Hydraulic assembly of shock absorber upper support, shock absorber upper support and mounting structure of shock absorber upper support

Abstract

The invention discloses a hydraulic assembly of a hydraulic shock absorber upper support, the shock absorber upper support and a mounting structure of the shock absorber upper support. The hydraulic assembly comprises an inner framework, an upper liquid chamber and a lower liquid chamber, wherein the upper liquid chamber and the lower liquid chamber are coaxially arranged on the upper side and the lower side of the middle of the inner framework; a liquid inlet flow channel communicated with the upper liquid chamber and provided with a blocked liquid inlet and a connecting flow channel communicated with the upper liquid chamber and the lower liquid chamber are formed in the inner framework, the liquid inlet flow channel, the upper liquid chamber, the connecting flow channel and the lower liquid chamber form a closed space capable of generating elastic deformation, and the closed space is filled with damping liquid. According to the designed hydraulic assembly of the upper support of the shock absorber, through the unique structural design and the effect of the damping fluid, the performance and reliability of the upper support of the shock absorber can be effectively improved, the hydraulic assembly is good in damping performance and has the advantages of being not prone to aging, high in strength and good in wear resistance, and hydraulic shock absorption based on the damping fluid is not sensitive to temperature and not prone to damage. The shock absorber upper support designed based on the hydraulic assembly and the mounting structure of the shock absorber upper support provide more comfortable and stable driving experience for the vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle body parts, and in particular to a hydraulic assembly of a hydraulic shock absorber upper support, a shock absorber upper support and a mounting structure thereof. Background Art

[0002] At present, the structure of the upper support of the shock absorber includes an inner frame, a rubber main spring wrapped around the edge of the inner frame, and an outer frame fixed to the outer surface of the rubber main spring. The inner frame, the rubber main spring and the outer frame are vulcanized as a whole. This traditional upper support structure of the shock absorber is simple and low in cost, and can provide a certain rigidity and damping requirements required by the shock absorber.

[0003] However, the existing upper support of the shock absorber has the following disadvantages:

[0004] 1. Limited damping performance: The damping coefficient of the rubber main spring is low, usually only 0.1 to 0.2, and the damping effect provided is very limited. This means that during the vibration reduction process, the vibration attenuation ability is relatively weak, and the vibration energy cannot be eliminated quickly and effectively, which may cause the vehicle to feel more residual vibration and bumps during driving, affecting driving comfort and stability.

[0005] 2. Easy to age: Rubber materials are easily affected by environmental factors and age. For example, long-term exposure to the air will cause erosion by oxygen and ozone. High temperatures will accelerate the aging process, and cold climates may make them brittle. In addition, the heat generated during vehicle driving, salt on the road, chemicals, etc. will also damage the rubber main spring, causing its performance to gradually decline and shortening its service life.

[0006] 3. Insufficient strength and wear resistance: The strength of the rubber main spring is relatively low. When subjected to high pressure and friction for a long time, it is easy to wear, deform or even break. Especially in some bad road conditions, such as roads with many potholes or frequent driving behaviors such as sudden acceleration and sudden braking, it will cause greater pressure on the rubber main spring, causing it to wear faster and affecting the normal operation of the upper support of the shock absorber.

[0007] 4. Sensitive to temperature: The performance of the rubber main spring will change greatly with the change of temperature. In a high temperature environment, the elastic modulus of the rubber main spring will decrease, resulting in a decrease in its stiffness and inability to provide sufficient support, thus affecting the vibration reduction effect; in a low temperature environment, the rubber main spring will become hard and its elasticity will deteriorate, which will weaken the buffering effect of the support on the shock absorber and increase the vibration and impact of the vehicle when driving.

[0008] 5. Impact on handling performance: The elasticity of the rubber main spring is relatively large, which may cause the suspension system to respond more slowly during vehicle driving, affecting the vehicle's handling performance. For example, when driving at high speed, the steering and braking response of the vehicle may not be sensitive enough, reducing driving safety and control accuracy. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and to provide a hydraulic assembly, a shock absorber upper support and its mounting structure for a hydraulic shock absorber upper support which has good damping performance, is not easy to age, has good strength and wear resistance, is insensitive to temperature, has excellent handling performance, can effectively attenuate the vibration transmitted from the tire to the vehicle body and improve driving comfort.

[0010] To achieve this purpose, the hydraulic assembly supported on the shock absorber designed in the present invention includes an inner skeleton and an upper liquid chamber and a lower liquid chamber coaxially arranged on the upper and lower sides of the middle part of the inner skeleton; the inner skeleton is provided with a liquid inlet channel connected to the upper liquid chamber and with a blocked liquid inlet, and a connecting channel connected to the upper liquid chamber and the lower liquid chamber; the liquid inlet channel, the upper liquid chamber, the connecting channel and the lower liquid chamber form a closed space that can undergo elastic deformation, and the closed space is filled with damping fluid.

[0011] In the structure of the above hydraulic assembly, the inner frame serves as the core supporting structure of the entire hydraulic assembly, providing a foundation for the installation and fixing of other components. It is usually made of high-strength metal materials and has sufficient strength and rigidity to withstand various stresses generated during vehicle driving. The design of the inner frame needs to take into account the matching accuracy with other components and the convenience of installation to ensure the stability and reliability of the entire hydraulic assembly. The upper liquid chamber and the lower liquid chamber are located on the upper and lower sides of the middle of the inner frame, respectively, and are coaxially arranged. They are the main spaces for storing damping fluid in the hydraulic assembly and are interconnected through connecting flow channels. The shape and size of the liquid chamber will affect the flow characteristics and vibration reduction effect of the damping fluid. Generally speaking, a larger liquid chamber can store more damping fluid and provide stronger vibration reduction capabilities, but it will also increase the volume and weight of the entire hydraulic assembly. The wall of the liquid chamber is usually made of corrosion-resistant, high-strength materials to ensure that the damping fluid will not leak or be contaminated during long-term use. The liquid inlet flow channel is opened in the inner frame and communicates with the upper liquid chamber, and its liquid inlet is blocked. The function of the inlet channel is to inject the damping fluid into the upper chamber during the assembly of the hydraulic assembly. Once the injection is completed, the inlet port is blocked to prevent the damping fluid from leaking. The connecting channel is also provided in the inner frame, which connects the upper chamber and the lower chamber, allowing the damping fluid to flow between the two chambers. The design of the connecting channel needs to take into account the flow and pressure requirements of the damping fluid to ensure that the hydraulic assembly can work properly. The size, shape and layout of the inlet channel and the connecting channel will affect the flow rate and resistance of the damping fluid, thereby affecting the performance of the shock absorber upper support. The inlet channel, the upper chamber, the connecting channel and the lower chamber together form a closed space that can undergo elastic deformation. The sealing of this closed space is crucial, which ensures that the damping fluid will not leak during operation, thereby ensuring the stability and reliability of the shock absorber upper support. The elastic deformation characteristics of the closed space are determined by the material properties of the inner frame, the chamber wall and the connecting channel. During vehicle driving, when the upper support of the shock absorber is subjected to vibration and impact from the road surface, the enclosed space will deform accordingly, so that the damping fluid flows between the liquid chambers, generating damping force and playing a role in vibration reduction. The damping fluid is the core working medium of the hydraulic assembly. It is filled in the enclosed space and consumes vibration and impact energy through flow and deformation. The performance of the damping fluid directly affects the vibration reduction effect and performance stability of the upper support of the shock absorber. The damping fluid usually has a high viscosity and good fluidity, and can flow quickly between the liquid chambers to generate sufficient damping force. At the same time, the damping fluid also needs to have good chemical stability and high and low temperature resistance to ensure that it can work normally in various harsh working environments. Different types of damping fluids have different performance characteristics, and can be selected according to the specific needs of the vehicle and the use environment. For example, some high-performance damping fluids can provide stronger vibration reduction capabilities and better handling performance, but the price is also relatively high.

[0012] Furthermore, the inner skeleton includes an inner skeleton main axis and an inner skeleton ring coaxially fixedly connected to the circumferential surface of the middle part of the inner skeleton main axis; the inner skeleton main axis coaxially passes through the upper liquid chamber and the lower liquid chamber, the upper liquid chamber is located above the inner skeleton ring, and the lower liquid chamber is located below the inner skeleton ring.

[0013] The above-mentioned endoskeleton main shaft is the core part of the entire endoskeleton, and it plays the main supporting and connecting role. It is usually made of high-strength metal materials and has sufficient strength and rigidity to withstand various forces and pressures from the vehicle during driving. The shape of the endoskeleton main shaft is generally cylindrical, and its diameter and length are determined according to the specific design requirements of the upper support of the shock absorber. Its surface is usually precision-machined to ensure the matching accuracy and installation stability with other components. The endoskeleton main shaft coaxially passes through the upper liquid chamber and the lower liquid chamber, providing a basis for the positioning and fixation of the liquid chamber. At the same time, it also provides space for the opening of the connecting flow channel, so that the damping fluid can flow smoothly between the liquid chambers. The endoskeleton ring is coaxially fixedly connected to the middle circumferential surface of the endoskeleton main shaft, and it and the endoskeleton main shaft together constitute the main structure of the endoskeleton. The main function of the endoskeleton ring is to separate the upper liquid chamber and the lower liquid chamber, and at the same time provide support for the sealing and fixation of the liquid chamber. The diameter of the endoskeleton ring usually matches the diameter of the endoskeleton main shaft to ensure that the connection between the two is firm and reliable. Its thickness and width are determined according to the design requirements of the liquid chamber, which must ensure sufficient strength and rigidity while minimizing the volume and weight of the entire hydraulic assembly. The material of the inner frame ring is generally the same as that of the inner frame main shaft, both of which are high-strength metal materials. During the manufacturing process, the inner frame ring is usually fixed to the inner frame main shaft by welding, threading or other reliable connection methods to ensure that it will not loosen or fall off during vehicle driving. The upper liquid chamber is located above the inner frame ring and is an important part of the hydraulic assembly for storing damping fluid.

[0014] Furthermore, the circumferential edge of the inner skeleton ring is wrapped and connected to a main spring that can undergo elastic deformation, and an upper leather bag and a lower leather bag that can undergo elastic deformation are respectively fixed on the upper and lower sides of the main spring. The upper leather bag, the upper surface of the main spring and the middle upper surface of the inner skeleton form the upper liquid chamber, and the lower leather bag, the lower surface of the main spring and the middle lower surface of the inner skeleton form the lower liquid chamber.

[0015] The circumferential edge of the inner skeleton ring is wrapped and connected to the main spring that can undergo elastic deformation. This connection method allows the main spring to fit tightly on the inner skeleton ring to ensure that there is no relative displacement between the two during operation. The wrapping connection can be achieved in a variety of ways, such as by vulcanization, bonding or mechanical fixing. These connection methods need to ensure that there is sufficient connection strength and sealing between the main spring and the inner skeleton ring to prevent leakage of the damping fluid. The main spring is usually made of materials with good elasticity and wear resistance, such as rubber, polyurethane, etc. Its elastic deformation characteristics can play a role in buffering and absorbing energy when the upper support of the shock absorber is subjected to vibration and impact. The upper and lower bladders can both undergo elastic deformation, and they are located on the upper and lower sides of the main spring respectively. During operation, the bladder can undergo corresponding deformation as the main spring deforms, thereby maintaining the sealing of the upper and lower liquid chambers. The material of the bladder is usually selected from rubber or other synthetic materials with good elasticity, corrosion resistance and wear resistance. These materials can maintain stable performance during long-term use to ensure the reliability of the hydraulic assembly. The upper bladder, the upper surface of the main spring and the upper surface of the middle part of the inner frame form an upper liquid chamber, and the lower bladder, the lower surface of the main spring and the lower surface of the middle part of the inner frame form a lower liquid chamber. This structural design makes the liquid chamber have good sealing performance and can effectively store damping fluid. The connection between the bladder, the main spring and the inner frame needs to ensure a tight fit to prevent leakage of the damping fluid. At the same time, the elastic deformation characteristics of the bladder can play a role in buffering and regulating pressure when the pressure inside the liquid chamber changes. When the upper support of the shock absorber is subjected to vibration and impact, the main spring, the upper bladder and the lower bladder will undergo elastic deformation, thereby changing the volume and internal pressure of the liquid chamber. This elastic deformation adjustment enables the damping fluid to flow between the liquid chambers and generate appropriate damping force to adapt to different vibration and impact conditions. The elastic deformation adjustment characteristics of the liquid chamber need to match the overall performance requirements of the shock absorber upper support to ensure that good vibration reduction effects can be provided under various working conditions.

[0016] Furthermore, the liquid inlet channel is provided in the main shaft of the inner skeleton, and the connecting channel is provided in the circular ring of the inner skeleton.

[0017] The above-mentioned inlet flow channel is opened in the inner skeleton main shaft. This design makes full use of the internal space of the inner skeleton main shaft, making the structure of the entire hydraulic assembly more compact. The location selection of the inlet flow channel needs to take into account the convenience of connection with the upper liquid chamber and the feasibility of operation during the assembly process. Usually, the inlet flow channel is connected to the upper liquid chamber in the most direct way possible to ensure that the damping fluid can be smoothly injected. The size and shape of the inlet flow channel need to be reasonably designed according to the flow rate and injection speed of the damping fluid. Generally speaking, a larger inlet flow channel can speed up the injection speed, but it may also increase the volume and weight of the hydraulic assembly. The connecting flow channel is opened in the inner skeleton ring. This design enables the connecting flow channel to be closely connected with the upper liquid chamber and the lower liquid chamber, so that the damping fluid can flow smoothly between the two liquid chambers. The inner skeleton ring is a structure that separates the upper liquid chamber and the lower liquid chamber. The connecting flow channel opened inside it can effectively reduce the length and resistance of the flow channel and improve the flow efficiency of the damping fluid. The connecting flow channel connects the upper liquid chamber and the lower liquid chamber, so that the damping fluid can flow between the two liquid chambers, generate damping force, and play a role in vibration reduction. The size, shape and layout of the connecting flow channel will affect the flow and pressure distribution of the damping fluid, thereby affecting the performance of the upper support of the shock absorber. Reasonable design of the connecting flow channel can ensure that the damping fluid flows smoothly and evenly between the liquid chambers, thereby improving the vibration reduction effect.

[0018] Furthermore, the connecting flow channel includes an arc-shaped flow channel arranged concentrically with the inner skeleton ring.

[0019] The above-mentioned connecting flow channel is arranged concentrically with the inner skeleton ring, and this design has many advantages. First, the concentric arrangement makes the flow channel more regular in space, which is conducive to improving the structural compactness and stability of the hydraulic assembly. Secondly, the concentric arrangement can ensure that the connection between the flow channel and the upper liquid chamber and the lower liquid chamber is more uniform, so that the flow of the damping fluid between the liquid chambers is smoother. The concentric arrangement is also convenient for processing and assembly during the manufacturing process, reducing the difficulty and cost of production. At the same time, this layout is also conducive to improving the sealing performance of the hydraulic assembly and reducing the risk of leakage of the damping fluid. The use of the arc-shaped flow channel design can, on the one hand, increase the length of the flow channel, thereby increasing the flow resistance of the damping fluid in the flow channel to a certain extent and improving the vibration reduction effect. On the other hand, the arc-shaped flow channel can make the flow of the damping fluid smoother and reduce the pressure loss and energy loss in the flow channel. The radius of curvature of the arc-shaped flow channel needs to be reasonably selected according to the specific design requirements. A larger radius of curvature can reduce the local resistance in the flow channel, but may increase the volume and weight of the hydraulic assembly; a smaller radius of curvature can improve the compactness of the flow channel, but may cause poor flow of the damping fluid and increased pressure loss. The arc-shaped flow channel and concentric arrangement can make the flow of the damping fluid between the liquid chambers more complicated, increasing the mechanism for generating the damping force. This complex flow can better consume vibration and impact energy and improve the damping performance of the upper support of the shock absorber. At the same time, by adjusting the size and shape of the connecting flow channel, the size and characteristics of the damping force can be adjusted to meet the needs of different vehicles and driving conditions. A reasonably designed connecting flow channel can improve the response speed of the hydraulic assembly. The arc-shaped flow channel can make the damping fluid flow faster in the flow channel, so that the upper support of the shock absorber can respond to vibration and impact faster. The concentric arrangement can ensure a tighter connection between the flow channel and the liquid chamber, reducing the delay of the damping fluid during the flow process. A faster response speed can improve the driving stability and comfort of the vehicle, especially under high-speed driving and complex road conditions, and can better protect the vehicle and passengers. Concentric arrangement and arc-shaped flow channels can make the flow channel's force more uniform, reducing the risk of fatigue damage and rupture during long-term use. In addition, reasonable flow channel design can also reduce the pressure peak and local stress concentration in the flow channel, improving the overall reliability and durability of the hydraulic assembly.

[0020] Furthermore, the upper skin bladder and the lower skin bladder each include a ring-shaped skin bladder outer skin with a through hole in the middle corresponding to the main axis of the inner skeleton, and a skin bladder inner skin arranged inside the skin bladder outer skin along the circumferential direction of the skin bladder outer skin, the circumferential edge of the skin bladder outer skin is clamped in the main spring, and the middle part of the skin bladder outer skin is fixed on the main axis of the inner skeleton.

[0021] The upper and lower bladders mentioned above both have an annular bladder skin with a through hole in the middle corresponding to the main axis of the inner skeleton. The function of this through hole is to allow the main axis of the inner skeleton to pass through the bladder, ensuring that the bladder can be correctly installed in the hydraulic assembly. The bladder skin is usually made of a material with good elasticity and wear resistance, such as rubber. Its annular shape can cooperate with the main spring and the inner skeleton to form a sealed liquid chamber space. The thickness and material of the bladder skin need to be selected according to specific use requirements to ensure that it can withstand the pressure in the liquid chamber and the external force, and has sufficient elasticity to adapt to the working deformation of the hydraulic assembly. The bladder lining is arranged inside the bladder skin along the circumferential direction of the bladder skin, which plays a role in enhancing the strength and stability of the bladder. The bladder lining can be made of different materials and structural forms, such as fiber-reinforced materials, metal mesh, etc. The function of the bladder lining is to prevent the bladder skin from excessive deformation or rupture during the working process of the bladder, thereby improving the service life and reliability of the bladder. At the same time, it can also help maintain the shape of the bladder and ensure the sealing of the liquid chamber. The circumferential edge of the outer skin of the bladder is snap-fitted into the main spring. This snap-fit ​​connection method can ensure that the connection between the bladder and the main spring is firm and reliable, and prevent separation or leakage during operation. The snap-fit ​​connection usually requires the design of a suitable snap-fit ​​structure, such as a groove, a flange, etc., to ensure that the bladder can be tightly snapped into the main spring. The middle part of the outer skin of the bladder is fixed to the main shaft of the inner skeleton. This fixed connection method can ensure that the bladder will not be displaced relative to the main shaft of the inner skeleton during operation, ensuring the sealing and stability of the liquid chamber. Fixed connection can be achieved in a variety of ways, such as bolting, welding, bonding, etc. The specific connection method needs to be selected according to the material and structural characteristics of the bladder and the main shaft of the inner skeleton to ensure the strength and reliability of the connection.

[0022] Furthermore, a ring-shaped outer frame is fixedly connected to the circumferential edge of the main spring, and the outer frame can be clamped and fixed to the main spring, the upper skin bag and the lower skin bag by radial clamping.

[0023] The above-mentioned exoskeleton is an annular structure that matches the shape of the main spring. It is usually made of high-strength metal materials and has sufficient rigidity and strength to withstand the clamping force from the outside and the pressure from the inside. Its size and shape need to be designed according to the specifications of the main spring, the upper skin bag and the lower skin bag to ensure that it can tightly wrap the circumferential edge of the main spring and form a good match with them. The exoskeleton clamps the main spring with the upper skin bag and the lower skin bag by radial clamping. This fixing method can ensure that the main spring will not be displaced or loosened during operation, and maintain the structural stability of the hydraulic assembly. The existence of the exoskeleton enhances the structural strength of the entire shock absorber upper support and improves its impact resistance and deformation resistance. The radial clamping method is relatively simple and easy to operate. During the installation process, it is only necessary to apply radial pressure to the external skeleton through a specific clamping tool or device to achieve the clamping fixation of the main spring and the skin bag. This installation method does not require complex mechanical connection or welding process, saving installation time and cost. The radial clamping force can be adjusted according to actual needs. By adjusting the pressure of the clamping tool or using clamping devices of different specifications, the clamping force can be controlled to adapt to main springs and bladders of different sizes and performance requirements. This adjustability makes the design of the shock absorber upper support more flexible and can meet the needs of different vehicles and driving conditions. The radial clamping method can provide uniform clamping force, making the clamping between the main spring and the bladder more firm and reliable. During the working process, this clamping method can effectively prevent the main spring and the bladder from loosening or separating, ensuring the sealing and stability of the hydraulic assembly. At the same time, it can also withstand certain vibrations and shocks, improving the reliability and durability of the shock absorber upper support. The clamping and fixing of the main spring with the upper and lower bladders ensures the sealing of the liquid chamber, allowing the damping fluid to flow normally in the liquid chamber and generate effective damping force. The radial clamping method of the exoskeleton helps to maintain this sealing performance, thereby improving the vibration reduction effect of the shock absorber and reducing vibration and bumps during vehicle driving. The stable hydraulic assembly structure helps to improve the handling stability of the vehicle. The fixing effect of the exoskeleton can reduce the deformation and displacement of the main spring and the bladder, ensuring that the shock absorber can provide consistent performance under different driving conditions. This is essential for improving the steering accuracy, braking performance and driving stability of the vehicle. The reliable clamping fixing method and the solid exoskeleton structure can extend the service life of the shock absorber upper support. They can withstand long-term working pressure and external environmental influences, reduce the frequency of repairs and replacements caused by loose or damaged components, and reduce the cost of use.

[0024] Furthermore, the upper and lower surfaces of the main spring are provided with a plurality of bosses of different heights at intervals along the circumferential direction thereof.

[0025] The upper and lower surfaces of the main spring are provided with bosses, which are spaced apart along the circumferential direction. This layout enables the bosses to provide support and buffering at different positions of the main spring. The spacing of the bosses can be reasonably designed according to the size and working requirements of the main spring to ensure that they can play an effective role in different parts. The different heights of the bosses are an important feature. This design enables the bosses of different heights to bear the load in turn when the main spring is under pressure, thereby achieving progressive deformation and buffering. Bosses of different heights can be precisely adjusted according to the working pressure and deformation requirements of the main spring to provide more optimized vibration reduction performance. The bosses can increase the local stiffness and strength of the main spring and improve its ability to support external loads. When supporting the shock absorber, the bosses can withstand the pressure from the upper bladder, the lower bladder and other components to prevent the main spring from excessive deformation. Bosses of different heights can be reasonably distributed according to the force conditions of the main spring, so that the main spring can provide sufficient support force at different positions and improve the stability of the entire hydraulic assembly. The presence of the bosses can change the elastic properties of the main spring, so that it can absorb and disperse energy more effectively when subjected to vibration and impact. Bosses with different heights can provide different degrees of elastic deformation, thereby achieving more refined vibration reduction adjustment. The design of the boss can make the main spring have different stiffness and damping characteristics in different working stages, adapt to different driving conditions and road conditions, and improve the vibration reduction effect and ride comfort of the vehicle. The boss on the main spring interacts with the upper and lower bladders to affect the pressure distribution of the liquid chamber. When the main spring is deformed, the boss can change the volume and shape of the liquid chamber, thereby adjusting the damping fluid pressure in the liquid chamber. By reasonably designing the height and distribution of the boss, it is possible to achieve precise control of the liquid chamber pressure and improve the vibration reduction performance and response speed of the hydraulic assembly. The enhanced support force of the boss can reduce the fatigue damage and deformation risks of the main spring, and improve the reliability and service life of the support on the shock absorber. The stable main spring structure can ensure that the hydraulic assembly maintains good performance during long-term operation and reduce the maintenance and replacement costs caused by the failure of the main spring. Good vibration reduction effect can improve the handling stability and ride smoothness of the vehicle. The boss on the main spring can effectively reduce the vibration and bumps of the vehicle during driving, allowing the driver to better control the vehicle and improve driving safety and comfort. The precisely adjusted fluid chamber pressure can make the shock absorber upper support respond more quickly and accurately to different road conditions and driving conditions, further optimizing the vehicle's handling performance.

[0026] Furthermore, a shock absorber upper support includes an upper support bracket, a plurality of bolt positioning holes are opened on the upper support bracket, a bolt is coaxially fixed in each bolt positioning hole, a hydraulic assembly mounting groove with an open top is coaxially arranged on the upper part of the upper support bracket, the hydraulic assembly of the shock absorber upper support is coaxially arranged in the hydraulic assembly mounting groove, a bracket end cover is coaxially fixed to the top of the hydraulic assembly mounting groove, and the bracket end cover presses and fixes the hydraulic assembly in the hydraulic assembly mounting groove.

[0027] The upper support bracket is one of the main structural components of the upper support of the shock absorber, and plays the role of supporting and connecting other components. It is usually made of high-strength metal materials and has sufficient strength and rigidity to withstand various loads during vehicle driving. The upper support bracket is provided with multiple bolt positioning holes, and a bolt is coaxially fixed in each bolt positioning hole. These bolts are used to connect the upper support bracket with other components of the vehicle to ensure that the upper support of the shock absorber is firmly and reliably installed on the vehicle. The upper part of the upper support bracket is coaxially provided with a hydraulic assembly mounting groove with an open top. The shape and size of this mounting groove match the hydraulic assembly and are used to install and fix the hydraulic assembly. The hydraulic assembly is the core component of the upper support of the shock absorber, which consists of an inner frame, an upper liquid chamber, a lower liquid chamber, a liquid inlet flow channel, a connecting flow channel, a damping fluid, a main spring, an upper skin bladder, a lower skin bladder, etc. The function of the hydraulic assembly is to absorb and consume the vibration and impact energy during the driving process of the vehicle through the flow and deformation of the damping fluid, thereby achieving the purpose of vibration reduction. The hydraulic assembly is installed in the hydraulic assembly mounting groove and is coaxially arranged with the upper support bracket. This ensures that the hydraulic assembly can function stably during operation and is also easy to install and maintain. The bracket end cover is located at the top of the hydraulic assembly installation groove and is coaxially fixed with the upper support bracket. Its function is to press and fix the hydraulic assembly in the hydraulic assembly installation groove to prevent the hydraulic assembly from loosening or displacement during operation. The bracket end cover is usually made of metal material and has sufficient strength and rigidity to withstand the pressure and external load of the hydraulic assembly. It can be fixed to the upper support bracket by bolt connection, welding, etc. to ensure a firm and reliable connection. As the main structural component of the shock absorber upper support, the upper support bracket undertakes the important task of connecting the shock absorber upper support with other vehicle components. Its strength and rigidity directly affect the installation stability and reliability of the shock absorber upper support. The setting of the bolt positioning hole and the bolt enables the upper support bracket to be firmly connected with other components of the vehicle. This connection method ensures that the shock absorber upper support will not loosen or fall off during the driving of the vehicle, ensuring the driving safety of the vehicle.

[0028] Furthermore, a mounting structure for a shock absorber upper support includes a shock absorber, wherein the lower end of the shock absorber is fixed to the wheel, and the upper end of the shock absorber is fixed with the above-mentioned shock absorber upper support, and the tops of multiple bolts pass through the vehicle body and are detachably fixed to the vehicle body by nuts.

[0029] The above-mentioned shock absorber plays a key role in the entire mounting structure. Its lower end is fixed to the wheel, which can effectively reduce the vibration generated by the wheel during driving and transmitted to the vehicle body. The shock absorber is usually composed of a spring and a damper. The spring is used to absorb vibration energy, and the damper is used to control the rebound speed of the spring, so that the vehicle can drive more smoothly. The upper end of the shock absorber is fixed with a shock absorber upper support. Through this connection method, the shock absorber is connected to the vehicle body to achieve support and vibration reduction for the vehicle body. As mentioned above, the shock absorber upper support includes components such as an upper support bracket, a hydraulic assembly, and a bracket end cover. It provides a mounting platform for the shock absorber and is connected to the vehicle body by bolts. The design and performance of the shock absorber upper support directly affect the vibration reduction effect and reliability of the entire mounting structure. Among them, the multiple bolt positioning holes and bolts on the upper support bracket are used to fix the shock absorber upper support to the vehicle body. The tops of these bolts pass through the vehicle body and are removably fixed by nuts, which is convenient for installation and maintenance. The vehicle body is the main structure of the entire vehicle and bears various loads of the vehicle. The upper support of the shock absorber is fixed to the vehicle body by bolts and nuts, and transmits the force of the shock absorber to the vehicle body, thereby reducing the vibration and bumps during the driving of the vehicle. The above-mentioned mounting structure connects the shock absorber to the vehicle body to form a complete vibration reduction system. As the intermediate link of the connection, the upper support of the shock absorber plays the role of transmitting force and vibration reduction. It can evenly transmit the damping force generated by the shock absorber to the vehicle body, reduce the vibration and bumps of the vehicle body, and improve the driving comfort and stability of the vehicle. At the same time, the detachable fixing method makes installation and maintenance more convenient. When the shock absorber or the upper support of the shock absorber needs to be replaced, the bolts and nuts can be easily removed for maintenance and replacement. A good upper support mounting structure of the shock absorber can improve the performance of the vehicle. It can reduce the vibration and bumps of the vehicle during driving and improve the handling and stability of the vehicle. At the same time, it can also reduce the wear of vehicle parts and extend the service life of the vehicle. In addition, this mounting structure can also reduce the noise during the driving of the vehicle and improve the riding comfort of the vehicle. When the vehicle is driving on an uneven road, the wheels will vibrate and impact. These vibrations and impacts are transmitted to the upper support of the shock absorber through the shock absorber. The hydraulic assembly in the upper support of the shock absorber absorbs and consumes vibration and impact energy through the flow and deformation of the damping fluid. At the same time, elastic components such as the main spring, upper bladder, and lower bladder will also provide a certain elastic support to further improve the vibration reduction effect. The upper support of the shock absorber transmits the force generated by the shock absorber to the vehicle body, and disperses and withstands these forces through the structure and strength of the vehicle body. At the same time, the vehicle body will also feed back part of the force to the upper support of the shock absorber, forming a dynamic balance system. Bolts and nuts fix the upper support of the shock absorber to the vehicle body to ensure the stability and reliability of the entire installation structure. During the driving process of the vehicle, the bolts and nuts need to withstand various forces from the shock absorber and the vehicle body, so they need to have sufficient strength and tightening force.

[0030] The beneficial effects of the present invention are as follows: in the present invention, the inner frame serves as the core support structure of the entire hydraulic assembly, providing a foundation for the installation and fixing of other components. The upper liquid chamber and the lower liquid chamber are respectively located on the upper and lower sides of the middle part of the inner frame, and are coaxially arranged. They are the main spaces for storing damping fluid in the hydraulic assembly, and are interconnected through connecting flow channels. The liquid inlet flow channel is opened in the inner frame, connected to the upper liquid chamber, and its liquid inlet is blocked. The function of the liquid inlet flow channel is to inject the damping fluid into the upper liquid chamber during the assembly of the hydraulic assembly. Once the injection is completed, the liquid inlet is blocked to prevent the damping fluid from leaking. The connecting flow channel is also opened in the inner frame, which connects the upper liquid chamber and the lower liquid chamber so that the damping fluid can flow between the two liquid chambers. The liquid inlet flow channel, the upper liquid chamber, the connecting flow channel and the lower liquid chamber together form a closed space that can undergo elastic deformation. It ensures that the damping fluid will not leak during the working process, thereby ensuring the stability and reliability of the upper support of the shock absorber. When the vehicle is driving, when the upper support of the shock absorber is subjected to vibration and impact from the road surface, the enclosed space will deform accordingly, causing the damping fluid to flow between the liquid chambers, generating a damping force and playing a vibration reduction role.

[0031] To sum up, the hydraulic assembly of the shock absorber upper support designed in the present invention can effectively improve the performance and reliability of the shock absorber upper support through unique structural design and the effect of damping fluid. It has good damping performance and performs vibration reduction in a hydraulic manner, replacing the vibration reduction function of the rubber main spring. It has the advantages of being not easy to age, high strength and good wear resistance. In addition, the hydraulic vibration reduction based on damping fluid is not sensitive to temperature. The shock absorber upper support designed based on the hydraulic assembly and its installation structure provide the vehicle with a more comfortable and stable driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A quarter-section perspective view of the upper support of the shock absorber of the present invention;

[0033] Figure 2 A quarter-section perspective view of the upper support bracket of the present invention;

[0034] Figure 3 is an axial cross-sectional view of the upper support of the shock absorber in the present invention;

[0035] Figure 4 is an axial cross-sectional view of the internal skeleton in the present invention;

[0036] Figure 5 A quarter cross-section of the upper inner frame of the present invention Figure 1 ;

[0037] Figure 6 A quarter cross-section of the upper inner frame of the present invention Figure 2 ;

[0038] Figure 7 A quarter cross-section of the lower inner frame of the present invention Figure 1 ;

[0039] Figure 8 A quarter cross-section of the lower inner frame of the present invention Figure 2 ;

[0040] Fig. 9 A quarter cross-sectional perspective view of the inner frame of the present invention;

[0041] Fig.10 A quarter-section stereoscopic view of the epithelial bladder of the present invention;

[0042] Fig.11 A quarter cross-sectional perspective view of the lower bladder of the present invention;

[0043] Fig.12 A quarter cross-sectional perspective view of a structure in which the main spring and the outer frame are fixed as an integral whole in the present invention;

[0044] Fig.13 A quarter cross-sectional perspective view of a structure in which the main spring, the outer frame and the inner frame are fixed as an integral whole in the present invention;

[0045] Fig.14 A quarter-section stereogram of a structure in which the main spring, the outer frame, the inner frame and the upper and lower skin bags are fixed as an integral whole in the present invention;

[0046] Fig.15 A three-dimensional diagram of the upper and lower liquid chambers in the present invention connected by a connecting flow channel;

[0047] Fig.16 for Fig.15 Exploded diagram of

[0048] Fig.17 An exploded view of the upper support and mounting structure of the shock absorber in the present invention;

[0049] Among them, 1—endoskeleton (1.1—endoskeleton main axis, 1.2—endoskeleton ring), 2—upper liquid chamber, 3—lower liquid chamber, 4—liquid inlet channel, 5—connecting channel, 6—damping liquid, 7—main spring, 8—upper skin bladder, 9—lower skin bladder, 10—skin bladder outer skin, 11—skin bladder lining, 12—exoskeleton, 13—boss, 14—upper support bracket, 15—bolt positioning hole, 16—bolt, 17—hydraulic assembly mounting groove, 18—bracket end cover, 19—shock absorber, 20—upper endoskeleton Frame (20.1—upper inner skeleton main shaft, 20.2—upper inner skeleton ring, 20.3—positioning protrusion, 20.4—upper connecting flow channel), 21—lower inner skeleton (21.1—lower inner skeleton main shaft, 21.2—lower inner skeleton ring, 21.3—positioning groove, 21.4—lower connecting flow channel), 22—steel ball, 23—sealing steel ring, 24—upper throttle port, 25—lower throttle port, 26—shock absorber upper support, 27—caliper, 28—wheel, 29—buffer block. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0051] Figure 1 The figure shows an embodiment of the upper support 26 of the shock absorber. The upper support 26 of the shock absorber includes an upper support bracket 14. In some embodiments, the structure of the upper support bracket 14 is as follows: Figure 2 As shown, the upper support bracket 14 includes a plurality of bolt positioning holes 15 opened around the periphery thereof, and a bolt 16 is coaxially fixed in each bolt positioning hole 15. Figure 3 As shown, in some embodiments, the bolt 16 is fixed in the bolt positioning hole 15 by interference fit. A hydraulic assembly is coaxially fixed in the upper support bracket 14. In some embodiments, such as Figure 1 As shown in FIG. 3 , a hydraulic assembly mounting groove 17 with an open top is provided on the upper portion of the upper support bracket 14. The hydraulic assembly is coaxially arranged in the hydraulic assembly mounting groove 17. A bracket end cover 18 is provided above the hydraulic assembly for press-fitting and fixing the hydraulic assembly in the hydraulic assembly mounting groove.

[0052] Based on the structure of the above-mentioned shock absorber upper support 26, the assembly method thereof is:

[0053] S1, press the assembled hydraulic assembly into the hydraulic assembly installation groove 17;

[0054] S2, placing the bracket end cover 18 in the top notch of the hydraulic assembly mounting groove 17, and performing a riveting operation on the top notch of the hydraulic assembly mounting groove 17, so that the top circumferential notch of the hydraulic assembly mounting groove 17 presses the circumferential edge of the bracket end cover 18;

[0055] S3, press the bolt 16 into the bolt positioning hole 15 with interference fit.

[0056] Figure 1 , Figure 3 The figure shows an embodiment of a hydraulic assembly, comprising an inner skeleton 1 and an upper liquid chamber 2 and a lower liquid chamber 3 coaxially arranged on the upper and lower sides of the middle part of the inner skeleton 1; a liquid inlet channel 4 connected to the upper liquid chamber 2 and with a blocked liquid inlet port, and a connecting channel 5 connected to the upper liquid chamber 2 and the lower liquid chamber 3 are provided in the inner skeleton 1, and the liquid inlet channel 4, the upper liquid chamber 2, the connecting channel 5 and the lower liquid chamber 3 form a closed space that can undergo elastic deformation, and the closed space is filled with damping liquid 6.

[0057] Figure 4 The figure shows an embodiment of the endoskeleton 1, which comprises an endoskeleton main shaft 1.1 and an endoskeleton ring 1.2 coaxially fixedly connected to the circumferential surface of the middle part of the endoskeleton main shaft 1.1.

[0058] To realize the structure of the inner frame 1, Figure 5 As shown in FIG. 8 , the present invention designs a specific structure of an inner skeleton 1:

[0059] The inner frame 1 comprises an upper inner frame 20 and a lower inner frame 21 which are coaxially arranged and can be spliced ​​into one piece.

[0060] The upper inner frame 20 comprises an upper inner frame main shaft 20.1 and an upper inner frame ring 20.2 coaxially connected to the lower part of the upper inner frame main shaft 20.1. The upper inner frame main shaft 20.1 and the upper inner frame ring 20.2 are an integral structure. A positioning protrusion 20.3 is provided at the bottom of the upper inner frame main shaft 20.1, and an annular upper connecting flow channel 20.4 is provided at the bottom of the upper inner frame ring 20.2. An upper throttle port 24 is provided somewhere in the upper connecting flow channel 20.4. A liquid inlet flow channel 4 is provided inside the upper inner frame main shaft 20.1.

[0061] The lower inner frame 21 includes a lower inner frame main shaft 21.1 and a lower inner frame ring 21.2 coaxially connected to the upper part of the lower inner frame main shaft 21.1. The lower inner frame main shaft 21.1 and the lower inner frame ring 21.2 are an integral structure. A positioning groove 21.3 is provided at the top of the lower inner frame main shaft 21.1, and an annular lower connecting flow channel 21.4 is provided at the top of the lower inner frame ring 21.2. A lower throttle port 25 is provided somewhere in the lower connecting flow channel 21.4.

[0062] like Fig. 9 As shown, the upper inner skeleton 20 and the lower inner skeleton 21 can be coaxially connected to form an inner skeleton 1, wherein the upper inner skeleton main shaft 20.1 is inserted into the positioning groove at the top of the lower inner skeleton main shaft 21.1, and the positioning protrusion 20.3 is inserted into the positioning groove 21.3, and the upper inner skeleton main shaft 20.1 and the lower inner skeleton main shaft 21.1 together form the inner skeleton main shaft 1.1. The bottom surface of the upper inner skeleton ring 20.2 and the top surface of the lower inner skeleton ring 21.2 are fitted to form the inner skeleton ring 1.2. The upper connecting flow channel 20.4 and the lower connecting flow channel 21.4 are spliced ​​to form a connecting flow channel 5. The damping fluid 6 can enter the connecting flow channel 5 through the liquid inlet flow channel 4 and the upper throttle port 24. The liquid inlet flow channel 4 can be blocked by an interference fit with the steel ball 22 (such as Figure 1 and Figure 3 shown).

[0063] Fig.10 —14 shows an embodiment of the upper liquid chamber 2 and the lower liquid chamber 3.

[0064] The circumferential edge of the inner skeleton ring 1.2 is wrapped and connected to the main spring 7 which can undergo elastic deformation. The upper and lower sides of the main spring 7 are respectively fixed with an upper leather bag 8 and a lower leather bag 9 which can undergo elastic deformation. The upper leather bag 8, the upper surface of the main spring 7 and the middle upper surface of the inner skeleton 1 form an upper liquid chamber 2. The lower leather bag 9, the lower surface of the main spring 7 and the middle lower surface of the inner skeleton 1 form a lower liquid chamber 3. The inner skeleton main axis 1.1 coaxially passes through the upper liquid chamber 2 and the lower liquid chamber 3. The upper liquid chamber 2 is located above the inner skeleton ring 1.2, and the lower liquid chamber 3 is located below the inner skeleton ring 1.2.

[0065] Fig.10 The figure shows an embodiment of the upper epithelial bladder 8: the upper epithelial bladder 8 comprises a through hole in the middle corresponding to the main axis 1.1 of the inner skeleton, an annular bladder outer skin 10 and a bladder lining 11 arranged inside the bladder outer skin 10 along the circumferential direction of the bladder outer skin 10.

[0066] like Fig.14As shown, the circumferential edge of the bladder outer skin 10 is clamped in the main spring 7, and the middle part of the bladder outer skin 10 extends toward the upper inner skeleton main shaft 20.1, corresponding to the upper shape of the upper inner skeleton main shaft 20.1, and can be clamped in the upper ring groove of the upper inner skeleton main shaft 20.1, and fixed in the upper ring groove of the upper inner skeleton main shaft 20.1 by fixing the sealing steel ring 23.

[0067] Fig.11 The figure shows an embodiment of the lower bladder 9: the lower bladder 9 comprises a through hole in the middle corresponding to the main axis 1.1 of the inner skeleton, an annular bladder outer skin 10 and a bladder lining 11 arranged inside the bladder outer skin 10 along the circumferential direction of the bladder outer skin 10.

[0068] like Fig.14 As shown, the circumferential edge of the bladder outer skin 10 is clamped in the main spring 7, and the middle part of the bladder outer skin 10 extends toward the lower inner skeleton main shaft 21.1, corresponding to the lower shape of the lower inner skeleton main shaft 21.1, and can be clamped in the lower annular groove of the lower inner skeleton main shaft 21.1, and fixed in the lower annular groove of the lower inner skeleton main shaft 21.1 by fixing the sealing steel ring 23.

[0069] Fig.12 The figure shows an embodiment of the main spring 7: the circumferential edge of the main spring 7 is fixedly connected with an annular outer frame 12, and the upper and lower surfaces of the main spring 7 are provided with a plurality of bosses 13 of different heights at intervals along the circumferential direction. The outer frame 12 can clamp and fix the main spring 7 with the upper and lower skin bags 8 and 9 by radial clamping.

[0070] After the structural assembly of the above hydraulic assembly is completed, the damping liquid 6 is filled, and the operation includes: the damping liquid 6 is introduced into the upper liquid chamber 2 through the liquid inlet channel 4, and at the same time, the damping liquid 6 is introduced into the connecting channel 5 through the upper throttle port 24, and the damping liquid 6 is introduced into the lower liquid chamber 3 through the lower throttle port 25. After the upper and lower liquid chambers are filled with the damping liquid 6, the steel ball 22 is pressed in by interference to block the liquid inlet channel 4, so that the liquid inlet channel 4, the upper liquid chamber 2, the connecting channel 5 and the lower liquid chamber 3 form a closed space that can undergo elastic deformation and is filled with the damping liquid 6 (such as Fig.15 —16).

[0071] like Fig.17 As shown, based on the structure of the above-mentioned shock absorber upper support 26, a specific embodiment of the mounting structure of the shock absorber upper support designed by the present invention includes a shock absorber 19, the shock absorber shaft passes through a buffer block 28 and is fixed in the axial hole of the inner skeleton main shaft 1.1, the upper support bracket 14 is fixed to the vehicle body by the matching structure of bolts and nuts, the lower end of the shock absorber 19 is fixed to the caliper 27, and the caliper 27 is fixed to the wheel 28.

[0072] In the present invention, the inner frame 1 serves as the core support structure of the entire hydraulic assembly, providing a foundation for the installation and fixing of other components. The upper liquid chamber 2 and the lower liquid chamber 3 are respectively located on the upper and lower sides of the middle part of the inner frame 1, and are coaxially arranged. They are the main spaces for storing the damping fluid 6 in the hydraulic assembly, and are interconnected through the connecting flow channel 5. The liquid inlet flow channel 4 is opened in the inner frame 1, connected to the upper liquid chamber 2, and its liquid inlet is blocked. The function of the liquid inlet flow channel 4 is to inject the damping fluid 6 into the upper liquid chamber 2 during the assembly of the hydraulic assembly. Once the injection is completed, the liquid inlet is blocked to prevent the damping fluid from leaking. The connecting flow channel 5 is also opened in the inner frame 1, which connects the upper liquid chamber 2 and the lower liquid chamber 3, so that the damping fluid 6 can flow between the two liquid chambers. The liquid inlet flow channel 4, the upper liquid chamber 2, the connecting flow channel 5 and the lower liquid chamber 3 together form a closed space that can undergo elastic deformation. It ensures that the damping fluid 6 will not leak during the working process, thereby ensuring the stability and reliability of the shock absorber upper support 26. When the upper support 26 of the shock absorber is subjected to vibration and impact from the road surface during vehicle driving, the enclosed space will deform accordingly, so that the damping fluid 6 flows between the fluid chambers, generating a damping force and playing a role in vibration reduction.

[0073] To sum up, the hydraulic assembly of the shock absorber upper support 26 designed in the present invention can effectively improve the performance and reliability of the shock absorber upper support 26 through unique structural design and the effect of the damping fluid 6. It has good damping performance and performs vibration reduction in a hydraulic manner, replacing the vibration reduction function of the rubber main spring. It has the advantages of being not easy to age, having high strength and good wear resistance. In addition, the hydraulic vibration reduction based on the damping fluid 6 is not sensitive to temperature. The shock absorber upper support 26 designed based on the hydraulic assembly and its installation structure provide the vehicle with a more comfortable and stable driving experience.

[0074] It should be noted here that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solution of the present invention is limited only by the scope of the claims. In the case of using "including", "having" and "comprising" described in this specification, there may also be another part or other parts, and the terms used may generally be singular but may also represent plural forms.

[0075] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A hydraulic assembly supported on a shock absorber, characterized in that: It comprises an inner frame (1), and an upper liquid chamber (2) and a lower liquid chamber (3) coaxially arranged on the upper and lower sides of the middle of the inner frame (1); The inner skeleton (1) is provided with a liquid inlet channel (4) which is connected to the upper liquid chamber (2) and has a blocked liquid inlet, and a connecting channel (5) which is connected to the upper liquid chamber (2) and the lower liquid chamber (3). The liquid inlet channel (4), the upper liquid chamber (2), the connecting channel (5) and the lower liquid chamber (3) form a closed space that can undergo elastic deformation, and the closed space is filled with a damping liquid (6).

2. The hydraulic assembly supported on the shock absorber according to claim 1, characterized in that: The inner skeleton (1) comprises an inner skeleton main axis (1.1) and an inner skeleton ring (1.2) coaxially fixedly connected to the circumferential surface of the middle part of the inner skeleton main axis (1.1); the inner skeleton main axis (1.1) coaxially passes through the upper liquid chamber (2) and the lower liquid chamber (3), the upper liquid chamber (2) is located above the inner skeleton ring (1.2), and the lower liquid chamber (3) is located below the inner skeleton ring (1.2).

3. The hydraulic assembly supported on the shock absorber according to claim 2, characterized in that: The circumferential edge of the inner skeleton ring (1.2) is wrapped and connected to the main spring (7) that can undergo elastic deformation. The upper and lower sides of the main spring (7) are respectively fixed with an upper leather bag (8) and a lower leather bag (9) that can undergo elastic deformation. The upper leather bag (8), the upper surface of the main spring (7) and the middle upper surface of the inner skeleton (1) form the upper liquid chamber (2), and the lower leather bag (9), the lower surface of the main spring (7) and the middle lower surface of the inner skeleton (1) form the lower liquid chamber (3).

4. The hydraulic assembly supported on the shock absorber according to claim 2 or 3, characterized in that: The liquid inlet channel (4) is provided in the inner skeleton main shaft (1.1), and the connecting channel (5) is provided in the inner skeleton circular ring (1.2).

5. The hydraulic assembly supported on the shock absorber according to claim 4, characterized in that: The connecting flow channel (5) comprises an arc-shaped flow channel arranged concentrically with the inner skeleton ring (1.2).

6. The hydraulic assembly supported on the shock absorber according to claim 3, characterized in that: The upper skin bag (8) and the lower skin bag (9) both include a ring-shaped skin bag outer skin (10) with a through hole in the middle corresponding to the main axis of the inner skeleton (1.1), and a skin bag inner skin (11) arranged inside the skin bag outer skin (10) along the circumferential direction of the skin bag outer skin (10), the circumferential edge of the skin bag outer skin (10) is clamped in the main spring (7), and the middle part of the skin bag outer skin (10) is fixed on the main axis of the inner skeleton (1.1).

7. The hydraulic assembly supported on the shock absorber according to claim 6, characterized in that: The circumferential edge of the main spring (7) is fixedly connected to an annular outer frame (12), and the outer frame (12) can clamp and fix the main spring (7) with the upper skin bag (8) and the lower skin bag (9) by radial clamping.

8. The hydraulic assembly supported on the shock absorber according to claim 3, characterized in that: The upper and lower surfaces of the main spring (7) are provided with a plurality of bosses (13) of different heights at intervals along the circumferential direction thereof.

9. A shock absorber upper support, comprising an upper support bracket (14), wherein the upper support bracket (14) is provided with a plurality of bolt positioning holes (15), wherein a bolt (16) is coaxially fixed in each bolt positioning hole (15), wherein the upper support bracket (14) is provided with a plurality of bolt positioning holes ... A hydraulic assembly mounting groove (17) with an open top is coaxially arranged on the upper part of the upper support bracket (14), and a hydraulic assembly supported on the shock absorber as described in any one of claims 1 to 8 is coaxially arranged in the hydraulic assembly mounting groove (17), and a bracket end cover (18) is coaxially fixed to the top of the hydraulic assembly mounting groove (17), and the bracket end cover (18) presses and fixes the hydraulic assembly in the hydraulic assembly mounting groove (17).

10. A mounting structure for a shock absorber upper support, comprising a shock absorber (19), wherein the lower end of the shock absorber (19) is fixed to a wheel, and the upper end of the shock absorber (19) is fixed to the shock absorber upper support as claimed in claim 9, wherein the tops of a plurality of the bolts (16) pass through the vehicle body and are detachably fixed to the vehicle body by nuts.

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