Commonly used opening and closing machines include hydraulic opening and closing machines and winch opening and closing machines. So the purpose and characteristics of the winch type: This series of winch type hoists is mainly suitable for opening and closing flat gates and lifting horizontal gates in water conservancy and power engineering. Under certain conditions, it can also open and close horizontal steel gates and transverse steel gates. This series of hoists has a compact structure, high load-bearing capacity, stable and reliable operation, and easy installation and maintenance.

Structural principle:

This series of hoists consists of an electric motor, coupling, transmission shaft, reducer, brake, open gear, drum part, master controller, frame, pulley and other parts (this type also has a speed controller device). The mechanical strength design of this series of hoists is calculated based on Q2 light working intensity. If used in ship locks or frequent opening and closing conditions, our company can carry out special design to meet the requirements of Q3 medium or Q4 heavy level.

There are many structural configurations for winch type opening and closing machines, and this type of switch can travel along straight or curved tracks. A hoist is a mechanical device used to operate blinds and cabinets. The basic requirements for turning on and off the machine are

① Safe and reliable operation

② Simple operation and maintenance

③ Simple structure, small size, light weight, beautiful appearance

④ Low manufacturing and maintenance costs. Opening and closing machines are divided into fixed and mobile types based on whether a walking mechanism is installed, and into manual drive, electric motor drive, and internal flexible machine drive based on the control mode. The transmission mode is divided into mechanical transmission and hydraulic transmission. The connecting components of the gate include flexible components such as steel wire ropes and chains. Screw, rack, piston rod screw, winch, and hydraulic opening and closing machines are fixed opening and closing machines. The mobile switch machine travels along the track and is a machine that combines multiple gates and anti fouling barriers to operate and maintain switch devices one by one. The screw type switchgear uses a power screw to lift and lower the gate leaf by rotating the load nut, achieving the purpose of opening and closing the gate. The volume of a single screw t is generally 320kN, and the stroke of a large screw can reach up to 750kN within 5m, which can reach 7~sm respectively. During the descent of the screw, it can apply a certain pressure to the gate. This switch has a simple structure, easy operation, and low cost. Its power is manual or electric, widely used in small hydropower projects. When using steel wire ropes as load-bearing components to lift and close the gate through pulleys and transmission devices in a winch type opening and closing system, it depends on the weight of the gate (including weight and water column weight, etc.). The structure is simple, easy to manufacture and maintain, and widely used in various hydropower projects. This type of switch has many structural configurations.