross-sectional view a-a in fig. 2.

In the drawings, the reference numbers:

1. a speed reducer; 11. a housing; 12. an input shaft; 13. a drive shaft; 14. an output shaft; 2. a hub; 3. a bridge housing; 31. a connecting seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1 to 3, the electrically driven rear axle of the present embodiment includes a speed reducer 1, the speed reducer 1 includes a housing 11, an input shaft 12, a transmission shaft 13 and an output shaft 14 are disposed in the housing 11, the transmission shaft 13 is in transmission connection with the input shaft 12 and the output shaft 14, the input shaft 12, the transmission shaft 13 and the output shaft 14 are not in a straight line, so that two connection lines of the axes of the input shaft 12, the transmission shaft 13 and the output shaft 14 can enclose a triangle, the output shaft 14 is connected with a hub 2, the outer side of the output shaft 14 is connected with an axle housing 3, and the axle housing 3 is connected with a connecting seat 31.

The shell 11 of reduction gear 1 passes through bolt and nut detachable by two half shells and connects, and convenient to detach maintains, and the shell 11 of reduction gear 1 adopts aluminum alloy material to make, compares in the shell 11 that traditional cast iron made, and the quality reduces 50%, and electric drive rear axle total weight reduces 10% to can alleviate the vehicle quality, promote duration.

When the electric drive rear axle of this embodiment uses, the electric drive rear axle is fixed through the installation, links to each other driving motor and reduction gear 1's input shaft 12, and driving motor starts and to be able to pass through input shaft 12, transmission shaft 13 and output shaft 14 with power transmission to wheel hub 2, drives the wheel rotation that wheel hub 2 and wheel hub 2 are connected promptly, realizes the vehicle operation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electrically driven rear axle, characterized by: the speed reducer comprises a speed reducer body, the speed reducer body includes the shell, establish input shaft, transmission shaft and output shaft in the shell, the transmission shaft is connected with input shaft and output shaft transmission respectively, input shaft, transmission shaft and output shaft are not on a straight line, make two liang of lines in axle center of input shaft, transmission shaft and output shaft can enclose into a triangle-shaped, output shaft hub, and the output shaft outside connects the axle housing, the axle housing body coupling has the connecting seat.

2. An electrically driven rear axle according to claim 1, wherein: the shell of the speed reducer is detachably connected by two half shells through bolts and nuts.

3. An electrically driven rear axle according to claim 1 or 2, wherein: the shell of the speed reducer is made of an aluminum alloy material.