Single, double speed electric hoist transmission structure
Single (CD1 type), double speed (MD1 type) electric hoist mainly by the lift hoist operating mechanism, electrical installations of three parts.
1, the lifting mechanism: Hoisting mechanism through the coupling by the hoisting motor hollow shaft driven by the subtractor drum rotates, so that the wire rope around the drum driven hook device up or down.
(A). Lifting motor
Lifting motor with a larger conical rotor motor starting torque to meet production Lu frequent intermittent work directly start, lifting the motor, there are two, ZD single speed motors, ZDS two-speed motor, ZDS motors normal speed and Slow ratio of 10:1.
Helical gear reducer using three deceleration. Gears and shafts made of alloy structure processing. And after appropriate heat treatment; box, cover with less cast iron, vibration better, reliable sealing.
(3) High-speed roll made of cast iron or steel pipe manufacture, use splined transmission of power; drum machine shell is made of welded steel plate. Reed Wire rope hoist drum device is a central part of the organization and operation of the side plates connected to both ends of the hoisting reducer, motor connection, the lower rope with hook device through joint work, before the top of the enclosure, install a limited Locator guide devices.
(4) hook device
Hook using special steel chain from the system. Thrust ball bearings used through the hook beam associated with the housing, so that the hook operate freely. ≤ 5t hook device is a single pulley, 10t for the double pulley.
2, run structure: electric trolley, run the motor running reducer, driven trolley of common components run institutions, functioning institutions led through the host side with drum equipment reciprocating movement. Its speed is generally 20m/min, or may choose 30m/min. ≤ 5t of a drive device, ≥ 10t using two sets of drive means.
3, the electrical installations: rope hoist electrical device consists of electrical control box, push button switches, limit and connector wires and other components. Button switch operating voltage is typically 36V, under the direction of the symbol shown on the push-button switch, push the right buttons, relay control box through the closing and opening, you can control the action gourd.