CN106014642A - Cooling and lubricating device of turbojet engine bearing system - Google Patents
Cooling and lubricating device of turbojet engine bearing system Download PDFInfo
- Publication number
- CN106014642A CN106014642A CN201610531801.XA CN201610531801A CN106014642A CN 106014642 A CN106014642 A CN 106014642A CN 201610531801 A CN201610531801 A CN 201610531801A CN 106014642 A CN106014642 A CN 106014642A
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- Prior art keywords
- oil
- hole
- block body
- bearing block
- bearing
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to the technical field of engine bearing lubricating devices, in particular to a cooling and lubricating device of a turbojet engine bearing system. The cooling and lubricating device comprises an oil inlet pipe, an oil distributing seat, a bearing pedestal body, an oil conveying pipe, an oil storage cavity, an oil outlet pipe, an oil distributing pipe and oil injection needles. The end face of the oil distributing seat is matched with the end face of the bearing pedestal body, and the oil distributing seat is provided with an oil inlet end and an oil outlet end. The oil inlet end is provided with an oil inlet and three oil passing holes, the oil inlet communicates with the oil inlet pipe, and a lubricating oil hole communicates with a bearing mounting hole. The oil passing holes are connected with an oil inlet of the oil conveying pipe, and an oil outlet hole of the oil conveying pipe communicates with an oil passing hole of the bearing pedestal body. The oil passing hole communicates with the oil storage cavity of the bearing pedestal body, the oil storage cavity is provided with an oil outlet, and the oil outlet communicates with an inlet of the oil outlet pipe. The oil injection needles are arranged on the oil distributing pipe. The bearing system is cooled and lubricated through fuel oil, and no oil tank or oil supply system needs to be independently arranged, so that mounting space is saved, and the structure is simplified.
Description
Technical field
The present invention relates to engine shaft bearing lubricating device technical field, particularly relate to a kind of turbojet engine bearing
The cooling and lubricating device of system.
Background technology
Micro Turbine Jet Engine is the power set of a kind of high-energy-density, as the crucial skill of minute vehicle
One of art, is at home and abroad obtained for and payes attention to widely and development energetically.In recent years, minute vehicle exists
Military and civilian aspect has broad application prospects, and the most day by day causes the concern of people.Military aspect,
Minute vehicle is used for carrying out low latitude military surveillance, supervision, battlefield damage assessment etc.；And at civilian aspect,
Minute vehicle can be also used for traffic monitoring, border patrol, forest and wild animals and plants exploration, aviation is taken the photograph
Shadow, transmission line of electricity inspection, environment measuring, weather monitoring, forest fire protection monitoring etc..Micro Turbine Jet Engine
Use rolling bearing be operated under high temperature, high-speed condition, especially turbine end bearing operating temperatures up to 600K,
Under high temperature, high contact stress effect, it is susceptible to raceway shallow-layer metal fatigue come off or the form such as ablation of metals
Damage, traditional turbojet engine is not equipped with special cooling system, and electromotor work is stablized by this
Property produce great adverse effect, it addition, turbojet engine work time, a lot of driving parts are all the least
Gap under do high speed relative motion, although the working surface of these parts is all through fine processing, but put
From the point of view of greatly, these surfaces are but rough, if not being lubricated these surfaces, will occur between them
Strong dry friction, and the dry friction between metal surface not only increases the power consumption of electromotor, accelerates zero
The abrasion of part working surface, but also be likely to be due to fricative heat and part time job surface is burnt out, cause
Electromotor cannot work.The function of lubricating system be exactly when electromotor works continuously quantity enough,
The clean lubricating oil that temperature is suitable is transported to the friction surface of whole driving member, and is formed between friction surface
Oil film, it is achieved fluid friction, thus reduce frictional resistance, reduce power consumption, alleviate component wear, with
Reach to improve electromotor functional reliability and the purpose of durability.Traditional turbojet engine bearing lubrication is most
Number is to be used in the special lubricating system of the outside adapted one of turbojet engine or grease-box, so that traditional
The lubrication of turbojet engine bearing is guaranteed, this structure, makes turbojet engine machine volume increase, makes
With extremely inconvenience.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the existing outside adapted one at turbojet engine
Special lubricating system or grease-box are lubricated, and cause turbojet engine machine volume to increase, and use not
Just problem, the present invention provides the cooling and lubricating device of a kind of turbojet engine bearing arrangement, utilizes fuel oil pair
The bearing arrangement of turbojet engine is lubricated and cools down.
The technical solution adopted for the present invention to solve the technical problems is: a kind of turbojet engine bearing arrangement
Cooling and lubricating device, including oil inlet pipe, point font, bearing block body, petroleum pipeline, oil storage chamber, flowline,
Oil distributing pipe, fuel injection needle, the end face of point font coordinates with the end face of bearing block body, and a point font is provided with oil inlet end
And oil outlet end, oil inlet end is provided with oil-through hole 2b, 2c, 2d at oil-in 2a and three, oil-in 2a and the most oily
Hole 2b is through, and oil-in 2a connects with oil inlet pipe, the oil-in 2a of point font and the lubrication of bearing block body
Oilhole 3a connects, and this oilhole 3a connects with bearing mounting hole, at another of the oil inlet end of point font
Oilhole 2b connects with the oil-through hole 3b of bearing block body, and this oil-through hole 3b connects with the fuel feed hole 4a of petroleum pipeline
Connecing, the oil outlet 4b of petroleum pipeline connects with the oil-through hole 3c of bearing block body, this oil-through hole 3c be arranged at
The oil storage chamber connection of bearing block body, oil storage chamber is provided with oil-out 3d at, oil-out 3d and enters with flowline
Mouthful 7a connection, the outlet 7b of flowline connects with the oil-through hole 3e on bearing block body, oil-through hole 3e and
The oil-through hole 2c connection of oil outlet end on point font, oil-through hole 2c is through with oil-through hole 2d, oil-through hole 2d and
Oil distributing pipe connects, and oil distributing pipe is provided with fuel injection needle.
Further, it is provided with eight fuel injection needles including oil distributing pipe.
Further, it is provided with axle sleeve including bearing block body periphery, and bearing block body and axle sleeve cooperatively form
Cavity is oil storage chamber.
Further, the material including bearing block body is aluminium alloy.
Further, the material including axle sleeve is 42CrMo.
Further, it is interference fit including bearing block body and axle sleeve.
Further, connect by screw is fixing including point font and bearing block body.
The invention has the beneficial effects as follows,
(1) by chiller, bearing arrangement is cooled down, reduces the operating temperature of turbine end bearing,
Improve stability and the reliability of electromotor work；
(2) utilize this cooling system bearing to be lubricated simultaneously, improve bearing working motility and
Life-span；
(3) fuel oil is utilized to realize the cooling and lubricating to bearing arrangement, it is not necessary to individually to set up fuel tank and fuel feeding system
System, saves installing space, simplifies structure.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the profile of the present invention.
Fig. 3 is the exploded view of the present invention.
Fig. 4 is bearing block main body and the assembling figure of axle sleeve of the present invention.
Fig. 5 is the left side partial enlarged drawing of the profile of the present invention.
Fig. 6 is the right side partial enlarged drawing of the profile of the present invention.
In figure 1, oil inlet pipe, 2, point font, 3, bearing block body, 4, petroleum pipeline, 5, oil storage chamber, 6,
Axle sleeve, 7, flowline, 8, oil distributing pipe, 9, fuel injection needle.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification,
The basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
As shown in Fig. 1,2,3,4,5,6, the cooling and lubricating of the present invention a kind of turbojet engine bearing arrangement
Device, including oil inlet pipe 1, point font 2, bearing block body 3, petroleum pipeline 4, oil storage chamber 5, flowline 7,
Oil distributing pipe 8, fuel injection needle 9, the end face of described point of font 2 coordinates with the end face of bearing block body 3, described point
Font 2 is provided with oil inlet end and oil outlet end, and oil inlet end is provided with oil-through hole 2b, 2c, 2d at oil-in 2a and three,
Oil-in 2a and oil-through hole 2b is through, and oil-in 2a connects with oil inlet pipe 1, the oil-feed of described point of font 2
Hole 2a connects with the oilhole 3a of bearing block body 3, and this oilhole 3a connects with bearing mounting hole,
The oil-in 2a of described point of font 2 connects with the oil-through hole 3b being arranged at bearing block body 3, this oil-through hole
3b is connected with the fuel feed hole 4a of petroleum pipeline 4, and the oil outlet 4b of petroleum pipeline 4 is the most oily with bearing block body 3
Hole 3c connects, and this oil-through hole 3c connects with the oil storage chamber 5 of bearing block body 3, and described oil storage chamber 5 is provided with
Oil-out 3d at one, oil-out 3d connect with the entrance 7a of flowline 7, the outlet 7b of flowline 7 and axle
Oil-through hole 3e connection on bearing body 3, oil-through hole 3e and the oil-through hole 2c of oil outlet end on point font 2 is even
Logical, oil-through hole 2c is through with oil-through hole 2d, and oil-through hole 2d connects with oil distributing pipe 8, on described oil distributing pipe 8
Being provided with eight fuel injection needles 9, bearing block body 3 inner chamber is provided with axle sleeve 6, and bearing block body 3 and axle sleeve 6 are joined
Closing formation cavity and be oil storage chamber 5, the material of bearing block body 3 is aluminium alloy, and the material of axle sleeve 6 is
42CrMo, bearing block body 3 and axle sleeve 6 are interference fit.Font 2 and bearing block body 3 is divided to pass through spiral shell
Nail is fixing to be connected.
Dividing font 2 to include oilhole 2a, 2b, 2c, 2d, oilhole 2a with 2b is through, 2c with 2d is through,
Bearing block body 3 includes that oilhole 3a, 3b, 3c, 3d, 3e, oil inlet pipe 1 connect with oilhole 2a, oilhole
2a connects with oilhole 3a, and oilhole 3a connects with the bearing mounting hole of bearing block body 3, oilhole 2a and oilhole
2b is through, and oilhole 2b connects with oilhole 3b, and oilhole 3b connects with petroleum pipeline 4 one end 4a, petroleum pipeline 4
Other end 4b connects with oilhole 3c, and oilhole 3c connects with oil storage chamber 5, and oil storage chamber 5 is provided with outlet 3d, oil
Hole 3d connects with one end 7a of flowline 7, and the other end 7b of flowline 7 connects with oilhole 3e, oilhole
3e connects with oilhole 2c, and oilhole 2c is through with oilhole 2d, and oilhole 2d connects with oil distributing pipe 8, oil distributing pipe
8 are provided with fuel injection needle 9 at eight.Fuel oil passes through oil inlet pipe 1, flows through oilhole 2a, 3a, reaches bearing arrangement,
Bearing arrangement is lubricated；Fuel oil pass through oil inlet pipe 1, flow through oilhole 2a, 2b, 3b, oil connection 4a,
Petroleum pipeline 4, oil connection 4b, oilhole 3c, oil storage chamber 5, oilhole 3d, oil connection 7a, flowline 7,
Oil connection 7b, oilhole 3e, oilhole 2c, oilhole 2d, oil distributing pipe 8, reaching fuel injection needle 9, fuel oil is through spray
Spindle 9 is sprayed onto in evaporation tube and burns, and utilizes the fuel oil of room temperature, flows through the outside of bearing arrangement, and right
Bearing arrangement cools down, and fuel oil finally arrives combustor, burns, it is not necessary to design individually cooling,
Lubricating system, cost-effective, improve equipment work efficiency.
As it is shown on figure 3, it is at 6 that a point font 2 is provided with endoporus 2f, end face 2e, unthreaded hole 2g, unthreaded hole 2g,
Relative circumferential is uniform, and bearing block body is provided with step 3g, end face 3h, screwed hole 3f, and screwed hole is at 6,
Relative circumferential is uniform, straight than bearing block body 3 upper screwed hole 3f of the diameter of the unthreaded hole 2g on point font 2
The big 0.5mm in footpath, the endoporus 2f on point font 2 coordinate with the step 3g on bearing block body 3, point font 2
On end face 2e and bearing block body 3 on end face 3h laminating, a point font 2 passes through with bearing block body 3
Screw connects, and screw is by the unthreaded hole 2g on point font 2, screw thread and the screwed hole 3f on bearing block body 3
Connect.As shown in Figure 4, bearing block body 3 is provided with hole 3k, 3m, end face 3j, and axle sleeve 6 is provided with platform
Rank 6a, 6c, end face 6b, the hole 3k on bearing block body 3 coordinate with the step 6a on axle sleeve 6, bearing
Hole 3m on seat body 3 coordinates with the step 6c on axle sleeve 6, the end face 3j on bearing block body 3 and axle
End face 6b laminating on set 6, completes assembling.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, related work
Personnel can carry out various change and amendment completely in the range of without departing from this invention technological thought.
The content that the technical scope of this invention is not limited in description, it is necessary to according to right
Determine its technical scope.
Claims (7)
1. a cooling and lubricating device for turbojet engine bearing arrangement, is characterized in that, including oil inlet pipe (1),
Point font (2), bearing block body (3), petroleum pipeline (4), oil storage chamber (5), flowline (7),
The end of oil distributing pipe (8), fuel injection needle (9), the end face of described point of font (2) and bearing block body (3)
Face coordinates, and described point of font (2) is provided with oil inlet end and oil outlet end, and oil inlet end is provided with at oil-in 2a and three
Oil-through hole 2b, 2c, 2d, oil-in 2a and oil-through hole 2b are through, and oil-in 2a is with oil inlet pipe (1) even
Logical, the oil-in 2a of described point of font (2) connects with the oilhole 3a of bearing block body (3), should
Oilhole 3a connects with the bearing mounting hole being arranged at bearing block body (3), described point of font (2)
At another of oil inlet end, oil-through hole 2b and the oil-through hole 3b being arranged at bearing block body (3) connects, and this is the most oily
Hole 3b is connected with the fuel feed hole 4a of petroleum pipeline (4), the oil outlet 4b of petroleum pipeline (4) and bearing block body
(3) oil-through hole 3c connection, this oil-through hole 3c and the oil storage chamber (5) being arranged at bearing block body (3)
Connection, described oil storage chamber (5) is provided with the entrance of oil-out 3d at, oil-out 3d and flowline (7)
7a connects, and the outlet 7b of flowline (7) connects with the oil-through hole 3e on bearing block body (3), the most oily
The oil-through hole 2c of hole 3e oil outlet end upper with point font (2) connects, and oil-through hole 2c is through with oil-through hole 2d,
Oil-through hole 2d connects with oil distributing pipe (8), and described oil distributing pipe (8) is provided with fuel injection needle (9).
The cooling and lubricating device of a kind of turbojet engine bearing arrangement the most according to claim 1, it is special
Levying and be, described oil distributing pipe (8) is provided with eight fuel injection needles (9).
The cooling and lubricating device of a kind of turbojet engine bearing arrangement the most according to claim 1, it is special
Levying and be, described bearing block body (3) inner chamber is provided with axle sleeve (6), and bearing block body (3) and axle sleeve (6)
Cooperatively form cavity and be oil storage chamber (5).
The cooling and lubricating device of a kind of turbojet engine bearing arrangement the most according to claim 1, it is special
Levying and be, the material of described bearing block body (3) is aluminium alloy.
The cooling and lubricating device of a kind of turbojet engine bearing arrangement the most according to claim 3, it is special
Levying and be, the material of described axle sleeve (6) is 42CrMo.
The cooling and lubricating device of a kind of turbojet engine bearing arrangement the most according to claim 3, it is special
Levying and be, described bearing block body (3) and axle sleeve (6) are interference fit.
The cooling and lubricating device of a kind of turbojet engine bearing arrangement the most according to claim 1, it is special
Levying and be, described point of font (2) and bearing block body (3) connect by screw is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531801.XA CN106014642A (en) | 2016-07-07 | 2016-07-07 | Cooling and lubricating device of turbojet engine bearing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531801.XA CN106014642A (en) | 2016-07-07 | 2016-07-07 | Cooling and lubricating device of turbojet engine bearing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014642A true CN106014642A (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610531801.XA Pending CN106014642A (en) | 2016-07-07 | 2016-07-07 | Cooling and lubricating device of turbojet engine bearing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106014642A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620638A (en) * | 2017-09-15 | 2018-01-23 | 中国科学院工程热物理研究所 | Suitable for the bearing lubrication cooling system of the short-lived turbojet engine of low cost |
| CN112065586A (en) * | 2020-09-08 | 2020-12-11 | 西安增材制造国家研究院有限公司 | Engine circulating lubrication oil way structure and engine rotating device |
| CN112483199A (en) * | 2020-12-11 | 2021-03-12 | 中国科学院工程热物理研究所 | Engine rotor transition section elastic support structure |
| CN113958411A (en) * | 2021-10-19 | 2022-01-21 | 中国科学院工程热物理研究所 | Cantilever type elastic supporting structure of aircraft engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839176A (en) * | 2009-09-03 | 2010-09-22 | 深圳市安托山特种机械有限公司 | Bearing-lubricating device of turbojet engine |
| CN104265460A (en) * | 2014-08-20 | 2015-01-07 | 中国科学院工程热物理研究所 | Miniature aeroengine bearing fuel oil heat-exchange cooling device |
| CN205805733U (en) * | 2016-07-07 | 2016-12-14 | 常州环能涡轮动力股份有限公司 | A kind of cooling and lubricating device of turbojet engine bearing arrangement |
-
2016
- 2016-07-07 CN CN201610531801.XA patent/CN106014642A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839176A (en) * | 2009-09-03 | 2010-09-22 | 深圳市安托山特种机械有限公司 | Bearing-lubricating device of turbojet engine |
| CN104265460A (en) * | 2014-08-20 | 2015-01-07 | 中国科学院工程热物理研究所 | Miniature aeroengine bearing fuel oil heat-exchange cooling device |
| CN205805733U (en) * | 2016-07-07 | 2016-12-14 | 常州环能涡轮动力股份有限公司 | A kind of cooling and lubricating device of turbojet engine bearing arrangement |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620638A (en) * | 2017-09-15 | 2018-01-23 | 中国科学院工程热物理研究所 | Suitable for the bearing lubrication cooling system of the short-lived turbojet engine of low cost |
| CN112065586A (en) * | 2020-09-08 | 2020-12-11 | 西安增材制造国家研究院有限公司 | Engine circulating lubrication oil way structure and engine rotating device |
| CN112065586B (en) * | 2020-09-08 | 2021-11-23 | 西安增材制造国家研究院有限公司 | Engine circulating lubrication oil way structure and engine rotating device |
| CN112483199A (en) * | 2020-12-11 | 2021-03-12 | 中国科学院工程热物理研究所 | Engine rotor transition section elastic support structure |
| CN113958411A (en) * | 2021-10-19 | 2022-01-21 | 中国科学院工程热物理研究所 | Cantilever type elastic supporting structure of aircraft engine |
| CN113958411B (en) * | 2021-10-19 | 2023-03-10 | 中国科学院工程热物理研究所 | Cantilever type elastic supporting structure of aircraft engine |
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Application publication date: 20161012 |