CN206299991U - A kind of dystopy double-cycloid rotor lubricating oil pump - Google Patents
A kind of dystopy double-cycloid rotor lubricating oil pump Download PDFInfo
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- CN206299991U CN206299991U CN201621407274.3U CN201621407274U CN206299991U CN 206299991 U CN206299991 U CN 206299991U CN 201621407274 U CN201621407274 U CN 201621407274U CN 206299991 U CN206299991 U CN 206299991U
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- oil pump
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- double
- outer rotor
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Abstract
The utility model discloses a kind of dystopy double-cycloid rotor lubricating oil pump, including lubricating oil pump body, pump cover and rotor, rotor includes internal rotor and outer rotor, and outer rotor includes the first outer rotor and the second outer rotor that overlap up and down；The angle that first outer rotor and the second outer rotor correspondence concave tooth are projected in same level is 22.5 degree；Internal rotor includes the first internal rotor and the second internal rotor, and the angle that the first internal rotor and the second internal rotor correspondence double wedge are projected in same level is 22.5 degree.The design of double oil pockets substantially improves the service condition of oil pump, oil pump performance is greatly improved.Traditional big flow impeller pump, only single oil sucting cavity, pumping cavity, in the process of running, the suction of machine oil, extrusion pulse phenomenon are more apparent, it is unfavorable for engine lubrication, lubricating oil pump is arranged to double suction oil pocket, double pumping cavities in the application, reduces and even eliminates pulse phenomenon, is more beneficial for engine lubrication.
Description
Technical field
The utility model is related to a kind of dystopy double-cycloid rotor lubricating oil pump.
Background technology
As internal combustion engine is in multi-field extensive use, its speed-raising, slewing range have it is larger widen, i.e. performance and quality
It is greatly improved.Therefore, Modern Internal-Combustion Engine proposes requirement higher to the performance of lubricating system critical piece lubricating oil pump,
The middle-size and small-size internal combustion engine of current China generally uses internal messing cycloidal rotor oil pump.In long-term production practices, it has been found that use
In the rotor-type oil pump of lubricating system of IC engine, some positions cause oil pump pump oil to be imitated due to there is lack of lubrication, quick abrasion
Rate decay is fast, and especially big flow impeller pump is more prominent, have impact on the service life of oil pump.
Around the performance and Acceptable life that how to improve oil pump, we have done research and experiment repeatedly, it is believed that, turn
Sub- pump in the course of the work, due to oil suction, presses oil the pressure differential of generation and causes to act on moment unbalance on pump shaft, makes pump shaft
Run in the state of discontinuity equalization, increased abnormal abrasion, have impact on the service life of pump shaft.Some are high-power
In impeller pump operation process, because oil suction cavity volume is excessive, when have emptying phenomenon, reduce the operating efficiency of lubricating oil pump,
Waste energy.
The content of the invention
The purpose of this utility model is to provide a kind of dystopy double-cycloid rotor lubricating oil pump, solves lubricating oil pump in the prior art
Abnormal serious wear, and high-power oil suction cavity volume it is excessive cause to have emptying phenomenon to occur, ineffective technology
Problem.
In order to solve the above-mentioned technical problem the utility model, adopts the following technical scheme that：
A kind of dystopy double-cycloid rotor lubricating oil pump, including lubricating oil pump body, pump cover and rotor, the rotor include internal rotor
And outer rotor, the concave tooth quantity of the outer rotor than internal rotor double wedge more than one, the outer rotor includes overlapping up and down
The first outer rotor and the second outer rotor, the structure of the first outer rotor and the second outer rotor is identical；First outer rotor and
The angle that two outer rotors correspondence concave tooth is projected in same level is 22.5 degree；The internal rotor includes what is overlapped up and down
The structure of the first internal rotor and the second internal rotor, the first internal rotor and the second internal rotor is identical, turns in the first internal rotor and second
The angle that son correspondence double wedge is projected in same level is 22.5 degree；First internal rotor is arranged in the first outer rotor, and second
Internal rotor is arranged in the second outer rotor.
Further improve, the height of first outer rotor, the second outer rotor, the first internal rotor and the second internal rotor is homogeneous
Together.
Further improve, first outer rotor and the second outer rotor are five concave tooth；In first internal rotor and second
Rotor is four double wedges.
Compared with prior art, the beneficial effects of the utility model are：
Change a set of inner and outer rotors of traditional lubricating oil pump into two sets of highly equal inner and outer rotors, the first internal rotor and second
Internal rotor makes the single oil sucting cavity of traditional oil pump, pumping cavity the both ends of the surface of pump cover, the pump housing respectively into right into 22.5 degree of angles
Space is equal into 22.5 degree of the two of angle oil sucting cavities, pumping cavities to answer position to be all provided with being set to, and so design solves conventional pump and deposits
In deficiency.Traditional lubricating oil pump one side sets oil sucting cavity, pumping cavity, because oil suction cavity space is being continuously increased in operation, oil sucting cavity
Interior generation negative pressure, realizes oil suction, and for high-power oil pump, oil sucting cavity is than larger, then in an oil-absorbing process, oil sucting cavity
Not being filled also had turned to regard to rotor and press oil position, cause emptying phenomenon, waste power consumption.In the application, rotor and the pump housing,
The both ends of the surface correspondence position of pump cover is all provided with being set to the equal oil sucting cavity in space, pumping cavity, then during machine oil pump operation, the oil suction at two ends
Chamber oil suction simultaneously, and oil suction cavity volume only has original half, then solve the problems, such as that oil sucting cavity is emptied rotor in operation.Together
When, inner and outer rotors are divided into highly equal two parts, two internal rotors in oil-absorbing process, are acted on interior into 22.5 degree of angles
Torque on armature spindle is just cancelled out each other, and makes pump shaft stress equalization in the process of running, reduces abnormal abrasion, is reduced
Irrational power consumption, extends the service life of pump shaft.Such design makes the general structure of lubricating oil pump more reasonable, especially
Big flow oil pump, due to needing the space of larger oil sucting cavity, pumping cavity, but is often limited by installation site, oil pump body
Product can not possibly be too big, thus oil sucting cavity, pumping cavity can typically be designed it is relatively deep, so saying causes easily occur oil suction in operation
It is not enough, a problem that be emptied, and in the application, the design of double oil pockets substantially improves the service condition of oil pump, makes oil pump
Can be greatly improved.Traditional big flow impeller pump, only single oil sucting cavity, pumping cavity, in the process of running, machine
The suction of oil, to extrude pulse phenomenon more apparent, is unfavorable for engine lubrication, and lubricating oil pump is arranged to double suction oil pocket, double in the application
Pumping cavity, reduces and even eliminates pulse phenomenon, is more beneficial for engine lubrication.
Brief description of the drawings
Fig. 1 is the structural representation of dystopy double-cycloid rotor lubricating oil pump outer rotor described in the utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of dystopy double-cycloid rotor internal rotor of lubricating pump described in the utility model.
Fig. 4 is the top view of Fig. 3.
Specific embodiment
To make the purpose of this utility model and technical scheme clearer, below in conjunction with the utility model embodiment to this
The technical scheme of utility model is clearly and completely described.
As Figure 1-4, a kind of dystopy double-cycloid rotor lubricating oil pump, including lubricating oil pump body, pump cover and rotor, described turn
Attached bag includes internal rotor and outer rotor, the concave tooth quantity of the outer rotor than internal rotor double wedge more than one, the outer rotor includes
The first outer rotor 1 and the second outer rotor 2 for overlapping up and down, the first outer rotor 1 are identical with the structure of the second outer rotor 2,
It is five concave tooth；The angle that the correspondence of first outer rotor, 1 and second outer rotor 2 concave tooth is projected in same level is 22.5
Degree；The internal rotor includes the first internal rotor 3 and the second internal rotor 4 that overlap, the first internal rotor 3 and the second internal rotor 4
Structure it is identical, be four double wedges, what the first internal rotor 3 and the correspondence double wedge of the second internal rotor 5 were projected in same level
Angle is 22.5 degree；First internal rotor 3 is arranged in the first outer rotor 1, and the second internal rotor 4 is arranged in the second outer rotor 2, institute
State the height all same of the first outer rotor 1, the second outer rotor 2, the first internal rotor 3 and the second internal rotor 4.
Change a set of inner and outer rotors of traditional lubricating oil pump into two sets of highly equal internal rotors, outer rotors, the first internal rotor 3
With 22.5 degree of angles of the second 4 one-tenth of internal rotor, by the single oil sucting cavity of traditional oil pump, pumping cavity make into respectively pump cover, the pump housing two
End face is all provided with being set to that space is equal into 22.5 degree of the two of angle oil sucting cavities, pumping cavities in correspondence position, and so design is solved
Conventional pump Shortcomings.Traditional lubricating oil pump one side sets oil sucting cavity, pumping cavity, because oil suction cavity space is constantly increasing in operation
Plus, negative pressure is produced in oil sucting cavity, oil suction is realized, for high-power oil pump, oil sucting cavity is than larger, then in an oil-absorbing process
In, oil sucting cavity not being filled also had turned to regard to rotor and presses oil position, causes emptying phenomenon, wastes power consumption.In the application, turning
Son is all provided with being set to the equal oil sucting cavity in space, pumping cavity with the both ends of the surface correspondence position of the pump housing, pump cover, then during machine oil pump operation,
The oil suction simultaneously of the oil sucting cavity at two ends, and oil suction cavity volume only has original half, then oil sucting cavity is inhaled in operation to solve rotor
Empty problem.Meanwhile, inner and outer rotors are divided into highly equal two parts, two internal rotors into 22.5 degree of angles, in oil-absorbing process
In, the torque acted on inner rotor shaft is just cancelled out each other, and makes pump shaft stress equalization in the process of running, is reduced abnormal
Abrasion, reduces irrational power consumption, extends the service life of pump shaft.Such design makes the general structure of lubricating oil pump more
Rationally, especially big flow oil pump, due to needing the space of larger oil sucting cavity, pumping cavity, but is often limited by installation site
System, lubricating oil pump volume can not possibly be too big, thus oil sucting cavity, pumping cavity can typically be designed it is relatively deep, so saying causes in operation
In easily occur that oil suction is not enough, a problem that be emptied, and in the application, the design of double oil pockets substantially improves the operation bar of oil pump
Part, makes oil pump performance be greatly improved.Traditional big flow impeller pump, only single oil sucting cavity, pumping cavity, in fortune
During row, the suction of machine oil, extrusion pulse phenomenon are more apparent, are unfavorable for engine lubrication, and lubricating oil pump is arranged in the application
Double suction oil pocket, double pumping cavities, reduce and even eliminate pulse phenomenon, are more beneficial for engine lubrication.
Do not done in the utility model illustrate be prior art or be capable of achieving by prior art, Er Qieben
It is only preferable case study on implementation of the present utility model that case is embodied described in utility model, not for limiting this practicality
New practical range.The equivalence changes that i.e. all contents according to present utility model application the scope of the claims are made and modification, should all make
It is technology category of the present utility model.
Claims (3)
1. a kind of dystopy double-cycloid rotor lubricating oil pump, including lubricating oil pump body, pump cover and rotor, the rotor include internal rotor and
Outer rotor, it is characterised in that the concave tooth quantity of the outer rotor than internal rotor double wedge more than one, the outer rotor includes upper and lower
The structure of the first outer rotor and the second outer rotor for overlapping, the first outer rotor and the second outer rotor is identical；Outside described first
The angle that rotor and the second outer rotor correspondence concave tooth are projected in same level is 22.5 degree；The internal rotor includes weighing up and down
The structure of folded the first internal rotor and the second internal rotor for setting, the first internal rotor and the second internal rotor is identical, the first internal rotor and
The angle that second internal rotor correspondence double wedge is projected in same level is 22.5 degree；First internal rotor is arranged on the first outer rotor
In, the second internal rotor is arranged in the second outer rotor.
2. dystopy double-cycloid rotor lubricating oil pump according to claim 1, it is characterised in that first outer rotor, second
The height all same of outer rotor, the first internal rotor and the second internal rotor.
3. dystopy double-cycloid rotor lubricating oil pump according to claim 1 and 2, it is characterised in that first outer rotor and
Second outer rotor has five concave tooth；First internal rotor and the second internal rotor have four double wedges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621407274.3U CN206299991U (en) | 2016-12-20 | 2016-12-20 | A kind of dystopy double-cycloid rotor lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621407274.3U CN206299991U (en) | 2016-12-20 | 2016-12-20 | A kind of dystopy double-cycloid rotor lubricating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299991U true CN206299991U (en) | 2017-07-04 |
Family
ID=59215000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621407274.3U Expired - Fee Related CN206299991U (en) | 2016-12-20 | 2016-12-20 | A kind of dystopy double-cycloid rotor lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327688A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of dual-rotor structure lubricating oil pump |
-
2016
- 2016-12-20 CN CN201621407274.3U patent/CN206299991U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327688A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of dual-rotor structure lubricating oil pump |
| CN107327688B (en) * | 2017-08-17 | 2022-12-06 | 湖南机油泵股份有限公司 | Oil pump with double-rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20211220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |