CN201991769U - Vane pump - Google Patents
Vane pump Download PDFInfo
- Publication number
- CN201991769U CN201991769U CN2011200606282U CN201120060628U CN201991769U CN 201991769 U CN201991769 U CN 201991769U CN 2011200606282 U CN2011200606282 U CN 2011200606282U CN 201120060628 U CN201120060628 U CN 201120060628U CN 201991769 U CN201991769 U CN 201991769U
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- pulsation
- groove
- side plate
- vane pump
- rotor
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a vane pump, which comprises a rotor. A side plate is butted on one end face of the rotor, a hydraulic oil port is arranged on the side plate, and a pulsation groove is arranged on one lateral side of the side plate close to the rotor and communicated with the hydraulic oil port. The vane pump has the advantages that during operation of the vane pump, the pressure pulsation degree of hydraulic oil can be reduced effectively, operating noise of the vane pump can be reduced by over 5.8dB, impact load to parts of the vane pump is reduced, and accordingly the service life of the vane pump can be prolonged by thirty percent.
Description
Technical field
The utility model relates to a kind of oil hydraulic pump, and more particularly, the utility model relates to a kind of plug-in type vane pump.
Background technique
The working principle of vane pump: motor drives the rotor rotation by transmission shaft, epitrochanterian blade outwards slides in blade groove under action of centrifugal force, the outer end of blade is pressed on the inner surface of stator, seal, simultaneously oil sucting cavity and oil-discharging cavity are separated, along with being rotated further of rotor, when blade from the roundlet arc district of stator inner surface when the orthodrome district moves, two volumes that seal between the blade increase, just by the inlet port oil suction on the side plate; When blade from the orthodrome district of stator inner surface when roundlet arc district moves, the volumes between two sealing blades diminish, by the pressure hydraulic fluid port oil extraction on the side plate, when rotor whenever circles, blade is reciprocal twice in groove, finishes twice suction, oil extraction process, so claim double-acting vane pump again.Hydraulic oil is pushed to the oil outlet end of the pump housing, and hydraulic oil is subjected to continue compression and produces high pressure, and high pressure can reach a hundreds of barometric pressure.
In disclosed a CN201621065U patent application on November 3rd, 2010, this patent name is " a kind of high-speed high-performance vane pump " as Patent Office of the People's Republic of China, and this pump mainly is made up of pump case and pump core.The pump core is made up of stator, rotor, side plate and left and right food tray, stator and rotor are contained between two blocks of side plates and by straight pin and connect, female blade and blades are housed in the rotor, be assembled into the pump core assembly by two screws, the installation dimension of pump core assembly is consistent with corresponding each grade pump core assembly of known PVE series, and pump case is identical with known corresponding each grade pump case of PVE series.This vane pump is not owing to establish the pulsation groove on the side plate, cause hydraulic oil in 90 ° of angular variables of rotor of high speed rotating, to rise to a hundreds of barometric pressure from 1 barometric pressure, export with rated pressure at the pressure hydraulic fluid port, in 90 ° of angular variables, reduce to 1 below the barometric pressure again from rated pressure, the so violent pulsation of hydraulic oil pressure masterpiece can be sent bigger noise inevitably in the extremely short time, component to vane pump also can produce bigger injury, shorten the working life of vane pump.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of and can increase the service life, the vane pump of low noise.
The purpose of this utility model is achieved in that a kind of vane pump, comprises rotor, and butt has side plate on the end face of rotor, and side plate is provided with the pressure hydraulic fluid port, and described side plate is provided with the pulsation groove near the side of rotor, and the pulsation groove communicates with pressing hydraulic fluid port.Owing on side plate, be provided with two pulsation grooves that communicate with the pressure hydraulic fluid port of symmetric arrangement, make blade from the orthodrome district of stator inner surface when roundlet arc district moves, the pressure of hydraulic oil rises to be kept pressure stability by the pressure release of pulsation groove after the rated pressure and no longer continues to raise, behind the vanes overvoltage hydraulic fluid port, from the roundlet arc district of stator inner surface when the orthodrome district moves, the pressure of hydraulic oil reduces, press the pulsation groove pressure release of hydraulic fluid port by opposite side, not only can stablize the rated pressure of pressing hydraulic fluid port but also can make the hydraulic oil in oil suction district obtain pre-supercharging, avoid the hypotony of inlet port, like this in the vane pump working procedure, the rapid degree of pulsatility of hydraulic fluid pressure is effectively alleviated, greatly reduce the operating noise of vane pump, alleviate the impulsive load of vane pump component simultaneously, can prolong the working life of vane pump.
Described pulsation groove is the triangular taper, and the big end of pulsation groove is towards pressing hydraulic fluid port.Blade moves to roundlet arc district from the orthodrome district of stator inner surface, and hydraulic fluid pressure is more and more higher, reaches stable after the rated pressure in order to keep hydraulic oil, needs increasing pressure release flow; As a same reason, in order to keep the pressure stability of pressing hydraulic fluid port, the roundlet arc district from stator inner surface moves to the orthodrome district along with blade, presses the pressure difference in hydraulic fluid port and oil suction district increasing, needs to press hydraulic fluid port more and more littler to oil suction district pressure release flow.So be the triangular taper based on this two aspects reason pulsation groove, and the big end of pulsation groove is towards pressing hydraulic fluid port.
Described pulsation groove one sidewall and another sidewall intersect and form first rib, and the two ends of first rib equate to the distance of side plate central shaft.Because the two ends of first rib equate that to the distance of side plate central shaft the flow direction of hydraulic oil in the pulsation groove is consistent with the flow direction in the compression chamber, the resistance loss in the time of can reducing hydraulic oil by the pressure release of pulsation groove.
The big end of described pulsation groove is isosceles right triangle, and the summit, right angle is an end points of first rib, and the summit, right angle is to the distance 0.8～1.2mm of hypotenuse; Described pulsation groove one sidewall and side plate intersect near a side of rotor and form second rib, and described another sidewall of pulsation groove and side plate intersect near a side of rotor and form triangular, and it is 9～12 ° that second rib and triangular intersect the angle that forms; The big end of described pulsation groove is 10～12mm to most advanced and sophisticated distance.Make the pressure release flow of pulsation groove to be consistent like this with the pressure release flow of keeping the stable needs of rated pressure.
The beneficial effects of the utility model are: because the side of the close rotor of side plate is provided with the pulsation groove, the pulsation groove communicates with pressing hydraulic fluid port, make in the vane pump working procedure, the rapid degree of pulsatility of hydraulic fluid pressure is effectively alleviated, the operating noise of vane pump reduces more than the 5.8dB, alleviate the impulsive load of vane pump component simultaneously, can prolong the working life of vane pump 30%.
Description of drawings
Fig. 1 is a kind of structure cross-sectional schematic of the utility model.
Fig. 2 is the side plate schematic representation among Fig. 1.
Fig. 3 is the R portion enlarged diagram among Fig. 2.
Fig. 4 is that A among Fig. 3 is to local enlarged diagram.
Among the figure: 1. the pump housing, 2. first side plate, 3. stator, 4. second side plate, 5. rotor, 6. blade is 7. pressed hydraulic fluid port, 8. pulsation groove, 9. first rib, 10. second rib, 11. triangulars, 12. another sidewalls, 13. 1 sidewalls.
Embodiment
Below by specific embodiment, and the technical solution of the utility model is further described in detail in conjunction with Figure of description:
Embodiment: a kind of vane pump as shown in Figure 1, be tightened to an assembly by stator 3, first side plate 2, second side plate 4, blade 6, rotor 5 usefulness straight pins and screw, this assembly is installed in the cavity in the pump housing 1, its rotor 5 is rotatable with respect to first side plate 2, second side plate 4 that are connected to respectively on the rotor 5 both sides end faces, and the blade 6 that is movably connected on the rotor 5 can be done circumferentially to slide along stator 3 internal surfaces.As shown in Figure 2, first side plate 2, second side plate 4 are near being respectively equipped with pulsation groove 8 on the side of rotor 5, pulsation groove 8 is the triangular taper, the big end of pulsation groove 8 communicates with the pressure hydraulic fluid port 7 on being located at first side plate 2, second side plate 4 respectively, each presses two pulsation of hydraulic fluid port 7 symmetric arrangement groove 8, and the pressure release direction of pulsation groove 8 is consistent with the sense of rotation of rotor 5.As Fig. 3, shown in Figure 4, one sidewall 13 of pulsation groove 8 intersects vertically with another sidewall 12 and forms first rib 9, the outer of pulsation groove 8 one sidewalls 13 is second rib 10, the outer of pulsation groove 8 another sidewalls 12 is a triangular 11, the big end of pulsation groove 8 is isosceles right triangle, the summit, right angle is an end points of first rib 9, the summit, right angle is 0.8～1.2mm to the distance of hypotenuse, the summit, right angle most preferably is 1mm to the distance of hypotenuse, it is 9～12 ° that second rib 10 and triangular 11 intersect the angle that forms, second rib 10 and triangular 11 intersect the angle that forms and most preferably are 10.5 °, it is 10～12mm that pulsation groove 8 is held the distance at tip greatly, the distance that pulsation groove 8 is held the tip greatly most preferably, 11mm.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim puts down in writing.
The content that is not described in detail in this specification belongs to the those skilled in the art known prior art.
Claims (6)
1. a vane pump comprises rotor, and butt has side plate on the end face of rotor, and side plate is provided with the pressure hydraulic fluid port, it is characterized in that: described side plate is provided with the pulsation groove near the side of rotor, and the pulsation groove communicates with pressing hydraulic fluid port.
2. vane pump according to claim 1 is characterized in that: described pulsation groove is the triangular taper, and the big end of pulsation groove is towards pressing hydraulic fluid port.
3. vane pump according to claim 2 is characterized in that: described pulsation groove one sidewall and another sidewall intersect and form first rib, and the two ends of first rib equate to the distance of side plate central shaft.
4. according to claim 2 or 3 described vane pumps, it is characterized in that: the big end of described pulsation groove is isosceles right triangle, and the summit, right angle is an end points of first rib, and the summit, right angle is to the distance 0.8～1.2mm of hypotenuse.
5. vane pump according to claim 4, it is characterized in that: described pulsation groove one sidewall and side plate intersect near a side of rotor and form second rib, described another sidewall of pulsation groove and side plate intersect near a side of rotor and form triangular, and it is 9～12 ° that second rib and triangular intersect the angle that forms.
6. according to claim 2 or 3 described vane pumps, it is characterized in that: the big end of described pulsation groove is 10～12mm to most advanced and sophisticated distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200606282U CN201991769U (en) | 2011-03-09 | 2011-03-09 | Vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200606282U CN201991769U (en) | 2011-03-09 | 2011-03-09 | Vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991769U true CN201991769U (en) | 2011-09-28 |
Family
ID=44668258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200606282U Expired - Fee Related CN201991769U (en) | 2011-03-09 | 2011-03-09 | Vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685349A (en) * | 2021-09-14 | 2021-11-23 | 王洪继 | Energy-saving vane pump |
-
2011
- 2011-03-09 CN CN2011200606282U patent/CN201991769U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685349A (en) * | 2021-09-14 | 2021-11-23 | 王洪继 | Energy-saving vane pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20200309 |