CN108775504A - A kind of change displacement oil pump that can reduce abrasion - Google Patents
A kind of change displacement oil pump that can reduce abrasion Download PDFInfo
- Publication number
- CN108775504A CN108775504A CN201811005137.0A CN201811005137A CN108775504A CN 108775504 A CN108775504 A CN 108775504A CN 201811005137 A CN201811005137 A CN 201811005137A CN 108775504 A CN108775504 A CN 108775504A
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- China
- Prior art keywords
- rotor
- blade
- bearing
- sliding block
- oil pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a kind of change displacement oil pump that can reduce abrasion, including the pump housing, the pump housing is equipped with rotor chamber, rotor is installed in the rotor chamber, the rotor is fixed on armature spindle, the peripheral surface of rotor is equipped with multiple grooves, blade there are one being inserted in each groove, the blade can slide in a groove, there are one variable sliding blocks for the periphery set of rotor, there are one bearings for dress between rotor and the variable sliding block, the bearing includes inner ring, outer ring and rolling element, it is hinged at the top of blade on the inner ring, the outer ring is fixedly mounted in the variable sliding block.Since there are one bearings for installation between rotor and variable sliding block, it is hinged on the inner ring of bearing at the top of blade, inner ring is moved with blade, friction is not will produce between blade and bearing inner race, it is contacted for a face between inner ring and ball, the loss that thus further reduced frictional work improves the mechanical efficiency of lubricating oil pump, decreases the abrasion between parts.
Description
Technical field
The present invention relates to lubricating system of IC engine, and in particular to a kind of change displacement oil pump that can reduce abrasion.
Background technology
Lubricating oil pump type common at present mainly has gear pump, impeller pump, vane pump, screw pump, plunger pump etc..Wherein tooth
Due to the particularity of structure, variable is not easy to realize for wheel pump and impeller pump, therefore in the majority with fixed displacement.Vane pump is due to its structure
The realization of the design and variable effect of flexible sexual compatibility stroking mechanism, therefore, vane pump is to become discharge capacity mostly in the market.
Variable vane pump is broadly divided into mechanical first class pressure feedback discharge capacity and adjusts pump and two-stage electromagnetic valve control discharge capacity again
Two kinds of pump is adjusted, also has the secondary variable of a small number of dual spring forms to pump.It is adjustable that discharge capacity level-one may be implemented in level-on variable pump.Two level
Solenoid valve control becomes displacement oil pump and two-stage pressure adjustable may be implemented, and control accuracy and efficiency are pumped more compared to level-on variable
It is high.
In level-one is adjustable or the agent structure of the adjustable variable vane pump of solenoid valve two level, main includes having to turn
The pump housing of sub- chamber, the rotor being set in rotor chamber, and the variable sliding block with rotor eccentricity setting, rotor and variable sliding block it
Between several chamber volumes are divided into because of blade, the volume of each chamber volume changes because of the rotation of rotor banding movable vane piece,
To suck and be discharged machine oil, in being provided with oil inlet on the pump housing with the chamber volume corresponding position for increasing volume, in tool
Have reduce volume chamber volume corresponding position the pump housing on be provided with oil outlet, meanwhile, in the pump housing be equipped with to variable sliding block into
The elastic element of such as spring of row elasticity pushing tow.Elastic element passes through the elastic pushing tow to variable sliding block so that nature
Under, there is maximum eccentricity between variable sliding block and rotor；When increasing engine interior pressure with the rotation of rotor,
In the pressure feedback to variable sliding block, variable sliding block is made gradually to overcome the pushing tow of elastic element, and with the fortune relative to rotor
Dynamic, which is mostly to be based on the rotation so that inclined between variable sliding block and rotor using a pivotal axis as the rotation of rotary shaft
The heart realizes further changing for pumping oil mass away from tapering into.
Wherein, the peripheral surface of rotor is equipped with several grooves, and one end of blade is embedded in the groove of rotor, and can turn
Easy slide in the groove of son, centrifugal force when rotor rotates and under the action of be passed through root of blade pressure oil, blade top
Portion's cylinder is adjacent to the inner surface in variable sliding block, then just forms between two adjacent blades, stator and rotor and seals one by one
Chamber volume.Since vane tip cylinder is adjacent to the inner surface in variable sliding block, in this way in rotation, friction between the two
Power is necessarily larger, to reduce the mechanical efficiency of lubricating oil pump.
Invention content
The technical problem to be solved in the present invention is to provide a kind of change displacement oil pumps that can reduce abrasion.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：A kind of change discharge capacity machine that can reduce abrasion
Oil pump, including the pump housing, the pump housing are equipped with rotor chamber, are equipped with rotor in the rotor chamber, the rotor is fixed on rotor
On axis, the peripheral surface of the rotor is equipped with multiple grooves, inserts that there are one blades in each groove, and the blade can be in a groove
Sliding, there are one variable sliding blocks for the periphery set of the rotor, and there are one bearing, institutes for dress between the rotor and the variable sliding block
It includes inner ring, outer ring and rolling element to state bearing, is hinged at the top of the blade on the inner ring, and the outer ring is fixedly mounted on
In the variable sliding block.
Preferably, the top of the blade is axial cylindrical structure, and the inner ring of the bearing, which is equipped with, accommodates blade
The circular groove of top cylindrical body.
Preferably, the variable sliding block is made of thermosetting plastics.The weight of lubricating oil pump can thus be mitigated.
Preferably, the bearing is needle bearing.
In one embodiment, it is fixed by positioning pin between the outer ring of the bearing and the variable sliding block.
In one embodiment, it is interference fit between the outer ring of the bearing and the variable sliding block.
The beneficial effects of the invention are as follows：Since there are one bearing, the tops of blade for installation between rotor and variable sliding block
It being hinged on the inner ring of bearing, such inner ring will be moved with blade, not will produce friction between blade and bearing inner race,
It is contacted for a face between bearing inner race and rolling element, and has lubricating oil between them, thus further reduced frictional work
Loss, improve the mechanical efficiency of lubricating oil pump, decrease the abrasion between parts.
Description of the drawings
Fig. 1 is the overall structure diagram of lubricating oil pump in the embodiment of the present invention；
Fig. 2 is the blade construction schematic diagram of lubricating oil pump in the embodiment of the present invention；
Reference numeral is：
1 --- the pump housing 2 --- rotor 3 --- armature spindle
4 --- blade 5 --- quantitative sliding block 6 --- bearings
61 --- inner ring 62 --- outer ring 63 --- rolling elements
7 --- positioning pin.
Specific implementation mode
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and attached drawing
Bright, the content that embodiment refers to not is limitation of the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with spy
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.In the description of the present invention, it should be noted that unless otherwise specified and limited,
Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, can also be two
Connection inside element, can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill of this field
For personnel, the concrete meaning of the term can be understood as the case may be.
As shown in Figure 1, 2, the preferred embodiment of the present invention is：A kind of change displacement oil pump that can reduce abrasion, including pump
Body 1, the pump housing are equipped with rotor chamber, are equipped with rotor 2 in the rotor chamber, the rotor 2 is fixed on armature spindle 3, institute
The peripheral surface for stating rotor 2 is equipped with multiple grooves, is inserted there are one blade 4 in each groove, the blade 4 can be slided in a groove
Dynamic, there are one variable sliding blocks 5 for the periphery set of the rotor 2, and there are one bearings for dress between the rotor 2 and the variable sliding block 5
6, preferably needle bearing, the bearing 6 include inner ring 61, outer ring 62, rolling element 63, and the top of the blade 4 is hinged on institute
It states on inner ring 61, the top of blade 4 is the cylindrical structure of axial direction, and the inner ring 61 of the bearing, which is equipped with, accommodates 4 top of blade
The circular groove of cylinder；The variable sliding block 5 is made of thermosetting plastics, the outer ring 62 of bearing and the variable sliding block
It is fixed by positioning pin 7 between 5.
Since there are one bearings 6 for installation between rotor 2 and variable sliding block 5, the top of blade 4 is hinged on the inner ring of bearing
On 61, such inner ring 61 will be moved with blade 4, not will produce friction, inner ring 61 and rolling between blade 4 and inner ring 61
It is point face contact between body 63, and has lubricating oil between them, thus further reduced the loss of frictional work, improve
The mechanical efficiency of lubricating oil pump decreases the abrasion between parts.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other manner,
Do not depart from the technical program design under the premise of it is any it is obvious replacement within protection scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand the improvements of the present invention compared with the existing technology, this
Some attached drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, those of ordinary skill in the art should be aware that the element that these are omitted also may make up present disclosure.
Claims (6)
1. a kind of change displacement oil pump that can reduce abrasion, including the pump housing（1）, the pump housing（1）Be equipped with rotor chamber, described turn
Sub- intracavitary is equipped with rotor（2）, the rotor（2）It is fixed on armature spindle（3）On, the rotor（2）Peripheral surface be equipped with it is multiple
Groove, inserts that there are one blades in each groove（4）, the blade（4）It can slide in a groove, the rotor（2）Periphery
There are one variable sliding blocks for set（5）, it is characterised in that：The rotor（2）With the variable sliding block（5）Between dress there are one bearing
（6）, the bearing includes inner ring（61）, outer ring（62）And rolling element（63）, the blade（4）Top be hinged on the inner ring
（61）On, the outer ring（62）It is fixedly mounted on the variable sliding block（5）In.
2. the change displacement oil pump according to claim 1 that abrasion can be reduced, it is characterised in that：The blade（4）Top
Portion is the cylindrical structure of axial direction, the bearing（6）Inner ring（61）It is equipped with and accommodates blade（4）Top cylindrical body it is arc-shaped
Groove.
3. the change displacement oil pump according to claim 1 or 2 that abrasion can be reduced, it is characterised in that：The variable sliding block
（5）It is made of thermosetting plastics.
4. the change displacement oil pump according to claim 1 or 2 that abrasion can be reduced, it is characterised in that：The bearing（6）'s
Outer ring（62）With the variable sliding block（5）Between pass through positioning pin（7）It is fixed.
5. the change displacement oil pump according to claim 1 or 2 that abrasion can be reduced, it is characterised in that：The bearing（6）'s
Outer ring（62）With the variable sliding block（5）Between for interference fit.
6. the change displacement oil pump according to claim 1 or 2 that abrasion can be reduced, it is characterised in that：The bearing（6）For
Needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811005137.0A CN108775504A (en) | 2018-08-30 | 2018-08-30 | A kind of change displacement oil pump that can reduce abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811005137.0A CN108775504A (en) | 2018-08-30 | 2018-08-30 | A kind of change displacement oil pump that can reduce abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775504A true CN108775504A (en) | 2018-11-09 |
Family
ID=64028981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811005137.0A Pending CN108775504A (en) | 2018-08-30 | 2018-08-30 | A kind of change displacement oil pump that can reduce abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775504A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB971651A (en) * | 1961-06-12 | 1964-09-30 | James Blair Castle | A variable capacity rotary vane type pump |
| JP2000205147A (en) * | 1998-09-01 | 2000-07-25 | Hyun Jo Bon | Unbalanced vane pump |
| US20090142215A1 (en) * | 2007-11-29 | 2009-06-04 | Cygnor John E | Vane Pump with Tilting Pad Radial Bearings |
| CN103335202A (en) * | 2013-07-28 | 2013-10-02 | 湖南机油泵股份有限公司 | Main pump of mechanical valve-controlled double-cavity variable-displacement vane type oil pump |
| CN203322697U (en) * | 2013-07-17 | 2013-12-04 | 绵阳市万欣测控技术有限公司 | Connecting rod type variable-displacement engine oil pump |
| CN204610275U (en) * | 2013-10-23 | 2015-09-02 | 马勒国际有限公司 | For carrying the sliding formula pump of fluid and the control slide block for sliding formula pump |
| CN107709781A (en) * | 2015-07-21 | 2018-02-16 | 日立汽车系统株式会社 | Pump installation |
| CN208670562U (en) * | 2018-08-30 | 2019-03-29 | 湖南机油泵股份有限公司 | A kind of change displacement oil pump that can reduce abrasion |
-
2018
- 2018-08-30 CN CN201811005137.0A patent/CN108775504A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB971651A (en) * | 1961-06-12 | 1964-09-30 | James Blair Castle | A variable capacity rotary vane type pump |
| JP2000205147A (en) * | 1998-09-01 | 2000-07-25 | Hyun Jo Bon | Unbalanced vane pump |
| US20090142215A1 (en) * | 2007-11-29 | 2009-06-04 | Cygnor John E | Vane Pump with Tilting Pad Radial Bearings |
| CN203322697U (en) * | 2013-07-17 | 2013-12-04 | 绵阳市万欣测控技术有限公司 | Connecting rod type variable-displacement engine oil pump |
| CN103335202A (en) * | 2013-07-28 | 2013-10-02 | 湖南机油泵股份有限公司 | Main pump of mechanical valve-controlled double-cavity variable-displacement vane type oil pump |
| CN204610275U (en) * | 2013-10-23 | 2015-09-02 | 马勒国际有限公司 | For carrying the sliding formula pump of fluid and the control slide block for sliding formula pump |
| CN107709781A (en) * | 2015-07-21 | 2018-02-16 | 日立汽车系统株式会社 | Pump installation |
| CN208670562U (en) * | 2018-08-30 | 2019-03-29 | 湖南机油泵股份有限公司 | A kind of change displacement oil pump that can reduce abrasion |
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