STARTING METHOD FOR ROVOLUTION TRANSMISSION DEVICE TRANSMITTING REVOLUTION OF PLURALITY OF HYDRAULIC MOTORS TO BODY OF REVOLUTION VIA GEAR DEVICE AND STARTER THEREOF

摘要

PROBLEM TO BE SOLVED: To start a body of revolution without shock by enhancing set pressure of a driving circuit of a hydraulic motor which is slightly revolved in the normal revolution direction of the body of revolution more than pressure necessary for the starting of the body of revolution, enhancing remaining set pressure of the driving circuit of the hydraulic motor while the body of revolution is accelerated and accelerating the body of revolution. ;SOLUTION: Pressure is enhanced in order of set pressure of a closed hydraulic circuit 16 of a hydraulic motor 5 imparting revolution in the normal revolution direction to a body of revolution at the time of preliminary revolution and set pressure of a closed hydraulic circuit 15 of the hydraulic motor 4 revolving the body of revolution in the reverse direction at the time of preliminary revolution. A gear 9 imparted to the hydraulic motor 5 revolving the body of revolution in the normal revolution direction starts to revolve from a state that the gear 9 comes into contact with the gear teeth of an internal teeth gear 10 and the body of revolution starts without shock. When the teeth of a gear 8 of the hydraulic motor 4 which is revolved in the reverse direction during acceleration of the body of revolution eliminates a gap with the internal teeth gear and comes into contact with a tooth flank in the front of revolution, set pressure of a circuit of the hydraulic motor 4 is enhanced, also the hydraulic motor 4 participates in the driving of the body of revolution and the body of revolution 1 revolves by increased acceleration torque by all the hydraulic motors 4, 5.;COPYRIGHT: (C)1999,JPO