CN106706319A - Cylinder roller bearing birotor testing machine shafting structure - Google Patents
Cylinder roller bearing birotor testing machine shafting structure Download PDFInfo
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- CN106706319A CN106706319A CN201611219839.XA CN201611219839A CN106706319A CN 106706319 A CN106706319 A CN 106706319A CN 201611219839 A CN201611219839 A CN 201611219839A CN 106706319 A CN106706319 A CN 106706319A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A cylinder roller bearing birotor testing machine shafting structure is arranged in a bearing testing machine, and comprises an inner ring rotor shaft and an outer ring rotor shaft; a tested bearing is fixedly sleeved on a test end of the inner ring rotor shaft, and the outer end is pressed in an inner hole of an outer ring rotor shaft test end; the inner ring rotor shaft is also sleeved by a first support bearing pack and a radial loading bearing; the outer ring rotor shaft is also sleeved by an accompany bearing and a second support bearing pack; the accompany bearing and the radial loading bearing are symmetrical with respect to the tested bearing; the second support bearing pack and the first support bearing pack are symmetrical around the tested bearing; the first and second support bearing packs respectively comprise two angle contact bearings arranged in parallel, wherein the one close to the tested bearing is the support bearing, the other one is the axial loading bearing, and an isolation sleeve is arranged between the support bearing and the axial loading bearing. The cylinder roller bearing birotor testing machine shafting structure is scientific in structure, can effectively improve testing speed, and is wide in application scope.
Description
Technical field
The present invention relates to a kind of bearing tester shafting structure, specifically a kind of cylinder roller bearing birotor experiment
Arbor architecture.
Background technology
Bearing is the key foundation parts in all kinds of equipment manufacturings, and the quality of its quality directly decides the property of equipment
Energy, reliability and life-span；Due to bearing work under bad environment, the load working condition that bears is complicated, to have long enough even to fill
It is non-maintaining etc. for life cycle management, bearing must be done on testing machine during designing, developing and manufacturing
The checking of corresponding simulation operating mode, for research, design, manufactures and using reliable test data is provided, and is design, the manufacture of bearing
Foundation is provided with using.High temperature, the research and development of high speed and precision bearing, design, manufacture and its experimental technique are mainly few by foreign countries
The several trans-corporations of number are monopolized, and the research and development of the such testing machine of China start from for the 7, eighties, due to being designed at that time, and manufactured, made
Limited with waiting, during the inside and outside diameter of test bearing is also only limited, small size, limit speed is relatively low, it is impossible to meet it is now big directly
Footpath, high temperature, the test requirements document of rotating speed bearing high.
Most of existing bearing tester uses single pivot structure, the inner ring or outer ring phase of rotating shaft and test bearing
Connection, can conveniently realize the rotation of bearing and the simulated test of loading form on testing machine, but this bearing test
Machine has many deficiencies.Because can only be fixed with inner ring or outer ring, when simultaneously test bearing needs what inner ring and outer ring rotated
When, testing machine just can not be applicable.Although also having some that bearing internal external circle can be made to rotate the birotor tested simultaneously to try
Machine is tested, but the bearing of minor diameter, low speed can only typically be tested, it is impossible to major diameter, rotating speed high, oil working environment high
Bearing tested.
In bearing test, test speed is a very important parameter, and testing machine of the prior art is limited to axle
It is designing and manufacturing level and loading device structure type, test speed can only achieve 15000rpm or so, it is impossible to test large-scale, work
Internal and external cycle in work is while rotation, high temperature, the bearing for running at high speed.
The content of the invention
In order to solve deficiency of the prior art, the present invention provides a kind of scientific structure, can effectively improve test speed,
And a kind of cylinder roller bearing birotor testing machine shafting structure that outer ring and inner ring can be simultaneously tested.
To achieve these goals, the concrete scheme that uses of the present invention for：
A kind of cylinder roller bearing birotor testing machine shafting structure, is arranged on inside bearing tester, including inner ring armature spindle
With outer ring armature spindle, test bearing fixes and is set in the experiment end of inner ring armature spindle, and its outer ring is pressed on outer ring rotor shaft experiment
In the endoporus at end, the first bearing support group and radial loaded bearing, and radial loaded axle are also arranged with the inner ring armature spindle
Hold between the first bearing support group and test bearing；Also it is arranged with the outer ring armature spindle and accompanies examination bearing and the second supporting
Bearing group；It is described to accompany examination bearing and radial loaded bearing symmetrical on test bearing, the second bearing support group and the first support shaft
Hold group symmetrical on test bearing；The first bearing support group and the second bearing support group include two angles being set up in parallel
Contact bearing, wherein be bearing support near one of test bearing, another is axially loaded bearing, in bearing support and
Spacer is additionally provided between axially loaded bearing.
Fixation is arranged with lubricating sleeve under ring on the experiment end of the inner ring armature spindle, and the test bearing is set in Huan Xiarun
On sliding sleeve, its inner ring covers axial limiting by the shaft shoulder structure set on lubricating sleeve outer wall under ring and short ladder to be fixed；It is described outer
The experiment end for enclosing armature spindle is also fixedly connected with test bearing pressure ring, and test bearing pressure ring axially limits the outer ring of test bearing
Position.
The radial loaded bearing is cylinder roller bearing, and its inner ring covers axial limiting by the shaft shoulder and the second ladder, outward
Circle is fixedly connected with radial loaded bearing block；Also it is fixedly connected with radially away from the side of test bearing in radial loaded bearing block
Load bearings oil distribution casing, radial loaded bearing oil distribution casing provides lubrication oil gas to radial loaded bearing, and by radial loaded bearing
Outer ring axial limiting；The top of the radial loaded bearing block is further opened with a groove, and cushion pad is provided with groove.
Described to accompany examination bearing for cylinder roller bearing, its inner ring covers axial limiting, outer ring and accompanies examination by the shaft shoulder and ladder
Bearing block is fixedly connected, and examination bearing oil distribution casing is accompanied accompanying the side of examination bearing to be additionally provided with, and is accompanied examination bearing oil distribution casing and is accompanied examination axle
Bearing is fixedly connected, for accompany examination bearing provide lubricating oil；Pressure ring A and pressure are also respectively provided with the both sides of examination bearing block are accompanied
Ring B, is fixedly connected with testing machine body, for that will accompany examination bearing block axial limiting.
The outer ring of the bearing support is fixedly connected with angular contact bearing fixed platen, the outer ring and angle of axially loaded bearing
Contact bearing floating platen is fixedly connected；Angular contact bearing oil-air lubrication is additionally provided between two angular contact bearings with oil
Disk, angular contact bearing oil-air lubrication oil distribution casing is fixed in angular contact bearing fixed platen and is provided with Bidirectional nozzle, two-way
Nozzle is respectively facing bearing support and axially loaded bearing.
The angular contact bearing fixed platen is also fixedly connected with angular contact bearing pressure ring, angle near the side of test bearing
Contact bearing pressure ring is fixedly connected and by angular contact bearing fixed platen axial limiting with testing machine body.
The side of the angular contact bearing floating platen dorsad angular contact bearing fixed platen is embedded with bearing ring, for holding
By axial load, several pressure sensors are additionally provided with the side near test bearing of bearing ring, each pressure sensing
The guiding string holes of device is equipped with a guide finger, and guide finger insertion is arranged on the angular contact bearing floating platen and angular contact bearing
The inside of fixed platen.
Linear bearing and retainer are also arranged with the angular contact bearing floating platen.
Beneficial effect：
1st, the present invention can be led to using the combination of the bearing support axially loaded bearing of collocation with the change of test speed
The axially loaded power for automatically adjusting bearing support is crossed, bearing support rigidity automatically adjusting in the full operating rotational speed range of shafting is realized
Matching；
2nd, using dual-rotor structure, Internal and external cycle can be carried out to test bearing and unidirectionally rotates experiment, the rotation examination of unidirectional friction speed at the same speed
Test, two-way synchronized rotation is tested or bidirectional different speed rotation experiment, test method is flexibly, applied widely；
3rd, load is transmitted by cushion pad in radial loaded link, the friction in loading procedure and inner ring armature spindle can be reduced
Vibration；
4th, each accompanies examination bearing by the way of oil-air lubrication, and high lubricating effect still can under the circumference of the high-speed rotation
The demand of lubrication, and the lubricants capacity for using are met than relatively low, and are accompanied and used between examination bearing and testing machine body
Cross set frock to be attached, replacing only needs to change corresponding transition sleeve frock when accompanying examination bearing, reduces experimentation cost；
5th, test bearing is set on inner ring armature spindle by the transition that lubricating sleeve under ring and ladder cover composition, in difference
The bearing in footpath, it is only necessary to change by corresponding transition degree covers and tested, without changing armature spindle, reduce the complexity of experiment
Degree, reduces experimentation cost.
Brief description of the drawings
Fig. 1 is overall structure diagram；
Fig. 2 is bearing support group and institute's connection member structural representation；
Fig. 3 test bearings, radial loaded bearing, accompany examination bearing and each bearing institute connection member structural representation.
Reference：1st, inner ring armature spindle, the 2, first ladder set, 3, spacer, 4, angular contact bearing floating platen, 5, corner connection
Contact bearing oil-air lubrication oil distribution casing, 6, linear bearing, 7, angular contact bearing fixed platen, 8, angular contact bearing pressure ring, 9, be oriented to
Pin, the 10, second ladder set, 11, radial loaded bearing oil distribution casing, 12, radial loaded bearing block, 13, lubricating sleeve under ring, 14, short
Ladder set, 15, test bearing pressure ring, 16, outer ring armature spindle, 17, pressure ring A, 18, accompany examination bearing block, 19, pressure ring B, 20, vibration
Sensor stand, 21, test bearing, 22, radial loaded bearing, 23, accompany examination bearing, 24, cushion pad, 25, accompany examination bearing with oil
Disk, 26 first bearing support groups, the 27, second bearing support group, 28, bearing ring, 29, pressure sensor.
Specific embodiment
Embodiments of the present invention are illustrated below according to accompanying drawing.
As shown in Figure 1 to Figure 3, a kind of cylinder roller bearing birotor testing machine shafting structure, is arranged on bearing tester
Inside, including inner ring armature spindle 1 and outer ring armature spindle 16.Fixed on the experiment end of inner ring armature spindle 1 and lubricated under being arranged with ring
Set 13, is provided with shaft shoulder structure on the outer wall of lubricating sleeve 13 under ring, test bearing 21 is set under ring on lubricating sleeve 13, and inner ring
14 axial limitings are covered by shaft shoulder structure and short ladder to fix, short ladder set 14 is arranged on test bearing 21 near outer ring armature spindle 16
Side.The outer ring of the test bearing 21 is pressed in the endoporus at the experiment of outer ring armature spindle 16 end, the examination of outer ring armature spindle 16
Test end and be also fixedly connected with test bearing pressure ring 15, test bearing pressure ring 15 is by the outer ring axial limiting of test bearing 21.Experiment
Bearing pressure ring 15 is fixed on outer ring armature spindle 16 using 10 M6*20 bolts being distributed uniformly and circumferentially and spring washer
On experiment end.The transition sleeve of lubricating sleeve 13 and the composition of short ladder set 14 under the ring, for the test bearing 21 of different model, only
Tested by needing to change corresponding transition sleeve with the internal diameter of match test bearing 21, it is convenient fast without changing armature spindle
It is prompt and experimentation cost can be saved.
The first bearing support group 26 and radial loaded bearing 22, and radial loaded are also arranged with the inner ring armature spindle 1
Bearing 22 is located between the first bearing support group 26 and test bearing 21；Also it is arranged with the outer ring armature spindle 16 and accompanies examination bearing
23 and the second bearing support group 27；It is described to accompany examination bearing 23 symmetrical on test bearing 21 with radial loaded bearing 22, second
Hold the bearing support group 26 of bearing group 27 and first symmetrical on test bearing 21.
The radial loaded bearing 22 is cylinder roller bearing, its inner ring by the shaft shoulder that sets on inner ring armature spindle 1 and
Second ladder covers 10 axial limitings, and the second ladder set 10 is arranged on radial loaded bearing 22 near the first bearing support group 26
Side.The outer ring of radial loaded bearing 22 is fitted in the endoporus of radial loaded bearing block 12, is leaned in radial loaded bearing block 12
The side of nearly first spring bearing group 26 is also fixedly connected with radial loaded bearing oil distribution casing 11, and connected mode is using 10
M8*30 bolts and spring washer are fixed, and radial loaded bearing oil distribution casing 11 is used to provide lubrication oil gas to radial loaded bearing 22
And by the outer ring axial limiting of radial loaded bearing 22, lubricating system uses oil-air lubrication, it is possible to increase lubricant effect, reduce
The frictional heating of radial loaded bearing 22, effectively increases the revolution at a high speed kinematic accuracy of shafting, extends testing machine and uses the longevity
Life.The left end of radial loaded bearing oil distribution casing 11 offers multiple fuel feed holes, and each fuel feed hole connects one and is arranged radially in
Oil duct inside oil distribution casing, the other end of oil duct is communicated with atomizer, and atomizer is to the injection lubrication oil gas of radial loaded bearing 22.
The oil and gas path design of multiple-input, multiple-output, can not only make each nozzle spray isobaric lubrication oil gas, and can make lubricating oil gas
Uniformly act on radial loaded bearing 22.The top of the radial loaded bearing block 12 is additionally provided with cushion pad 24, is entering
During row experiment, radial loading device is set in the top of radial loaded bearing block 12, radial loading device is by load-time slow
Rush on pad 24, and then pass sequentially through radial loaded bearing block 12, radial loaded bearing 22 and inner ring armature spindle 1 and apply radial load
It is added on test bearing 21.By setting cushion pad 24, radial loaded process is had the wear-resisting link of damping, be prevented from because shaking
It is dynamic the collection of loading force signal, measurement is produced error, while vibrating the influence of shaft beyond also effectively prevent shafting.
It is described accompany examination bearing 23 be cylinder roller bearing, its inner ring by ladder set axial limiting, outer ring then with accompany examination axle
Bearing 18 is fixedly connected, and examination bearing oil distribution casing 25 is accompanied accompanying the side of examination bearing 23 to be additionally provided with, accompany examination bearing oil distribution casing 25 with
Accompany examination bearing block 18 be fixedly connected, for accompany examination bearing 23 provide lubrication oil gas.In order to the examination axial limiting of bearing block 18 will be accompanied,
Accompanying examination bearing top that the first gland is set, the first gland is fixed on testing machine body, is accompanying the left and right two of examination bearing block 18
End is respectively arranged with pressure ring A17 and pressure ring B19, and pressure ring A17 and pressure ring B19 is fixed with the first gland respectively and testing machine body is solid
Fixed connection, will accompany the examination axial limiting of bearing block 18, and connected mode is to be fixed by 6 M10*20 bolts and spring washer.If
That changes different model accompanies examination bearing 23, it is only necessary to change the transition accompanied examination bearing block 18 and accompany examination bearing oil distribution casing 25 to constitute
Set frock can be tested, and variation is made without the overall fixed structure to testing machine, can meet various different experiments
Operating mode.
The first bearing support group 26 and the second bearing support group 27 include two angular contact bearings being set up in parallel,
Wherein be close to test bearing 21 one is bearing support, and another is axially loaded bearing, is added in bearing support and axial direction
Spacer 3 is additionally provided between load bearing.The outer ring of the bearing support passes through 32 M8*20 bolts and spring washer and angular contact
Bearing fixed platen 7 is fixedly connected, and the outer ring of axially loaded bearing is by 32 M8*20 bolts and spring washer and angular contact axle
Floating platen 4 is held to be fixedly connected.The angular contact bearing oil-air lubrication of Bidirectional nozzle is additionally provided between two angular contact bearings
Oil distribution casing 5, angular contact bearing oil-air lubrication oil distribution casing 5 is fixed in angular contact bearing fixed platen 7, two-way nozzle respectively to
The raceway injection lubrication oil gas of bearing support and axially loaded bearing.It is floating in angular contact bearing fixed platen 7 and angular contact bearing
The top of dynamic pressure disk 4 is additionally provided with the second gland, and the second gland is fixedly connected with testing machine body.The second gland right-hand member also
Be provided with angular contact bearing pressure ring 8, angular contact bearing pressure ring 8 using 18 M8*20 bolts and spring washer and the second gland and
Testing machine and body are fixedly connected with, and then angular contact bearing fixed platen 7 is close to the side axial limiting of outer ring armature spindle 16.
Angular contact bearing floating platen 4 is connected by linear bearing 6 and its retainer with the second gland slip, is reduced angular contact bearing and is floated
Friction between the gland of dynamic pressure disk 4 and second, and improve integral rigidity.Because cylinder roller bearing is operationally not subject to axial direction
Load, therefore when being tested, angular contact bearing fixed platen 7 needs axial limiting, so as to ensure bearing support in axial direction
On will not shift, prevent armature spindle occur in the presence of bearing support axial direction move and cause in test bearing 21
Outer ring departs from.
The side of the angular contact bearing floating platen 4 dorsad angular contact bearing fixed platen 7 is embedded with bearing ring 28, holds
The outside of pressure also 28 is provided with axial loading device, and axial loading device output axial load is simultaneously applied on bearing ring 28, enters
And angular contact bearing floating platen 4, axially loaded bearing and spacer 3 are passed sequentially through to bearing support imposed load.With it is traditional
Compared using single bearing supporting way, loading force can be adjusted flexibly according to rotating speed, the rigidity of bearing support is followed
Turn to automatically adjust, the purpose of test speed is improved so as to reach.It is additionally provided with away from the side of test bearing 21 in bearing ring 28
Several pressure sensors 29, at the trial, pressure sensor 29 is preferably 3, the pressure that each pressure sensor 29 is measured
The conjunction of numerical value is the axial load of axial loading device output.The guiding string holes of each pressure sensor 29 is hollow equipped with one
The guide finger 9 of structure, the insertion of guide finger 9 is arranged on the inside of the angular contact bearing fixed platen 7, and one end is solid by screw thread
It is scheduled in angular contact bearing floating platen 4, guide finger 9 had both completed angular contact bearing floating platen 4 and angular contact bearing fixes pressure
The guiding of disk 7 is installed, while the guide line for drawing pressure sensor 29.
Claims (8)
1. a kind of cylinder roller bearing birotor testing machine shafting structure, is arranged on inside bearing tester, including inner ring rotor
Axle（1）With outer ring armature spindle（16）, test bearing（21）Fixation is set in inner ring armature spindle（1）Experiment end, its outer ring pressure set
In outer ring armature spindle（16）In the endoporus at experiment end, it is characterised in that：
The inner ring armature spindle（1）On be also arranged with the first bearing support group（26）With radial loaded bearing（21）, and radially add
Carry bearing（21）Positioned at the first bearing support group（26）And test bearing（21）Between；The outer ring armature spindle（16）On be also arranged
Accompany examination bearing（23）With the second bearing support group（27）；It is described to accompany examination bearing（23）With radial loaded bearing（21）On experiment
Bearing（22）Symmetrically, the second bearing support group（27）With the first bearing support group（26）On test bearing（22）Symmetrically；
The first bearing support group（26）With the second bearing support group（27）Include two angular contact bearings being set up in parallel,
Wherein near test bearing（21）One be bearing support, another be axially loaded bearing, in bearing support and axial direction
Spacer is additionally provided between load bearings（3）.
2. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 1, it is characterised in that：In described
Circle armature spindle（1）Experiment end on fixation be arranged with lubricating sleeve under ring（13）, the test bearing（21）It is set in lubrication under ring
Set（13）On, its inner ring is by lubricating sleeve under ring（13）The shaft shoulder structure set on outer wall and short ladder set（14）Axial limiting is consolidated
It is fixed；The outer ring armature spindle（16）Experiment end be also fixedly connected with test bearing pressure ring（15）, test bearing pressure ring（15）Will
Test bearing（21）Outer ring axial limiting.
3. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 1, it is characterised in that：The footpath
To load bearings（22）It is cylinder roller bearing, its inner ring passes through the shaft shoulder and the second ladder set（10）Axial limiting, outer ring is fixed
It is connected with radial loaded bearing block（12）；In radial loaded bearing block（12）Away from test bearing（21）Side be also fixedly connected
There is radial loaded bearing oil distribution casing（11）, radial loaded bearing oil distribution casing（11）To radial loaded bearing（22）Lubricating oil is provided
Gas, and by radial loaded bearing（22）Outer ring axial limiting；The radial loaded bearing block（12）Top be further opened with one
Individual groove, is provided with cushion pad in groove（24）.
4. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 1, it is characterised in that：It is described to accompany
Examination bearing（23）It is cylinder roller bearing, its inner ring covers axial limiting, outer ring and accompanies examination bearing block by the shaft shoulder and ladder（18）
It is fixedly connected, is accompanying examination bearing（23）Side be additionally provided with accompany examination bearing oil distribution casing（25）, accompany examination bearing oil distribution casing（25）With
Accompany examination bearing block（18）It is fixedly connected, for accompanying examination bearing（23）Lubrication oil gas is provided；Accompanying examination bearing block（18）Both sides
It is also respectively provided with pressure ring A（17）With pressure ring B（19）, it is fixedly connected with testing machine body, for examination bearing block will to be accompanied（18）
Axial limiting.
5. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 1, it is characterised in that：The branch
Hold outer ring and the angular contact bearing fixed platen of bearing（7）It is fixedly connected, outer ring and the angular contact bearing of axially loaded bearing are floated
Dynamic pressure disk（4）It is fixedly connected；Angular contact bearing oil-air lubrication oil distribution casing is additionally provided between two angular contact bearings（5）, angle
Contact bearing oil-air lubrication oil distribution casing（5）It is fixed on angular contact bearing fixed platen（7）Go up and be provided with Bidirectional nozzle, it is two-way
Nozzle is respectively facing bearing support and axially loaded bearing.
6. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 5, it is characterised in that：The angle
Contact bearing fixed platen（7）Near test bearing（21）Side be also fixedly connected with angular contact bearing pressure ring（8）, angular contact
Bearing pressure ring（8）It is fixedly connected with testing machine body and by angular contact bearing fixed platen（7）Axial limiting.
7. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 5, it is characterised in that：The angle
Contact bearing floating platen（4）Dorsad angular contact bearing fixed platen（7）Side be embedded with bearing ring（28）, for bearing axle
To load, in bearing ring（28）Close test bearing（21）Side be additionally provided with several pressure sensors（29）, each
Pressure sensor（29）Guiding string holes be equipped with a guide finger（9）, guide finger（9）Insertion is arranged on the angular contact bearing and floats
Dynamic pressure disk（4）With angular contact bearing fixed platen（7）Inside.
8. a kind of cylinder roller bearing birotor testing machine shafting structure as claimed in claim 5, it is characterised in that：The angle
Contact bearing floating platen（4）On be also arranged with linear bearing（6）And retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219839.XA CN106706319B (en) | 2016-12-26 | 2016-12-26 | Cylindrical roller bearing birotor testing machine shafting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219839.XA CN106706319B (en) | 2016-12-26 | 2016-12-26 | Cylindrical roller bearing birotor testing machine shafting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106706319A true CN106706319A (en) | 2017-05-24 |
| CN106706319B CN106706319B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611219839.XA Active CN106706319B (en) | 2016-12-26 | 2016-12-26 | Cylindrical roller bearing birotor testing machine shafting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989925A (en) * | 2017-06-02 | 2017-07-28 | 中国航发湖南动力机械研究所 | Aero-engine high-speed bearing tests radial loading device |
| CN110319983A (en) * | 2019-07-11 | 2019-10-11 | 中国航发哈尔滨东安发动机有限公司 | A kind of pipeline inlet and outlet hole wall leak check tooling |
| CN114166490A (en) * | 2021-11-23 | 2022-03-11 | 中国直升机设计研究所 | Centrifugal force separating type loading test device for central part of main propeller of rigid rotor wing |
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| JPH09264816A (en) * | 1996-03-29 | 1997-10-07 | Nippon Seiko Kk | Bearing test device |
| CN201251507Y (en) * | 2008-09-01 | 2009-06-03 | 洛阳工铭机电设备有限公司 | Cantilever supporting mechanism and axial and radial loading mechanism of automobile wheel boss bearing testing machine |
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| JPH09264816A (en) * | 1996-03-29 | 1997-10-07 | Nippon Seiko Kk | Bearing test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989925A (en) * | 2017-06-02 | 2017-07-28 | 中国航发湖南动力机械研究所 | Aero-engine high-speed bearing tests radial loading device |
| CN110319983A (en) * | 2019-07-11 | 2019-10-11 | 中国航发哈尔滨东安发动机有限公司 | A kind of pipeline inlet and outlet hole wall leak check tooling |
| CN114166490A (en) * | 2021-11-23 | 2022-03-11 | 中国直升机设计研究所 | Centrifugal force separating type loading test device for central part of main propeller of rigid rotor wing |
| CN114166490B (en) * | 2021-11-23 | 2023-05-23 | 中国直升机设计研究所 | Centrifugal force separation type loading test device for main rotor center piece of rigid rotor |
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| Publication number | Publication date |
|---|---|
| CN106706319B (en) | 2023-03-14 |
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