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Hydro-pneumatic spring

A technology of oil-pneumatic springs and oil cylinders, which is applied in the direction of springs, spring/shock absorbers, gas-hydraulic shock absorbers, etc., can solve the problems of large impact, large suspension stiffness, and low vibration energy absorption, and achieve high cross-country speed, The effect of good ride comfort

Active Publication Date: 2017-05-24
CHINA NORTH VEHICLE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a vehicle with this kind of suspension is running on a flat road, the stiffness of the suspension is relatively large, the vibration frequency is high, the driving stability is poor, and the occupants are prone to fatigue when driving continuously
When driving on an uneven road surface, the impact from the road surface is very large, and the vehicle body vibrates violently. It is required to have sufficient stiffness and dynamic stroke to absorb the vibration energy. At this time, the spring stiffness is too small to absorb vibration energy. The performance is too poor, so the phenomenon of hitting the limit often occurs
This affects the increase in driving speed

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with drawings and embodiments.

[0019] like figure 1 , 2 , 3, and 4 show a double-tube oil-gas spring, which includes a connecting body 1, a damping valve 2, an adjustment pad 3, an oil cylinder 4, a main piston 5, an oil cylinder interface 6, a guide sleeve 7, a sealing cover 8, a lower Pin lug 9, inflation valve 10, air chamber cover 11, cylinder 12, floating piston 13, locking valve 14, small piston 15, locking interface 16 and joint bearing 17, and nitrogen is used as the elastic medium.

[0020] Joint body 1, lower pin lug 9 are equipped with joint bearing 17, link to each other with car body attached seat by joint bearing 17. The joint bearing 17 can effectively eliminate the lateral force on the spring caused by installation errors. The oil cylinder 4 is connected with the connecting body 1 through threads, and the main piston 5 adopts two combined sealing forms to cooperate with the inner w...

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Abstract

The invention aims at providing a hydro-pneumatic spring comprising a connecting body, a damping valve, an adjustable pad, an oil cylinder, a main piston, an oil cylinder connector, a guide sleeve, a sealing cover, a lower pin plug, an inflation valve, an air chamber sleeve, an air cylinder, a floating piston, a blocking valve, a small piston, a locking connector and a knuckle bearing. The hydro-pneumatic spring can not only meet the requirement for driving on a smooth road surface, but also meet the requirement for the operation stability index of a vehicle under a bumpy road condition, so that the driving comfort and off-road maneuvering capability are effectively improved.

Description

technical field [0001] The invention relates to a spring device, in particular to an oil-gas spring, which belongs to the category of hydraulic machinery. Background technique [0002] At present, many vehicles in our country adopt the structural form of torsion bar spring plus shock absorber or helical spring plus shock absorber. The elastic element and the damping element are separated, and the elastic characteristic of the elastic element is almost linear, and the stiffness is almost constant. changing. When a vehicle with this kind of suspension is running on a flat road, the stiffness of the suspension is relatively large, the vibration frequency is high, the driving stability is poor, and the occupants are prone to fatigue when driving continuously. When driving on an uneven road surface, the impact from the road surface is very large, and the car body vibrates violently. It is required to have sufficient stiffness and dynamic stroke to absorb the vibration energy. At...

Claims

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Application Information

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IPC IPC(8): F16F9/06F16F9/32F16F9/516
CPCF16F9/062F16F9/3207F16F9/3257F16F9/516
Inventor 陈轶杰张旭雷强顺张亚峰高晓东韩小玲杜甫徐梦岩鞠海洁郑冠慧侯茂新李宝强赵宁
Owner CHINA NORTH VEHICLE RES INST
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