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Large-flow high-frequency electrohydraulic exciting shock control valve drive system

A drive system, high-frequency electric technology, applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc., can solve the problems of limited excitation frequency, small flow, overload of hydraulic system, etc. Excitation frequency, avoidance of overload, effect of overcoming friction torque and fluid damping torque

Active Publication Date: 2010-06-02
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0005] In order to overcome the shortcomings of the existing large-flow high-frequency electro-hydraulic excitation control valve driven by a servo motor, the flow rate is small, the excitation frequency is limited, and the hydraulic system is easily overloaded. , High-flow high-frequency electro-hydraulic excitation control valve drive system to avoid hydraulic system overload

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  • Large-flow high-frequency electrohydraulic exciting shock control valve drive system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] refer to Figure 1 to Figure 8 , a high-flow high-frequency electro-hydraulic excitation control valve drive system, including a large-flow high-frequency electro-hydraulic excitation valve 2, a hydraulic cylinder 1 at the end of the main valve for driving the valve core to slide axially and linearly, and a hydraulic cylinder for driving the valve The transmission 3 with core rotation, the hydraulic cylinder 1 at the end of the main valve includes a cylinder body 4 and a driving piston 5, the driving piston 5 is fixedly installed at the end of the valve core 6, and the driving piston is used in the cylinder as a The cylinder block on one side of the valve core is a rod chamber, and the cylinder body on the other side is a rodless chamber. The rod chamber communicates with the high-pressure fuel tank, and the rodless chamber communicates with the high-pressure fu...

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Abstract

The invention relates to a large-flow high-frequency electrohydraulic exciting shock control valve drive system which comprises a large-flow high-frequency electrohydraulic exciting shock valve. The drive system also comprises a main valve end hydraulic cylinder and a transmission, wherein the main valve end hydraulic cylinder is used for driving a valve core to axially slide in a linear way; thetransmission is used for driving the valve core to rotate; the main valve end hydraulic cylinder comprises a cylinder body and a drive piston; the drive piston is fixedly installed at the end part ofthe valve core; the drive piston is used as a boundary in the cylinder body, the cylinder body approaching one side of the valve core is provided with a rod cavity, and the cylinder body at the otherside is provided with a rodless cavity; the rod cavity is communicated with a high-pressure oil box, and the rodless cavity is communicated with the high-pressure oil box by a flow valve; the transmission comprises a hydraulic motor, a drive gear, an idle gear, a driven gear and a gear accelerating mechanism; an output shaft of the hydraulic motor is connected with an input shaft of the gear accelerating mechanism, and an output shaft of the gear accelerating mechanism is connected with the valve core. The invention can increase flows, improve the exciting shock frequency and prevent overloading of a hydraulic system.

Description

technical field [0001] The invention relates to a driving system of a high-flow high-frequency electro-hydraulic excitation control valve. Background technique [0002] There are mainly three types of excitation methods: mechanical, electromagnetic and electro-hydraulic. Compared with the other two methods, the electro-hydraulic excitation method has the characteristics of large excitation power, large thrust, and easy realization of multi-point excitation. It is mainly used in heavy-load and high-power occasions. [0003] The hydraulic exciter used in industrial production mainly generates vibration by controlling the on-off of the fluid with a hydraulic control reversing valve or a servo valve. Due to the limitation of cost performance and application occasions, it is difficult to popularize and apply it in general vibrating machinery. . As a substitute for hydraulic reversing valves or servo valves, Chinese invention patent 00102009.9 discloses a low-cost, high-performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/12F15B15/02
Inventor 阮健白继平邢彤裴翔俞浙青王国良
Owner ZHEJIANG UNIV OF TECH
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