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Single-action type variable vane pump

A vane pump, single-acting technology, used in rotary piston pumps, pumps, rotary piston/oscillating piston pump components, etc., can solve the problem of difficult to provide high power and liquid flow, variable pump sealed cavity single , complex structure and other problems, to achieve the effect of reducing impact, large flow, and soft flow adjustment

Inactive Publication Date: 2017-05-31
SHAANXI FAST GEAR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing variable pump has a single sealed cavity and limited volume, and it is difficult to provide high power and liquid flow in a working environment with a compact space layout.
The existing variable pump also has the problem of complex structure in the adjustment of eccentricity

Method used

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  • Single-action type variable vane pump
  • Single-action type variable vane pump

Examples

Experimental program
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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0021] see figure 1 , a single-acting variable vane pump, comprising a pump body 1, a oscillating body 5 is rotatably connected to the pump body 1, a pump shaft 7 is arranged in the oscillating body 5, and the pump shaft 7 and the oscillating body 5 are eccentrically arranged, and the pump shaft A number of pump shaft grooves are evenly arranged on the circumference of 7, and each pump shaft groove is provided with a blade 8, and the other end of the blade 8 is connected to the blade rotating groove 6, and the blade rotating groove 6 and the swing body 5 are arranged concentrically, and the pump The body 1 is also provided with an elastic piece that cooperates with the lower part of the swing body 5. The elastic piece includes a spring column 4 fixed on the inner wall of the pump body 1. The other end of the spring column 4 cooperates with the bottom of the swing body...

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PUM

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Abstract

The invention discloses a single-action type variable vane pump which comprises a pump body. A swing body is rotationally connected into the pump body. A pump shaft is arranged in the swing body. The pump shaft and the swing body are eccentrically arranged. Multiple pump shaft grooves are formed in the circumferential direction of the pump shaft. A vane is arranged in each pump shaft groove, the other ends of the vanes are connected to a vane rotating groove, and the blade rotating groove and the swing body are concentrically arranged. An elastic part matched with the lower portion of the swing body is further arranged in the pump body. The lower portion of the pump body and the upper portion of the pump body are provided with an inlet and an outlet correspondingly. According to the single-action type variable vane pump, the displacement of the pump is adjusted by changing the eccentric distance between the pump shaft and the swing body, and compared with other variable pumps with the same volume, the single-action type variable vane pump is larger and more stable in flow, more flexible in flow adjustment and free of impacts.

Description

technical field [0001] The invention belongs to the field of quantitative pumps, in particular to a single-action variable vane pump. Background technique [0002] Hydraulic pumps have the advantages of high power, small size, high power density, stable operation, stepless speed regulation and easy overload protection, etc., and are widely used in industrial production. The variable pump can match the output flow of the pump with the energy demanded by the system and reduce energy loss, so the research on the variable pump is necessary. [0003] Variable displacement pumps refer to pumps with variable displacement. Variable displacement pumps are divided into single / double acting vane pumps, radial piston pumps, axial piston pumps, etc. The single-acting vane pump changes the displacement of the pump by changing the eccentricity of the stator and the rotor, and changes the suction and pressure ports of the pump by changing the direction of the eccentricity of the stator an...

Claims

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Application Information

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IPC IPC(8): F04C2/344F04C15/00F04C14/22
CPCF04C2/3441F04C14/22F04C15/00F04C2240/20
Inventor 陈俊宇王伟健
Owner SHAANXI FAST GEAR CO
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