Rotary Oil Distribution Valve for New Hybrid Digital Servo Actuator

Abstract

The invention discloses a rotary oil distribution valve for a novel composite digital servo actuator. The rotary oil distribution valve mainly consists of a valve body, a valve core and a drive motor, wherein the drive motor drives the valve core to rotate in the valve body; a valve core pressure oil passage, a valve core return oil passage and corresponding communication openings are arranged on the valve core; and a valve body pressure oil passage, a valve body return oil passage, a valve body auxiliary oil passage and corresponding communication openings are arranged on the valve body. Alternate oil supply for a hydraulic actuator can be realized by controlling the specific position of the valve core in the valve body while the pressure oil passages of other hydraulic actuators are cut off, and the return oil passage is in a communicated state so that oil can be returned to an oil tank. Through reasonable and delicate oil passage layout, the rotary oil distribution valve disclosed by the invention integrates the functions of alternate oil supply and oil return, the integration level of the system is increased, the cost is lowered, and the reliability is improved.

Description

technical field [0001] The invention relates to a fluid control valve, in particular to a rotary oil distributing valve for a new type of small-volume and high-torque composite digital servo actuator, especially capable of alternating multiple hydraulic actuators in a given order Oil supply and oil return function. Background technique [0002] With the continuous advancement of industrial technology, the requirements for the automation and intelligence of industrial production processes are also increasing. The control of various actions on the complex production line also puts forward higher requirements for the accuracy, controllability, digitization and intelligence of the actuator. At present, the development trend of actuators used for servo control is that they have high power density, high torque output, high reliability, high protection, small size, and easy installation and maintenance. Traditional motor-based actuators and actuators based on It is difficult for ...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a rotary oil distribution valve for a type of composite digital servo actuator, which can alternately supply oil to multiple hydraulic actuators and has an oil return function, so as to solve the problem of using traditional control valves for fluid Problems of low integration, high cost and low reliability of control

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