CN108956144A - A kind of modularization crossed roller bearing temperature rise and Static stiffness test device and method - Google Patents
A kind of modularization crossed roller bearing temperature rise and Static stiffness test device and method Download PDFInfo
- Publication number
- CN108956144A CN108956144A CN201810686887.2A CN201810686887A CN108956144A CN 108956144 A CN108956144 A CN 108956144A CN 201810686887 A CN201810686887 A CN 201810686887A CN 108956144 A CN108956144 A CN 108956144A
- Authority
- CN
- China
- Prior art keywords
- displacement sensor
- bearing
- roller bearing
- crossed roller
- radial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
The invention discloses a kind of crossed roller bearing temperature rise mechanism for testing, crossed roller bearing angular rigidity mechanism for testing, axial rigidity mechanism for testing and radial rigidity mechanism for testing.The invention also discloses above-mentioned each mechanism is utilized, the method that crossed roller bearing temperature rise test, the test of crossed roller bearing angular rigidity, axial rigidity test and radial rigidity are tested is realized.The invention has the advantages that structure is simple using Modular Structure Design, function is more, the temperature rise test of crossed roller bearing can not only be carried out, but also three rigidity values can be obtained by load test, be of great significance to hot, the static characteristic of studying and test crossed roller bearing.
Description
Technical field
The invention belongs to mechanical equipment technical field, it is related to a kind of modularization crossed roller bearing temperature rise and Static stiffness test
Device, the invention further relates to a kind of modularization crossed roller bearing temperature rise and Static stiffness test methods.
Background technique
Crossed roller bearing is a kind of precision rotating unit, and not only its structure size is small, but also can bear axial direction simultaneously
Power, radial force and disturbing moment are widely used in the numerical control rotating platform of the equipment such as numerically-controlled machine tool, in the structure of joint of robot.It hands over
The temperature rise and Static stiffness of pitching roller bearing directly influence the machine system performance of lathe, robot, therefore, using effective examination
Proved recipe method accurately tests crossed roller bearing temperature characteristic and axial direction, radial rigidity and angular rigidity under different loads and revolving speed
Characteristic is of great significance.
Hot, the static characteristic parameter of crossed roller bearing are the prediction of the overall performances such as numerically-controlled machine tool, robot, bearing conjunction
The basis of reason apolegamy etc., therefore temperature rise and Static stiffness characteristic are one critically important performance parameters of crossed roller bearing.State at present
Interior outer bearing sample only seldom partially provides these data, and parameter is not complete, in this way in lathe, robot architecture's design
It reasonably selects crossed roller bearing and causes difficulty, there is an urgent need to a set of Static stiffness that can survey crossed roller bearing and hot spies
The apparatus and method for of property.
Summary of the invention
The object of the present invention is to provide a kind of modularization crossed roller bearing temperature rise and Static stiffness test device, solve existing
The equipment for thering is technology not carry out temperature rise and Static stiffness test specifically for crossed roller bearing, so that bearing sample data lacks
The problem of weary, accuracy is poor, influences its use.
It is a further object of the present invention to provide a kind of modularization crossed roller bearing temperature rise and Static stiffness test methods.
The technical solution adopted by the present invention is that
The first, a kind of crossed roller bearing temperature rise mechanism for testing, including clump weight, clump weight are fixedly mounted on turntable axis
Heart hole upper end, turntable are supported in the annular groove of pedestal top by crossed roller bearing, and crossed roller bearing outer ring is led to by top board
It crosses a circle bolt to be fixed on the base, crossed roller bearing inner ring is fixed on turntable by lower platen by another circle bolt；Turn
Platform axle center hole lower end is threadably secured with connecting shaft to be connect, and connecting shaft passes downwardly through the output axis connection of shaft coupling and motor,
Motor is fixed in base intracavity；
Pedestal upper surface is provided with the installation of TC slot, and multiple thermocouples, Ge Gere are symmetrically installed in the installation of TC slot
Galvanic couple is contacted with crossed roller bearing outer ring.
Second, a kind of crossed roller bearing angular rigidity mechanism for testing is radially provided with a flange in pedestal lower circumference
Hole is equipped with load sleeve in the flange hole, and load sleeve outer installation side is fixed by bolt and base outer wall, load sleeve
Loading bolt is equipped with by thread bush in inner hole；Torgue measurement axis, loading bolt and torque are set in turntable axle center hole downwards
Successively apical grafting has steel ball one, sensor connecting shaft and force snesor between measurement axis；Load sleeve, steel ball one, passes loading bolt
Sensor connecting shaft, force snesor are collectively referred to as loading module, and loading module herein is radially installed；
Pedestal upper surface is also diametrically symmetrically arranged with displacement sensor bracket one and displacement sensor bracket two, position
It is provided with displacement sensor one on displacement sensor bracket one, displacement sensor two is provided on displacement sensor bracket two.
The third, a kind of crossed roller bearing axial rigidity mechanism for testing is fixedly mounted in pedestal upper surface by screw
There is bracket sleeve tube, be bolted in the axle center hole of top surface on bracket sleeve tube and load sleeve is installed, leads in load sleeve inner hole
Thread bush is crossed equipped with loading bolt；Be set with connecting platform in turntable axle center hole upper end, loading bolt downwards with connecting platform it
Between be disposed with steel ball one, sensor connecting shaft, force snesor.
4th kind, a kind of crossed roller bearing radial rigidity mechanism for testing, including bearing block and radial jackshaft, intersect rolling
Sub- bearing outer ring is supported in the stepped hole of bearing block, and the top board on crossed roller bearing outer ring is fixedly connected with the bearing seat,
Crossed roller bearing inner ring is fixed by lower platen and turntable；Radial jackshaft, radial jackshaft are set in turntable axle center hole
Upper and lower ends pass through briquetting and are mounted in radial support；
It further include radial reinforcing pedestal, radial reinforce in pedestal inner hole is provided with loading bolt, loading bolt and bearing block
Steel ball one, sensor connecting shaft, radial force sensor, radial force sensor link block, steel ball two are disposed between outer wall,
The part is collectively referred to as radial force loading module；
Transverse bearing seat is provided with displacement measurement plane, i.e., by the central axes of radial jackshaft and the central axes of loading bolt
Composed plane has a displacement measurement unit in the displacement measurement Plane Installation, displacement measurement unit include displacement sensor three,
Displacement sensor four and displacement sensor five, three displacement sensors are arranged on respective magnetic support, three magnetic support absorption
On the table, displacement sensor three is located at a side of turntable, and displacement sensor five is located at another side of turntable, position
Displacement sensor four is located at transverse bearing seat side, and displacement sensor four is diametrically opposed with steel ball two；Displacement sensor three
It is used to measure the displacement of crossed roller bearing inner ring with displacement sensor five, displacement sensor four is for measuring crossed roller axis
The displacement of bearing outer-ring.
Another technical solution that the present invention uses is,
The first, a kind of crossed roller bearing method for testing temperature rise utilizes above-mentioned crossed roller bearing temperature rise test machine
Structure follows the steps below to implement:
1.1) crossed roller bearing temperature rise mechanism for testing is assembled, thermocouple is fixed；
1.2) start motor, keep tachometer value constant, change the quality size of clump weight, run 5 hours, read each heat
The temperature value of galvanic couple, is averaged, and the relation curve between bearing temperature rise and revolving speed under the conditions of drafting different loads obtains axis
The temperature rise held and rotation speed change rule；
1.3) clump weight mass conservation is kept, the revolving speed size of motor is changed, runs 5 hours, reads each thermocouple
Temperature value is averaged, and the relation curve between bearing temperature rise and load under the conditions of drafting different rotating speeds obtains the temperature of bearing
It rises and load change rule.
Second, a kind of crossed roller bearing angular rigidity test method is surveyed using above-mentioned crossed roller bearing angular rigidity
Test-run a machine structure, follows the steps below to implement:
Loading module is mounted in the flange hole of pedestal lower sides, the size for twisting loading bolt adjusting loading force is come
The size for changing loading moment, records the reading of different moment loading bottoms displacement sensor one and displacement sensor two, counts respectively
Corresponding torque load size, the deflection angle angle value of bearing are calculated, the relation curve between torque and deflection angle is then drawn,
Fitting obtains its functional relation, obtains following bearing angular rigidity value by derivation, bearing angular rigidity value calculation formula is as follows:
Mt=FtL,
In formula, θ is the deflection angle of bearing, δ1、δ1For two displacement sensor values, D be two displacement sensors it
Between distance, MtIt is tilting moment, FtFor external applied load, L is the torque arm length of moment loading, KtFor bearing angular rigidity.
The third, a kind of bearing axial rigidity test method utilizes above-mentioned crossed roller bearing axial rigidity test machine
Structure follows the steps below to implement:
3.1) axial force loading module is installed, and force snesor is zeroed；
3.2) displacement sensor one and displacement sensor two are separately mounted to displacement sensor bracket one, displacement sensor
On bracket two, adjusting parameter makes it in the measurement range of sensor；
3.3) start to load, by changing the amount of feeding of loading bolt, adjust the size of axial force, record axially different power
Act on the reading of the next displacement sensor one and displacement sensor two；It is read by ordinate, two displacement sensors of axial force
Average value is abscissa, draws change curve, functional relation is obtained by fitting, by obtaining to the functional relation derivation
To bearing axial rigidity, calculation formula is as follows:
In formula, KnFor axial rigidity value, FnFor the axial force of load, XnShift value is measured for sensor, bearing can be found out
Axial rigidity value.
4th kind, a kind of bearing radial rigidity test method utilizes above-mentioned crossed roller bearing radial rigidity test machine
Structure follows the steps below to implement:
4.1) loading module of radial force is assembled, and three magnetic stands are adsorbed onto the measurement position on workbench,
Displacement sensor three, displacement sensor four and displacement sensor five are installed, is allowed to be located in measuring surface, sets displacement sensing
Device parameter；
4.2) start to load, by changing the amount of feeding of loading bolt, change the size of radial force, record different radial forces
The reading of three displacement sensors under effect, converses the big of bearing radial deformation according to the reading of three displacement sensors
It is small, the relation curve between radial force and radial deformation is drawn, is fitted to functional relation, derivation obtains the radial rigidity of bearing
Value, calculation formula is:
X=| Xr1-Xr2|,
In formula, Xr1For the reading average value of displacement sensor three and displacement sensor five, the shift value of bearing inner race is represented；
Xr2For the shift value of bearing outer ring；FrFor radial force, KrFor radial rigidity.
The invention has the advantages that structure is simple using Modular Structure Design, function is more, can not only carry out friendship
The temperature rise test of roller bearing is pitched, and three rigidity values can be obtained by load test, to research and test crossed roller
Hot, the static characteristic of bearing are of great significance.
Detailed description of the invention
Fig. 1 is crossed roller bearing temperature rise mechanism for testing scheme of installation of the invention；
Fig. 2 is crossed roller bearing angular rigidity mechanism for testing scheme of installation of the invention；
Fig. 3 is crossed roller bearing axial rigidity mechanism for testing scheme of installation of the invention；
Fig. 4 is crossed roller bearing radial rigidity mechanism for testing scheme of installation of the invention；
Fig. 5 is crossed roller bearing angular rigidity test schematic of the invention.
In figure, 1. top boards, 2. crossed roller bearings, 3. lower platens, 4. turntables, 5. pedestals, 6. motors, 7. shaft couplings,
8. connecting shaft, 9. thermocouples, 10. clump weights, 11. displacement sensors one, 12. displacement sensor brackets one, 13. torgue measurements
Axis, 14. force snesors, 15. sensor connecting shafts, 16. steel balls one, 17. loading bolts, 18. load sleeves, 19. displacement sensings
Device two, 20. displacement sensor brackets two, 21. bracket sleeve tubes, 22. connecting platforms, 23. displacement sensors three, 24. displacement sensings
Device four, 25. displacement sensors five, 26. radial jackshafts, 27. bearing blocks, 28. radial force sensor link blocks, 29. radial directions add
Power pedestal, 30. radial supports, 31. briquettings, 32. steel balls two.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and detailed description.
If the structure of Fig. 1, crossed roller bearing temperature rise mechanism for testing of the invention are, the clump weight including quality is adjusted
10, clump weight 10 is fixedly mounted on 4 axle center hole upper end of turntable, and turntable 4 is supported on 5 top loop of pedestal by crossed roller bearing 2
In slot, 2 outer ring of crossed roller bearing by top board 1 by one circle bolt be fixed on pedestal 5,2 inner ring of crossed roller bearing by
Lower platen 3 is fixed on turntable 4 by another circle bolt；4 axle center hole lower end of turntable is threadably secured with connecting shaft 8 to be connect,
Connecting shaft 8 passes downwardly through the output axis connection of shaft coupling 7 Yu motor 6, and motor 6 is fixed in 5 inner cavity of pedestal；
The output shaft revolution of above-mentioned clump weight 10, turntable 4, crossed roller bearing 2, connecting shaft 8, shaft coupling 7 and motor 6
Axis is on the same straight line；5 upper surface of pedestal is provided with the installation of TC slot, and multiple heat are symmetrically installed in the installation of TC slot
Galvanic couple 9, each thermocouple 9 are contacted with 2 outer ring of crossed roller bearing, to detect the temperature parameter of crossed roller bearing 2.
If the structure of Fig. 2, crossed roller bearing angular rigidity mechanism for testing of the invention are, on the basis of Fig. 1, electricity is removed
Machine 6, connecting shaft 8 and shaft coupling 7 are radially provided with a flange hole in 5 lower circumference of pedestal, are equipped with loading sleeve in the flange hole
Cylinder 18,18 outer of load sleeve installation side are fixed by bolt and 5 outer wall of pedestal, pass through thread set in 18 inner hole of load sleeve
There is loading bolt 17；Torgue measurement axis 13 is set in 4 axle center hole of turntable downwards, between loading bolt 17 and torgue measurement axis 13
Successively apical grafting has steel ball 1, sensor connecting shaft 15 and force snesor 14, and loading bolt 17, steel ball 1, force snesor
14 radial centre lines are with the axis of rotation of torgue measurement axis 13 and turntable 4 in same facade；Load sleeve 18, loading bolt
17, steel ball 1, sensor connecting shaft 15, force snesor 14 are collectively referred to as loading module, and loading module herein is radial peace
Dress；
5 upper surface of pedestal is also diametrically symmetrically arranged with displacement sensor bracket 1 and displacement sensor bracket two
20, displacement sensor 1 is provided on displacement sensor bracket 1, and displacement is provided on displacement sensor bracket 2 20 and is passed
Sensor 2 19, displacement sensor 1 and displacement sensor 2 19 are opposite between 2 Internal and external cycle of crossed roller bearing for detecting
Displacement parameter.
If the structure of Fig. 3, crossed roller bearing axial rigidity mechanism for testing of the invention are, on the basis of Fig. 2, disassembly
The loading module and torgue measurement axis 13 of radially installed,
It is mounted by means of screws with bracket sleeve tube 21 in 5 upper surface of pedestal, is led in the axle center hole of top surface on bracket sleeve tube 21
It crosses bolt and is fixedly installed with load sleeve 18, pass through thread bush in 18 inner hole of load sleeve and loading bolt 17 is housed；In 4 axis of turntable
Heart hole upper end is set with connecting platform 22, and loading bolt 17 is disposed with downwards steel ball 1 between connecting platform 22, passes
Sensor connecting shaft 15, force snesor 14；
15 1 semi smooth of sensor connecting shaft is sleeved in 18 inner hole of load sleeve, i.e., load sleeve 18 connects sensor
Axis 15 play the guiding role；Steel ball 1 is placed in the taper hole at 15 upper surface center of sensor connecting shaft；Load sleeve 18, load spiral shell
Bolt 17, sensor connecting shaft 15, connecting platform 22 and turntable 4 axis of rotation on the same line；
Loading module herein be it is axially mounted, displacement sensor 1 and displacement sensor 2 19 intersect rolling for detecting
Axially opposing displacement parameter between sub- 2 Internal and external cycle of bearing；
Such as Fig. 4, crossed roller bearing radial rigidity mechanism for testing structure of the invention is, by the turntable 4 in Fig. 1, intersection
Roller bearing 2, the top board 1 for clamping bearing are removed with 3 the whole series of lower platen,
Including bearing block 27 and radial jackshaft 26,2 outer ring of crossed roller bearing is supported in the stepped hole of bearing block 27,
Top board 1 on 2 outer ring of crossed roller bearing is fixedly connected with bearing block 27,2 inner ring of crossed roller bearing by lower platen 3 with
Turntable 4 is fixed；Radial jackshaft 26 is set in 4 axle center hole of turntable, radial 26 upper and lower ends of jackshaft pass through briquetting 31 and pacify
In radial support 30；
It further include radial reinforcing pedestal 29, radial reinforce in 29 inner hole of pedestal is provided with loading bolt 17, loading bolt 17
Steel ball 1, sensor connecting shaft 15, radial force sensor 14, radial force sensing are disposed between 27 outer wall of bearing block
Device link block 28, steel ball 2 32, the part are collectively referred to as radial force loading module；
Transverse bearing seat 27 is provided with displacement measurement plane, i.e., by the central axes of radial jackshaft 26 and loading bolt 17
Plane composed by central axes has displacement measurement unit in the displacement measurement Plane Installation, and displacement measurement unit includes that displacement passes
Sensor 3 23, displacement sensor 4 24 and displacement sensor 5 25, three displacement sensors are arranged on respective magnetic support,
On the table, displacement sensor 3 23 is located at a side of turntable 4 for three magnetic support absorption, and displacement sensor 5 25, which is located at, to be turned
Another side of platform 4, displacement sensor 4 24 are located at 27 side of transverse bearing seat, displacement sensor 4 24 and 2 32 edge of steel ball
It is diametrically opposite；Displacement sensor 3 23 and displacement sensor 5 25 are used to measure the displacement of 2 inner ring of crossed roller bearing,
Displacement sensor 4 24 is used to measure the displacement of 2 outer ring of crossed roller bearing.
Four kinds of above-mentioned mechanism for testing of the present invention install different load moulds according to test needs using modular construction
Block, flexible group is allotted corresponding structure, realizes that crossed roller bearing temperature rise test, crossed roller bearing angular rigidity are tested, are axial
Rigidity test and radial rigidity test.
During following steps, crossed roller bearing 2 is referred to as bearing, 2 outer ring of crossed roller bearing and pedestal 5 use
Small―gap suture cooperation, 2 inner ring of crossed roller bearing and turntable 4 use transition fit.
Using the above-mentioned device of the present invention, bearing temperature rise test, the test of bearing angular rigidity, bearing axial rigidity are carried out respectively
Test and the test of bearing radial rigidity, follow the steps below to implement:
1, bearing temperature rise is tested:
1.1) according to Fig. 1 assembling test mechanism, thermocouple 9 is fixed；
1.2) start motor 6, keep tachometer value constant, change the quality size of clump weight 10, run 5 hours, read each
The temperature value of a thermocouple 9, is averaged, the relation curve between bearing temperature rise and revolving speed under the conditions of drafting different loads,
Obtain the temperature rise and rotation speed change rule of bearing.
1.3) 10 mass conservation of clump weight is kept, the revolving speed size of motor 6 is changed, runs 5 hours, reads each thermocouple
9 temperature value, is averaged, and the relation curve between bearing temperature rise and load under the conditions of drafting different rotating speeds obtains bearing
Temperature rise and load change rule.
2, bearing angular rigidity is tested:
According to Fig. 2, loading module is mounted in the flange hole of 5 lower sides of pedestal, twists the adjusting of loading bolt 17 and add
The size of power is carried to change the size of loading moment, records different moment loading bottoms displacement sensor 1 and displacement sensor two
19 reading calculates separately out corresponding torque load size, the deflection angle angle value of bearing, then draws torque and deflection angle
Between relation curve, fitting obtain its functional relation, following bearing angular rigidity value is obtained by derivation.As shown in figure 5,
Bearing angular rigidity value calculation formula is as follows:
Mt=Ft·L(2)
In formula, θ is the deflection angle of bearing, δ1、δ1For two displacement sensor values, D be two displacement sensors it
Between distance, MtIt is tilting moment, FtFor external applied load, L is the torque arm length of moment loading, KtFor bearing angular rigidity.
3, bearing axial rigidity is tested:
3.1) according to Fig. 3, axial loading module is installed, and force snesor 14 is zeroed；
3.2) displacement sensor 1 and displacement sensor 2 19 are separately mounted to displacement sensor bracket 1, displacement
On sensor stand 2 20, adjusting parameter makes it in the measurement range of sensor；
3.3) start to load, by changing the amount of feeding of loading bolt 17, adjust the size of axial force, record axially different
Power acts on the reading of the next displacement sensor 1 and displacement sensor 2 19；Using axial force as ordinate, two displacement sensors
The average value of reading is abscissa, draws change curve, functional relation is obtained by fitting, by asking the functional relation
It leads, obtains bearing axial rigidity, calculation formula is as follows:
In formula, KnFor axial rigidity value, FnFor the axial force of load, XnShift value is measured for sensor, bearing can be found out
Axial rigidity value.
4, bearing radial rigidity is tested:
4.1) according to the loading module of Fig. 4 assembling radial force, and three magnetic stands are adsorbed onto the survey on workbench
Position is measured, displacement sensor 3 23, displacement sensor 4 24 and displacement sensor 5 25 are installed, is allowed to be located in measuring surface,
Set displacement sensor parameter；
4.2) start to load, by changing the amount of feeding of loading bolt 17, change the size of radial force, record different radial directions
The reading of three displacement sensors under power effect, converses the big of bearing radial deformation according to the reading of three displacement sensors
It is small, the relation curve between radial force and radial deformation is drawn, is fitted to functional relation, derivation obtains the radial rigidity of bearing
Value, calculation formula is:
X=| Xr1-Xr2| (5)
In formula, Xr1For the reading average value of displacement sensor three and displacement sensor five, the shift value of bearing inner race is represented；
Xr2For the shift value of bearing outer ring；FrFor radial force, KrFor radial rigidity.
Claims (8)
1. a kind of crossed roller bearing temperature rise mechanism for testing, it is characterised in that: including clump weight (10), the fixed peace of clump weight (10)
Mounted in turntable (4) axle center hole upper end, turntable (4) is supported in the annular groove of pedestal (5) top by crossed roller bearing (2), is intersected
Roller bearing (2) outer ring is fixed on pedestal (5) by top board (1) by a circle bolt, and crossed roller bearing (2) inner ring is under
Pressing plate (3) is fixed on turntable (4) by another circle bolt；Turntable (4) axle center hole lower end is threadably secured with connecting shaft (8)
Connection, connecting shaft (8) pass downwardly through the output axis connection of shaft coupling (7) Yu motor (6), and motor (6) is fixed on pedestal (5) inner cavity
In；
Pedestal (5) upper surface is provided with the installation of TC slot, is symmetrically installed in the installation of TC slot multiple thermocouples (9), each
Thermocouple (9) is contacted with crossed roller bearing (2) outer ring.
2. a kind of crossed roller bearing method for testing temperature rise utilizes crossed roller bearing temperature rise test machine described in claim 1
Structure, which is characterized in that follow the steps below to implement:
1.1) crossed roller bearing temperature rise mechanism for testing is assembled, thermocouple (9) are fixed；
1.2) start motor (6), keep tachometer value constant, change the quality size of clump weight (10), run 5 hours, read each
The temperature value of a thermocouple (9), is averaged, and the relationship between bearing temperature rise and revolving speed under the conditions of drafting different loads is bent
Line obtains the temperature rise and rotation speed change rule of bearing；
1.3) clump weight (10) mass conservation is kept, the revolving speed size of motor (6) is changed, runs 5 hours, reads each thermocouple
(9) temperature value, is averaged, and the relation curve between bearing temperature rise and load under the conditions of drafting different rotating speeds obtains axis
The temperature rise held and load change rule.
3. a kind of crossed roller bearing angular rigidity mechanism for testing, it is characterised in that: in pedestal (5), lower circumference is radially provided with one
Flange hole is equipped with load sleeve (18) in the flange hole, and side is installed by bolt and pedestal (5) outside in load sleeve (18) outer
Wall is fixed, and loading bolt (17) are housed by thread bush in load sleeve (18) inner hole；It is set with downwards in turntable (4) axle center hole
Torgue measurement axis (13), successively apical grafting has steel ball one (16), sensor to connect between loading bolt (17) and torgue measurement axis (13)
Spindle (15) and force snesor (14)；Load sleeve (18), loading bolt (17), steel ball one (16), sensor connecting shaft (15),
Force snesor (14) is collectively referred to as loading module, and loading module herein is radially installed；
Pedestal (5) upper surface is also diametrically symmetrically arranged with displacement sensor bracket one (12) and displacement sensor bracket two
(20), it is provided with displacement sensor one (11) on displacement sensor bracket one (12), is arranged on displacement sensor bracket two (20)
There is displacement sensor two (19).
4. a kind of crossed roller bearing angular rigidity test method is surveyed using crossed roller bearing angular rigidity as claimed in claim 3
Test-run a machine structure, which is characterized in that follow the steps below to implement:
Loading module is mounted in the flange hole of pedestal (5) lower sides, twists loading bolt (17) and adjust the big of loading force
The small size to change loading moment records different moment loading bottoms displacement sensor one (11) and displacement sensor two (19)
Reading, calculates separately out corresponding torque load size, the deflection angle angle value of bearing, then draws between torque and deflection angle
Relation curve, fitting obtain its functional relation, following bearing angular rigidity value, bearing angular rigidity value meter are obtained by derivation
It is as follows to calculate formula:
Mt=FtL,
In formula, θ is the deflection angle of bearing, δ1、δ1For two displacement sensor values, D is between two displacement sensors
Distance, MtIt is tilting moment, FtFor external applied load, L is the torque arm length of moment loading, KtFor bearing angular rigidity.
5. a kind of crossed roller bearing axial rigidity mechanism for testing, it is characterised in that: fixed in pedestal (5) upper surface by screw
It is equipped with bracket sleeve tube (21), is bolted in the axle center hole of top surface on bracket sleeve tube (21) and load sleeve (18) are installed,
Loading bolt (17) are equipped with by thread bush in load sleeve (18) inner hole；It is flat that connection is set in turntable (4) axle center hole upper end
Platform (22), loading bolt (17) are disposed with downwards steel ball one (16), sensor connecting shaft between connecting platform (22)
(15), force snesor (14).
6. a kind of bearing axial rigidity test method utilizes the crossed roller bearing axial rigidity test machine described in claim 5
Structure, which is characterized in that follow the steps below to implement:
3.1) axial loading module is installed, and force snesor (14) are zeroed；
3.2) displacement sensor one (11) and displacement sensor two (19) are separately mounted to displacement sensor bracket one (12), position
On displacement sensor bracket two (20), adjusting parameter makes it in the measurement range of sensor；
3.3) start to load, by changing the amount of feeding of loading bolt (17), adjust the size of axial force, record axially different power
Act on the reading of the next displacement sensor one (11) and displacement sensor two (19)；Using axial force as ordinate, two displacement sensings
The average value of device reading is abscissa, draws change curve, functional relation is obtained by fitting, by the functional relation
Derivation obtains bearing axial rigidity, and calculation formula is as follows:
In formula, KnFor axial rigidity value, FnFor the axial force of load, XnShift value is measured for sensor, bearing axial direction can be found out
Rigidity value.
7. a kind of crossed roller bearing radial rigidity mechanism for testing, it is characterised in that: including bearing block (27) and radial jackshaft
(26), crossed roller bearing (2) outer ring is supported in the stepped hole of bearing block (27), upper on crossed roller bearing (2) outer ring
Pressing plate (1) is fixedly connected with bearing block (27), and crossed roller bearing (2) inner ring is fixed by lower platen (3) and turntable (4)；Turn
It is set with radial jackshaft (26) in platform (4) axle center hole, radial jackshaft (26) upper and lower ends pass through briquetting (31) and are mounted on
In radial support (30)；
It further include radial reinforcing pedestal (29), radial reinforce in pedestal (29) inner hole is provided with loading bolt (17), loading bolt
(17) steel ball one (16), sensor connecting shaft (15), radial force sensor are disposed between bearing block (27) outer wall
(14), radial force sensor link block (28), steel ball two (32), the part are collectively referred to as radial force loading module；
Transverse bearing seat (27) is provided with displacement measurement plane, i.e., by the central axes of radial jackshaft (26) and loading bolt (17)
Central axes composed by plane, have a displacement measurement unit in the displacement measurement Plane Installation, displacement measurement unit includes displacement
Sensor three (23), displacement sensor four (24) and displacement sensor five (25), three displacement sensors are arranged at respectively
Magnetic support on, on the table, displacement sensor three (23) is located at a side of turntable (4), displacement biography to the absorption of three magnetic supports
Sensor five (25) is located at another side of turntable (4), and displacement sensor four (24) is located at transverse bearing seat (27) side, displacement
Sensor four (24) is diametrically opposed with steel ball two (32)；Displacement sensor three (23) and displacement sensor five (25) are used for
The displacement of crossed roller bearing (2) inner ring is measured, displacement sensor four (24) is for measuring crossed roller bearing (2) outer ring
Displacement.
8. a kind of bearing radial rigidity test method utilizes crossed roller bearing radial rigidity test machine as claimed in claim 7
Structure, which is characterized in that follow the steps below to implement:
4.1) loading module of radial force is assembled, and three magnetic stands are adsorbed onto the measurement position on workbench, is installed
Good displacement sensor three (23), displacement sensor four (24) and displacement sensor five (25) are allowed to be located in measuring surface, set
Displacement sensor parameter；
4.2) start to load, by changing the amount of feeding of loading bolt (17), change the size of radial force, record different radial forces
The reading of three displacement sensors under effect, converses the big of bearing radial deformation according to the reading of three displacement sensors
It is small, the relation curve between radial force and radial deformation is drawn, is fitted to functional relation, derivation obtains the radial rigidity of bearing
Value, calculation formula is:
X=| Xr1-Xr2|,
In formula, Xr1For the reading average value of displacement sensor three (23) and displacement sensor five (25), the position of bearing inner race is represented
Shifting value；Xr2For the shift value of bearing outer ring；FrFor radial force, KrFor radial rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686887.2A CN108956144B (en) | 2018-06-28 | 2018-06-28 | Device and method for testing temperature rise and static rigidity of modular crossed roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686887.2A CN108956144B (en) | 2018-06-28 | 2018-06-28 | Device and method for testing temperature rise and static rigidity of modular crossed roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108956144A true CN108956144A (en) | 2018-12-07 |
| CN108956144B CN108956144B (en) | 2020-09-25 |
Family
ID=64487423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810686887.2A Active CN108956144B (en) | 2018-06-28 | 2018-06-28 | Device and method for testing temperature rise and static rigidity of modular crossed roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108956144B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595776A (en) * | 2019-10-28 | 2019-12-20 | 北京昆腾迈格技术有限公司 | Axial magnetic bearing rigidity testing device |
| CN112964467A (en) * | 2019-11-01 | 2021-06-15 | 韩军伟 | Bearing rotation testing method |
| CN113281043A (en) * | 2021-04-28 | 2021-08-20 | 重庆长江轴承股份有限公司 | Bearing dynamic stiffness testing device |
| CN114034540A (en) * | 2021-06-21 | 2022-02-11 | 重庆康佳光电技术研究院有限公司 | Chip performance testing method and device |
| CN114623870A (en) * | 2022-03-02 | 2022-06-14 | 中建国际建设有限公司 | Structural member system capable of defining axial rigidity and use method thereof |
| CN117433783A (en) * | 2023-08-29 | 2024-01-23 | 大连海事大学 | Tapered roller bearing positioning pre-tightening adjustment method and device based on axial rigidity detection |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008249664A (en) * | 2007-03-30 | 2008-10-16 | Nsk Ltd | Evaluation device and evaluation method for rigidity of rolling bearing unit |
| CN101865766A (en) * | 2010-06-30 | 2010-10-20 | 西安理工大学 | Static stiffness test device of modularized cutter handle combining part |
| CN101893512A (en) * | 2010-07-05 | 2010-11-24 | 西安理工大学 | Modularized static stiffness testing device for angular contact ball bearings |
| CN102410923A (en) * | 2011-08-09 | 2012-04-11 | 西安理工大学 | Rigid and non-linear relation testing device and method of cylindrical fit joint surface |
| CN102937488A (en) * | 2012-11-19 | 2013-02-20 | 上海交通大学 | Real-time measuring device and method capable of measuring dynamic oil membrane pressure distribution and temperature of tilting-pad sliding bearings |
| CN202903357U (en) * | 2012-10-18 | 2013-04-24 | 中国航空动力机械研究所 | Installing structure of thermocouple for measuring temperature of outer ring of bearing |
| CN104075886A (en) * | 2014-06-24 | 2014-10-01 | 西安理工大学 | Modularized rolling linear guide rail pair combination part static rigidity test method and device |
| CN208399143U (en) * | 2018-06-28 | 2019-01-18 | 西安理工大学 | A kind of modularization crossed roller bearing temperature rise and Static stiffness test device |
-
2018
- 2018-06-28 CN CN201810686887.2A patent/CN108956144B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008249664A (en) * | 2007-03-30 | 2008-10-16 | Nsk Ltd | Evaluation device and evaluation method for rigidity of rolling bearing unit |
| CN101865766A (en) * | 2010-06-30 | 2010-10-20 | 西安理工大学 | Static stiffness test device of modularized cutter handle combining part |
| CN101893512A (en) * | 2010-07-05 | 2010-11-24 | 西安理工大学 | Modularized static stiffness testing device for angular contact ball bearings |
| CN102410923A (en) * | 2011-08-09 | 2012-04-11 | 西安理工大学 | Rigid and non-linear relation testing device and method of cylindrical fit joint surface |
| CN202903357U (en) * | 2012-10-18 | 2013-04-24 | 中国航空动力机械研究所 | Installing structure of thermocouple for measuring temperature of outer ring of bearing |
| CN102937488A (en) * | 2012-11-19 | 2013-02-20 | 上海交通大学 | Real-time measuring device and method capable of measuring dynamic oil membrane pressure distribution and temperature of tilting-pad sliding bearings |
| CN104075886A (en) * | 2014-06-24 | 2014-10-01 | 西安理工大学 | Modularized rolling linear guide rail pair combination part static rigidity test method and device |
| CN208399143U (en) * | 2018-06-28 | 2019-01-18 | 西安理工大学 | A kind of modularization crossed roller bearing temperature rise and Static stiffness test device |
Non-Patent Citations (1)
| Title |
|---|
| 王玉国 等: "YRT型转台轴承负游隙下的刚度分析计算", 《哈尔滨轴承》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595776A (en) * | 2019-10-28 | 2019-12-20 | 北京昆腾迈格技术有限公司 | Axial magnetic bearing rigidity testing device |
| CN112964467A (en) * | 2019-11-01 | 2021-06-15 | 韩军伟 | Bearing rotation testing method |
| CN113281043A (en) * | 2021-04-28 | 2021-08-20 | 重庆长江轴承股份有限公司 | Bearing dynamic stiffness testing device |
| CN113281043B (en) * | 2021-04-28 | 2023-06-06 | 重庆长江轴承股份有限公司 | Dynamic stiffness testing device for bearing |
| CN114034540A (en) * | 2021-06-21 | 2022-02-11 | 重庆康佳光电技术研究院有限公司 | Chip performance testing method and device |
| CN114623870A (en) * | 2022-03-02 | 2022-06-14 | 中建国际建设有限公司 | Structural member system capable of defining axial rigidity and use method thereof |
| CN117433783A (en) * | 2023-08-29 | 2024-01-23 | 大连海事大学 | Tapered roller bearing positioning pre-tightening adjustment method and device based on axial rigidity detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108956144B (en) | 2020-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108956144A (en) | A kind of modularization crossed roller bearing temperature rise and Static stiffness test device and method | |
| CN110160788B (en) | Rolling bearing slipping research experiment table | |
| CN101487751B (en) | Measuring apparatus for frictional moment of bearing under different axial loads and rotation speeds | |
| CN101893512B (en) | Modularized static stiffness testing device for angular contact ball bearings | |
| CN201364214Y (en) | Starting friction force moment checking machine of wind-driven generator rotary table bearings | |
| CN205898448U (en) | Line gear transmission test bench | |
| CN201364215Y (en) | Friction moment measuring device of bearing under different axial loads and rotating speed | |
| CN207991489U (en) | A kind of running accuracy measuring device of bearing | |
| CN103543010A (en) | High-speed screw and screw pair comprehensive examination test bed | |
| CN105444949B (en) | A kind of rotary inertia testboard based on torque sensor | |
| CN110296838A (en) | Bearing shell testing machine for testing performance and test method | |
| CN208399143U (en) | A kind of modularization crossed roller bearing temperature rise and Static stiffness test device | |
| CN110542556A (en) | Tilting pad sliding bearing test box, test bench and test method | |
| CN110887590B (en) | High-speed bearing friction tester | |
| CN209131969U (en) | Multifunction flexible gearbox test macro | |
| CN214250916U (en) | Shaft part measuring device with center hole as axis reference | |
| CN109187330B (en) | Method for measuring friction coefficient under variable working condition | |
| CN207487613U (en) | A kind of high-precision bearing contact angle measurement | |
| CN108709683A (en) | The flexible torque sensor dynamic test platform in module oriented approach joint | |
| CN107991045A (en) | Line contact slide frictional vibration noise fest platform | |
| CN114878163B (en) | Dynamic and static synchronous loading testing device for high-precision dynamic pressure thrust foil bearing | |
| CN211402009U (en) | Rotation type mechanical friction interface normal position information acquisition device | |
| CN109612631A (en) | Engine moment inertia measuring device | |
| CN212932341U (en) | Friction coefficient testing machine | |
| CN215865819U (en) | Sliding bearing limit PV value tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |