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Volumetric vane pump

A vane pump and volumetric technology, which is applied in the direction of rotary piston pumps, pumps, rotary piston machinery, etc., can solve the problems of complex mechanism and unsolved vane compensation, and achieve the effect of avoiding leakage and improving sealing

Inactive Publication Date: 2005-12-28
丁桂秋 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its mechanism is relatively complicated, and it does not solve the problem of compensation after blade wear

Method used

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  • Volumetric vane pump
  • Volumetric vane pump

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Experimental program
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Effect test

Embodiment 1

[0011] The concentric volumetric vane pump of the present embodiment is shown in Figure 1 and Figure 2, wherein the stator and the outer end caps 2 and 3 whose outer ends are trapezoidal are connected by a plurality of bolts 12 to form a cavity, in which a The center is cylindrical, the two ends are trapezoidal, and the rotor 4 is concentric with the stator. There are two vane slots on the rotor 4. Trapezoidal vanes 5 and 6 are respectively installed in the vane slots. The vanes are connected to the vane slots by springs. The blades 5 and 6 can only slide radially in the blade grooves. The rotor 4 is connected to the rotating shaft 7 through bearings. The two ends of the rotating shaft 7 are respectively installed in the bearings 8 and 9 on the two end covers. Oil inlet hole 10 and oil outlet hole 11. The stator is a pear-shaped cavity stator, the blade slots are installed on the rotor along the axial direction, and the blades form an included angle of 0 degrees with the radia...

Embodiment 2

[0013] The difference between this embodiment and embodiment 1 is that there are four blade slots on the rotor, and the stator is a double-trimmed circular cavity stator, and two oil inlet and outlet holes are respectively provided at the corresponding positions, and the rest are the same.

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Abstract

The invention is about a positive displacement vane pump which includes stator, the pump hollow and the rotor, the vane. The shape of the outer of the vane and the pump hollow is big inside and small outer. So it can improve the leak tightness and avoid leaking.

Description

technical field [0001] The invention relates to a pump, more specifically a displacement vane pump, belonging to the technical field of fluid delivery facilities. Background technique [0002] At present, the general positive displacement vane pumps have single-acting or double-acting structural forms. The inner circular surface of the stator and the outer circular surface of the rotor are not concentric, so the blades can only be rectangular. End wear is not compensated and can easily lead to fluid leakage. [0003] According to retrieval, the Chinese patent titled non-contact vane pump and publication number 2556389 discloses a non-contact vane pump. The pump is provided with a small shaft extending from both sides of each sliding vane to both sides. A slide movement mechanism is arranged on both sides of the slide respectively. The slide movement mechanism includes a side plate with a circular track, a guide wheel inside the circular track, a needle bearing is installed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/344
Inventor 丁桂秋丁勇丁霞
Owner 丁桂秋