CN217705376U - Integral type car rear axle - Google Patents

Abstract

The utility model relates to the field of automobiles, an integral type car rear axle is disclosed, including the gearbox, gearbox both sides integrated into one piece respectively have the bridge involucrum, set up gearbox and bridge involucrum into the integral type structure, the faying surface of gearbox and bridge involucrum has been reduced, the problem of this faying surface oil seepage has been stopped takes place, owing to reduce the weight of the faying surface plate body, consequently, the weight of rear axle has been alleviateed, can satisfy electric automobile to the requirement of lightweight, a plurality of punching have been reduced simultaneously, the manufacturing procedure and the expense of tapping, the use of bolt has been saved, manufacturing cost is effectively reduced.

Description

Integral type car rear axle

Technical Field

The application relates to the technical field of automobiles, in particular to an integrated automobile rear axle.

Background

The rear axle is an important component in an automobile, the traditional rear axle is a transmission case and a bridge packing shell which are separated, and the transmission case and the bridge packing shell are connected through bolts after being processed on a joint surface and coated with sealant. The temperature of the rear axle can rise in the using process, and the sealant can be aged and lose efficacy after a long time, so that the problem of oil leakage is caused.

Therefore, how to provide an automobile rear axle with low processing cost and avoiding oil leakage is a technical problem that needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The application aims at providing an integral type car rear axle, can avoid the oil leak and the processing cost is lower.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides an integral type car rear axle, includes the gearbox, gearbox both sides integrated into one piece respectively have the axle involucrum, the axle involucrum is used for the cover to establish on the bridge pipe, the intraductal semi-axis that is equipped with of bridge.

Preferably, the gearbox and the bridge envelope are of integrally cast form construction.

Preferably, the bridge housing and the gearbox are welded as an integral structure.

Preferably, part of the case structure of the transmission case is integrally formed with the axle housing.

Preferably, the lower end of the bridge cladding is provided with an opening, and an oil pan is clamped at the opening.

Preferably, still include the clamp, open-ended terminal surface is equipped with a plurality of fixture blocks along its circumferencial direction, the outside of fixture block is equipped with the draw-in groove, the up end of oil pan is equipped with a plurality of cardboard that outwards extend along its circumferencial direction, the cardboard with the fixture block interval sets up, just the fixture block for the cardboard is protrusion downwards, the clamp is located the below of cardboard and joint are in the draw-in groove in the fixture block outside.

Preferably, the tail end of the clamping plate is provided with a limiting part bent downwards, and the limiting part is used for limiting the clamp in the clamping groove.

Preferably, a sealing ring is arranged on the connecting surface of the bridge housing and the oil pan.

Compared with the prior art, the technical scheme has the following advantages:

the application provides an integral type car rear axle, including the gearbox, gearbox both sides integrated into one piece respectively have the bridge involucrum, set up to the integral type structure through with gearbox and bridge involucrum, the faying surface of gearbox and bridge involucrum has been reduced, the problem of this faying surface oil seepage has been stopped takes place, owing to reduce the weight of the bonding panel body, consequently, the weight of rear axle has been alleviateed, can satisfy electric automobile to the requirement of lightweight, a plurality of punches have been reduced simultaneously, the manufacturing procedure and the expense of tapping, the use of bolt has been saved, manufacturing cost is effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a rear axle of an integrated vehicle;

FIG. 2 is a cross-sectional structural schematic of the transmission and axle housing;

FIG. 3 is a schematic view of the structure of the oil pan separated from the bottom of the bridge housing;

FIG. 4 is a bottom schematic view of the integrated structure of the transmission case and the axle housing;

FIG. 5 is another cross-sectional structural schematic of the transmission and axle housing;

fig. 6 is a partial structure diagram of fig. 5.

The reference numbers are as follows:

the differential gear comprises a gear box 1, a bridge packing shell 2, a clamping block 2-1, a bridge pipe 3, a half shaft 4, a wheel hub 5, an oil pan 6, a clamping plate 6-1, a limiting part 6-2, a sealing ring 7, a hoop 8, a differential bearing seat 9 and an oil seal 10.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 6, fig. 1 is a schematic cross-sectional view of an integrated rear axle of an automobile; FIG. 2 is a cross-sectional structural schematic of the transmission and axle housing; FIG. 3 is a schematic view of the structure of the oil pan separated from the bottom of the bridge housing; FIG. 4 is a bottom schematic view of the integrated transmission and axle housing structure; FIG. 5 is another cross-sectional structural schematic of the transmission and axle housing; fig. 6 is a partial structural diagram of fig. 5.

The embodiment of the application provides an integral type car rear axle, including gearbox 1, 1 both sides of gearbox are integrated into one piece respectively has axle involucrum 2, and axle involucrum 2 is used for the cover to establish on bridge pipe 3, and wherein bridge pipe 3 stretches into and is equipped with oil blanket 10 between the inner of axle involucrum 2 and the axle involucrum 2, is equipped with semi-axis 4 in the bridge pipe 3, and the outer end of semi-axis 4 is equipped with wheel hub 5, connects through differential mechanism between two semi-axis 4, is equipped with differential mechanism bearing frame 9 in the axle involucrum 2. Through setting up gearbox 1 and axle involucrum 2 to the integral type structure, reduced gearbox 1 and axle involucrum 2's faying face, stopped this faying face problem emergence of oil leakage, owing to reduce the weight of the combination panel body, consequently lightened the weight of rear axle, can satisfy electric automobile to the requirement of lightweight, reduced a plurality of manufacturing procedure and the expense of punching, tapping simultaneously, saved the use of bolt, effectively reduced manufacturing cost.

The gearbox 1 and the axle sheath 2 can be integrally formed, for example, the gearbox 1 and the axle sheath 2 can be integrally cast into a structural form, or the axle sheath 2 and the gearbox 1 are respectively manufactured in advance and then integrally formed by welding, or part of a box body structure of the gearbox 1 and the axle sheath 2 are integrally formed and then connected with other structures of the gearbox 1. In addition, the integral forming can be carried out through other modes, as long as the joint surface between the gearbox 1 and the axle casing 2 can be removed, and the selection can be specifically carried out according to the actual processing mode.

Further, the lower extreme of bridge involucrum 2 is equipped with the opening, and the opening part joint has oil pan 6, through carrying out the joint with oil pan 6, can reduce the process of punching and tapping on oil pan 6 and bridge involucrum 2, has also saved the use of bolt, has reduced the working costs of product, also is convenient for oil pan 6 and bridge involucrum 2's being connected in addition.

Furthermore, the oil pan further comprises a clamp 8, the end face of the opening is provided with a plurality of clamping blocks 2-1 along the circumferential direction, the clamping blocks 2-1 are preferably uniformly distributed at equal intervals, the clamping blocks 2-1 are preferably arc-shaped holes, namely the outer side faces of the clamping blocks 2-1 are on the same circle, clamping grooves are formed in the outer sides of the clamping blocks 2-1, the upper end face of the oil pan 6 is provided with a plurality of clamping plates 6-1 extending outwards along the circumferential direction, the clamping plates 6-1 are also preferably uniformly distributed at equal intervals, the clamping plates 6-1 and the clamping blocks 2-1 are arranged at intervals, namely one clamping plate 6-1 is clamped between every two adjacent clamping blocks 2-1, the clamping block 2-1 protrudes downwards relative to the clamping plate 6-1, and the clamp 8 is located below the clamping plate 6-1 and clamped in the clamping groove in the outer side of the clamping block 2-1.

In order to improve the position stability of the clamp 8, the tail end of the clamping plate 6-1 is provided with a limiting part 6-2 bent downwards, and the limiting part 6-2 is used for limiting the clamp 8 in the clamping groove. In addition, the connecting surface of the bridge packing shell 2 and the oil pan 6 is provided with a sealing ring 7, and the sealing performance of the oil pan 6 can be improved through the sealing ring 7.

It should be noted that, in the above embodiment, the clamp 8 is connected through the clamping groove on the outer side of the clamping block 2-1, in addition, the oil pan 6 may also be fixed in a tightening manner, for example, a groove is formed on the inner side of the clamping block 2-1, and after the clamping plate 6-1 on the oil pan 6 is clamped between adjacent clamping blocks 2-1, the oil pan 6 may be supported in the groove through the clamp spring ring, so as to support the oil pan 6.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The integrated automobile rear axle provided by the application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (8)

1. The utility model provides an integral type car rear axle, includes gearbox (1), its characterized in that, gearbox (1) both sides integrated into one piece respectively have bridge involucrum (2), bridge involucrum (2) are used for the cover to establish on bridge pipe (3), be equipped with semi-axis (4) in bridge pipe (3).

2. The one-piece motor vehicle rear axle according to claim 1, characterized in that the gearbox (1) and the axle housing (2) are of one-piece cast-in-one construction.

3. The one-piece motor vehicle rear axle according to claim 1, characterized in that the axle housing (2) is welded to the transmission case (1) as a one-piece structure.

4. The one-piece motor vehicle rear axle according to claim 1, characterized in that part of the box structure of the gearbox (1) is integrally formed with the axle housing (2).

5. The integrated automobile rear axle according to claim 1, characterized in that an opening is arranged at the lower end of the axle housing shell (2), and an oil pan (6) is clamped at the opening.

6. The integrated automobile rear axle according to claim 5, further comprising a clamp (8), wherein the end surface of the opening is provided with a plurality of clamping blocks (2-1) along the circumferential direction, the outer sides of the clamping blocks (2-1) are provided with clamping grooves, the upper end surface of the oil pan (6) is provided with a plurality of clamping plates (6-1) extending outwards along the circumferential direction, the clamping plates (6-1) and the clamping blocks (2-1) are arranged at intervals, the clamping blocks (2-1) protrude downwards relative to the clamping plates (6-1), and the clamp (8) is located below the clamping plates (6-1) and clamped in the clamping grooves on the outer sides of the clamping blocks (2-1).

7. The integrated automobile rear axle according to claim 6, wherein the end of the clamping plate (6-1) is provided with a downward bent limiting part (6-2), and the limiting part (6-2) is used for limiting the clamping band (8) in the clamping groove.

8. The one-piece motor vehicle rear axle according to claim 5, characterized in that the connection face of the axle housing (2) and the oil sump (6) is provided with a sealing ring (7).

Images