Drive shaft of a car is mainly a metal shaft, but you must not think that the driving shaft is a simple metal-made stick, thinking that it is as simple as connecting the wheels.

Drive shaft is mainly used to transmit power. For example, the transmission shaft transfers the rotation of the transmission to the main reducer. It is connected by a universal joint. As a high-speed and less-supported rotating body, the transmission shaft itself needs special consideration Because of its own balance status, a series of balance tests and balance experiments are often performed before production and delivery, and adjustments are made on the balancer.

The transmission shaft of a car is mainly composed of three components: a shaft tube, an expansion sleeve and a universal joint. The drive shaft can be equipped with various accessories connected to the car. At the same time, the drive shaft maintains a high-speed rotation during the car's driving. Therefore, the transmission shaft is often made of some lighter alloy materials with very good torsion resistance.

The most important component of the drive shaft is the universal joint. Different car universal joint installation positions are also different, such as front rear drive, universal joint is installed between the output shaft of the car transmission and the input shaft of the main reducer; while the front front drive is different, Due to the characteristics of front-wheel drive vehicles, the engine and the drive wheels are on the front part of the car, so there is no need to use a drive shaft at all, so the universal joint of this car is installed between the front axle half shaft and the wheels.

In the course of driving, the car will inevitably encounter various rough road conditions. This road condition will cause the car to jump and the load will change. Then the transmission output shaft and the input shaft of the main reducer , The angle and the distance will change accordingly. At this time, the universal joint of the transmission shaft was born to solve this problem.

First of all, the universal joint on the transmission shaft can ensure that under such road conditions, the relative position of the transmission output shaft and the input shaft of the main reducer changes (to a certain range), it can also transmit power normally and reliably. . Secondly, the universal joint can make these two shafts run evenly. Finally, the universal joint can also ensure that the included angle of the two shafts changes, and enables the two shafts to perform constant angular speed transmission.

If the drive shaft parts of our car are damaged or out of balance, the car will produce some abnormal vibrations and sounds during normal driving, such as a "chuckling" sound when starting, and the chassis will produce when the car is driving normally. The "buzzing" sound, and as we drive faster and faster, the sound is getting louder and louder. These are all caused by problems with the drive shaft of our car.

If these problems occur, then go to the repair shop and look for a professional master.

Therefore, in order to avoid frequent maintenance shops, we must know how to ensure that our drive shafts can properly complete their job, and at the same time can extend their service life as much as possible.

1. After pressing the clutch pedal, be careful not to lift it suddenly.

2. The overload and overspeed behavior of the car will also damage the drive shaft.

3. Don't use high-speed gear to get started, and develop good driving habits.

4. Regularly check the drive shaft to see if the drive shaft is deformed and whether the places where the drive shaft is connected are loose.