CN86107444A - Vane unloading type safety vane oil pump - Google Patents
Vane unloading type safety vane oil pump Download PDFInfo
- Publication number
- CN86107444A CN86107444A CN 86107444 CN86107444A CN86107444A CN 86107444 A CN86107444 A CN 86107444A CN 86107444 CN86107444 CN 86107444 CN 86107444 A CN86107444 A CN 86107444A CN 86107444 A CN86107444 A CN 86107444A
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- CN
- China
- Prior art keywords
- blade
- oil pump
- vane
- oil
- annular groove
- Prior art date
- 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.)
- Pending
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Abstract
The invention relates to the invention of double-action vane oil pump.The double-action vane oil pump blade liquid thrust imbalance suffered in the oil suction district commonly used, therefore friction is serious between blade and stator, has influenced the efficient and the life-span of oil pump.The present invention not only can make blade in the off-load of oil suction district, has also taked safety measure simultaneously, can improve the working pressure of oil pump, and working life and efficient can reduce its noise, and make it safe and reliable.
Description
The invention relates to the invention of double-action vane oil pump.The double-action vane oil pump is one of present most widely used oil pump.The logical pressure oil of having gone up in blade bottom, therefore suffered hydraulic coupling imbalance about oil suction district blade when but this oil pump of using always is worked.Serious friction, wearing and tearing and power loss are so just taking place between blade and stator, have influenced the efficient and the life-span of oil pump.Though twi-tier blade oil pump and spring leaf oil pump can make this equilibrium of forces, but the former blade relies on centrifugal force to throw away fully, the safety measure that there is no need, and safety reliability is relatively poor, the easy fatigue ruption of latter's spring, the pretightening force of spring also can produce frictional loss simultaneously.
The objective of the invention is provides a kind of blade that can make in the off-load of oil suction district for the shortcoming that overcomes known oil pump, improves the efficient and the life-span of oil pump, can improve the oil pump of safety reliability simultaneously again.
In this invention, make full use of action of centrifugal force, be aided with safety assurance simultaneously.Under normal circumstances centrifugal force can make blade overhanging and be closely attached on stator inner surface with enough speed and acceleration, and this is to be guaranteed by correct design.When blade can be closely attached on stator inner surface under action of centrifugal force, should not make blade acted on by any other.And being interfered the influence of factor when can not be normal overhanging when blade, safety measure just works.Safety measure forces blade overhanging and be closely attached on stator inner surface, makes the oil pump can proper functioning.
Above-mentioned safety measure is: the place, two sides at each blade sets up two gudgeons, and respectively processes a guiding annular groove on each thrust plate.Two gudgeons of blade are inserted respectively in two guiding annular grooves.After the rotor rotation, gudgeon just moves in the guiding annular groove.So just can utilize guiding annular groove inner side surface to overcome to make the normal overhanging inhibition of blade and make blade normally overhanging.
When the axial dimension of blade was little, blade one end had had gudgeon just.At this moment there is the guiding annular groove to get final product on a thrust plate.Because the overhanging pressure oil that do not need of blade promotes, so its bottom leads to low pressure oil when blade forwards the oil suction district to.So not only make vane unloading, also make the flow of oil pump irrelevant with vane thickness simultaneously, the oil transportation stationarity of oil pump just is not subjected to number of blade quantitative limitation like this, is not subjected to the restriction of epitrochanterian blade groove calibration inequality yet.
This oil pump is compared with known similar oil pump, has working pressure height, long service life, efficient height, the little and safe and reliable advantage of noise.
Fig. 1 is a view of this oil pump thrust plate, and Fig. 2 is a view of blade.The bottom surface of (1) expression guiding annular groove in these two figure, (2), (3) the represent respectively lead inside and outside side of annular groove, (4) expression is led to the trough of low pressure oil to the blade bottom, and (5) represent the blade gudgeon.
When blade was closely attached on stator inner surface under action of centrifugal force, blade gudgeon (5) was with all gapped between guide ring groove bottom (1) and two sides (2) and (3).When making the blade can not be normally overhanging and when breaking away from stator inner surface for a certain reason, just has eliminated in gap between blade gudgeon (5) and the guiding annular groove inner side surface (2), it is overhanging that guiding annular groove inner side surface (2) just promotes blade by blade gudgeon (5), thereby overcome disturbing factor, under action of centrifugal force, make blade be closely attached on stator inner surface again, make the oil pump can proper functioning.
The low pressure oil that the blade bottom is led to can feed the blade bottom by the inside of transmission shaft, also can not pass through transmission shaft, and feed the blade bottom beyond transmission shaft.If feed from transmission shaft is inner, then can enter from the axial bore of transmission shaft one end, flow out from radial hole, enter in the trough (4) on the thrust plate, in trough (4), enter the blade bottom again.Because transmission shaft and rotor are all at high speed rotating, this part fluid also has been subjected to action of centrifugal force.Can improve the oil suction condition of blade bottom like this, even blade overhanging also had certain impetus.
Revisal 86107444
After the preceding revisal of the capable revisal of file name page or leaf
Specification 29 (4) expressions are to the gudgeon of blade bottom (4) expression blade
The trough of logical low pressure oil.
2 10 (5) expression blade gudgeons delete this delegation
2 11 blade gudgeon (5) blade gudgeons (4)
In 2 14 (5) and the guiding interior axle of annular groove (4) and the guiding annular groove
The side, side
2 15 gudgeons (5) promote the outer gudgeon (4) of blade and promote outside the blade
Stretch,
2 18 blades bottom is led to ... delete this section
Figure of description 1 removes number in the figure 4, changes
Claims (3)
1, a kind of double cropping vane oil pump mainly is made of parts such as thrust plate, blade and rotors, and when blade forwarded the oil suction district to along with rotor, the logical low pressure oil in its bottom is characterized in that annular groove is arranged on the thrust plate, and gudgeon is arranged on the blade.
2, according to the oil pump of claim 1, it is overhanging that the annular groove on the described thrust plate is used for promoting blade.
3, according to the oil pump of claim 1, the gudgeon on the described blade will be contained in the annular groove on the thrust plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86107444 CN86107444A (en) | 1986-10-27 | 1986-10-27 | Vane unloading type safety vane oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86107444 CN86107444A (en) | 1986-10-27 | 1986-10-27 | Vane unloading type safety vane oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86107444A true CN86107444A (en) | 1987-10-21 |
Family
ID=4803563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86107444 Pending CN86107444A (en) | 1986-10-27 | 1986-10-27 | Vane unloading type safety vane oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86107444A (en) |
-
1986
- 1986-10-27 CN CN 86107444 patent/CN86107444A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |