CN103527475A

CN103527475A - Stator magnetic pole type electric roller vane pump

Info

Publication number: CN103527475A
Application number: CN201310424856.7A
Authority: CN
Inventors: 张立强; 苏华山; 杨国来; 张峻峰
Original assignee: WENZHOU PUMP AND VAVLE ENGINEERING RESEARCH INSTITUTE LANZHOU UNIVERSITY OF TECHNOLOGY; Lanzhou University of Technology
Current assignee: WENZHOU PUMP AND VAVLE ENGINEERING RESEARCH INSTITUTE LANZHOU UNIVERSITY OF TECHNOLOGY; Lanzhou University of Technology
Priority date: 2013-09-17
Filing date: 2013-09-17
Publication date: 2014-01-22

Abstract

The invention discloses a stator magnetic pole type electric roller vane pump, which comprises a pump shell, wherein the pump shell is provided with an oil inlet and an oil outlet; a direct current(DC) drive motor is arranged in the pump shell; a relief valve and a roller pump are arranged between the oil inlet and the DC drive motor; an one-way valve is arranged in the oil outlet; the roller pump comprises an oil intake end, a stator, a rotor, a plurality of rollers and a port plate, wherein the stator is arranged between the cap of the oil intake end and the port plate; the rotor is arranged in the stator; an U-shaped groove is formed in the edge of the rotor and the rollers are arranged in the U-shaped groove. The stator magnetic pole type electric roller vane pump, disclosed by the invention, has the beneficial effects that the impact abrasion to the sidewall of the stator caused by the rollers in the roller pump due to the action of start centrifugal force is avoided; the tight contact among the magnetic sidewall of the stator, the rollers and the groove of the rotor can relieve oil fluid leakage, thereby increasing volumetric efficiency and mechanical efficiency of the pump; the ability of resisting external load sudden change is greatly augmented; the reliability is improved, meanwhile, the service time of the pump is prolonged and low costs of good quality products are realized.

Description

The electronic roller vane pump of a kind of magnetic pole of the stator formula

Technical field

The present invention relates to a kind of electronic roller vane pump, particularly the electronic roller vane pump of a kind of magnetic pole of the stator formula.

Background technique

The electronic roller vane pump of magnetic pole of the stator formula is electromechanical integration positive displacement pump, and its upper half part is an armature, and lower half portion is a roller pump, and during work, roller pump is High Rotation Speed under armature drives, and the inner pressure difference that produces extrudes medium, realizes pump oil.

The small volume of this kind of oil pump, can be widely used in automobile, motorcycle fuel supply system.

Between the roller and stator of existing roller type electric fuel punp, in the process starting at High Rotation Speed, the wearing and tearing of roller and stator are very large, not only make reduce the working life of fuel pump, also cause the matching gap of roller and stator excessive, affect the oil pressure performance of oil pump.

Summary of the invention

Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of magnetic pole of the stator formula electronic roller vane pump.

To achieve these goals, the measure that the present invention takes:

The electronic roller vane pump of a kind of magnetic pole of the stator formula, comprise pump case, be provided with filler opening and oil outlet on pump case, described pump case inside is provided with DC drive motor, Decompression valves and roller pump are installed between filler opening and DC drive motor, one-way valve is installed in oil outlet;

Described roller pump comprises oil inlet end, stator, rotor, roller and thrust plate, between oil-feed end cap and thrust plate, stator is installed, and rotor is installed in stator, and the edge of rotor offers U-shaped groove, in U-shaped groove, roller is installed;

The edge of described rotor evenly offers five U-shaped grooves, and a roller is installed in each groove.

Beneficial effect of the present invention: solved the roller in roller pump owing to starting the effect of centrifugal force, the impact wear to stator wall of generation; Close contact between magnetic stator wall and roller, rotor recesses has alleviated oil liquid leakage, has improved pump volumetric efficiency and mechanical efficiency; The ability of anti-outer load changing strengthens greatly, has improved reliability, has increased the pump life-span simultaneously, has realized quality product cost degradation.

Accompanying drawing explanation

Fig. 1, cross-sectional view of the present invention.

Fig. 2, roller pump structural representation of the present invention.

Fig. 3, roller pump decomposition texture schematic diagram of the present invention.

Fig. 4, the stator faces plane structure schematic diagram of roller pump of the present invention.

Embodiment

The electronic roller vane pump of a kind of magnetic pole of the stator formula, comprise pump case 5, be provided with filler opening and oil outlet on pump case 5, described pump case 5 inside are provided with DC drive motor 3, Decompression valves 1 and roller pump 2 are installed between filler opening and DC drive motor 3, one-way valve 4 is installed in oil outlet; Described roller pump 2 comprises oil-feed end cap 201 and thrust plate 203, between oil-feed end cap 201 and thrust plate 203, stator 205 is installed, and rotor 205 is installed in stator 202, and the edge of rotor 205 offers U-shaped groove, and roller 204 is installed in U-shaped groove; The edge of described rotor 205 evenly offers five U-shaped grooves, and a roller 204 is installed in each groove.

Rotor 205 rotates under the driving of DC drive motor 3, and under the effect of centrifugal force, roller 204 is pressed on the internal circular surfaces of the pump housing, forms five relatively independent Seal cages.During rotation, the volume of each Seal cage constantly changes, and when filler opening (A sensing place of filler opening position in Fig. 1), volume increases, and forms certain vacuum, and the medium through filtering is sucked in the present invention.At oil outlet (B sensing place of oil outlet position in Fig. 1), locate, volume diminishes, and pressure raises, and medium, through DC drive motor 3, is pushed one-way valve 4 outputs open.

When obstruction or the obstruction of medium filter cleaner occur pipeline road, pressure medium surpasses specified value, and Decompression valves 1 is opened, and MEDIA FLOW is back into hydraulic fluid port one end.After DC drive motor 3 stops, one-way valve 4 is closed, and avoids the medium in pipeline road to flow backwards, and keeps there is certain residual pressure in oil circuit, so that DC drive motor 3 is restarted.By adopting magnetized stator 202, can produce suction-operated to roller 204, even when rotor 205 is non-rotary, roller 204 is also the internal face of being close to stator 202.Avoided owing to starting or the unreasonable percussion to stator 202 internal faces of stator 202 Profile Designs.Simultaneously under the effect of inertial force, roller 204 always with rotor 205 on a side of U-shaped groove be adjacent to, the internal face of roller 204, stator 202 is, the close contact of the U-shaped groove of rotor 205 forms several airtight active chambers like this.Effectively overcome roller pump 2 due to the undesirable operating mode that the impact wear of stator 202 and instantaneous high low pressure are linked up that starts that the effect of centrifugal force produces; The close contact of the U-shaped groove of the internal face of roller 204, stator 202, rotor 205 has alleviated oil liquid leakage, both having increased the life-span had reduced cost, has improved again volumetric efficiency of the present invention and mechanical efficiency, but also has improved greatly stationarity and reliability.

Rotor 205 rotates under the driving of DC drive motor 3, and in working procedure, rotor 205 circles, and roller 204 makes a round trip in the U-shaped groove of rotor 205, completes once suction, oil extraction process.

Claims

1. the electronic roller vane pump of magnetic pole of the stator formula, comprise pump case (5), pump case is provided with filler opening and oil outlet on (5), it is characterized in that: described pump case (5) inside is provided with DC drive motor (3), Decompression valves (1) and roller pump (2) are installed between filler opening and DC drive motor (3), one-way valve (4) is installed in oil outlet.

2. the electronic roller vane pump of a kind of magnetic pole of the stator formula according to claim 1, it is characterized in that: described roller pump (2) comprises oil-feed end cap (201) and thrust plate (203), between oil-feed end cap (201) and thrust plate (203), stator (205) is installed, rotor (205) is installed in stator (202), the edge of rotor (205) offers U-shaped groove, and roller (204) is installed in U-shaped groove.

3. the electronic roller vane pump of a kind of magnetic pole of the stator formula according to claim 2, is characterized in that: the edge of described rotor (205) evenly offers five U-shaped grooves, and a roller (204) is installed in each groove.