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  4. How does the hydraulic pump work?...

How does the hydraulic pump work?

  • How does the hydraulic pump work

    Hydraulic pump is a kind of energy changing equipment, it changes mechanical energy to hydraulic energy, is the power element in the hydraulic transmission system, provides the pressure oil for the system.Change the size of seal volume A periodically.When a grows from small to large, it forms part of vacuum, so that the oil in the oil tank under atmospheric pressure enters into the oil cavity A through the suction pipe jacking out the check valve 6, and the oil is finally absorbed.On the contrary, when a changes from large to small, the full oil in a cavity will push open check valve 5 into the system and end the pressure oil.So the hydraulic pump will be the prime mover input mechanical energy into the liquid pressure energy, the prime mover drive eccentric wheel rotation, the hydraulic pump will continue to absorb oil and pressure oil.Hydraulic pump features .

  • 1. With a number of sealed and can be periodically changed space.The output flow of the pump is proportional to the volume change momentum of this space and the number of changes in unit time, and has nothing to do with other factors
  • 2.The positive pressure of the liquid in the tank is necessary to be equal to or greater than the atmospheric pressure.This is the external condition under which a positive displacement hydraulic pump can draw in oil.Therefore, in order to ensure that the hydraulic pump can be normal oil absorption, it is necessary to communicate with the air tank, or choose a closed subtank.
  • 3. It has corresponding distribution arrangement.Separate the suction tank and discharge tank to ensure that the hydraulic pump has regular continuous suction and discharge of liquid CAM by the motor unit rotation.When the CAM propulsion plunger upward movement, the plunger and cylinder components of the sealing volume reduced, the oil from the sealing volume extrusion, through the one-way valve to the local demand.When the CAM rotates to the falling part of the curve, the spring forces the plunger down, to constitute a certain degree of vacuum, the oil in the tank under the action of atmospheric pressure into the sealing volume.CAM plunger constantly rise and fall, sealing volume periodically decreased and increased, the pump will continue to absorb oil and discharge oil.


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