Four Common Faults of Worm Gear and Worm Reduction

Worm gear reducer is a kind of compact structure, large transmission ratio, and has the self-locking functionunder certain conditions. The idea of mechanical, is one of the most commonly used speed reducer, wherein, the hollow shaft worm gear reducer has the above characteristics, and ease of installation, structure character,applied more and more widely.

1, have a fever reducer and the oil spill

In order to improve the efficiency of worm gear reducer, generally adopt nonferrous metals do worm, worm is ahard steel, because it is the sliding friction transmission, in the process of operation, it will produce a higher heat,parts of the reducer and expansion seal between the heat generated from the difference, and produces a gap inthe mating surfaces, and oil because of the temperature rise of thinning, easy cause leakage. There are four main reasons, one is the material collocation is reasonable, the surface quality of the friction surface of two mesh,three is the selection of lubricating oil, adding quantity is accurate, the four is the assembly quality andenvironment.

2, wear of worm gear

The tin bronze worm gear, worm material pairing general with 45 steel hardened to HRC45 55, also used the 40C: hardened HRC50 55, the worm grinding to roughness RaO. of 8 FCM, the normal operation of the worm reducer,like a hardened "file", keep filing worm the worm gear wear. In general, this wear very slowly, like a plant somereducer can be used more than 10 years. If wear faster, it must consider the reducer selection is accurate,whether overload operation, worm gear material, assembly quality or environmental reasons.

3, small transmission gear wear

Generally occurs in the speed reducer vertical installation, mainly with the lubricating oil additive and lubricating oil selection. Vertical installation, easy to cause the lubricating oil shortage, when the reducer off when running,the motor and the reducer gear oil loss, gear without lubrication due protection, starting or running processcannot obtain the effective lubrication cause mechanical wear or damage.

4, the worm bearing damage

Reducer gearbox fault, even good sealing, the plant is often found in the speed reducer gear oil was emulsified,bearing a rusted, erosion, damage, this is because the reducer in the operating process, generating gear oil made from hot to cold after the moisture condensation caused; of course, and the quality of bearings, assemblyprocess closely related.