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Crank arm type aerial work vehicle hydraulic system

A technology for aerial work vehicles and hydraulic systems, which is applied to fluid pressure actuation devices, lifting devices, servo motors, etc., and can solve problems such as difficult maintenance and scattered layout.

Active Publication Date: 2020-03-31
HUAIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide an articulating arm type aerial work vehicle hydraulic system with a centralized layout and easy maintenance to solve the problem of difficult maintenance caused by the scattered layout of the existing hydraulic system of aerial work vehicles.

Method used

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  • Crank arm type aerial work vehicle hydraulic system
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  • Crank arm type aerial work vehicle hydraulic system

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Embodiment Construction

[0036] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of ...

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Abstract

The invention relates to a crank arm type aerial work vehicle hydraulic system. A rod cavity of a lower amplitude-variable oil cylinder of the crank arm type aerial work vehicle hydraulic system communicates with a rodless cavity of a medium amplitude-variable oil cylinder through a first two-way balance valve and a second two-way balance valve, and a communication oil path of the first two-way balance valve and the second two-way balance valve communicates with an oil inlet of an auxiliary synchronization valve; a first oil control port of the first two-way balance valve communicates with a rod cavity of the medium amplitude-variable oil cylinder through the second two-way balance valve, and a communication oil path of the first oil control port and the second two-way balance valve communicates with an oil outlet of the auxiliary synchronization valve; a second oil control port of the second two-way balance valve communicates with a rodless cavity of a lower amplitude-variable oil cylinder through the first two-way balance valve; and the auxiliary synchronization valve includes an overflow valve and a throttle valve which are connected in parallel. According to the crank arm typeaerial work vehicle hydraulic system, the auxiliary synchronization valve enables the lower amplitude-variable oil cylinder and the medium amplitude-variable oil cylinder to move at the same time, sothat the crank arm type aerial work vehicle hydraulic system is compact in layout and easy to maintain.

Description

technical field [0001] The invention relates to the technical field of aerial work equipment, in particular to a hydraulic system of an articulating arm type aerial work vehicle. Background technique [0002] The articulating arm type aerial work vehicle is a lifting device used for high-altitude operations. It can cross obstacles for high-altitude operations. When the platform is lifted to any position, it can work while walking. It is widely used in municipal, electric power, street lights, advertising, communications, and photography. , gardens, transportation, docks, airport ports, large industrial and mining enterprises and other industries installation and maintenance and climbing operations. [0003] At present, the hydraulic system of the articulated boom aerial work vehicle has a scattered layout, which leads to the problem that the hydraulic system is not easy to maintain. Contents of the invention [0004] Based on this, it is necessary to provide a hydraulic s...

Claims

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Application Information

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IPC IPC(8): B66F11/04F15B11/16
CPCB66F11/044F15B11/16
Inventor 何祥华杨汉键胡靖
Owner HUAIHUA UNIV
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