CN115615859A - Rolling bearing reciprocating spin experiment machine - Google Patents
Rolling bearing reciprocating spin experiment machine Download PDFInfo
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- CN115615859A CN115615859A CN202211307640.8A CN202211307640A CN115615859A CN 115615859 A CN115615859 A CN 115615859A CN 202211307640 A CN202211307640 A CN 202211307640A CN 115615859 A CN115615859 A CN 115615859A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 34
- 238000002474 experimental method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 239000011521 glass Substances 0.000 claims abstract description 74
- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- 238000005461 lubrication Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims description 37
- 239000003921 oil Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 8
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000009987 spinning Methods 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 7
- 230000001133 acceleration Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to the technical field of contact lubrication abrasion, and particularly relates to a rolling bearing reciprocating self-spinning experiment machine.A glass disk drive mechanism, a support and adjustment mechanism, a loading mechanism and a steel ball drive mechanism are used for driving a glass disk and a large steel ball to be in contact and move relatively, the steel ball is made to perform unidirectional self-spinning or reciprocating self-spinning movement at different speeds through a program, the maximum speed of rotation of the steel ball and the acceleration time when the maximum speed is reached are set in the reciprocating self-spinning process, an oil film image of a contact area is collected through an optical collection mechanism and is transmitted to an external computer, the relative movement is observed in real time, and the thickness and the appearance of an elastic hydrodynamic lubrication oil film formed by the steel ball and the glass disk are stored so as to research the abrasion condition between the steel ball and the glass disk; the bearing has the advantages of simple structure, strong practicability and reliable work, and provides a reliable foundation for researching the lubrication or abrasion problem of the contact of the reciprocating self-rotation motion of the rolling bearing.
Description
The technical field is as follows:
the invention belongs to the technical field of contact lubrication wear, and particularly relates to a rolling bearing reciprocating spinning tester which is convenient for reliably researching the lubrication or wear problem of the rolling bearing reciprocating spinning motion contact.
The background art comprises the following steps:
the rolling bearing is one of the most widely used basic parts, is used as a basic precise mechanical element, is widely applied to the high-tech fields of aviation field, military equipment and the like, and performance analysis under real working conditions is needed before use to evaluate the relevant technical indexes such as abrasion, service life, reliability and the like. The understanding of the friction, wear and lubrication states in the contact pair is of great significance to the tribological design, surface treatment and development of lubricating oil products of the rolling bearing components. At present, the research results are less aiming at the lubrication analysis of the reciprocating self-rotating motion of the rolling bearing, the elastohydrodynamic lubrication research is mostly focused on the working conditions of relative rolling and sliding of two solid surfaces, however, the self-rotating motion relationship also exists in the engineering, for example, the high-speed spindle of the machine tool adopts an angular contact ball bearing as a support, and the contact part of the steel ball and the ferrule generates the self-rotating motion while the steel ball rolls in the bearing. In the use process of the rolling bearing, part of bearing abrasion is caused by the self-rotating torque generated by the self-rotating motion of the steel ball, and therefore the method has important significance for the elastohydrodynamic lubrication research in the self-rotating state. With the intensive research on tribology, the theory and application of tribology have turned from macro to micro, researchers tend to quantitatively understand the dynamic evolution process of friction characteristics, and this requires extracting friction, wear and lubrication information at the same time in the tribology measurement process, and establishing the internal relation among the three in real time. The common rolling bearing testing machine usually considers that the motion is one-dimensional rotation motion, the states of the thickness of a lubricating oil film and the like during the reciprocating spinning operation of the rolling bearing cannot be observed, the research on the influence of kinematic parameters, grease supply conditions and the like on the thickness distribution of a point contact reciprocating spinning film is lacked, and the requirements of performance evaluation and real oil film prediction of the rolling bearing cannot be completely met. For example, chinese patent 201620136612.8 discloses an oil-immersed rolling bearing life strengthening testing machine for detecting fatigue life of four sets of test bearings, which includes: the device comprises a frame, a stirring oil supplementing device, a test head component, a vibration sensor, a temperature sensor, a transmission system, a loading system, a signal amplifier and a computer monitoring system; the stirring oil supplementing device, the test head component, the transmission system and the loading system are all fixed on the rack; the transmission system is connected with the test head component; the loading system is positioned on the side surface of the test bearing and loads radial load and axial load to the test bearing; the vibration sensor and the temperature sensor are arranged on the test head part and are connected with the computer monitoring system through the signal amplifier; chinese patent 201920600092.5 discloses a antifriction bearing friction torque testing machine, includes: the device comprises a rack, a liquid dynamic and static pressure main shaft, a loading weight, a sensor adjusting device, a test bearing, an oil supply system and a computer monitoring system; the dynamic and static pressure testing device comprises a frame, a testing bearing, a servo motor, a sensor adjusting device, an oil supply system, a central processing unit and a central processing unit, wherein the dynamic and static pressure liquid main shaft, the sensor adjusting device and the oil supply system are all fixed on the frame; chinese patent 202021337680.3 discloses a antifriction bearing rotation torque detection device, including frame and weight, installation driving motor and liquid hybrid main shaft on the frame, liquid hybrid main shaft one end is connected the driving motor output shaft, liquid hybrid main shaft other end connection test axle, the test axle top sets up bearing location structure, liquid hybrid main shaft side is equipped with measuring component, open test axle upper end has bearing inner race location circumference, bearing location structure is including compressing tightly the end cover, compress tightly the end cover pass through the screw install in test axle top, run through observation louvre and outer lane mounting hole under to from last in the weight, weight lower part periphery radial installation screw, measuring component includes the magnetism gauge stand, installation sensor seat on the magnetism gauge stand gauge rod, force sensor is fixed in sensor seat, one side of gauge head is connected force sensor, opposite side installation test rope, open in the frame has the transmission groove, the installation of frame bottom driving motor, the driving motor output shaft is located in the transmission groove, the vertical installation above the frame liquid hybrid main shaft, liquid hybrid main shaft one end is located in the transmission groove to pass through driving motor output shaft and be connected. Chinese patent 202210579386.0 discloses a rolling bearing swing test device, includes: the test bench comprises a transmission part, a test bench plate, a test head seat and a test head; the transmission part and the test head seat are arranged on the test bedplate; the test head is arranged in the cavity of the test head seat; the test head is connected with the transmission part through the transmission shaft, so that the test bearing swings according to test conditions; the test head seat is provided with an axial oil cylinder and a radial oil cylinder which are used for providing test load; the transmission part is provided with a monitoring part which is in communication connection with a computer and is used for monitoring the swing angle of the test bearing in real time; the test head is provided with a monitoring part which is in communication connection with a computer and used for monitoring the vibration and the temperature of the test bearing in real time. Therefore, the rolling bearing reciprocating self-spinning experimental machine is researched and designed based on the defects of the conventional experimental machine, the actual working condition of the reciprocating self-spinning motion of the rolling bearing can be effectively and accurately simulated, the lubrication and wear experiments are accurately carried out, and the real oil film state is observed in real time.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and develops and designs a rolling bearing reciprocating spin tester which can realize unidirectional spin or reciprocating spin at different acceleration times and different speeds.
In order to achieve the purpose, the main structure of the rolling bearing reciprocating self-spinning experiment machine comprises a glass disc, a steel ball, an optical acquisition mechanism, a glass disc driving mechanism, a supporting and adjusting mechanism and a loading mechanism, wherein the glass disc and the steel ball are in mutual contact, the optical acquisition mechanism is arranged above the glass disc and the steel ball, the glass disc driving mechanism is arranged below the glass disc, and the supporting and adjusting mechanism and the loading mechanism are arranged below the steel ball, wherein the supporting and adjusting mechanism is connected with the steel ball driving mechanism.
The main structure of the optical acquisition mechanism 1 comprises an optical microscope and a CCD camera which are connected with each other;
the main structure of the glass disk driving mechanism comprises a glass disk driving motor, a sleeve, a top cover and a leveling nut; the glass disc driving motor is arranged inside the sleeve, a top cover is arranged at the top of the sleeve, a plurality of leveling nuts are arranged on the top cover, and the glass disc is arranged between the sleeve and the top cover;
the main structure of the supporting and adjusting mechanism comprises an adjusting platform, a bearing base, a thrust ball bearing, a main shaft, a large helical bevel gear and a ball support; a thrust ball bearing is arranged in a bearing base arranged on the adjusting platform, a main shaft is sleeved in the thrust ball bearing, a large helical bevel gear is sleeved at the bottom of the main shaft, the top of the main shaft is connected with a ball support, and a steel ball is arranged on the ball support;
the main structure of the loading mechanism comprises a loading plate arranged between the bearing supports and a loading thimble arranged below the loading plate;
the main structure of the steel ball driving mechanism comprises a steel ball driving motor and a small helical bevel gear connected with the steel ball driving motor through a coupler and a shaft.
Rubber pads are arranged between the glass disc and the sleeve as well as between the glass disc and the top cover, and steel pads are also arranged between the top cover and the rubber pads so as to prevent the leveling nut from damaging the glass disc in the leveling process; the leveling platform is arranged on the loading plate through a platform adjusting support; the large helical bevel gear is meshed with the small helical bevel gear.
The invention relates to a rolling bearing reciprocating spin experiment machine, which has the working principle that:
the glass disk driving motor is driven to rotate by an external PLC and a servo motor relay, and the glass disk driving motor drives the glass disk to rotate through the sleeve;
the steel ball driving motor is driven to rotate by an external PLC and a servo motor relay, and the steel ball driving motor drives the small helical bevel gear to rotate through the coupler and the shaft, so that the large helical bevel gear and the steel ball are driven to rotate;
the glass disc is in rotating contact with the steel ball, and the optical acquisition mechanism acquires an oil film image of the contact area and transmits the oil film image to an external computer to analyze and process the thickness, the appearance and the wear state of a lubricating oil film.
Compared with the prior art, the invention drives the glass disc and the large steel ball to contact and move relatively through the glass disc driving mechanism, the supporting and adjusting mechanism, the loading mechanism and the steel ball driving mechanism, enables the steel ball to carry out unidirectional self-rotating or reciprocating self-rotating movement with different speeds through a program, sets the maximum rotating speed of the steel ball and the acceleration time when the maximum rotating speed is reached in the reciprocating self-rotating process, acquires an oil film image of a contact area through the optical acquisition mechanism and transmits the oil film image to an external computer, observes the relative movement in real time, stores the thickness and the appearance of an elastic hydrodynamic lubrication oil film formed by the steel ball and the glass disc, and researches the abrasion condition between the steel ball and the glass disc; the device has the advantages of simple structure, strong practicability and reliable work, and provides a reliable foundation for researching the lubrication or abrasion problem of the contact of the reciprocating self-rotating motion of the rolling bearing.
Description of the drawings:
fig. 1 is a schematic view of the main structure of the present invention.
Fig. 2 is an exploded view of the support and adjustment mechanism according to the present invention.
Fig. 3 is a schematic view of the engagement of the support and adjustment mechanism and the ball drive mechanism according to the present invention.
The specific implementation mode is as follows:
the invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Example 1:
the main structure of the rolling bearing reciprocating spin experiment machine related to the embodiment comprises an optical microscope 11, a CCD camera 12, a microscope support 13, a glass disc driving motor 21, a sleeve 22, a top cover 23, a leveling nut 24, a rubber pad 25, a steel pad 26, a glass disc driving motor support 27, a leveling table 31, a bearing base 32, a thrust ball bearing 33, a main shaft 34, a large helical bevel gear 35, a ball support 36, a leveling table support 37, a bearing support 41, a loading plate 42, a loading thimble 43, a steel ball driving motor 51, a coupling 52, a shaft 53, a small helical bevel gear 54, a steel ball driving motor support 55 and a mounting platform 300;
the mounting platform 300 is provided with a microscope bracket 13, a glass disc driving motor bracket 27, a bearing support 41 and a steel ball driving motor support 51;
the liftable microscope bracket 13 is provided with an optical microscope 11, and the optical microscope 11 is connected with the CCD camera 12;
the glass disc driving motor support 27 is connected with the glass disc driving motor 21, a sleeve 22 with an inner hollow structure is arranged on the outer side of the glass disc driving motor 21, a top cover 23 is arranged at the top of the sleeve 22, a plurality of leveling nuts 24 are arranged on the top cover 23, rubber pads 25 are arranged at the top of the sleeve 22 and the bottom of the top cover 23, and a steel pad 26 is arranged between the top cover 23 and the rubber pads 25;
a loading plate 42 is arranged between the bearing supports 41, a loading thimble 43 is arranged below the loading plate 42, a leveling platform support 37 is arranged above the loading plate 42, an adjusting platform 31 is arranged on the leveling platform support 37, a thrust ball bearing 33 is arranged in a bearing base 32 arranged on the leveling platform 31, a main shaft 34 is sleeved in the thrust ball bearing 33, a large helical bevel gear 35 is sleeved outside the bottom of the main shaft 34, and the top of the main shaft is connected with a ball support 36;
the steel ball driving motor support 55 is provided with a steel ball driving motor 51, the steel ball driving motor 51 is connected with a small helical bevel gear 54 through a coupler 52 and a shaft 53, and the large helical bevel gear 35 is meshed with the small helical bevel gear 54.
The optical microscope 11, the CCD camera 12 and the microscope stand 13 according to the present embodiment cooperate to form the optical pickup mechanism 1; the glass disk driving mechanism 2 is formed by matching a glass disk driving motor 21, a sleeve 22, a top cover 23, a leveling nut 24, a rubber pad 25, a steel pad 26 and a glass disk driving motor bracket 27; the adjusting platform 31, the bearing base 32, the thrust ball bearing 33, the main shaft 34, the large helical bevel gear 35, the ball support 36 and the adjusting platform support 37 are matched to form a supporting and adjusting mechanism 3; the bearing support 41, the loading plate 42 and the loading thimble 43 cooperate to form a loading mechanism 4; the steel ball driving motor 51, the coupler 52, the shaft 53, the small helical bevel gear 54 and the steel ball driving motor support 55 are matched to form the steel ball driving mechanism 5.
The sleeve 22 according to the present embodiment is screwed to the top cover 23, and the sleeve 22 is bolted to the platform 300; the surface of the top cover 23 is processed with a threaded hole so that the leveling nut 24 can level the glass disc 100 through the threaded hole; the loading thimble 43 is driven by an external rocker to lift or lower the loading plate 42, and the load value is displayed by an external pressure sensor.
When the rolling bearing reciprocating spin tester related to the embodiment is used,
the optical microscope 11 and the CCD camera 12 are respectively connected with a computer, and the optical microscope 11 is positioned above the glass disc 100 and the steel ball 200;
placing the glass disc 100 on the sleeve 22, placing the rubber pad 25 and the steel pad 26, screwing the top cover 23, driving the glass disc driving motor 21 to slowly rotate through an external PLC and a servo motor relay, driving the glass disc driving motor 21 to slowly rotate through the sleeve 22, and adjusting the position of the glass disc 100 through the leveling nut 24 to keep the glass disc 100 horizontal;
placing a steel ball 200 on a ball support 36, setting a load, jacking up a loading plate 42 through a loading thimble 43 to lift the steel ball 200, enabling the steel ball 200 to be in contact with a glass disc 100, simultaneously rotating an adjusting platform 31 to enable the steel ball 200 to be horizontal, driving a steel ball driving motor 51 to rotate through an external PLC and a servo motor relay, driving a small helical bevel gear 54 to rotate through a coupler 52 and a shaft 53 by the steel ball driving motor 51, and further driving the steel ball 200 to rotate through a large helical bevel gear 35; the glass plate 100 and the steel ball 200 move relatively; the optical acquisition mechanism 1 acquires an oil film image of the contact area in real time and transmits the oil film image to a computer; and (4) measuring and analyzing the thickness and the shape of the oil film by a computer.
Example 2:
after the glass disc 100 for the rolling bearing reciprocating spin experiment machine is worn, a new glass disc or metal disc can be replaced, the glass disc 100 and the steel ball 200 are contacted with each other by different loads through the loading mechanism 4, and the practicability and reliability of the experiment are improved;
example 3:
the reciprocating self-rotating rolling bearing tester indirectly drives the glass disc 100 and the steel ball 200 to move relatively under the contact state of the two, so as to form elastic fluid dynamic lubrication under the contact condition.
Claims (8)
1. A rolling bearing reciprocating spin experiment machine is characterized in that a main body structure comprises a glass disc, a steel ball, an optical acquisition mechanism, a glass disc driving mechanism, a supporting and adjusting mechanism and a loading mechanism, wherein the glass disc and the steel ball are in mutual contact, the optical acquisition mechanism is arranged above the glass disc and the steel ball, the glass disc driving mechanism is arranged below the glass disc, and the supporting and adjusting mechanism and the loading mechanism are arranged below the steel ball and are connected with the steel ball driving mechanism.
2. The rolling bearing reciprocating spin experiment machine of claim 1, wherein the main structure of the optical acquisition mechanism comprises an optical microscope and a CCD camera connected with each other; the main structure of the glass disk driving mechanism comprises a glass disk driving motor, a sleeve, a top cover and a leveling nut; the glass disc driving motor is arranged inside the sleeve, a top cover is arranged at the top of the sleeve, a plurality of leveling nuts are arranged on the top cover, and the glass disc is arranged between the sleeve and the top cover; the main structure of the supporting and adjusting mechanism comprises an adjusting platform, a bearing base, a thrust ball bearing, a main shaft, a large helical bevel gear and a ball support; a thrust ball bearing is arranged in a bearing base arranged on the adjusting platform, a main shaft is sleeved in the thrust ball bearing, a large helical bevel gear is sleeved at the bottom of the main shaft, the top of the main shaft is connected with a ball support, and a steel ball is arranged on the ball support; the main structure of the loading mechanism comprises a loading plate arranged between the bearing supports and a loading thimble arranged below the loading plate; the main structure of the steel ball driving mechanism comprises a steel ball driving motor and a small helical bevel gear connected with the steel ball driving motor through a coupler and a shaft.
3. The rolling bearing reciprocating spin experiment machine of claim 2, wherein rubber pads are disposed between the glass plate and the sleeve and between the glass plate and the top cover, and steel pads are disposed between the top cover and the rubber pads; the leveling platform is arranged on the loading plate through a platform adjusting support; the large helical bevel gear is meshed with the small helical bevel gear.
4. The rolling bearing reciprocating spin experiment machine of claim 2 or 3, wherein the working principle is as follows:
the glass disk driving motor is driven to rotate by an external PLC and a servo motor relay, and the glass disk driving motor drives the glass disk to rotate through the sleeve; the steel ball driving motor is driven to rotate by an external PLC and a servo motor relay, and the steel ball driving motor drives the small helical bevel gear to rotate through the coupler and the shaft, so that the large helical bevel gear and the steel ball are driven to rotate; the glass disc is in rotating contact with the steel ball, and the optical acquisition mechanism acquires an oil film image of the contact area and transmits the oil film image to an external computer to analyze and process the thickness, the appearance and the wear state of the lubricating oil film.
5. The rolling bearing reciprocating spin experiment machine of claim 4, wherein in use, the optical microscope and the CCD camera are respectively connected with the computer, and the optical microscope is positioned above the glass disc and the steel ball; placing a glass disc on a sleeve, placing a rubber pad and a steel pad, screwing a top cover, driving a glass disc driving motor to rotate slowly through an external PLC and a servo motor relay, driving the glass disc driving motor to rotate slowly through the sleeve, and adjusting the position of the glass disc to be horizontal through a leveling nut; placing a steel ball on a ball support, setting a load, jacking a loading plate through a loading thimble to lift the steel ball so as to enable the steel ball to be in contact with a glass disc, simultaneously rotating an adjusting platform to enable the steel ball to be kept horizontal, driving a steel ball driving motor to rotate through an external PLC and a servo motor relay, driving a small bevel gear to rotate through a coupler and a shaft by the steel ball driving motor, and further driving the steel ball to rotate through a large bevel gear; the glass disc and the steel ball do relative motion; the optical acquisition mechanism acquires an oil film image of the contact area in real time and transmits the oil film image to the computer; and (4) measuring and analyzing the thickness and the shape of the oil film by a computer.
6. The rolling bearing reciprocating spin test machine of claim 2 or 3, wherein the sleeve is threadedly connected to the top cap; the surface of the top cover is provided with a threaded hole; the loading thimble is driven by an external rocker to lift or lower the loading plate, and the load value is displayed by an external pressure sensor.
7. The rolling bearing reciprocating spin test machine of claim 5, wherein the glass disk is replaced with a new glass disk or a new metal disk after being worn, and the glass disk and the steel ball are brought into contact with each other with different loads by the loading mechanism.
8. The rolling bearing reciprocating spin experiment machine of claim 5, wherein the glass plate and the steel ball are indirectly driven to move relatively under the contact condition, so as to form elastic fluid dynamic lubrication under the contact condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211307640.8A CN115615859A (en) | 2022-10-25 | 2022-10-25 | Rolling bearing reciprocating spin experiment machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211307640.8A CN115615859A (en) | 2022-10-25 | 2022-10-25 | Rolling bearing reciprocating spin experiment machine |
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| CN115615859A true CN115615859A (en) | 2023-01-17 |
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| CN202211307640.8A Pending CN115615859A (en) | 2022-10-25 | 2022-10-25 | Rolling bearing reciprocating spin experiment machine |
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| CN (1) | CN115615859A (en) |
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- 2022-10-25 CN CN202211307640.8A patent/CN115615859A/en active Pending
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