CN201953652U - High pressure hydraulic vane pump - Google Patents
High pressure hydraulic vane pump Download PDFInfo
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- CN201953652U CN201953652U CN2011200641943U CN201120064194U CN201953652U CN 201953652 U CN201953652 U CN 201953652U CN 2011200641943 U CN2011200641943 U CN 2011200641943U CN 201120064194 U CN201120064194 U CN 201120064194U CN 201953652 U CN201953652 U CN 201953652U
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Abstract
The utility model relates to a high pressure hydraulic vane pump of liquid constant volume machinery, which aims at solving the technical problem in the existing VQ vane pump that the noise is larger as pressure in a transition area changes suddenly so as to cause the impact between a female vane and the inner surface of a stator. The vane pump comprises a rear cover, a rear support plate, a double metal side plate, a secondary vane, a primary vane, a stator, a rotor, a front support plate, a front cover and a transmission shaft, wherein the rotor is provided with a vane groove and an oblique hole communicated with the vane groove, the double metal side plate is provided with an arc-shaped long slot and round oil slots, and two adjacent round oil slots are connected with arc-shaped lubrication slots; and the key point of the design lies in that two ends of the arc-shaped long slot are respectively provided with a gradually reducing transition slot, the two adjacent round oil slots are respectively connected with the arc-shaped lubrication slot, and the two arc-shaped lubrication slots are mutually separated. The high pressure hydraulic vane pump has reasonable structure design and stable pressure when working, pressure pulsation is reduced, the noise of the pump is obviously lowered, and the work pressure and service life of the pump are improved.
Description
Technical field
The utility model relates to liquid constant volume machinery, is a kind of high-pressure and hydraulic vane pump.
Background technique
At present, in existing mesohigh hydraulic vane pump, the PV2R2 Series Blade pump that the composite-type VQ Series Blade pump that has U.S. Vickers company to produce, the Japanese oil company of grinding produces etc.The composite-type VQ vane pump that U.S. Vickers company produces owing to adopted the composite-type blade structure, makes female blade when the oil suction district, has reduced the contact stress of female vane tip to stator inner surface, the working life of having improved pump.Also owing to adopted the flexible side plate of bimetal,, improved the volumetric efficiency of pump simultaneously to realize the best clearance between flexible side plate and rotor.The PV2R2 Series Blade pump that Japan's oil company of grinding produces is because structure is comparatively simple, and the noise of pump is lower during work.
But above two kinds of pumps, they are existing deficiency in varying degrees.Composite-type VQ Series Blade pump as the production of U.S. Vickers company, because the design deficiency that on the part-structure of the flexible side plate of bimetal, exists, make pump produce the phenomenon that female blade impacts stator in the course of the work, thereby cause very big noise, influence the working life of pump, limited the using effect of this pump under the high pressure operating mode.Japan's oil grinds the PV2R2 Series Blade pump that company produces, adopt the structure of single blade, because the logical all the time pressure oil in blade bottom, when blade during in the oil suction district, vane tip is bigger to the contact stress of stator inner surface, the working life that influences pump, therefore this kind pump also failed to adapt to preferably the requirement of high pressure operating mode.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this utility model is to provide a kind of low noise high pressure hydraulic vane pump that can better adapt under the high pressure operating mode to related domain, it is solved in the existing VQ vane pump produce impact and the bigger technical problem of noise owing to the sudden changes in pressure in transition zone causes female blade and stator inner surface.Its objective is and be achieved through the following technical solutions.
This high-pressure and hydraulic vane pump comprises bonnet, rear bearing sheet, bimetal side plate, blades, female blade, stator, rotor, front end panel, protecgulum, transmission shaft, its rotor is provided with blade groove, and the inclined hole that communicates with this blade groove bottom, the bimetal side plate is provided with circular arc elongated slot, circular oil groove, and two wherein adjacent circular oil groove connect the arc lubrication groove.The main points of its structure are that described circular arc elongated slot two ends are provided with the transition slot that diminishes gradually, it is the variation in pressure that helps steady son, female interlobate loculus, impact because the unexpected variation of little cavity pressure easily causes producing between female blade and the stator inner surface, cause noise.Described two adjacent circular oil groove connect the arc lubrication groove separately, and these two arc lubrication grooves are separated mutually.The purpose of this structure is to prevent the sudden changes in pressure of female blade when transition zone, bigger pressure pulsation occurs, and the hydraulic coupling that makes female vane tip and stator inner surface can not cause is impacted, and reduces noise.
Described transition slot is a V-arrangement point groove.
Described two adjacent circular oil groove and the arc lubrication groove that connects separately are symplex structure.
The utility model compared with prior art, the design proposal that the arc lubrication groove of lubricate disconnects will be used for owing to adopt on the bimetal side plate, and the V-arrangement point groove that is designed to gradual change at circular arc elongated slot two ends, the female vane tip that efficiently solves vane pump is easy to stator inner surface at transition zone and produces hydraulic shock, the problem that noise is bigger, improve the working pressure and the working life of pump, be suitable as the architecture advances of existing VQ vane pump.
Description of drawings
Fig. 1 is an internal structure schematic representation of the present utility model.
Fig. 2 is the structural representation of the utility model stator, rotor, the combination of bimetal side plate.
Fig. 3 is the structural representation of the utility model bimetal side plate.
Fig. 4 is the structural representation of bimetal side plate in the prior art.
Embodiment
Now in conjunction with the accompanying drawings, the utility model is described in further detail.The name of sequence number is called among the figure: bonnet 1, rear bearing sheet 2, bimetal side plate 3, oil suction groove 301, circular arc elongated slot 302, V-arrangement point groove 30201, pumping cavity 303, circular oil groove 304, arc lubrication groove 305, blades 4, female blade 5, father's former wife's blade 501, stepmother's blade 502, stator 6, oil sucting cavity 601, rotor 7, blade groove 701, inclined hole 702, semicircle orifice 70101, front end panel 8, protecgulum 9, transmission shaft 10.
As shown in Figure 1, this high-pressure and hydraulic vane pump is tightened to assembly by rotor 7, female blade 5, blades 4, stator 6, bimetal side plate 3, front end panel 8, rear bearing sheet 2 by straight pin and screw, this assembly is packed into behind bonnet 1 and protecgulum 9 inside, connect transmission shaft 10.Four arcs on rotor and the stator inner surface is concentric, and the stator inner surface shape is like oval.The utility model and other main structure of prior art phase region are the structure of bimetal side plate, as shown in Figure 3, Figure 4, bimetal side plate of the present utility model is carried out the transition to by low pressure at female blade that circular arc elongated slot 302 two ends that are provided with are provided with V-arrangement point groove 30201 in the section of high pressure, arc lubrication groove 305 of the independent separately connection of two adjacent circular oil groove 304 that the bimetal side plate is provided with, adjacent circular oil groove and arc lubrication groove are for being symmetrical arranged.And in the prior art shown in Fig. 4, the bimetal side plate is the circular arc elongated slot that adopts no V-arrangement point groove, and directly communicates by the arc lubrication groove between two adjacent circular oil groove.
In conjunction with Fig. 2, working principle of the present utility model is described as follows:
In the prior art, adopt bimetal side plate as shown in Figure 4, it adopts identical mounting type with bimetal side plate of the present utility model.When female blade has just entered the V-arrangement point groove of pumping cavity one side, the pressure oil of cavity volume enters father's former wife's blade 501 place blade groove bottom outlet and circular oil groove by the inclined hole in this cavity volume 702 between this mother's blade 5 and the father's former wife's blade 501, enter another adjacent circular oil groove by the arc lubrication groove again, then enter female blade 5 place blade groove bottom outlets by this circular oil groove, enter cavity volume between female blade 5 and the stepmother's blade 502 by inclined hole at last, because of female blade 5 in this process, the high pressure oil of cavity volume between father's former wife's blade 501, with female blade 5, the low pressure oil of cavity volume is linked up suddenly between stepmother's blade 502, produce big pressure pulsation, cause the impact of female blade and stator inner surface, produce very big noise.And the utility model adopts bimetal side plate shown in Figure 3, by the arc lubrication groove middle part of bimetal side plate among Fig. 4 is separated, make the high and low pressure zone between above-mentioned two cavity volumes can not link up suddenly, thereby avoided the impact of female vane tip and stator inner surface, eliminated noise.
When female blade 5 has just entered the V-arrangement point groove of pumping cavity one side with rotor rotation, the V-arrangement point groove of circular arc elongated slot communicates on the semicircle orifice of loculus between this mother's blade and blades by blade groove one side and the bimetal side plate, rotation along with rotor, semicircle orifice increases gradually with the area that this V-arrangement point groove communicates, make the pressure in the loculus also increase gradually, the variation in pressure of loculus is comparatively steady, the pressure that causes when being unlikely to because of the pressure of the pressure oil of loculus through one section sealing section (section between the circular arc elongated slot that the sealing section is meant the oil sucting cavity zone and the circular arc elongated slot in pumping cavity zone) is decayed, after communicate suddenly again and cause the pressure increase with the circular arc elongated slot, form hydraulic shock, and produce noise.
In order to get more information about effect of the present utility model, now provide former technology and pump test comparison table of the present utility model:
When rotor rotates, under action of centrifugal force, make the top of female blade be attached to stator inner surface.When female blade entered oil sucting cavity 601, female blade was protruding, and the interlobate volume of adjacent mother increases gradually.The bottom of female blade, promptly low pressure oil is supplied with by oil suction groove 301 on the bimetal side plate and epitrochanterian inclined hole in the blade groove bottom.Loculus pressure oil between blades and the female blade, be to introduce by the hole, garden at the circular arc elongated slot two ends that are in the low pressure section on the bimetal side plate, semicircle orifice 70101 by blade groove 701 1 sides enters loculus, makes female vane tip can keep reliably contacting with stator inner surface at low pressure area.When two adjacent female blades entered transition zone (section of oil sucting cavity between pumping cavity), female blade 5 entered the V-arrangement point groove of pumping cavity 303 1 sides, progressively increased along with V-arrangement point slot cross-section is long-pending, and pressure raises gradually.Simultaneously, pressure oil also communicates with the blade groove bottom by the interlobate inclined hole of two adjacent mothers, and the pressure of volume oil is basic identical between the pressure of blade groove bottom oil and two adjacent female blades.The pressure oil of the interlobate loculus of primary and secondary is to supply with by the aperture in the circular arc elongated slot that is arranged on bimetal side plate laminated oil zone, because the damping function of aperture, make the pressure of the pressure oil in this circular arc elongated slot be higher than the pressure of the pressure oil of the circular arc elongated slot that is in low pressure area.Therefore, female blade is stressed in a basic balance.When female blade leaves laminated oil zone and enters another transition zone (section of pumping cavity between oil sucting cavity), the pressure of the interlobate loculus of primary and secondary, pressure oil by laminated oil zone circular arc elongated slot is supplied with, and the V-arrangement point groove by being provided with, carry out the transition to gradually by pressure oil and supply with at the circular arc elongated slot of low pressure area; Simultaneously, be about to enter the pressure oil of volume between two female blades of low pressure area,, gradually the pressure of the pressure oil of volume between two female blades reduced and steadily enter low pressure area by the V-arrangement point groove of oil suction groove 301, the bottom outlet and the inclined hole of blade groove.Vane pump whenever rotates a circle, and realizes the process of twice oil suction and twice pressure oil.
Claims (3)
1. high-pressure and hydraulic vane pump, this vane pump comprises bonnet (1), rear bearing sheet (2), bimetal side plate (3), blades (4), female blade (5), stator (6), rotor (7), front end panel (8), protecgulum (9), transmission shaft (10), its rotor is provided with blade groove (701), and the inclined hole (702) that communicates with this blade groove, the bimetal side plate is provided with circular arc elongated slot (302), circular oil groove (304), and two wherein adjacent circular oil groove connect arc lubrication groove (305); It is characterized in that: described circular arc elongated slot (302) two ends are provided with the transition slot that diminishes gradually, and described adjacent two circular oil groove (304) connect arc lubrication groove (305) separately, and these two arc lubrication grooves are separated mutually.
2. according to the described high-pressure and hydraulic vane pump of claim 1, it is characterized in that described transition slot is a V-arrangement point groove (30201).
3. according to the described high-pressure and hydraulic vane pump of claim 1, it is characterized in that described adjacent two circular oil groove (304) and the arc lubrication groove (305) that connects separately are symplex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200641943U CN201953652U (en) | 2011-03-08 | 2011-03-08 | High pressure hydraulic vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200641943U CN201953652U (en) | 2011-03-08 | 2011-03-08 | High pressure hydraulic vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953652U true CN201953652U (en) | 2011-08-31 |
Family
ID=44497764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200641943U Expired - Fee Related CN201953652U (en) | 2011-03-08 | 2011-03-08 | High pressure hydraulic vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141037A (en) * | 2011-03-08 | 2011-08-03 | 孙国校 | High-pressure hydraulic pressure vane pump |
| CN102678545A (en) * | 2012-05-28 | 2012-09-19 | 山西斯普瑞机械制造有限公司 | Anti-friction vane and high-pressure anti-friction column pin type vane pump |
-
2011
- 2011-03-08 CN CN2011200641943U patent/CN201953652U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141037A (en) * | 2011-03-08 | 2011-08-03 | 孙国校 | High-pressure hydraulic pressure vane pump |
| CN102678545A (en) * | 2012-05-28 | 2012-09-19 | 山西斯普瑞机械制造有限公司 | Anti-friction vane and high-pressure anti-friction column pin type vane pump |
| CN102678545B (en) * | 2012-05-28 | 2015-04-22 | 山西斯普瑞机械制造股份有限公司 | High-pressure anti-friction column pin type 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 |
Granted publication date: 20110831 Termination date: 20190308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |