The double-lift-point winch hoist is a heavy-duty hydraulic machinery used for gate control, featuring a dual-lift-point design to achieve synchronous lifting and lowering. It is suitable for applications such as reservoirs, hydropower stations, and ship locks.
Core Functions
The double-lift-point structure prevents gate deformation caused by uneven force distribution at a single point, ensuring that the height difference at both ends of a 10-meter span gate does not exceed 3 millimeters. It is particularly suitable for scenarios requiring high balance, such as radial gates and flat gates.
Structural Components
It includes a motor, reducer, drum, wire rope, lift-point device, and control system. The motor typically employs variable frequency speed regulation, with the reducer achieving a transmission efficiency of over 95%. The drum surface features spiral grooves to ensure orderly arrangement of the wire rope. The dual lift-points operate synchronously via a rigid connecting shaft, with errors controlled within 5 millimeters.
Working Principle
Two independent winch systems synchronously wind or release the wire rope, converting vertical lifting force into gate movement. A stroke limit device precisely controls the opening degree, while a load sensor monitors load changes in real-time, activating automatic protection when overload exceeds 15%.
Advantages
Synchronous Control: Suitable for 10-meter span gates with a height difference of no more than 3 millimeters at both ends.
Modular Design: Reduces installation time by 30%, allowing faulty modules to be individually disassembled during maintenance.
Dual Braking System: Combines electromagnetic and hydraulic braking, ensuring gate position remains locked even during power outages.