CN107420298A - The impeller pump that a kind of internal rotor floats - Google Patents
The impeller pump that a kind of internal rotor floats Download PDFInfo
- Publication number
- CN107420298A CN107420298A CN201710809013.7A CN201710809013A CN107420298A CN 107420298 A CN107420298 A CN 107420298A CN 201710809013 A CN201710809013 A CN 201710809013A CN 107420298 A CN107420298 A CN 107420298A
- Authority
- CN
- China
- Prior art keywords
- internal rotor
- oil
- rotor
- pump
- rotating shaft
- 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
Links
- 238000005461 lubrication Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 54
- 230000005540 biological transmission Effects 0.000 description 10
- 239000012530 fluid Substances 0.000 description 7
- 238000000605 extraction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/809—Lubricant sump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to automobile gearbox rotor pump technical field, the impeller pump that specially a kind of internal rotor floats, including pump case, pump cover, rotating shaft, oil inlet passage, oil drain passage, the outer rotor and internal rotor being inlaid in the rotor chamber of pump case, internal rotor and the outer rotor intermeshing, the internal rotor is movably arranged in rotating shaft and the internal rotor can move axially along rotating shaft so that internal rotor can remain with the reasonable lubrication gap between the working face of pump case and pump cover, avoid eccentric wear phenomenon.
Description
Technical field
The present invention relates to automobile gearbox rotor pump technical field, specially a kind of impeller pump of internal rotor floating.
Background technology
In recent years, flourishing with auto industry, new skill is also constantly researched and developed for the supporting component vendors of automobile factory
Art, its product quality have also obtained large increase.
And with requirement more and more higher of the people to the comfortableness of automobile, noise when vehicle is run is increasingly by consumer
Pay attention to, and the operation noise for reducing vehicle is a great system engineering, it is necessary to reduce the fortune of all parts of automobilism
Turn noise；As the common knowledge of those skilled in the art, the inner and outer rotors running noise of the impeller pump of automobile gearbox is actual
On it is very small, most of noise comes from other transmission parts, such as the meshing gear of drive shaft, and more commonly used method
Be exactly by drive automobile gearbox impeller pump design of gears be helical gear or herringbone bear（The requirement on machining accuracy of herringbone bear
Height, cost is also high, less suitable for the oil pump drive gear of automotive transmission）, by lasting use and longer cycle
Research is found, is revised as after helical gear due to pushing away for rotating shaft one axial direction of generation to impeller pump during Helical gear Transmission
Power, this axial thrust are applied directly on rotor, promote rotor and pump case to contact and produce a deboost by pump case
Offset, be easy for that internal rotor and the eccentric wear phenomenon of pump case working face side occurs over time afterwards, finally make stamp-album
The fit clearance of rotor and working face it is excessive and can not pump oil, shorten automobile gearbox impeller pump service life, also be exactly this
One problem causes numerous speed changer producers to have to abandon helical gear design.
The content of the invention
It is applied to Helical gear Transmission it is an object of the invention to provide one kind and is not susceptible to internal rotor and pump case working face
The automobile gearbox impeller pump of eccentric wear.
To realize this purpose, the present invention adopts the following technical scheme that：The impeller pump that a kind of internal rotor floats, including pump
Shell, pump cover, rotating shaft, oil-feed break-make, oil drain passage, the outer rotor and internal rotor being inlaid in the rotor chamber of pump case, described interior turn
Son and outer rotor intermeshing, it is characterised in that：The internal rotor is movably arranged in rotating shaft and the internal rotor can be along rotating shaft
Axial movement.
Preferably, the internal rotor and rotating shaft use key connection, and the key keeps gap to coordinate with keyway.
Further, the axis hole both sides of the internal rotor are provided with the first circular depression, the axis hole of the pump case working face
The second circular depression is provided with the axis hole of place and pump cover, second circular depression is communicated with the lubricating oil of oil drain passage
Groove.
Further, it is relative in the side wall of the pump case rotor chamber to be provided with the first oil groove and the second oil groove, first oil
Groove and the second oil groove are located on the internal rotor and the line in the outer rotor center of circle, and first oil groove and the second oil groove connect respectively
Lead to the oil inlet passage and oil drain passage.
Further, the wedge-shaped oil scupper of oil drain passage is communicated with the working face of the pump case side and connects oil-feed
The oil-feed tank of passage.
The beneficial effects of the present invention are：The present invention solves prior art automobile gearbox rotor pump drive gear by straight
Gear is changed to the working face of the internal rotor of impeller pump and pump case after Helical gear Transmission eccentric wear occurs to cause whole pump to fail and contract
The problem of short service life, use range of the impeller pump as transmission oil pump is greatly widened.
Brief description of the drawings
Fig. 1 is the overall schematic of the embodiment of the present invention.
Fig. 2 is the pump case schematic diagram of the embodiment of the present invention.
Fig. 3 is the pump cover schematic diagram of the embodiment of the present invention.
Fig. 4 is the part-structure schematic diagram of the embodiment of the present invention.
Fig. 5 is the pump cover and rotating shaft schematic diagram of the embodiment of the present invention.
In figure：
1- pump case 2- pump cover 3- rotating shafts
4- oil inlet passage 5- oil drain passage 6- rotor chambers
7- outer rotor 8- internal rotors the first circular depressions of 9-
10- the second circular depression 11- oil-ways the first oil grooves of 12-
13- the second oil groove 14- wedge shape oil scupper 15- oil-feed tanks.
Embodiment
In the description of the invention, it is to be understood that the orientation or position relationship of the instruction such as term " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.
In addition, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanically connecting or being electrically connected
Connect or the connection of two element internals, can be joined directly together, can also be indirectly connected by intermediary, for
For one of ordinary skill in the art, the concrete meaning of the term can be understood as the case may be.
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and accompanying drawing
Bright, the content that embodiment refers to not is limitation of the invention.
As background technology is sayed, its noise has controlled when internal rotor 8 and outer rotor 7 operating of the impeller pump of gearbox
It is fine, come from the running noise of impeller pump for further reduction, inventor has focused onto the drive of drive shaft 3
On moving gear, in experience before this, the spur gear of drive shaft 3 is changed into Helical gear Transmission it is significantly reduced transmission to make an uproar
The effect of sound, then actually use interpretation of result and but show, because Helical gear Transmission can produce the component of an axial direction, the component
Cause the working face of internal rotor 8 and pump case 1 that eccentric wear occurs, failed so as to cause seal clearance excessive, and this failure base
This can only be repaired, therefore got rid of by most speed changer producers without the possibility repaired by changing internal rotor 8 and pump case 1
Abandon.In order to solve this technical problem, internal rotor 8 is revised as floating type design, Helical gear Transmission mistake by inventor's creativeness
The axial thrust of countershaft will not be applied directly on internal rotor in journey, and the gap between internal rotor and pump case can keep designing substantially
When lubrication gap, the problem of this just thoroughly avoids internal rotor 8 and 1 eccentric wear of pump case.
Therefore, as shown in figure 1, the impeller pump that a kind of internal rotor floats, including pump case 1, pump cover 2, rotating shaft 3, oil inlet passage
4, oil drain passage 5, the outer rotor 7 and internal rotor 8 being inlaid in the rotor chamber 6 of pump case 1, the internal rotor 8 and outer rotor 7 are mutual
Engagement, the internal rotor 8 is movably arranged in rotating shaft 3 and the internal rotor 8 can move axially along rotating shaft 3.
To realize the floating type design of internal rotor 8, internal rotor 8 is movably arranged in rotating shaft 3 by inventor, if rotating shaft 3
Move axially, internal rotor 8 can't be servo-actuated therewith, so as to ensure that internal rotor 8 and pump case 1 and the working face of pump cover 2
（Pump case, the common knowledge that the working face of pump cover is this area, will herein be described in detail）Between reasonable seal clearance.
As a kind of preferred scheme of rotating shaft 3 and the activity installation of internal rotor 8, internal rotor 8 of the invention and rotating shaft 3 use key
Connection, the key keep gap to coordinate with keyway.
Above-mentioned connected mode is a kind of reliable connected mode, and the keyway and bond energy that gap coordinates enough are kept
Certain free gap, enable internal rotor that the skew of certain position to occur vertically, while also ensure that and reliably connect.
As the improvement on the basis of above-described embodiment, the axis hole both sides of the internal rotor 8 in embodiment may be provided for
The first circular depression 9 of certain fluid is stored, is provided for storing up at the axis hole of the working face of pump case 1 and at the axis hole of pump cover 2
The second circular depression 10 of certain fluid is deposited, second circular depression 10 is communicated with the oil-way of oil drain passage 5
11。
First circular depression 9, the second circular depression 10 and oil-way 11 enable the hydraulic oil in oil drain passage 5
Moment is delivered between internal rotor 8 and the contact surface of pump case 1 and pump cover 2, simultaneously because the first circular depression 9 and second is circular
The oil storage chamber formed between depressed part 10（, can be with because the gap between internal rotor 8 and the working face of pump case 1 and pump cover 2 is very small
Approximately think to form sealed chamber between the first circular depression 9 and the second circular depression 10）So that the both sides of internal rotor 8
Equal oil pressure is remained, so that whole internal rotor 8 remains the state floated in rotor chamber 6, is greatly reduced
The probability of abrasion.
As the improvement on the basis of above-described embodiment, inventor is relative also in the side wall of the rotor chamber 6 of pump case 1 to be provided with the
One oil groove 12 and the second oil groove 13, the oil groove 13 of the first oil groove 12 and second are located at the internal rotor 8 and the center of circle of outer rotor 7
On line, and the oil groove 13 of first oil groove 12 and second is respectively communicated with the oil inlet passage 4 and oil drain passage 5.
According to the common knowledge of those skilled in the art, the pump oil principle of impeller pump is by internal rotor 8 and outer rotor 7
Tooth engages the airtight chamber to be formed and pumps fluid, during pumping, because the volume of this airtight chamber can occur
Change, therefore there is the process compressed in fluid, be to determine due to the position of rotating shaft 3 of internal rotor 8 in airtight chamber, thus
The center of rotation of outer rotor 7 certainly will be changed due to the extruding of fluid, and the active force of this extruding is ultimately applied to outer turn
Son 7 is with the side wall of the rotor chamber 6 of pump case 1, on the one hand causing the eccentric wear of outer rotor 7 and the side wall of rotor chamber 6, on the other hand making pump
The efficiency of oil reduces（Because outer rotor 7 with the gap that internal rotor 8 engages becomes in the presence of fluid is compressed big, fluid can from
Gap part leakage is back to oil inlet passage 4, so that the efficiency of pump oil reduces）.In order to solve this problem, the present invention is in pump case
It has been oppositely arranged in the side wall of 1 rotor chamber 6 for lubricating outer rotor 7 and keeping back lash between outer rotor 7 and internal rotor 8
First oil groove 12 and the second oil groove 13, and the oil groove 13 of first oil groove 12 and second is respectively communicated with the oil inlet passage 4 and row
Oily passage 5.
Further, the wedge-shaped oil scupper 14 of oil drain passage 5 is communicated with the working face of the pump case 1 and connects oil-feed
The oil-feed tank 15 of passage 4.
Further to reduce the running noise of impeller pump, the impeller pump course of work is decomposed into oil-feed, pumping, row by inventor
Oily three processes, inventor notice the running noise of impeller pump mostly come from oil extraction process and oil-absorbing process produce vibrations and
Noise, the vibrations of oil extraction mostly come from pressure pulse caused by the steep drop of oil extraction pressure, and the vibrations of oil-feed come under high rotating speed
The oil-feed shattered to pieces caused pulse of caused vacuum cavitation phenomena and pumping stages vacuole not in time, by test of many times and divides
Analysis, inventor set one in the oil drain passage 5 of impeller pump and are easy to the wedge-shaped oil scupper 14 of oil extraction in advance to significantly reduce oil extraction
Vibrations；Simultaneously to make oil-feed under high rotating speed abundant, inventor increases the oil-feed area of oil inlet passage 4 as far as possible（According to this
Art personnel's common knowledge, impeller pump oil-feed are mainly the oil-feed tank oil-feed from pump case 1 and pump cover 2）, due to internal rotor 7
It is irregular with the profile for engaging the closed chamber formed of outer rotor 8, thus the oil-feed tank 15 of oil inlet passage 4 is arranged to and sealed
The similar shape of the appearance and size of closed chamber room can greatly increase the time of oil-feed, so that oil-feed is abundant.
Above-described embodiment is the preferable implementation of the present invention, and in addition, the present invention can be realized with other manner,
Any obviously replaced on the premise of not departing from the technical program design within protection scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand improvements of the present invention relative to prior art, this
Some accompanying 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 these elements omitted also may make up present disclosure.
Claims (5)
1. the impeller pump that a kind of internal rotor floats, including pump case（1）, pump cover（2）, rotating shaft（3）, oil inlet passage（4）, oil drain passage
（5）, it is inlaid in pump case（1）Rotor chamber（6）Interior outer rotor（7）And internal rotor（8）, the internal rotor（8）And outer rotor（7）
Intermeshing, it is characterised in that：The internal rotor（8）It is movably arranged on rotating shaft（3）Upper and described internal rotor（8）Can be along rotating shaft
（3）Axial movement.
2. the impeller pump that a kind of internal rotor according to claim 1 floats, it is characterised in that：The internal rotor（8）With turn
Axle（3）Using key connection, the key keeps gap to coordinate with keyway.
3. the impeller pump that a kind of internal rotor according to claim 1 floats, it is characterised in that：The internal rotor（8）Axle
Hole both sides are provided with the first circular depression（9）, the pump case（2）At the axis hole of working face and pump cover（2）Axis hole at be provided with the
Two circular depressions（10）, second circular depression（10）It is communicated with oil drain passage（5）Oil-way（11）.
4. the impeller pump that a kind of internal rotor according to claim 1 floats, it is characterised in that：The rotor chamber（6）Side
It is relative on wall to be provided with the first oil groove（12）With the second oil groove（13）, first oil groove（12）With the second oil groove（13）Positioned at described
Internal rotor（8）And outer rotor（7）On the line in the center of circle, and first oil groove（12）With the second oil groove（13）It is respectively communicated with described
Oil inlet passage（4）And oil drain passage（5）.
5. the impeller pump that a kind of internal rotor according to claim 1-2 floats, it is characterised in that：The pump case（2）Side
Working face on be communicated with oil drain passage（5）Wedge-shaped oil scupper（14）With connect oil inlet passage（4）Oil-feed tank（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710809013.7A CN107420298A (en) | 2017-09-09 | 2017-09-09 | The impeller pump that a kind of internal rotor floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710809013.7A CN107420298A (en) | 2017-09-09 | 2017-09-09 | The impeller pump that a kind of internal rotor floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420298A true CN107420298A (en) | 2017-12-01 |
Family
ID=60431877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710809013.7A Pending CN107420298A (en) | 2017-09-09 | 2017-09-09 | The impeller pump that a kind of internal rotor floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105084A (en) * | 2018-01-10 | 2018-06-01 | 浙江万安其弗汽车零部件有限公司 | A kind of two-way Swing line oil pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246482A (en) * | 1987-04-01 | 1988-10-13 | Honda Motor Co Ltd | Oil pump |
| CN2175839Y (en) * | 1993-05-29 | 1994-08-31 | 重庆水泵厂 | Cycloidal internal gear pump for chemical engineering |
| JP2001263263A (en) * | 2000-03-22 | 2001-09-26 | Toyoda Mach Works Ltd | Internal gear pump device |
| CN1550672A (en) * | 2003-05-19 | 2004-12-01 | �ִ��Զ�����ʽ���� | Oil pump structure |
| JP2011032892A (en) * | 2009-07-30 | 2011-02-17 | Daihatsu Motor Co Ltd | Trochoid type rotary pump |
| CN204785471U (en) * | 2015-07-07 | 2015-11-18 | 重庆长安汽车股份有限公司 | Rotor formula oil pump |
| CN105298837A (en) * | 2014-07-23 | 2016-02-03 | 株式会社捷太格特 | Electric pump unit |
| CN207229379U (en) * | 2017-09-09 | 2018-04-13 | 湖南机油泵股份有限公司 | The impeller pump that a kind of internal rotor floats |
-
2017
- 2017-09-09 CN CN201710809013.7A patent/CN107420298A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246482A (en) * | 1987-04-01 | 1988-10-13 | Honda Motor Co Ltd | Oil pump |
| CN2175839Y (en) * | 1993-05-29 | 1994-08-31 | 重庆水泵厂 | Cycloidal internal gear pump for chemical engineering |
| JP2001263263A (en) * | 2000-03-22 | 2001-09-26 | Toyoda Mach Works Ltd | Internal gear pump device |
| CN1550672A (en) * | 2003-05-19 | 2004-12-01 | �ִ��Զ�����ʽ���� | Oil pump structure |
| JP2011032892A (en) * | 2009-07-30 | 2011-02-17 | Daihatsu Motor Co Ltd | Trochoid type rotary pump |
| CN105298837A (en) * | 2014-07-23 | 2016-02-03 | 株式会社捷太格特 | Electric pump unit |
| CN204785471U (en) * | 2015-07-07 | 2015-11-18 | 重庆长安汽车股份有限公司 | Rotor formula oil pump |
| CN207229379U (en) * | 2017-09-09 | 2018-04-13 | 湖南机油泵股份有限公司 | The impeller pump that a kind of internal rotor floats |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105084A (en) * | 2018-01-10 | 2018-06-01 | 浙江万安其弗汽车零部件有限公司 | A kind of two-way Swing line oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
|
| RJ01 | Rejection of invention patent application after publication |