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Solutions to common problems of helical gear reducers

Author : Site EditorPublish Time :

1. Guarantee assembly quality

Some special tools can be purchased or made by yourself. When disassembling and installing reducer parts, try to avoid hitting with other tools such as hammers; when replacing gears and worm gears, try to use original parts and replace them in pairs; when assembling the output shaft, pay attention Tolerance matching; anti-sticking agent or red lead oil should be used to protect the hollow shaft to prevent abrasion, rust, or dirt on the mating area, which is difficult to disassemble during maintenance.

2. Selection of lubricants and additives

Helical gear-worm gear reducers generally choose 220# gear oil. For reducers with heavy loads, frequent starts, and poor use environments, some lubricating oil additives can be used to make the gear oil still adhere to the gear surface when the reducer is stopped. , To form a protective film to prevent heavy load, low speed, high torque and direct contact between metals when starting. The additives contain seal ring regulator and anti-leakage agent to keep the seal ring soft and elastic and effectively reduce lubricating oil leakage.

3. Selection of the installation location of the reducer

Where the location permits, try not to use vertical installation. In vertical installation, the amount of lubricating oil added is much larger than that in horizontal installation, which may cause heat generation and oil leakage of the reducer.

4. Establish a lubrication maintenance system

The reducer can be maintained according to the "five fixed" principle of lubrication work, so that every reducer has a person responsible for regular inspections. It is found that the temperature rise is obvious, if the temperature exceeds 40C or the oil temperature exceeds 80°C, the quality of the oil decreases or the oil If more copper powder and abnormal noise are found in the system, stop using it immediately, overhaul it in time, eliminate the fault, and replace the lubricant. When refueling, pay attention to the amount of oil to ensure that the reducer is properly lubricated.

5. Maintenance methods in the new era

In view of the wear and leakage of the reducer, the traditional solution is repair welding or machining and repair after brush plating, but both have certain drawbacks: the thermal stress generated by the high temperature of repair welding cannot be completely eliminated, and it is easy to cause material damage and cause parts to bend. Or break; while the electric brush plating is limited by the thickness of the coating, it is easy to peel off, and the above two methods use metal to repair the metal, which cannot change the "hard-to-hard" coordination relationship. Under the combined action of various forces, it will still cause another Wear. Contemporary Western countries mostly use polymer composite repair methods for the above problems. At present, the most mature application is the product of Mega Wah technology, which has super adhesion, excellent compressive strength and other comprehensive properties, and can be disassembled and machine-free. Processing for on-site repair. Repairing with polymer materials is not affected by the thermal stress of repair welding, and the repair thickness is not limited. At the same time, the product has a retreat that the metal material does not have, can absorb the shock and vibration of the equipment, avoid the possibility of re-wear, and greatly extend the equipment components The service life of the company saves a lot of downtime for enterprises and creates huge economic value.


Company Profile

Zhejiang Wuma Reducer Co. Ltd is a national Hi-tech enterprise who pecialized in developing and production of various types of speed reducers.Our main products are RV series worm reducerhelical gearbox, WAH series hypoid gear reducer, precision planetary gearbox etc., more than ten series of products. We can also provide the service with special and customized products. Our products have been widely sold to all over China and exported to other countries and regions like Europe, America, Hong Kong, Taiwan and Southeast Asia and so on.

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