新型起重机械吊钩组滑轮保持装置

Holding device of hook block of novel hoisting machinery

大型起重机械的起升机构吊钩组中,多采用弹性挡圈用于保持滑轮与轴承之间的相对位置,但在靠内侧的弹性挡圈发生缺陷时,对其进行更换的难度往往较大。为解决这种实际生产中的不足,开发出一种新型起重机械吊钩组滑轮保持装置,该装置可实现便捷拆装,且可以克服吊钩组滑轮之间间隙较小的工况,实现替代更换缺陷弹性挡圈。并在工程实践中得到证明,新型起重机械吊钩组滑轮保持装置结构可靠,机械性能更优,维修更便捷。

The hook block of the hoisting mechanism of large hoisting machinery uses circlip to keep the pulley and bearing at their positions,so when there is a defect occurs in the inner circlip,it is often difficult to replace it.In order to solve such deficiency in actual production,a new type of holding device for pulleys of the hook block of hoisting machinery is developed,which can realize quick disassembly and installation,overcome working condition of small gap between the pulleys of hook blocks,and allow defective circlips to be replaced.Moreover,applications in engineering show that the holding devices for pulleys of the hook block of novel hoisting machinery has reliable structure,better mechanical performance and more convenient in maintenance.