钢丝绳用楔形接头的选择及应用

Selection and Application of Wedge Joint for Wire Rope

在采用钢丝绳连接或传动的设备中,楔形接头固定钢丝绳端部是继绳夹固定外,应用最多的固定方式,其结构简单,安装方便,性能可靠。一般起重机钢丝绳一端固定在卷筒上,另一端通常采用楔形接头固定在起重机小车架或者吊钩滑轮组上。针对楔形接头在起重机械行业的应用情况进行分析讨论,提出如何正确选用钢丝绳楔形接头,如果标准楔形接头无法满足使用要求时,采用非标楔形接头应注意哪些事项。总结了楔形接头在安装使用过程中存在的一些不合理或者不规范的情况,易造成钢丝绳断丝、断股、楔形接头损坏等情况出现。在选用楔形接头时,尤其是连接重要用途钢丝绳时,在满足安装方式、强度等条件的情况下,要注意钢丝绳在楔形接头内的安装方式,按照楔形接头的工作原理,钢丝绳应正确引入楔形接头内,保证钢丝绳、楔形接头等相关件的受力方向和有效接触形式,避免错误的安装方式导致相关件的过早疲劳破坏或失效,造成设备的故障或者存在安全隐患。

In the equipment connected or driven by steel wire rope,the wedge joint is used to fix the end of steel wire rope,which is the most widely used fixing method besides the rope clamp.It has simple structure,convenient installation and reliable performance.In the equipment connected or driven by steel wire rope,the wedge joint is used to fix the end of steel wire rope,which is the most widely used fixing method besides the rope clamp.It has simple structure,convenient installation and reliable performance.Generally,one end of the crane wire rope is fixed on the drum,and the other end is usually fixed on the crane trolley frame or hook pulley block with a wedge joint.This paper mainly analyzes and discusses the application of the wedge joint in the hoisting machinery industry,and proposes how to correctly select the steel wire rope wedge joint.If the standard wedge joint cannot meet the use requirements,what matters should be paid attention to when using non-standard wedge joint.At the same time,it summarizes some unreasonable or nonstandard conditions existing in the installation and use of wedge joints,which are easy to cause wire rope breakage,strand breakage,wedge joint damage,etc.When selecting wedge joints,especially when connecting wire ropes for important purposes,pay attention to the installation method of wire ropes in wedge joints under the condition that the installation method,strength and other conditions are met.According to the working principle of wedge joints,wire ropes should be correctly pulled into wedge joints to ensure the stress direction and effective contact form of wire ropes,wedge joints and other related parts to avoid premature fatigue damage or failure of related parts caused by incorrect installation methods,resulting in equipment failure or potential safety hazards.