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Slewing bearing mechanism friction surface tectonic pattern classification:
Slewing mechanism friction surface structure, there are two types: conical friction joints and disc-shaped multi-plate friction joints. The basic principle is through spring pressure in the actuator between the friction surfaces have some friction torque, moment of resistance when turning the friction torque is less than the limit, no slipping. If more than this value is caused to slip. Crane at the port, a common type are:
(1) mounted on the motor shaft and coupling assembly fitted to a limit of the torque limiter, the principle is to: 1 mounted on the driving shaft 3 and the friction plate mounted on the driven shaft 2 between the friction plate 4 to transmit torque generated friction, the friction surface size can be adjusted by means of a compression spring 5, when passing loads exceed the maximum frictional torque, the friction surfaces start to slip, which play a protective role.
(2) mounted on the turbine torque limiter limits on the gear unit. Chinese turbine worm gear pair to pass through the cone friction disc torque. The pressing force of the friction surface engagement produced by the compression spring, the spring force of the torque transmission by the size of the nut needs to adjust.
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