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Sliding vane pump

A technology of sliding vane pumps and sliding vanes, which is applied in the direction of pumps, rotary piston pumps, rotary piston machines, etc., and can solve problems affecting pump working efficiency and high-pressure gas leakage

Inactive Publication Date: 2012-10-10
肖雷明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such gaps easily cause the high-pressure gas in the pressure-stabilizing working chamber to leak into the suction chamber and compression chamber in the variable-pressure working chamber, which affects the working efficiency of the pump, and its structural disadvantages also need to be improved.

Method used

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  • Sliding vane pump
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  • Sliding vane pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Embodiment 1: As shown in Figure 1: the sliding vane pump of the present invention is combined into the casing of the pump by the pump casing 1 and the lip seal ring 13 of the rotating shaft, wherein all parts of the pump casing 1 have been statically sealed before use. The bolts are fixedly connected, and the power is transmitted by the main shaft 10 in the middle, and a large cavity is formed between the casing of the pump and the main shaft. The two ends of the cylinder body of the piston power transmission controller 8 have cylinder end plates 8-5 positioned on the cylinder body with pins 8-6, and their inner diameters are equipped with mechanical seal dynamic rings 8-7 connected by pins 8-8 There are springs 8-9 between the end plate of the cylinder and the end plate of the cylinder. There are two sealing grooves on each end plate, and a sealing ring is installed between the end plate, the cylinder and the mechanical seal dynamic ring 8-7. Sealing, the end faces of...

Embodiment 2

[0093] Example 2: Figure 16 It is the radial B-B section view of another sliding vane pump, with Figure 16 Based on the structure shown in Figure 13-15, another embodiment of the present invention will be further described. Another sliding vane pump is based on the structure described in Embodiment 1, and the setting position of the exhaust valve plate is adjusted. In order to adjust, the structure of the corresponding part of the cylinder, piston and segmented slide group is adjusted. Another type of split vane pump structure: the left side of the corresponding exhaust port in the cylinder chute A opened on the upper part of the cylinder 3a is sequentially fitted with the exhaust valve plate 3a-3 and the exhaust channel patch 3a-2, set the chute patch group 3a-1 on the right side of the corresponding suction port in the chute, and the rest of the cylinder chute is the slide chute A1. The reset exhaust valve plate 3a-3 and the exhaust channel patch 3a-2 are part of the cyl...

Embodiment 3

[0095] Example 3: Figure 23 It is another radial B-B sectional view of a sliding vane pump, with Figure 23 As shown in FIG. 17-22 and FIG. 24 , another embodiment of the present invention will be further described. Another structure of the sliding vane pump: the work of the sliding vane pump is taken clockwise as an example. The inner diameter surface of the cylinder body 3b is also an arc surface with R1 as the radius. The intersecting part of the internal diameter surface is used as the starting point of the correction surface to be transformed on the cylinder internal diameter surface, and the correction surface is an arc surface with a radius of R6. Combining the starting point of the correction surface and the radius of the correction surface, determine a certain point on the axis of the cylinder 3b as the axis center, and the arc with R6 as the radius faces the chute patch 3b that is close to the left side of the chute A- 2 The end face of the inner diameter surface ...

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Abstract

The invention relates to the technical field of a pump. The pump is characterized in that correcting planes and matched correcting planes are arranged on the surface of the inner diameter of a cylinder body and the surface of the outer diameter of a piston; a fitting operation process is performed between the two combination planes in the operation of the pump; an end cover is provided with a radial matched seal surface which fits and seals the two axial ends of the cylinder body and the piston; the axial position of a sliding vane general groove extends to the opening of the end cover from asliding vane sliding groove in the cylinder body or the piston; a fragmented sliding vane group which is decomposed into a left part and a right part is tightly fitted with the two side faces of the sliding vane general groove on the left and right; the operating end face of the sliding vane group is fitted with the correcting plane of the cylinder body or the matched correcting plane of the piston or slides in a fitting manner; an air discharge valve piece is arranged on the correcting plane or the matched correcting plane; and the radial matched seal surface of the end cover or the opening side face of the end cover is used as a valve seat of the air discharge valve piece. The sliding vane pump has the advantages of long service life, strong operating ability, low limit pressure, great compression ratio, high efficiency, low noise, small volume and the like, and the pump manufacturing and processing technique is simple.

Description

technical field [0001] The invention relates to a sliding vane pump. Background technique [0002] All existing positive displacement pumps in the world such as reciprocating pumps, sliding vane pumps, slide valve pumps, trochoidal pumps, Roots pumps, screw pumps, etc., cannot completely solve the structural problem in the variable pressure working chamber at the same time. The remaining exhaust clearance in the exhaust chamber; and the two major problems of leakage caused by the necessary working clearance between the components that make up the variable pressure working chamber and that are to be moved relative to each other. [0003] The traditional sliding vane pump includes main components and devices such as pump housing, cylinder body, piston, end cover, sliding vane and eccentric wheel device for driving the piston movement. The inner diameter surface of the cylinder is a cylindrical cylinder, and the cylinder is equipped with The outer diameter of the piston is cyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/356
Inventor 肖雷明
Owner 肖雷明