CN107435629A - A kind of impeller pump pump case and impeller pump - Google Patents
A kind of impeller pump pump case and impeller pump Download PDFInfo
- Publication number
- CN107435629A CN107435629A CN201710809023.0A CN201710809023A CN107435629A CN 107435629 A CN107435629 A CN 107435629A CN 201710809023 A CN201710809023 A CN 201710809023A CN 107435629 A CN107435629 A CN 107435629A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump case
- impeller
- oil
- impeller pump
- 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
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 15
- 230000007423 decrease Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 44
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- F04C2240/30—Casings or housings
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/16—Wear
- F04C2270/165—Controlled or regulated
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 rotor pump technical field, specially a kind of impeller pump pump case and impeller pump, including oil inlet, oil discharge outlet and the rotor chamber in pump case, the high-pressure injection passage of the rotor chamber side wall oiling to oil discharge outlet side is additionally provided with the pump case, the entrance of the high-pressure injection passage communicates with oil discharge outlet；Present invention also offers a kind of impeller pump for being not easy eccentric wear, the problem of in turn resulting in the decline of rotor pump volumetric efficiency is easily worn in the impeller pump pump case oil extraction side that the impeller pump overcomes prior art.
Description
Technical field
The present invention relates to rotor pump technical field, specially a kind of impeller pump pump case and impeller pump.
Background technology
Cycloid rotor pump is because of its intrinsic design feature（Outer rotor and the fit clearance of pump case inner chamber are smaller）And generally deposit
The problem of lubricating oil film in pump case inner chamber and outer rotor is not easy to establish, the contact surface of pump case inner chamber and outer rotor is very in the course of time
Easily worn due to insufficient lubrication, Chinese patent（Application number：201210167476.5）A kind of floated cycloid is disclosed to turn
Sub- oil transfer pump, the pump is provided with multiple through slots for storing a small amount of lubricating oil on the outer peripheral face of outer rotor, in pump housing inner chamber
Bottom surface is also provided with annular groove close to the position of inner peripheral surface, annular groove connection low pressure oil suction chamber, is so achieved that
From low pressure oil sucting cavity to the effect of pump case and outer rotor gap fuel feeding.
Although the program alleviates the problem of pump case wears with outer rotor to a certain extent, it can not still reach reason
The lubricant effect thought, can not particularly solve the problems, such as pump case eccentric wear：As shown in figure 1, with internal rotor and the company in the outer rotor center of circle
The working region of impeller pump is divided into oil suction area and oil extraction area by line, impeller pump at work, outer turn positioned at oil extraction area side
Son can be more close to the oil extraction area side of rotor chamber by by the active force of internal rotor and the fluid of outer rotor compression all the time, and this makes
Just little lubrication gap is smaller originally between outer rotor and pump case, be less useful for the foundation of lubricating oil film, and continuous service one
After the section time, the pump case inner chamber of impeller pump is easy to the eccentric wear phenomenon for deviation oil extraction area side occur, and the time one is grown, will result in
The back lash of inner and outer rotors exceedes design requirement so that the volumetric efficiency of whole pump declines or even pump housing failure.
The content of the invention
In view of this, the invention provides a kind of pump case that can effectively avoid pump case interior wall oil extraction lateral deviation from grinding.
To realize this purpose, the present invention adopts the following technical scheme that：A kind of impeller pump pump case, including oil inlet, oil extraction
Mouthful and the rotor chamber in pump case, the high pressure injection of from the rotor chamber side wall oiling to oil discharge outlet side is additionally provided with the pump case
Oily passage, the entrance of the high-pressure injection passage communicate with oil discharge outlet.
Further, the low pressure oiling passage of the rotor chamber side wall oiling to oil inlet side is additionally provided with the pump case,
The entrance connection oil inlet of the low pressure oiling passage.
Further, the outlet of the high-pressure injection passage and low pressure oiling passage is located in rotor chamber side wall.
Further, the outlet of the high-pressure injection passage and low pressure oiling passage is located at pump case bottom close to rotor chamber side
The position of wall.
Further, the rotor chamber side wall is provided with some the first axial arranged grooves.
The present invention's also provides a kind of impeller pump for being not easy eccentric wear, and the impeller pump includes any one foregoing pump case.
Further, the outer peripheral face on the outer rotor in the impeller pump is provided with some the second axial arranged grooves.
The beneficial effects of the present invention are：Impeller pump pump case provided by the invention overcomes prior art pump case easily at work
The problem of occurring close to oil discharge outlet side eccentric wear, no matter under which kind of working speed, high-pressure injection passage of the invention all the time can
A pressure lubrication oil suitable with oil extraction pressure is provided, so as to which high-voltage oil liquid is applied on outer rotor not when offsetting because of oil extraction
Equilibrant force, can either keep rational back lash between outer rotor and internal rotor, and and can enough protects the conjunction between outer rotor and pump case
Lubrication gap is managed, makes to establish good lubricating oil film between outer rotor and pump case all the time and try one's best and avoid the generation of eccentric wear problem.
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.
Fig. 6 is the outer rotor schematic diagram of the embodiment of the present invention.
In figure：
1- oil inlet 2- oil discharge outlet 3- high-pressure injection passages
4- low pressure oiling passage 5- the first groove the second grooves of 6-.
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 base
In orientation shown in the drawings or position relationship, description description of the invention and simplified, rather than instruction or hint are for only for ease of
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of 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, because gap is smaller between the pump case inner peripheral surface and outer rotor of impeller pump, in the running not
Lubricating oil film is easily established, so be prone to wear out, in addition, the course of work of analysis impeller pump, between internal rotor and outer rotor mutually
Engagement forms closed cavity volume, and volume change can occur with the rotation of internal rotor and outer rotor for this closed cavity volume
Change, when cavity volume moves oil inlet side, i.e., the oil suction at oil inlet, when cavity volume moves to oil discharge outlet side, pressed
The oil liquid pressure of contracting is acted on outer rotor and internal rotor simultaneously, according to basic force analysis, outer rotor can only by with pump
Shell contact could produce one conversely can offset the active force, this will certainly cause insufficient lubrication between outer rotor and pump case,
Ultimately result in the generation of eccentric wear phenomenon.
Based on above-mentioned technical problem, Fig. 2 shows a kind of pump case that can greatly reduce impeller pump eccentric wear, and it includes oil-feed
Mouthful 1, oil discharge outlet 2 and the rotor chamber in pump case, the rotor chamber side wall note to the side of oil discharge outlet 2 is additionally provided with the pump case
The high-pressure injection passage 3 of oil, the entrance of the high-pressure injection passage 3 communicate with oil discharge outlet 2.
In view of whole outer rotor and the needs of pump case inner peripheral surface lubrication, also in pump case, there is provided low pressure oiling to lead to by inventor
Road, the entrance connection oil inlet of low pressure oiling passage.
Need to illustrate when, those skilled in the art it should be appreciated that the setting of the high-pressure injection passage 3 can have it is more
Kind mode, such as preset in pump case by way of casting, naturally it is also possible to it is real by way of being slotted on the surface of pump case
It is existing, and it is particularly critical, and the setting of the outlet of the high-pressure injection passage 3 is necessarily placed at close to the oil extraction side of oil discharge outlet 2, right
In oil extraction side, background technology is it is stated that using the circle center line connecting of the internal rotor of impeller pump and outer rotor as cut-off rule, close to oil extraction
The side of mouth is oil extraction side, and the side close to oil inlet 1 is oil-feed side.
As high-pressure injection passage and a kind of arrangement of low pressure oiling passage, as shown in Fig. 2 inventor will state high pressure
The outlet of oiling passage 3 and low pressure oiling passage 4 is located in rotor chamber side wall.
As high-pressure injection passage 3 and another arrangement of low pressure oiling passage 4, as shown in figure 3, inventor is inciting somebody to action
The outlet of high-pressure injection passage 3 and low pressure oiling passage 4 is arranged on pump case bottom close to the position of rotor chamber side wall.
As preferable, arc as shown in Figure 4 can also be set in the pump case bottom of oil extraction side and oil-feed side respectively
Oil storage tank, high-pressure injection passage 3 is opened in the oil storage tank of oil extraction side, low pressure oiling passage 4 is opened in the storage of oil-feed side
In oil groove.
To be more prone to the foundation of oil film, as shown in figure 5, inventor is further additionally provided with the rotor chamber side wall
Some the first axial arranged grooves 5, first groove 5 can store a small amount of fluid.
The present invention's also provides a kind of impeller pump for being not easy eccentric wear, and the impeller pump includes any one foregoing pump case.
As the alternative that the first groove 5 is opened up in rotor chamber side wall, inventor is further contemplated in the impeller pump
Outer rotor on outer peripheral face on some the second axial arranged grooves 6 are set, relative to the first groove 5, the second groove 6 makes
More superior with effect, the outer rotor of the impeller pump in work rotates at a high speed, and the fluid that can be stored in the second groove 6 produces
A raw centrifugal force, fluid is thrown to rotor chamber inner peripheral surface in the presence of the centrifugal force, and this just establishes lubricating oil naturally
Film.
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 (7)
1. a kind of impeller pump pump case, including oil inlet（1）, oil discharge outlet（2）And the rotor chamber in pump case, its feature exist
In：It is additionally provided with the pump case to oil discharge outlet（2）The high-pressure injection passage of the rotor chamber side wall oiling of side（3）, the high pressure
Oiling passage（3）Entrance and oil discharge outlet（2）Or oil-discharging cavity communicates.
2. impeller pump pump case according to claim 1, it is characterised in that：It is additionally provided with the pump case to oil inlet（1）One
The low pressure oiling passage of the rotor chamber side wall oiling of side（4）, the low pressure oiling passage（4）Entrance and oil inlet（1）Communicate.
3. impeller pump pump case according to claim 2, it is characterised in that：The high-pressure injection passage（3）With low pressure oiling
Passage（4）Outlet be located in rotor chamber side wall.
4. impeller pump pump case according to claim 2, it is characterised in that：The high-pressure injection passage（3）With low pressure oiling
Passage（4）Outlet positioned at pump case bottom close to the position of rotor chamber side wall.
5. impeller pump pump case according to claim 2, it is characterised in that：The rotor chamber side wall is provided with some longitudinal cloth
The first groove put（5）.
A kind of 6. impeller pump for being not easy eccentric wear, it is characterised in that：The impeller pump includes any one described in claim 1-5
Pump case.
7. the impeller pump according to claim 5 for being not easy eccentric wear, it is characterised in that：On outer rotor in the impeller pump
Outer peripheral face is provided with some the second axial arranged grooves（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710809023.0A CN107435629A (en) | 2017-09-09 | 2017-09-09 | A kind of impeller pump pump case and impeller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710809023.0A CN107435629A (en) | 2017-09-09 | 2017-09-09 | A kind of impeller pump pump case and impeller pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107435629A true CN107435629A (en) | 2017-12-05 |
Family
ID=60461791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710809023.0A Pending CN107435629A (en) | 2017-09-09 | 2017-09-09 | A kind of impeller pump pump case and impeller pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107435629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812684A (en) * | 2019-04-08 | 2019-05-28 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump directly driven by engine crankshaft |
| CN110159527A (en) * | 2018-02-13 | 2019-08-23 | 通用汽车环球科技运作有限责任公司 | Lubrication strategies for dry-running pumping system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620788A (en) * | 1979-07-26 | 1981-02-26 | Minoru Fujita | Variable capacity type trochoid pump motor |
| JPS63246482A (en) * | 1987-04-01 | 1988-10-13 | Honda Motor Co Ltd | Oil pump |
| JP2001263263A (en) * | 2000-03-22 | 2001-09-26 | Toyoda Mach Works Ltd | Internal gear pump device |
| CN102678541A (en) * | 2012-05-25 | 2012-09-19 | 山东鑫亚工业股份有限公司 | Fuel delivery pump with floated cycloid rotor |
| CN104343679A (en) * | 2013-07-30 | 2015-02-11 | 株式会社山田制作所 | Internal gear oil pump |
| CN105041637A (en) * | 2015-06-26 | 2015-11-11 | 湘潭大学 | Variable-displacement cycloid rotor pump |
-
2017
- 2017-09-09 CN CN201710809023.0A patent/CN107435629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620788A (en) * | 1979-07-26 | 1981-02-26 | Minoru Fujita | Variable capacity type trochoid pump motor |
| JPS63246482A (en) * | 1987-04-01 | 1988-10-13 | Honda Motor Co Ltd | Oil pump |
| JP2001263263A (en) * | 2000-03-22 | 2001-09-26 | Toyoda Mach Works Ltd | Internal gear pump device |
| CN102678541A (en) * | 2012-05-25 | 2012-09-19 | 山东鑫亚工业股份有限公司 | Fuel delivery pump with floated cycloid rotor |
| CN104343679A (en) * | 2013-07-30 | 2015-02-11 | 株式会社山田制作所 | Internal gear oil pump |
| CN105041637A (en) * | 2015-06-26 | 2015-11-11 | 湘潭大学 | Variable-displacement cycloid rotor pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159527A (en) * | 2018-02-13 | 2019-08-23 | 通用汽车环球科技运作有限责任公司 | Lubrication strategies for dry-running pumping system |
| CN109812684A (en) * | 2019-04-08 | 2019-05-28 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump directly driven by engine crankshaft |
| CN109812684B (en) * | 2019-04-08 | 2024-02-02 | 湖南机油泵股份有限公司 | Rotor type oil pump directly driven by engine crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171205 |
|
| RJ01 | Rejection of invention patent application after publication |