The impact crusher is a new type of high-efficiency crushing equipment. Its characteristics are: small size, simple structure, large crushing ratio, low energy consumption, large production capacity, and uniform product size, and selective crushing effect, very promising equipment. The impact crusher is also called impact crusher. It is mainly used for metallurgy, chemical industry, building materials, hydropower and other materials that often require relocation operations, especially for the operations of mobile stone such as highways, railways, and hydropower projects. It can be processed according to the raw materials. Different types, scales and finished material requirements adopt multiple configuration forms. Bearing bit wear of impact crusher is a common failure problem of this equipment, how to quickly solve this problem?
Let’s first analyze what are the reasons for the wear of the bearing position of the impact crusher?
The motor drives the drive shaft to rotate at a high speed at a speed of about 1000 per minute. The drive shaft is equipped with an adapter sleeve, and the bearing is closely matched with the shaft through the adapter sleeve. When the crusher is working, the crushing of materials will cause the drive shaft to vibrate violently. In addition to the load force, long-term operation of the equipment under this working condition will cause unavoidable metal fatigue on the mating surfaces between the bearing, adapter sleeve, and drive shaft, and the wear of the shaft surface will increase the gap between the mating surfaces. If the gap is increased, the wear of the mating surface will be aggravated to form a vicious circle, land the equipment will be damaged in a short time. Therefore, in many cases, the equipment has been running normally and suddenly fails. Metal fatigue is an unavoidable characteristic of metal, and it can only strengthen daily inspection and maintenance to extend the service life of the equipment.
Aiming at the problem of bearing bit wear of impact crusher, it is recommended to use Soleil carbon nano polymer material to quickly solve this problem on site. The process steps are as follows:
(1) Observe the site, clean up oil and impurities, and measure related data;
(2) Roast the surface of the worn parts of the shaft with oil, then polish off the oxide layer, and test the tooling empty;
(3) Clean the surface to be repaired with absolute ethanol and dry it;
(4) Apply a release agent to the inner wall of the tooling, and apply a release agent to the thread on the shaft surface and other places that need to be protected;
(5) Proportionally blend Sole Carbon Nano polymer materials and apply them to the surface to be repaired;
(6) Install tooling and heat curing materials;
(7) After the material is cured, disassemble the tooling, remove the excess material, and correct the size;
(8) Reinstall other parts such as bearings and complete the repair.