CN110789284A - A cast aluminum bracket front shock absorber upper support structure - Google Patents

Abstract

The invention relates to an upper support structure of a front shock absorber of a cast aluminum bracket, comprising a main bracket, an upper baffle and a rubber main spring. The main bracket comprises a fixing cylinder and an installation part integrally arranged around the fixing cylinder; the installation part There are several bolts on it; the interior of the fixing cylinder is provided with a baffle, the baffle divides the fixing cylinder into a first cavity and a second cavity, and a through hole is arranged in the middle of the baffle, and the through hole passes through the through hole. Connect the first and second cavities up and down, the first cavity is provided with a rubber main spring, the rubber main spring is composed of an outer bushing, a rubber body and an inner skeleton assembly, and the upper baffle is riveted and arranged on the Fixing the upper end of the cylinder; by designing an integrated main bracket, the present invention has good structural strength, and does not require a separate design of a traditional buffer block backing plate, the structure is more compact, and the production efficiency and installation efficiency are also improved.

Description

A cast aluminum bracket front shock absorber upper support structure

technical field

The invention belongs to the field of vehicle suspension, in particular to the field of the upper support structure of the front shock absorber of a cast aluminum bracket.

Background technique

The upper support of the shock absorber is an indispensable and most important part in the automobile suspension system. Its main function is to bear the vertical load transmitted from the suspension to the body, and bear the handling and impact load; at the same time, the rotation of the bearing ensures the function of the vehicle steering. ; In addition, in order to ensure the accuracy of steering and ensure that the shock absorber piston rod has the ability to yaw; the most important point is to provide shock isolation for the passenger compartment; to ensure that the shock absorber assembly does not generate noise during use; To meet the requirements of lightweight and low cost, while ensuring the performance and strength of the suspension system, further improvements are required.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention achieves the above objects through the following technical solutions:

An upper support structure for a front shock absorber of a cast aluminum bracket, comprising a main bracket, an upper baffle, and a rubber main spring, the main bracket includes a fixing cylinder and an installation part integrally arranged around the fixing cylinder, the installation part is provided with Several bolts; the interior of the fixing cylinder is provided with a baffle, the baffle divides the fixing cylinder into a first cavity and a second cavity, a through hole is arranged in the middle of the baffle, and the first cavity is separated through the through hole. , The second cavity is connected up and down, the first cavity is provided with a rubber main spring, the rubber main spring is composed of an outer bushing, a rubber body and an inner skeleton assembly, and the upper baffle is riveted to the fixed cylinder. upper end.

As a further optimized solution of the present invention, the inner skeleton assembly is formed by injection molding of an inner bushing and a nylon body; the outer skeleton is injection molded with a nylon body, which reduces weight and cost, and meets strength requirements.

As a further optimized solution of the present invention, the number of the bolts is 3, and the bolts are press-fitted and connected to the mounting portion; the press-fit connection solves the process, cost and anti-corrosion problems in the high-pressure casting of the main bracket together with the bolts or nuts.

As a further optimized solution of the present invention, the inner side wall of the second cavity is provided with a raised portion; the bumper block on the top of the shock absorber can be fastened by the raised portion to prevent the bumper block on the shock absorber from falling off.

As a further optimized solution of the present invention, the outer bushing is a resin part, which can meet the requirements of reducing cost and reducing weight.

The beneficial effects of the present invention are:

1) In the present invention, one end of the main bracket can limit the rubber body through the upper baffle plate, without adding a limit plate separately, and the other end is designed with a baffle plate in the fixed cylinder, and the fixed cylinder is divided into two upper and lower parts. In the cavity, the rubber main spring is placed in the upper cavity, and the buffer block of the shock absorber is placed in the lower cavity. The whole structure is integrally formed with good structural strength;

2) In addition, the structure does not need to design a traditional buffer block backing plate separately, the structure is more compact, and it is also convenient to improve production efficiency and installation efficiency.

Description of drawings

Fig. 1 is the structural principle sectional schematic diagram of the present invention;

Fig. 2 is the structural representation of the main support of the present invention;

Fig. 3 is the structural representation of the rubber main spring of the present invention;

Fig. 4 is the three-dimensional structure schematic diagram of the present invention;

In the figure: 1. Main bracket; 11. Fixed cylinder; 12. Mounting part; 13. Partition plate; 14. First cavity; 15. Second cavity; 151. Protrusion; 16. Through hole; 2. 4. Bolt; 5. Rubber main spring; 51. Outer bushing; 52. Rubber body; 53. Inner frame assembly; 531. Inner bushing; 532, Nylon body.

Detailed ways

The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and should not be construed as limiting the protection scope of the application. Those skilled in the art can The above application content makes some non-essential improvements and adjustments to this application.

As shown in Figures 1 to 4, a cast aluminum bracket front shock absorber upper support structure includes a main bracket 1, an upper baffle 2, and a rubber main spring 5.

The main bracket 1 is a cast aluminum part, including a fixing cylinder 11 and a mounting part 12 integrally arranged around the fixing cylinder 11. Three bolts 4 are arranged on the mounting part 12, and the bolts 4 and the mounting part 12 are press-fitted. The process press-fit connection solves the process, cost and anti-corrosion problems in the high-pressure casting of the main bracket and the bolt or nut;

The main bracket is connected to the body through the mounting part, and through the high-pressure casting process and aging treatment, it can improve production efficiency, reduce costs, reduce weight, meet the strength and can reach a certain required elongation, and meet product assembly and riveting process requirements. ;

The interior of the fixing cylinder 11 is integrally provided with a partition 13, which divides the fixing cylinder 11 into a first cavity 14 and a second cavity 15. A through hole 16 is formed in the middle of the partition 13, and passes through The through hole 16 connects the first and second cavities 14 and 15 up and down;

The first cavity 14 is provided with a rubber main spring 5 . The rubber main spring 5 is composed of an outer bushing 51 , a rubber body 52 and an inner skeleton assembly 53 . The upper end; the outer bushing 51 is a resin part;

In order to meet the NVH performance, the inner frame assembly 53 is injection-molded from the inner bushing 531 and the nylon body 532, and this structure is easy to design, low in cost, and easy to adjust product performance;

The inner side wall of the second cavity 15 is provided with a raised portion 151, and the second cavity is used for arranging a buffer block;

The assembling relationship of the present invention is as follows: firstly, the outer bushing, the inner skeleton assembly and the rubber body are vulcanized into a rubber main spring, and then the rubber main spring is put into the first cavity in the fixing cylinder of the main bracket, and is connected with the inner lining of the fixing cylinder. Interference fit, then put the upper baffle into the upper end of the main bracket, and make a clearance fit; the main bracket, the rubber main spring, and the upper baffle are riveted together by riveting equipment; finally, the bolt or nut is connected with the main bracket The mounting part is assembled into a front and upper support assembly by press-fitting.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention.

Claims (5)

1. An upper support structure for a front shock absorber of a cast aluminum bracket, characterized in that it comprises a main bracket (1) and an upper baffle (2), and the main bracket (1) comprises a fixing cylinder (11), which is integrally provided on the The mounting portion (12) around the fixing cylinder (11) is provided with several bolts (4); the interior of the fixing cylinder (11) is integrally provided with a partition (13). The partition plate (13) divides the fixing cylinder (11) into a first cavity (14) and a second cavity (15), the partition plate (13) is provided with a through hole (16) in the middle, and the through hole (16) passes through the through hole (16). ) connects the first and second cavities (14, 15) up and down, the first cavity (14) is provided with a rubber main spring (5), the rubber main spring (5) is formed by an outer bushing (51) ), a rubber body (52) and an inner frame assembly (53), the upper baffle (2) is riveted and arranged on the upper end of the fixing cylinder (11). 2 . The upper support structure of the front shock absorber of a cast aluminum bracket according to claim 1 , wherein the inner frame assembly ( 53 ) is formed by injection molding of an inner bushing ( 531 ) and a nylon body ( 532 ). 3 . . 3 . The upper support structure of the front shock absorber of a cast aluminum bracket according to claim 1 , wherein the number of the bolts ( 4 ) is 3, and the bolts ( 4 ) are press-fitted with the mounting portion ( 12 ). 4 . connect. 4 . The upper support structure of the front shock absorber of a cast aluminum bracket according to claim 1 , wherein a raised portion ( 151 ) is provided on the inner side wall of the second cavity ( 15 ). 5 . 5 . The upper support structure of the front shock absorber of a cast aluminum bracket according to claim 1 , wherein the outer bushing ( 51 ) is a resin part. 6 .

Images