CN107449380A - A kind of ball bearing oil film thickness measurement apparatus - Google Patents
A kind of ball bearing oil film thickness measurement apparatus Download PDFInfo
- Publication number
- CN107449380A CN107449380A CN201710794113.7A CN201710794113A CN107449380A CN 107449380 A CN107449380 A CN 107449380A CN 201710794113 A CN201710794113 A CN 201710794113A CN 107449380 A CN107449380 A CN 107449380A
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- China
- Prior art keywords
- inner ring
- bearing
- oil film
- spin
- rolling element
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
- G01B17/025—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness for measuring thickness of coating
Abstract
A kind of ball bearing oil film thickness measurement apparatus, include axis system, micro-ultrasonic wave sensor and nozzle support system, rolling element spin system for regulating angle and loading and pressure detecting system；Micro-ultrasonic wave sensor is placed in the form of inner ring drives annular groove, the oil film thickness at inner ring diverse location is measured.On the other hand, change inner ring and roller surface roughness, or increase pit in inner ring outer surface, stripe, it is latticed to wait various forms texture, the inner ring and spin combined using different materials, under the different contact condition and spin states of rolling element for simulating bearing, study contact zone surface quality, rolling element spin states and spin form the influence of effect with interior loop material to oil film, this experimental provision is spin and raceway in different materials, different surfaces quality, difference contact provides a kind of new approaches with oil film thickness measurement under spin states, experimental result, which contacts the improvement on surface and design to rolling bearing, has certain directive significance.
Description
Technical field
The invention belongs to rolling bearing lubrication technical field, more particularly to a kind of ball bearing oil film thickness measurement apparatus.
Background technology
Rolling bearing has a variety of lubricating systems, such as oil jet lubrication, oil-air lubrication, and its common feature is by rolling element
Certain thickness lubricating oil film is formed between the component such as bearing internal external circle, reduces contact zone frictional heating, ensures that bearing is good
Running status.If insufficient lubrication causes to be difficult to oil film or rupture of oil film, Bearing inner fretting wear aggravation, heat amount is drastically
Increase, largely effects on bearing military service performance and service life.Therefore, the monitoring skill of service condition lower bearing contact zone oil film characteristic
Art is most important.Because bearing interior space is narrow and small, it is difficult to carry out direct measurement to oil film thickness.Rolling bearing inner ring material,
The meeting pair such as inner peripheral surface pattern and texture, the relative motion of spin material and surface roughness and ball and inner ring and contact condition
Lubricating oil flow, rapidly enter bear inner ring grooved railway, contact zone film forming characteristics produces certain influence, therefore necessary development bearing
The research of oil film on-Line Monitor Device and method.
The content of the invention
The defects of in order to overcome above-mentioned prior art, it is an object of the invention to provide a kind of measurement of ball bearing oil film thickness
Apparatus and method, contacted and oil film under spin states with texture, difference in different materials, different surface morphology with raceway for spin
Thickness measure provides a kind of new approaches, and experimental result, which contacts the improvement on surface and design to rolling bearing, has certain guidance
Meaning.
To achieve these goals, the technical scheme is that：
A kind of ball bearing oil film thickness measurement apparatus, include axis system, micro-ultrasonic wave sensor and nozzle support system
System, rolling element spin system for regulating angle and loading and pressure detecting system；
Described axis system includes main shaft 15, and main shaft 15 is connected with servomotor 20 by plum blossom yielding coupling 19,
Main shaft 15 is supported by the inner bearing of Left hand bearing block 1 and the inner bearing of right side bearing block 16, the inner bearing of right side bearing block 16
Positioned by bearing cover 17, the fluting inner ring 5 on main shaft 15 is positioned by left side axle sleeve 4, and left side axle sleeve 4 is locked using axle
Tight nut 2 positions；
Described micro-ultrasonic wave sensor is micro- in the fluting groove of inner ring 5 including being arranged on demand with nozzle support system
Type ultrasonic sensor 6, micro-ultrasonic wave sensor 6 are fixed by connecting rod, in the hole on connecting rod insertion sensor support base 3, are passed
Fixed nozzle support 9 on sensor bearing 3, nozzle is inserted with nozzle holder 9, and sensor support base 3 is separated from each other with main shaft 15；
Described rolling element spin system for regulating angle includes the connecting rod rolling element 13 contacted with fluting inner ring 5, connecting rod rolling
The other end connection sliding block 14 of kinetoplast 13, sliding block 14 move on arc guide rail 8；
Described loading includes the loading device 10 being arranged in circular arc 8, loading device 10 with pressure detecting system
By loading the body contacts of roller 12 and connecting rod rolling element 13, the top of loading roller 12 is provided with pressure sensor 11.
Fluting inner ring 5 outer surface has different roughness and the ring channel structures of texture characteristic, inner ring outer surface
For standard rolling bearing inner ring macro-size.
The bearing fluting inner ring 5 of the present invention is one group of different materials, tool through over mechanical processing and surface specially treated
There is the bearing inner race of different surface roughness and different surfaces texture, the groove opened, which is used to place, to be used to measure the micro- of oil film thickness
Type ultrasonic sensor, the outer surface macro-size of the bearing inner race by surface specially treated are processed according to standard rolling bearing, are
The standard size of deep groove ball bearing inner ring or angular contact ball bearing inner ring etc., the connecting rod rolling element 13 on inner ring is corresponding size
Spin.
Secondly micro-ultrasonic wave sensor is placed in the groove of fluting inner ring, micro-ultrasonic wave sensor and distribution is located all the time
In inactive state, and then the measurement of oil film thickness can be carried out under the conditions of bearing real-world operation is simulated, improve device stability
With reliability, the complexity of device is significantly reduced, micro-ultrasonic wave sensor gauge head there are three, actual experiment platform gauge head number
Mesh needs to choose according to experiment.
In the selection of last plum blossom yielding coupling 19, plum blossom yielding coupling be primarily adapted for use in startup frequently, rotating,
High speed, medium torque and the workplace for requiring high reliability, high-strength polyurethane flexible member wear-resistance and oil-resistance, bearing capacity
Greatly, service life is grown, and without lubrication, maintenance workload is small, can continuous longtime running.It is adapted to this experimental bench requirement.
Advantages of the present invention：
(1) the accurate quick measurement of ball bearing inner race sea surface oil slick thickness is realized.
(2) state simulation to the different spins of rolling element, contact angle is realized.
(3) by changing inner ring and roller surface roughness, can study it is different contact surface roughnesses under lubricating oil into
Film effect.
(4) by changing inner peripheral surface texture, the lubricating oil film-formation result under different inner peripheral surface texture can be studied.
(5) by changing inner ring and spin material, can study circle and spin material inside be respectively steel with ceramics, ceramics with
Ceramics, ceramics and lubricating oil film-formation result when steel, steel and steel.
(6) loading device coordinates with pressure sensor, is easy to observe and adjusts the size of rolling element loading force.
(7) mode of roller loading can reduce the frictional resistance between rolling element and loading device, reduce energy loss.
Brief description of the drawings
Fig. 1 is the structural front view of apparatus of the present invention；
Fig. 2 is apparatus of the present invention micro-ultrasonic wave sensor arrangement details figure；
Fig. 3 is the structural representation of fluting inner ring 5 in Fig. 1, and wherein Fig. 3 a are side view, and Fig. 3 b are front view.
Embodiment
Specific implementation process of the present invention is further explained below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 2, a kind of ball bearing oil film thickness measurement apparatus, sensed comprising axis system, miniature ultrasonic
Device and nozzle support system, rolling element spin system for regulating angle and loading and pressure detecting system；
Described axis system includes main shaft 15, and main shaft 15 is connected with servomotor 20 by plum blossom yielding coupling 19,
Main shaft 15 is driven by servomotor 20, and servomotor 20 is fixed by electric machine support 22 and screw 20, and main shaft 15 passes through left side
The inner bearing support of the inner bearing and right side bearing block 16 of bearing block 1, the inner bearing of right side bearing block 16 pass through the shaft shoulder and tape spool
The bearing cover 17 of screw 18 is positioned at bearing, reference picture 3, and the fluting inner ring 5 on main shaft 15 is positioned by left side axle sleeve 4,
Left side axle sleeve 4 is positioned using axle locking nut 2, this ensure that axis system is reliable and stable, accurate positioning.
Described micro-ultrasonic wave sensor is micro- in the fluting groove of inner ring 5 including being arranged on demand with nozzle support system
Type ultrasonic sensor 6, micro-ultrasonic wave sensor 6 are fixed by connecting rod, in the hole on connecting rod insertion sensor support base 3, are passed
By the fixed nozzle support 9 of screw at nozzle holder 7 on sensor bearing 3, be inserted with nozzle in nozzle holder 9, sensor support base 3 with
Main shaft 15 is separated from each other, and is so conveniently adjusted nozzle and the distance between inner ring 5 of slotting；
Reference picture 2, described rolling element spin system for regulating angle include the connecting rod rolling element contacted with fluting inner ring 5
13, connecting rod rolling element 13 can rotate freely around the bar of its own, and the other end connection sliding block 14 of connecting rod rolling element 13, sliding block 14 exists
Moved on arc guide rail 8, sliding block 14 is the spin angle of adjustable connecting-rod rolling element 13, simple and reliable for structure, and angle adjustment is convenient.
Described loading and pressure detecting system include the loading device 10 being arranged in circular arc 8, loading device
Axis is adjusted by sliding block in circular arc 8, is generally adjusted to vertical with rolling element spin axis, loading device 10 is logical
The body contacts of loading roller 12 and connecting rod rolling element 13 are crossed, the top of loading roller 12 is provided with pressure sensor 11, reads pressure
The size of loading force needed for the numerical value adjustment of force snesor 11.
Fluting inner ring 5 outer surface has different roughness and the ring channel structures of texture characteristic, inner ring outer surface
For standard rolling bearing inner ring macro-size.
The spin of experiment fluting inner ring 5 used and connecting rod rolling element 13 is steel and steel, steel and ceramics, ceramics and steel, pottery
Porcelain is made with ceramic different materials.
Micro-ultrasonic wave sensor 6 is vacantly positioned in bearing inner race groove, and micro-ultrasonic wave sensor is fixed on sensor
In bearing, the gauge head number of micro-ultrasonic wave sensor 6 and location arrangements are not limited to 3 gauge heads according to needing to set, be not limited to as
Figure position.
Reference picture 3, bearing fluting inner ring 5 are one group of different materials, tool through over mechanical processing and surface specially treated
There is the bearing inner race of different surface roughness and different surfaces texture, the groove A opened is used for hanging place for measuring oil film thickness
The micro-ultrasonic wave sensor 6 of degree, the outer surface macro-size of the fluting inner ring 5 by surface specially treated is according to standard rolling bearing
Processing, is the standard size of deep groove ball bearing inner ring or angular contact ball bearing inner ring etc., and the connecting rod rolling element 13 on inner ring is phase
Answer the spin of size.
Secondly micro-ultrasonic wave sensor 6 is hanging is placed in the groove A of fluting inner ring, makes micro-ultrasonic wave sensor 6 and matches somebody with somebody
Line remains static all the time, and then can carry out the measurement of oil film thickness under the conditions of bearing real-world operation is simulated, and improves dress
Stability and dependability is put, significantly reduces the complexity of device, micro-ultrasonic wave sensor gauge head there are three, actual experiment
Platform gauge head number needs to choose according to experiment.
The operation principle of the present invention, comprises the following steps：
(1) sliding block 14 and loading device to required angle are adjusted, that is, adjusts the direction of rolling element spin direction and loading force.
(2) loading force is adjusted by loading device 10, loading force is adjusted to required size by observed pressure sensor 11.
(3) start lubricating system, can be oil jet lubrication system, oil gas lubricating system etc..By taking oil jet lubrication system as an example, this
When lubricating oil from nozzle be ejected to fluting inner ring 5, play prelubricated effect.
(4) servomotor is started, until motor operating is stable, lubricating oil is basicly stable in inner ring distribution, starts miniature super
Sonic sensor detects and records the oil film thickness of several measurement positions.
(5) detection closes micro-ultrasonic wave sensor, servomotor, lubricating system successively after terminating.
(6) different materials, different surface roughness, the inner ring of different surfaces texture are changed, changes different materials, different tables
The spin of surface roughness, repeat (1) to (5) and carry out many experiments.
Claims (2)
1. a kind of ball bearing oil film thickness measurement apparatus, it is characterised in that include axis system, micro-ultrasonic wave sensor and spray
Mouth support system, rolling element spin system for regulating angle and loading and pressure detecting system；
Described axis system includes main shaft (15), and main shaft (15) passes through plum blossom yielding coupling (19) phase with servomotor (20)
Even, main shaft (15) is supported by the inner bearing of Left hand bearing block (1) and the inner bearing of right side bearing block (16), right side bearing block
(16) inner bearing is positioned by bearing cover (17), and the fluting inner ring (5) on main shaft (15) is fixed by left side axle sleeve (4)
Position, left side axle sleeve (4) are positioned using axle with locking nut (2)；
Described micro-ultrasonic wave sensor is miniature in fluting inner ring (5) groove including being arranged on demand with nozzle support system
Ultrasonic sensor (6), micro-ultrasonic wave sensor (6) are fixed by connecting rod, the hole on connecting rod insertion sensor support base (3)
In, fixed nozzle support (9) on sensor support base (3), nozzle, sensor support base (3) and main shaft are inserted with nozzle holder (9)
(15) it is separated from each other；
Described rolling element spin system for regulating angle includes the connecting rod rolling element (13) contacted with fluting inner ring (5), connecting rod rolling
The other end connection sliding block (14) of kinetoplast (13), sliding block (14) move on arc guide rail (8)；
Described loading includes the loading device (10) being arranged in circular arc (8), loading device with pressure detecting system
(10) by loading the body contacts of roller (12) and connecting rod rolling element (13), pressure sensing is provided with above loading roller (12)
Device (11).
A kind of 2. ball bearing oil film thickness measurement apparatus according to claim 1, it is characterised in that the fluting inner ring
(5) outer surface has different roughness and the ring channel structures of texture characteristic, and inner ring outer surface is standard rolling bearing inner ring macroscopic view
Size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794113.7A CN107449380B (en) | 2017-09-06 | 2017-09-06 | A kind of ball bearing oil film thickness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794113.7A CN107449380B (en) | 2017-09-06 | 2017-09-06 | A kind of ball bearing oil film thickness measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107449380A true CN107449380A (en) | 2017-12-08 |
| CN107449380B CN107449380B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710794113.7A Active CN107449380B (en) | 2017-09-06 | 2017-09-06 | A kind of ball bearing oil film thickness measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645358A (en) * | 2018-04-26 | 2018-10-12 | 大连理工大学 | It is a kind of ultrasonic in machine thickness measuring contact condition control method |
| CN112166297A (en) * | 2018-05-31 | 2021-01-01 | 东丽株式会社 | Method and apparatus for measuring thickness of liquid film, and method for producing thin film |
| TWI732559B (en) * | 2020-05-19 | 2021-07-01 | 國立勤益科技大學 | Oil film measuring device of processing machine feed system |
| CN114034455A (en) * | 2021-10-25 | 2022-02-11 | 西安交通大学 | Rolling bearing retainer and rolling element collision recovery coefficient measuring device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997855A (en) * | 2012-11-30 | 2013-03-27 | 清华大学 | Experiment device for measuring thickness of lubricating liquid film under contact between spherical surfaces |
| CN103615994A (en) * | 2013-11-06 | 2014-03-05 | 西安交通大学 | Device and method for testing thickness of lubricating oil film of rolling bearing |
-
2017
- 2017-09-06 CN CN201710794113.7A patent/CN107449380B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997855A (en) * | 2012-11-30 | 2013-03-27 | 清华大学 | Experiment device for measuring thickness of lubricating liquid film under contact between spherical surfaces |
| CN103615994A (en) * | 2013-11-06 | 2014-03-05 | 西安交通大学 | Device and method for testing thickness of lubricating oil film of rolling bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645358A (en) * | 2018-04-26 | 2018-10-12 | 大连理工大学 | It is a kind of ultrasonic in machine thickness measuring contact condition control method |
| CN112166297A (en) * | 2018-05-31 | 2021-01-01 | 东丽株式会社 | Method and apparatus for measuring thickness of liquid film, and method for producing thin film |
| US11493327B2 (en) * | 2018-05-31 | 2022-11-08 | Toray Industries, Inc. | Liquid layer thickness measurement method, measurement device, film production method |
| TWI732559B (en) * | 2020-05-19 | 2021-07-01 | 國立勤益科技大學 | Oil film measuring device of processing machine feed system |
| CN114034455A (en) * | 2021-10-25 | 2022-02-11 | 西安交通大学 | Rolling bearing retainer and rolling element collision recovery coefficient measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107449380B (en) | 2019-11-08 |
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