CN109238709A - A kind of rolling bearing equlvalent coefficient of friction measuring device and method - Google Patents
A kind of rolling bearing equlvalent coefficient of friction measuring device and method Download PDFInfo
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- CN109238709A CN109238709A CN201811283190.7A CN201811283190A CN109238709A CN 109238709 A CN109238709 A CN 109238709A CN 201811283190 A CN201811283190 A CN 201811283190A CN 109238709 A CN109238709 A CN 109238709A
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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
Abstract
The invention discloses a kind of rolling bearing equlvalent coefficient of friction measuring devices, including fuselage, slide, two air-floating main shaft components, mandrel, speed probe and data acquisition/processing/calculating/display system.Air-floating main shaft component includes air-floating main shaft matrix and air-floating main shaft；One air-floating main shaft matrix and fuselage are connected, another air-floating main shaft matrix and slide are connected, and two air-floating main shafts are coaxial；The both ends of mandrel pass through cone match or shaft coupling respectively and connect with two air-floating main shafts；Tested rolling bearing inner ring is installed on the shaft shoulder of mandrel；Speed probe is used to monitor the angular speed of mandrel or air-floating main shaft；Data acquisition/processing/calculating/display system is used to acquire, handle the angular velocity signal of mandrel or air-floating main shaft that speed probe monitors, calculates the equivalent friction torque and equlvalent coefficient of friction of tested rolling bearing.Measuring device of the present invention has the ability of fast precise measurement rolling bearing equivalent friction torque and equlvalent coefficient of friction.
Description
Technical field
The invention belongs to rolling bearing friction energy loss characteristic test technical fields, are related to a kind of rolling bearing equivalent friction system
Number measuring device and method.
Background technique
Friction energy loss in rolling bearing operational process directly affects fever, temperature rise and abrasion of bearing etc., and then influences
The performance of rolling bearing and service life.The friction energy loss characteristic of rolling bearing is a kind of inherent characteristic of rolling bearing itself, centainly
The manufacture quality and clean-up performance of rolling bearing are reflected in degree.
Starting moment of friction and pivoting friction torque is respectively adopted at this stage to evaluate the starting friction energy loss of rolling bearing
With pivoting friction energy consumption, and the starting frictional force of tested rolling bearing is measured using various Frictional Moment for Rolling Bearings measuring device
Square and pivoting friction torque.
Since the starting moment of friction of rolling bearing under test condition and the amplitude of pivoting friction torque are smaller, existing rolling
Precision is not obviously when carrying out high-acruracy survey for micro- power used in dynamic bearing measurement of friction torque device or micro-torque sensor
Foot.Therefore, need to develop a kind of new measurement for detecting rolling bearing friction energy loss characteristic.
Summary of the invention
In view of the problems of the existing technology, the present invention proposes a kind of for deep groove ball bearing and cylinder roller bearing equivalent
Friction coefficient measuring apparatus and method.Rolling bearing of the present invention refers in particular to deep groove ball bearing and cylinder roller bearing.This hair
In bright, tested rolling bearing is abstracted as virtually radially sliding for the excessively tested rolling bearing rolling element center in the face that is slidably matched
Bearing, i.e., the described virtual bush(ing) bearing are the virtual diameters at the excessively tested rolling bearing rolling element center in the face that is slidably matched
To sliding bearing, the inner ring of the virtual bush(ing) bearing and the outer ring of virtual the bush(ing) bearing group at the face of being slidably matched
At sliding friction pair.The virtual bush(ing) bearing is under Test Cycle identical with corresponding tested rolling bearing,
The friction power loss of the sliding friction pair is equivalent to the friction power loss of tested rolling bearing, the friction horsepower of the sliding friction pair
It is described equal to the product of the sliding friction torque of the sliding friction pair and the revolution angular speed of the virtual bush(ing) bearing
The sliding friction torque of sliding friction pair is equal to the radius R in the face that is slidably matched, the radial load at the face that is slidably matched
With the product of the coefficient of friction of the sliding friction pair.The sliding friction torque of the sliding friction pair is denoted as of the present invention
Tested rolling bearing equivalent friction torque, the coefficient of sliding friction of the sliding friction pair is denoted as quilt of the present invention
Survey the equlvalent coefficient of friction of rolling bearing.Equlvalent coefficient of friction of the present invention has objectively responded the manufacture of tested rolling bearing
Matter and clean-up performance belong to the inherent characteristic of tested rolling bearing.Rolling bearing equlvalent coefficient of friction measuring device of the present invention has
The ability of fast precise measurement rolling bearing equivalent friction torque and equlvalent coefficient of friction.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of rolling bearing equlvalent coefficient of friction measuring device, the survey
Measuring device includes fuselage, slide, two air-floating main shaft components, mandrel, speed probe and data acquisition/processing/calculating/display
System；The air-floating main shaft component includes air-floating main shaft matrix and air-floating main shaft；Described two air-floating main shaft matrixes, one of them
It is connected with the fuselage, another is connected with the slide, and described two air-floating main shafts are coaxial；The both ends of the mandrel lead to respectively
It crosses cone match or shaft coupling to connect with described two air-floating main shafts, the mandrel and described two air-floating main shafts are coaxial；Institute
Mandrel is stated equipped with the shaft shoulder for installing the inner ring of tested rolling bearing；Slide air bearing master described in outer power drive lower edge
The axial translation of axis；Components including described two air-floating main shaft components, mandrel and tested rolling bearing collectively form
The rotary axis system of measuring device of the present invention, the movement parts on the rotary axis system include described two air-floating main shafts, mandrel, quilt
Survey the inner ring, the rolling element of tested rolling bearing and the retainer of tested rolling bearing of rolling bearing；The speed probe is used
In the angular speed for monitoring the mandrel or air-floating main shaft；Data acquisition/processing/calculating/the display system is for acquiring, handling
The speed probe adopts the angular velocity signal of the mandrel or air-floating main shaft that monitor, and tested rolling bearing is calculated and be shown
Equivalent friction torque and equlvalent coefficient of friction.
In the present invention, the rotary axis system is preferably horizontal layout, and the axis of the air-floating main shaft is parallel to horizontal plane.
When carrying out equlvalent coefficient of friction measurement using rolling bearing equlvalent coefficient of friction measuring device of the present invention, also need to be arranged
Power device, the output shaft of the power device are coupled or are divided with the free end of one of air-floating main shaft by an arrangement of clutch
From, be arranged radially radial loading device in tested rolling bearing, measurement method the following steps are included:
Step 1: the inner ring of tested rolling bearing is installed at the shaft shoulder of mandrel；The both ends of mandrel are passed through point respectively
Not Tong Guo cone match or shaft coupling connect with described two air-floating main shafts；
Step 2: the type and size according to tested rolling bearing utilize diameter by Frictional Moment for Rolling Bearings specifications of surveys
Radial load as defined in applying to loading device to the outer ring of tested rolling bearing；
Step 3: power device drives one of air-floating main shaft to turn round by arrangement of clutch, air-floating main shaft, mandrel and by
The inner ring for surveying rolling bearing keeps synchronous revolving；Data acquisition/processing/calculating/display system acquisition, processing come from revolution speed sensing
The mandrel of device or the angular velocity signal of air-floating main shaft, are calculated and be shown the angular speed of mandrel；
Step 4: the rotational speed of air-floating main shaft and mandrel is gradually increased to given value, after the speed of service is stablized, clutch dress
Set the output shaft and air-floating main shaft of separation power device, the friction of the rotational speed of air-floating main shaft and mandrel in tested rolling bearing
Gradually until air-floating main shaft and mandrel stop revolution, data acquisition/processing/calculating/display system is obtained for decaying under power consumption effect
Mandrel angular speed-time numerical relation；
Step 5: data acquisition/processing/calculating/display system calculates the movement velocity of all movement parts on rotary axis system
And kinetic energy, obtain rotary axis system total kinetic energy-time numerical relation；To the numerical relation derivation of rotary axis system total kinetic energy-time,
Rotary axis system total kinetic energy-time numerical relation is at a time the attenuating speed of rotary axis system total kinetic energy to the derivative of time
Rate is also the friction horsepower under tested rolling bearing angular speed corresponding to the moment；The friction horsepower of tested rolling bearing
The quotient obtained divided by the magnitude of angular velocity is tested equivalent friction torque of the rolling bearing under the angular speed, is tested rolling bearing
Equivalent friction torque divided by virtual bush(ing) bearing corresponding with tested rolling bearing the face that is slidably matched radius R and cunning
The quotient that the product of radial load at dynamic mating surface obtains is tested equlvalent coefficient of friction of the rolling bearing under the angular speed；
When the angular speed of air-floating main shaft and mandrel goes to zero, corresponding equivalent friction torque and equlvalent coefficient of friction phase
When in the starting equivalent friction torque and starting equlvalent coefficient of friction of tested rolling bearing.
Compared with prior art, the beneficial effects of the present invention are:
On the one hand, the angular velocity measurement precision of speed probe is much higher than conventional rolling bearing measurement of friction torque device institute
The measurement accuracy of the micro- power or micro- moment sensor that use；On the other hand, all movement parts tool on rotary axis system is well-regulated
Geometry, the size of known high precision and quality, specific motion mode and accurate movement velocity, thus rotating shaft
It is that total kinetic energy has very high computational accuracy.Therefore the equivalent friction torque of tested rolling bearing and equlvalent coefficient of friction all have
High measurement/computational accuracy.
Further, the present invention can also be by increasing the quality of the movement parts on rotary axis system to promote rotary axis system
Initial kinetic energy, the die-away time for extending rotary axis system angular speed, further increase the measurement accuracy of rotary axis system angular speed, in turn
Improve the equivalent friction torque of tested rolling bearing and measurement/computational accuracy of equlvalent coefficient of friction.
Detailed description of the invention
Fig. 1-1 is the structural schematic diagram of tested deep groove ball bearing；
Fig. 1-2 is the virtual sliding bearing schematic diagram that deep groove ball bearing is tested shown in Fig. 1-1；
Fig. 2-1 is the structural schematic diagram of tested cylinder roller bearing；
Fig. 2-2 is the virtual sliding bearing schematic diagram that cylinder roller bearing is tested shown in Fig. 2-1；
Fig. 3 is the partial structural diagram of rolling bearing equlvalent coefficient of friction measuring device；
In figure:
1- inner ring；
The outer ring 2-；
3- rolling element；
The inner ring of the virtual bush(ing) bearing of 4-；
The outer ring of the virtual bush(ing) bearing of 5-；
6- is slidably matched face；
7- fuselage；
8- slide；
9- air-floating main shaft matrix；
10- air-floating main shaft；
11- mandrel；
The 12- shaft shoulder.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.It is by reference to the embodiment that attached drawing describes
Illustratively, it is intended to be used to explain the present invention, and be not considered as limiting the invention.In addition, remembering in following implementation
Size, material, shape and its relative configuration of the constituent part of load etc. will not be of the invention such as without special specific record
Range is only limitted to this.
Involved rolling bearing includes deep groove ball bearing and cylinder roller bearing in the present invention, and Fig. 1-1 shows depth
The structure of ditch ball bearing, Fig. 2-1 show the structure of cylinder roller bearing.In the present invention, tested rolling bearing is abstracted as one
The virtual bush(ing) bearing at the center of the rolling element 3 of a excessively tested rolling bearing in the face 6 that is slidably matched is that is, described virtual radial sliding
Dynamic bearing is the virtual bush(ing) bearing at the center of the rolling element 3 of an excessively tested rolling bearing in the face 6 that is slidably matched, with figure
It is as shown in Figs. 1-2 that it is tested the corresponding virtual sliding bearing of deep groove ball bearing shown in 1-1, is rolled with cylinder is tested shown in Fig. 2-1
The corresponding virtual sliding bearing of sub- bearing the inner ring 4 of the virtual bush(ing) bearing and is virtually radially slided as shown in Fig. 2-2
The outer ring 5 of bearing forms sliding friction pair at the face of being slidably matched 6.The virtual bush(ing) bearing is in and corresponding quilt
It surveys under the identical Test Cycle of rolling bearing, the friction power loss of the sliding friction pair is equivalent to the frictional work of tested rolling bearing
Consumption, the sliding friction torque that the friction horsepower of the sliding friction pair is equal to the sliding friction pair are virtually radially slided with described
The product of the revolution angular speed of bearing, the sliding friction torque of the sliding friction pair be equal to the face that is slidably matched radius R,
The product of the coefficient of friction of radial load and the sliding friction pair at the face that is slidably matched.By the sliding friction pair
Sliding friction torque is denoted as the equivalent friction torque of tested rolling bearing of the present invention, by the sliding of the sliding friction pair
Coefficient of friction is denoted as the equlvalent coefficient of friction of tested rolling bearing of the present invention.
Fig. 3 shows a kind of rolling bearing equlvalent coefficient of friction measuring device proposed by the present invention, which includes
Fuselage 7,8, two air-floating main shaft components of slide, mandrel 11, speed probe (being not drawn into figure) and data acquisition/processing/meter
Calculation/display system (is not drawn into) in figure.
The air-floating main shaft component includes air-floating main shaft matrix 9 and air-floating main shaft 10；Described two air-floating main shaft matrixes 9,
One of them is connected with the fuselage 7, another is connected with the slide 8, and described two air-floating main shafts 10 are coaxial；The mandrel
11 both ends pass through cone match or shaft coupling respectively and connect with described two air-floating main shafts 10, the mandrel 11 and described two
A air-floating main shaft 10 is coaxial；The mandrel 11 is equipped with the shaft shoulder 12 for installing the inner ring 1 of tested rolling bearing；The slide
The axial translation of 8 air-floating main shafts 10 described in outer power drive lower edge；Including described two air-floating main shaft components, mandrel 11 and it is tested
Components including rolling bearing together constitute the rotary axis system of measuring device of the present invention, the movement parts on the rotary axis system
Including described two air-floating main shafts 10, mandrel 11, the inner ring 1 for being tested rolling bearing, the rolling element 3 for being tested rolling bearing and it is tested
The retainer (being not drawn into figure) of rolling bearing；If the mandrel 11 is connected by shaft coupling and described two air-floating main shafts 10
It connects, then it further includes the shaft coupling that the rotary axis system, which further includes the shaft coupling, the movement parts on the rotary axis system,；It is described
Speed probe is used to monitor the angular speed of the mandrel 11 or air-floating main shaft 10；Data acquisition/processing/calculating/the display
System is used to acquire, handle the angular velocity signal of the mandrel 11 or air-floating main shaft 10 that the speed probe monitors, meter
Calculate and show the equivalent friction torque and equlvalent coefficient of friction of tested rolling bearing.
In the present invention, the rotary axis system is preferably horizontal layout, and the axis of the air-floating main shaft 10 is parallel to horizontal plane.
When carrying out equlvalent coefficient of friction measurement using rolling bearing equlvalent coefficient of friction measuring device of the present invention, also need to be arranged
Power device, the output shaft of the power device be coupled by an arrangement of clutch with the free end of one of air-floating main shaft 10 or
Separation, in the radial loading device that has been arranged radially of tested rolling bearing, above-mentioned power device, arrangement of clutch and radial loaded dress
It sets and belongs to general knowledge known in this field with the position of related components in measuring device of the present invention and connection relationship, therefore do not exist
It is drawn in figure.
The working principle of rolling bearing equlvalent coefficient of friction measuring device of the present invention are as follows: in radial loading device to tested rolling
Under the conditions of the outer ring 2 of dynamic bearing applies defined radial load, power device drives one of air bearing master by arrangement of clutch
Axis 10 turns round, and arrangement of clutch separation power device is defeated after given revolution angular speed is returned back to after air-floating main shaft 10 and mandrel 11
Shaft and air-floating main shaft 10, speed probe monitors the angular speed of 11 air-floating main shaft 10 of mandrel until air-floating main shaft 10 and mandrel 11
Stop revolution；Data acquisition/processing/calculating/display system obtains " mandrel angular speed-time " numerical relation, calculates rotating shaft
The movement velocity and kinetic energy of all movement parts are fastened, " rotary axis system total kinetic energy-time " numerical relation is obtained；To " rotary axis system
Total kinetic energy-time " numerical relation derivation, " rotary axis system total kinetic energy-time " numerical relation is at a time to the derivative of time
The as attenuating rate of rotary axis system total kinetic energy is also the frictional work under tested rolling bearing angular speed corresponding to the moment
Rate is also equivalent to the friction horsepower of the sliding friction pair of corresponding virtual bush(ing) bearing；The friction horsepower of sliding friction pair
It is equivalent friction torque of the sliding friction pair under the angular speed divided by the quotient that the magnitude of angular velocity obtains, is also equivalent to tested rolling
Equivalent friction torque of the dynamic bearing under the angular speed；Moment of friction of the sliding friction pair under the angular speed is divided by virtual radial direction
The quotient that the product of the radius R in the face that is slidably matched of sliding bearing and the radial load at the face that is slidably matched obtains is sliding friction
Coefficient of friction of the pair under the angular speed is also equivalent to equlvalent coefficient of friction of the tested rolling bearing under the angular speed；Work as gas
When the angular speed of floating main shaft 10 and mandrel 11 goes to zero, corresponding equivalent friction torque and equlvalent coefficient of friction are equivalent to tested
The starting equivalent friction torque and starting equlvalent coefficient of friction of rolling bearing.
The present invention proposes that a kind of rolling bearing equlvalent coefficient of friction measurement method, the measurement method include following step simultaneously
It is rapid:
Step 1: the inner ring 1 of tested rolling bearing is installed at the shaft shoulder 12 of mandrel 11；The both ends of mandrel 11 are distinguished
(or connecting by shaft coupling with two air-floating main shafts 10) is connect with two air-floating main shafts 10 by cone match；
Step 2: the type and size according to tested rolling bearing utilize diameter by Frictional Moment for Rolling Bearings specifications of surveys
Apply defined radial load to loading device to the outer ring of tested rolling bearing 2；
Step 3: power device drives one of air-floating main shaft 10 to turn round by arrangement of clutch, air-floating main shaft 10, mandrel
11 and tested rolling bearing inner ring 1 keep synchronous revolving；Data acquisition/processing/the calculating/display system acquisition, processing
The angular velocity signal of mandrel 11 or air-floating main shaft 10 from speed probe, is calculated and be shown the angular speed of mandrel 11；
Step 4: the rotational speed of air-floating main shaft 10 and mandrel 11 is gradually increased to given value and stable operation, clutch dress
The output shaft and air-floating main shaft 10 of separation power device are set, the rotational speed of air-floating main shaft 10 and mandrel 11 is in tested rolling bearing
Friction power loss effect under gradually decaying until air-floating main shaft 10 and mandrel 11 stop revolution, data acquisition/processing/calculating/aobvious
Show that system obtains " mandrel angular speed-time " numerical relation；
Step 5: data acquisition/processing/calculating/display system calculates the movement velocity of all movement parts on rotary axis system
And kinetic energy, obtain " rotary axis system total kinetic energy-time " numerical relation；To " rotary axis system total kinetic energy-time " numerical relation derivation,
" rotary axis system total kinetic energy-time " numerical relation is at a time the attenuating speed of rotary axis system total kinetic energy to the derivative of time
Rate is also the friction horsepower under tested rolling bearing angular speed corresponding to the moment；The friction horsepower of tested rolling bearing
The quotient obtained divided by the magnitude of angular velocity is tested equivalent friction torque of the rolling bearing under the angular speed, is tested rolling bearing
Equivalent friction torque divided by virtual bush(ing) bearing corresponding with tested rolling bearing the face that is slidably matched radius R and cunning
The quotient that the product of radial load at dynamic mating surface 6 obtains is tested equivalent friction system of the rolling bearing under the angular speed
Number；
When the angular speed of air-floating main shaft 10 and mandrel 11 goes to zero, corresponding equivalent friction torque and equivalent friction system
Number is equivalent to the starting equivalent friction torque and starting equlvalent coefficient of friction of tested rolling bearing.
Claims (4)
1. a kind of rolling bearing equlvalent coefficient of friction measuring device, which is characterized in that including fuselage (7), slide (8), two gas
Floating spindle assemblies, mandrel (11), speed probe and data acquisition/processing/calculating/display system；
The air-floating main shaft component includes air-floating main shaft matrix (9) and air-floating main shaft (10)；Described two air-floating main shaft matrixes
(9), one of them is connected with the fuselage (7), another is connected with the slide (8), and described two air-floating main shafts (10) are same
Axis；The both ends of the mandrel (11) pass through cone match or shaft coupling respectively and connect with described two air-floating main shafts (10), institute
It states mandrel (11) and described two air-floating main shafts (10) is coaxial；The mandrel (11) is equipped with for installing tested rolling bearing
The shaft shoulder (12) of inner ring (1)；The slide (8) is under outer power drive along the axial direction translation of air-floating main shaft (10)；The revolving speed passes
Sensor is used to monitor the angular speed of the mandrel (11) or air-floating main shaft (10)；Data acquisition/processing/calculating/display the system
The angular velocity signal united for acquiring, handling the mandrel (11) or air-floating main shaft (10) that the speed probe monitors,
The equivalent friction torque and equlvalent coefficient of friction of tested rolling bearing is calculated and be shown.
2. rolling bearing equlvalent coefficient of friction measuring device according to claim 1, which is characterized in that the air-floating main shaft
It (10) is horizontal layout, the axis of the air-floating main shaft (10) is parallel to horizontal plane.
3. a kind of rolling bearing equlvalent coefficient of friction measurement method, which is characterized in that using rolling as claimed in claim 1 or 2
Bearing equlvalent coefficient of friction measuring device, while it being additionally provided with power device, the output shaft of the power device passes through a clutch
Device is coupled or separates with the free end of one of air-floating main shaft (10), has been arranged radially radial add in tested rolling bearing
It carries and sets, the components including two air-floating main shaft components, mandrel (11) and tested rolling bearing together constitute described
The rotary axis system of rolling bearing equlvalent coefficient of friction measuring device, the movement parts on the rotary axis system include described two air bearings
Main shaft (10), mandrel (11), the inner ring (1) for being tested rolling bearing, the rolling element (3) and tested rolling bearing for being tested rolling bearing
Retainer；The measurement method the following steps are included:
Step 1: the inner ring (1) of tested rolling bearing is installed at the shaft shoulder (12) of mandrel (11)；By the both ends of mandrel (11)
It is connect respectively by cone match or shaft coupling with two air-floating main shafts (10)；
Step 2:, by Frictional Moment for Rolling Bearings specifications of surveys, being added using radial according to the type and size of tested rolling bearing
It carries to set to the outer ring (2) of tested rolling bearing and applies defined radial load；
Step 3: power device drives one of air-floating main shaft (10) to turn round by arrangement of clutch, air-floating main shaft (10), mandrel
(11) and the inner ring of tested rolling bearing (1) keeps synchronous revolving；Data acquisition/processing/the calculating/display system acquisition,
The angular velocity signal for handling mandrel (11) or air-floating main shaft (10) from speed probe, is calculated and be shown the angle of mandrel (11)
Speed；
Step 4: the rotational speed of air-floating main shaft (10) and mandrel (11) is gradually increased to given value, after the speed of service is stablized, from
It attaches together and sets the output shaft for separating power device and air-floating main shaft (10), the rotational speed of air-floating main shaft (10) and mandrel (11) is in quilt
It surveys under the friction power loss effect of rolling bearing and gradually decays until air-floating main shaft (10) and mandrel (11) stop revolution, data are adopted
Collection/processing/calculating/display system obtains mandrel angular speed-time numerical relation；
Step 5: data acquisition/processing/calculating/display system calculates the movement velocity of all movement parts on rotary axis system and moves
Can, obtain rotary axis system total kinetic energy-time numerical relation；To the numerical relation derivation of rotary axis system total kinetic energy-time, revolution
Shafting total kinetic energy-time numerical relation is at a time the attenuating rate of rotary axis system total kinetic energy to the derivative of time,
It also is the friction horsepower under tested rolling bearing angular speed corresponding to the moment；The friction horsepower of tested rolling bearing divided by
The quotient that the magnitude of angular velocity obtains is tested equivalent friction torque of the rolling bearing under the angular speed, and tested rolling bearing is worked as
Amount moment of friction is matched divided by the radius R in the face that is slidably matched of virtual bush(ing) bearing corresponding with tested rolling bearing with sliding
The quotient that the product of radial load at conjunction face (6) obtains is tested equlvalent coefficient of friction of the rolling bearing under the angular speed；
When the angular speed of air-floating main shaft (10) and mandrel (11) goes to zero, corresponding equivalent friction torque and equivalent friction system
Number is equivalent to the starting equivalent friction torque and starting equlvalent coefficient of friction of tested rolling bearing.
4. rolling bearing equlvalent coefficient of friction measurement method according to claim 3, which is characterized in that described virtual radial sliding
Dynamic bearing is the virtual bush(ing) bearing at the center of the rolling element (3) of the excessively tested rolling bearing of the face that is slidably matched (6),
The inner ring (4) of the virtual bush(ing) bearing and the outer ring (5) of virtual bush(ing) bearing form at the face of being slidably matched (6)
Sliding friction pair；The virtual bush(ing) bearing is under Test Cycle identical with corresponding tested rolling bearing, institute
The friction power loss for stating sliding friction pair is equivalent to the friction power loss of tested rolling bearing, the friction horsepower etc. of the sliding friction pair
In the product of the revolution angular speed of the sliding friction torque and virtual bush(ing) bearing of the sliding friction pair, the cunning
The sliding friction torque of dynamic friction pair is equal to the radius R in the face that is slidably matched, the radial load at the face that is slidably matched (6)
With the product of the coefficient of friction of the sliding friction pair；The sliding friction torque of the sliding friction pair is denoted as corresponding tested rolling
The coefficient of sliding friction of the sliding friction pair is denoted as the equivalent of corresponding tested rolling bearing by the equivalent friction torque of dynamic bearing
Coefficient of friction.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283190.7A CN109238709B (en) | 2018-10-31 | 2018-10-31 | Device and method for measuring equivalent friction coefficient of rolling bearing |
| JP2021537465A JP7043712B2 (en) | 2018-10-31 | 2019-10-29 | Measuring device and method of equivalent friction coefficient of rolling bearing |
| PCT/CN2019/113880 WO2020088431A1 (en) | 2018-10-31 | 2019-10-29 | Device for measuring equivalent friction coefficient of rolling bearing |
| US17/239,656 US20210278337A1 (en) | 2018-10-31 | 2021-04-25 | Equivalent friction coefficient measurement apparatus for rolling bearings and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283190.7A CN109238709B (en) | 2018-10-31 | 2018-10-31 | Device and method for measuring equivalent friction coefficient of rolling bearing |
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| Publication Number | Publication Date |
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| CN109238709A true CN109238709A (en) | 2019-01-18 |
| CN109238709B CN109238709B (en) | 2020-09-01 |
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| CN201811283190.7A Active CN109238709B (en) | 2018-10-31 | 2018-10-31 | Device and method for measuring equivalent friction coefficient of rolling bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088431A1 (en) * | 2018-10-31 | 2020-05-07 | 天津大学 | Device for measuring equivalent friction coefficient of rolling bearing |
| CN112484891A (en) * | 2020-12-09 | 2021-03-12 | 合肥通用机械研究院有限公司 | Dynamic seal contact surface friction rotation torque measuring device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02162241A (en) * | 1988-12-15 | 1990-06-21 | Kubota Ltd | Method for measuring friction coefficient of bearing |
| CN1687728A (en) * | 2005-05-24 | 2005-10-26 | 浙江大学 | Method and device for measuring friction force of bearing under tiny load |
| CN101126678A (en) * | 2007-09-19 | 2008-02-20 | 西南石油大学 | Roller bit floating ring bearing experiment method and device |
| KR20090112371A (en) * | 2008-04-24 | 2009-10-28 | 일신피티에프이공업(주) | A load bearing equipment friction factor measurement device of a bearing paedeu |
| CN104502271A (en) * | 2015-01-04 | 2015-04-08 | 哈尔滨工程大学 | Device for measuring friction coefficient of water-lubricated bearing with low speed and heavy load |
| CN108663210A (en) * | 2018-07-03 | 2018-10-16 | 西安轻工业钟表研究所有限公司 | The measurement method and device of a kind of bearing frictional torque and friction coefficient |
| CN207992022U (en) * | 2018-04-09 | 2018-10-19 | 西安工业大学 | A kind of equlvalent coefficient of friction measuring device |
| CN208999097U (en) * | 2018-10-31 | 2019-06-18 | 天津大学 | A kind of rolling bearing equlvalent coefficient of friction measuring device |
-
2018
- 2018-10-31 CN CN201811283190.7A patent/CN109238709B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02162241A (en) * | 1988-12-15 | 1990-06-21 | Kubota Ltd | Method for measuring friction coefficient of bearing |
| CN1687728A (en) * | 2005-05-24 | 2005-10-26 | 浙江大学 | Method and device for measuring friction force of bearing under tiny load |
| CN101126678A (en) * | 2007-09-19 | 2008-02-20 | 西南石油大学 | Roller bit floating ring bearing experiment method and device |
| KR20090112371A (en) * | 2008-04-24 | 2009-10-28 | 일신피티에프이공업(주) | A load bearing equipment friction factor measurement device of a bearing paedeu |
| CN104502271A (en) * | 2015-01-04 | 2015-04-08 | 哈尔滨工程大学 | Device for measuring friction coefficient of water-lubricated bearing with low speed and heavy load |
| CN207992022U (en) * | 2018-04-09 | 2018-10-19 | 西安工业大学 | A kind of equlvalent coefficient of friction measuring device |
| CN108663210A (en) * | 2018-07-03 | 2018-10-16 | 西安轻工业钟表研究所有限公司 | The measurement method and device of a kind of bearing frictional torque and friction coefficient |
| CN208999097U (en) * | 2018-10-31 | 2019-06-18 | 天津大学 | A kind of rolling bearing equlvalent coefficient of friction measuring device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088431A1 (en) * | 2018-10-31 | 2020-05-07 | 天津大学 | Device for measuring equivalent friction coefficient of rolling bearing |
| CN112484891A (en) * | 2020-12-09 | 2021-03-12 | 合肥通用机械研究院有限公司 | Dynamic seal contact surface friction rotation torque measuring device |
| CN112484891B (en) * | 2020-12-09 | 2022-05-31 | 合肥通用机械研究院有限公司 | Dynamic seal contact surface friction rotation torque measuring device |
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