Manhart How does the hydraulic transmission system of a punching and shearing machine work?

The working principle of the hydraulic transmission system of a punching and shearing machine can be clearly expressed and summarized as follows:
1. **Energy conversion**:
– The core principle of the hydraulic transmission system is to use a hydraulic pump to convert the mechanical energy of the prime mover (such as an electric motor) into the pressure energy of the liquid.
– The liquid in the system, usually mineral oil, transfers energy as a working medium.
2. **Energy transfer**:
– The converted liquid pressure energy can be transmitted through various control valves and pipelines.
– The control valve is used to control the flow, direction and pressure of the liquid to ensure that the system works according to the predetermined requirements.
3. **Energy reconversion**:
– The liquid pressure energy is finally converted into mechanical energy through hydraulic actuators (such as hydraulic cylinders or motors).
– The hydraulic cylinder or motor drives the working mechanism (such as the punch and die of the punching and shearing machine) to work.
4. **Working of the punching and shearing machine**:
– In the punching and shearing machine, the hydraulic system provides strong power for the shearing die.
– When the system receives a shearing command, the hydraulic pump starts working and pushes the hydraulic oil into the hydraulic cylinder.
– The piston of the hydraulic cylinder is pushed by the pressure of the oil, driving the punch to move downward.
– The punch cooperates with the die to apply shear force to the straight steel placed between the two to complete the shearing action.
5. **System Features**:
– The hydraulic transmission system makes the punching and shearing machine have the advantages of strong power, safe operation, light weight and low noise.
– Due to the stability of liquid transmission, the shearing process of the punching and shearing machine is more stable and precise.
– The hydraulic transmission system also has good speed regulation and overload protection capabilities, which can adapt to different shearing needs.
In summary, the hydraulic transmission system of the punching and shearing machine provides a stable and reliable power source for the punching and shearing machine through the process of energy conversion, transmission and re-conversion, ensuring the accuracy and efficiency of the shearing process.