Vehicle shaking is a problem that 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 hip or foot numbness. If this goes on for a prolonged time, it will not only aggravate the abnormal wear of vehicle parts, but also gravely affect driving safety.
In general, the vehicle in the process of driving jitter, most likely the following three structures have problems: tire hub, direction machine, drive shaft.
Then how do you distinguish between self-tests? Semi Trailer Manufacturers analyze the phenomenon of vehicle jitter.
Vehicle jitter can usually be divided into two types:
One is that the vehicle reaches a certain speed before the jitter, can not reach this speed in the case of no jitter;
one is the continuous existence of vehicle shaking, and with the increase of the speed of the more intense.
If the shaking occurs only after the vehicle reaches a certain speed, the possible reasons are as follows:
1. Tire imbalance
This reason is more common in tiny cars, but trucks can not be ruled out.
The wheel of the vehicle is 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 achieve a highly uniform state. Especially after the owner disassembly and installation of the tire, there is no tire dynamic balance. When the wheel rotates at elevated speed, there will be a dynamic imbalance phenomenon, so that the wheel jitter, the steering wheel jitter, the body jitter. In this case, going to the tire shop and doing dynamic balancing will essentially solve the problem.
In some cases, when the tire pressure of the vehicle tire is not consistent, it is also easy to cause the phenomenon of excessive speed jitter of the vehicle, the owners should pay attention to discrimination.
2. Steel ring deformation
This is more common in cargo vehicles, especially the vehicles that often walk in poor road conditions. The steel ring is easy to deformation because of the bumps or external impact of the road. This time it needs to be replaced or repaired.
3. Tire deformation
The owner can see the tire is not damaged or raised, touch the tire surface wear, if there is tire deformation, it is necessary to replace in time.
If the jitter exists in the process of vehicle use, the faster the speed, the more severe the jitter, the reasons for this phenomenon may be the following:
1, direction machine horizontal rod ball head wear excessive
The direction machine and the ball head parts are relatively active, easy to wear over a long time, there will be subtle angle is not accurate in the steering, leading to tire jitter and other situations, if there is loose nut, easy to damage cotter pin and straight tie rod, affect the vehicle direction control, leading to driving safety problems.
2, drive shaft deformation
transmission shaft in the use of vehicles to undertake a highly essential task, especially when the throttle starts, rapid acceleration, the transmission shaft to bear the torque is large, it is easy to damage. In addition, collision, scraping, bolt loosening, bridge bearing and damping rubber sleeve wear, transmission shaft distortion and deformation, may lead to the transmission shaft runout, causing vehicle shaking.
In these two cases, the owners of their own judgment and maintenance are more difficult, or it is recommended to professional maintenance stations for maintenance.
In addition, serious engine carbon accumulation, ignition system problems, oil pressure instability, aging engine parts, floor mat damage, etc., may cause the phenomenon of body shaking. owners do not need to be overly alarmed, if they can not repair themselves, they can go to a professional maintenance station for maintenance or replacement.