CN104613878B - A kind of Novel wire contacts photoelastic stream experimental provision - Google Patents
A kind of Novel wire contacts photoelastic stream experimental provision Download PDFInfo
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- CN104613878B CN104613878B CN201510001958.7A CN201510001958A CN104613878B CN 104613878 B CN104613878 B CN 104613878B CN 201510001958 A CN201510001958 A CN 201510001958A CN 104613878 B CN104613878 B CN 104613878B
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- roller
- annulus glass
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- lever
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Abstract
A kind of roller bullet stream measuring of oil film device is disclosed.Bullet stream film shape, the thickness of crowned roller, including frame (6), transmission mechanism (8), pressing mechanism are measured by optical interferometry.Motor (10) is through shaft coupling (9), transmission mechanism (8), drive annulus glass (5) rotation in frame (6), frame (6) one end is supported (4) by thrust bearing, and the other end is pretension governor motion (7)；Pressing mechanism is roller (3) lever (2), roller (14) is kept to be contacted with lowest part on the inside of annulus glass (5), load (1) is loaded by pressing mechanism and roller (14) to annulus glass (5)；It is microscope (12) below annulus glass (5), light source (3) projects light through microscope (12) to roller (14) and annulus glass (5) contact position, and interference pattern is handled by data collecting system (11).Advantage:It is simple in construction, high speed, heavy duty are easily realized, convex and the bullet stream oil film of convexity amount can be surveyed.
Description
Technical field
The present invention relates to cylindrical roller friction pair dynamic oil film thickness under ehl status during measurement high-speed overload
And its technical field of shape.
Background technology
The oil film of the secondary contact zone of roller frictional is measured using optical interferometry, film shape thickness can be obtained simultaneously, is still bullet
Flow the important means of lubrication base research.Although thickness resolution ratio is limited by optical source wavelength, measurement accuracy is quite satisfied
's.As the most effective method of testing of thickness, the measuring accuracy of Optical interference techniques has reached 1 ran.Traditional experiment platform master
If being carried out to the short roller of ball or Elliptical Ratio very little with gyration, loaded by the disk of a rotation with the ball of rotation
After produce elastohydrodynamic lubrication, can observe ehl status through the glass plate of plated film.Due to design method, tradition
Testing stand can not eliminate the distance between supporting-point and pressure spot, and keep contact position Entrainment Velocity height, testing stand operation flat
Surely, it should just take supporting-point and the distance between pressure spot larger, so as to cause transparent material to bear moment of flexure, bear high tensile stress work
With so that transparent material is easily broken off and is difficult to bear larger load.For having limit for length's roller frictional pair, mainly see
Influence of the profiled rollers to elastohydrodynamic lubrication dynamic oil film is examined, the deflection of linear contact lay and high contact stress need fully loaded transportation condition real
It is existing.
Optical interferometry has been applied successfully in a contact measuring lubricating oil film, relation line contact roller friction pair bullet stream
Experimental study is seldom, and linear reciprocating testing stand can only operate in low speed, and for high-speed overload elasto-hydrodynamic lubrication for line contacts
Film shape film thickness measuring is not reported so far.
The content of the invention
The invention aims to make up the experimental provision of the photoelastic stream measuring lubricating oil film of linear contact lay, it is possible to achieve cylinder
Roller is operated under high speed, heavy condition can measure the elastohydrodynamic lubrication oil film thickness of various convexs, convexity amount roller there is provided a kind of
The experimental provision of degree and shape.
The present invention is to provide what following technical scheme was realized：One kind is under high speed, severe duty, with roller floating support
Pure rolling linear contact lay measuring lubricating oil film testing stand, the secondary middle part of roller frictional, particularly end under the conditions of measurement elastohydrodynamic lubrication
Oil film thickness and its shape in different convexs, convexity amount repairing type.It is characterized as：1. transparent material is an annulus, around it during experiment
Central axis.2. measured piece is cylindrical roller, as linear contact lay.3. heavy load, full payload amount can reach more than 3000N.
4. roller floating support, it is ensured that roller is contacted with transparent ring in extreme lower position, and makees pure rolling along along roller radial section.It is excellent
Point：Simple in construction, high-speed working condition is easily realized in heavy duty, and can measure to play has limit for length's roller, particularly its end under stream mode
Dynamic oil film thickness and shape.
Brief description of the drawings
Fig. 1 show measurement apparatus overall schematic；
Fig. 2 show floating roller operating diagram；
Embodiment
In order that present disclosure, purpose and operation order when using easily more clearly are understood, below
With reference to drawings and Examples, the present invention is described in more detail.
The invention provides a kind of experimental provision of dynamic oil film during measurement cylindrical roller pure rolling elastohydrodynamic lubrication, such as Fig. 1
It is shown, including servomotor (10), shaft coupling (9), transmission mechanism (8), pretension governor motion (7), experiment frame (6), transparent
Glass ring (5), end surface supporting (4), floating roller (3), loading lever (2), load (1), data acquisition and procession device (11),
Microscope (12), light source (13), test specimen roller (14), and for assembling bolt and nut and latch used in fixing.Wherein such as
Include loading lever (2), floating roller (3), clear glass ring (5), test specimen roller (14) shown in Fig. 2.
Claims (2)
1. the experimental provision of dynamic oil film during a kind of measurement cylindrical roller pure rolling elastohydrodynamic lubrication, including experiment frame (6), servo
Motor (10), transmission mechanism (8), pretension governor motion (7), floating pressing mechanism, optical measuring system；The servomotor
(10) horizontal setting is driven in experiment frame (6) by shaft coupling (9), transmission mechanism (8), pretension governor motion (7)
Annulus glass (5) rotate, experiment frame (6) one end be thrust bearing end surface supporting (4), the other end be pretension tune
Save mechanism (7)；The floating pressing mechanism is roller (3) lever (2) formula, keeps test specimen roller (14) and annulus glass (5)
Inner side is contacted in lowest part, and load (1) is added by floating pressing mechanism and test specimen roller (14) to the annulus glass (5) pressure
Carry；The optical measuring system is one microscope (12) of lower section fixed in position in annulus glass (5), what light source (13) was projected
Light is through microscope (12) to test specimen roller (14) and annulus glass (5) contact position, and the reflected light of contact position returns to micro- again
Mirror (12), is obtained after interference image through computer data acquisition system (11) processing.
2. the experimental provision of dynamic oil film during cylindrical roller pure rolling elastohydrodynamic lubrication according to claim 1, its feature exists
It is in the floating pressing mechanism：Two small rolling bearing inner rings are respectively and fixedly installed to two fixations parallel to lever (2)
Roller (3) is constituted on axle, two fixing axles are located at the lower section of lever axis, using lever axis as the central shaft of roller (3), roller
Can be around lever rotation, the outer ring of two small rolling bearings is at a distance of 2-5mm, the axis of two fixing axles and the annulus glass
(5), test specimen roller (14) center line, the axis of lever (2) are parallel to each other, with annulus glass (5) rotary motion tangential direction phase
Vertically, two small housing washers of test specimen roller (14) and roller (3) are in rolling contact, and are crushed on annulus glass inner ring most
Lower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001958.7A CN104613878B (en) | 2015-01-05 | 2015-01-05 | A kind of Novel wire contacts photoelastic stream experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001958.7A CN104613878B (en) | 2015-01-05 | 2015-01-05 | A kind of Novel wire contacts photoelastic stream experimental provision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104613878A CN104613878A (en) | 2015-05-13 |
| CN104613878B true CN104613878B (en) | 2017-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510001958.7A Expired - Fee Related CN104613878B (en) | 2015-01-05 | 2015-01-05 | A kind of Novel wire contacts photoelastic stream experimental provision |
Country Status (1)
| Country | Link |
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| CN (1) | CN104613878B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300822B (en) * | 2015-10-14 | 2018-09-07 | 青岛理工大学 | Zero-entrainment friction and wear testing machine |
| CN105466486B (en) * | 2015-11-17 | 2018-01-16 | 武汉科技大学 | A kind of elastohydrodynamic lubrication testing machine |
| CN106323180A (en) * | 2016-09-26 | 2017-01-11 | 常州大学 | High-speed heavy-load roller optical elastic-hydrodynamic oil film measuring device |
| CN106767460A (en) * | 2017-02-16 | 2017-05-31 | 常州大学 | Interference of light linear contact lay measuring of oil film machine |
| CN109186473B (en) * | 2018-09-06 | 2020-07-24 | 常州大学 | Device for testing oil film thickness and oil film dragging coefficient of roller friction pair under sliding and rolling working conditions |
| CN109187188B (en) * | 2018-09-30 | 2020-12-01 | 常州大学 | Circular ring type photoelastic flow oil film measuring and testing machine |
| CN110274547B (en) * | 2019-07-18 | 2020-12-22 | 东华大学 | Bidirectional speed point contact photoelastic flow test bed |
| CN111351444A (en) * | 2020-04-07 | 2020-06-30 | 青岛科技大学 | Synchronous belt slide block reciprocating motion type line contact elastohydrodynamic lubricating oil film measuring device |
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| CN101514889A (en) * | 2009-03-26 | 2009-08-26 | 上海大学 | Multi-scale test machine for measuring lubricating oil film by optical interference method |
| JP2009281970A (en) * | 2008-05-26 | 2009-12-03 | Ihi Corp | Film thickness measuring device and method |
| CN201764949U (en) * | 2010-06-10 | 2011-03-16 | 常州大学 | Equipment for measuring reloaded optic elastohydrodynamic oil film |
| CN103234470A (en) * | 2013-05-02 | 2013-08-07 | 北京理工大学 | Equivalent experimental simulation device of tapered roller lubrication conditions and measurement method |
| CN103852016A (en) * | 2012-12-05 | 2014-06-11 | 常州大学 | Deflective roller friction pair lubricating oil film measurement experiment table |
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2015
- 2015-01-05 CN CN201510001958.7A patent/CN104613878B/en not_active Expired - Fee Related
Patent Citations (5)
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|---|---|---|---|---|
| JP2009281970A (en) * | 2008-05-26 | 2009-12-03 | Ihi Corp | Film thickness measuring device and method |
| CN101514889A (en) * | 2009-03-26 | 2009-08-26 | 上海大学 | Multi-scale test machine for measuring lubricating oil film by optical interference method |
| CN201764949U (en) * | 2010-06-10 | 2011-03-16 | 常州大学 | Equipment for measuring reloaded optic elastohydrodynamic oil film |
| CN103852016A (en) * | 2012-12-05 | 2014-06-11 | 常州大学 | Deflective roller friction pair lubricating oil film measurement experiment table |
| CN103234470A (en) * | 2013-05-02 | 2013-08-07 | 北京理工大学 | Equivalent experimental simulation device of tapered roller lubrication conditions and measurement method |
Non-Patent Citations (1)
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| 变速多尺度润滑油膜测量试验机设计;华同曙等;《润滑与密封》;20100331;全文 * |
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| CN104613878A (en) | 2015-05-13 |
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Granted publication date: 20170908 Termination date: 20220105 |