The invention discloses a folding jib type lorry-mounted crane multi-cylinder sequential telescopic hydraulic system, and relates to the field of engineering, in particular to the folding jib type lorry-mounted crane multi-cylinder sequential telescopic hydraulic system. The folding jib type lorry-mounted crane multi-cylinder sequential telescopic hydraulic system which is compact in structure andstable is proposed. The system involves a first hydraulic cylinder, a first central pipe, a primary two-position two-way reversing valve, a first one-way valve, a second hydraulic cylinder and a three-position four-way reversing valve, wherein one end of the first central pipe is fixedly connected with the bottom of a cylinder body of the first hydraulic cylinder, the other end of the first central pipe extends into a central hole I of a first piston rod of the first hydraulic cylinder and is connected with the first piston rod in a sliding seal mode, and the first central pipe and another first central pipe are hollow pipe bodies with one ends closed. The system has the characteristics of being compact in structure, stable and the like.
一种折臂式随车起重机多缸顺序伸缩液压系统。涉及工程结领域,尤其是用于一种折臂式随车起重机多缸顺序伸缩液压系统。提出一种结构紧凑、液压系统稳定的一种一种折臂式随车起重机多缸顺序伸缩液压系统。包括第一液压缸、第一中心管、一级二位二通换向阀和第一单向阀、第二液压缸和三位四通换向阀;所述第一中心管的一端与所述第一液压缸的缸体的底部固定连接,另一端伸入所述第一液压缸的第一活塞杆的中心孔一内,与所述第一活塞杆滑动密封连接;所述第一中心管和第一中心管分别为一端封闭的空心管体。本发明具有结构紧凑、液压系统稳定等特点。
Folding jib type lorry-mounted crane multi-cylinder sequential telescopic hydraulic system
一种折臂式随车起重机多缸顺序伸缩液压系统
2020-07-24
Patent
Electronic Resource
Chinese
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