telescoping cylinder

the mapping relation between the telescoping cylinder and the rotation of booms is obtained, so the control of booms are performed. 2.

得到了油缸伸缩运动和臂架变幅运动之间的映射关系，实现了臂架变幅运动的制约。

This paper is devoted to researching the telescoping system with single cylinder and pinning, which is the crucial technique by which the high-performance, lower prices big-ton crane can be made.

本文以研发适合中国国情的、中价位、高性能的大吨位轮式起重机所急需攻克的关键技术之一&单缸插销式自动伸缩臂控制系统作为研究对象。

telescoping of the boom is carried out through telescoping cylinder and steel cable, and all booms telescope simultaneously.

吊臂的伸缩是通过伸缩油缸和钢丝绳进行，各伸缩臂同步伸缩。

The structure of the derrick is triple-section telescoping structure, substructure is parallelogram structure, can be lifted by hydraulic cylinder.

井架采用三节伸缩式结构，底座采用平行四边形结构，能用液缸整体起升。