CN110529425A - A kind of lubrication system for high revolving speed centrifugal pump - Google Patents
A kind of lubrication system for high revolving speed centrifugal pump Download PDFInfo
- Publication number
- CN110529425A CN110529425A CN201910762062.9A CN201910762062A CN110529425A CN 110529425 A CN110529425 A CN 110529425A CN 201910762062 A CN201910762062 A CN 201910762062A CN 110529425 A CN110529425 A CN 110529425A
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- CN
- China
- Prior art keywords
- oil
- centrifugal pump
- lubrication system
- revolving speed
- transmission 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the high revolving speed low-pressure fuel pump technical field of mechanical transmission of aircraft engine fuel oil system, it is related to a kind of lubrication system for high revolving speed centrifugal pump, applied to aircraft engine fuel oil system, in-line is formed by oil inlet (1), flow nipple (2), oil inlet passage (3)；Lubrication channel is formed by lubrication bearing (6), bearing (9) and mistake oil groove (7), lubricates the axis and bearing to run at high speed；An other oil circuit is formed by fuel feed hole (12), oil inlet passage hole (14), the interior external splines of transmission shaft (13) and impeller shaft (8) is lubricated.The structure design concept is ingenious, Yi Shixian, not only guarantees that the transmission parts to run at high speed lubricate, but also save main screw lift and space.
Description
Technical field
The invention belongs to aero-engine technology fields, are related to the high revolving speed low-pressure fuel pump machine driving skill of fuel system
Art is related to a kind of lubrication system for high revolving speed centrifugal pump, and in particular to a kind of pair of high revolving speed of aircraft engine fuel oil system
The structure that the rotatable parts of centrifugal pump are lubricated.
Background technique
In high-revolving centrifugal pump structure, for the abrasion for reducing the axis and spring bearing that run at high speed, often need to introduce
Lubricating oil is lubricated it.The common fuel system of centrifugal pump sliding bearing has interrupted oil supply lubrication and continuous oil supply lubrication two
Kind.
The traditional lubrication system of centrifugal pump is that bearing is fixed in bearing housing, bearing lubrication be using external permanent position lubricating cup into
Row lubrication, because being required by installation space, weight, volume etc., what such structure was not able to satisfy that aero-engine centrifugal pump uses is wanted
It asks, centrifugal pump guarantees that its high speed runs well again, how to be lubricated especially to bearing while realizing its function of increasing pressure
It is important.
Therefore, on the basis of guaranteeing transmission parts includes spring bearing and splined driveshaft lubrication, a kind of structure is proposed
Simply, the lubrication system suitable for the high revolving speed centrifugal pump of Aviation Fuel system.
Summary of the invention
The purpose of the present invention is: it is insufficient in order to solve the above-mentioned prior art, provide that a kind of structure is simple, small in size, design
Reasonable centrifugal pump lubrication system, to guarantee the lubrication of centrifugal pump transmission parts.
To solve this technical problem, the technical scheme is that
A kind of lubrication system for high revolving speed centrifugal pump, when the transmission shaft 13 of centrifugal pump and impeller shaft 8 are integrated, profit
Slipped Clove Hitch structure includes oil inlet passage 3, lubricates mistake oil groove 7 on bearing 6, crosses oil groove 7 and oil discharge passage 11 on bearing 9；Oil inlet passage 3
With oil inlet 1, oil inlet 1 is arranged on the housing 10.
When the 8 fission design of the transmission shaft 13 of centrifugal pump and impeller shaft, lubrication system further include: be connected to the transmission shaft 13
With the lubricant passage way of impeller shaft 8, the lubricant passage way includes being provided with the second oil inlet passage 14 of inside of transmission shaft 13 and fuel-displaced logical
Road 11, the second oil inlet passage 14 have lubricating oil fuel feed hole 12；Second oil inlet passage 14 is by designing the through-hole inside transmission shaft 13
It constitutes.
The flow nipple 2 of 3 inlet of the oil inlet passage setting installation on the housing 10.
Oil inlet passage 3 opens up on the housing 10, is located between lubrication bearing 6 and mechanical seal 5.
Preferably, the shape of through holes inside transmission shaft 13 is circle.
Preferably, crossing 7 cross sectional shape of oil groove is semicircle or " V " shape.
Preferably, the transmission shaft 13 is connected with when 8 fission design of impeller shaft by interior external splines.
The pore size of the flow nipple 2 is according to cunning fuel volume adjusting required inside lubrication system.
The pore size of the fuel feed hole 12 cunning fuel volume adjusting according to needed for 13 spline of transmission shaft.
The beneficial effects of the present invention are:
Centrifugal pump lubrication system of the invention dexterously introduces one cunning from motor oil case using centrifugal pump casing
Oil is arranged flow nipple in oil inlet, had not only guaranteed sufficient lubrication but also guaranteed engine under the premise of considering oil lubrication flow
Lubricating oil reasonable distribution.Lubricating oil, which enters after shell, to be passed through oil groove and was lubricated to lubrication bearing and bearing, and interiors of products is provided with
Mechanical seal guarantees that lubricating oil is not revealed.Transmission shaft, which is connected on the spline of position with accessory drive gearbox, opens aperture, by the lubricating oil of lubricating cavity
It is introduced at transmission shaft other end spline by splined shaft internal holes, internal splines is lubricated.The present invention omits complexity
Lube pipe, but the mode for the part fluting and aperture setting channel that need to be lubricated by means of each realizes entire driving section
The lubrication of part, structure is relatively easy, manufacture easy to process.
Detailed description of the invention
It, below will be to be used to being needed in example of the invention in order to illustrate more clearly of the technical solution that the present invention is implemented
Attached drawing makees simple explain.It is clear that drawings described below is only some embodiments of the present invention, for this field
Technical staff for, without creative efforts, be also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of centrifugal pump lubrication system schematic diagram, specially transmission shaft and impeller shaft fission design drawing；
Fig. 2 is that another kind is centrifugal pump lubrication system schematic diagram, specially transmission shaft and impeller shaft integrated design figure；
Fig. 3 is centrifugation pump lubrication bearing arrangement schematic diagram；
In figure: 1- oil inlet；2- flow nipple；3- oil inlet passage；4- sealing axle sleeve；5- mechanical seal；6- lubricates bearing；
7- crosses oil groove；8- impeller shaft；9- bearing；10- shell；11- oil discharge passage；12- fuel feed hole；13- transmission shaft；14- oil inlet passage
Hole；15- lubricating cavity；16- sealing ring；17- sealing ring.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiments of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, the ordinary skill people of this field
Without making creative work, every other embodiment obtained shall fall within the protection scope of the present invention member.
The feature of the various aspects of the embodiment of the present invention is described more fully below.In the following detailed description, it proposes
Many concrete details, so as to complete understanding of the present invention.But for those of ordinary skill in the art, very bright
Aobvious, the present invention can also be implemented in the case where not needing these details.Below to the description of embodiment
Just for the sake of being better understood by showing example of the invention to the present invention.The present invention is not limited to presented below any
Specific setting and method, but cover all product structures covered without departing from the spirit of the invention, method
Any improvement, replacement etc..
In each attached drawing and following description, well known structure and technology is not shown, is caused to avoid to the present invention
It is unnecessary fuzzy.
The specific embodiment of the invention is a kind of lubrication system for the high revolving speed centrifugal pump of aircraft engine fuel oil system, packet
Include the lubricant passage way opened up on the lubricant passage way and transmission shaft being provided on centrifugal pump casing.The lubricant passage way includes centrifugation
The oil inlet access and fuel-displaced access crossing oil groove and cavity and be connected of pump internal bearings.
Centrifugal pump complete machine includes flow passage components, seal member and transmission parts, and the design of this lubrication system is to transmission parts
Lubrication is provided.At lubrication bearing top circle, lubrication bearing is mounted in impeller shaft for the entrance setting of lubrication passages, and lubrication bearing is right
The sealing of side make-up machinery, is used for sealing lubricating-oil.It is fixed on the left of lubrication bearing by transmission bracket, bearing, disk spring support
In shell mounting groove, bearing is without axial movement.Impeller shaft is connect with transmission shaft by internal spline.
If Fig. 1 is transmission shaft (13) and the seperated design of impeller shaft (8), lubrication system includes flow nipple, oil pathway, sealing
The lubricant passage way of lubricant passage way 1 and transmission shaft itself with oil circuit that axle sleeve, mechanical seal, lubrication bearing, impeller shaft, bearing form
2 compositions.
If Fig. 2 is transmission shaft (13) and impeller shaft (8) integrated design, lubrication system includes flow nipple, oil pathway, sealing
The lubricant passage way 1 that axle sleeve, mechanical seal, lubrication bearing, transmission shaft, bearing form.
As shown in Figure 1, lubrication system includes two parts: a part is the flow nipple 2 installed on the housing 10 and opens up
Lubricant passage way, the lubricant passage way include crossing oil groove 7 and 9 upper half circle of bearing crosses 7 cavity of oil groove with lubrication 6 upper half circle of bearing
The oil inlet passage 3 and oil discharge passage 11 being connected, oil inlet passage 3 have oil inlet 1 and a flow nipple 2, oil inlet passage 3 and fuel-displaced logical
The lubricating oil into lubrication bearing 6 and bearing 9 is each filled in road 11；Another part is in transmission shaft 13 is connected with impeller shaft 8
The lubricant passage way of external splines, the lubricant passage way include being provided with oil inlet passage hole 14 and oil discharge passage 11, oil inlet inside transmission shaft
Channel has fuel feed hole 12, is full of and enters in 13 external splines of transmission shaft and impeller shaft 8 in oil inlet passage hole 14 and oil discharge passage 11
Spline matches the lubricating oil at position.
6 structure of bearing is lubricated as shown in figure 3, the semicircle of R0.9~R1 crosses oil groove at the Kong Youyi cooperated with impeller shaft 8
7, both sides of the face respectively have the semicircle of a R0.9~R1 to cross oil groove 7.The inner hole of bearing 9 has the semicircle mistake of R0.9~R1 at one
Oil groove 7.
When work, 10 lubricating oil of shell is entered by oil inlet 1 by the lubricating oil that driving engine casing introduces certain pressure
Channel 3, lubricating oil flows into the end face of sealing axle sleeve 4 and the oil groove 7 excessively of lubrication bearing 6 along channel under pressure, right respectively
The axis of lubrication 6 inner hole of bearing, both sides of the face and impeller shaft 8 is lubricated, and lubricating oil is by crossing oil groove 7 in shell on lubrication bearing 6
10 intracavitary flowings reach 9 inner hole of bearing, are lubricated to the axis of the impeller shaft 8 of 9 inner hole of bearing and cooperation, lubricating oil passes through later
Oil discharge passage 11 is flowed into engine accessory power rating casing lubricating cavity 15, completes a bearing lubrication process.Lubricating oil in accessory drive gearbox
The lubricating oil got is pumped to be ejected on 13 external splines of transmission shaft with certain pressure, 13 external splines middle position of transmission shaft open up lubricating oil into
Oilhole 12, lubricating oil is flowed into 13 inside oil inlet passage hole 14 of transmission shaft along aperture, and then further lubricating transmission axis is another
Hold the internal spline of the impeller shaft 8 of spline and its cooperation.
It further include mechanical seal 5 for sealing lubricating-oil, sealing ring 16 to prevent oil leak, in above-mentioned lubrication system
With sealing ring 17.
Finally it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, but protection of the invention
Range is not limited thereto, and anyone skilled in the art in the technical scope disclosed by the present invention, can be thought easily
It is modified or replaceed to various equivalent, these, which are modified or replaceed, should all be included within the scope of the present invention.
Claims (9)
1. a kind of lubrication system for high revolving speed centrifugal pump, it is characterised in that: when the transmission shaft (13) and impeller shaft of centrifugal pump
(8) when being integrated, the lubrication system include oil inlet passage (3), in lubrication bearing (6) oil groove (7), excessively oily on bearing (9)
Slot (7) and oil discharge passage (11)；Oil inlet passage (3) has oil inlet (1), and oil inlet (1) is arranged on shell (10).
2. the lubrication system according to claim 1 for high revolving speed centrifugal pump, it is characterised in that: when transmission shaft (13) and
When impeller shaft (8) fission design, the lubrication system further include: be connected to the lubricating oil of the transmission shaft (13) and impeller shaft (8)
Road, the lubricant passage way include being provided with internal second oil inlet passage (14) of transmission shaft (13) and oil discharge passage (11), second into
Oily channel (14) has lubricating oil fuel feed hole (12)；Second oil inlet passage (14) is by designing the through-hole structure internal in transmission shaft (13)
At.
3. the lubrication system according to claim 1 or 2 for high revolving speed centrifugal pump, it is characterised in that: the oil inlet is logical
The flow nipple (2) being mounted on shell (10) is arranged in road (3) inlet.
4. the lubrication system according to claim 1 or 2 for high revolving speed centrifugal pump, it is characterised in that: the oil inlet is logical
Road (3) is provided on shell (10), is located between lubrication bearing (6) and mechanical seal (5).
5. the lubrication system according to claim 2 for high revolving speed centrifugal pump, it is characterised in that: the transmission shaft (13)
Internal shape of through holes is circle.
6. the lubrication system according to claim 1 or 2 for high revolving speed centrifugal pump, it is characterised in that: described to cross oil groove
(7) cross sectional shape is semicircle or " V " shape.
7. the lubrication system according to claim 2 for high revolving speed centrifugal pump, it is characterised in that: the transmission shaft (13)
It is connected with impeller shaft (8) by interior external splines.
8. the lubrication system according to claim 1 or 2 for high revolving speed centrifugal pump, it is characterised in that: the flow nipple
(2) pore size is according to cunning fuel volume adjusting required inside lubrication system.
9. the lubrication system according to claim 2 for high revolving speed centrifugal pump, it is characterised in that: the fuel feed hole (12)
Pore size cunning fuel volume adjusting according to needed for transmission shaft (13) spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910762062.9A CN110529425A (en) | 2019-08-16 | 2019-08-16 | A kind of lubrication system for high revolving speed centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910762062.9A CN110529425A (en) | 2019-08-16 | 2019-08-16 | A kind of lubrication system for high revolving speed centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529425A true CN110529425A (en) | 2019-12-03 |
Family
ID=68663615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910762062.9A Pending CN110529425A (en) | 2019-08-16 | 2019-08-16 | A kind of lubrication system for high revolving speed centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110529425A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472983A (en) * | 2020-04-29 | 2020-07-31 | 贵州库玛信息技术有限公司 | Environment-friendly energy-saving equipment for conveying solid particle slurry |
| CN112049923A (en) * | 2020-09-07 | 2020-12-08 | 中国航发贵阳发动机设计研究所 | Lubricating structure with lubricating oil distribution function |
| WO2022048364A1 (en) * | 2020-09-03 | 2022-03-10 | 安徽威灵汽车部件有限公司 | Pump device and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312928A (en) * | 2011-08-24 | 2012-01-11 | 重庆齿轮箱有限责任公司 | Spline lubricating structure |
| WO2016024518A1 (en) * | 2014-08-15 | 2016-02-18 | 株式会社Ihi | Turbo pump |
| CN108019430A (en) * | 2016-11-04 | 2018-05-11 | 财团法人工业技术研究院 | Fluid machinery lubricating system assembly |
| CN110005545A (en) * | 2019-02-21 | 2019-07-12 | 西安航天动力研究所 | A kind of mouse cage elastically yielding bearing cavity configuration |
-
2019
- 2019-08-16 CN CN201910762062.9A patent/CN110529425A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312928A (en) * | 2011-08-24 | 2012-01-11 | 重庆齿轮箱有限责任公司 | Spline lubricating structure |
| WO2016024518A1 (en) * | 2014-08-15 | 2016-02-18 | 株式会社Ihi | Turbo pump |
| CN108019430A (en) * | 2016-11-04 | 2018-05-11 | 财团法人工业技术研究院 | Fluid machinery lubricating system assembly |
| CN110005545A (en) * | 2019-02-21 | 2019-07-12 | 西安航天动力研究所 | A kind of mouse cage elastically yielding bearing cavity configuration |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472983A (en) * | 2020-04-29 | 2020-07-31 | 贵州库玛信息技术有限公司 | Environment-friendly energy-saving equipment for conveying solid particle slurry |
| CN111472983B (en) * | 2020-04-29 | 2021-11-16 | 合肥华升泵阀股份有限公司 | Environment-friendly energy-saving equipment for conveying solid particle slurry |
| WO2022048364A1 (en) * | 2020-09-03 | 2022-03-10 | 安徽威灵汽车部件有限公司 | Pump device and vehicle |
| CN112049923A (en) * | 2020-09-07 | 2020-12-08 | 中国航发贵阳发动机设计研究所 | Lubricating structure with lubricating oil distribution function |
| CN112049923B (en) * | 2020-09-07 | 2022-11-25 | 中国航发贵阳发动机设计研究所 | Lubricating structure with lubricating oil distribution function |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20191203 |