It is generally considered that the dynamic balance of a vehicle is the balance between the wheels when the vehicle is running. Usually said to add the balance block.
Composition and causes：
The wheels of a car are made up of tyres and wheels as a whole.
However, due to manufacturing reasons, the overall distribution of the parts of the mass can not be very uniform. When the wheel of the car rotates at high speed, it will form a dynamic imbalance state, causing the vehicle in motion wheel jitter, steering wheel vibration phenomenon.
In order to avoid this phenomenon or eliminate the phenomenon has occurred, it is necessary to make the wheel in the dynamic situation by increasing the method of weight, so that the wheel correction of the balance of the various edge parts. This correction process is known as dynamic balance. That is usually said to add the wheel weight; is made of lead alloy, to the Gram as a unit, including 5 grams, 10 grams, 15 grams, do not think that the mass is small, when the wheel rotating at high speed will produce a large centrifugal force. The balance block has a steel hook which can be embedded on the rim of the wheel.
Necessity：
1. When the wheel hub and brake drum (disc) are processed, the axle center positioning is not accurate, the processing error is big, the casting error of non-machined surface is big, the heat treatment distortion, the distortion in use or the abrasion is uneve
2. The quality of lug bolts is not equal, the quality distribution of hub is not uniform or the radial circle runout, the end circle runout is too big.
3. Uneven tire quality distribution, size or shape error is too large, the use of deformation or uneven wear, the use of retreading tire or pad, tire repair
4.The inflation nozzle of the twin is not separated by 180 degrees, and the inflation nozzle of the single tire is not separated by 180 degrees from the imbalance mark
5. When the wheel hub, brake drum, tire bolt, rim, inner tube, liner, tire and so on are disassembled and reassembled into a tire, the accumulated unbalanced mass or the shape deviation is too big, has destroyed the original balance.
Post time: Nov-01-2022