CN-117818275-B - Interconnected molecular spring vehicle suspension

CN117818275BCN 117818275 BCN117818275 BCN 117818275BCN-117818275-B

Abstract

The invention discloses an interconnected molecular spring vehicle suspension, which consists of a plurality of hydraulic oil cavity units and an oil storage unit, wherein the hydraulic oil cavity units comprise hydraulic oil cavities, piston rods, damping modules and oil delivery pipes, the oil storage unit comprises molecular spring cavities, isolation rubber and oil storage tanks, the piston rods are connected with a vehicle frame, the oil storage tanks are isolated from the molecular spring cavities through the isolation rubber, the molecular spring cavities are filled with water and hydrophobic microporous materials, when the piston rods are compressed downwards, hydraulic oil in the hydraulic oil cavities flows into the oil storage tanks through the damping modules and the oil delivery pipes, when the piston rods are stretched, the hydraulic oil flows back to the hydraulic oil cavities under the action of the elastic force of the molecular spring cavities, the molecular spring cavities realize vibration isolation, and damping force generated when the hydraulic oil reciprocally flows through the damping modules is used for realizing dissipation of vibration energy. The structure of the molecular spring suspension can be simplified through the interconnection design, the suspension weight of the molecular spring suspension is realized, and the suspension cost is reduced.

Inventors

NIE GAOFA
CHEN ZHONGSHENG
MENG HAODONG
LI KAIQIANG
CAI JIANWEN
CAO XIA

Assignees

常州工学院

Dates

Publication Date: 20260505
Application Date: 20240118

Claims (7)

1. An interconnected molecular spring vehicle suspension is characterized in that an interconnected structure is formed by a plurality of hydraulic oil cavity units and an oil storage unit, the hydraulic oil cavity units comprise hydraulic oil cavities, piston rods, damping modules and oil delivery pipes, the oil storage units comprise molecular spring cavities, isolation rubber and oil storage tanks, bosses are arranged at the bottoms of the hydraulic oil cavities, bottom boss counter bores are arranged at the edges of the bosses, pressing plates used for adjusting damping force are arranged at the left side and the right side of each damping module, the damping modules comprise a first central through hole and normally closed damping holes positioned at the periphery of the first central through hole, the two pressing plates are used for controlling the opening size of the normally closed damping holes on the damping modules, bolts penetrating through the damping modules and the central through holes of the two pressing plates are connected with the pressing plates, the damping modules and the two pressing plates are installed in the counter bores at the bottoms of the hydraulic oil cavities in an extruding mode through damping module covers, the damping module covers are connected with the oil storage tanks through the oil delivery pipes, the edges of the damping module covers are fixedly connected with the bosses at the bottoms of the edges of the damping module covers, the damping module covers sequentially penetrate through the edges of the isolation rubber cavities, the oil cavities and the oil storage tanks are connected with the oil storage tanks through the oil storage tanks, and the oil storage tanks are connected with the oil storage tanks through the corresponding to the hydraulic oil cavities, and the piston rods extend into the piston rods through the oil storage tanks, and the oil storage tanks are connected with the hydraulic oil cavities through the corresponding to the piston rods and the piston rods respectively, when the piston rod stretches, hydraulic oil flows back to the hydraulic oil cavity under the action of the elastic force of the molecular spring cavity, when the hydraulic oil is subjected to external pressure, the molecular spring cavity generates the elastic force so as to realize vibration isolation, and the damping force generated when the hydraulic oil reciprocally flows through the damping module is used for realizing the dissipation of vibration energy.
2. The interconnected molecular spring vehicle suspension frame of claim 1, wherein a hydraulic oil cavity cover is fixedly connected to the top of the hydraulic oil cavity, a first sealing groove is further formed in the top of the hydraulic oil cavity, a first sealing ring is placed in the first sealing groove to achieve sealing between the hydraulic oil cavity and the hydraulic oil cavity cover, hydraulic oil is stored in the hydraulic oil cavity, a damping module and a mounting counter bore of a pressing sheet are formed in the bottom of the hydraulic oil cavity, and the bottom of the hydraulic oil cavity is fixedly connected with the damping module cover.
3. The interconnected molecular spring vehicle suspension of claim 2, wherein the hydraulic oil chamber cover is fixedly connected to the top of the hydraulic oil chamber, a second sealing groove is arranged on the side surface of a central through hole of the hydraulic oil chamber cover and used for placing a second sealing ring, and the second sealing ring is used for sealing between the piston rod and the hydraulic oil chamber cover.
4. The interconnected molecular spring vehicle suspension of claim 1, wherein the damping module seals the hydraulic oil chamber through a third seal ring mounted on a side of the damping module.
5. The interconnected molecular spring vehicle suspension of claim 1, wherein the damping module cover is cylindrical and is provided with an edge through hole and a second central through hole, the edge through hole is fixedly connected with the hydraulic oil cavity through a bolt, the second central through hole is in butt joint with the first central through hole of the damping module, one end face of the damping module cover is provided with a counter bore for accommodating the damping module, and the other end face of the damping module cover is provided with a boss for being connected with an oil delivery pipe.
6. The interconnected molecular spring vehicle suspension of claim 1, wherein the oil delivery pipe is used for realizing reciprocating flow of hydraulic oil between the hydraulic oil cavity and the oil storage tank, and one end of the oil delivery pipe is connected with the damping module cover, and the other end of the oil delivery pipe is connected with the oil storage tank.
7. The interconnected molecular spring vehicle suspension of claim 1, wherein the side surface of the oil storage tank is provided with a convex oil delivery port for being connected with an oil delivery pipe, and the bottom of the oil storage tank is provided with a counter bore.

Description

Interconnected molecular spring vehicle suspension Technical Field The invention relates to a molecular spring suspension structure capable of realizing mutual communication, centralization and light weight of suspensions, and belongs to the technical field of automobile suspension design. Background The semi-trailer train has the advantages of large carrying capacity, high transportation efficiency and the like, and the application proportion in the transportation industry is continuously increased in recent years. However, the semi-trailer train is easy to roll and unstably due to longer body and higher mass center, and side-turning accidents occur in serious cases. In order to prevent the semi-trailer train from rollover, the study on vehicle body roll control is particularly important, wherein, the improvement on suspension performance is the most direct and effective way for improving the vehicle roll stability. At present, most of semi-trailer trains use plate spring suspensions to absorb vibration impact, the effect is general and the self weight is large, while the air spring suspensions have limited improvement in rigidity although the self weight is reduced, and the requirements of comfort and steering stability cannot be met at the same time. In recent years, the research and application of the emerging hydraulic interconnection suspension in the field of single vehicles are widely focused, the interconnection suspension system has the characteristic of non-linearly-changed roll angle rigidity while the damping performance basically equivalent to that of an air suspension is provided, the steering stability and the safety of the vehicle can be effectively improved, and the hydraulic interconnection suspension has the advantages which are incomparable with those of the traditional plate spring and the air suspension. Therefore, the interconnected molecular spring suspension helps to further enhance the comfort and steering stability of conventional molecular spring suspensions. In addition, the interconnected molecular spring frame can further reduce the quality of the traditional molecular spring suspension, and accords with the current light-weight design trend of automobiles. Disclosure of Invention The invention aims to provide an interconnected molecular spring vehicle suspension, which realizes the improvement of vibration isolation performance of a traditional molecular spring suspension, promotes the integrated and lightweight design of the traditional molecular spring suspension, and improves the endurance mileage of an electric automobile. In order to achieve the above purpose, the present invention adopts the following technical scheme: The interconnected molecular spring vehicle suspension comprises a plurality of hydraulic oil cavity units and an oil storage unit, wherein the hydraulic oil cavity units comprise hydraulic oil cavities, piston rods, damping modules and oil delivery pipes, the oil storage unit comprises molecular spring cavities, isolation rubber and oil storage tanks, the upper ends of the piston rods are connected with a vehicle body or a vehicle frame, the lower ends of the piston rods extend into the hydraulic oil cavities, the oil storage tanks are connected with the molecular spring cavities, the oil storage tanks are isolated by the isolation rubber, the molecular spring cavities are filled with water and hydrophobic microporous materials, when the piston rods are compressed downwards, hydraulic oil in the corresponding hydraulic oil cavities flows into the oil storage tanks through the damping modules and the oil delivery pipes, when the piston rods are stretched, the hydraulic oil flows back into the hydraulic oil cavities under the action of elastic force of the molecular spring cavities, vibration isolation is realized by the elastic force generated by the molecular spring cavities when the hydraulic oil is subjected to external pressure, and the damping force generated by the reciprocating flow through the damping modules is used for realizing dissipation of vibration energy. Furthermore, the two sides of the damping module are respectively provided with the pressing sheets, the two pressing sheets are installed in the counter bore at the bottom of the hydraulic oil cavity by the damping module cover in a pressing mode, and the damping module cover is connected with the oil storage tank through the oil conveying pipe. Further, the top fixedly connected with hydraulic oil pocket lid of hydraulic oil pocket, hydraulic oil pocket top still is provided with first seal groove, place first sealing washer in the first seal groove in order to realize sealing between hydraulic oil pocket and the hydraulic oil pocket lid, the inside hydraulic oil pocket is used for storing hydraulic oil, and the hydraulic oil pocket bottom is provided with the installation counter bore of damping module and preforming, hydraulic oil pocket bottom and damping module lid fixed connection