CN204322975U - A kind of rear damping for new-energy automobile - Google Patents

Abstract

The utility model relates to a kind of rear damping for new-energy automobile, it is characterized in that: rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4), snubber block assembly (5), front and back limit base (6), clevis bolt seat (7), left and right limit base (8), rear shock absorber bearing (9), rear shock absorber assembly (10) composition rear-swing arm assembly; Rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4), snubber block assembly (5), front and back limit base (6), clevis bolt seat (7), left and right limit base (8), rear shock absorber bearing (9) are by being welded to connect, and rear shock absorber (10) is arranged on rear-swing arm girder (2); Rear-swing arm assembly is connected by clevis bolt with rear driving axle assembly (1).The utility model has scientific and reasonable for structure, and damping is stable, effective, installs advantage simple, easy to maintenance.

Description

A kind of rear damping for new-energy automobile

Technical field

The utility model relates to new-energy automobile manufacturing technology field, refers in particular to a kind of rear damping for new-energy automobile.

Background technology

Along with social development and the requirement of people to quality of life and quality more and more higher, the cry of society to new-energy automobile development is also more and more higher, progressively issuing and implementing along with national policy, and the progressively raising of the degree of social concern, the production development like the mushrooms after rain especially of new-energy automobile especially pure electric automobile, but along with the development of new-energy automobile especially pure electric automobile emerging industry, the problem of industry development is also presented in face of people clearly.It is power that electronlmobil refers to vehicle power, drives wheels travel with motor, meets the vehicle of arteries of communication, legislative control on safety requirements.Due to less relative to orthodox car to environmental concerns, its prospect is extensively had an optimistic view of, but existing electronlmobil also exists some technical shortcomings:

In electronlmobil field, person skilled is devoted to the research constantly reducing vehicle body deadweight all the time, comprises design new construction, adopts new material etc. to reach energy-conservation and improves the object of continuation of the journey.But thing followed problem occurs again, and that is exactly the traveling comfort of driving.Shock-absorbing improves comfortable necessary means of driving.In general, the less then damping effect of the ratio that vehicle body is heavier, passenger weight accounts for tare is more obvious, certainly also to take into full account that the natural frequency of vehicle itself, the natural frequency and surface conditions etc. of spring are due to the impact by capacity of cell, in electronlmobil, proportional range shared by passenger weight is between 10%-50%, and span is very large.In this case the design of shock mitigation system is just seemed particularly important.In view of in electronlmobil, the changes in weight degree of passenger is for overall car weight, and proportion is very high, therefore adopts traditional shock mitigation system principle of design obviously can not meet requirements again.But difficulty is how to design a set of shock mitigation system cleverly, balances out the impact that passenger weight constant interval is large.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides the rear damping that a kind of structure for electronlmobil is simple, connection and reasonable arrangement, stability are high, traveling comfort is good.

For achieving the above object, technical scheme provided by the utility model is: a kind of rear damping for new-energy automobile, it is characterized in that: rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4), snubber block assembly (5), front and back limit base (6), clevis bolt seat (7), left and right limit base (8), rear shock absorber bearing (9), rear shock absorber assembly (10) composition rear-swing arm assembly;

Rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4), snubber block assembly (5), front and back limit base (6), clevis bolt seat (7), left and right limit base (8), rear shock absorber bearing (9) are by being welded to connect, and rear shock absorber assembly (10) is arranged on rear-swing arm girder (2);

Rear-swing arm assembly is connected by clevis bolt with rear driving axle assembly (1).

The beneficial effects of the utility model are:

1, this programme simplifies whole rear shock mitigation system, whole rear damping trailing arm part adopt two independently triangle swing arm be connected with rear driving axle respectively, not only reduce the assembly difficulty of overall swing arm type, and in flexible adjustment, had larger improvement, be conducive to the damping self-control of rugged road conditions.

2, the self stability aspect of the three-legged structure of rear-swing arm is also optimize greatly, as everyone knows, triangular structure is most stable structure, and the high strength rectangular steel pipe that have employed 30*50*3 does skeleton, make the stability of the Rigidity and strength of rear-swing arm and structure more reliable, anti-bumpiness strengthens greatly.

3, drum-type structure selected by the damping spring of bumper, more meet car load under load condition jolt road conditions travel time suffered by force time history, make driver and crew feel more comfortable, shock-absorbing effect is obvious.

Accompanying drawing illustrates:

Fig. 1 is the utility model integral structure schematic diagram;

Fig. 2 is the utility model rear-swing arm assembly structure schematic diagram;

Detailed description of the invention:

Below in conjunction with drawings and Examples, the utility model is described in further detail:

As shown in Figure 1, the rear damping of this battery-driven car includes rear shock absorber bearing, rear-swing arm, rear shock absorber assembly and special U-bolt etc. by it and assembles, whole damping by U-bolt together with rear driving axle bolt, drive axle is welded with two personality board spring abutments, contact with the face of rear-swing arm for drive axle, increase the stability of connection;

As shown in Figure 2, rear-swing arm assembly in rear damping of the present invention, overall structure is the triangular structure that stability is stronger, by rear-swing arm girder 2, rear-swing arm crossbeam 3, rear-swing arm diagonal ligament beam 4, snubber block assembly 5, front and back limit base 6, clevis bolt seat 7, left and right limit base 8 and rear shock absorber bearing 9 by being welded.Wherein high-quality high strength shaped steel is adopted to be raw MAT'L by rear-swing arm girder 2, rear-swing arm crossbeam 3, rear-swing arm diagonal ligament beam 4; Front and back limit base 6 and left and right limit base 8 are used for being limited in respectively the front and back of rear driving axle and rear-swing arm and the relative displacement of left and right in vehicle travel process; Snubber block assembly 5 forms by fixed sleeves with cylindrical rubber block two parts of reinforcing bar, and damping rubber block is assembled together by interference fit and fixed sleeves, and repair and replacement are more convenient.

The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.

Claims (2)

1. the rear damping for new-energy automobile, it is characterized in that: rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4), snubber block assembly (5), front and back limit base (6), clevis bolt seat (7), left and right limit base (8), rear shock absorber bearing (9), rear shock absorber assembly (10) composition rear-swing arm assembly;

Rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4), snubber block assembly (5), front and back limit base (6), clevis bolt seat (7), left and right limit base (8), rear shock absorber bearing (9) are by being welded to connect, and rear shock absorber assembly (10) is arranged on rear-swing arm girder (2);

Rear-swing arm assembly is connected by clevis bolt with rear driving axle assembly (1).

2. a kind of rear damping for new-energy automobile according to claim 1, is characterized in that: rear-swing arm girder (2), rear-swing arm crossbeam (3), rear-swing arm diagonal ligament beam (4) adopt high strength type steel to make.