CN220220287U

CN220220287U - Axle housing assembly for rear axle of electric vehicle

Info

Publication number: CN220220287U
Application number: CN202321610116.8U
Authority: CN
Inventors: 孙洛洛
Original assignee: Xuzhou Jinchangdi Machinery Technology Co ltd
Current assignee: Xuzhou Jinchangdi Machinery Technology Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-12-22
Anticipated expiration: 2033-06-25

Abstract

The utility model relates to the technical field of rear axles of electric vehicles and discloses an axle housing assembly for a rear axle of an electric vehicle, which comprises a gear box main body, an axle tube main body and a connecting assembly arranged between the gear box main body and the axle tube main body, wherein the connecting assembly comprises a fastening nozzle, a fastening pin shaft, a long pin shaft and a thick pin shaft; the mounting groove has been seted up to the outer wall circumference equidistance of gear box main part, through set up the fastening mouth on the gear box, and through fastening round pin hub connection, improve the sealed tightness of gear box, through set up connecting element one in one side of gear box, set up connecting element two in one side of bridge pipe, because connecting element one, connecting element two's both sides are through long round pin axle fixed mounting, connecting element one, connecting element two's intermediate position department is through thick round pin axle fixed mounting, improve bridge pipe and gear box tightness at the junction greatly, avoid producing easily not hard up, and leak oil from this department, then probably lead to the driving medium inefficacy when not hard up aggravation.

Description

Axle housing assembly for rear axle of electric vehicle

Technical Field

The utility model relates to the technical field of rear axles of electric vehicles, in particular to an axle housing assembly for a rear axle of an electric vehicle.

Background

The electric vehicle is widely used in various fields because of no tail gas pollution and low noise. The axle housing of the rear axle of the existing three-wheel and four-wheel electric vehicle mainly comprises a gear box, a left axle tube, a right axle tube and a box bottom cover; the left bridge pipe, the right bridge pipe and the mouths of the two sides of the gear box are in press-in connection into a body in an interference mode, and when parts such as a gear, a bearing differential mechanism, a sealing cover and the like are assembled, the parts are installed from the bottom of the gear box, and then the bottom cover of the gear box is encapsulated.

However, in the rear axle housing structure, the axle housing always bears vibration and impact load in the running process of the vehicle, so that the connection part of the axle tube and the gear box is easy to loosen, oil leaks from the connection part, and the transmission part is possibly invalid when the looseness is increased.

Disclosure of Invention

The utility model aims to provide an axle housing assembly for a rear axle of an electric vehicle, which achieves the aim of convenient use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the axle housing assembly for the rear axle of the electric vehicle comprises a gear box main body, an axle pipe main body and a connecting assembly arranged between the gear box main body and the axle pipe main body, wherein the connecting assembly comprises a fastening nozzle, a fastening pin shaft, a long pin shaft and a thick pin shaft;

the outer wall circumference equidistance of gear box main part has seted up the mounting groove, fastening mouth fixed mounting is in the mounting groove, and is connected through the fastening round pin axle between the fastening mouth.

Preferably, one side of the gear box main body is fixedly provided with first connecting elements, and the number of the first connecting elements is two and is distributed in one hundred eighty degrees.

Preferably, the end part of the other end of the bridge pipe main body is fixedly provided with a second connecting element, and the second connecting element has three sections and is distributed in a ninety-degree fan shape.

Preferably, the two sides of the first connecting element and the second connecting element are fixedly arranged through long pin shafts, the middle positions of the first connecting element and the second connecting element are fixedly arranged through thick pin shafts, and the long pin shafts are positioned on the two sides of the thick pin shafts.

Preferably, an inner embedding groove is formed in the first connecting element, and an outer small-opening annular bulge, an inner large-opening annular bulge and an outer stepped bulge are formed in an integrated mode.

Preferably, a ninety-degree fan-shaped inlay is integrally formed and connected at the middle position of the inner wall of the second connecting element, an inward stepped protruding body is integrally formed and connected on the ninety-degree fan-shaped inlay, and an outer annular connecting body is integrally formed and connected on the outer wall of the inward stepped protruding body.

Preferably, an embedded piece is formed among the ninety-degree sector inlay, the inward stepped protruding body and the outer annular connecting body and is assembled with the embedded groove in an embedded mode.

The utility model provides an axle housing assembly for a rear axle of an electric vehicle. The beneficial effects are as follows:

(1) According to the utility model, the fastening mouth is arranged on the gear box and is connected through the fastening pin shaft, so that the sealing tightness of the gear box is improved, the first connecting element is arranged on one side of the gear box, the second connecting element is arranged on one side of the bridge pipe, and as the two sides of the first connecting element and the second connecting element are fixedly arranged through the long pin shaft, the middle positions of the first connecting element and the second connecting element are fixedly arranged through the thick pin shaft, the tightness of the bridge pipe and the gear box at the connecting position is greatly improved, the phenomenon that looseness is easy to occur, oil leakage from the connecting position is avoided, and the transmission part is possibly invalid when the looseness is aggravated is avoided.

(2) According to the utility model, the embedded groove is formed in the first connecting element, the embedded piece is arranged on the inner wall of the second connecting element, so that the embedded piece and the embedded groove are assembled, the tightness is greatly improved, and even if the bridge pipe and the gear box are loose at the connecting part, the secondary fastening is performed under the matching action of the assembly of the embedded piece and the embedded groove, and the tightness is greatly improved.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a view of a connection assembly of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is an enlarged view of a of fig. 3 according to the present utility model.

In the figure: 111 gear box main part, 112 bridge pipe main part, 2 coupling assembling, 211 fastening mouth, 212 fastening round pin axle, 213 coupling element one, 214 coupling element two, 215 long round pin axle, 216 thick round pin axle, 221 outside little mouthful annular bulge, 222 inside big mouthful annular bulge, 223 outside ladder type protruding body, 224 ninety degrees fan inlay, 225 inwards ladder type protruding body, 226 outer ring type connecting body.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

The preferred embodiment of the axle housing assembly for the rear axle of an electric vehicle provided by the utility model is shown in fig. 1-4: an axle housing assembly for a rear axle of an electric vehicle comprises a gear box main body 111, an axle tube main body 112 and a connecting assembly 2 arranged between the gear box main body 111 and the axle tube main body 112, wherein the connecting assembly 2 comprises a fastening nozzle 211, a fastening pin 212, a long pin 215 and a thick pin 216;

the circumference of the outer wall of the gear box main body 111 is provided with mounting grooves at equal intervals, the fastening nozzles 211 are fixedly arranged in the mounting grooves, the fastening nozzles 211 are connected through fastening pins 212, one side of the gear box main body 111 is fixedly provided with first connecting elements 213, the number of the first connecting elements 213 is two, and the first connecting elements 213 are distributed in a hundred eighty degrees; the other end of the bridge pipe main body 112 is fixedly provided with a second connecting element 214, and the second connecting element 214 has three sections and is distributed in a ninety-degree fan shape; the two sides of the first connecting element 213 and the second connecting element 214 are fixedly arranged through long pin shafts 215, the middle positions of the first connecting element 213 and the second connecting element 214 are fixedly arranged through thick pin shafts 216, and the long pin shafts 215 are positioned on the two sides of the thick pin shafts 216.

Through setting up fastening mouth 211 on the gear box to connect through fastening round pin axle 212, improve the sealed tightness of gear box, through setting up connecting element one 213 in one side of gear box, set up connecting element two 214 in one side of axle pipe, because connecting element one 213, connecting element two 214's both sides are through long round pin axle 215 fixed mounting, connecting element one 213, connecting element two 214's intermediate position department is through thick round pin axle 216 fixed mounting, improve the tightness of axle pipe and gear box in the junction greatly, avoid producing easily not hard up, and leak oil from this place, it is likely to lead to the driving medium inefficacy when not hard up aggravates.

Example 2

On the basis of embodiment 1, a preferred embodiment of an axle housing assembly for a rear axle of an electric vehicle according to the present utility model is shown in fig. 1 to 4: an inner embedding groove is formed in the first connecting element 213, and an outer small-opening annular bulge 221, an inner large-opening annular bulge 222 and an outer stepped bulge 223 are integrally formed; a ninety-degree sector inlay 224 is integrally connected to the middle position of the inner wall of the second connecting element 214, an inward stepped boss 225 is integrally connected to the ninety-degree sector inlay 224, and an outer annular connector 226 is integrally connected to the outer wall of the inward stepped boss 225; ninety degree fan inlay 224, inward stepped boss 225, and outer annular connector 226 form an insert therebetween that fits in-line with the embedded groove.

Through the embedded groove is set up in the inside of connecting element one 213, set up the embedded piece at connecting element two 214's inner wall, make its embedded piece assemble with the embedded groove, improve the leakproofness greatly, even bridge pipe and gear box are not hard up in the junction, carry out the secondary fastening under the cooperation effect of embedded piece and embedded groove assembly, improve the fastenability greatly.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Axle housing subassembly for electric motor car rear axle, including gear box main part (111), axle pipe main part (112), and set up coupling assembling (2) between gear box main part (111), axle pipe main part (112), its characterized in that: the connecting component (2) comprises a fastening nozzle (211), a fastening pin shaft (212), a long pin shaft (215) and a thick pin shaft (216);

the outer wall circumference equidistance of gear box main part (111) has seted up the mounting groove, fastening mouth (211) fixed mounting is in the mounting groove, and is connected through fastening round pin axle (212) between fastening mouth (211).

2. An axle housing assembly for a rear axle of an electric vehicle as set forth in claim 1 wherein: one side of the gear box main body (111) is fixedly provided with first connecting elements (213), and the number of the first connecting elements (213) is two and is distributed in one hundred eighty degrees.

3. An axle housing assembly for a rear axle of an electric vehicle as set forth in claim 1 wherein: the other end part of the bridge pipe main body (112) is fixedly provided with a second connecting element (214), and the second connecting element (214) has three sections and is distributed in a ninety-degree fan shape.

4. An axle housing assembly for a rear axle of an electric vehicle as set forth in claim 2 wherein: the two sides of the first connecting element (213) and the second connecting element (214) are fixedly installed through long pin shafts (215), the middle positions of the first connecting element (213) and the second connecting element (214) are fixedly installed through thick pin shafts (216), and the long pin shafts (215) are positioned on the two sides of the thick pin shafts (216).

5. An axle housing assembly for a rear axle of an electric vehicle as set forth in claim 2 wherein: an inner embedding groove is formed in the first connecting element (213), and an outer small-opening annular bulge (221), an inner large-opening annular bulge (222) and an outer stepped bulge body (223) are formed in an integrated mode.

6. A axle housing assembly for a rear axle of an electric vehicle as defined in claim 3, wherein: the inner wall intermediate position department integrated into one piece of connecting element two (214) is connected with ninety degrees fan-shaped inlay (224), integrated into one piece is connected with inwards stepped boss (225) on ninety degrees fan-shaped inlay (224), the outer wall integrated into one piece of inwards stepped boss (225) is connected with outer annular connector (226).

7. An axle housing assembly for a rear axle of an electric vehicle as defined in claim 6, wherein: an embedded piece is formed among the ninety-degree fan-shaped inlay (224), the inward stepped protruding body (225) and the outer annular connecting body (226), and is assembled with the embedded groove in an embedded mode.