Hydraulic cylinder low-pressure linear output realizing method

Abstract

The present invention relates to a method used in the field of hydraulic technology, in particular, it relates to a hydraulic cylinder low-pressure linear output implementation method. Said method is characterized by that it utilizes hydraulic cylinder proportion regulation method, when the hydraulic cylinder is worked, it can simultaneously apply pressure to upper and lower two faces of the piston of hydraulic cylinder, and utilizes the pressure difference of upper and lower two cavities of the hydraulic cylinder to produce working pressure so as to implement low-pressure high-accuracy control of hydraulic cylinder. Besides, said invention also provides the concrete steps for implementing said method.

Description

technical field

[0001] The invention relates to a method used in the technical field of hydraulic pressure, in particular to a method for realizing low-pressure linear output of a hydraulic cylinder. Background technique

[0002] The hydraulic cylinder is a machine that converts the hydraulic pressure generated by the hydraulic system into mechanical motion or force. When the hydraulic cylinder is working, the proportional adjustment system can linearly adjust the working pressure within a certain range, but it is restricted by the working characteristics of the general hydraulic valve. The initial working pressure of the system is much higher than the ideal pressure state. Generally, the minimum working pressure of the hydraulic cylinder is about 10% of the maximum tonnage. For example, the minimum controllable pressure of a common 40-ton hydraulic cylinder system is about 4 tons. Pressure values ​​smaller than the minimum tonnage cannot be adjusted precisely. The minimum ...

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