受流装置改造分析

Retrofit Analysis of Current Receiving Device

文章主要从结构、技术特点及升降弓动作原理方面阐述并分析了两种不同的受流装置。一种是QG-100型受电弓,它主要是通过空气弹簧的充气来实现升弓、排气来实现降弓;另一种是PT7203-M型受电弓,它主要是通过主弹簧拉力来实现升弓、气缸充气推动来实现降弓。

The article mainly described and analyzed two different current receiving devices, which have different structures, technical characteristics and action principles of the lifting bow. One is the QG-100 pantograph, it is mainly through the inflation of the air spring to achieve the bow lift and exhaust to achieve the bow drop. The other is the PT7203-M type pantograph, it is mainly achieved through the main spring tension to raise the bow, and the cylinder is charged to push the bow to achieve the lower bow.