TRACK MACHINE SPRING DISENGAGEMENT DEVICE Russian patent published in 2003 - IPC

FIELD: railway transport. SUBSTANCE: invention relates to devices designed for providing stability of track machines. Proposed device contains levers hinge- mounted for turning in vertical plane. Each lever carries pressure roller on one end to rest of support plate. Levers are coupled with drive in form of hydraulic cylinders. Levers are mounted on overspring beam, and support plates are arranged on bogie side frames. Interconnected spaces of hydraulic cylinders used to set levers in traveling position are coupled with hydraulic distributor through pilot-controlled check valves. Spaces of hydraulic cylinders used to set levers into working position are also connected with hydraulic distributor through pilot-controlled check valves. Hydraulic cylinders are interconnected at right and left sides of bogie. EFFECT: improved stability of track machine. 4 dwg