Wheel-like device for steering the direction of travel of a car. Its function is to convert the driver’s force on the edge of the steering wheel into torque and then transfer it to the steering shaft. The gear system introduced by the steering wheel between the driver and the wheels is flexible and well isolated from the severe vibrations from the road. Not only that, a good steering wheel system can give the driver a feeling of being intimate with the road.
1. The skeleton is generally zinc alloy or aluminum alloy. Some manufacturers are trying to use cheaper and lighter magnesium alloys. The skeleton is produced by die casting. A small number of manufacturers are still using steel sheet metal as the skeleton, and the structure is complicated. 2. Foaming, foaming material is generated in the foaming machine, and the skeleton is fixed in the foaming machine during production. The combination of 1 and 2 is the simplest steering wheel. 3. Some steering wheels require surface stitching. Generally, sewing is done by workers in China. 4. Some steering wheels require wood. Use special machines to stack the wood chips and paint them. 5. Some steering wheel wood is replaced with fake wood. The fake wood is generally injection molded with PP, ABS and other plastics, and then watermarked. 6. There will be mounting buckles or screw holes on the steering wheel corresponding to the main driving airbag DAB. 7. Some steering wheels require horn contacts. The simpler way is to press the horn contacts into the skeleton. Another way is to make a horn contact module and integrate some electrical wiring harnesses and circuit boards on it. 8. Some steering wheels require switches, which are mainly located on the spoke shell or the main airbag. The functions are generally radio, acceleration and deceleration, cruise, sound, and answering calls. The steering wheel must provide not only a mounting clip, but also a wiring harness interface. 9. There is usually a multi-function switch module or paddle shift under the steering wheel. At this time, the electrical connection needs to be considered.
The steering wheel is generally connected to the steering shaft through a spline, and its function is to convert the force applied by the driver to the edge of the steering wheel into torque and then transfer it to the steering shaft. When steering with a larger diameter steering wheel, the driver’s hand force on the steering wheel can be smaller. The steering transmission shaft as a connection between the steering gear and the steering shaft is conducive to the universalization of the steering gear, compensates for errors in manufacturing and installation, and makes the installation of the steering gear and steering wheel more reasonable on the entire vehicle.