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Main structure types of steering gear
The use of the automobile steering machine actually had a lot of types, such as gear rack, circular ball, and variants of the first two types, but our daily contact is more gear rack and the ball structure, especially the basic mainstream passenger cars at present.
Rack and pinion structure
As the name suggests, the gear rack is through gear and rack, the steering axis of the circular motion power conversion to horizontal tie rod linear motion force structure, which is currently the most common.
The structure of the gear rack is relatively simple, the cost is low, the volume and weight are not large, and the power assisted system is also convenient to combine, so the utility model is widely used in the passenger car. (this is in the form of Mcpherson and suspension, almost become a Tiger Balm “ ”) steering gear rack structure more directly, more in line with the pavement as the flagship models.
Recirculating ball structure
Recirculating ball steering structure is a more traditional way, say simply, is in the worm structure is added between the ball and the resistance is reduced, the circular motion changes for horizontal movement, as the ball rolling in the thread, as repeated, so the name on the global structure.
In fact, the recirculating ball steering machine, in the absence of steering power, is less portable because of its less resistance. But with the whole suspension bridge, because too bulky, it gradually in many car was discarded, but because it is strong and durable, to emphasize the use of bad road off-road vehicle, or very suitable choice. However, many models, such as Land Rover guards, Ford F150 this way, even if the use of recirculating ball steering, still use the electric power, but also visible, electric power steering in the future there are signs of unity.
