8.1.8 Steering drive
The steering gear connection is a set of rods and hinged joints that connect and transmit movements from the steering gear to the steering knuckles of the steered wheels.
If we return to the worm-type steering gear, then in the classic layout there are three rods - one central and two side. They are connected via hinged joints. The rods of the steering gear in this case is called the steering trapezoid. The design of the steering trapezoid in geometric terms is such that it provides rotation of the steered wheels at different angles (see the "Chassis" chapter).
In case of the installation of the rack-and-pinion steering gear, everything is a little easier Steering rods that transfer movement on steering knuckles of wheels are fastened on both sides to a steering rack. The advantages are obvious, because the fewer the various intermediate links, the more reliable and accurate the whole mechanism.
Note
In order to prevent dirt and dust from getting inside the rack-and-pinion steering gear housing, so-called dust caps (corrugated rubber covers) are installed on both sides.
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