CN204422369U - A kind of resin flux that plays lubricates light interference device - Google Patents

A kind of resin flux that plays lubricates light interference device Download PDF

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Publication number
CN204422369U
CN204422369U CN201520114591.5U CN201520114591U CN204422369U CN 204422369 U CN204422369 U CN 204422369U CN 201520114591 U CN201520114591 U CN 201520114591U CN 204422369 U CN204422369 U CN 204422369U
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China
Prior art keywords
lever
glass disc
lubrication
light interference
plays
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Expired - Fee Related
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CN201520114591.5U
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Chinese (zh)
Inventor
陈英俊
赵晶英
项顺伯
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Guangdong University of Petrochemical Technology
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Guangdong University of Petrochemical Technology
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Priority to CN201520114591.5U priority Critical patent/CN204422369U/en
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Abstract

A kind of resin flux that plays lubricates light interference device, comprise stand (14), Halogen lamp LED (1) is comprised successively along optical path direction, optical fiber (2), microscope (3), glass disc (4), steel ball (5), industrial camera (6) and computing machine (7), chromium film is coated with below glass disc, steel ball and glass disc form point cantact friction pair under the effect of lever (8), wherein, steel ball central punch wears axle, axle two ends are connected to miniature deep groove ball bearing respectively, miniature deep groove ball bearing is separately fixed on oil groove (9), oil groove is connected with lever one end, glass disc connects servomotor (12) by its central shaft.The utility model can carry out the test of the railway grease of non-newtonian flow volume property, have motion flexibly, good, the measurement sensitivity high of dynamic property.

Description

A kind of resin flux that plays lubricates light interference device
Technical field
The utility model relates to the test unit of railway grease, and a kind of resin flux that plays lubricates light interference device specifically.
Background technology
Railway grease is usually used in rolling bearing, plays the effects such as lubrication, wear-resistant, sealing within the bearing.In rolling bearing, the contact of roller or ball and raceway belongs to linear contact lay or point cantact, due to the effect of friction pair centre-point load, the pressure of contact region is very high, the elastic deformation of surface in contact and the pressure viscous effect of lubricant have material impact to lubrication, and its lubricating status often belongs to elastohydrodynamic lubrication.Contact stress between the interface of elastohydrodynamic lubrication reaches more than 700Mpa usually, and the thickness of lubricating film is between 0.1 ~ 1 um, and because contact area is little, contact width is hundreds of normally uwithin m, so be more difficult technically to the test of elastohydrodynamic lubrication.
Railway grease has unique rheological, and in most cases for being similar to the material of solid, its rheological is mainly summarized as shear thinning, has yield shear stress and thixotropy.Shear thinning represents that railway grease belongs to non-Newtonian fluid, and its viscosity changes along with shearing rate and changes; Yield shear stress represents that railway grease works as shear stress when being less than yield shear stress, shows solid property; Thixotropy represents that the viscosity of railway grease can reduce along with the prolongation of shear time, can partly recover again after stopping shearing.So general grease lubrication state is a dynamic change procedure.
The rheological of the little and railway grease uniqueness of the contact area due to elastohydrodynamic lubrication, so the test playing resin flux lubrication is more complicated.The Elastic fluid lubrication theory of lubricating oil and measuring technology development relative maturity, and people are current also in continuous research with in exploring to bullet resin flux lubrication.Optical interferometry technology is engineering optics theory widespread use and more successful a kind of technology in elastohydrodynamic lubrication research.But general people are research and a kind of like this medium being commonly considered as Newtonian fluid of test lubricating oil, its lubricating status is generally stable, want dynamic studies and test to play resin flux lubrication and then must make improvement to prior art, overcome the unique rheology such as the non-Newtonianism of railway grease on test impact, make test feasible, test findings is credible.
Summary of the invention
The purpose of this utility model is, provides a kind of and plays resin flux lubrication light interference device, to study greasy property and the mechanism of non-Newtonian fluid.
The technical solution of the utility model is as follows:
A kind of resin flux that plays lubricates light interference device, comprise stand, comprise Halogen lamp LED, optical fiber, microscope, glass disc, steel ball, industrial camera and computing machine successively along optical path direction, be coated with chromium film below glass disc, steel ball and glass disc form point cantact friction pair under the effect of lever, wherein, steel ball central punch wears axle, and axle two ends are connected to miniature bearing respectively, and miniature bearing is separately fixed on oil groove, oil groove is fixed on lever one end, and glass disc connects servomotor by its central shaft.
The light of Halogen lamp LED is input in described microscope by optical fiber, and light is glass disc and steel ball described in vertical incidence after the built-in dichroic mirror of microscope; Be coated with chromium film below glass disc, some light reflects on chromium film, and partial penetration chromium film reflects on the smooth finish surface of steel ball, and the intensity of two bundle reflection rays is basically identical, forms light interference phenomena.After light interference phenomena amplifies by microscope, light signal is sent into described industrial camera, described industrial camera in-built CCD imageing sensor and high frame rate image processor, by USB interface, data image signal is sent in computing machine, Real time vision image and interference image can be stored as single picture, continuous print sequence of pictures or video.
Microscope is fixed on can be done on the micromotion platform of three the rectangular coordinate direction of principal axis adjustment in top to bottom, left and right, front and rear for it.Be convenient to adjust its position, make light aim at friction pair contact region, and shape library.Microscope band enlargement factor control hand wheel, regulates enlargement factor can regulate field range size; Described microscope band standard C lens interface, is connected with industrial camera by standard C lens interface.
Lever is connected with oil groove by the inner ring of angular contact bearing, and outer ring is connected with lever, and installation direction is downward to load direction for bearing larger one-way shaft.Described lever, at the other end away from oil groove, is set with the load that can move and change, with the screw for fixed load in load.
Servomotor, by servo driver drives, can read current servo motor speed in real time from servo-driver; Servomotor is connected by spring coupling with the axle at glass disc place, and the rotating speed of servomotor is exactly the rotating speed of glass disc; The control signal of servo-driver is by PLC(programmable logic controller (PLC)) produce, PLC can control the permanent rotary speed movement of servomotor, the acceleration of specific Acceleration and deceleration time or retarded motion; The program of PLC is by computer input and download in PLC.
After glass disc is driven by servomotor, frictionally drives the steel ball synchronous axial system contacted with glass disc, and glass disc and steel ball form the point cantact friction pair of pure rolling, the rotation direction of steel ball and the consistent all the time of glass disc; While steel ball rotates, carry the secondary contact region of railway grease engaging friction.
The utility model is owing to have employed oil groove and the lever of above-mentioned design, making to install superincumbent steel ball rotates flexibly, it is pure rolling between steel ball and glass disc, and have employed PLC as motion controller, the control of servomotor speed change degree can be carried out, have employed high frame per second, can the industrial camera of direct output digital image signal, make device can carry out the dynamic test of the elastohydrodynamic lubrication of the railway grease of non-Newtonian fluid, for the Lubrication Design of the development of railway grease, test and the research of the lubrication mechanism in rolling bearing thereof, rolling bearing provides a kind of effective means.The utility model have motion flexibly, good, the measurement sensitivity high of dynamic property.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is lever construction schematic diagram of the present utility model.
Fig. 3 is the cut-open view of oil groove part of the present utility model.
Embodiment
Below with reference to accompanying drawing, described in detail embodiment of the present utility model, described specific embodiment, only in order to explain the utility model, is not intended to limit embodiment of the present utility model.
The one bullet resin flux lubrication light interference device that the utility model provides, comprise stand 14, four legs of stand are respectively with 1 foot bolt, be convenient to adjust the extension elongation of foot bolt thus the horizontality of adjustment stand, Halogen lamp LED 1 is comprised successively along optical path direction, optical fiber 2, microscope 3, glass disc 4, steel ball 5, industrial camera 6 and computing machine 7, chromium film is coated with below glass disc 4, steel ball 5 and glass disc 4 form point cantact friction pair under the effect of lever 8, wherein, steel ball 5 central punch wears axle, axle two ends are connected to miniature deep groove ball bearing 17 respectively, miniature deep groove ball bearing 17 is separately fixed on oil groove 9, oil groove 9 is connected with lever 8 one end, glass disc 4 connects servomotor 12 by its central shaft.Microscope 3 is fixed on can be done on the micromotion platform 13 of three the rectangular coordinate direction of principal axis adjustment in top to bottom, left and right, front and rear for it.Lever 8 is connected with oil groove 9 by the inner ring of angular contact bearing 20, and outer ring is connected with lever 8.Lever 8, at the other end away from oil groove 9, is set with the load 15 that can move and change, with the screw for fixed load in load 15.Lever 8 is arranged on stand 14 by the bearing seat 16 as fulcrum.Lever 8 center is with groove, and bearing seat 16 can the slide block 19 of movement in groove be connected with lever 8 by one.
As shown in Figure 1, the light of Halogen lamp LED 1 is input in microscope 3 by optical fiber 2; The below of microscope 3 is steel balls 5, light input microscope after after inner dichroic mirror vertical incidence glass disc 4 and steel ball 5; The below of glass disc 4 is coated with chromium film, and the reflected light of light on chromium film and steel ball 5 smooth finish surface defines light interference phenomena; Optical interference picture is amplified by microscope 3, picture signal enters the ccd image sensor of industrial camera 6, industrial camera 6 output digital image signal is in computing machine 7, and the striped in analysis optical interference picture and the level time of interference can play the performance of resin flux lubrication, as the thickness, pressure etc. of lubricating film.
As shown in Figure 1, the axle of glass disc 4 is connected by spring coupling with the axle of servomotor 12, and the rotating speed of servomotor 12 is exactly the rotating speed of glass disc 4; Servomotor 12 is with servo-driver 11, the control signal of servo-driver is produced by programmable logic controller (PLC) 10, the program of programmable logic controller (PLC) 10 downloads input by computing machine 7, download to programmable logic controller (PLC) 10 and after moving, the acceleration or deceleration motion of the permanent rotating speed of servomotor 12 and specific Acceleration and deceleration time can be controlled.
As shown in Figure 1, steel ball 5 contacts with glass disc 4 and forms point cantact friction pair under the effect of lever 8, and steel ball 5 is housed in oil groove 9, simultaneously repack with grease 19 inside oil groove 9.
As shown in Figure 1, microscope 3 is arranged on micromotion platform 13, and the light that the handle on adjustment micromotion platform can make microscope 3 export, just to friction pair contact region, makes the visual field of microscope 3 be friction pair contact region.
As shown in Figure 1, micromotion platform 13, glass disc 4, lever 8, servomotor 12 are installed on stand 14.
As shown in Figure 2, the left end of lever 8 connects oil groove 9, and the top of oil groove 9 is provided with two miniature deep groove ball bearings 17, and the central shaft of steel ball 5 passes the inner ring of miniature deep groove ball bearing 17, and oil groove 9 is with the inclined-plane paralleled with steel ball 5 central axis; The other end of lever 8 is provided with the load 15 of adjustable position and replacing, has groove in the middle part of lever 8, is connected with bearing seat 16 by slide block 18, the distance at adjustment slide block 18 position changeable levers support point opposing levers about 8 two ends in the trench.
As shown in Figure 3, oil groove 9 is connected by angular contact bearing 20 with lever 8, steel ball 5 by above-mentioned miniature deep groove ball bearing and central shaft unsettled above oil groove 9, splendid attire railway grease 19 to be measured in oil groove 9, the partial volume of steel ball 5 is immersed in railway grease 19.
The utility model is owing to have employed oil groove 9 and the lever 8 of described design, servomotor 12 is controlled with programmable logic controller (PLC) 10, optical interference picture is gathered with the industrial camera 6 of high frame per second, ensure that the direction of motion of steel ball 5 is consistent with the direction of motion of glass disc 4 all the time, frictional property between steel ball 5 and glass disc 4 is rolling friction, provide the control ability of speed change degree, the greasy property data of dynamic change can be gathered, be applicable to the elastohydrodynamic lubrication test of non-Newtonian fluid railway grease.
Should be understood that; the foregoing is only preferred embodiment of the present utility model; be not sufficient to limit the technical solution of the utility model; for those of ordinary skills; within spirit of the present utility model and principle; can be increased and decreased according to the above description, replaced, converted or improved, and all these increases and decreases, replacement, conversion or the technical scheme after improving, all should belong to the protection domain of the utility model claims.

Claims (7)

1. one kind plays resin flux lubrication light interference device, comprise stand (14), it is characterized in that, Halogen lamp LED (1) is comprised successively along optical path direction, optical fiber (2), microscope (3), glass disc (4), steel ball (5), industrial camera (6) and computing machine (7), glass disc (4) below is coated with chromium film, steel ball (5) and glass disc (4) form point cantact friction pair under the effect of lever (8), wherein, steel ball (5) central punch wears axle, axle two ends are connected to miniature deep groove ball bearing (17) respectively, miniature deep groove ball bearing (17) is separately fixed on oil groove (9), oil groove (9) is connected with lever (8) one end, glass disc (4) connects servomotor (12) by its central shaft.
2. one according to claim 1 plays resin flux lubrication light interference device, it is characterized in that, microscope (3) is fixed on can be done on the micromotion platform (13) of three the rectangular coordinate direction of principal axis adjustment in top to bottom, left and right, front and rear for it.
3. one according to claim 1 plays resin flux lubrication light interference device, and it is characterized in that, lever (8) is connected with oil groove (9) by the inner ring of angular contact bearing (20), and outer ring is connected with lever (8).
4. the one bullet resin flux lubrication light interference device according to claim 1 or 3, it is characterized in that, lever (8), at the other end away from oil groove (9), is set with the load (15) that can move and change, with the screw for fixed load in load (15).
5. one according to claim 1 plays resin flux lubrication light interference device, and it is characterized in that, lever (8) is arranged on stand (14) by the bearing seat (16) as fulcrum.
6. one according to claim 5 plays resin flux lubrication light interference device, it is characterized in that, lever (8) center is with groove, and bearing seat (16) can the slide block (18) of movement in groove be connected with lever (8) by one.
7. one according to claim 1 plays resin flux lubrication light interference device, and it is characterized in that, four legs of stand (14) are respectively with 1 foot bolt.
CN201520114591.5U 2015-02-17 2015-02-17 A kind of resin flux that plays lubricates light interference device Expired - Fee Related CN204422369U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520114591.5U CN204422369U (en) 2015-02-17 2015-02-17 A kind of resin flux that plays lubricates light interference device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520114591.5U CN204422369U (en) 2015-02-17 2015-02-17 A kind of resin flux that plays lubricates light interference device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865325A (en) * 2016-04-02 2016-08-17 上海大学 Distance-adjustable double interference image microscopic instrument
CN109186472A (en) * 2018-09-03 2019-01-11 宁波工程学院 The measuring device of point contact lubricating oil film under a kind of electric field environment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865325A (en) * 2016-04-02 2016-08-17 上海大学 Distance-adjustable double interference image microscopic instrument
CN105865325B (en) * 2016-04-02 2018-10-23 上海大学 Double interference image frequency microscopes adjustable in pitch
CN109186472A (en) * 2018-09-03 2019-01-11 宁波工程学院 The measuring device of point contact lubricating oil film under a kind of electric field environment

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150624

Termination date: 20160217

CF01 Termination of patent right due to non-payment of annual fee