论文部分内容阅读
随着机械化作业的推广及应用,越来越多的重物搬运应用电动单梁起重机来完成,其造价低、操作方便,维护成本小的特点赢得了广大用户的青睐。然而结构简单的电动单梁起重机的安全保护功能相对偏少,各类事故中所占比例较多的为缓冲止挡装置损坏失效,导致葫芦小车损坏甚至掉落,重物掉落。本方法通过在缓冲止挡装置前加设一道电气开关的保护,有效减少由于缓冲止挡装置失效造成的安全事故的发生。
With the popularization and application of mechanized operation, more and more heavy objects are transported and applied by electric single-girder cranes, which has won the favor of users due to its low cost, convenient operation and small maintenance cost. However, the structure of a simple electrical single-girder crane safety protection function is relatively less than the proportion of various types of accidents more buffer stop device failure failure, resulting in damage or even drop gourd trolley, heavy objects fall. In the method, the protection of an electrical switch is added before the buffer stop device to effectively reduce the occurrence of safety accidents caused by the failure of the buffer stop device.