一、门式起重机的用途水电站用门式起重机(以下简称门机)主要用来起吊闸门,也可做其它的零星起吊工作。在进水口坝段用它起吊工作闸门、检修闸门和拦污栅;在溢流坝段用它起吊溢洪道的工作闸门(也可以改用固定卷扬机)和检修闸门;在坝后尾水管处用它起吊尾水闸门。用来起吊尾尔闸门的起重量较小,一般无小车运行机构,叫作单向门机。而进水口和溢洪道所用的门机多数有小车运行机构,叫作双向门机。 First, the use of gantry crane Hydropower used gantry crane (hereinafter referred to as door machine) is mainly used to lift the gate, but also do other sporadic lifting work. In the intake section of the dam it is used to lift the working gate, maintenance gate and trash rack; use it in the spillway spillway work gate (also can use fixed winch) and maintenance gate; Lift tailgate. Tail gate used to lift the lifting of the smaller, generally no car operating agencies, known as the one-way door machine. The inlet and spillway door machine used most of the car operating agencies, known as two-way door machine.