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List of the catalogue of this article:

• 1,casino plus free 100 Why is hydraulic pressure so strong and what is its working principle 么
• 2, What is the schematic diagram of the hydraulic system fast forward-fast forward-fast forward?
• 3, What is the meaning of each symbol in the hydraulic schematic diagram?

Why is the hydraulic pressure so strong and what is its working principle

Its principle is similar to the lever principle. Because in hydrostatics, liquid cannot be compressed, which will cause pressure to move back and forth in the liquid, and small pressure can be realized to control large pressure.

This phenomenon illustrates a basic principle of hydraulic transmission - pressure is determined by load.

Pascal's law: The pressure applied to the sealed liquid can be transmitted in all directions with the same size. Because liquid has such characteristics, it can be used to make hydraulic presses and hydraulic transmission devices.

What is the schematic diagram of the hydraulic system fast forward-fast forward-fast forward?

Hydraulic system fast forward-fast forward-fast retreat schematic diagram: The function of the hydraulic system is to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely power parts, actuators, control parts, auxiliary parts accessories and hydraulic oil. Hydraulic systems can be divided into two types: hydraulic transmission system and hydraulic control system.

The working principle of the hydraulic system is shown in the figure. A complete hydraulic system consists of five parts, namely power components, actuators, control components, no parts and hydraulic oil. The function of the power element is to convert the mechanical energy of the prime mover into the pressure energy of the liquid, which refers to the oil pump in the hydraulic system, which provides power to the entire hydraulic system.

Fast forward+-+-work forward+---fast retreat-++-in place---(+)-stop unloadingLoad-(+)-(+)-(+)++ represents the corresponding electromagnet score, - represents the corresponding electromagnet power failure; -(+) represents the electromagnet score is power failure.

There is no pressure to fast forward and fast forward, but to have a large flow rate, and a large pump can satisfy it. When working, don't be too fast, but the pressure should be high, because at this time, if the workpiece has been pressed, there will be pressure, and it can't be faster. A small pump can satisfy you.

Design, installation, commissioning and operation of the hydraulic device hydraulic system controlled by YL-381A type plc. Content: The design can realize the hydraulic system of "fast forward-progress-stay-fast retreat-stop in place".

What is the meaning of each symbol in the hydraulic schematic diagram?

1. Hydraulic schematics refer to graphic symbols used to express the interrelationship, working principle and working performance between various hydraulic components of the hydraulic transmission mechanism.

2. P generally refers to the oil inlet, T refers to the return oil outlet, K refers to the control oil intersection, and L refers to the oil discharge port. The function of the hydraulic system is to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely power components, actuators, control components, auxiliary components (accessories) and hydraulic oil.

3. The meaning of the graphic symbol of the hydraulic valve is represented by a square, and several digits are several squares. Through-↑not-through-┴,┬, the beginning and end of the arrow and the blocking symbol have several intersections with a square, which is several passes. P, A, B and T have fixed directions.

4. Basic symbols of hydraulic schematic diagram: continuation table;Continued table; The drawings are the standard pneumatic and hydraulic component diagrams of the Ministry of Machinery Industry, which are mainly used for drawing hydraulic schematics and pneumatic schematics. It contains commonly used hydraulic symbols and commonly used air pressure symbols. Commonly used hydraulic symbols include: control mechanism and universal control valve.