Electric cable hoists are lifting
equipment that is widely used in many industrial sectors. Electric Wire
rope hoist is used for loading and unloading materials in the mine, warehouse,
factory, workshop, etc. They have many advantages such as compact
structure, small volume, lightweight, easy operation, and simple
maintenance. Its main components are the engine, transmission mechanism,
electric trolley, and cable drum. Electric cable hoists are as
popular. Electric chain hoist.
Role of
Electric Cable Hoist Parts
1. Gear
motors: It is wire hoist gear. The gearwheels and gear bearings have
been manufactured with heat-treated alloy steel. The body and lid of the
machine are produced with high quality cast iron. All components are
mounted tightly.
2. Control
box:
Adopts a device that can cut the main electrical circuit against
emergencies. It also carries a limiter for extreme distance.
3. Steel
cable:
It is a type of lifting cable. It can guarantee security.
4. Conical
rotor brake motor: Asynchronous conical rotor brake motor of a great moment of the
driving force is used as the lifting motor. It is not necessary to add
another brake.
5. Button
switch: Adopting the form of manual control, as the operation is more
flexible and convenient. The keypad can control with a cable or without
cable.
Types of
Cable Cores for Electric Wire Rope hoist
There is a core in the cable of Electric
Wire rope hoist. It can increase the rolling, elasticity and lubrication
properties. And so you can reduce the friction resistance with pulley and
drum. There are four basic materials commonly used for cable core: organic
core, fiber core, asbestos core, and metal core.
Organic
core:
It is made of cotton. The cotton is twisted on a rope first. The
organic core cable is flexible. When the steel cable is pressed in the
lifting work, the oil stored in the core oozes and thus lubricates the steel
cable. But this type of cable has a low resistance to heat and
fire. It is not suitable in high-temperature conditions and high pressure
cannot be maintained.
Fiber core: It is made
of natural fiber or synthetic fiber. This type also does not work in hot
environments or for very heavy loads.
Asbestos
core:
It is made of asbestos. It has similar properties to those of the organic
core and those of the fiber. The difference is that asbestos core can
adapt to the hot and metallurgical environment. But you can't sustain
great pressure.
Metal core: It is
manufactured with mild steel. This type of steel cable can withstand high
temperature and high pressure. It also adapts to complex working
conditions. Of course, its price is higher.
