A hydraulic system for erecting a rocket launching vehicle with negative load adjustment function and its adjustment method

A technology for rocket launching and hydraulic systems, which is applied in the direction of rocket launching devices, fluid pressure actuation system components, fluid pressure actuation devices, etc., can solve problems such as negative load stalls, and achieve the effects of reasonable settings, reliable speed, and simple structure

Active Publication Date: 2022-05-06
BEIJING ONESPACE TECH CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case that the hydraulic system loses power due to an accident, when the oil control port of the hydraulic holding element in the system does not have enough pressure to open, the negative load will be kept at a certain position (such as a hydraulically driven rocket launcher, a crane, etc.) Point the vertical arm erecting process, tower crane jacking mechanism jacking process, etc., any position under negative load conditions, such as accidental stop), if the hydraulic holding element is opened in an abnormal way, it is very likely to cause a negative load stall and cause an accident

Method used

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  • A hydraulic system for erecting a rocket launching vehicle with negative load adjustment function and its adjustment method

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Embodiment Construction

[0017] The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 Shown: a rocket launch vehicle vertical hydraulic system with negative load adjustment function, including: lifting system, slow down speed control system; the slow down speed control system is installed in parallel on the lifting system through pipelines and pipe heads;

[0019] The lifting system includes: fuel tank assembly 13, motor oil pump group 2, check valve 3, reversing valve 5, hydraulic pressure retaining element 11, actuator 9; the fuel tank assembly 13, motor oil pump group 2, and actuator 9 pass through the pipe The hydraulic circuit and the pipe head constitute a hydraulic circuit, and they are power-connected to each other; the check valve 3, the reversing valve 5, and the hydraulic holding element 11 are sequentially arranged between the motor oil pump unit 2 and the actuator 9;

[002...

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Abstract

A rocket launching vehicle erecting hydraulic system and adjustment method with a negative load adjustment function, the purpose of which is to safely, quickly and conveniently realize the manual adjustment and withdrawal of the negative load of the hydraulic system under the condition of no power, and limit the withdrawal speed; The hydraulic system includes: a lifting system, a slow-down speed regulating system; the slow-down speed regulating system is installed on the lifting system in parallel through pipelines and pipe heads; the lifting system includes: a fuel tank assembly, a motor oil pump group, a one-way valve, reversing valve, hydraulic retaining element, and actuator; the fuel tank assembly, motor oil pump unit, and actuator form a hydraulic circuit through the pipeline and pipe head; the one-way valve, reversing valve, and hydraulic retaining element are arranged in sequence Between the motor oil pump group and the actuator; the slow down speed regulation system includes: hydraulic branch circuit, stop valve, speed control valve; the hydraulic branch circuit is arranged in parallel on the liquid return pipeline in the hydraulic circuit of the lifting system; the The cut-off valve and the speed regulating valve are sequentially arranged on the hydraulic branch along the liquid return direction.

Description

technical field [0001] The invention relates to the technical field of rocket launch vehicles, in particular to a vertical hydraulic system and an adjustment method of a rocket launch vehicle with a negative load adjustment function. Background technique [0002] In the vertical hydraulic system of the existing rocket launching vehicle, hydraulic pressure is used to maintain the negative load. In the case that the hydraulic system loses power due to an accident, when the oil control port of the hydraulic holding element in the system does not have enough pressure to open, the negative load will be kept at a certain position (such as a hydraulically driven rocket launcher, a crane, etc.) During the lifting process of the vertical arm, the lifting process of the tower crane jacking mechanism, etc., any position under negative load conditions such as accidental stop), if the hydraulic holding element is opened in an abnormal way, it is very likely to cause a negative load stall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/08F15B13/01F15B13/02F15B13/04F15B21/041F41F3/04
CPCF15B11/08F15B13/02F15B13/01F15B13/027F15B13/0416F15B21/041F41F3/04F15B2211/20515F15B2211/20576
Inventor 王力杨远正舒畅马超
Owner BEIJING ONESPACE TECH CO LTD
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