A direct-operated hoist is a mechanical device that drives the gate open or closed directly through a screw rod. It is widely used in water conservancy, hydropower, municipal construction, and farmland irrigation. Below are its main features and related information:
Core Features
?Compact Structure?: Utilizes a worm gear speed reduction mechanism, with the screw rod directly driving the gate’s lifting and lowering. It is easy to install and occupies minimal space. [1 Dual-Power Type Supports both manual and electric operation, with hand-electric interlocking to ensure operational safety. ?
Functional Safety?: Equipped with bidirectional overload shutdown to prevent damage from overloading; the limit system is precise, with an error margin of no more than 1 cm, avoiding top gate accidents. ?
Automation and Manual Compatibility?: Supports both electric and manual operation, comes with a dedicated wrench, and features anti-overflow functionality, making it suitable for environments without power supply. ?
Common Types
?Manual Type?: Driven by human power, simple in structure, suitable for small-scale projects. ?
Electric Type?: Motor-driven, more efficient, supports remote control, suitable for large-scale water conservancy projects. ?
Installation and Maintenance
?Parameter Confirmation?: Key parameters such as screw rod length, lifting point distance, and electrical control requirements must be confirmed in advance. ?
Debugging Steps?:
After installation, perform a no-load test to check operational smoothness and limit accuracy. ?
Adjust the travel switch position to ensure automatic shutdown when the gate reaches the upper or lower limit. ?
Common Faults?: Avoid operational errors (such as reverse operation) or foreign object jams that may cause top gate accidents. Regular inspection of limit devices and lubrication systems is necessary.