What are the advantages of the hoist?

Winches include building winches and marine winches. Electric hoist is powered by motor, driven by elastic coupling, three-stage closed gear reduction box, tooth-embedded coupling and electromagnetic braking. Advantages and disadvantages of electric hoist are as follows:

Advantages:

1, electric hoist has the advantages of high versatility, compact structure, small volume, light weight, heavy lifting, convenient use and transfer. Widely used in construction, water conservancy projects, forestry, mines, docks and other lifting or dragging materials. It can also be used as supporting equipment for modern electronic control automatic production line.

2. The gear transmission of electric hoist is the most widely used transmission form in modern machinery. Its main advantages are: ① the instantaneous transmission ratio is constant, the work is stable, the transmission is accurate and reliable, and the motion and power between any two axes in space can be transmitted; (2) wide range of power and speed; ③ High transmission efficiency, η = 0.92-0.98; ④ Reliable operation and long service life; ⑤ Small size and compact structure.

3. The gear reducer consisting of gear, shaft, bearing and box is used between the prime mover and the working machine or actuator to match the rotating speed and transmit the torque. Gear reducer is widely used because of its high efficiency, long service life and simple maintenance. Gear reducers can be divided into single-stage, two-stage, three-stage and multi-stage reducers according to the number of reduction gears; According to the mutual configuration of shafts in space, it can be divided into vertical and horizontal reducers; According to the characteristics of motion diagram, it can be divided into expansion reducer, coaxial reducer and shunt reducer.

4. Generally, the maximum transmission ratio of a single-stage cylindrical gear reducer is 8 ~ 10, which is mainly to avoid oversize profile. If I> 10, I should adopt a two-stage cylindrical gear reducer. Two-stage cylindrical gear reducer is used when I: 8 ~ 50 and the sum of the center distances of high and low speed stages is 250 ~ 400 mmm.

Disadvantages:

1, it is easy to leak water if the installation is rough.

2, circuit facilities more than 2.5) hoist is prone to failure.