Commonly Used Hydraulic Pump Accessories Structure and Working Principle

1. The basic principle of plunger pump accessories: 

the volume of the cylinder is repeatedly changed by the hydraulic action of the plunger in the cylinder to inhale and discharge the fluid.

2. Working principle of hydraulic pump accessories: 

The rotation of the eccentric shaft is used to drive the movement of the plunger through the connecting rod device, and the circular rotation of the shaft is converted into the hydraulic movement of the plunger. The plunger continuously moves hydraulically, and the water absorption and water pressure processes of the hydraulic pump parts are continuously alternated with a special structure.

3. Working principle of water ring type Rexroth pump accessories: 

The impeller of the water ring type Youken A16 hydraulic pump accessories Rexroth pump parts blade is eccentrically installed in the cylindrical pump accessories shell. A certain amount of water is injected into the pump fitting. When the impeller rotates, the water is thrown to the pump fitting shell to form a water ring, and the inner surface of the ring is tangent to the impeller hub. Since the pump fitting shell and the impeller are not concentric, the air inlet space 4 between the right half hub and the water ring is gradually enlarged, thus forming a Rexroth, so that the gas enters the air inlet space in the pump fitting through the air inlet pipe. Then the gas enters the left half, and the pressure is increased due to the gradual compression of the volume between the hub rings, so the gas is discharged to the outside of the pump fittings through the exhaust space and the exhaust pipe.

4. The working principle of ELEPHANT FLUID POWER Rexroth pump accessories:

ELEPHANT FLUID POWER pump accessories work similarly to blowers. Due to the continuous rotation of the rotor, the pumped gas is sucked from the air inlet into the space V0 between the rotor and the pump fitting shell, and then discharged through the exhaust port. Since the V0 space is completely closed after suction, the gas in the pump fitting cavity is not compressed and expanded. However, when the top of the rotor turns over the edge of the exhaust port, and the V0 space is connected to the exhaust side, due to the high gas pressure on the exhaust side, a part of the gas is flushed back into the space V0, causing the gas pressure to suddenly increase. As the rotor continues to turn, the gas is expelled from the pump fittings.

5. In general, ELEPHANT FLUID POWER pump accessories have the following characteristics:

• Larger pumping speed in a wider pressure range;

• Quick start, can work immediately;

• Insensitive to dust and water vapor contained in the pumped gas;

• The rotor does not need to be lubricated, and there is no oil in the pump fitting cavity;

• The vibration is small, the rotor dynamic balance condition is good, and there is no exhaust valve;

• The driving power is small, and the mechanical friction loss is small;

• Compact structure, small footprint;

• Low operation and maintenance cost.