The steel wheel is an important part of the road roller and plays a crucial role with high frequency and high quality; Unique compaction efficiency; Applicable to roads and other large-scale paving works; The working weight is between 7 tons and 25 tons.
The causes of cracks on the steel wheel are as follows:
1. The welding materials of the roller are unqualified. As the welding rod is unqualified, the weld is easy to crack due to insufficient strength during use. After the crack occurs, the vibration cylinder cavity will tear due to the stress concentration.
2. The welding process is unqualified when leaving the factory. The original machine has welding quality defects during welding, such as slag separation, broken welding, undercut, incomplete welding, etc., which are easy to form stress concentration and fracture.
3. The design of steel wheel is unreasonable. The materials and dimensions used in the design of the original steel wheel are unqualified. The material strength of the steel wheel is different from that of the side plate vibration chamber. Due to the change of construction environment, the tensile strength formed by the vibrating steel wheel and the side plate of the vibration chamber is different, resulting in cracking.
4. Fatigue damage caused by improper maintenance and operation. During the use, the gas in the vibration chamber is easy to form high-pressure exciting wave due to the blockage of the steel wheel vent hole, which impacts the steel wheel chamber and breaks at the stress concentration points in the steel wheel chamber, and these stress concentration points happen to be at these welds.
The above points are the brief information of XCMG parts manufacturers. I hope they can help you.