4、均用多点牵引,可实现全程密贴以及全程夹异物检查,确保列车运行安全;采用三相异步电动机故障少、寿命长。 关键词 :道岔;液压转辙机;转换系统;17陕西铁路工程职业技术学院毕业设计(论文)AbstractTurnout and conversion system is an essential foundation for rail transportation equipment, it is also a weak link line, the need for expertise and facilities to ensure the safety of thro
5、ugh trains. Lock switch and the conversion is directly related to the key to traffic safety equipment. Switch into manual manipulation, electric two ways. Is the operator to manually switch handle in the field through direct manipulation of the transformation and locking switch, which is
6、 inefficient and labor-intensive, can not meet the requirements of railway modernization. Are manually focus with the non-modificationof the food chain was gradually reduced. Electrical method pointer from the various types of conversion and locking switch is easy to focus on the manipul
7、ation of automation. Switch to reliably switch the location of the conversion to change the direction of switch opening, tip locking switch tracks, reflecting the position switch. Switch is an important signal of the infrastructure to ensure its safety, to improve transpo