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行走限位是塔式起重机不可缺少的安全保护装置。目前,行走限位是通过安装在塔机上的行程限位开关碰撞设置在道轨两端的档块来实现的。但档块有时丢失,行程限位开关经常有损坏失灵的情况发生,若司机不注意班前认真检查,会造成危险。下面就据工作中的经验和观察,介绍一种新的行走限位安全保护装置,供读者参考。 1.结构原理如图所示。此装置有一螺杆1通过联轴节10直接与塔机一主动行走轮(或驱动齿轮)11连接,在塔机沿轨道左右
Travel limit is an indispensable safety protection device for tower cranes. At present, the travel limit is achieved by the impact limit switches installed on the tower crane that are set at the ends of the rail. However, the stalls are sometimes lost, and the travel limit switch is often damaged and malfunctioning. If the driver does not pay attention to the class and carefully inspect it, it will cause danger. According to the experience and observations in the work, the following introduces a new safety device for walking limit protection for readers’ reference. 1. The structural principle is shown in the figure. In this device, a screw 1 is directly connected with a tower crane and an active travel wheel (or drive gear) 11 through a coupling 10, and is arranged along the track of the tower crane.