STEERING GEAR BOX OF A RACK AND PINION TYPE, CAPABLE OF SATISFYING A DESIGN CONDITION OF A COMMERCIAL VEHICLE OF A LARGE SHAFT WEIGHT

摘要

PURPOSE: A steering gear box is provided to increase stroke of a tie rod by obtaining limited space.;CONSTITUTION: A steering gear box structure comprises a first gear box(10) and a second gear box(20). The first gear box comprises a pinion and a first rod(11). The pinion receives rotary power of a steering wheel(60) through a steering shaft(61) in order to rotate. The first rod comprises a rack gear interlocked with the pinion in outer periphery in order to operate in right and left directions according to a rotation direction of the steering wheel. The second gear box comprises a second rod(21) and a piston. The second rod is connected to the first rod through a fixing member(40) and is interlocked with the first rod. The piston is operated on the right and left according to supply of fluid pressure of a control valve(30) through a hydraulic line(31) and is connected to the second rod.;COPYRIGHT KIPO 2013;[Reference numerals] (AA,BB) Boot