Vibration-sense-free translation vibration isolation system

Abstract

The invention relates to an active adjustable vibration isolation system which comprises a high-pressure chamber, a low-pressure chamber, an electromagnetic valve, a pressure sensor, a damper, a piston rod, a cylinder barrel and a height sensor. A fixed partition plate is arranged in the cylinder barrel, and an oil through hole is formed in the partition plate; the piston rod is arranged in the cylinder barrel, the damper is connected to the lower side of the piston rod, the inside of the cylinder barrel is divided into three cavities by the partition plate and a piston, the three cavities sequentially include a compressed air cavity a, a middle oil cavity b and a lower air cavity c, air is filled in the upper portion of the compressed air cavity a, and oil is filled in the lower portion of the compressed air cavity a. The active adjustable vibration isolation system has the advantages that the system comprises the height sensor and the pressure sensor, the height sensor detects change of the distance from the cylinder barrel to a lifting lug, and the pressure sensor detects change of the pressure of the compressed air cavity a; the damper and a spring which are connected with the cylinder barrel realize an impact relief effect, so that a carried mass at the upper end of the cylinder barrel can assuredly translate in a vibration-sense-free manner; when the vibration-sense-free translation vibration isolation system is applied to a suspension of an automobile, the vibration-sense-free translation vibration isolation system can realize effects of attenuating vibration and keeping an automobile body stable, and the height of the automobile body also can be adjusted.

Description

technical field [0001] The invention relates to a vibration isolation system, in particular to an actively adjustable vibration isolation system, specifically, an inflatable vibration isolation system for improving the smoothness of the bearing quality. Background technique [0002] A vibration isolator is a device produced to isolate vibration, and is usually used to prevent the transmission of vibration. In most occasions where the vibration requirements are not high, the use of traditional passive vibration isolators can achieve good results. However, with the further development of industrial modernization, people's requirements for the vibration isolation performance of vibration isolators are gradually increasing. Traditional passive vibration isolators are more difficult to isolate low-frequency vibrations, while active vibration isolators are more effective. However, the complete active vibration isolator has problems such as unstable operation and low safety perfo...

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Problems solved by technology

[0004] Although the above-mentioned scheme has made some progress in technology, there are still defects: the main problems are: 1. The series design layout is large in size and cannot be used in occasions where the space layout requirements are relatively high; 2. The response speed of the active vibration isolation device is slow. There is a delay in the vibration isolation effect corresponding to external excitation; third, the application range is narrow

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