阅读说明：本技术 一种后螺旋弹簧上安装座 (Last mount pad of back coil spring ) 是由 李海龙 于 2021-08-31 设计创作，主要内容包括：本发明涉及一种后螺旋弹簧上安装座,包括橡胶本体和设在其中的金属圆环骨架,其特征是：所述橡胶本体呈圆环形,具有本体厚度和本体宽度,在橡胶本体的下面设有后螺旋弹簧接触部；所述金属圆环骨架具有圆环厚度和圆环宽度；金属圆环骨架与橡胶本体通过硫化为一整体,所述金属圆环骨架与橡胶本体下面的距离为本体厚度的2/3。本发明既能满足整车减振降噪的需求,又能满足后螺旋弹簧上安装座耐久性及规避脱出的要求。(The invention relates to an upper mounting seat of a rear spiral spring, which comprises a rubber body and a metal ring framework arranged in the rubber body, and is characterized in that: the rubber body is annular and has a body thickness and a body width, and a rear spiral spring contact part is arranged below the rubber body; the metal ring framework is provided with a ring thickness and a ring width; the metal ring framework and the rubber body are integrated through vulcanization, and the distance between the metal ring framework and the lower face of the rubber body is 2/3 of the thickness of the rubber body. The invention can meet the requirements of vibration reduction and noise reduction of the whole vehicle and the requirements of durability and escape prevention of the mounting seat on the rear spiral spring.)

1. The utility model provides a back coil spring goes up mount pad, includes rubber body (1) and establishes metal ring skeleton (2) wherein, characterized by: the rubber body (1) is annular and has a body thickness (12) and a body width (13), and a rear spiral spring contact part (14) is arranged below the rubber body; the metal ring framework (2) is provided with a ring thickness (22) and a ring width (23); the metal ring framework (2) and the rubber body (1) are integrated through vulcanization, and the distance between the metal ring framework (2) and the lower surface of the rubber body (1) is 2/3 of the thickness (12) of the rubber body.

2. The rear coil spring upper mount of claim 1, wherein: the thickness (12) of the circular ring of the metal circular ring framework (2) is equal to or larger than 1 mm.

3. The upper rear coil spring mounting seat according to claim 1 or 2, wherein: the width (13) of the body of the metal ring framework (2) is equal to or larger than the width of the rear spiral spring contact part (14).

4. The upper rear coil spring mounting seat according to claim 1 or 2, wherein: eight through holes (11) which are distributed equidistantly are arranged at the edge close to the rubber body (1), and eight through holes (21) which are distributed equidistantly are arranged at the central circle position of the width (13) of the body; the eight through holes (11) correspond to the eight through holes (21) in a staggered mode, and included angles between the center lines of the adjacent through holes (11) and the center lines of the through holes (21) are equal and are all 22.5 degrees.

5. The rear coil spring upper mount of claim 4, wherein: the diameter of eight through-holes (11) is 3mm, eight the diameter of via hole (21) also is 3 mm.

6. The upper rear coil spring mounting seat according to claim 1 or 2, wherein: the thickness (12) of the rubber body (1) is 10mm, and the thickness (12) of the metal ring framework (2) is 1.2 mm; the body width (13) of the rubber body (1) is greater than the ring width (23) of the metal ring framework (2).

7. The rear coil spring upper mount of claim 2, wherein: the width (23) of the circular ring of the metal circular ring framework (2) is 13.2 mm.

Technical Field

The invention relates to an automobile chassis suspension system, in particular to an upper mounting seat of a rear spiral spring.

Background

A multi-connecting-rod independent suspension spring behind an existing automobile chassis and a rear shock absorber are separated, and a rear spiral spring is connected with an automobile body after being assembled with a rubber upper seat and a metal bracket. The rubber upper seat mainly aims at reducing vibration and noise, transmitting spring force and not conducting force, so that the rubber upper seat is generally of a pure rubber structure and only has one piece. With the increase of the design size and the load of the automobile, the dynamic mechanics of the rubber upper seat with a pure rubber structure can not meet the requirements of vibration reduction and noise reduction of the automobile under a small impact working condition, and can not meet the requirements of maintaining durability and avoiding separation under a large impact working condition.

The rear spiral spring upper seat structure of the existing automobile is shown in figure 1; the rear coil spring upper seat 20 is press-fitted to the rear coil spring upper seat bracket 10 through the rear coil spring 30, and passes through the sub-frame mounting hole through a stud to be connected to the vehicle body. Because the upper seat of the rear spiral spring of the existing automobile is of a pure rubber structure, the integral rigidity is small, and when the automobile enables the rear spiral spring to be compressed in a limiting way and generate larger lateral force under corresponding working conditions, the problems of crushing and separation of the upper seat of the rear spiral spring, abnormal sound and safety of the whole automobile and the like can be caused under a certain driving mileage. Therefore, the upper seat structure of the rear spiral spring of the existing automobile needs to be improved.

CN209180303U discloses a 'rear spiral spring seat', which comprises a base and a cushion, wherein the cushion is made of TPV (thermoplastic vulcanizate) material, the base is made of PPGF30 material, the base comprises a bottom and a limiting part, the limiting part is arranged on the bottom, the bottom is integrally annular, lugs are uniformly arranged on one surface of the bottom close to the limiting part, a certain distance is arranged among the lugs, the lugs are integrally arc-shaped, and the lugs cover the bottoms 2/3-3/4; the limiting part is in an annular column shape, fixing protrusions are uniformly distributed on the inner side of the limiting part, the fixing protrusions are in a triangular column shape integrally, the height of the limiting part is linear, and reinforcing connecting protrusions are symmetrically arranged; the soft cushion covers the bottom; the novel electric heating furnace is simple in structure, convenient to machine, low in cost and long in service life. The technical solution disclosed in this patent document is a useful attempt in the art.

Disclosure of Invention

The invention aims to provide an upper mounting seat of a rear spiral spring, which can meet the requirements of vibration reduction and noise reduction of a whole vehicle and the requirements of durability and escape prevention of the upper mounting seat of the rear spiral spring.

The invention relates to an upper mounting seat of a rear spiral spring, which comprises a rubber body and a metal ring framework arranged in the rubber body, and is characterized in that: the rubber body is annular and has a body thickness and a body width, and a rear spiral spring contact part is arranged below the rubber body; the metal ring framework is provided with a ring thickness and a ring width; the metal ring framework and the rubber body are integrated through vulcanization, and the distance between the metal ring framework and the lower face of the rubber body is 2/3 of the thickness of the rubber body.

Further, the ring thickness of the metal ring framework is equal to or larger than 1 mm.

Further, the ring width of the metal ring framework is equal to or larger than the width of the contact part of the rear spiral spring.

Furthermore, eight through holes are formed in the edge, close to the rubber body, of the rubber body and are distributed equidistantly, and eight through holes are formed in the central circle of the metal circular ring framework and are distributed equidistantly; the eight through holes correspond to the eight through holes in a staggered mode, and included angles between the center lines of the adjacent through holes and the center lines of the through holes are equal and are all 22.5 degrees.

Further, the diameter of eight through-holes is 3mm, eight the diameter of via hole is 3mm also.

Further, the thickness of the rubber body is 10mm, and the thickness of the metal ring framework is 1.2 mm; the width of the rubber body is larger than the width of the metal ring framework.

Preferably, the ring width of the metal ring framework is 13.2 mm.

The invention has the beneficial effects that:

because the metal ring framework and the rubber body are integrated through vulcanization, and the metal ring framework is arranged at 2/3 with the distance from the lower part of the rubber body being the thickness of the body, when the whole vehicle is subjected to small impact, the mounting seat on the rear spiral spring can be compressed and deformed and can absorb energy, so that the requirements of vibration reduction and noise reduction are met; when the whole vehicle is subjected to large impact, the rear spiral spring has enough rigidity in the process of transmitting force to ensure durability and is not pressed out.

Because the metal ring framework is vulcanized in the rubber body in a certain size and position, the dynamic mechanics of the mounting seat on the rear spiral spring is changed, and the overall rigidity of the mounting seat on the rear spiral spring is increased;

because the edges of the rubber body and the metal ring framework are uniformly provided with the through holes or the through holes, when the mounting seat on the rear spiral spring is compressed at the limit, the deformation allowance of the metal ring framework for extruding the rubber body is reserved, so that the vibration reduction and noise reduction functions can be guaranteed, the use durability is improved, and the problem that the mounting seat is separated from the rear spiral spring is solved.

Drawings

Fig. 1 is a schematic view of a rear coil spring upper seat structure of a conventional automobile.

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a front view of the metal ring frame of the present invention;

FIG. 5 is an enlarged view in partial cross-section of the present invention;

fig. 6 is a schematic diagram of the distribution of the through holes formed in the rubber body and the through holes formed in the metal ring frame.

In the figure: 10-upper seat bracket, 20-rear spiral spring upper seat, 30-rear spiral spring.

1-rubber body, 11-through hole, 12-body thickness, 13-body width, 14-rear coil spring contact portion;

2-metal ring framework, 21-via hole, 22-ring thickness. 23-ring width.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 2 to 6, the rear coil spring upper mounting seat comprises a rubber body 1 and a metal ring framework 2 arranged therein, and is characterized in that: the rubber body 1 is in a ring shape, has a body thickness 12 and a body width 13, and is provided with a rear spiral spring contact part 14 below the rubber body; the metal ring framework 2 has a ring thickness 22 and a ring width 23; the metal ring framework 2 and the rubber body 1 are integrated through vulcanization, and the distance between the metal ring framework 2 and the lower surface of the rubber body 1 is 2/3 of the thickness 12 of the rubber body. When the whole vehicle is subjected to small impact, the mounting seat on the rear spiral spring can be compressed and deformed and absorb energy so as to meet the requirements of vibration reduction and noise reduction; when the whole vehicle is subjected to large impact, the rear spiral spring has enough rigidity in the process of transmitting force to ensure durability and is not pressed out.

The ring thickness 12 of the metal ring framework 2 is equal to or more than 1mm so as to ensure the strength of the metal ring framework;

the body width 13 of the metal ring bobbin 2 is equal to or greater than the width of the rear coil spring contact portion 14. So as to avoid causing the uneven atress of the mounting seat on the back coil spring, when the mounting seat appears crooked on the coil spring after the stress compression of back coil spring, can keep certain durability and avoid deviating from.

Eight through holes 11 which are distributed equidistantly are arranged at the edge close to the rubber body 1, and eight through holes 21 which are distributed equidistantly are arranged at the central circle position of the metal circular ring framework 2; the eight through holes 11 correspond to the eight through holes 21 in a staggered mode, and included angles between the center lines of the adjacent through holes 11 and the center lines of the through holes 21 are equal and are all 22.5 degrees. So that the over-deformation and stress of the mounting seat on the rear spiral spring, which are generated by the internal vulcanized metal ring framework, can be released during compression.

The diameter of eight through-holes 11 is 3mm, eight the diameter of via hole 21 is 3mm also.

The thickness 12 of the rubber body 1 is 10mm, and the thickness 12 of the metal ring framework 2 is 1.2 mm; the body width 13 of the rubber body 1 is greater than the ring width 23 of the metal ring frame 2.

The ring width 23 of the metal ring frame 2 is 13.2 mm.

The structure and the specific size of the rubber body and the metal ring framework are comprehensively verified through vehicle evaluation and bench test: the requirements of vibration reduction and noise reduction of the whole vehicle can be met, and the requirements of durability and escape avoidance of the mounting seat on the rear spiral spring can be met.