The common hydraulic machine body structure is a three-beam four-column transmission type. The forged hydraulic press is now taken as an example.
The power system mainly provides the high-pressure liquid required for the hydraulic machine body to work and receives the low-pressure liquid that is returned to the return process. In addition, the working fluid is detected, filtered, stirred and cooled to ensure that the working fluid is in an excellent working condition. The power system is divided into two types: pump direct drive and pump accumulator drive.
The hydraulic control system mainly transfers the high-pressure liquid provided by the power system to the required working cylinder at an accurate time and place, and returns the low-pressure liquid discharged from each cylinder to the power system. The hydraulic control system mainly consists of various valves, valve boxes, link pipes, and control parts for the correct operation of the control valve. The simple control system is completed by the hand through the joystick, which is very laborious and is currently only used for small and simple hydraulic presses. In general, the hydraulic machine can easily operate the valve by an electromagnet or a follow-up relay device. In recent years, computer control has been added, which has greatly improved the accuracy and automation of control. The working cycle of the hydraulic press generally includes stop, flush stroke, working stroke and return stroke. The above different trips are basically composed of a hydraulic control system and a hydraulic control system.
Providers: Zhengzhou Hongda Forging Machinery Co., Ltd.
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