CN2436689Y - High-performance double-action hydraulic vane pump - Google Patents
High-performance double-action hydraulic vane pump Download PDFInfo
- Publication number
- CN2436689Y CN2436689Y CN 00220573 CN00220573U CN2436689Y CN 2436689 Y CN2436689 Y CN 2436689Y CN 00220573 CN00220573 CN 00220573 CN 00220573 U CN00220573 U CN 00220573U CN 2436689 Y CN2436689 Y CN 2436689Y
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- Prior art keywords
- oil
- blade
- groove
- vane pump
- stator
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- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model relates to a high-performance double-function hydraulic vane pump which belongs to the field of a mechanical device of a liquid volume fixing type. The utility model is characterized in that four sections of circular arc-shaped oil-through grooves are arranged on a port plate which is contacted with the root of a rotor vane groove, and the top of a vane adopts a double chamfering shape. When the pump works, the contact stress of the vane for the stator in an oil sucking zone is obviously reduced. The utility model has the advantages of high pressure, small pressure pulsation, low noise, high efficiency and long service life, and is widely used for the fields of machine tools, engineering machines, die casting machines, plastic machines, etc.
Description
The utility model is a kind of high-performance double-action hydraulic vane pump of design.Belong to liquid constant volume mechanical device.
At present, in the mesohigh that has various structures, high-pressure and hydraulic vane pump, relatively the traditional product that U.S. Vickers company is arranged of success is that mother and sons' blade structure and the Japanese oil company of grinding produces the PV2R vane pump in the world.But they are existing deficiency in varying degrees.As: the primary-auxiliary type vane pump, between female, sub two blades loculus is arranged, pump is under load behavior, and loculus communicates with high pressure oil all the time.Narrower because of seal area between mother, sub two blades, when blade was in the oil suction district, the high pressure oil in the loculus passed through interfoliaceous gap easily, and produced internal leakage with the rotor gap, thereby influenced the raising of the volumetric efficiency of pump.Its shortcoming part is: comparatively complicated on the structure, processability of product structure is relatively poor, and cost of production is higher.And Japanese oil grinds the PV2R vane pump that company produces, this pump noise is lower, but because the blade bottom is to link up with a circular groove that communicates with pressure oil cavity, blade is when the oil suction district, blade obviously increases the pressure of stator, directly influenced the working life of stator, and the volumetric efficiency of this pump and total efficiency are also lower.
The purpose of this utility model designs a kind of simple and reasonable, pressure is high, noise is low, efficient is high, volume is little high-performance hydraulic vane pump exactly.
Technical characterstic of the present utility model is to utilize centrifugal action, makes blade contact with stator inner surface.To be divided into four sections with the logical oil groove of the contacted circular arc of rotor vane groove root on the thrust plate, two sections logical high pressure oils wherein, two sections logical low pressure oil in addition, and be symmetrically distributed respectively, the hydraulic coupling that makes vane tip and bottom inhale, laminated oil zone is all in a basic balance, can not produce that institute causes blade and the excessive contact stress of stator generation because pressure raises; Adopt the blade of two chamfer shapes, blade has two seamed edges contact with stator inner surface simultaneously in stator circular arc district all the time, and blade inhale, during laminated oil zone (being on the stator transition curve) slip, two seamed edges of blade contact with stator inner surface in turn; Be provided with the triangle compensating groove in oil distribution casing oil sucting cavity two edges, and the vibration isolation circle be set at stator cylindrical place.
The utility model has compared with prior art been adopted two chamfer shapes owing to be provided with logical oil groove of four arcs shape and vane tip on thrust plate, make pump when work, blade is in suction, laminated oil zone and circular arc district, and the contact stress of stator is obviously reduced, and improved the life-span of mechanical efficiency and stator; The influence that give birth to because of radial motion convection current volume production vane tip and bottom is cancelled each other, thereby reduces the pressure pulsation that causes because of flow pulsation; Vane tip adopts two chamfer shapes also to make blade in the circular arc district, and sealing is strengthened, and the internal leakage of pump is reduced, and has improved volumetric efficiency.Blade is in suction, laminated oil zone simultaneously, and two seamed edges on each blade contact with the transition curve of stator inner surface in turn, have improved the life-span of blade; Be provided with the triangle compensating groove in thrust plate oil sucting cavity two edges, reduce the noise of pump.
Fig. 1 of Figure of description is the axial sectional view of high-performance hydraulic vane pump; Fig. 2 is a high-performance hydraulic vane pump longitudinal section view.
Further narrate below in conjunction with Figure of description of the present utility model:
The utility model high-performance hydraulic vane pump is by rotor 3, blade 5, and thrust plate 2,6 is tightened to an assembly with screw earlier, in the pump housing 1,7 of packing into then.Four arcs on rotor 3 and stator 4 internal surfaces is concentric.Inner surface configuration is like oval.
Be provided with the logical oil groove of four arcs shape on thrust plate described in the utility model, wherein two sections is the oil grooves 10 of logical high pressure oil, in addition two sections oil groove 11 and symmetrical distributions for logical low pressure oil.When rotor 3 rotation, because action of centrifugal force, make the top of blade 5 be close to the internal surface of stator 4.When blade entered the oil suction district, blade was protruding, and the volume between adjacent blades increases gradually, and the blade bottom leads to oil groove 11 fuel feeding of low pressure oil from the circular arc on the thrust plate 2,6.When blade enters laminated oil zone, blade 5 moves to the center by the restriction of stator 4, and the volume between the adjacent blades reduces gradually, and fluid is extruded through the pressure oil window of thrust plate 6.The bottom of blade 5 also communicates with the oil groove 10 of the circular arc high pressure oil of thrust plate 2,6.Thereby guarantee that vane tip and bottom active force are in a basic balance.When blade 5 from the oil suction district firm entering when adding the circular arc district, or when entering the circular arc district from laminated oil zone is firm, in order to prevent that blade 5 from coming to nothing or clash into, the two ends that lead to the oil groove 10 of high pressure oil two sections circular arcs are respectively equipped with leg-of-mutton vibration damping groove 9, and are provided with triangle compensating groove 12 in oil distribution casing oil sucting cavity two edges.Blade 5 described in the utility model, adopt two chamfer shapes at its top, make blade 5 enter the circular arc district by the oil suction district, or enter the circular arc district by laminated oil zone, all there is 1/3rd masterpiece of the bottom liquid pressure that is equivalent to act on blade 5 to be used for the top of blade 5, two seamed edges are arranged at the top because of blade 5 again, blade 5 contact stress to stator in the circular arc district is obviously reduced, and strengthened the sealing of blade 5 in the circular arc district.Cylindrical place at stator 4 is provided with vibration isolation circle 8, to reduce the noise of pump when working.
The utility model is when work, and rotor 3 is whenever goed around, and each sealed volume is finished twice oil suction and pressed oil.
Claims (4)
1. a high-performance hydraulic vane pump is made up of rotor, blade, stator, thrust plate, the pump housing, it is characterized in that being provided with on the contacted thrust plate of rotor vane groove root the logical oil groove of four arcs shape; Two chamfer shapes are adopted at the top of blade (5); Be provided with the triangle compensating groove in oil distribution casing oil sucting cavity two edges.
2. high-performance hydraulic vane pump according to claim 1 is characterized in that being provided with vibration isolation circle (8) at the cylindrical place of described stator (4).
3. high-performance hydraulic vane pump according to claim 1 is characterized in that described four arcs shape is led to oil groove, is respectively that two sections circular arcs that are symmetrically distributed are led to the oil groove (10) of high pressure oil and the oil groove (11) of two sections logical low pressure oil.
4. according to claim 1 or 3 described high-performance hydraulic vane pump, it is characterized in that the two ends of the oil groove (10) of the logical high pressure oil of described two sections circular arcs are respectively equipped with triangle vibration damping groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220573 CN2436689Y (en) | 2000-06-08 | 2000-06-08 | High-performance double-action hydraulic vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220573 CN2436689Y (en) | 2000-06-08 | 2000-06-08 | High-performance double-action hydraulic vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436689Y true CN2436689Y (en) | 2001-06-27 |
Family
ID=33585596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220573 Expired - Fee Related CN2436689Y (en) | 2000-06-08 | 2000-06-08 | High-performance double-action hydraulic vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436689Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293305C (en) * | 2003-11-12 | 2007-01-03 | 浙江大学 | Bubble evolution proof plunger pump port plate |
| DE102009048320A1 (en) * | 2009-10-05 | 2011-04-07 | Mahle International Gmbh | lubricant pump |
| US8992184B2 (en) | 2009-06-12 | 2015-03-31 | Mahle International Gmbh | Lubricant pump system |
-
2000
- 2000-06-08 CN CN 00220573 patent/CN2436689Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293305C (en) * | 2003-11-12 | 2007-01-03 | 浙江大学 | Bubble evolution proof plunger pump port plate |
| US8992184B2 (en) | 2009-06-12 | 2015-03-31 | Mahle International Gmbh | Lubricant pump system |
| DE102009048320A1 (en) * | 2009-10-05 | 2011-04-07 | Mahle International Gmbh | lubricant pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |