CN208999098U - Horizontal type rolling bearing equlvalent coefficient of friction measuring device - Google Patents

Horizontal type rolling bearing equlvalent coefficient of friction measuring device Download PDF

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Publication number
CN208999098U
CN208999098U CN201821777651.1U CN201821777651U CN208999098U CN 208999098 U CN208999098 U CN 208999098U CN 201821777651 U CN201821777651 U CN 201821777651U CN 208999098 U CN208999098 U CN 208999098U
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China
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rolling bearing
tested
bearing
friction
mandrel
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CN201821777651.1U
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Chinese (zh)
Inventor
任成祖
葛翔
陈�光
陈洋
闫传滨
靳新民
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Tianjin University
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Tianjin University
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Abstract

The utility model discloses a kind of horizontal type rolling bearing equlvalent coefficient of friction measuring devices, including fuselage, slide, mandrel, two bearing blocks, ring-shaped weight, speed probe and data acquisition/processing/calculating/display system.One bearing block and fuselage are connected, another is connected with slide;Two bearing blocks are respectively equipped with the inner cylinder face with the cooperation of the outer ring of tested rolling bearing;Two inner cylinder faces are coaxial;The both ends of mandrel are respectively provided with the shaft shoulder for installing the inner ring of tested rolling bearing;Ring-shaped weight is provided on mandrel;Axial translation of the slide in the inner cylinder face of the outer described two bearing blocks of power drive lower edge;Data acquisition/processing/calculating/display system is used to acquire, handle the angular velocity signal for the mandrel that speed probe monitors, calculates A is tested rolling bearing and B is tested rolling bearing equivalent friction torque and equlvalent coefficient of friction.The utility model measuring device has the ability of fast precise measurement rolling bearing equivalent friction torque and equlvalent coefficient of friction.

Description

Horizontal type rolling bearing equlvalent coefficient of friction measuring device
Technical field
The utility model belongs to rolling bearing friction energy loss characteristic test technical field, is related to a kind of horizontal type rolling bearing and works as Measure friction coefficient measuring apparatus.
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.
Utility model content
In view of the problems of the existing technology, the utility model proposes one kind to be used for deep groove ball bearing and cylinder roller bearing Equlvalent coefficient of friction measuring device.Rolling bearing described in the utility model refers in particular to deep groove ball bearing and cylinder roller bearing.This In utility model, tested rolling bearing is abstracted as to the virtual diameter at the excessively tested rolling bearing rolling element center in the face that is slidably matched To sliding bearing, i.e., the described virtual bush(ing) bearing is the void at the excessively tested rolling bearing rolling element center in the face that is slidably matched Quasi- bush(ing) bearing, the inner ring of the virtual bush(ing) bearing and the outer ring of virtual bush(ing) bearing are being slidably matched Sliding friction pair is formed at face.The virtual bush(ing) bearing is in measurement work identical with corresponding tested rolling bearing Under condition, the friction power loss of the sliding friction pair is equivalent to the friction power loss of tested rolling bearing, and the sliding friction pair rubs It wipes power and is equal to the sliding friction torque of the sliding friction pair and multiplying for the revolution angular speed of the virtual bush(ing) bearing Product, the sliding friction torque of the sliding friction pair are equal to the radius R in the face that is slidably matched, the diameter at the face that is slidably matched To the product of load and the coefficient of friction of the sliding friction pair.The sliding friction torque of the sliding friction pair is denoted as this reality With the equivalent friction torque of the novel tested rolling bearing, the coefficient of sliding friction of the sliding friction pair is denoted as practical The equlvalent coefficient of friction of the novel tested rolling bearing.Equlvalent coefficient of friction described in the utility model has objectively responded tested The manufacture quality and clean-up performance of rolling bearing belong to the inherent characteristic of tested rolling bearing.The utility model horizontal type rolling bearing Equlvalent coefficient of friction measuring device 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 utility model proposes a kind of measurements of horizontal type rolling bearing equlvalent coefficient of friction to fill It sets, which includes fuselage, slide, mandrel, two bearing blocks, ring-shaped weight, speed probe and data acquisition/place Reason/calculating/display system;Described two bearing blocks, one of them is connected with the fuselage, another is connected with the slide; Described two bearing blocks are respectively equipped with the external cylindrical surface cooperation that be tested rolling bearing with A and B is tested the outer ring of rolling bearing Inner cylinder face;The inner cylinder face of described two bearing blocks is coaxial;The both ends of the mandrel are respectively provided with the tested rolling of installation A Bearing and B are tested the shaft shoulder of the inner ring of rolling bearing;, ring-shaped weight is provided on the mandrel;The slide is in outer power drive The axial translation of the inner cylinder face of the described two bearing blocks of lower edge;Rolling bearing is tested including the mandrel, A, B is tested the axis of rolling It holds and together constitutes the rotary axis system of the utility model measuring device with the components including ring-shaped weight, on the rotary axis system Movement parts include the mandrel, A is tested the inner ring of rolling bearing, B is tested the inner ring of rolling bearing, A is tested rolling bearing Rolling element, B are tested the rolling element of rolling bearing, A is tested the retainer of rolling bearing, B is tested the retainer and ring of rolling bearing Shape counterweight;The speed probe is used to monitor the angular speed of the mandrel;Data acquisition/processing/calculating/the display system For acquiring, handle the angular velocity signal for the mandrel that speed probe monitors, be calculated and be shown A be tested rolling bearing and B is tested the equivalent friction torque and equlvalent coefficient of friction of rolling bearing.
In the utility model, the rotary axis system is horizontal layout, and the axis of the inner cylinder face of described two bearing blocks is flat Row is in horizontal plane.
When carrying out equlvalent coefficient of friction measurement using the utility model horizontal type rolling bearing equlvalent coefficient of friction measuring device, Measurement in pairs need to be carried out twice to two tested rolling bearings;By adjusting the quality of the ring-shaped weight and its in the mandrel On axial position so that A is tested rolling bearing and B to be tested the radial branch that rolling bearing is born anti-in measurement process twice The combination linear of power is unrelated;It is propped up according in measurement process twice because two tested rolling bearings bear the radial of two groups of linear independences Different information caused by counter-force parses the equivalent friction torque and equlvalent coefficient of friction of two tested rolling bearings.
The friction horsepower of tested rolling bearing is tested divided by the quotient that the revolution magnitude of angular velocity of tested rolling bearing obtains Equivalent friction torque of the rolling bearing under the angular speed, be tested rolling bearing equivalent friction torque divided by with the tested axis of rolling The radius R and the product of the radial load at the face of being slidably matched for holding the face that is slidably matched of corresponding virtual bush(ing) bearing are obtained Quotient be tested equlvalent coefficient of friction of the rolling bearing under the angular speed, the radial load at the face that is slidably matched is suitable In the radial support reaction that corresponding tested rolling bearing is born.
Compared with prior art, the utility model has the beneficial effects that
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 on rotary axis system have rule Geometry, the size of known high precision and quality, specific motion mode and accurate movement velocity, to turn round Shafting total kinetic energy has very high computational accuracy.Therefore the equivalent friction torque of tested rolling bearing and equlvalent coefficient of friction have There is high measurement/computational accuracy.
Further, the utility model can also be by increasing the quality of the movement parts on rotary axis system to promote rotating shaft The initial kinetic energy of system, the die-away time for extending rotary axis system angular speed, further increase the measurement accuracy of rotary axis system angular speed, And then 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 tested deep groove ball bearing structural schematic diagram;
Fig. 1-2 is the virtual bush(ing) bearing of Fig. 1-1 deep groove ball bearing;
Fig. 2-1 is tested cylinder roller bearing structure schematic diagram;
Fig. 2-2 is the virtual bush(ing) bearing of Fig. 2-1 cylinder roller bearing;
Fig. 3 is the partial structural diagram of horizontal type 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- mandrel;
10- bearing block;
11- inner cylinder face;
The 12- shaft shoulder;
13- ring-shaped weight;
14-A is tested rolling bearing;
15-B is tested rolling bearing;
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.The implementation described by reference to attached drawing Example is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.In addition, following Size, material, shape and its relative configuration of the constituent part recorded in embodiment etc., such as without special specific record, and The scope of the utility model this is not only limitted to.
Rolling bearing described in the utility model includes deep groove ball bearing and cylinder roller bearing, and Fig. 1-1 shows zanjon The structure of ball bearing, Fig. 2-1 show the structure of cylinder roller bearing.In the utility model, tested rolling bearing is abstracted as The virtual bush(ing) bearing at the center of the rolling element 3 of one excessively tested rolling bearing in the face 6 that is slidably matched, i.e., the described virtual radial direction Sliding 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 It is as shown in Figs. 1-2 that the corresponding virtual sliding bearing of deep groove ball bearing is tested shown in Fig. 1-1, with tested cylinder shown in Fig. 2-1 For the corresponding virtual sliding bearing of roller bearing as shown in Fig. 2-2, the inner ring 4 of the virtual bush(ing) bearing and virtual radial direction are sliding The outer ring 5 of dynamic bearing forms sliding friction pair at the face of being slidably matched 6.By the virtual bush(ing) bearing be in it is corresponding Under the tested identical Test Cycle of rolling bearing, the friction power loss of the sliding friction pair is equivalent to the friction of tested rolling bearing Power consumption, the friction horsepower of the sliding friction pair is equal to the sliding friction torque of the sliding friction pair and the virtual radial direction is slided The product of the revolution angular speed of dynamic bearing, the sliding friction torque of the sliding friction pair are equal to the radius in the face that is slidably matched R, the product of the coefficient of friction of the radial load at the face that is slidably matched and the sliding friction pair.By the sliding friction pair Sliding friction torque be denoted as the equivalent friction torque of tested rolling bearing described in the utility model, by the sliding friction pair The coefficient of sliding friction be denoted as the equlvalent coefficient of friction of tested rolling bearing described in the utility model.
Fig. 3 show the utility model proposes a kind of horizontal type rolling bearing equlvalent coefficient of friction measuring device, the measurement Device includes fuselage 7, slide 8,9, two bearing blocks 10 of mandrel, ring-shaped weight 13, speed probe (being to draw in figure) sum number It (is drawn in figure) according to acquisition/processing/calculating/display system.
Described two bearing blocks 10, one of them is connected with the fuselage 7, another is connected with the slide 8;Described two A bearing block 10 is respectively equipped with the external cylindrical surface cooperation that be tested rolling bearing 14 with A and B is tested the outer ring of rolling bearing 15 Inner cylinder face 11;The inner cylinder face 11 of described two bearing blocks 10 is coaxial;The both ends of the mandrel 9 are respectively provided with installation A Tested rolling bearing 14 and B are tested the shaft shoulder 12 of the inner ring of rolling bearing 15;Ring-shaped weight 13 is provided on the mandrel 9;Institute State slide 8 can described two bearing blocks 10 of guidance lower edge under outer power drive and in guiding parts (being not drawn into figure) inner circle The axial translation of cylinder 11;Rolling bearing 14 is tested including the mandrel 9, A, B is tested rolling bearing 15 and ring-shaped weight 13 exists Interior components together constitute the rotary axis system of the utility model measuring device, and the movement parts on the rotary axis system include institute State mandrel 9, A is tested the inner ring of rolling bearing 14, B is tested the inner ring of rolling bearing 15, A is tested rolling element, the B of rolling bearing 14 Rolling element, the A of tested rolling bearing 15 are tested the retainer (being not drawn into figure) of rolling bearing 14, B is tested rolling bearing 14 Retainer (being not drawn into figure) and ring-shaped weight 13.The speed probe is used to monitor the angular speed of the mandrel 9;The number It is used to acquire, handle the angular speed letter for the mandrel 9 that speed probe monitors according to acquisition/processing/calculating/display system Number, the equivalent friction torque and equlvalent coefficient of friction that A is tested rolling bearing 14 and B is tested rolling bearing 15 is calculated and be shown.
In the utility model, the rotary axis system is horizontal layout, the axis of the inner cylinder face 11 of described two bearing blocks It is parallel to horizontal plane.
When carrying out equlvalent coefficient of friction measurement using the vertical rolling bearing equlvalent coefficient of friction measuring device of the utility model, Setting power device is also needed, the output shaft of the power device is joined by a free end of an arrangement of clutch and the mandrel 9 Knot or separation have been arranged radially radial loading device in tested rolling bearing.Above-mentioned power device, arrangement of clutch and axial direction add It carries to set and belongs to general knowledge known in this field with the position of related components and connection relationship in the utility model measuring device, because This is not drawn in the figure.
When carrying out equlvalent coefficient of friction measurement using the utility model horizontal type rolling bearing equlvalent coefficient of friction measuring device, Measurement in pairs need to be carried out twice to two tested rolling bearings;By adjusting the quality of the ring-shaped weight 13 and its in the core Axial position on axis 13, so that A is tested rolling bearing 14 in measurement process twice and B is tested what rolling bearing 15 was born The combination linear of radial support reaction is unrelated;According in measurement process twice because two tested rolling bearings bear two groups of linear independences Radial support reaction caused by different information parse the equivalent friction torque and equivalent friction system of two tested rolling bearings Number.
The working principle of the utility model horizontal type rolling bearing equlvalent coefficient of friction measuring device are as follows:
Firstly, the A inner ring for being tested rolling bearing 14 is installed at one end shaft shoulder 12 of mandrel, B is tested rolling bearing 15 Inner ring be installed at the other end shaft shoulder 12 of mandrel;A is tested rolling bearing 14 and B is tested the outer ring difference of rolling bearing 15 It is installed at the inner cylinder face 11 of two bearing blocks 10;Quality by adjusting ring-shaped weight 13 and its axial direction on mandrel 9 Position, so that it is respectively F that A, which is tested the radial support reaction that rolling bearing 14 and the tested rolling bearing 15 of B are born,A1And FB1;Power Device drives mandrel 9 to turn round by arrangement of clutch, and arrangement of clutch separates power after given revolution angular speed is returned back to after mandrel 9 The output shaft and mandrel 9 of device, speed probe monitors the angular speed of mandrel 9 until mandrel 9 stops revolution;Data acquisition/place Reason/calculating/display system obtains " mandrel angular speed-time " numerical relation ω (t), calculates all movement parts on rotary axis system Movement velocity and kinetic energy obtain " rotary axis system total kinetic energy-time " numerical relation;To " rotary axis system total kinetic energy-time " numerical value Relationship derivation, at a time t is that rotary axis system always moves to the derivative of time to " rotary axis system total kinetic energy-time " numerical relation The attenuating rate of energy is also that A under the angular velocity omega (t) corresponding to the moment is tested the tested rolling bearing of rolling bearing 14 and B The sum of friction horsepower under 15 angular velocity omegas (t) corresponding to the moment, to calculate acquisition, " A is tested rolling bearing and B quilt Survey the sum of friction horsepower of rolling bearing-angular speed " numerical relation P1(ω)。
Then, by adjusting the quality of ring-shaped weight 13 and its axial position on mandrel 9, so that A is tested the axis of rolling Holding 14 and B and being tested the radial support reaction that rolling bearing 15 is born is respectively FA2And FB2, FA2、FB2With FA1、FB1Linear independence;It is dynamic Power device drives mandrel 9 to turn round by arrangement of clutch, and arrangement of clutch separation is dynamic after given revolution angular speed is returned back to after mandrel 9 The output shaft and mandrel 93 of power device, speed probe monitors the angular speed of mandrel 9 until mandrel 9 stops revolution;Data acquisition/ Processing/calculating/display system obtains " mandrel angular speed-time " numerical relation ω (t), calculates all movement parts on rotary axis system Movement velocity and kinetic energy, obtain " rotary axis system total kinetic energy-time " numerical relation;To " rotary axis system total kinetic energy-time " number Value relationship derivation, at a time t is that rotary axis system is total to the derivative of time to " rotary axis system total kinetic energy-time " numerical relation The attenuating rate of kinetic energy is also tested rolling bearing 14 and B for A under the angular velocity omega (t) corresponding to the moment and is tested the axis of rolling The sum of the friction horsepower under 15 angular velocity omegas (t) corresponding to the moment is held, " A is tested rolling bearing and B to calculate acquisition The sum of friction horsepower of tested rolling bearing-angular speed " numerical relation P2(ω)。
Tested friction horsepower of the rolling bearing under certain angular speed is equivalent to the sliding of corresponding virtual bush(ing) bearing Rub secondary friction horsepower;The friction horsepower of sliding friction pair is to slide divided by the quotient that the magnitude of angular velocity of tested rolling bearing obtains Moment of friction of the dynamic friction pair under the angular speed is also equivalent to equivalent friction power of the tested rolling bearing under the angular speed Square;Sliding friction pair is in the moment of friction under the angular speed divided by the radial direction at the radius R in the face of being slidably matched and the face 6 that is slidably matched The quotient that the product of load obtains is coefficient of friction of the sliding friction pair under the angular speed, is also equivalent to tested rolling bearing and exists Equlvalent coefficient of friction under the angular speed, the radial load at the face 6 that is slidably matched are equivalent to corresponding tested rolling bearing The radial support reaction born.
Finally, according to A is tested rolling bearing 14 under above-mentioned measuring condition twice and B is tested rolling bearing 15 in frictional work The composition of the sum of rate, in measurement angular velocity range, for different angular velocity omegas1、ω2、ω3..., it is primary that binary is established respectively Equation group:
In formula, the first item of equation left side of the equal sign is the friction horsepower that A is tested rolling bearing 14, and Section 2 is tested for B The friction horsepower of rolling bearing 15, μA(ω)、μB(ω) is respectively " A is tested rolling bearing equlvalent coefficient of friction-angular speed " and " B Tested rolling bearing equlvalent coefficient of friction-angular speed " numerical relation.
It solves above-mentioned linear equation in two unknowns group and respectively obtains " A is tested rolling bearing equlvalent coefficient of friction-angular speed " numerical value pass System and " B is tested rolling bearing equlvalent coefficient of friction-angular speed " numerical relation:
According to the mechanical relationship of moment of friction and coefficient of friction, when A is tested rolling bearing 14 and tested 15 institute of rolling bearing of B When the radial load of receiving is F, " A is tested rolling bearing equivalent friction torque-angular speed " numerical relation MA(ω) and " B is tested Rolling bearing equivalent friction torque-angular speed " numerical relation MB(ω) are as follows:
When the angular speed of mandrel 9 goes to zero, corresponding equivalent friction torque and equlvalent coefficient of friction are respectively equivalent to A Tested rolling bearing 14 and B are tested the starting equivalent friction torque and starting equlvalent coefficient of friction of rolling bearing 15.
Using the utility model proposes a kind of horizontal type rolling bearing equlvalent coefficient of friction measuring device measure, step It is as follows:
Step 1: the A inner ring for being tested rolling bearing 14 is installed at one end shaft shoulder 12 of mandrel 9, B is tested the axis of rolling 15 inner ring is held to be installed at the other end shaft shoulder 12 of mandrel 9;A is tested rolling bearing 14 and the tested rolling of B by moving sliding base 8 The outer ring of bearing 15 is respectively arranged at the inner cylinder face 11 of two bearing blocks 10;
Step 2: adjusting the quality of ring-shaped weight 13 and its on mandrel 9 according to the type and size of tested rolling bearing Axial position so that it is respectively F that A, which is tested rolling bearing 14 and B to be tested the radial support reaction that rolling bearing 15 is born,A1With FB1, and meet requirement of the Frictional Moment for Rolling Bearings specifications of surveys to radial load is applied;
Step 3: power device drives mandrel 9 to turn round by arrangement of clutch, the inner ring of the tested rolling bearing 14 of mandrel 9, A, B is tested the inner ring of rolling bearing 15 and ring-shaped weight 13 keeps synchronous revolving;Data acquisition/processing/calculating/display system is adopted The angular velocity signal of collection, mandrel 9 of the processing from speed probe, is calculated and be shown the angular speed of mandrel 9;
Step 4: the rotational speed of mandrel 9 is gradually increased to given value and stable operation, arrangement of clutch separates power device Output shaft and mandrel 9, the rotational speed of mandrel 9 is tested rolling bearing 14 in A and B is tested the friction power loss of rolling bearing 15 and makees Under gradually decaying until mandrel 9 stops revolution, data acquisition/processing/calculating/display system obtain " mandrel angular speed-when Between " numerical relation ω (t);
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 at a time t be to the derivative of time rotary axis system total kinetic energy attenuating Rate is also the friction horsepower being tested under rolling bearing angular speed corresponding to the moment, to calculate acquisition " the tested rolling of A Dynamic bearing and B are tested the sum of friction horsepower of rolling bearing-angular speed " numerical relation P1(ω);
Step 6: adjusting the quality of ring-shaped weight 13 and its in mandrel 9 according to the type and size of tested rolling bearing Axial position, so that A is tested the radial support reaction that rolling bearing 14 and the tested rolling bearing 15 of B are born is respectively FA2And FB2, FA2、FB2With FA1、FB1Linear independence, and meet requirement of the Frictional Moment for Rolling Bearings specifications of surveys to radial load is applied;
Step 7: repeating Step 3: step 4 and step 5, data acquisition/processing/calculating/display system calculate in real time Acquisition " mandrel angular speed-time " numerical relation ω (t), " rotary axis system total kinetic energy-time " numerical relation, " A is tested the axis of rolling Hold the sum of friction horsepower that rolling bearing is tested with B-angular speed " numerical relation P2(ω);
Step 8: the quotient that the friction horsepower of tested rolling bearing is obtained divided by the revolution magnitude of angular velocity of tested rolling bearing is i.e. To be tested equivalent friction torque of the rolling bearing under the angular speed, be tested the equivalent friction torque of rolling bearing divided by with it is tested The radius R in the face that is slidably matched of the corresponding virtual bush(ing) bearing of rolling bearing and the radial load at the face 6 that is slidably matched The quotient that product obtains is tested equlvalent coefficient of friction of the rolling bearing under the angular speed, the diameter at the face 6 that is slidably matched The radial support reaction that corresponding tested rolling bearing is born is equivalent to load;According to the A quilt under above-mentioned measuring condition twice It surveys rolling bearing 14 and B is tested the composition of the sum of friction horsepower of rolling bearing 15, in measurement angular velocity range, for difference Angular velocity omega1、ω2、ω3..., establish linear equation in two unknowns group:
In formula, the first item of equation left side of the equal sign is the friction horsepower that A is tested rolling bearing 14, and Section 2 is tested for B The friction horsepower of rolling bearing 15, μA(ω)、μB(ω) is respectively " A is tested rolling bearing equlvalent coefficient of friction-angular speed " numerical value Relationship and " B is tested rolling bearing equlvalent coefficient of friction-angular speed " numerical relation;
" A is tested rolling bearing equlvalent coefficient of friction-angular speed " number can be respectively obtained by solving above-mentioned linear equation in two unknowns group Value relationship μA(ω) and " B is tested rolling bearing equlvalent coefficient of friction-angular speed " numerical relation μB(ω):
According to the mechanical relationship of moment of friction and coefficient of friction, when A is tested rolling bearing 14 and tested 15 institute of rolling bearing of B When the radial load of receiving is F, " A is tested rolling bearing equivalent friction torque-angular speed " numerical relation MA(ω) and " B is tested Rolling bearing equivalent friction torque-angular speed " numerical relation MB(ω) are as follows:
When the angular speed of mandrel 9 goes to zero, corresponding equivalent friction torque and equlvalent coefficient of friction are respectively equivalent to A Tested rolling bearing 14 and B are tested the starting equivalent friction torque and starting equlvalent coefficient of friction of rolling bearing 15.

Claims (2)

1. a kind of horizontal type rolling bearing equlvalent coefficient of friction measuring device, which is characterized in that including fuselage (7), slide (8), core Axis (9), two bearing blocks (10), ring-shaped weight (13), speed probe and data acquisition/processing/calculating/display system;
Described two bearing blocks (10), one of bearing block and the fuselage (7) are connected, another bearing block and the slide (8) it is connected;Described two bearing blocks (10), which are respectively equipped with, to be tested rolling bearing (14) and B with A and is tested the outer of rolling bearing (15) The inner cylinder face (11) of the external cylindrical surface cooperation of circle;The inner cylinder face (11) of described two bearing blocks (10) is coaxial;The mandrel (9) both ends are respectively provided with the shaft shoulder that installation A is tested rolling bearing (14) and the inner ring of B tested rolling bearing (15) (12);Ring-shaped weight (13) are provided on the mandrel (9);The slide (8) is in the outer described two bearing blocks of power drive lower edge (10) the axial translation of inner cylinder face (11);The speed probe is used to monitor the angular speed of the mandrel (9);The number It is used to acquire, handle the angular speed letter for the mandrel (9) that speed probe monitors according to acquisition/processing/calculating/display system Number, equivalent friction torque and the equivalent friction system that A is tested rolling bearing (14) and B is tested rolling bearing (15) is calculated and be shown Number.
2. horizontal type rolling bearing equlvalent coefficient of friction measuring device according to claim 1, which is characterized in that described two axis Holding seat (10) is horizontal layout, and the axis of the inner cylinder face (11) of described two bearing blocks (10) is parallel to horizontal plane.
CN201821777651.1U 2018-10-31 2018-10-31 Horizontal type rolling bearing equlvalent coefficient of friction measuring device Expired - Fee Related CN208999098U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109238708A (en) * 2018-10-31 2019-01-18 天津大学 Horizontal type rolling bearing equlvalent coefficient of friction measuring device and method
CN110702287A (en) * 2019-10-16 2020-01-17 中国航发哈尔滨轴承有限公司 Rotating friction torque measuring device and measuring method for paired bearings
WO2020088431A1 (en) * 2018-10-31 2020-05-07 天津大学 Device for measuring equivalent friction coefficient of rolling bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109238708A (en) * 2018-10-31 2019-01-18 天津大学 Horizontal type rolling bearing equlvalent coefficient of friction measuring device and method
WO2020088431A1 (en) * 2018-10-31 2020-05-07 天津大学 Device for measuring equivalent friction coefficient of rolling bearing
CN110702287A (en) * 2019-10-16 2020-01-17 中国航发哈尔滨轴承有限公司 Rotating friction torque measuring device and measuring method for paired bearings

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