The common hydraulic system is mainly composed of two parts: signal control and hydraulic power in the process of operation. The signal control part is used to drive the control valve action in the hydraulic power part. The hydraulic power part is represented by a circuit diagram to show the relationship between different functional elements.
The hydraulic source in portable concrete vibrator Factory the hydraulic system contains hydraulic pump, hydraulic auxiliary components and electric motor, and the hydraulic control part contains its various control valves, which are mainly used to control the flow, pressure and direction of the working oil during use; the execution part contains Hydraulic cylinder or motor, which can be selected according to actual requirements.
In the process of analysis and design of the hydraulic system, a block diagram is generally used to display the actual operating conditions in the equipment. The hollow arrows represent the signal flow, and the solid arrows represent the flow.
The sequence of actions in the basic hydraulic circuit - the reversing and spring return of the control element (two-position four-way reversing valve), the extension and retraction of the actuator (double-acting hydraulic cylinder), and the opening and closing of the relief valve.
Hydraulic system According to the working principle of the system, you can number all circuits in sequence. If the first actuating element number is 0, then the control element identifier associated with it is 1.
If the element identifier corresponding to the actuator extension is an even number, the element identifier corresponding to the actuator retraction is an odd number. Not only the hydraulic circuits should be numbered, but the actual equipment should also be numbered in order to detect system failures.
How to design the hydraulic system of common hydraulic cylinders? The following hydraulic cylinder manufacturers will introduce to you.
The design process of the hydraulic system and the design requirements The hydraulic transmission system is a part of the hydraulic cylinder. The design of the hydraulic transmission system should be carried out at the same time as the overall design of the main engine.
When designing hydraulic cylinders, manufacturers must proceed from reality, organically combine various transmission forms, give full play to the advantages of hydraulic transmission, and design maintenance with simple structure, reliable operation, low cost, high efficiency, and simple and convenient operation. Hydraulic transmission system.
First, the design steps of the hydraulic system:
1. Determine the form of the hydraulic actuator;
2. Formulate a basic plan and make a schematic diagram of the hydraulic system.
3. Select hydraulic components;
4. Check the performance of the hydraulic system;
5. Draw working diagrams and prepare technical documents.
2. Clarify the design requirements
Design requirements are the foundation of every engineering design. Before developing the basic plan, the hydraulic cylinder manufacturer must understand the design requirements and other aspects related to the design content, and further design the various parts of the hydraulic system.
1. Mainframe overview: use, performance, process flow, operating environment and overall layout.
2. What actions, sequence of actions and interlocking relationship should the hydraulic system complete?
3. The movement and speed of the hydraulic drive mechanism.
4. The size and nature of the load of each action mechanism.
5. Requirements for speed range, motion stability and conversion accuracy.
6. Requirements for automation programs and operation control methods.
7. Requirements for dustproof, explosion-proof, cold-proof, sound insulation, safety and reliability.
8. Requirements for efficiency and cost
3. Formulation of the basic plan
After the hydraulic cylinder manufacturer determines the hydraulic actuator, the control of its movement direction and speed is the core issue of the development of the hydraulic circuit.