Composition structure electric hoist

electrical hoists structure reducer: using three fixed helical gear rotating mechanism, the gear and the gear shaft of heat-treated alloy steel box, cover made of high quality cast iron, fitted tightly sealed. Reducer self-contained unit, loading and unloading is very convenient.
Control box: use can cut off the main circuit in case of emergency, and up and down stroke protection off the fire stopper with means. Ensure the safe operation of the hoist. Electric long component life and reliable use.
Rope: the GB1102-74 (6 * 37 + 1) X-type lifting cables to ensure durability.
Tapered Motor: Lifting motor with large starting torque tapered rotor brake asynchronous motor, no external brake. 25% duty cycle motors, motor with Class B or Class F insulation, electrical protection class IP44 / IP54.
Button switch: Hand operating lightweight and flexible, sub-corded and wireless remote manipulation of two ways.
Part of the hoist are: motor, transmission, drum and sprocket.
In the mutual position of the motor and the reel can be broadly divided into four different types:
(1) The motor axis is perpendicular to the axis of the hoist drum using a worm gear, a large width aspect size, structure bulky, low mechanical efficiency, more difficult process, has not produced to the structure type of product.
(2) The motor axis parallel to the axis of the mandrel explosion proof electric hoist, the advantage of small size, height and length. The disadvantage is the width of large size packet of manufacture and assembly of complex, large turning radius orbit.
(3) The motor mounted on the inside of the drum hoist, the advantage of a small length dimension, compact structure. Its main drawback is the motor cooling conditions are poor, poor packet, inspection, installation, maintenance motor inconvenience, power supply unit complex.
(4) mounted on the outside of the drum motor hoist, the advantage for the group, and high degree of common, easy to change the lifting height, easy installation and maintenance. The drawback is the length of large size.