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全地面起重机起重主臂大都采用多节箱型臂结构,在伸缩臂伸出较长时,若臂架下绕度比较大,将导致起重机的起重性能大大降低。为了减少臂架下绕度,提高起重性能,大吨位全地面起重机,都设置了超起机构。本文介绍1例超起机构液压系统的改进方法。1.工作原理(1)机械传动系统某型号全地面起重机主要由底盘1、转台2、起重主臂3、超起支架4、超起拉板5、超起卷扬6、
All terrain crane main boom with multi-section box arm structure, the telescopic arm extended longer, if the arm around the relatively large, will lead to significantly reduce the crane’s lifting performance. In order to reduce under arm boom, improve lifting performance, large tonnage all-terrain cranes, have set up a super-agencies. This article describes a case of super-mechanism hydraulic system improved method. 1. Working principle (1) Mechanical transmission system A model of all-terrain crane mainly consists of chassis 1, turntable 2, lifting the main boom 3, super-bracket 4, super pull plate 5, super hoist 6,