CN2168098Y - Cam-rotor vane pump using hydraulic floating sideboard - Google Patents
Cam-rotor vane pump using hydraulic floating sideboard Download PDFInfo
- Publication number
- CN2168098Y CN2168098Y CN 92207986 CN92207986U CN2168098Y CN 2168098 Y CN2168098 Y CN 2168098Y CN 92207986 CN92207986 CN 92207986 CN 92207986 U CN92207986 U CN 92207986U CN 2168098 Y CN2168098 Y CN 2168098Y
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- CN
- China
- Prior art keywords
- oil
- pump
- side plate
- pressure side
- rotor vane
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a cam rotor vane pump with hydraulic floating side plates, belonging to a mechanical device of fixed quantity of liquid. The hydraulic floating side plates are adopted in the pumps. Compared with the structure of fixed gap, the utility model can lower down the manufacturing accuracy of primary spare parts properly and cut down cost with convenient assembly and maintenance. With the action of high pressure oil, the axial clearance among a rotor, pressure side plates and oil allocating disk caused by the abrasion can be compensated by the utility model. The utility model has the advantages that higher volume efficiency is kept, a flow passage in a pump body can be seen, and sands are easy to clean with thoroughly clean washing.
Description
The utility model belongs to liquid quantitative formula mechanical device.
Along with the development of hydraulic pressure to high-pressure trend, low noise direction, the low noise of cam rotor vane pump, long-life advantage just more and more are subject to people's attention.The cam rotor vane pump of producer mostly is the double-cam rotator type greatly both at home and abroad now, when this structure is formed duplex pump, exists the long defective of axial dimension; No matter be the double-cam rotating vane pump, still single cam rotor vane pump all adopts fixed interval (FI) formula structure at present both at home and abroad, requires the machining accuracy of part very high; Assembling, inconvenient maintenance; In addition, because the special construction of this pump, the runner in the pump housing is secret tunnel at present, and difficulty is cleaned in sand removal.
In order to overcome the problems and shortcomings part of above existence: the purpose of this utility model provides and a kind ofly can overcome present single, double cam rotor vane pump part processing precision requirement height, is difficult for assembling, and pump housing inner flow passage is that secret tunnel, sand removal are difficult for; Defectives such as axial dimension was long when the wheeled rotor sheet pump of biconvex was formed duplex pump, to adopt the pump housing inner flow passage of hydraulic floating side plate be the cam rotor vane pump of bright road.
In order to solve above-mentioned task, the technical solution adopted in the utility model is a kind of cam rotor vane pump with the hydraulic floating side plate, and it is made up of pump cover ［ 1 ］, oil distribution casing ［ 2 ］, cam follower ［ 3 ］, small plunger ［ 4 ］, spring ［ 5 ］, stator ［ 6 ］, blade ［ 7 ］, pressure side plate ［ 8 ］, the pump housing ［ 9 ］, flange ［ 10 ］, transmission shaft ［ 11 ］ and some Sealings, bearing.An appropriate gap ［ h ］ is left in the right-hand member step surface and the bottom surface, pump housing hole that are with seal ring ［ 12 ］, bearing ［ 13 ］, pressure side plate ［ 8 ］, cam follower ［ 3 ］, oil distribution casing ［ 2 ］, bearing ［ 14 ］, pressure side plate ［ 8 ］ on transmission shaft ［ 11 ］ successively; Blade is contained in the stator vane groove, and ear end face has small plunger and spring to head on; Oil enters the oil sucting cavity of stator ［ 6 ］ from the inlet port of pump cover through the through hole of annular groove ［ d ］, oil distribution casing ［ 2 ］; Under the effect of rotor, blade, through the through hole of stator pumping cavity, pressure side plate, communicate with the outlet of the pump housing to the annular groove ［ g ］ at the back side and the annular groove ［ i ］ of the pump housing, the sulculus ［ e ］ of oil distribution casing ［ 2 ］ left side leads to oil sucting cavity, reclaims the leakage oil in the pump housing.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1: the structural drawing of cam rotor vane pump;
Fig. 2: oil distribution casing view;
Fig. 3: pressure side plate view;
Fig. 4: another kind of oil distribution casing structure;
Fig. 5: the structure of another kind of stator;
Fig. 6: can the remove heat by catharsis structure 1 of leakage of oil of transmission shaft;
Fig. 7: transmission shaft can leak the structure 2 of oil;
Be embodiment of the present utility model below: four through holes are arranged on oil distribution casing ［ 2 ］, corresponding with 4 oil sucting cavities of stator ［ 6 ］, Xiao hole, 2 location, left end has sulculus ［ e ］, makes the passage that pump internal leakage oil is back to oil sucting cavity; Have four oil sucting cavities on the stator ［ 6 ］, 4 oil pockets, 4 blade groove bottoms are provided with the hole of aperture ［ b ］, mounting spring ［ 5 ］, small plunger ［ 4 ］, Xiao hole, 2 location, inhaling pumping cavity for 4 has skewed slot to communicate with the big endoporus of stator respectively; The little axle head of pressure side plate is provided with annular groove ［ g ］, and 4 through holes communicate with 4 pumping cavities on the stator ［ 6 ］, the hole ［ b ］ of 4 the logical blade groove of apertures bottoms in addition, and other has 2 positioning screw holes; The relative position in oil distribution casing ［ 2 ］, stator ［ 6 ］, the relevant hole of pressure side plate guarantees by location Xiao Ding ［ 15 ］, and carries out pre-sealedly, and the three is a builtup member.
During the oil pump starting, the cam follower ［ 3 ］ that is enclosed within on the transmission shaft ［ 11 ］ rotates under the drive of motor, and blade ［ 7 ］ is pressed to cam follower by spring ［ 5 ］, small plunger ［ 4 ］; Because cam follower and blade, pressure side plate, volume between oil distribution casing and stator inner hole constantly from small to large, variation from big to small, oil is from the annular groove ［ d ］ of inlet port through pump cover ［ 1 ］, and 4 through holes of oil distribution casing ［ 2 ］ enter into 4 oil sucting cavities of stator, then through the pumping cavity of stator, the through hole of pressure side plate is to annular groove ［ g ］, and the annular groove of the pump housing ［ i ］ flows to the oil outlet of the pump housing, finishes suction oil; Suitably the annular groove size and the relevant size of design pressure side plate can make the pressure side plate end face that contacts with cam follower, behind the oil distribution casing end wear, under action of hydraulic force, pressure side plate is compensating axial clearance automatically, makes pump can keep higher volumetric efficiency, is in optimum Working.
The pretightening force of Regulation spring ［ 5 ］ can be adjusted the pressure of blade to cam follower by small plunger; Suitably design the size of spring force and small plunger, in the time of can making pump to certain pressure, plunger breaks away from blade, makes blade depend merely on hydraulic coupling and presses to cam follower, reduce spring and be subjected to the fatigue damage that frequent alternation compression causes in the course of the work, thereby prolonged the life-span of pump; Can by the sulculus of oil distribution casing ［ 2 ］ end face flow back to oil sucting cavity from the oil that leaks everywhere; The leakage oil of small plunger ［ 4 ］ back can be opened aperture and flow back to oil sucting cavity.
The oil distribution casing in the present embodiment and the mounting point of pressure side plate after doing the processing of corresponding hole, can be exchanged; This moment, the hydraulic fluid port intermodulation was pressed in the suction of the pump cover and the pump housing.
The sulculus ［ e ］ of oil distribution casing ［ 2 ］ left side also can change the logical oil sucting cavity of inclined hole, as Fig. 4.
Draw the leakage oil of resorption oil pocket also can open aperture or groove milling and directly flow back to fuel tank by pump cover ［ 1 ］ brill aperture by oil distribution casing ［ 2 ］ left side sulculus or inclined hole on transmission shaft.As Fig. 6, Fig. 7.
Flange ［ 10 ］ also can merge into a single whole with the pump housing ［ 9 ］.
Bearing ［ 14 ］ also can be installed in the endoporus place of pressure side plate ［ 8 ］.
The pressure oil that leads to blade groove bottom aperture by pressure side plate 4 apertures also can change by 4 pressure oil cavity end faces on the stator directly fluting draw oil.As Fig. 5.
Effect of the present utility model is: compare with the cam rotor vane pump of fixed interval (FI) formula structure, adopt the cam rotor vane pump of hydraulic floating side plate, can suitably reduce the accuracy of manufacture of major part, make cost; Assembling, easy to maintenance; Increase the defective that volumetric efficiency descends, longer service life by hydraulic oil interaction energy auto-compensation because of the end play that wearing and tearing cause; After runner in the pump housing adopts the bright road structure, can avoid present this pump to adopt secret tunnel to be difficult for the defective of sand removal, make sand removal easy, clean thoroughly clean.
Claims (7)
1, a kind of cam rotor vane pump with the hydraulic floating side plate, it is characterized in that: by pump cover [1], oil distribution casing [2], cam follower [3], small plunger [4], spring [5], stator [6], blade [7], pressure side plate [8], the pump housing [9], flange [10], transmission shaft [11] and some Sealings, bearing are formed; An appropriate gap [h] is left in the step surface and the bottom surface, pump housing hole that are with seal ring [12], bearing [13] pressure side plate [8], wheel rotor [3], oil distribution casing [2], bearing [14], pressure side plate [8] on transmission shaft [11] successively; Blade is contained in the blade groove of stator [6], can radially slide, and ear end face has small plunger [4] and spring [5] to head on; Pressure side plate [8] is gone up through hole one end and is communicated with annular groove [g], and the other end communicates with pumping cavity on the stator [6], and 4 apertures are guided to root of blade aperture [b] to the pressure oil of annular groove; The oil sucting cavity of the logical stator [6] of through hole one end of oil distribution casing [2], the other end leads to the oil suction annular groove [d] of pump cover [1], and the sulculus on the end face [e] draws the leakage oil in the pump gets back to oil sucting cavity.
2, cam rotor vane pump according to claim 1 is characterized in that: after doing the processing of corresponding hole, oil distribution casing ［ 2 ］ can be exchanged with the mounting point of pressure side plate; At this moment, the annular groove of pump cover ［ 1 ］ is a pumping cavity, and the annular groove of the pump housing ［ 9 ］ is an oil sucting cavity.
3, cam rotor vane pump according to claim 1 is characterized in that: pump internal leakage oil is drawn the sulculus ［ e ］ of getting back to oil sucting cavity, also can change by the logical oil sucting cavity of inclined hole.
4, cam rotor vane pump according to claim 1 is characterized in that: the suction leakage of oil in the pump housing also can be changed into and be opened aperture or groove on the transmission shaft, and directly flows back to fuel tank by pump cover ［ 1 ］ brill aperture.
5, require 1 described cam rotor vane pump according to power, it is characterized in that: the pressure oil that leads to root of blade aperture ［ b ］ by pressure side plate 4 apertures also can change on the stator 4 pumping cavity ports directly fluting draw oil.
6, cam follower leaf pump according to claim 1 is characterized in that: flange ［ 10 ］ also can merge into a single whole with the pump housing ［ 9 ］.
7, cam rotor vane pump according to claim 1 is characterized in that: bearing ［ 14 ］ also can be installed in the endoporus place of pressure side plate ［ 8 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92207986 CN2168098Y (en) | 1992-04-21 | 1992-04-21 | Cam-rotor vane pump using hydraulic floating sideboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92207986 CN2168098Y (en) | 1992-04-21 | 1992-04-21 | Cam-rotor vane pump using hydraulic floating sideboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168098Y true CN2168098Y (en) | 1994-06-08 |
Family
ID=33762319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92207986 Expired - Fee Related CN2168098Y (en) | 1992-04-21 | 1992-04-21 | Cam-rotor vane pump using hydraulic floating sideboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168098Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182677A (en) * | 2011-06-01 | 2011-09-14 | 张意立 | Novel four-line meshed internal-pressure sealed pump |
-
1992
- 1992-04-21 CN CN 92207986 patent/CN2168098Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182677A (en) * | 2011-06-01 | 2011-09-14 | 张意立 | Novel four-line meshed internal-pressure sealed pump |
| CN102182677B (en) * | 2011-06-01 | 2016-04-27 | 张意立 | A kind of four line engagement inner pressuring sealing new 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 |