CN107402032B - A kind of multiple spot conversion equipment of revolving part wall surface parameter measurement - Google Patents
A kind of multiple spot conversion equipment of revolving part wall surface parameter measurement Download PDFInfo
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- CN107402032B CN107402032B CN201710567545.4A CN201710567545A CN107402032B CN 107402032 B CN107402032 B CN 107402032B CN 201710567545 A CN201710567545 A CN 201710567545A CN 107402032 B CN107402032 B CN 107402032B
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- transmission shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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Abstract
The present invention provides a kind of multiple spot conversion equipment of revolving part wall surface parameter measurement, and electrical feedthrough bearing block is ring flange class component, including sleeve part and is equipped with the integrated disc portions of velocity sensor；Transmission shaft component is arranged through electrical feedthrough bearing block both ends, wherein being pierced by integrated disc portions one end in transmission shaft component is socketed with bellows, the other end is equipped with aviation plug；It is located at electrical feedthrough bearing block sleeve part in transmission shaft component and is set with the duplex bearing support construction being connected with electrical feedthrough bearing block integrated disc portions, the cupping component being connected with duplex bearing support construction and phonic wheel are set with positioned at electrical feedthrough bearing block integrated disc portions, it is set with the oil sealing cover being connected with electrical feedthrough bearing block integrated disc portions between phonic wheel and bellows, the multiple groups lead being connected with aviation plug is internally provided in transmission shaft component.The device of the invention, engine test of once appearing on the stage can obtain multi-measuring point wall surface data and synchronous rotational speed data, and have certain fault-tolerant ability to nonstandard working environment.
Description
Technical field
The invention belongs to aeroengine rotor dynamic stress rest fields, and in particular to a kind of revolving part wall surface parameter measurement
Multiple spot conversion equipment.
Background technique
In aviation and other civil fields, it is often necessary to understand the wall surface parameter (dynamic stress, temperature, pressure) of rotor element,
Especially be frequently necessary to during reseach of engine carry out rotor element vibration stress test, with improve engine reliability,
Developing risk is reduced, especially when rotor element breaks down, this demand seems more urgent.In Now Domestic wall surface
It is electrical feedthrough method commonly using the test method arrived in parameter testing, i.e. gyrator channel is transferred to stator part by electrical feedthrough,
And the signal testing on rotary part is realized by test equipment.Measuring point quantity depends on electrical feedthrough port number on rotor part
Amount, especially under the conditions of high revolving speed (close to 11000RPM), electrical feedthrough size is limited by installation space on engine, with engine
For the test of rotor dynamic stress rest, engine is once appeared on the stage to test and can only at most be surveyed to not more than 21 under high speed conditions
Point measures.Measure more multi-measuring point, engine can only leave office decomposition, pasted on other measuring points appear on the stage after sensor after
Continuous to be tested, engine needs repeatedly to leave office to decompose appears on the stage again, and economic cost and time cost greatly increase, and twice
Assembly will cause engine operating condition difference, cause data comparability decline twice.Secondly for Dynamic Signal, it usually needs each
Phase relation between the acquired data in channel, this just needs synchronous acquisition rotary speed data, and on electrical feedthrough component usually now
There is no speed measuring device.Again, electrical feedthrough, which exists, is easy by engine rotor axial float and Influence from Eccentric, whole system without grease proofing
The problems such as device.
Summary of the invention
The purpose of the present invention is to provide a kind of multiple spot conversion equipment of revolving part wall surface parameter measurement, overcome or alleviated by existing
There is at least one drawbacks described above of technology.
The purpose of the present invention is achieved through the following technical solutions: a kind of multiple spot converting means of revolving part wall surface parameter measurement
It sets, for connecting electrical feedthrough component and transmission mechanism, including electrical feedthrough bearing block, transmission shaft component, duplex bearing support construction, skin
Bowl assembly, phonic wheel, oil sealing cover, bellows, velocity sensor, aviation plug, multiple groups will survey lead, multiple groups lead to be measured, draw electricity
Device bearing block is ring flange class component, including the sleeve part being connected with electrical feedthrough component and the disk for being equipped with velocity sensor
Part；Transmission shaft component is arranged through electrical feedthrough bearing block both ends, is socketed wherein being pierced by integrated disc portions one end in transmission shaft component
There is bellows, the other end is equipped with aviation plug；It is located at electrical feedthrough bearing block sleeve part in transmission shaft component to be set with and draw
The connected duplex bearing support construction of electric appliance bearing block integrated disc portions, is located at electrical feedthrough bearing block integrated disc portions set in transmission shaft component
Equipped with the cupping component being connected with duplex bearing support construction and it is located remotely from the phonic wheel of duplex bearing support construction side；It is being driven
Shaft assembly is set with the oil sealing cover being connected with electrical feedthrough bearing block integrated disc portions between phonic wheel and bellows, in transmission shaft group
The multiple groups that part is internally provided with multiple groups lead to be measured and is connected with aviation plug will survey lead.
Preferably, the transmission shaft component includes transmission shaft, locating shaft, the first locking nut, driving head；Transmission shaft packet
It includes cylindrical portions and the section being connected with the cylindrical portions one end and holds wire casing in the tubular of C font, wherein holding the internal diameter of wire casing
Greater than the outer diameter of cylindrical portions, the aviation plug is plugged with far from cylindrical portions one end holding wire casing；Locating shaft is cylindrical shape
Component is radially provided with peripheral flange in the circle tube member outside wall surface, and the locating shaft one end is through transmission shaft circle
Canister portion, which sets up separately, sets, and flange is in contact with transmission shaft, is pierced by cylindrical portions and is fixed by being set with the first locking nut, the locating shaft is another
It is socketed with the bellows on the outer wall of one end, and is connected with the biography for being connected with the transmission mechanism at the end end position
Dynamic head.
Preferably, the duplex bearing support construction is set in the cylindrical portions of the transmission shaft, duplex bearing support
Structure includes first bearing, spacing housing, spacing inner sleeve, second bearing, and wherein first bearing is located at cylindrical portions close to appearance line
Slot one end, the first bearing inner ring are matched with cylindrical portions outer wall, outer ring and electrical feedthrough bearing block sleeve part inner wall
It matches；Spacing housing is bonded the setting of electrical feedthrough bearing block inner wall, and wherein the spacing housing one end connects with first bearing outer ring
Touching, spacing housing other end bending to electric appliance bearing block integrated disc portions；Second bearing is arranged between spacing housing and transmission shaft；
Spacing inner sleeve is between two bearings, and the spacing inner sleeve both ends are in contact with two bearings inner ring respectively.
Preferably, the cupping component includes pressure ring, pedestal of leather bowl, leather cup, baffle ring, and pressure ring is sleeved on outside the transmission shaft
On wall, and the pressure ring one end is in contact with the second bearing inner ring, be set on the pressure ring outer wall leather cup and with this
The adjacent baffle ring of leather cup, wherein baffle ring is located remotely from duplex bearing support construction side；In the outer circumference surface of leather cup and baffle ring
On be socketed with the pedestal of leather bowl being in contact with the spacing housing dogleg section, and by bolt by pedestal of leather bowl, spacing housing bending
Partially, the electric appliance bearing block integrated disc portions three is connected.
Preferably, the phonic wheel is socketed on the transmission shaft, and be provided with prevents the two from relatively rotating therebetween
Locking key, and the fixed phonic wheel of the second locking nut is set on the rotating shaft, by screwing the second locking nut so that the phonic wheel
It is in contact respectively with the pressure ring, the second locking nut.
Preferably, the velocity sensor is drawing along the parallel electrical feedthrough bearing sleeve cylinder segment axis direction setting
Close sleeve part side in electric appliance bearing block integrated disc portions.
A kind of beneficial effect of the multiple spot conversion equipment of revolving part wall surface parameter measurement provided by the present invention is, starts
Machine test of once appearing on the stage can obtain multi-measuring point wall surface data and synchronous rotational speed data；Entire test device is to nonstandard working environment
With certain fault-tolerant ability；Data acquisition amount and data accuracy is greatly improved, reduces scientific research time and economic cost, to turn
The design and troubleshooting of component provide effective data supporting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the multiple spot conversion equipment of the revolving part wall surface parameter measurement in the present invention；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the test method figure of the multiple spot conversion equipment of the revolving part wall surface parameter measurement in the present invention；
Fig. 4 is the synchronous rotational speed pulse schematic diagram of apparatus of the present invention.
Appended drawing reference:
1- electrical feedthrough component, 2- will survey lead, 3- electrical feedthrough bearing block, the first locking nut of 4-, 5- transmission shaft, 6- first
Bearing, 7- spacing housing, 8- spacing inner sleeve, 9- second bearing, 10- pressure ring, 11- pedestal of leather bowl, 12- leather cup, 13- baffle ring, 14- sound
Wheel, 15- oil sealing cover, 16- locking key, the second locking nut of 17-, 18- locating shaft, 19- bellows, 20- sensor, 21- transmission
Mechanism, 22- driving head, 23- velocity sensor, 24- lead to be measured, 25- aviation plug.
Specific embodiment
The multiple spot conversion equipment of revolving part wall surface parameter measurement of the invention is done further specifically with reference to the accompanying drawing
It is bright.
As shown in Figure 1, a kind of multiple spot conversion equipment of revolving part wall surface parameter measurement, for connect electrical feedthrough component 1 with
Transmission mechanism 21, including electrical feedthrough bearing block 3, transmission shaft component, duplex bearing support construction, cupping component, phonic wheel 14, oil sealing cover
15, bellows 19, velocity sensor 23, aviation plug 25, multiple groups will survey lead 2, multiple groups lead 24 to be measured.
Electrical feedthrough bearing block 3 is ring flange class component, including the sleeve part being connected with electrical feedthrough component 1 and is equipped with survey
The integrated disc portions of fast sensor 23.Wherein the velocity sensor 23 is used to measure the revolving speed of phonic wheel 14, and the velocity sensor
23 selections are arranged in close in 3 integrated disc portions of electrical feedthrough bearing block along parallel 3 sleeve part axis direction of electrical feedthrough bearing block
Sleeve part side.Synchronous rotational speed pulse can be provided by phonic wheel 14, velocity sensor 23, is that the wall surfaces parameters such as dynamic stress are surveyed
Magnitude provides phase foundation, sees Fig. 4.
Transmission shaft component is arranged through 3 both ends of electrical feedthrough bearing block, and transmission shaft component selection includes transmission shaft 5, positioning
The form of axis 18, the first locking nut 4, driving head 22, wherein transmission shaft 5 include cylindrical portions and with the cylindrical portions one
The connected section in end holds wire casing in the tubular of C font, wherein the internal diameter for holding wire casing is greater than the outer diameter of cylindrical portions, holding, wire casing is remote
Aviation plug 25 is plugged with from cylindrical portions one end.Locating shaft 18 is circle tube member, the edge in the circle tube member outside wall surface
Radial direction is provided with peripheral flange, which is arranged through 5 cylindrical portions of transmission shaft, flange and 5 phase of transmission shaft
Contact is pierced by cylindrical portions and is fixed by the first locking nut 4 of suit, is socketed with bellows on 18 other end outer wall of locating shaft
19, the setting of bellows 19 can reduce the problem of engine driveshaft is with 18 nonconcentricity of locating shaft, and in the end end
Position is connected with the driving head 22 for being connected with transmission mechanism 21.
It is set with and electrical feedthrough bearing block 3 as shown in Fig. 2, being located at 3 sleeve part of electrical feedthrough bearing block in transmission shaft component
The connected duplex bearing support construction of integrated disc portions.The duplex bearing support construction is specifically set in the transmission shaft 5 in transmission shaft component
Cylindrical portions on, the formal character of duplex bearing support construction includes first bearing 6, spacing housing 7, spacing inner sleeve 8, the second axis
Hold more than 9 parts.First bearing 6 is located at close appearance wire casing one end in 5 cylindrical portions of transmission shaft, 6 inner ring of first bearing and circle
Cylinder outer wall matches, and outer ring is matched with 3 sleeve part inner wall of electrical feedthrough bearing block.Spacing housing 7 is bonded electrical feedthrough axis
The setting of 3 inner wall of seat is held, wherein 7 one end of spacing housing is in contact with 6 outer ring of first bearing, and 7 other end bending of spacing housing is arrived
In 3 integrated disc portions of electric appliance bearing block.Second bearing 9 is then arranged between spacing housing 7 and transmission shaft 5.Spacing inner sleeve 8 is located at two
Between bearing, and 8 both ends of spacing inner sleeve are in contact with two bearings inner ring respectively.The duplex bearing support construction can effectively reduce
Influence of the engine axial float to electrical feedthrough component 1.
It is located in 3 integrated disc portions of electrical feedthrough bearing block in transmission shaft component and is set with cupping component and phonic wheel 14, wherein sound
Wheel 14 is located remotely from duplex bearing support construction side.Cupping component selection includes pressure ring 10, pedestal of leather bowl 11, leather cup 12, baffle ring
13 form.Pressure ring 10 is sleeved on 5 outer wall of transmission shaft in transmission shaft component, and 10 one end of pressure ring and second bearing 9
Inner ring is in contact.Leather cup 12 and the baffle ring 13 adjacent with the leather cup 12 are set on 10 outer wall of pressure ring, wherein baffle ring 13
It is located remotely from duplex bearing support construction side.It is socketed with and 7 bending of spacing housing on the outer circumference surface of leather cup 12 and baffle ring 13
The pedestal of leather bowl 11 that part is in contact, and pass through bolt for pedestal of leather bowl 11,7 dogleg section of spacing housing, 3 round plate of electric appliance bearing block
Three is divided to be connected.
And phonic wheel 14 is equally socketed on transmission shaft 5, setting prevents the two from relatively rotating between phonic wheel 14 and transmission shaft 5
Locking key 16, and in rotation axis 5 selection suit the second locking nut 17 to fix phonic wheel 14, by screwing the second locking screw
Mother 17 makes the phonic wheel 14 be in contact respectively with pressure ring 10, the second locking nut 17.
It is set between phonic wheel 14 and bellows 19 in transmission shaft component and is connected with 3 integrated disc portions of electrical feedthrough bearing block
Oil sealing cover 15, the double-layer seal protection of oil sealing cover 15 and cupping component can reduce lubricating oil influence caused by electrical feedthrough, prolongs
The long electrical feedthrough service life.Locating shaft 18 in transmission shaft component be internally provided with multiple groups lead 24 to be measured and with aviation plug 25
Connected multiple groups will survey lead 2.
The installation steps of the present apparatus are described below.
First successively by first bearing 6, spacing housing 7, spacing inner sleeve 8, second bearing 9 from 3 right end of electrical feedthrough bearing block
It is packed into；Then transmission shaft 5 is packed into from 3 left end of electrical feedthrough bearing block；Next by pressure ring 10, locking key 16, phonic wheel 14, second
Locking nut 17, locating shaft 18, bellows 19, driving head 22, the first locking nut 4 are installed on transmission shaft 5；By pedestal of leather bowl
11, leather cup 12, baffle ring 13, oil sealing cover 15 are installed on electrical feedthrough bearing block 3；The lead 2 that survey of sensor 20 is drawn with to be measured
Line 24, which is installed to transmission shaft 5, to be held in wire casing, and will be surveyed lead 2 and be connected with aviation plug 25, then aviation plug 25 is installed
Onto transmission shaft 5；Finally 3 component of electrical feedthrough bearing block is connect with transmission mechanism 21, electrical feedthrough component 1, velocity sensor
23 are installed on 3 component of electrical feedthrough bearing block, are detailed in Fig. 1.
As shown in figure 3, test process is as follows.Test lead is penetrated from oil sealing set center, enters appearance by bellows 19
It with heat-shrink tube boundling is multiple groups lead whole leads, differentiation will survey lead 2 and lead 24 to be measured in wire casing.When operation, first
24 line end of lead to be measured is protected, then itself is wound to put into lead 24 to be measured and holds wire casing bottom, compacting.It connects down
It lead 2 will be surveyed will be welded with leading portion aviation plug 25, welding, which will equally survey lead 2 after the completion and itself be wound, puts
Enter to hold in wire casing.It is fixed to all leads in wire casing are held, finally aviation plug 25 is installed to and holds wire casing outer end face.It is to be measured
After the completion of examination, the lead for having completed test is removed from aviation plug 25, then does not survey lead welding by taking out in appearance wire casing
Onto aviation plug 25, all leads are reentered into appearance wire casing and continue to test, and so on, repetitive operation.
According to test conversion device provided by the invention and operating process, by taking rotor wall surface parameter testing as an example, engine
Once appearing on the stage can obtain much with 60 measuring point datas, be much higher than existing level.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (6)
1. a kind of multiple spot conversion equipment of revolving part wall surface parameter measurement, for connecting electrical feedthrough component (1) and transmission mechanism
(21), which is characterized in that including electrical feedthrough bearing block (3), transmission shaft component, duplex bearing support construction, cupping component, phonic wheel
(14), oil sealing cover (15), bellows (19), velocity sensor (23), aviation plug (25), multiple groups will survey lead (2), multiple groups wait for
Survey lead (24), electrical feedthrough bearing block (3) is ring flange class component, including the sleeve part that is connected with electrical feedthrough component (1) and
The integrated disc portions of velocity sensor (23) are installed；Transmission shaft component is arranged through electrical feedthrough bearing block (3) both ends, wherein passing
Moving axis component is pierced by integrated disc portions one end and is socketed with bellows (19), and the other end is equipped with aviation plug (25)；In transmission shaft group
Part is located at electrical feedthrough bearing block (3) sleeve part and is set with the duplex bearing support being connected with electrical feedthrough bearing block (3) integrated disc portions
Structure is located at electrical feedthrough bearing block (3) integrated disc portions in transmission shaft component and is set with the leather cup being connected with duplex bearing support construction
Component and the phonic wheel (14) for being located remotely from duplex bearing support construction side；It is located at phonic wheel (14) and bellows in transmission shaft component
(19) it is set with the oil sealing cover (15) being connected with electrical feedthrough bearing block (3) integrated disc portions between, is arranged inside transmission shaft component
There are multiple groups lead to be measured (24) and the multiple groups being connected with aviation plug (25) to survey lead (2).
2. the multiple spot conversion equipment of revolving part wall surface parameter measurement according to claim 1, which is characterized in that the transmission
Shaft assembly includes transmission shaft (5), locating shaft (18), the first locking nut (4), driving head (22)；Transmission shaft (5) includes cylindrical portion
The section divided and be connected with the cylindrical portions one end holds wire casing in the tubular of C font, wherein the internal diameter for holding wire casing is greater than cylinder
Partial outer diameter is plugged with the aviation plug (25) far from cylindrical portions one end holding wire casing；Locating shaft (18) is cylindrical shape
Component is radially provided with peripheral flange in the circle tube member outside wall surface, and locating shaft (18) one end is through transmission
The setting of axis (5) cylindrical portions, flange are in contact with transmission shaft (5), and it is solid by suit the first locking nut (4) to be pierced by cylindrical portions
It is fixed, it is socketed with the bellows (19) on locating shaft (18) other end outer wall, and be connected with and be used at the end end position
The driving head (22) being connected with the transmission mechanism (21).
3. the multiple spot conversion equipment of revolving part wall surface parameter measurement according to claim 2, which is characterized in that the twin shaft
It holds support construction to be set in the cylindrical portions of the transmission shaft (5), which includes first bearing (6), determines
Away from housing (7), spacing inner sleeve (8), second bearing (9), wherein first bearing (6) is located at the close appearance wire casing one end of cylindrical portions,
First bearing (6) inner ring is matched with cylindrical portions outer wall, outer ring and electrical feedthrough bearing block (3) sleeve part inner wall phase
Cooperation；Spacing housing (7) is bonded the setting of electrical feedthrough bearing block (3) inner wall, wherein spacing housing (7) one end and first bearing
(6) outer ring is in contact, spacing housing (7) other end bending to electric appliance bearing block (3) integrated disc portions；Second bearing (9) setting exists
Between spacing housing (7) and transmission shaft (5)；Spacing inner sleeve (8) is between two bearings, and spacing inner sleeve (8) both ends point
It is not in contact with two bearings inner ring.
4. the multiple spot conversion equipment of revolving part wall surface parameter measurement according to claim 3, which is characterized in that the leather cup
Component includes pressure ring (10), pedestal of leather bowl (11), leather cup (12), baffle ring (13), and pressure ring (10) is sleeved on the transmission shaft (5) outer wall
On, and pressure ring (10) one end is in contact with the second bearing (9) inner ring, is set with leather cup on pressure ring (10) outer wall
(12) baffle ring (13) adjacent and with the leather cup (12), wherein baffle ring (13) is located remotely from the duplex bearing support construction one
Side；The skin being in contact with spacing housing (7) dogleg section is socketed on leather cup (12) and the outer circumference surface of baffle ring (13)
Bowl seat (11), and pass through bolt for pedestal of leather bowl (11), spacing housing (7) dogleg section, the electric appliance bearing block (3) integrated disc portions
Three is connected.
5. the multiple spot conversion equipment of revolving part wall surface parameter measurement according to claim 4, which is characterized in that the phonic wheel
(14) it is socketed on the transmission shaft (5), is provided with the locking key (16) for preventing the two from relatively rotating therebetween, and turning
It is set with the second locking nut (17) on moving axis (5) and fixes phonic wheel (14), by screwing the second locking nut (17) so that the phonic wheel
(14) it is in contact respectively with the pressure ring (10), the second locking nut (17).
6. the multiple spot conversion equipment of revolving part wall surface parameter measurement according to claim 1, which is characterized in that described to test the speed
Sensor (23) is arranged along parallel electrical feedthrough bearing block (3) the sleeve part axis direction in electrical feedthrough bearing block (3) disk
Close sleeve part side on part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567545.4A CN107402032B (en) | 2017-07-12 | 2017-07-12 | A kind of multiple spot conversion equipment of revolving part wall surface parameter measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567545.4A CN107402032B (en) | 2017-07-12 | 2017-07-12 | A kind of multiple spot conversion equipment of revolving part wall surface parameter measurement |
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| Publication Number | Publication Date |
|---|---|
| CN107402032A CN107402032A (en) | 2017-11-28 |
| CN107402032B true CN107402032B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710567545.4A Active CN107402032B (en) | 2017-07-12 | 2017-07-12 | A kind of multiple spot conversion equipment of revolving part wall surface parameter measurement |
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| CN (1) | CN107402032B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332956B (en) * | 2017-12-26 | 2020-06-09 | 中国航发四川燃气涡轮研究院 | Outlet rotation measuring mechanism for turbine performance test |
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| JPH03207284A (en) * | 1989-12-29 | 1991-09-10 | Ntn Corp | Motor load detector |
| JP3199057B2 (en) * | 1991-09-13 | 2001-08-13 | 株式会社デンソー | Abnormality detection device for fuel evaporation prevention device |
| CN102095515A (en) * | 2011-01-05 | 2011-06-15 | 北京航空航天大学 | Temperature-measuring device for cylindrical combustion chamber wall |
| CN205015110U (en) * | 2015-04-30 | 2016-02-03 | 中国航空动力机械研究所 | Installation device is measured to aeroengine's compressor blade dynamic stress |
| CN105424371A (en) * | 2015-12-12 | 2016-03-23 | 中国南方航空工业(集团)有限公司 | Signal transmission apparatus |
| CN106197808A (en) * | 2016-08-16 | 2016-12-07 | 中国航空工业集团公司沈阳发动机设计研究所 | The location of a kind of rotor without thrust bearing and axial-force testing device |
| CN106441905A (en) * | 2016-08-16 | 2017-02-22 | 中国航空工业集团公司沈阳发动机设计研究所 | Signal transmission device with rotor acting as benchmark |
-
2017
- 2017-07-12 CN CN201710567545.4A patent/CN107402032B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03207284A (en) * | 1989-12-29 | 1991-09-10 | Ntn Corp | Motor load detector |
| JP3199057B2 (en) * | 1991-09-13 | 2001-08-13 | 株式会社デンソー | Abnormality detection device for fuel evaporation prevention device |
| CN102095515A (en) * | 2011-01-05 | 2011-06-15 | 北京航空航天大学 | Temperature-measuring device for cylindrical combustion chamber wall |
| CN205015110U (en) * | 2015-04-30 | 2016-02-03 | 中国航空动力机械研究所 | Installation device is measured to aeroengine's compressor blade dynamic stress |
| CN105424371A (en) * | 2015-12-12 | 2016-03-23 | 中国南方航空工业(集团)有限公司 | Signal transmission apparatus |
| CN106197808A (en) * | 2016-08-16 | 2016-12-07 | 中国航空工业集团公司沈阳发动机设计研究所 | The location of a kind of rotor without thrust bearing and axial-force testing device |
| CN106441905A (en) * | 2016-08-16 | 2017-02-22 | 中国航空工业集团公司沈阳发动机设计研究所 | Signal transmission device with rotor acting as benchmark |
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