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What are the characteristics of Danfoss hydraulic pump

2023-04-12


Voss hydraulic pump manufacturers believe that the hydraulic pump is a hydraulic power component that provides a certain flow and pressure for the hydraulic system, and is an indispensable core component of the hydraulic system. The reasonable selection of hydraulic pump is very important to reduce the energy consumption of hydraulic system, improve the efficiency of the system, reduce the noise, improve the working performance and ensure the reliable operation of the system.

Voss hydraulic pump manufacturers believe that the hydraulic pump is a hydraulic power component that provides a certain flow and pressure for the hydraulic system, and is an indispensable core component of the hydraulic system. The reasonable selection of hydraulic pump is very important to reduce the energy consumption of hydraulic system, improve the efficiency of the system, reduce the noise, improve the working performance and ensure the reliable operation of the system.

  Danfoss hydraulic pumpThe manufacturer believes that the principle of selecting a hydraulic pump is: first determine the type of hydraulic pump according to the working condition, power and system performance requirements of the host, and then determine its specifications and models according to the pressure and flow required by the system.

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  Danfoss hydraulic pumpManufacturers believe that in general, due to the different characteristics of various hydraulic pumps, their structure, function and working methods are also different. Therefore, the appropriate hydraulic pump should be selected according to different occasions. In the hydraulic system of the machine tool, the double-acting vane pump and the pressure-limiting variable vane pump are generally used. In agricultural machinery, port machinery and small construction machinery, gear pumps with strong anti-pollution ability are often used. In heavy load, high power occasions, often choose piston pump.

  Danfoss hydraulic pumpThe manufacturer thinks that the matters needing attention in the application of hydraulic pump:

1. Try to avoid starting the hydraulic pump with load;

2. When piping, attention should be paid to avoid excessive oil suction resistance of the hydraulic pump;

3. The built-in relief valve of the hydraulic pump is not suitable for system pressure adjustment, only for safety valves;

4. It should be prevented that the oil discharge pipes of several pumps are combined into a pipe of equal diameter and then lead to the oil tank;

5. Avoid connecting the oil discharge pipe of the hydraulic pump with the main oil return pipe of the system;

6. Hoses or plastic pipes should be avoided as the suction pipe of the pump;

7. Avoid the zui high part of the oil pipe connected to the oil discharge port on the pump body of the hydraulic pump to be lower than the axis of the pump;

8. The installation position of the plunger pump should be lower than the liquid level of the oil tank;

9. The outlet of the main safety valve of the system and the drain pipe of the hydraulic pump should not be directly connected with the suction pipe of the hydraulic pump;

10. It is strictly prohibited for the coaxial degree of the hydraulic pump shaft and the prime mover shaft to be out of tolerance after assembly.

  Danfoss hydraulic pumpThe manufacturer believes that the gear pump is a rotary pump that delivers liquid or pressurized by the change and movement of the working volume formed between the pump barrel and the meshing gear. The two enclosed spaces are composed of two gears, the pump body and the front and rear covers. When the gear rotates, the space volume on the gear disengagement side changes from small to large, forming a vacuum and sucking away the liquid, and the space volume on the gear meshing side changes from large to small, thereby squeezing the liquid into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure at the outlet of the gear pump depends entirely on the resistance at the pump outlet.

Danfoss hydraulic pump manufacturers believe that as the power actuator of construction machinery, the efficiency and control characteristics of hydraulic pump directly affect the parameter matching, energy utilization rate, heat generation, vibration, impact and operation quality of the power system, and have a great impact on the dynamic performance and economic performance of the whole machine. It is one of the key issues to be considered in the matching of power and energy-saving parameters.


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