Rotary type fluid-distributing valve

Abstract

A rotary liquid distributing valve comprises a valve body, a rotary valve plug, a drive motor, a closed end cover and an opening end cover. The closed end cover and the opening end cover are respectively connected to two ends of the valve body to form a closed hollow cavity; one end of a rotary valve plug arranged in the closed hollow cavity is connected with the drive motor; a high pressure oil chamber is formed among the closed end cover, the rotary valve plug, and the valve body; a low pressure oil chamber is formed among the opening end cover, the rotary valve plug and the valve body; the high pressure oil chamber is not communicated with the low pressure chamber; a plurality of valve body oil holes are formed on the outer peripheral side of the valve body and used for connecting an executive component oil duct; a plurality of valve plug oil holes are formed on the outer peripheral side of the rotary valve plug; and the valve body oil holes are communicated with the closed hollow cavity through the valve plug oil holes. The distributing valve has the advantages of compact and simple structure, small volume and high reliability. In the hydraulic system, the valve can provide a fluid with certain pressure quantitatively for a plurality of same or similar executive components in order and in certain direction, thereby enabling the executive components to reciprocate in sequence.

Description

technical field [0001] The invention mainly relates to the field of fluid control, in particular to a rotary fluid distribution valve. Background technique [0002] At present, in the commonly used electronically controlled hydraulic systems at home and abroad, various solenoid valves are mainly used to control fluid movement, and the opening and closing of the valves are controlled and driven by electrical signals. If it is necessary to complete the coordinated movement of multiple actuators, multiple solenoid valves are required for coordinated control, which puts forward higher requirements on the reliability of the control system. Otherwise, once the control error occurs, the actions realized by the actuators will be distorted or even ACCIDENT. If multiple actuators perform orderly reciprocating motion, various reversing valves need to be added, further increasing the complexity of the hydraulic system. In addition, due to the influence of the volume and working charac...

AI Technical Summary

Problems solved by technology

[0003] When designing hydraulic control systems such as robots and micro power control systems, if it is required to control the same or similar group of actuators to perform orderly and reciprocating motion, solenoid valves and reversing valves that are twice or even several times the number of actuators are required , there are problems such as large volume, heavy weight, poor reliability, high complexity, and high cost, which often lead to the final performance indicators not meeting the actual application requirements

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