CN203331771U

CN203331771U - Series connection type spring and shock absorber arrangement structure

Info

Publication number: CN203331771U
Application number: CN2013204335560U
Authority: CN
Inventors: 李迎浩; 郑贤文; 乐智
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2013-12-11
Anticipated expiration: 2023-07-19

Abstract

The utility model relates to a series connection type spring and shock absorber arrangement structure, and belongs to the technical field of components relevant to a vehicle suspension system. The series connection type spring and shock absorber arrangement structure comprises a spring, a shock absorber, an upper shock absorber hinge pin, an upper support and a lower control arm. The upper connecting end of the shock absorber is movably connected with the upper support through the upper shock absorber hinge pin. The shock absorber is sleeved with the spring. The upper end of the spring is fixedly connected to the upper support. The lower connecting end of the shock absorber and the lower end of the spring are movably connected with the lower control arm. The series connection type spring and shock absorber arrangement structure enables a suspension spring to have higher freedom of motion when the suspension spring moves along with the vehicle suspension system, effectively reduces the additional bending stress of the suspension spring, improves the operation reliability of the suspension spring, and prolongs the service life of the suspension spring.

Description

A kind of tandem spring and shock absorber arrangement structure

Technical field

The utility model relates to automotive component, relates to particularly a kind of tandem spring and shock absorber arrangement structure, belongs to vehicle suspension system associated components technical field.

Background technology

The tandem spring adopted in existing automotive suspension system and shock absorber arrangement structure are as shown in Figure 1, on shock absorber 3, coupling end is connected with upper bracket 2 by shock absorber upper pin 1, lower coupling end is connected with shock absorber undersetting 6 by shock absorber lower bearing pin 5, simultaneously shock absorber undersetting 6 is fixedly connected with suspension Lower control arm 7, like this shock absorber Shang Xia 3 coupling end all can move and carry out corresponding rotation with suspension; Coil spring 4 is placed in outside shock absorber 3, and upper end is fixed on upper bracket 2, and lower end is fixed on Lower control arm 7, and two ends all can not be relatively rotated with the suspension motion.This arrangement structure form, due to spring, shock absorber install in series, is therefore comparatively saved space, but has also brought more following problems simultaneously:

1, spring is because two ends are relatively fixing, lack necessary degree of freedom, therefore in the suspension motion process, easily cause spring that significant flexural deformation also occurs except normal compressive deformation, very easily cause the movement interference of spring and shock absorber when suspension travel is larger, thereby the function of suspension system is produced to harmful effect;

2, the flexural deformation meeting of spring causes the distribution of stress inequality on spring, and in the spring section occured bending and deformation, lateral stress increases, and easily causes its early fracture, affects reliability and the service life of spring.

The utility model content

The purpose of this utility model is exactly the defect for prior art, and a kind of tandem spring and shock absorber arrangement structure are provided.

The technical solution adopted in the utility model is: it comprises spring, shock absorber, shock absorber upper pin, upper bracket and Lower control arm, on described shock absorber, coupling end is flexibly connected by shock absorber upper pin and upper bracket, described spring is placed in outside shock absorber, described spring upper end is fixedly connected on upper bracket, and under described shock absorber, coupling end and spring lower end and Lower control arm are flexibly connected.

Further, described Lower control arm is provided with hanger, described spring lower end is fixedly connected with the spring lower support matched with hanger, and described spring lower support is flexibly connected by lower pin and hanger, and under described shock absorber, coupling end is flexibly connected by lower pin and hanger.

Further, described spring lower support is the suspension ring structure fixing with the spring lower end.

The utility model is compared with existing tandem spring, shock absorber arrangement structure, can make axle spring there is larger freedom of motion when moving with vehicle suspension system, also can well avoid the generation of whole system motion process medi-spring and shock absorber movement interference phenomenon even adopt tandem spring, shock absorber arrangement structure in larger suspension system at suspension travel, effectively reduce the additional bending stress of axle spring simultaneously, improve functional reliability and the service life of spring.

The accompanying drawing explanation

Fig. 1 is the prior art schematic diagram;

Fig. 2 the utility model structural representation;

Fig. 3 is the utility model exploded view.

In figure, pin, 11-hanger under 1-shock absorber upper pin, 2-upper bracket, 3-shock absorber, 4-spring, 5-shock absorber lower bearing pin, 6-shock absorber undersetting, 7-Lower control arm, 8-shock absorber upper bracket, 9-spring lower support, 10-.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form and limit the utility model.

As Fig. 2, shown in Fig. 3, the utility model comprises spring 4, shock absorber 3, shock absorber upper pin 1, upper bracket 2, shock absorber upper bracket 8 and Lower control arm 7, shock absorber upper bracket 8 is fixedly connected with upper bracket 2, on shock absorber 3, coupling end is by shock absorber upper pin 1, shock absorber upper bracket 8 is flexibly connected with upper bracket 2, spring 4 is placed in outside shock absorber 3, spring 4 upper ends are fixedly connected on upper bracket 2, Lower control arm 7 is provided with hanger 11, spring 4 lower ends are fixedly connected with the spring lower support 9 matched with hanger 11, spring lower support 9 is flexibly connected by lower pin 10 and

hanger

11, 3 times coupling ends of shock absorber are flexibly connected by lower pin 10 and hanger 11, spring lower support 9 is the suspension ring structure fixing with spring 4 lower ends.

As shown in Figure 3, spring 4 lower ends are fixedly connected with spring lower support 9, and can rotate around the axle I with spring lower support 9; Shock absorber 3 lower ends all keep being rotationally connected by lower pin 10 and the hanger 11 on Lower control arm 7 with spring lower support 9.By spring lower support 9 and the combined action of lower pin 10, make spring 4 can relatively rotate around axle I and Lower control arm 7 with suspension compresses, the reciprocating while that stretches, when avoiding spring 4 to occur bending and deformation causing same shock absorber 3 to produce interfering, effectively reduce the additional bending stress of spring 4, improve its reliability of service and life-span.

Simultaneously, by the helical spring upper attachment point of reasonable Arrangement position, can make in be controlled at ± 5o of the amount of spin scope of coil spring upper end with the suspension motion, so upper end still adopts the spring fixed type to connect.With both ends of the spring all rotating arrangement structure mode compare, this frame mode has reduced the layout size of spring, shock absorber on the one hand, has also improved on the other hand the stability of spring work, remarkable flexural deformation can not occur in this outer spring yet.

The content that this specification sheets is not described in detail belongs to the known prior art of professional and technical personnel in the field.

Claims

1. a tandem spring and shock absorber arrangement structure, it comprises spring, shock absorber, shock absorber upper pin, upper bracket and Lower control arm, on described shock absorber, coupling end is flexibly connected by shock absorber upper pin and upper bracket, described spring is placed in outside shock absorber, described spring upper end is fixedly connected on upper bracket, it is characterized in that: under described shock absorber, coupling end and spring lower end and Lower control arm are flexibly connected.

2. a kind of tandem spring according to claim 1 and shock absorber arrangement structure, it is characterized in that: described Lower control arm is provided with hanger, described spring lower end is fixedly connected with the spring lower support matched with hanger, described spring lower support is flexibly connected by lower pin and hanger, and under described shock absorber, coupling end is flexibly connected by lower pin and hanger.

3. a kind of tandem spring according to claim 2 and shock absorber arrangement structure is characterized in that: described spring lower support for the fixing suspension ring structure in spring lower end.