What are the components of the hydraulic power unit? What are the components of the hydraulic power unit?

Power unit oil tank manufacturer: What are the components of hydraulic power unit?

The selection of hydraulic power units plays different roles in different equipment. For hydraulic power units, the correct equipment selection mainly comes from the following aspects. The power unit oil tank manufacturer's editor will explain it to you.

Power unit fuel tank manufacturer: 1. Power part - converts the mechanical energy of the prime mover into hydraulic energy.

Power unit fuel tank manufacturer: 2. Execution part - converts the hydraulic pressure energy input by the hydraulic pump into mechanical energy to drive the working mechanism.

Power unit fuel tank manufacturer: 3. Control components - used to control and regulate the pressure, flow rate, and direction of the oil.

Manufacturer of power unit fuel tank: 4. Auxiliary part - Connect the first three parts together to form a system that functions as oil storage, filtration, metering, and sealing to ensure the normal operation of the system.

Each of these components is an important factor affecting the selection of hydraulic power units. Only by selecting these parts can we choose the correct equipment.

The intelligent hydraulic power unit is an intelligent hydraulic control system based on the principle of direct drive volume control system technology, with hydraulic cylinders as the executing components, integrating energy, control regulation, status monitoring, and auxiliary devices. In addition to the advantages of direct drive volume control technology, intelligent power units also have the functional characteristics of intelligent independent control, high integration, and strong universality.

Intelligent hydraulic power units can be used in industrial control systems that have certain requirements for position, speed, output, accuracy, and response frequency. Compared with digital cylinders and electric cylinders with similar functions, intelligent hydraulic power units have obvious cost-effectiveness advantages.

The key technologies and difficulties of the intelligent power unit electro-hydraulic servo system include low system dynamic response characteristics, dead zone nonlinearity caused by vacuum adsorption, and untimely oil supply. Therefore, it is necessary to optimize the system design from the following aspects.

1) Fine parameter matching design

The key to the dynamic characteristic indicators of intelligent hydraulic power unit systems is parameter matching. Based on the system mathematical model or simulation model, identify all parameters that affect the system characteristics. Through theoretical and simulation analysis, the laws and sizes of the influence of various parameters on the dynamic characteristics of the system are obtained, providing a basis for structural design and component selection.

2) No power boost oil injection

To solve the problem of vacuum absorption caused by delayed oil replenishment, the intelligent hydraulic power unit oil tank adopts a fully enclosed design, which uses a skin bag or spring to push the piston to pressurize, achieving non powered pressurized oil replenishment. At the same time, no matter how the actuator is placed, under the action of the skin bag or spring, it can ensure that the fuel tank can replenish the closed circuit normally.

3) Single pole constant speed without fuel tank

For some working conditions that require intelligent hydraulic power units to have the same forward and backward motion characteristics, a single rod constant speed hydraulic cylinder with equal positive and negative chamber action areas and built-in magnetostrictive displacement sensors can be used. This structure can also achieve system design without oil tanks, reduce the volume of intelligent hydraulic power units, decrease oil volume, and further improve the response characteristics of the system.