Hydraulic cutting machine working principle

Hydraulic transmission: it uses hydraulic oil as the medium. Through the power component (oil pump), the mechanical energy of the original thought is changed into the pressure energy of the hydraulic oil, and then the components are controlled, and then the pressure is applied by the implementation component (cylinder or oil motor). It can be converted into mechanical energy, drive the load to realize linear or rotary operation, and adjust the force and speed of the implementation component by remotely controlling the control element and adjusting the flow rate. When the outside world is disturbed by the above system, the output of the implemented component usually deviates from the original set value, and a certain error occurs.

Hydraulic control: Like the hydraulic transmission, the system also collects power components, control components, and implementation components, and also reports power through the process fluid. The difference between the two is that the hydraulic control has feedback assembly, and the feedback assembly is dip-dyed by the output of the component (displacement, speed, force, etc.), feedback and input (can be changed, but also constant) Fighting, using the shortcomings of the fighting force to control the system, so that the output of the implementing component changes or is constant with the change of the input amount. It is a hydraulic transmission system that forms a closed loop, also known as a hydraulic servo system or a hydraulic servo system.

The top of the hydraulic transmission system is an on-off or logic-controlled component. For its control policy, it is the purpose of connecting the stable or purely conversion target of the set value and is also called constant temperature control.

The hydraulic control system uses servo control components, has a feedback structure, and is controlled by the electrical assembly. It has high control precision and response speed, and the controlled pressure and flow rate are continuously changed continuously. The output power can be put up.

Proportional control is a kind of control between the two. The proportional control valve is a new type of electro-hydraulic control element developed on the root of the on-off control element and the servo control element. Some of the features of the class components, which are used for hand-switched on-off control, do not meet the requirements but do not require the servo valve to be as harsh as the hydraulic system.