Honggang Hydraulic Cutting Machine Hydraulic Transmission: It uses hydraulic oil as the working medium, and converts the mechanical energy of the prime mover into the hydraulic oil pressure energy through the power element (oil pump). ) Convert pressure energy into mechanical energy, drive the load to realize linear or rotary motion, and set the force and speed of the actuator through remote control of the control element and adjustment of the flow rate. When the outside world disturbs the above system, the output of the actuator will generally deviate from the original setting value, resulting in a certain error.
Honggang's hydraulic cutting machine hydraulic control: Like hydraulic transmission, the system also includes power components, control components, and actuators, which also transmit power through oil. The difference between the two is that the hydraulic control has a feedback device. The role of the feedback device is to feedback the output of the actuator (mechanical quantities such as displacement, speed, force, etc.) and the input (which can be variable or constant). For comparison, use the deviation after comparison to control the system, so that the output of the actuator changes or remains constant with the change in the input amount. It is a hydraulic transmission system that forms a closed-loop circuit, also called a hydraulic follow-up system or a hydraulic servo system.
On-off or logic control elements are used in the hydraulic transmission system. For its control purpose, it is to maintain the stability of the set value or simply change the direction. It is also called fixed value and sequence control element.
In Honggang cutting machine hydraulic control system, servo control elements are used, which have a feedback structure and are controlled by electrical devices. They have high control accuracy and response speed, and the pressure and flow rate they control often change continuously. The output power can be amplified.
Proportional control is a kind of control between the above two. The proportional control valve used is a new type of electro-hydraulic control element developed on the basis of on-off control element and servo control element. It has both of the above two types. Some of the characteristics of the components are used for occasions where the on-off control manually adjusted cannot meet the requirements, but also does not require the servo valve to have strict pollution control requirements for the hydraulic system.
Honggang cutting machine hydraulic circuit:
The basic hydraulic circuit is a circuit composed of certain hydraulic components and accessories that can perform a specific function. Any hydraulic system can be divided into several hydraulic basic circuits. For the basic circuit of the same function, there are multiple ways to achieve it.
It should be noted that the structure and working principle of the hydraulic elements and accessories used in the circuit must be accurately grasped, and combined with the various working conditions of the hydraulic system during the work, specific analysis is performed to see whether the selected elements and accessories can meet the circuit work. Need.
In some hydraulic circuits, the same hydraulic component is sometimes required as a hydraulic pump and sometimes as a hydraulic motor. Obviously, not all hydraulic pumps or hydraulic motors can meet this requirement.
The characteristics of the Honggang hydraulic cutting machine are: when the punching head acts on the workpiece through the die, the pressure in the acting cylinder does not reach the rated pressure, and the pressure will increase with the time of contact (cutting into the work). Until the electromagnetic reversing valve receives the signal, the reversing valve reverses, and the punching head starts to reset; at this time, the pressure in the oil cylinder may not reach the set rated pressure value due to the limitation of the pressure oil time entering the oil cylinder; In other words, before the system pressure reaches the design value, punching is completed.
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