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CN-114654992-B - Automobile suspension structure

CN114654992BCN 114654992 BCN114654992 BCN 114654992BCN-114654992-B

Abstract

The application provides an automobile suspension structure, and belongs to the technical field of automobile power assembly suspension systems. According to the technical scheme provided by the embodiment of the application, the suspension framework and the connecting bracket arm are adopted to form the inner cavity, the rubber main spring is fixed in the inner cavity, and the hydraulic module is detachably arranged in the inner cavity, so that the hydraulic module is used as a module which can be selectively arranged according to configuration; for the configuration requiring the combined action of the hydraulic module and the rubber main spring, the hydraulic module is additionally arranged, and the appearance of the suspension structure, the interface position connected with other structures and the like are unchanged no matter whether the hydraulic module is additionally arranged or not, so that the cost of re-opening the die is saved, and the cost increase caused by different vehicle type configurations is avoided.

Inventors

  • ZHOU ZHIQIANG
  • SHI JIANWEI
  • CHEN SONGHE
  • WANG YONG

Assignees

  • 奇瑞汽车股份有限公司

Dates

Publication Date
20260505
Application Date
20220307

Claims (7)

  1. 1. The automobile suspension structure is characterized by comprising a suspension framework (1), a connecting bracket arm (2), a rubber main spring (3), a main spring base (4) and a hydraulic module (5); the suspension framework (1) is provided with an inner groove and a mounting groove matched with the main spring base (4), the connecting bracket arm (2) is inserted into the inner groove, the main spring base (4) is inserted into and clamped in the mounting groove, the suspension framework (1) is used for connecting the auxiliary frame, and the connecting bracket arm (2) is used for connecting the power assembly; An inner cavity is formed between the suspension framework (1) and the connecting bracket arm (2), the rubber main spring (3) and the main spring base (4) are both positioned in the inner cavity, the bottom of the rubber main spring (3) is matched with the top of the main spring base (4), the rubber main spring (3) is in adhesive connection with the inner wall of the connecting bracket arm (2), and the bottom of the rubber main spring (3) is in adhesive connection with the top of the main spring base (4); The hydraulic module (5) comprises an assembly framework (51), a rubber cup (52), an upper runner cover plate (53), a decoupling film (54) and a lower runner cover plate (55), wherein the assembly framework (51) is barrel-shaped, a liquid inlet hole (59) is formed in the assembly framework (51) of the hydraulic module (5), the liquid inlet hole (59) faces to the top of the assembly framework (51), the liquid inlet hole (59) is communicated with an upper liquid cavity (56), a steel ball cover body (510) is further arranged on the liquid inlet hole (59), the rubber cup (52), the upper runner cover plate (53), the decoupling film (54) and the lower runner cover plate (55) are sequentially arranged in the assembly framework (51) from top to bottom, an upper liquid cavity (56) is formed between the rubber cup (52) and the upper runner cover plate (53), and at least one corresponding through hole is formed in the bottoms of the upper runner cover plate (53), the lower runner cover plate (55) and the assembly framework (51); The connecting bracket arm (2) is internally provided with a containing cavity (21) matched with the hydraulic module (5), an annular protruding part (511) is arranged on the outer wall of an assembly framework (51) of the hydraulic module (5), and the hydraulic module (5) can be fixed in the containing cavity (21) through an interference fit process based on deformation of the protruding part (511); A lower liquid cavity (57) is formed between the bottom surface of the hydraulic module (5) and the rubber main spring (3); Damping fluid is filled in the upper fluid cavity (56) and the lower fluid cavity (57); the decoupling film (54) is made of rubber and is used for buffering the flow of damping fluid at two sides.
  2. 2. The vehicle suspension according to claim 1, characterized in that the suspension frame (1) is provided with an adjustment sleeve (11) for connecting the subframe.
  3. 3. The vehicle suspension according to claim 1, characterized in that the connecting bracket (2) is provided with a weight-reducing groove therein.
  4. 4. The vehicle suspension according to claim 1, characterized in that the bottom surface of the hydraulic module (5) is provided with an eccentric positioning projection (58), and the receiving cavity (21) of the connecting bracket arm (2) is provided with a corresponding positioning hole.
  5. 5. The automobile suspension structure according to claim 1, wherein the rubber main spring (3) is respectively attached to the inner wall of the connecting bracket arm (2) and the main spring base (4) by a vulcanization process.
  6. 6. The vehicle suspension according to claim 1, characterized in that the top of the rubber main spring (3) is a concave bowl-shaped groove for forming the liquid-down chamber (57) with the bottom surface of the hydraulic module (5).
  7. 7. The vehicle suspension structure according to claim 1, wherein the material of the assembly skeleton (51) connecting the bracket arm (2) and the hydraulic module (5) is aluminum.

Description

Automobile suspension structure Technical Field The application relates to the technical field of automobile power assembly suspension systems, in particular to an automobile suspension structure. Background The automobile power assembly suspension system is an elastic connection system formed by connecting elements between an electric automobile power assembly and an automobile body or a frame, the power assembly is a power source of the electric automobile, the electric automobile is driven to run by power output power of the power assembly, and the automobile power assembly suspension system is arranged on the automobile body or the frame in a suspension manner so as to ensure the position and the posture of the power assembly and is used for supporting the power assembly and isolating vibration energy of the power assembly from being transmitted to the automobile body and road surface excitation from being transmitted to the power assembly. With the development of the automobile industry, the development of the platform is more and more popular, but the design redundancy is increased for part of parts, the same automobile model is often designed with various configurations, the suspension structures in different configurations are also different, different suspension structures need to be separately molded, other structures matched with the suspension structures may also need to be deformed to some extent, and the cost of part of the automobile model is increased. Disclosure of Invention The embodiment of the application provides an automobile suspension structure, which can freely select whether a hydraulic module is additionally arranged according to the configuration of a vehicle based on the rubber suspension structure, and the appearance of the suspension structure and the interface position connected with other structures are not changed, so that the cost of re-opening the mould is saved, and the cost increase caused by different vehicle type configurations is avoided. The technical scheme is as follows: the automobile suspension structure comprises a suspension framework, a connecting bracket arm, a rubber main spring, a main spring base and a hydraulic module; The suspension framework is provided with an inner groove, the connecting bracket is inserted into the inner groove, the suspension framework is used for connecting the auxiliary frame, and the connecting bracket is used for connecting the power assembly; an inner cavity is formed between the suspension framework and the connecting bracket arm, the rubber main spring and the main spring base are both positioned in the inner cavity, and the rubber main spring is respectively stuck and connected with the inner wall of the connecting bracket arm and the main spring base; The hydraulic module is detachably arranged on the upper side of the rubber main spring in the inner cavity; The hydraulic module comprises an assembly framework, a rubber cup, an upper runner cover plate, a decoupling film and a lower runner cover plate, wherein the assembly framework is barrel-shaped, the rubber cup, the upper runner cover plate, the decoupling film and the lower runner cover plate are sequentially arranged in the assembly framework from top to bottom, an upper liquid cavity is formed between the rubber cup and the upper runner cover plate, and at least one corresponding through hole is formed at the bottoms of the rubber cup, the upper runner cover plate, the lower runner cover plate and the assembly framework; a liquid discharging cavity is formed between the bottom surface of the hydraulic module and the rubber main spring; damping fluid is filled in the upper fluid cavity and the lower fluid cavity; the decoupling film is made of rubber and is used for buffering the flowing of damping fluid at two sides. In one possible design, an adjustment sleeve is provided on the suspension frame for connecting the subframe. In one possible design, the connecting bracket has a weight-reducing slot provided therein. In one possible embodiment, the connecting bracket has a receiving space in the connecting bracket, which is adapted to the hydraulic module, in which the hydraulic module can be fixed by means of a snap-fit process. In one possible design, the bottom surface of the hydraulic module is provided with eccentric positioning projections, and the receiving cavity of the connecting bracket is provided with corresponding positioning holes. In one possible design, the rubber main spring is respectively stuck and connected with the inner wall of the connecting bracket arm and the main spring base through a vulcanization process. In one possible design, the top of the rubber main spring is a concave bowl-shaped groove for forming the liquid-discharging cavity with the bottom surface of the hydraulic module. In one possible design, a liquid inlet hole is arranged in the assembly framework of the hydraulic module, the liquid inlet hole is communicated with the upper