How to calibrate the tire dynamic balancer and wheel dynamic balance
1: Inflate the tire to the proper air pressure, remove the lead on the rim, remove the stones in the tire groove, and clean the rim
2: Install the balance shaft with the tire mounting surface facing inward, select the appropriate vertebral body, and use the locking device to lock the tire. (The vertebral body must be aligned with the center hole. Otherwise, the data may be inaccurate)
3: Turn on the power of the balancing machine, pull out the ruler to measure the distance between the rim and the balancing machine, the width of the rim, the diameter of the rim, and input the measured data in turn
4: Press the start button, the balancing machine starts to drive the tires to rotate, and the measurement starts, be careful not to stand near the tires as danger may occur
5: The balancer automatically stops when the data is measured.
6: Rotate the tire to the position on one side of the balancer, the light is fully on (different models display different ways), tap the lead block of the corresponding grams at the highest point of the rim on the side of the fully bright side, which is the position of 12 o'clock, and the other side is also like this
7: Repeat the steps after 4 until the balance machine shows 0 (below 5 grams is fine, because there is no lead block below 5 grams, the balance machine does not display the unbalanced amount below 5 grams)
8: After dynamic balancing, remove the tire
2, Correction of wheel dynamic balance?
Due to manufacturing reasons, or long use time and tire wear, the mass distribution of each part of the whole cannot be very uniform. When the wheels of the car rotate at high speed, it will form a dynamic unbalanced state, causing the wheels of the vehicle to move. Vibration, steering wheel vibration.
The reasons for wheel dynamic balancing are: 1. The hub is deformed and hits hard objects, 2. The tires have been used for a long time, resulting in different contact areas after wear, or when new tires are replaced, do dynamic balancing Mainly for the above two reasons!
Install the tire on the hub, put the hub on the dynamic balancer, tighten it, and fix the hub with the axis of the balancer, then start the balancer, push the hub a little, and give a little acceleration to make the balancer rotate. Raise it, then let it stand still, then observe the data on the dynamic balancer, select the corresponding lead block, usually turn the wheel hub to the center of the axle, when the balancer shows five grids, it proves that the wheel hub is in the center, then Align the shaft of the balancing machine, hit the lead block in the corresponding direction, until the words "good" are displayed on both sides, which proves that the dynamic balancing is completed, and so on, also do the dynamic balancing of the other wheels to ensure the driving safety and increase the overtime. controllability,
I hope the above answers are helpful to you, if you have any questions, please continue to ask!
Glossary
Dynamic balance
High-speed rotating machinery is greatly affected by materials, and impact, corrosion, wear, and coking will cause unbalanced failures to the rotor system of the machine. And 70% of the vibration failure of rotating machinery comes from the unbalance of the rotor system. Usually, maintenance personnel dismantle the rotor with large vibration, directly replace the impeller, etc., and then re-install it and run it to reduce the vibration. However, due to the existence of the original unbalance of the rotating parts, after the machine is running, sometimes the vibration still exceeds the standard allowable value. In order to prevent the machine from being destroyed, threaten the safety of on-site personnel and ensure the normal operation of production, dynamic balance correction is required.
Balancer
The balancing machine is an instrument used to measure the unbalance of the rotor. The balancing machine is a hard-supported balancing machine. The rigidity of the swing frame is very large. The measurement results of the dynamic balancing machine are used to correct the unbalance of the rotor, so that the vibration generated when the rotor rotates or acts on the rotor. The vibration on the bearing is reduced to the allowable range to achieve the purpose of reducing vibration, improving performance and improving product quality, and using weighting or de-weighting to eliminate the size of the unbalance.
hub
The hub is the cylindrical, center-mounted metal part that supports the tire on the inside of the tire. Also known as rim, steel ring, wheel, tire bell. There are many types of wheel hubs according to diameter, width, forming method and material.