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High frequency response large flow proportional valve and control system thereof

A technology of control system and large flow, applied in the direction of using electric device flow control, valve details, multi-port valve, etc., can solve the problems of low frequency response of proportional valve, limited speed of opening and closing of valve port, etc. The effect of maximum opening, increasing automation and increasing speed

Active Publication Date: 2020-05-12
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0002] The electro-hydraulic proportional valve is a hydraulic component between the on-off hydraulic valve and the electro-hydraulic servo valve using proportional control technology. The conventional proportional valve is fixed with the valve sleeve embedded in the valve body, and the valve core is driven by the electromagnet. Movement in the valve sleeve to control the opening of the valve port; however, because the valve sleeve is fixed, only the valve core is moving, and the speed of opening and closing of the valve port is limited, that is, the frequency response of the proportional valve is not high

Method used

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  • High frequency response large flow proportional valve and control system thereof

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Embodiment Construction

[0017] 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.

[0018] A high-response large-flow proportional valve, such as figure 1 As shown, it includes valve body 1, valve sleeve 2, valve core 3, first connection mechanism 4, first power device 5, first displacement sensor 6, second connection mechanism 7, second power device 8, second displacement sensor 9. A valve sleeve 2 is set inside the valve body 1, and a valve core 3 is set inside the valve sleeve 2. One end of the valve sleeve 2 is connected with the first p...

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Abstract

The invention belongs to the technical field of proportional valves and particularly relates to a high frequency response large flow proportional valve and a control system thereof. The high frequencyresponse large flow proportional valve comprises a valve body, a valve sleeve, a valve element, a first connecting mechanism, a first power device, a first displacement sensor, a second connecting mechanism, a second power device and a second displacement sensor, wherein the valve sleeve is mounted in the valve body in a sleeving manner; the valve element is mounted in the valve sleeve in a sleeving manner; one end of the valve sleeve is connected with the first power device through the first connecting mechanism; the first displacement sensor is arranged between the valve sleeve and the first power device; one end of the valve element is connected with the second power device through the second connecting mechanism; and the second displacement sensor is arranged between the valve elementand the second power device. The high frequency response large flow proportional valve controls the valve element and the valve sleeve to move simultaneously, so that the opening and closing speed, the maximum opening degree and the maximum throughput of the valve port are increased. The high frequency response large flow proportional valve is used for controlling the liquid flow rate and direction.

Description

technical field [0001] The invention belongs to the technical field of proportional valves, in particular to a high-response and large-flow proportional valve and its control system. Background technique [0002] The electro-hydraulic proportional valve is a hydraulic component between the on-off hydraulic valve and the electro-hydraulic servo valve using proportional control technology. The conventional proportional valve is fixed with the valve sleeve embedded in the valve body, and the valve core is driven by the electromagnet. It moves in the valve sleeve to control the opening of the valve port; however, since the valve sleeve is fixed, only the valve core is moving, and the opening and closing speed of the valve port is limited, that is, the frequency response of the proportional valve is not high. Contents of the invention [0003] In view of the above-mentioned technical problem of low frequency response of the proportional valve, the present invention provides a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K31/04F16K31/06F16K31/50G05D7/06
CPCF16K11/07F16K31/046F16K31/0613F16K31/50G05D7/06
Inventor 马立峰蔺素宏安高成李纬良
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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