2013年7月17日星期三

Electric wire rope hoist types of content、 component、 parts


Wire rope hoistcomponents are: motor, transmission, drum and wire rope. Mutual position of the motor and the drum can be broadly divided into four different types.
(A) motor axis is perpendicular to the axis of the hoist drum worm gear used, the width aspect large size, structure bulky, inefficient machinery, processing more difficult. Manufacturers have no such structure type of product.
(2) motor axis parallel to the axis of the hoist drum, and its
Advantages of small size, height and length. The width dimension of its shortcomings, group sex, manufacturing and assembly complexity. Track turning radius.
(3) motor mounted inside the drum hoist, and its advantages for the length of the small size, compact structure. The main drawback of the motor cooling conditions are poor, poor packet, inspection, installation, maintenance motor inconvenience complex power supply unit.
(4) motor mounted on the outside of the drum hoist, the advantage of the group is good, high level of generalization, lifting height is easy to change, easy installation and maintenance. The disadvantage is: length large size.
Integral part of the  rope hoist  can be broadly divided into: reducer, control box, wire rope, cone-shaped electric motor, push button switches.
The role of the various components and functions are as follows:
Reducer: is the use of three fixed axis helical gear transmission mechanism, gears and gear shafts are heat-treated alloy steel, box, cover made from high quality cast iron, fitted tightly sealed.
Control box: It is used in case of an emergency shut off the main circuit, and with a vertical stroke limiter stage fire protection devices.
Rope: type lifting rope is used, which guarantees durability. Cone Motor: Lifting motor with a larger dynamic moment conical rotor brake asynchronous motor, no external brake.
Button switch: The handheld type, lightweight flexible, sub-corded and cordless remote control in two ways.

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