Steering Gear Boxes;
The steering gears converts the rotary motion of the steering
wheel into the to-and-fro motion of the link rod of the steering linkages.
Moreover it also provides necessary leverage so that the driver is able to
steer the vehicle without fatigue.
are various types of steering gear boxes are available in automobile.
Worm and Wheel steering gear box,
Cam and double roller steering gear box,
Worm and nut steering gear box,
Recalculating ball type steering gear box,
Rack and pinion steering gear box,
In automobiles, power steering (also known as power assisted
steering (PAS) or steering assist system) helps drivers steer by augmenting
steering effort of the steering wheel.
Hydraulic or electric actuators add controlled energy to the
steering mechanism, so the driver needs to provide only modest effort
regardless of conditions. Power steering helps considerably when a vehicle is
stopped or moving slowly. Also, power steering provides some feedback of forces
the front wheels to give an ongoing sense of how the wheels are interacting
with the road; this is typically called "rοad
Representative power steering systems for cars augment
steering effort via an actuator, a hydraulic cylinder, which is part of a servo
system. These systems have a direct mechanical connection between the steering
wheel and the linkage that steers the wheels.