CN210082829U

CN210082829U - New energy automobile is with bearing and holding and turn round disconnect-type rear axle

Info

Publication number: CN210082829U
Application number: CN201920967657.3U
Authority: CN
Inventors: 赖长发; 谭刚平; 黄苏刚; 万雄飞; 张学冉; 姜致强
Original assignee: Jiangxi Jiangling Chassis Co Ltd
Current assignee: Jiangxi Jiangling Chassis Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-02-18
Anticipated expiration: 2029-06-26

Abstract

The utility model relates to a new energy automobile is with bearing and holding and turning round separation type rear axle, including brake drum, wheel bolt, nut, interior semi-axis, stopper, bearing frame, semi-axis bearing, bolt, jump ring, supporting bearing, drive semi-axis, axle housing, U type bolt, leaf spring, plate spring seat, the outside of semi-axis including the brake drum sets up, and the outside of semi-axis including semi-axis bearing housing is established, the inboard of semi-axis including the drive semi-axis sets up, the tip of drive semi-axis stretches into in the axle housing. The rear axle improves the vertical and lateral impact resistance of the existing trailing arm type rear axle, improves the ground clearance of the whole vehicle by about 20mm, reduces the weight of the rear axle by about 20kg, reduces the product cost, greatly simplifies the processing and production process, and improves the production and management efficiency.

Description

New energy automobile is with bearing and holding and turn round disconnect-type rear axle

Technical Field

The utility model belongs to the technical field of auto-parts and specifically relates to a new energy automobile is with bearing and holding and turn round disconnect-type rear axle.

Background

The axle is located the end of whole car power transmission system, uses extensively on the new energy automobile. At present, a parallel shaft type electric drive axle with a motor directly connected with a reduction gearbox is adopted on a mainstream new energy commercial vehicle, and the electric drive axle is a rear axle integrating bearing and torque bearing; because of the influence of the mass and the offset of the motor, the whole vehicle using the electric drive axle has the defects of heavy unsprung mass and large driving noise of the whole vehicle.

In order to avoid the defects of the bearing and torque-bearing integrated electric drive axle, a 'trailing arm' rear axle with bearing and torque-bearing separated is used for a certain style of domestic logistics vehicle, and by adopting the rear axle and the whole vehicle, one of the rear axle and the whole vehicle can be pertinently promoted according to different requirements of customers on the bearing capacity and the power performance of the vehicle, so that the platformization and diversification of products can be realized, and even the electric drive axle is upgraded and matched to be applied to vehicle types of passenger vehicles, and the market potential is huge.

However, the weight reduction of the unsprung mass of the existing trailing arm type rear axle is limited, and the defects of low ground clearance, weak shock resistance and the like are brought; the utility model aims at providing a better bearing of performance and bear the weight of and turn round disconnect-type rear axle in order to solve above-mentioned defect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defect that prior art exists, provide a new energy automobile with bear with hold and turn round disconnect-type rear axle.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a new energy automobile is with bearing and holding and turn round separation type rear axle, includes brake drum, wheel bolt, nut, interior semi-axis, stopper, bearing frame, semi-axis bearing, bolt, jump ring, support bearing, drive semi-axis, axle housing, U type bolt, leaf spring seat, the outside of semi-axis including the brake drum sets up, and the outside of semi-axis including the semi-axis bearing housing is established, the inboard of semi-axis including the drive semi-axis sets up, and the tip of drive semi-axis stretches into in the axle housing.

Furthermore, a plurality of wheel bolts are pressed into the inner half shaft to be combined into an inner half shaft assembly.

Furthermore, the half shaft bearing is pressed into the bearing seat, the brake is placed into the bearing seat, and then the half shaft bearing is integrally placed at the journal of the inner half shaft assembly to be compressed, so that the half shaft bearing and the brake are combined into a wheel side assembly.

Furthermore, the support bearing is pressed into the driving half shaft and is locked by the clamp spring, and the driving half shaft assembly is formed by combination.

Further, the bolt passes through stopper and the bearing frame of wheel limit assembly in proper order to screw up and be fixed in the screw hole of axle housing.

Further, the driving half shaft assembly penetrates into the inner half shaft from inside to outside and is locked by a nut, and the brake drum is sleeved into the wheel bolt and tightly attached to the inner half shaft.

Furthermore, the U-shaped bolt sequentially penetrates through the axle housing, the plate spring and the plate spring seat and is locked and fixed through a plate spring nut.

Furthermore, the other end of the driving half shaft assembly is connected with the reduction gearbox, and the power of the reduction gearbox is transmitted to the inner half shaft to drive the vehicle to move forward.

The utility model has the advantages that: the rear axle improves the vertical and lateral impact resistance of the existing trailing arm type rear axle, improves the ground clearance of the whole vehicle by about 20mm, reduces the weight of the rear axle by about 20kg, reduces the product cost, greatly simplifies the processing and production process, and improves the production and management efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic side view of the present invention.

Detailed Description

In the figure: the brake drum comprises a brake drum 1, wheel bolts 2, nuts 3, an inner half shaft 4, a brake 5, a bearing seat 6, a half shaft bearing 7, bolts 8, a clamp spring 9, a support bearing 10, a driving half shaft 11, an axle housing 12, a U-shaped bolt 13, a plate spring 14, a plate spring seat 15 and a plate spring nut 16; inner half axle assembly 001, wheel limit assembly 002, drive half axle assembly 003.

Detailed Description

As shown in fig. 1 and fig. 2, a rear axle with separated bearing and torsion for a new energy automobile comprises a brake drum 1, wheel bolts 2, nuts 3, an inner half shaft 4, a brake 5, a bearing seat 6, a half shaft bearing 7, bolts 8, a clamp spring 9, a support bearing 10, a driving half shaft 11, an axle housing 12, U-shaped bolts 13, a plate spring 14, a plate spring seat 15 and plate spring nuts 16.

Wherein, a certain number of wheel bolts 2 are pressed into the inner half shaft 4 to form an inner half shaft assembly 001; pressing a half shaft bearing 7 into a bearing seat 6, putting a brake 5, integrally placing the half shaft bearing at the journal of an inner half shaft 4 of an inner half shaft assembly 001 for pressing, and combining into a wheel edge assembly 002;

pressing the support bearing 10 into the driving half shaft 11, locking by using a clamp spring 9, and combining into a driving half shaft assembly 003;

further, a bolt 8 sequentially penetrates through the brake 5 and the bearing seat 6 of the wheel edge assembly 002 and is screwed and fixed in a threaded hole of the axle housing 12; the driving half shaft assembly 003 penetrates into the inner half shaft 4 from inside to outside and is locked by the nut 3, and then the brake drum 1 is sleeved into the wheel bolt 2 and is tightly attached to the inner half shaft 4; the U-shaped bolt 13 sequentially penetrates through the axle housing 12, the plate spring 14 and the plate spring seat 15 and is locked and fixed by a plate spring nut 16; the other end of the driving half shaft assembly 003 is respectively connected with a reduction gearbox, and the power of the reduction gearbox is transmitted to the inner half shaft 4 to drive the vehicle to move forward.

The rear axle bears and bears the weight of the torsion separation, stripping motor and reduction box, make the unsprung mass of the whole vehicle reduce greatly; the U-shaped bolt passes through the axle housing, the plate spring and the plate spring seat of the rear axle in sequence and is fastened by the nut, and the ground clearance of the whole automobile is close to that of the traditional rear axle and higher than that of the existing trailing arm type rear axle.

The axle housing is formed by welding an integrally formed axle head and a seamless steel pipe together to form a front convex hollow shape so as to arrange a motor, a reduction gearbox and other parts at the inner hollow position conveniently; the tooling is used for positioning before welding the axle housing, the deformation after welding is ensured to be small, and the axle housing is free from machining after welding.

The trailing arm type rear axle has the advantages that the vertical and lateral impact resistance of the existing trailing arm type rear axle is improved, the ground clearance of the whole automobile is improved by about 20mm, the rear axle is reduced by about 20kg, the product cost is reduced, the processing and production process is greatly simplified, and the production and management efficiency is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a new energy automobile is with bearing and holding and turn round separation type rear axle, its characterized in that, including brake drum, wheel bolt, nut, interior semi-axis, stopper, bearing frame, semi-axis bearing, bolt, jump ring, supporting bearing, drive semi-axis, axle housing, U type bolt, leaf spring, plate spring seat, the outside of semi-axis including the brake drum setting, semi-axis bearing housing establish the outside of semi-axis including, the inboard of semi-axis including the drive semi-axis setting, the tip of drive semi-axis stretches into in the axle housing.

2. The rear axle with the bearing and torsion separating functions for the new energy automobile as claimed in claim 1, wherein a plurality of wheel bolts are pressed into the inner half axle to form an inner half axle assembly.

3. The bearing and torsion separation type rear axle for the new energy automobile as claimed in claim 2, wherein the half axle bearing is pressed into a bearing seat, a brake is placed in the bearing seat, and then the bearing seat and the brake are integrally placed at a shaft neck of an inner half axle assembly to be compressed, so that a wheel side assembly is formed.

4. The bearing and torsion separation type rear axle for the new energy automobile as claimed in claim 3, wherein the support bearing is pressed into the drive half shaft and locked by a snap spring to form a drive half shaft assembly.

5. The bearing and torque-bearing separated type rear axle for the new energy automobile as claimed in claim 4, wherein bolts sequentially pass through the brake and the bearing seat of the wheel rim assembly and are screwed and fixed in threaded holes of the axle housing.

6. The bearing and torque-bearing separated rear axle for the new energy automobile as claimed in claim 5, wherein the drive half axle assembly penetrates through the inner half axle from inside to outside, and is locked by a nut, and the brake drum is sleeved into the wheel bolt and tightly attached to the inner half axle.

7. The bearing and torsion-bearing separated type rear axle for the new energy automobile as claimed in claim 6, wherein U-shaped bolts sequentially penetrate through the axle housing, the plate spring and the plate spring seat and are locked and fixed through plate spring nuts.

8. The bearing and torque-bearing separated type rear axle for the new energy automobile as claimed in claim 7, wherein the other end of the driving half shaft assembly is connected with a reduction gearbox, and power of the reduction gearbox is transmitted to the inner half shaft to drive the automobile to move forward.