Vehicle shaking is a problem numerous drivers have encountered, especially when the vehicle speeds up to 80 miles, there will be body shaking, and even accompanied by abnormal sound, resulting in vibration in the cab, the driver's buttocks or feet numbness. In the long run, it will not only aggravate the abnormal wear of vehicle parts, but also may gravely affect driving safety.
Semi Trailer supplier says that in general, if the vehicle jitters while driving, it is likely that the following three structures will have problems: tire hub, steering gear and transmission shaft.
Then how do you differentiate between self-tests? We analyze the phenomenon of vehicle jitter.
Vehicle jitter can usually be divided into two types:
One is the vehicle to reach a certain speed before jittering, can not reach the speed of the case without jittering;
one is the continuous existence of vehicle jitter, and with the increase of speed more intense.
If it is the vehicle to reach a certain speed after the phenomenon of shaking, there may be the following reasons:
1. Tire imbalance
This reason is more common in the car, but the truck can not be excluded.
The wheels of vehicles are composed of tires and hubs as a whole, but due to manufacturing and other reasons, the mass distribution of each part of the whole can not reach a highly uniform state. Especially after the owner dismantled and installed the tire, there is no tire dynamic balance. When the wheel rotates at high speed, it will form a dynamic imbalance phenomenon, so that the wheel shakes, the steering wheel shakes, the body shakes. In this case, to the tire shop do a dynamic balance essentially can solve the problem.
In some cases, when the tire pressure of the vehicle is inconsistent, it is also easy to cause the phenomenon of high-speed jitter of the vehicle, the owners should pay attention to distinguish.
2. Deformation of steel ring
This is also common in cargo vehicles, especially vehicles that frequently walk in poor road conditions. The steel ring is easy to deformation because of bumps on the road or external impact. At this time, it needs to be replaced or repaired.
3, tire deformation
The owner can see whether the tire is damaged or raised, and feel the wear situation of the tire surface carefully by hand. If there is tire deformation, it is necessary to replace it in time.
If the jitter has ever existed in the process of vehicle use, the faster the speed, the more severe the jitter, the reasons for this phenomenon may be as follows:
1. The ball head of the transverse tie rod of the direction machine is worn excessively.
Direction machines and balls and other parts are relatively active. A long time is easy to wear. There will be a slight angle is not accurate in steering, leading to tire jitter and other situations. If the nut is loose, it is easy to damage the cotter pin and straight tie rod, affect the direction of the vehicle control, resulting in driving safety problems.
2, the transmission shaft deformation
The drive shaft assumes a highly crucial task in the use of vehicles, especially when the throttle starts and accelerates rapidly, the torque undertaken by the drive shaft is larger, and it is easy to be damaged. In addition, collision, scraping, bolt loosening, bridge bearing and damping rubber sleeve wear, transfer shaft distortion, may lead to the transmission shaft jumping, causing vehicle jitter.
In these two cases, the owner's own judgment and maintenance is more difficult, or it is recommended to the professional maintenance station for maintenance.
In addition, serious engine carbon accumulation, ignition system problems, oil pressure instability, engine parts aging, machine pad damage, etc., may cause the phenomenon of body shaking, the owner need not be overly alarmed, if not self-maintenance, can go to the professional maintenance station for maintenance or replacement.