Electric Windlass And Hydraulic Windlass

Electric windlass

Electric windlass is currently the most widely used on ships.

According to the different electricity systems used by ships, electric windlasses have DC electric and AC. The DC electric windlass has good speed regulation characteristics and high use efficiency, but the initial installation cost is high, and the brushes need regular maintenance.

The AC electric windlass has poor speed regulation performance, and usually can only be changed in stages. It depends on pole change or a set of reduction transmission mechanism between the motor and the windlass to obtain several speed grades. This set of reduction transmission mechanism, due to the required reduction ratio is quite large, and considering issues such as the reliability of the speed change device and the windlass, the structure is relatively complicated, the weight and the area occupied by the deck are relatively large.

The reduction transmission device often adopts spherical worm and worm gear transmission, spur gear transmission, planetary gear transmission and other transmission methods. Generally speaking, the planetary gear reduction transmission mechanism is light in weight, small in size, high in transmission efficiency, and easy to maintain, so it is currently used more.

Hydraulic windlass

Hydraulic windlass is a windlass that mainly relies on hydraulic devices to perform and control actions. Hydraulic windlass is also called electro-hydraulic windlass because its hydraulic energy comes from an oil pump device driven by an electric motor. It has the following characteristics:

(1) It has good speed regulation performance equivalent to that of DC electric windlass.

(2) Low-speed and high-torque hydraulic motors are usually used, with low rotation speed and large output torque. It is no longer necessary to set up a huge mechanical reducer and can directly drive the anchor sprocket.

(3) The hydraulic transmission has self-braking performance, and the work is safe and reliable.

(4) Compact structure, small weight and size per unit power. .

(5) Convenient operation and simple maintenance.

(6) Easy to realize remote control and automation