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High-speed switching type multifunctional servo valve

A high-speed switching valve and high-speed switching technology, which is applied in the direction of servo motor components, fluid pressure actuating devices, fluid pressure actuating system components, etc., can solve the complex structure of the four-position six-way switching valve, which cannot be adjusted and limited by the flow of the valve. Oil cylinder control effect and other issues, to achieve maximum practicality and economy, fast response, and ensure continuity

Inactive Publication Date: 2012-04-25
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this patent, the two-position three-way high-speed switching valve is generally imported from abroad and is expensive; the four-position six-way switching valve has a complex structure and a large volume; The flow rate is adjusted, which greatly limits the control effect on the cylinder

Method used

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Embodiment Construction

[0014] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] like figure 1 As shown, the present invention includes a controller 1, a first high-speed on-off valve 2, a second high-speed on-off valve 3, a third high-speed on-off valve 4, a fourth high-speed on-off valve 5, a first adjustable valve 6, and a second adjustable valve 7. The third adjustable valve 8, the fourth adjustable valve 9, the manual control panel 10, the oil pool 11, the servo oil cylinder 12, and the oil pump 13. Among them, the first high-speed switching valve 2, the third high-speed switching valve 4, the second adjustable valve 7, and the fourth adjustable valve 9 form the first electro-hydraulic control adjustable valve group, and the second adjustable valve 7 is an oil inlet valve. The fourth adjustable valve 9 is an oil discharge valve; the second high-speed on-off valve 3, the fourth high-speed on-off valve 5, t...

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Abstract

The invention relates to a high-speed switching type multifunctional servo valve which belongs to the technical field of hydraulic pressure and automatic control. The high-speed switching type multifunctional servo valve comprises a controller, four high-speed switching valves, four adjustable valves, a manual control disk, an oil pool, an oil cylinder and an oil pump. The high-speed switching type multifunctional servo valve is used for intelligently controlling a servo oil cylinder by sufficiently utilizing the advantages of quick response and long service life of a two-position, two-way and high-speed switching valve combination and the function of flexible programming of a single chip, thus the best control effect on difference control objects can be achieved; by combining the switching function of the manual control disk, the high-speed switching type multifunctional servo valve can realize a manual control mode and an automatic control mode, thereby guaranteeing the continuity of production and improving the production efficiency. In the automatic control state, the filling amount of hydraulic control ends in the adjustable valves can be adjusted by adjusting the opening time of the two-position, two-way and high-speed switching valve, thus an opening position between a valve core and a valve seat is changed to adjust the flow of working oil going in and out of the servooil cylinder and realize the speed-change control of the oil cylinder. The invention can be applied to all electrohydraulic servo systems and has great practicability and economy.

Description

technical field [0001] The invention relates to a servo valve, in particular to a high-speed switch-type multifunctional valve using a single-chip microcomputer as a controller; using a two-position two-way high-speed switching valve as a pilot valve to control an adjustable valve; and using a manual control panel to realize manual and automatic control. A servo valve belongs to the technical field of hydraulic pressure and automatic control. Background technique [0002] At present, servo cylinders are controlled by various servo valves connected by conventional electronic circuits. The structure is complicated, the price is expensive, and it is not conducive to popularization. Moreover, the reliability of domestic servo valves is not high, so there is no reliable servo valve in China. Cylinder products are automatically controlled. [0003] In the existing technology, the application number is 200720067300.7, and the utility model patent named intelligent switch type ball...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/18F15B21/08F15B13/04
Inventor 黄刘琦王春杰杨桂康
Owner SHANGHAI JIAOTONG UNIV
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