CN207923451U - Thrust air hydrodynamic bearing test of bearing capacity device - Google Patents
Thrust air hydrodynamic bearing test of bearing capacity device Download PDFInfo
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- CN207923451U CN207923451U CN201820387440.0U CN201820387440U CN207923451U CN 207923451 U CN207923451 U CN 207923451U CN 201820387440 U CN201820387440 U CN 201820387440U CN 207923451 U CN207923451 U CN 207923451U
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- bearing
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- mounting disc
- test
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Abstract
The utility model discloses thrust air hydrodynamic bearing test of bearing capacity device, including testboard and the loading device, rolling bearing, bearing mounting disc to be measured, bearing to be measured, thrust button, the high-speed electric expreess locomotive that are from left to right sequentially coaxially mounted on testboard；The thrust button is mounted on high-speed electric expreess locomotive external part and forms matching pair with bearing to be measured, the bearing to be measured is fixedly mounted in bearing mounting disc to be measured, the bearing mounting disc to be measured is mounted in the inner ring of rolling bearing, and the one end of the rolling bearing far from bearing to be measured is equipped with the load force snesor of the loading force for measuring loading device；The arm of force is installed in the bearing mounting disc to be measured, the arm of force connects moment of friction sensor.The utility model is exclusively used in thrust air hydrodynamic bearing test of bearing capacity, high certainty of measurement, easy to use.
Description
Technical field
The utility model is related to bearing testing device technical fields, and in particular to a kind of thrust air hydrodynamic bearing bearing capacity
Test device.
Background technology
Air hydrodynamic bearing is divided into radial air hydrodynamic bearing and thrust air hydrodynamic bearing, wherein radial air dynamic pressure
Bearing limits rotor radial displacement and undertakes from radial load, and thrust air hydrodynamic bearing limitation rotor axial displacement is simultaneously
It undertakes from axial load.Air hydrodynamic bearing due to it is good with high stability, be not easy locking, the accuracy of manufacture with assembly essence
Degree requires low advantage, has wide application prospects in high speed and ultrahigh speed rotation machinery.
Air hydrodynamic bearing at work, forms dynamic pressure air film between the rotor surface and bearing surface to run at high speed,
It is therefore eliminated with bearing surface by action pneumatic UF membrane rotor and contacts friction, but in rotor speed lower startup stage, rotating speed
It is not enough to form effective dynamic pressure air film, to make to cause in the presence of friction is contacted between rotor and bearing surface, staring torque is big, turns
Axis and working rotor surface wear.Available air hydrodynamic bearing needs have lower resistance of start square, enough anti-impacts in engineering
Ability and service life are hit, therefore the bearing capacity for how testing air hydrodynamic bearing becomes the weight for determining air hydrodynamic bearing performance
A step is wanted, but not yet occurs the test device specifically for air hydrodynamic bearing bearing capacity at present.
Utility model content
The utility model is directed to the prior art, provides a kind of high certainty of measurement, thrust air hydrodynamic axis easy to use
Hold test of bearing capacity device.
The utility model is achieved through the following technical solutions：The thrust air hydrodynamic bearing test of bearing capacity device, packet
It includes testboard and the loading device being from left to right sequentially coaxially mounted on testboard, rolling bearing, bearing mounting disc to be measured, wait for
Survey bearing, thrust button, high-speed electric expreess locomotive；The thrust button is mounted on high-speed electric expreess locomotive external part and forms matching pair, institute with bearing to be measured
It states bearing to be measured to be fixedly mounted in bearing mounting disc to be measured, the bearing mounting disc to be measured is mounted on the inner ring of rolling bearing
On.The one end of the rolling bearing far from bearing to be measured is equipped with the loading force sensing of the loading force for measuring loading device
Device；It is installed with and extends straight down and for transmitting the suffered friction of bearing mounting disc to be measured in the bearing mounting disc to be measured
The arm of force of power, the one end of the arm of force far from bearing mounting disc to be measured are equipped with rubbing for the moment of friction due to measuring arm of force transmission
Wipe torque sensor.
Further, the guide rail extended transversely is installed on the testboard；The loading device includes loading device
Seat, 4 along thrust piston axis circumferentially equally distributed loading spring and be connected on loading spring, the loading spring peace
In loading device seat, the thrust piston is pierced by loading device seat and loading force sensor contacts；The loading device seat
Lower section is equipped with the load sliding seat that can be horizontally slipped on guide rail, between adjusting load device and rolling bearing mounting base away from
From keeping amount of spring compression different, to adjust loading force size.
Further, it is also equipped with standing screw mounting base on the testboard, is provided in fixing screws mounting base solid
Determine screw rod, loading device seat lower part be equipped with the mutually matched threaded hole of standing screw, can fix loading device with it is to be measured
The distance between bearing mounting disc makes the loading force that bearing to be measured is subject to stablize.
Further, the rolling bearing is mounted on by pacifying rolling bearing mounting base on testboard.
Further, it is provided with bearing sliding seat below the rolling bearing mounting base, the bearing sliding seat can led
Horizontally slip, rolling bearing can be slided to the right on rail, convenient for bearing to be measured installation and remove, make bearing replacing side to be measured
Just, measurement efficiency is improved.
Further, the testboard includes the upper and lower, the loading device, high-speed electric expreess locomotive, rolling bearing, to be measured
Bearing is mounted on the upper layer of top, and the moment of friction sensor is mounted on by moment of friction sensor fixed seat
The lower layer of lower section, the arm of force extend downward into moment of friction sensor across upper layer.
The utility model compared with prior art, has the following advantages and advantageous effect：
（1）Thrust air hydrodynamic bearing test of bearing capacity device provided by the utility model uses test thrust air
The frictional force that hydrodynamic bearing is subject under the load of bearing capacity changes to measure the bearing capacity of bearing to be measured, measurement accuracy
Height, it is easy to use.
（2）The loading device of thrust air hydrodynamic bearing test of bearing capacity device provided by the utility model uses spring
Load, it is simple in structure, continuous loading force can be generated.
（3）Thrust air hydrodynamic bearing test of bearing capacity device provided by the utility model is also in rolling bearing mounting base
Lower section is equipped with load sliding seat, keeps bearing replacing to be measured convenient, improves measurement efficiency, is suitable for multiple and a large amount of bearings to be measured
Test of bearing capacity.
（4）Thrust air hydrodynamic bearing test of bearing capacity device provided by the utility model can be also used for it is specific
The moment of friction that the thrust air hydrodynamic bearing drunk is subject to.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model front view；
Fig. 3 is the utility model right view；
Fig. 4 is the utility model loading device, the arm of force, rolling bearing structure schematic diagram；
Fig. 5 is the utility model thrust button structural schematic diagram；
Fig. 6 is the utility model bearing mounting disc structural schematic diagram to be measured；
Fig. 7 is the utility model rolling bearing installation section view；
Fig. 8 is the utility model loading device sectional view；
Fig. 9 is the utility model structure standing screw structural schematic diagram；
1-testboard, 2-loading devices, 3-load force snesors, 4-rolling bearing mounting bases, 5-thrust buttons, 6-
High-speed electric expreess locomotive, 7-motor support bases, the 8-arm of forces, 9-moment of friction sensors, 10-moment of friction sensor fixed seats, 11-
Guide rail, 12-bearings to be measured, 13-standing screws, 14-standing screw mounting bases, 16-rolling bearings, 17-bearings to be measured
Mounting disc, 18-loading device seats, 19-loading springs, 20-thrust pistons, 21-load sliding seats, the sliding of 22-bearings
Seat.
Specific implementation mode
The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not
It is limited to this.
Embodiment 1
As shown in Fig. 1 ~ 6, the thrust air hydrodynamic bearing test of bearing capacity device, including testboard 1 and from left to right
Sequentially coaxially be mounted on testboard 1 on loading device 2, rolling bearing 16, bearing mounting disc 17 to be measured, bearing to be measured 12, only
Push-plate 5, high-speed electric expreess locomotive 6.The high-speed electric expreess locomotive 6 is fixed on by motor support base 7 on testboard 1.The thrust button 5 is mounted on height
6 external part of speed motor forms matching pair with bearing 12 to be measured.The bearing to be measured 12 is fixedly mounted on bearing mounting disc 17 to be measured
On, the bearing mounting disc 17 to be measured is mounted in the inner ring of rolling bearing 16, and the rolling bearing 16 is pacified by rolling bearing
Seat 4 is filled to be mounted on testboard 1.The one end of the rolling bearing 16 far from bearing 12 to be measured is equipped with for measuring loading device
The load force snesor 3 of 2 loading force.It is installed with and extends straight down and for passing in the bearing mounting disc 17 to be measured
The arm of force 8 of 17 friction of bearing mounting disc to be measured is passed, the one end of the arm of force 8 far from bearing mounting disc 17 to be measured is equipped with
Due to measuring the moment of friction sensor 9 for the frictional force that the arm of force 8 transmits, the moment of friction sensor 9 is passed by moment of friction
Sensor fixed seat 10 is mounted on testboard 1.The testboard 1 includes the upper and lower, the loading device 2, high-speed electric expreess locomotive
6, rolling bearing 16, bearing to be measured 12 are mounted on the upper layer of top, and the moment of friction sensor 9 is passed by moment of friction
Sensor fixed seat 10 is mounted on the lower layer of lower section, and the arm of force 8 extends downward into moment of friction sensor 9 across upper layer.
The loading device 2 is used to load bearing capacity to bearing 12 to be measured, and the load force snesor 3 is loaded for measuring
Device 2 is loaded into the loading force on bearing 12 to be measured.When measurement, bearing mounting disc 17 to be measured is fixed on rolling bearing 16,
Bearing 12 to be measured is fixedly mounted in bearing mounting disc 17 to be measured again, the bearing 12 to be measured can with bearing mounting disc 17 to be measured
It rotates synchronously.Since bearing mounting disc 17 to be measured is fixedly connected with ball bearing inner ring, bearing 12 to be measured and bearing to be measured is made to pacify
Sabot 17 can rotate.The arm of force 8 is fixed in bearing mounting disc 17 to be measured, and is rubbed what bearing mounting disc 17 to be measured was subject to
It wipes power and passes to moment of friction sensor 9 so that it can measure the moment of friction that its bearing 12 to be measured is born in rotation process.
The length of the arm of force 8 and the moment of friction that the moment of friction that moment of friction sensor 9 measures is that bearing 12 to be measured is born.
When the loading force that loading device 2 is loaded on bearing 12 to be measured reaches the utmost carrying ability of bearing 12 to be measured, bearing 12 to be measured by
To frictional force increase suddenly, the frictional force that moment of friction sensor 9 measures increases suddenly, at this point, load force snesor 3 on survey
The loading force obtained is the bearing capacity of bearing 12 to be measured.
The moment of friction sensor 9 is preferably piezoelectric transducer prepared by piezoelectric material.
The loading device 2 can be spring charging device or cylinder type loading device, and the cylinder type loading device is
Rolling bearing 16 is synchronized along axis circumferentially equally distributed air-leg using 4 and is loaded, 12 uniform force of bearing to be measured is made.
Embodiment 2
The present embodiment is improved on the basis of embodiment 1, is theed improvement is that：As shown in figure 8, the test
The guide rail 11 extended transversely is installed on platform 1；The loading device 2 includes that loading device seat 18,4 is circumferentially uniform along axis
The loading spring 19 of distribution and the thrust piston 20 being connected on loading spring 19, the loading spring 19 are mounted on loading device
In seat 18, the thrust piston 20 is pierced by loading device seat 18 and is contacted with load force snesor 3；18 lower section of the loading device seat
The load sliding seat 21 that can be horizontally slipped on guide rail 11 is installed.By sliding loading device seat 18 on guide rail 11, adjust
The distance between loading device 2 and tested thrust air hydrodynamic bearing mounting base make amount of spring compression difference that loading force be adjusted
Size.Meanwhile the guide rail 11 also allows for after the completion of test, by loading device 2 far from rolling bearing 16, is completed convenient for test
Thrust air hydrodynamic bearing remove the installation with bearing 12 to be measured, improve testing efficiency.
The guide rail 11 is preferably two-orbit setting, and the loading device seat 18 is crossed on two-orbit, makes its stability
More preferably.
Embodiment 3
The present embodiment is improved on the basis of embodiment 2, is theed improvement is that：As shown in Fig. 4,7, the rolling
4 lower section of dynamic bearing mounting base is also equipped with bearing sliding seat 22, and the bearing sliding seat 22 can horizontally slip on guide rail 11.It will
Loading device 2, rolling bearing 16, bearing mounting disc 17 to be measured, high-speed electric expreess locomotive 6, thrust button 5, moment of friction sensor 9, the arm of force 8
After the completion of being respectively mounted, bearing 12 to be measured is fixedly mounted in bearing mounting disc 17 to be measured, sliding bearing sliding seat 22 makes to be measured
Bearing 12 forms matching pair with thrust button 5, opens high-speed electric expreess locomotive 6, and sliding load sliding seat 21 makes thrust piston 20 and loading force
Sensor 3 contacts, and is loaded to bearing 12 to be measured, starts to test.After the completion of test, closing high-speed motor 6, successively sliding load is slided
Dynamic seat 21, bearing sliding seat 22 make loading device 2 and rolling bearing 16 successively far from high-speed electric expreess locomotive 6, remove and have completed to test
Thrust air hydrodynamic bearing, then next bearing to be measured 12 is installed, you can carry out next round test, improve testing efficiency, fit
The thrust air hydrodynamic bearing test of bearing capacity larger for quantity.
Embodiment 4
The present embodiment is improved on the basis of embodiment 1, is theed improvement is that：As shown in figure 9, the test
It is also equipped with standing screw mounting base 14 on platform 1, standing screw 13, the loading device are provided in standing screw mounting base 14
18 lower parts of seat are provided with and 13 mutually matched threaded hole of standing screw.The standing screw 13 can fix loading device 2 and wait for
The distance between bearing mounting disc 17 is surveyed, the loading force that bearing 12 to be measured is subject to is made to stablize.
Other parts are substantially the same manner as Example 1 in the present embodiment, therefore no longer repeat one by one.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the scope of protection of the utility model.
Claims (6)
1. thrust air hydrodynamic bearing test of bearing capacity device is used for bearing to be measured（12）Test of bearing capacity, it is characterised in that：
Including testboard（1）From left to right sequentially coaxially it is mounted on testboard（1）On loading device（2）, rolling bearing（16）, wait for
Survey bearing mounting disc（17）, thrust button（5）, high-speed electric expreess locomotive（6）；The thrust button（5）Mounted on high-speed electric expreess locomotive（6）External part with
Bearing to be measured（12）Form matching pair, the bearing mounting disc to be measured（17）Mounted on rolling bearing（16）Inner ring on, it is described
Bearing to be measured（12）It is fixedly mounted on bearing mounting disc to be measured（17）On, the rolling bearing（16）Far from bearing to be measured（12）'s
One end is equipped with for measuring loading device（2）Loading force load force snesor（3）；The bearing mounting disc to be measured（17）
On be installed with and extend straight down and for transmitting bearing mounting disc to be measured（17）The arm of force of friction（8）, described
The arm of force（8）Far from bearing mounting disc to be measured（17）One end moment of friction sensor is installed（9）.
2. thrust air hydrodynamic bearing test of bearing capacity device according to claim 1, it is characterised in that：The testboard
（1）On the guide rail extended transversely is installed（11）；The loading device（2）Including loading device seat（18）, 4 along axis week
To equally distributed loading spring（19）Be connected to loading spring（19）On thrust piston（20）, the loading spring（19）
Mounted on loading device seat（18）It is interior, the thrust piston（20）It is pierced by loading device seat（18）With load force snesor（3）It connects
It touches；The loading device seat（18）Lower section is equipped with can be in guide rail（11）On the load sliding seat that horizontally slips（21）.
3. thrust air hydrodynamic bearing test of bearing capacity device according to claim 2, it is characterised in that：The testboard
（1）On be also equipped with standing screw mounting base（14）, standing screw mounting base（14）On be provided with standing screw（13）, described to add
Carry erection seat（18）Lower part is provided with and standing screw（13）Mutually matched threaded hole.
4. thrust air hydrodynamic bearing test of bearing capacity device according to claim 2, it is characterised in that：The axis of rolling
It holds（16）Pass through rolling bearing mounting base（4）Mounted on testboard（1）On.
5. thrust air hydrodynamic bearing test of bearing capacity device according to claim 4, it is characterised in that：The axis of rolling
Hold mounting base（4）Lower section is provided with bearing sliding seat（22）, the bearing sliding seat（22）It can be in guide rail（11）On horizontally slip.
6. according to claim 1 ~ 5 any one of them thrust air hydrodynamic bearing test of bearing capacity device, it is characterised in that：Institute
State testboard（1）Including the upper and lower, the loading device（2）, high-speed electric expreess locomotive（6）, rolling bearing（16）, bearing to be measured
（12）It is mounted on the upper layer of top, the moment of friction sensor（9）Pass through moment of friction sensor fixed seat（10）Peace
Mounted in underlying lower layer, the arm of force（8）Moment of friction sensor is extended downward into across upper layer（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820387440.0U CN207923451U (en) | 2018-03-21 | 2018-03-21 | Thrust air hydrodynamic bearing test of bearing capacity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820387440.0U CN207923451U (en) | 2018-03-21 | 2018-03-21 | Thrust air hydrodynamic bearing test of bearing capacity device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207923451U true CN207923451U (en) | 2018-09-28 |
Family
ID=63596055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820387440.0U Active CN207923451U (en) | 2018-03-21 | 2018-03-21 | Thrust air hydrodynamic bearing test of bearing capacity device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207923451U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165838A (en) * | 2019-04-11 | 2019-08-23 | 广东省智能制造研究所 | A kind of moment of elasticity control device |
| CN110346137A (en) * | 2019-06-20 | 2019-10-18 | 杭州电子科技大学 | Automatic continuous dynamic loading method for the test of air-floating ball bearing bearer properties |
| CN114486247A (en) * | 2020-11-12 | 2022-05-13 | 中国科学院理化技术研究所 | Testing arrangement and turbo expander |
| CN114608744A (en) * | 2022-03-07 | 2022-06-10 | 北京理工大学 | Bearing capacity calibration system for dynamic pressure thrust gas bearing |
-
2018
- 2018-03-21 CN CN201820387440.0U patent/CN207923451U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165838A (en) * | 2019-04-11 | 2019-08-23 | 广东省智能制造研究所 | A kind of moment of elasticity control device |
| CN110346137A (en) * | 2019-06-20 | 2019-10-18 | 杭州电子科技大学 | Automatic continuous dynamic loading method for the test of air-floating ball bearing bearer properties |
| CN114486247A (en) * | 2020-11-12 | 2022-05-13 | 中国科学院理化技术研究所 | Testing arrangement and turbo expander |
| CN114608744A (en) * | 2022-03-07 | 2022-06-10 | 北京理工大学 | Bearing capacity calibration system for dynamic pressure thrust gas bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191203 Address after: The 618000 Deyang province Sichuan City Jingyang District Jiangxi Road No. four Building No. 11 Co-patentee after: Inst. of Machinery Mfg Technology, Chinese Academy of Engineering Physics Patentee after: Sichuan nine far Air Floatation Technology Co., Ltd. Address before: The 618000 Deyang province Sichuan City Jingyang District Jiangxi Road No. four Building No. 11 Patentee before: Sichuan nine far Air Floatation Technology Co., Ltd. |