The drive shaft of the car is mainly a metal shaft, but we must not think that the drive shaft is simply a metal to make a stick, that is connected to the wheels so simple.

Drive shaft is mainly used to transmit power, such as the rotation of the shaft to the transmission on the move over to the main reducer, it is composed of universal joint connection, as a high speed and less bearing body of revolution, especially need to consider their own balance shaft itself, in production before delivery, so often do a series of balance testing, balance experiment, and adjustments on the balancing machine.

Automobile drive shaft is mainly composed of three parts: axle tube, telescopic sleeve and universal joint. The drive shaft above can be assembled to connect the various parts of the car, while in the process of driving the car, the drive shaft is to maintain a high-speed rotation action. So the drive shaft is often made of some relatively light but very good torsion resistance alloy materials.

An important part of the drive shaft is the universal joint. The installation position of the different car universal joint is also different, such as the front rear car, the universal joint is installed between the output shaft of the car transmission and the input shaft of the main reducer; Because the engine and driving wheels are at the front of the car, there is no need to use a drive shaft at all. Therefore, the universal joint is installed between the front axle and the wheels.

In the process of driving the car, it is inevitable to encounter a variety of bumpy road conditions, which will make the car jump, so that the load will change, so between the transmission output shaft and the main reducer input shaft, the Angle and the distance between these will change accordingly. And this time the universal joint of the drive shaft is to solve this problem and was born.

First of all, the universal joint on the drive shaft can ensure that in this kind of road conditions, the relative position of the transmission output shaft and the main reducer input shaft changes (to change within a certain range), but also normal and reliable transmission of power. Secondly, the universal joint also enables the two shafts to operate evenly. The universal joint also ensures the change of the Angle between the two shafts and enables the two shafts to be driven at the same angular speed.

If our car on the drive shaft parts case of damage or loss of balance, the cars are driving in normal when some abnormal vibration and noise, such as "hitched" sound, car started off in normal driving chassis will produce a "buzzing" sound, and as we are moving faster and faster, the noise is more and more, these are because we caused by the problems of automobile transmission shaft.

These problems, then go to the repair shop to find a professional teacher to look at it.

So in order to avoid frequent maintenance shop, we must know how to do to ensure that our drive shaft can normally complete their work, but also to extend their service life as far as possible.

1, after stepping on the clutch pedal, we must pay attention not to suddenly lift up.

2. The overloading and overspeed of the car will also damage the transmission shaft.

3, do not use high gear to start, develop good driving habits.

4, to regularly check the transmission shaft, check whether the transmission shaft is out of shape, the transmission shaft is connected to these places are loose, etc.