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Two-position four-way rotary reversing valve

A rotary reversing valve, two-position four-way technology, used in fluid pressure actuating devices, servo motor components, mechanical equipment, etc., to ensure reliability, flexible reversing, and simple and reliable design

Active Publication Date: 2016-07-06
CHONGQING HUAYU HEAVY IND ELECTROMECHANICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The installation base plate of the CSDY jet tube electro-hydraulic servo valve is different from that of the current reversing valve, and cannot be directly replaced by a reversing valve

Method used

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  • Two-position four-way rotary reversing valve
  • Two-position four-way rotary reversing valve
  • Two-position four-way rotary reversing valve

Examples

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] See Figure 4 to Figure 13 , the two-position four-way rotary reversing valve of the present invention is used to replace the hydraulic servo valve before installing the hydraulic servo valve, and is installed at the position where the hydraulic servo valve should be installed to clean the oil circuit in the control system and It replaces the hydraulic servo valve to complete the function detection of the actuator. After the oil circuit cleaning and fu...

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Abstract

The invention discloses a two-position four-way rotary reversing valve. The two-position four-way rotary reversing valve comprises a valve body, a valve element arranged in the valve body, a valve cover for fixing the valve element in the valve body, and a pressing spring; the valve body includes a baseplate, and a valve element mounting cylinder projected from a mounting surface of the baseplate to be far from the mounting surface; four oil ports P, T, A and B are formed in the baseplate; a large end of the valve element is inserted in the valve element mounting cylinder, and a small end is exposed out of the valve element mounting cylinder; a blocking convex block is arranged on the large end surface of the valve element; the outer diameter of the middle section of the valve element is smaller than the outer diameter of the large end thereof for annularly coating the pressing spring on the middle section; a limiting convex block is outwards projected on the outer wall of the small end of the valve element; the valve cover covers the valve element mounting cylinder for axially fixing the valve element in the valve element mounting cylinder; the valve cover is provided with a through hole for penetrating through the small end of the valve element; and the inner wall of the through hole is outwards projected with an arc limiting space corresponding to the limiting convex block.

Description

technical field [0001] The invention relates to the field of current servo hydraulic control, in particular to a two-position four-way rotary reversing valve applied to ship hydraulic technology. Background technique [0002] The marine hydraulic control system can control the controlled variables such as position, speed, acceleration and force with a certain accuracy according to the requirements of marine equipment, and can work stably and accurately in the case of external interference, and realize the set technical function. In order to meet the above requirements, marine hydraulic control systems mostly use servo valves to form a closed-loop system with feedback to transmit control information and hydraulic power. Its typical composition is as figure 1 shown. [0003] The electro-hydraulic servo valve is a key component in the hydraulic control system, and the function of the servo valve directly affects the functional characteristics of the entire control system. S...

Claims

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Application Information

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IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 吴忠保
Owner CHONGQING HUAYU HEAVY IND ELECTROMECHANICAL CO LTD
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