8.1.6 Worm gear steering
In case if the steering gear is of worm type, it consists of a Hindley worm and an angular sector on which the roller is mounted. A shaft is connected to the corner sector, and a tie-rod arm is attached to the shaft. The movement of the tie-rod arm is transmitted to the steering trapezoid, which consists of the steering rods. The rods, while moving, turn the wheels in one direction or another. The arrangement of the steering gear is shown in Figure 8.2. Nowadays cars with the worm-type steering gear meet less and less often.
Figure 8.2 Worm-type steering gear.
Worm-type gear is a type of gear in which there is a worm. This is a threaded part of the bolt, but only with many times increased turns, and a gear, which is engaged with this worm.
The Hindley worm is named so, because of its shape: its profile is concave, as shown in Figure 8.3.
Figure 8.3 Appearance of Hindley worm.
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