Structural characteristics of monorail electric wire rope hoist

The electric wire rope hoist is composed of a motor, a transmission mechanism, a drum and a steel wire rope. According to different positions of drum and motor, it can be divided into four different types.

1.Wire rope hoists motor axis perpendicular to the drum axis by the worm gear transmission device, large width, heavy structure, low mechanical efficiency, difficult to processing. Almost no manufacturers to produce this type of wire rope hoist.

2.The monorail electric wire rope hoist which is parallel to the axis of the electric motor has the advantages of small height and length. Its disadvantages are large size, grouping, manufacturing and assembly. The track turning radius is large.

3.The motor installed in the drum inside the wire rope hoist, which has the advantages of small size, compact structure. The main disadvantages is the poor motor cooling conditions, poor grouping, and the inspection, installation, maintenance of motor inconvenience, power supply device is complex.

4.The motor installed on the outside of the monorail electric wire rope hoist, which has the advantages of good grouping, high degree of commonality, easy to change the lifting height, convenient installation and maintenance. The disadvantage is that the length is large.

此博客中的热门博文

How to deal with 3 ton electric chain hoist motor overheating

Any machine has the cycle and time of operation, is not suitable for a long time continuous operation. Long time operation will cause mechanical damage and even accidents, but in general if the 3 ton electric chain hoist surface temperature is too high, we need to check what is the reason. Firstly to check whether it is because the electric hoist weight is too large, beyond the 3 ton electric chain hoist rated weight. Overweight operation will make the motor over heating, overload for a long time will cause irreparable damage to the electric chain hoists for sale. Electric hoist motor is not overloaded, but still heating, should check whether the motor bearing damaged; Should also check whether the motor Work according to regulations, which is one of the reasons causing the motor heating. When the electric hoist motor is running, brake clearance is too small, not completely disengaged, causing great friction, while the frictional heating is also equivalent to the additi...

阅读全文

The reason of electrical wire rope hoist does not work after starting

Mainly because of the hoist does not reach to the rated operating voltage, there are generally 3 kinds of situations: 1.Find out whether the power supply system supply power to wire rope electric hoist , generally used test pencil, such as no power supply; 2.The main control circuit of the wire rope electric hoist is damaged, the line is broken or the contact is bad, can also let the hoist motor not be electrified. This situation, need to overhaul the main control circuit. When maintenance, in order to prevent missing phase to burn the motor casused by the main control circuit supply power to three-phase motor, or hoist motor suddenly operate and cause danger, must disconnect electrical wire rope hoist motor from the power supply, only supply power to the main control circuit. Then start and stop switch, check and analyze the working condition of the electric appliance and the line, repair or replace the failed electric appliance or line. When the main control circuit is confirmed...

阅读全文

Working principle of electric hoist motor

The DC disc brake of the electric hoist motor is mounted on the end cover of the motor shaft. When the crane duty motor is connected to the power supply, the electric hoist motor works at the same time. Because of the electromagnetic suction, attracts the armature and the compression spring, brake disc on the armature end cover is disengaged, crane duty motor running. When the power is turned off, the electromagnet electric hoist motor without magnetic force, the spring pushes the armature to the brake disc, the effect of friction torque, braking the motor stop immediately; our factory also produces the corresponding KDA050 dual speed motor. Electric hoist motor power supply by the rectifier in the motor junction box, and below 3 kilowatts to 4 kilowatts and above AC220V-DC99V, AC380V-DC170V (special time can also be in accordance with the requirements of the factory design such as (DC24V)), KDA050 series electric hoist motor , can move qu...

阅读全文

WOKAITE

搜索此博客