Open type abrasive belt rail high-speed grinding vehicle

The invention provides an open type abrasive belt rail high-speed grinding vehicle. The open type abrasive belt rail high-speed grinding vehicle comprises working vehicles and power vehicles. A plurality of open type abrasive belt grinding trolleys are hung on each section of working vehicle and each section of power vehicle. Each open type abrasive belt grinding trolley comprises a traction device, a lifting device, a walking device, an abrasive belt winding structure, a driving force replacement structure, a guide structure, a pressing structure and the like. Abrasive belt grinding units are connected with the working vehicles through the traction devices and the lifting devices. An abrasive belt transmission mechanism, a driving force replacement mechanism, a guide mechanism and a pressing mechanism form the whole grinding trolley. According to the open type abrasive belt rail high-speed grinding vehicle, rail grinding is achieved in an open type abrasive belt grinding mode, the train walking speed serves as the abrasive particle cutting speed, high-speed grinding work can be achieved, and the grinding efficiency is improved. The available abrasive belt length in the grinding units can be prolonged through an open type structure. In consideration with elastic grinding and the contact mode of an abrasive belt, rail grinding target profiling can be achieved through mode change of a contact component.