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Gas-liquid ejection servo actuation system

A servo actuation system, electro-hydraulic servo valve technology, applied in servo motors, servo motor components, fluid pressure actuation devices, etc., can solve the problems of difficult component selection and large oil flow requirements.

Active Publication Date: 2021-09-07
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional gas-liquid ejection device has a large demand for oil flow, which makes the selection of components difficult.

Method used

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0020] Concrete technical scheme of the present invention is as follows:

[0021] Such as figure 1 As shown, the gas-liquid ejection servo actuation system provided by the present invention includes a proportional reversing valve 1, a hydraulic motor 2, a booster pump 3, a relief valve 4, a one-way valve 5, a safety valve 6, a first stop valve 7.1, The second shut-off valve 7.2, the third shut...

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Abstract

The invention belongs to the field of ejection systems, and discloses a gas-liquid ejection servo actuation system. The system comprises a proportional reversing valve, a hydraulic motor, a booster pump, a bag partition type energy accumulator, an electro-hydraulic servo valve, a single-rod hydraulic cylinder, a first pressure sensor, a second pressure sensor, a first pressure gauge, a second pressure gauge, a first travel switch, a second travel switch and multiple stop valves. The proportional reversing valve controls the rotating speed of the hydraulic motor and is used for controlling the pressure of oil output by the booster pump. The bag partition type energy accumulator intersects with an oil way of the booster pump and is connected with an oil inlet of the electro-hydraulic servo valve. The electro-hydraulic servo valve is connected with and controls the single-rod hydraulic cylinder. The hydraulic motor is controlled through the proportional reversing valve, and therefore the booster pump is driven to pressurize oil, and more electrical connections brought by motor and booster pump combination are avoided; and oil is ejected after being pressurized, the power-to-weight ratio of the system is increased, the system flow is reduced, and the component type selection difficulty is reduced.

Description

technical field [0001] The invention belongs to the field of ejection systems, and in particular relates to a gas-liquid ejection servo actuation system. Background technique [0002] In recent years, the use of ejection servos has increased. Traditional ejection devices mainly include mechanical ejection devices and pneumatic ejection devices. The mechanical ejection device has a complex structure and cannot be adjusted in time according to changes. Pneumatic ejection devices have high requirements on energy and sealing, and the energy conversion efficiency is low. Therefore, the gas-liquid ejection device is developed and applied as a new ejection device. However, the traditional gas-liquid ejection device has a large demand for oil flow, which makes the selection of components more difficult. Contents of the invention [0003] In view of the above problems, the present invention improves the structure of the traditional gas-liquid ejection servo actuation system, dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/02F15B11/04F15B11/08F15B13/04
CPCF15B1/02F15B11/04F15B11/08F15B13/04
Inventor 聂勇劳振华郭启萌陈正唐建中
Owner ZHEJIANG UNIV
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