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单词 Drive pulley
释义

Drive pulley

英语百科

Drum motor

Drum Motor with Planetary Gear
Drum Motor With Helical Spur Gear
The end housing
Modern encoder for continuous monitoring of speed, position and direction of rotation

A drum motor (or motorised pulley) is a geared motor drive enclosed within a steel shell providing a single component driving pulley for conveyor belts.

The drum motor concept was first recorded in 1928 but was not realised until the early 1950s when it was first produced specifically for conveyor belt applications. The idea was to produce a compact, totally enclosed single component drive unit with high efficiency and lower frictional losses than a conventional geared motor. The new design was quick and easy to install, required no maintenance and because of its totally enclosed IP66 sealed design would be unaffected by dust, dirt grease or water. Today you see many examples of drum motor applications in airport check-in conveyors and security machines, supermarket checkstands, food processing conveyors and weighing equipment. Reversible drum motors are also used for roller shutter doors.

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