Due to the harsh operating environment of the reducer, failures such as wear and leakage often occur. The main types are:
1. The wear of the bearing chamber of the reducer, which also includes the wear of the housing bearing box, the bore bearing chamber of the box body, and the gearbox bearing chamber;
2. The shaft diameter of the gear shaft of the reducer is worn, and the main wear parts are the shaft head and the keyway;
3. The bearing position of the reducer drive shaft is worn;
4. Leakage on the joint surface of the reducer.
For the wear problem, the traditional solution is repair welding or machining after brush plating, but both have certain disadvantages: the thermal stress generated by high temperature repair welding cannot be completely eliminated, which is easy to cause material damage and lead to bending or breakage of components; and Brush plating is limited by the thickness of the coating, and it is easy to peel off. Both of the above methods use metal to repair the metal, which cannot change the "hard to hard" matching relationship. Under the combined effect of various forces, it will still cause wear again. For some large bearing companies, it is impossible to solve it on site, and it often depends on external repairs. Contemporary western countries often use polymer composite repair methods for the above problems, which have super strong adhesion, excellent compressive strength and other comprehensive properties. The use of polymer materials for repair can be disassembled and machined without the influence of repair welding thermal stress, and the repair thickness is not limited. At the same time, the metal material of the product does not have the concession, which can absorb the impact shock of the equipment and avoid re-wear. Possible, and greatly extend the service life of equipment components, save a lot of downtime for enterprises, and create huge economic value.
For the leakage problem, the traditional method needs to disassemble and open the reducer, and replace the sealing gasket or apply the sealant, which is not only time-consuming and laborious, but also difficult to ensure the sealing effect, and leakage will occur again during operation. The polymer material can control the leakage on site. The material has excellent adhesion, oil resistance and 350% stretch, which overcomes the influence of the reducer vibration and solves the problem of reducer leakage for the enterprise.