Steering wheel - wheel-like device that controls the direction of travel.
A wheel-like device for steering an automobile, ship, or aircraft. Its function is to convert the force exerted by the driver on the edge of the steering disc into torque and then transmit it to the steering shaft.
The first cars used a rudder to control driving. The violent vibration generated by the car is transmitted to the driver, increasing the difficulty of controlling the direction. When the engine was installed in the front of the car, due to the increase in weight, the driver could no longer use the rudder to drive the car. The new design of the steering wheel was born, which introduced a flexible gear system between the driver and the wheels, which was well insulated from the violent vibration of the road. Not only that, a good steering system can also bring the driver a sense of intimacy with the road.
function
The steering wheel is generally connected to the steering shaft by splines, and its function is to convert the force exerted by the driver on the edge of the steering disc into torque and then pass it to the steering shaft. When steering with a larger diameter steering wheel, the driver can exert less hand force on the steering wheel. The steering shaft as a connection between the steering gear and the steering shaft is conducive to the universality of the steering gear, compensates for the errors generated during manufacturing and installation, and makes the installation of the steering gear and steering disc on the vehicle more reasonable.
Fault diagnosis
Driving at a speed of 15 kilometers per hour on the relatively open road, so that when driving, the steering wheel should be rotated to the left and right, to check whether the steering wheel is flexible, there is no positive force, and whether the steering wheel vehicle will run off.
emergency
The so-called emergency refers to the steering wheel is out of control or the steering wheel is not controlled, the driver in the steering wheel when the front wheel does not move, the steering wheel can not function again.
The cause of steering loss may be because the vehicle is running too fast, fatigue, rain and snow road slippery, poor condition, etc., sometimes the steering wheel steering mechanism in the parts fall off, damage, stuck, will also make the steering mechanism suddenly out of control.
The correct way to deal with runaway steam direction is:
1, the driver should not panic, should immediately gently release the accelerator pedal, so that the motor vehicle in low speed driving, uniform and hard pull the hand brake;
2, if the speed is significantly decreased, then to step on the foot brake, so that the vehicle gradually stopped. If the vehicle is at high speed, especially when the front and rear wheels are not in a straight line, the hand brake should be used first to slow down, and then the emergency brake should be stepped on;
3, at this time, also give other vehicles and pedestrians with emergency signals, such as opening emergency flashing lights, honking horns, gestures, etc. Emergency braking must not be applied immediately to avoid rollover.
4, also can not slide or step on the clutch, so that you can not use the engine to contain the power to slow down.
5, for the vehicle equipped with power steering, if it is suddenly found that the steering is difficult, or the engine suddenly shuts down, the driver can also achieve steering, but the operation is very laborious, then it is necessary to calmly respond to the situation and drive carefully.
Common fault
Fault 1. The steering wheel is locked.
The steering wheel won't turn, the keys won't turn, what's going on? Many new owners have encountered such problems. In fact, the reason is very simple, after the vehicle is turned off, the steering wheel will automatically lock, which is a simple anti-theft function. This situation is not encountered every time the ignition, generally after the key to start the vehicle, the steering wheel will automatically unlock, which many owners do not understand. However, sometimes the steering wheel is placed at an Angle when the car is parked, and this Angle is just to turn the key ignition and not unlock it. At this time, the owner should gently twist the key with the right hand, gently turn the steering wheel with the left hand, and the steering wheel will naturally unlock.
Fault 2, the steering wheel scratched.
Operation first to remove impurities and rust, paint must be a small amount of layers, a thin layer, dry solid and then apply the second layer, until the surrounding paint level, after repair to wait a day after the paint hardening to wash wax. There is a very simple and immediately effective trick to repair small scratches: fill small scratches with toothpaste. This is especially true if your car is painted white. Lightly apply the toothpaste to the light scratch and use a soft cotton cloth to rub in a counterclockwise circle. This can not only reduce the scratch mark, but also avoid the long-term erosion of air on the car paint injury. If the scratches of the body are deep and the area is large, you must enter a professional shop.
Fault 3. Steering wheel shakes.
When the driving speed is between 80 and 90 kilometers per hour, the steering wheel shakes, and the speed exceeds 90 kilometers per hour. Most of this situation is caused by tire deformation or vehicle transmission system, it is necessary to check the positioning Angle of the front wheel and the front bundle to meet the requirements, such as misalignment should be adjusted; Set up the front axle to test the wheel, check the static balance of the wheel and whether the tire deformation is too large, such as deformation should be replaced.
Steering wheel shake
Car steering wheel shaking is one of the most common vehicle faults in our daily driving process, especially when the vehicle is traveling between 50,000 kilometers and 70,000 kilometers, this phenomenon is most likely to occur. Steering wheel shaking, body resonance will lead to unsafe driving. The following are several common cases of steering wheel shaking and treatment methods:
1, when the car runs between 80 km and 90 km per hour, the steering wheel shakes, and the speed exceeds 90 km per hour.
Most of this situation is caused by tire deformation or vehicle transmission system, it is necessary to check the positioning Angle of the front wheel and the front bundle to meet the requirements, such as misalignment should be adjusted; Set up the front axle to test the wheel, check the static balance of the wheel and whether the tire deformation is too large, such as deformation should be replaced.
2, the vehicle is normal on the flat road, but when it encounters the pothole road, the steering wheel will shake.
This is because when the car is driving, due to the loosening of the tie rod ball head or the rubber sleeve at the joint, and the tire becomes irregular due to wear, it should be sent to a professional maintenance point to check and replace the damaged parts.
3, when the vehicle speed is 30 to 40 kilometers per hour, the body has a sense of shaking, such as the feeling of a ship.
This situation is mostly due to the tire in daily use due to friction, collision or old and other reasons caused by deformation, replace the tire can be.
4. When driving at high speed, the steering wheel shakes when suddenly stepping on the brake.
In general, excessive braking force and excessive frequency may lead to overheating of the brake disc and brake pads, cold deformation, and steering wheel shaking. Generally, after replacing the brake disc and brake pads, the symptoms can be resolved.
5. Body resonance occurs at high speed.
The common reason is that the transmission shaft is distorted or the transmission shaft cross connection is loose, lack of oil rust. Since the above parts are under the body, the maintenance is most easy to ignore, so every time you do maintenance, try to let the staff in the oil can be on the part of the butter.
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