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Double-acting impeller pump

An impeller pump, double-acting technology, used in pumps, pump components, rotary piston pumps, etc., can solve the problems of large backflow, high noise of vane pumps, large pump vibration, etc., to achieve reduced requirements, good wear resistance, The effect of reducing the speed

Active Publication Date: 2014-04-16
NINGBO YINZHOU JINBEN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the vane pump mentioned above, the blades move due to the rotation of the rotor. The fluid is introduced into the blade back pressure chamber and pushes the blades to the inner circumference of the stator. Therefore, the rotor speed is relatively high, and the high speed will cause the noise of the vane pump to be loud and lead to Large backflow, large vibration of the pump body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Carbon steel is selected as the raw material, sawed according to the shape and specification of the blade in the double-acting impeller pump, and formed into a blade blank after forging; wherein, the composition and mass percentage of the carbon steel are: C: 0.22%, Si: 0.17%, Mn: 0.50%, Cr: 0.25%, Ni: 0.30%, Cu: 0.25%, and the balance is Fe and unavoidable impurities.

[0068] The above-mentioned blade blanks were normalized at 860°C for 50 minutes. After normalizing, they were water-cooled at 70°C until the blade temperature was 300°C, and then air-cooled.

[0069] Rough machining and semi-finishing of the above-mentioned blade blank after normalizing treatment, and then carburizing and quenching, and finishing after carburizing and quenching treatment, to obtain a semi-finished blade; wherein, the carburizing temperature is 920°C, the carburizing time is 45min, the infiltration agent is methane gas infiltration agent, the quenching temperature is 820°C, and the quenc...

Embodiment 2

[0072] Select carbon steel as the raw material, saw and cut according to the shape and specification of the blade in the double-acting impeller pump, and form the blade blank after forging; wherein, the composition and mass percentage of the carbon steel are: C: 0.25%, Si: 0.27%, Mn: 0.60%, Cr: 0.20%, Ni: 0.25%, Cu: 0.20%, and the balance is Fe and unavoidable impurities.

[0073] Normalize the above-made blade blanks at 895°C for 60 minutes. After normalizing, water-cool at 75°C until the blade temperature is 350°C, and then air-cool.

[0074] Rough machining and semi-finishing of the above-mentioned blade blank after normalizing treatment, and then carburizing and quenching, and finishing after carburizing and quenching treatment, to obtain a semi-finished blade; wherein, the carburizing temperature is 930°C, the carburizing time is 60min, the infiltration agent is kerosene liquid infiltration agent, the quenching temperature is 850°C, and the quenching time is 30min.

[00...

Embodiment 3

[0077] Carbon steel is selected as the raw material, sawed according to the shape and specification of the blade in the double-acting impeller pump, and formed into a blade blank after forging; wherein, the composition and mass percentage of the carbon steel are: C: 0.29%, Si: 0.37%, Mn: 0.80%, Cr: 0.22%, Ni: 0.27%, Cu: 0.28%, and the balance is Fe and unavoidable impurities.

[0078] Normalize the above-made blade blanks at 930°C for 80 minutes. After normalizing, water-cool at 80°C until the blade temperature is 400°C, and then air-cool.

[0079] Rough machining and semi-finishing of the above-mentioned blade blank after normalizing treatment, and then carburizing and quenching, and finishing after carburizing and quenching treatment, to obtain a semi-finished blade; wherein, the carburizing temperature is 940°C, the carburizing time is 90min, the infiltration agent is alcohol liquid infiltration agent, the quenching temperature is 870°C, and the quenching time is 45min.

...

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Abstract

The invention provides a double-acting impeller pump, and belongs to the technical field of mechanical engineering. The problems of high noise and large pump body vibration of the traditional double-acting impeller pump are solved. The double-acting impeller pump comprises a front shell, a back cover, a stator, an oil outlet distribution disc, an oil inlet distribution disc and a rotating shaft, wherein a rotor which is installed on the rotating shaft is arranged in the stator; the cavity between the front shell and one side of the oil outlet distribution disc is formed into an oil inlet chamber, and the cavity between the back cover and the other side of the oil outlet oil distribution disc is formed into an oil outlet chamber; a plurality of guide grooves and blades formed in the guide grooves in a sliding mode are formed in the stator, every guide groove comprises a guide surface and a groove bottom which are mutually parallel, oil supply holes which are communicated with the groove bottoms are all formed in the oil inlet oil distribution disc and the oil outlet oil distribution disc, a pressure groove which intersects the guide grooves is arranged on the rotor, a plurality of through holes are formed in the oil outlet oil distribution disc, the through holes penetrate the oil outlet chamber, and the pressure groove and the through holes are placed on the same shaft diameter. The double-acting impeller pump has the advantages of small noise and low rotating speed.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering and relates to a double-acting impeller pump. Background technique [0002] When the rotor of the double-acting vane pump rotates, under the action of centrifugal force and pressure oil, the tip of the vane clings to the inner surface of the stator. The surface of the stator is composed of two long-radius arcs, two short-radius arcs and four transition curves. It consists of eight parts, and the stator and rotor are concentric. When the rotor rotates clockwise, the volume of the sealed working chamber gradually increases at the upper left corner and lower right corner, which is the oil suction area, and gradually decreases at the lower left corner and upper right corner, which is the oil pressure area; the oil suction area and the oil pressure area There is an oil seal area between the zones to separate them. The rotor of this pump rotates once, and each sealed working chamber com...

Claims

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Application Information

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IPC IPC(8): F04C2/344F04C15/00
Inventor 肖鹿
Owner NINGBO YINZHOU JINBEN MACHINERY
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