CN2929259Y

CN2929259Y - Vane pump

Info

Publication number: CN2929259Y
Application number: CN 200620087008
Authority: CN
Inventors: 李琢书
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-15
Filing date: 2006-07-15
Publication date: 2007-08-01
Anticipated expiration: 2016-07-15

Abstract

This utility model provides a vane pump, comprising a pump body, a pump cover, a rotary wheel and a rotation shaft of the rotary wheel in the pump body, characterized in that the inner chamber of the pump body is cylindrical, the upper and lower ends of the pump body are respectively provided with a pump cover, the rotary wheel in the pump body is a cam-shaped vane wheel, the wheel circumference of the vane wheel is provided with three evenly arranged sleek curved surfaces formed by connection of transitional wheel cam, micro-gap is remained between the longest radius of the vane wheel cam and the inner side wall of the pump body inner chamber, two pairs of imports and exports are symmetrically arranged on the inner chamber side wall of the pump body, an axial cylindrical calking groove is arranged on the inner side wall of the pump body inner chamber between every pair of import and export, every calking groove is embedded with a slide board cylindrical end, the inner side wall of the pump body inner chamber near the slide board is provided with one end of a compression spring, the other end of the compression spring is arranged on the corresponding slide board to constantly press the sharp and thin free end of the slide board upon the vane wheel circumference curved surface, the imports and exports at the sides are separated by the slide board and two chambers are formed on the two sides of the slide board. This utility model is simple in structure, easy in processing and fabrication, high in working efficient and high in discharge.

Description

Wing pump

Technical field

The utility model belongs to a kind of power-actuated oil hydraulic pump, is a kind of wing pump specifically.

Background technique

Existing oil hydraulic pump has various ways, gear pump, plunger pump, the vane pump of resembling commonly used, as: a plurality of blades of vane pump are radioactivity and are installed on the rotor frame, pump housing inner chamber is an elliptical cylinder-shape, with the rotation of motor drive vane, blade is to be embedded in the groove, can free telescopic slide.Its structure is comparatively complicated, and difficulty of processing is big, and working efficiency is lower, and flow is less.How to develop a kind of new pump, make it simple in structure, easy processing and fabricating, and also under equal volume, than existing hydraulic pump works efficient height, flow is big, and this has become the technical problem that needs to be resolved hurrily at present.

Summary of the invention

The purpose of this utility model is to provide a kind of wing pump at existing technical deficiency, and it is simple in structure, easy processing and fabricating, and also under equal volume, than existing hydraulic pump works efficient height, flow is big.

The utility model is achieved by the following technical solution: a kind of wing pump, comprise the pump housing, pump cover, runner and rotating shaft thereof in the pump housing, rotating shaft is stretched out an end from pump cover and is connected with drive unit, it is characterized in that described pump housing inner chamber is cylindrical, the pump housing is respectively installed a pump cover up and down, runner in the pump housing is a cam-shaped impeller, the protruding transition of wheel of Zhou Yousan uniform setting of impeller wheel is connected to form smooth curved surface, impeller is taken turns between protruding maximum radius place and the pump housing inner chamber madial wall and is kept micro-gap, being symmetrical arranged two pairs on pump housing intracavity sidewall advances, outlet, on the pump housing inner chamber madial wall between every pair of import and the outlet, an axial cylindrical shape caulking groove is set, respectively embed the cylindrical end of a slide plate in each caulking groove, each fixes an end of a stage clip to pump housing inner chamber madial wall near the slide plate place, the other end of stage clip withstands on the corresponding slide plate, make the thin free end of point of slide plate be pressed in impeller all the time and take turns on all curved surfaces, by slide plate advancing its both sides, outlet separates, and makes the slide plate both sides form two chambers.

Adjacent two wheels are protruding all at interval 120 ° on the described impeller, the inner chamber madial wall of pump housing outlet periphery is an inner concave arc surface, slide plate also is a cambered surface, 180 ° at interval of two outlets on the pump housing intracavity sidewall, 180 ° at interval of two imports, 180 ° at interval of two axial cylindrical caulking grooves on the pump housing inner chamber madial wall.

The described pump housing is a cylindrical shape, and pump cover comprises upper and lower disc pump cover, and pump housing sidewall and pump cover edge all vertically are provided with corresponding up and down bolt hole, with bolt the pump housing and pump cover are connected as a single entity, and impeller and slide plate are clipped between the upper and lower disc pump cover.

Two pipeline parallel connections that outlet picks out on the described pump housing sidewall, two pipeline parallel connections that import picks out on the pump housing sidewall.

The utility model has many advantages and good effect compared with prior art:

1, the impeller of the utility model wing pump has the protruding transition of wheel of three uniform settings to be connected to form smooth curved surface on wheel week, and impeller is an integral structure, and is simple in structure, compact, easily processing and fabricating.

2, there is the cylindrical end of a slide plate to embed in the axial cylindrical shape caulking groove on the wing pump inner chamber madial wall in the utility model wing pump, the thin free end of slide plate point is pressed on the impeller side curved surface under a stage clip effect all the time, separate by the inlet/outlet of slide plate, make the slide plate both sides form two chambers of A, B both sides.Rotate by the power plant drives impeller, make slide plate along all curved surface swings of wheel, the B chamber that slide plate one side is communicated with import becomes big gradually, form negative pressure, toward the interior imbibition body of B chamber, the slide plate opposite side diminishes gradually with the A chamber that outlet is communicated with, the A cavity indoor pressure increases, and effluxes liquid toward the A chamber.Two pipeline parallel connections that outlet picks out on the pump housing sidewall, two pipeline parallel connections that import picks out on the pump housing sidewall, under equal volume, the utility model wing pump is than existing hydraulic pump works efficient height, and flow is big.

Description of drawings

Fig. 1 is the utility model wing pump end face partial sectional view;

Fig. 2 is the utility model wing pump part section stereogram.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

Referring to Fig. 1, Fig. 2, a kind of embodiment of wing pump comprises impeller 2 in the pump housing 1, pump cover 6, the pump housing 1 and rotating shaft 5 thereof, slide plate 4, stage clip 3, and the rotating shaft 5 of impeller 2 is stretched out an end from pump cover 6 and is connected with drive motor.The described pump housing 1 is a cylindrical shape, and the pump housing 1 inner chamber is cylindrical.The pump housing 1 intracavity sidewall and disc pump cover 6 edges all vertically are provided with corresponding up and down bolt hole, with bolt the pump housing 1 and disc pump cover 6 are connected as a single entity, and impeller 2 and slide plate 4 are clipped between the upper and lower disc pump cover 6.Impeller 2 in the pump housing 1 is a cam face, arc surface wheel protruding (seeing the C place among Fig. 1) transition that impeller 2 is taken turns Zhou Yousan uniform setting is connected to form smooth curved surface, impeller 2 takes turns protruding maximum radius place and the pump housing 1 inner chamber madial wall keeps micro-gap, 120 ° at the protruding all intervals of two adjacent wheels.Be symmetrical arranged two pairs of inlet/outlet 8,7 on the pump housing 1 intracavity sidewall, two outlets 7 are 180 ° at interval on the pump housing 1 madial wall, 180 ° at interval of two imports 8.On the pump housing 1 inner chamber madial wall between every pair of import 8 and the outlet 7, an axial cylindrical shape caulking groove is set, 180 ° at interval of two axial cylindrical caulking grooves.Respectively embed the cylindrical end of a slide plate 4 in each axial cylindrical shape caulking groove, each fixes an end of a stage clip 3 to the pump housing 1 inner chamber madial wall near slide plate 4 places, the other end of stage clip 3 withstands on the corresponding slide plate 4, the thin free end of point of slide plate 4 is pressed on all curved surfaces of wheel of impeller 2 all the time, slide plate 4 two ends are taken turns with the pump housing 1 madial wall and impeller 2 respectively and are closely contacted in week, play sealing process, by slide plate 4 with its both sides advance 8 and outlet 7 separate, make slide plate 4 both sides form two chambers of A, B.

Each madial wall that exports 7 peripheries of the pump housing 1 is inner concave arc surface, and slide plate 4 also is a cambered surface, and both radian basically identicals, and slide plate 4 can embed the interior recess of outlet 7 peripheries.

Two outlet 7 pipeline parallel connections that pick out on the pump housing 1 sidewall, two are advanced the 8 pipeline parallel connections that pick out on the pump housing 1 sidewall.

Impeller 2 rotating shafts 5 one ends rotate by motor driving, and slide plate 4 is under stage clip 3 pressure effects, and the thin free end of its point is pressed in impeller 2 all the time and takes turns on all curved surfaces, and along with the rotation of impeller 2 by the diagram direction of arrow, slide plate 4 is taken turns all curved surface swings along impeller 2.A chamber in slide plate 4 one sides communicates with outlet 7, and the B chamber of opposite side communicates with import 8.When the liquid in the A chamber under the promotion of impeller 2, move in the direction of arrows, when moving to slide plate 4, stop that at slide plate 4 down, the pressure the A chamber in increases, volume reduces, liquid is exported through exporting 7; Simultaneously, B chamber volume increases thereupon, produces negative pressure, and liquid is sucked through import 8.When A chamber or B chamber do not communicate with outlet 7 or import 8, become closed chamber separately.Liquid is promoted until slide plate 4 by impeller 2 in the chamber, and under the stopping of slide plate 4, cavity indoor pressure increases, through exporting 7 outputs.

Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.

Claims

1, a kind of wing pump, comprise the pump housing, pump cover, runner and rotating shaft thereof in the pump housing, rotating shaft is stretched out an end from pump cover and is connected with drive unit, it is characterized in that described pump housing inner chamber is cylindrical, the pump housing is respectively installed a pump cover up and down, runner in the pump housing is a cam-shaped impeller, the protruding transition of wheel of Zhou Yousan uniform setting of impeller wheel is connected to form smooth curved surface, impeller is taken turns between protruding maximum radius place and the pump housing inner chamber madial wall and is kept micro-gap, being symmetrical arranged two pairs on pump housing intracavity sidewall advances, outlet, on the pump housing inner chamber madial wall between every pair of import and the outlet, an axial cylindrical shape caulking groove is set, respectively embed the cylindrical end of a slide plate in each caulking groove, each fixes an end of a stage clip to pump housing inner chamber madial wall near the slide plate place, the other end of stage clip withstands on the corresponding slide plate, make the thin free end of point of slide plate be pressed in impeller all the time and take turns on all curved surfaces, by slide plate advancing its both sides, outlet separates, and makes the slide plate both sides form two chambers.

2, according to the described wing pump of claim 1, it is characterized in that 120 ° at the protruding all intervals of two adjacent on described impeller wheels, the inner chamber madial wall of pump housing outlet periphery is an inner concave arc surface, slide plate also is a cambered surface, 180 ° at interval of two outlets on the pump housing intracavity sidewall, 180 ° at interval of two imports, 180 ° at interval of two axial cylindrical caulking grooves on the pump housing inner chamber madial wall.

3, according to claim 1 or 2 described wing pumps, it is characterized in that the described pump housing is a cylindrical shape, pump cover comprises upper and lower disc pump cover, pump housing sidewall and pump cover edge all vertically are provided with corresponding up and down bolt hole, with bolt the pump housing and pump cover are connected as a single entity, impeller and slide plate are clipped between the upper and lower disc pump cover.

4,, it is characterized in that two pipeline parallel connections that outlet picks out on the described pump housing sidewall, two pipeline parallel connections that import picks out on the pump housing sidewall according to claim 1 or 2 described wing pumps.

5,, it is characterized in that two pipeline parallel connections that outlet picks out on the described pump housing sidewall, two pipeline parallel connections that import picks out on the pump housing sidewall according to the described wing pump of claim 3.