In the long-term operation of WPWDA80,WPWDA100,WPWDA120,WPWDA135,WPWDA155 the reducer, there will often be wear, leakage and other faults. The most important ones are:
1.The bearing chamber of the reducer is worn, including the bearing chamber of the shell, the bearing chamber of the inner hole of the box, and the bearing chamber of the gearbox. wear and tear.
2. The shaft diameter of the gear shaft of the reducer is worn, and the main wear parts are the shaft head, keyway, etc.
3. The bearing position of the drive shaft of the reducer is worn.
4. The joint surface of the reducer is leaking. For the wear problem, the traditional solution of the enterprise is repair welding or machining repair after brush plating, but both of them have certain disadvantages: the thermal stress caused by the high temperature of repair welding cannot be completely eliminated, and it is easy to cause material damage, resulting in bending or breaking of parts; The brush plating is limited by the thickness of the coating and is easy to peel off, and the above two methods use metal to repair the metal, which cannot change the "hard to hard" matching relationship. Under the combined action of various forces, it will still cause re-wear. For some large bearing companies, it is even impossible to solve it on site, and most of them have to rely on outsourced repairs.
Contemporary western countries often use polymer composite repair methods for the above problems, and the more widely used ones have super strong adhesion, excellent compressive strength and other comprehensive properties. The application of polymer materials for repair can avoid disassembly and machining without the influence of repair welding thermal stress, and the thickness of the repair is not limited. At the same time, the metal material of the product does not have the concession, which can absorb the shock and vibration of the equipment and avoid the risk of re-wear It is possible and greatly prolongs the service life of equipment components, saving a lot of downtime for enterprises and creating huge economic value. For the leakage problem, the traditional method needs to disassemble and open the reducer, then replace the sealing gasket or apply 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 superior adhesion, oil resistance and 350% elongation of the material can overcome the impact caused by the vibration of the reducer and solve the leakage problem of the reducer for the enterprise.
