The invention relates to the field of engineering machinery, and discloses a balance valve group, an aerial work platform and a variable amplitude hydraulic control system.The balance valve group comprises a first balance valve, a second balance valve, a first oil source connector and a second oil source connector, and the first oil source connector and the second oil source connector are used for being connected with a hydraulic oil source. The first balance valve is communicated with the first oil source connector through a first oil way, the second balance valve is communicated with the second oil source connector through a second oil way, a control oil port of the first balance valve is communicated with the second oil way through a first control oil way, and a control oil port of the second balance valve is communicated with the first oil way through a second control oil way; the first damping unit is arranged on the first control oil way, the second damping unit is arranged on the second control oil way, and the partial pressure oil way is communicated with the first oil way and the second oil way. According to the invention, the problem of safety accidents caused by violent shaking of the luffing mechanism during luffing is effectively solved.
本发明涉及工程机械领域,公开了一种平衡阀组、高空作业平台及其变幅液压控制系统,平衡阀组包括第一平衡阀、第二平衡阀以及分别用于与液压油源连接的第一油源接口和第二油源接口,第一平衡阀通过第一油路与第一油源接口连通,第二平衡阀通过第二油路与第二油源接口连通,第一平衡阀的控制油口通过第一控制油路与第二油路连通,第二平衡阀的控制油口通过第二控制油路与第一油路连通,平衡阀组还包括第一阻尼单元、第二阻尼单元以及分压油路,第一阻尼单元设置于第一控制油路上,第二阻尼单元设置于第二控制油路上,分压油路分别与第一油路和第二油路连通。本发明有效解决变幅机构变幅时剧烈抖动而导致安全事故发生的问题。
Balance valve group, aerial work platform and variable amplitude hydraulic control system of aerial work platform
平衡阀组、高空作业平台及其变幅液压控制系统
2022-11-29
Patent
Elektronische Ressource
Chinesisch
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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