Design Of Vehicles Based On Changing Pinion Over The Rack

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Design of vehicles based on "changing pinion over the rack" steering mechanism Abstract- In this paper, the results of the work on the development and implementation of steering mechanism is presented. The proposed approach is to construct a vehicle with 90 degrees turning wheels through "changing pinion over the rack" steering mechanism. The steering mechanism uses rack and pinion in defined gear ratios. The most conventional and general steering arrangement is to turn the front wheels using a hand operated steering wheel which is positioned in front of the Driver. The steering column, which contain an universal joint which is part of the collapsible steering column which is designed to allow it to deviate from a straight line according…show more content…
While for rotating the wheel, they used two separate Geared motors. Convertible four wheel steering with three mode operation- This concept was based on insertion and removal of lock nuts consisting of a steering setup, spur gears, bevel gears. The three modes were Front wheel steer, Both front and rear wheel steer in same direction ,Both wheels in opposite direction. When the lock nut is removed, the steering operation is carried out in normal condition. That is only front wheels steer. But when the lock nut is inserted, the other two modes can be used. When the gear arrangement is pushed to one position, the spur gears get engaged and the steering of rear wheel is ensured and is in same direction as that of the front wheels. When the gear arrangement is moved to other side, the spur gear disengages and the bevel gear gets engaged. Due to bevel gear arrangement, the rear wheel steers in opposite direction to the front wheel. This results in third mode steering. Linkage based steering mechanism- Linkages are employed to transmit steering from steering wheel to wheels, Here a set of diagonal wheels are selected in which power and steering both systems are attached. In our project “Design of vehicles based on "changing pinion over the rack" steering mechanism” we are using separate mechanisms for transmitting of power and steering the vehicle and there will be two modes of operation. Introduction- The most conventional

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