Yuansheng quality assurance marine 30 ton hydraulic winch Hydraulic winch   The lifting mechanism of hydraulic transmission can be divided into the following forms:   Hydraulic winches are mainly winches with large rated load
Generally, winches of more than 10t to 5000t are designed as hydraulic winches
Its structure is mainly composed of hydraulic motor (low-speed or high-speed motor), hydraulic normally closed multi disc brake, planetary gear box, clutch (optional), drum, support shaft, frame, rope press (optional), etc
The hydraulic motor has high mechanical efficiency and large starting torque
It can be equipped with different flow distributors according to the working conditions
It can also be designed according to the needs of users
For example, the valve group with balance valve, overload valve, high-pressure shuttle valve, speed regulating reversing valve or other performance, the brake, planetary gear box, etc
are directly installed in the drum
The drum, support shaft and frame are designed according to the mechanical requirements, The overall structure is simple and reasonable with sufficient strength and rigidity
Therefore, this series of winches has the characteristics of compact structure, small volume, light weight, beautiful appearance, etc
, and has the characteristics of good safety, high efficiency, large starting torque, good low-speed stability, low noise, reliable operation, etc
in terms of performance
It is worth mentioning that the high volumetric efficiency of the hydraulic motor and the high-quality balance valve of Sun company in the United States have solved the secondary sliding and empty hook shaking phenomena of the general drawworks, making the lifting, lowering and braking process of this series of hydraulic drawworks stable, and the drawworks with clutch can also be lowered freely
The integrated valve group installed on the valve plate effectively simplifies the user's hydraulic system
Due to the above advantages, this series of winches are widely used in shipbuilding, railway, engineering machinery, petroleum, geological exploration, metallurgy and other industries, and its excellent performance has been recognized by users Due to the different types of hydraulic motors selected, the hydraulic lifting mechanism can be divided into high-speed hydraulic horse   There are two types of transmission, i
e
DC drive and low-speed high torque motor drive The high-speed hydraulic motor drive needs to drive the hoisting drum through the reducer
Reducer can adopt batch   Standard reducers for mass production usually have cylindrical gear, worm gear and planetary gear reducers   Device
This type of transmission is characterized by its light weight, small volume and high volumetric efficiency Low production cost
However, the whole hydraulic lifting mechanism is heavy and bulky The low-speed high torque motor drive can drive the hoisting drum directly or through one-stage open cylindrical gear
Although the low-speed motor has a large volume and weight, it does not need a reducer, which makes the weight of the entire hydraulic lifting mechanism   Reduced volume
It has the advantages of simple transmission, few parts, good starting performance and braking performance, and good hydraulic   The pollution sensitivity of pressurized oil is small
Shell rotating inner curve radial piston low-speed high torque motor, which can be installed   Inside the drum, the motor shell directly drives the drum to rotate, which has a simple and compact structure and is convenient for layout Therefore, the hydraulic motor and brake are arranged on the same side of the drum, and the planetary reducer is installed on the drum   Inside
This arrangement has the advantages of small volume, compact structure, good symmetry and easy maintenance and debugging   Point