CN201961117U

CN201961117U - Rear air suspension frame

Info

Publication number: CN201961117U
Application number: CN2010206716629U
Authority: CN
Inventors: 王华坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2011-09-07
Anticipated expiration: 2020-12-21

Abstract

The utility model relates to a rear air suspension frame which solves the problems of complex structure, multitudinous parts and the like of a rear air suspension frame of a conventional four-air bag and four-shock absorber structure. The rear air suspension frame comprises a frame, a longitudinal thrusting rod support, an air spring, an air bag upper support, a shock absorber upper support, a shock absorber, a drive axle, a stabilizer bar hoisting rod, an stabilizer bar upper support, a transverse stabilizer bar, a trailing arm beam lower cover plate, a trailing arm beam, an air bag base, a longitudinal thrusting rod, a V-shaped thrusting rod rear support, a height adjusting valve, a thrusting rod, a cross beam and a thrusting rod support, wherein the lower support frame of the air spring is the trailing arm beam, the trailing arm beam is formed through vertical superposition of two pieces of plate spring material, a trailing arm beam support is fixed between the two pieces of plate spring material, and both the shock absorber and the stabilizer bar are connected to the trailing arm beam support. The utility model solves the problem of complex structure and multitudinous parts in the conventional air suspension frame bracket, as well as reliability weakening, high manufacturing cost and the like caused by the multitudinous parts, and has a better riding comfort.

Description

Back air weighing apparatus suspension

Technical field

The utility model relates to vehicular field, is specifically related to the back air weighing apparatus suspension of heavier-duty heavy goods vehicles.

Background technology

In the known present air suspension utilization, guide arm can only play directional tagging, and horizontal thrust shaft bar, damper bracket design separately; The horizontal thrust pole length is fixed, commonality is not enough, inconvenience is installed, hunched beam is splicing or welding, technology, complex structure, productive costs height, damper bracket, stabilizer bar arm do not know that separately number of parts increases, the number of parts increase also just means the increase of tooling cost, the reduction of reliability, and the layout of part also is subjected to the influence of locus.Therefore existing type air suspension exist complex structure, part various, all the user is brought inconvenience.

The utility model content

The utility model purpose is to provide a kind of free vibration of the vehicle body that causes because of impact of well decaying, and be suppressed near the vehicle body forced vibration resonance frequency amplitude, improve the back air suspension of travelling comfort.

In order to achieve the above object, back of the present utility model air weighing apparatus suspension comprises:

A kind of back air suspension is four gasbags four bumper structures, comprising: vehicle frame, longitudinal thrust shaft bar, air bellow, air bag upper bracket, shock absorber upper bracket, shock absorber, drive axle, stabilizer rod suspension rod, stabilizer rod upper bracket, Panhard rod, trailing arm beam lower cover, trailing arm beam, air bag base, longitudinal rod, V-type propelling rod after poppet, height adjusting valve, propelling rod, crossbeam, track bar bracket.It is characterized in that: the lower support frame of air bellow is a kind of trailing arm beam with the moulding of leaf spring material heat treatment, described trailing arm beam vertically superposes with two leaf spring materials, use bolt one trailing arm boom support therebetween, trailing arm boom support upper end connects bumper, and the lower end connects Panhard rod.

Further, described longitudinal thrust shaft bar integral body is triangular form, its bending welded frame rear end, upper end, longitudinal thrust shaft bar bottom bending welding longitudinal rod.

Further, the described Panhard rod other end connects to ground by stabilizer rod suspension rod and stabilizer rod upper bracket; Panhard rod is the arc that can avoid trailing arm beam and wheel interference.

Trailing arm beam main body is with the moulding of leaf spring material heat treatment, and center fixed trailing arm boom support and two ends are the fixation balloon base respectively, has to be easy to realize, simple for structure, multi-functionally to be integrated in one, to bear the outstanding characteristics of reverse stress ability.Avoided the interference of air chamber and wheel through the leaf spring trailing arm beam actv. after heat-treating profiled with air bellow.The gravity that trailing arm boom support has replaced two shock absorber supports and lateral stability shaft bars of homonymy and born air bag makes the purpose of reducing the number of part, simplifying technology, cost-cutting be achieved.

Longitudinal thrust shaft bar integral body is the alternative square type in the past of triangular form can reduce materials saving cost.

Description of drawings

Fig. 1 is a back of the present utility model air suspension structural representation.

Fig. 2 is a birds-eye view of the present utility model.

Among the figure: 1, vehicle frame, 2, the longitudinal thrust shaft bar, 3, air bellow, 4, the air bag upper bracket, 5, shock absorber upper bracket, 6, shock absorber, 7, drive axle, 8, the stabilizer rod suspension rod, 9, stabilizer rod upper bracket, lO, Panhard rod, 1 l, trailing arm boom support, 12, trailing arm beam lower cover, l3, trailing arm beam, l4, air bag base, l5, longitudinal rod, 16, V-type propelling rod after poppet, l7, height adjusting valve, 18, V-type propelling rod, 19, crossbeam, 20, V-type propelling rod front frame.

The specific embodiment

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

The air bellow 3 lower support framves of the back air suspension that provides of the utility model are a kind of trailing arm beam 13 with the moulding of leaf spring material heat treatment as shown in Figure 1, 2, two leaf spring materials of described trailing arm beam 13 usefulness vertically superpose, use bolt one trailing arm boom support 11 therebetween, connect air bellow 3 respectively on the air bag base l4 of trailing arm beam l3 two ends, trailing arm boom support ll upper end connects two shock absorbers, 6 lower ends, the lower end connects Panhard rod lO, and Panhard rod 10 two end portions are the arc that can avoid trailing arm beam 13 and wheel interference; Shock absorber 6 upper ends are connected with shock absorber upper bracket 5 on the vehicle frame, are connected with vehicle frame 1 upper gasbag upper bracket 4 above the air bellow 3.Drive axle 7 tops couple together drive axle 7 and vehicle frame 1 by V-type propelling rod l 8, V-type propelling rod l 8 open ends are arranged in left and right sides vehicle frame 1 inboard, heal up the end be arranged in drive axle 7 directly over, longitudinal rod l5 one end is connected with longitudinal thrust shaft bar 2 on the vehicle frame, one end is connected with drive axle 7 below trailing arm beam lower cover l2, its integral body forms parallel four limit row structures with vehicle frame l below longitudinal thrust l5 bar, wherein said longitudinal thrust shaft bar 2 integral body are triangular form, agent structure is welded for the trench structure bending part, track bar bracket 2 upper end bending welded frames 1 rear end, longitudinal thrust shaft bar 2 bottom bending welding longitudinal rods 15.Vehicle frame l inboard fixing in the left and right sides respectively arranged a height adjusting valve 17, and its adjust bar is connected with drive axle 7; By the variation of height adjusting valve l7 induction suspension height, filling, exit of control air spring 3 changes air bag rigidity, reaches adjusting suspension height, keeps good riding comfort, vibration isolation, prevents the suspension noise, reduces the effect of the impact of road pavement.Therefore, originally be that the utility model design concept is new, road-holding property, ride comfort are superior, simple for structure, and job operation is simple, low cost of manufacture, sky asks and utilizes rationally to have very strong competitive power.

It should be noted that at last: above embodiment only is used to illustrate the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. air suspension after a kind for four gasbags four bumper structures, comprising: vehicle frame, the longitudinal thrust shaft bar, air bellow, air bag upper bracket, the shock absorber upper bracket, shock absorber, drive axle, stabilizer rod suspension rod, the stabilizer rod upper bracket, Panhard rod, trailing arm beam lower cover, trailing arm beam, the air bag base, longitudinal rod, V-type propelling rod after poppet, height adjusting valve, propelling rod, crossbeam, track bar bracket is characterized in that: the lower support frame of air bellow is a kind of trailing arm beam with the moulding of leaf spring material heat treatment, described trailing arm beam vertically superposes with two leaf spring materials, use bolt one trailing arm boom support therebetween, trailing arm boom support upper end connects bumper, and the lower end connects Panhard rod.

2. back according to claim 1 air suspension, it is characterized in that: described longitudinal thrust shaft bar integral body is triangular form, its bending welded frame rear end, upper end, longitudinal thrust shaft bar bottom bending welding longitudinal rod.

3. back according to claim 1 air suspension, it is characterized in that: the described Panhard rod other end connects to ground by stabilizer rod suspension rod and stabilizer rod upper bracket; Panhard rod is the arc that can avoid trailing arm beam and wheel interference.