CN106595433B - A kind of measurement method and measuring device of bearing inner race circular runout - Google Patents
A kind of measurement method and measuring device of bearing inner race circular runout Download PDFInfo
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- CN106595433B CN106595433B CN201611105195.1A CN201611105195A CN106595433B CN 106595433 B CN106595433 B CN 106595433B CN 201611105195 A CN201611105195 A CN 201611105195A CN 106595433 B CN106595433 B CN 106595433B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
- G01B5/146—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures measuring play on bearings
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Abstract
The present invention relates to the measurement methods and measuring device of a kind of bearing inner race circular runout, the measuring device includes support frame, mandrel, measuring part and the mounting rack installed for measuring part, the measuring part includes the not conllinear measuring part of at least two measurement directions, mounting rack is equipped with the elastic top-pressure part for the outer ring rotation stop location fit with measured bearing, when elastic top-pressure part is the elastic component separately set, measuring part is non-contact measurement component, when one of measuring part is contact type measurement component, the measuring head of contact type measurement component forms the elastic top-pressure part, remaining measuring part is non-contact measurement component at this time.The different measuring part of at least two measurement directions measures the displacement of the outer ring of measured bearing, then vector sum is sought, the circular runout value of measured bearing inner ring is obtained with this, the circular runout value for the inner ring for using the measurement method to obtain is true measured bearing inner ring circular runout value.
Description
Technical field
The present invention relates to the measurement methods and measuring device of a kind of bearing inner race circular runout.
Background technique
Bearing inner race radial beat eccentricity is the important parameter index for judging bearing rotation precision, and the height of running accuracy is diameter
To preload, the important references index of axial pretightening, the size of preload amount is not only determined, while also influencing the choosing of precision bearing
With the assembling of, bearing, the installation of bearing and adjustment etc..
Authorization Notice No. is that the Chinese utility model patent of 203824457 U of CN discloses a kind of bearing inner race radially jump
Motion detection device, including bracket, mandrel clamp assemblies and amesdial, amesdial, that is, measuring part, amesdial pass through amesdial branch
Frame is fixed, dial indicators rack, that is, mounting rack, and one end of mandrel and measured bearing are interference fitted, and the other end of mandrel is equipped with handwheel,
The pointer end of amesdial touches the measured bearing outer ring on mandrel, when detection, it is only necessary to measured bearing is placed on mandrel,
Rotation hand wheel, band moving mandrel rotate a circle, and the difference of the minimum and maximum reading of amesdial is the circular runout of bearing inner race.Cause
What is done by bearing outer ring is plane motion, i.e., there is displacement in the horizontal and vertical directions, only right using an amesdial
The measurement that circular runout displacement is carried out on one direction, can not accurately, truly react the circular runout of bearing inner race.
Summary of the invention
The purpose of the present invention is to provide a kind of measurement methods of the more accurate bearing inner race circular runout of measurement result；
The object of the invention is also to provide a kind of measuring devices of bearing inner race circular runout simultaneously.
To achieve the above object, a kind of technical solution of the measurement method of bearing inner race circular runout of the invention is: one
The measurement method of kind bearing inner race circular runout, comprising the following steps:
1) measured bearing inner ring is installed on mandrel, and the not conllinear measuring part of at least two measurement directions is to measured bearing
Outer ring carries out the measurement of radial displacement, the outer ring rotation stop location fit of elastic top-pressure part and measured bearing；
2) when one of measuring part is contact type measurement component, the measuring head of the contact type measurement component forms described
Elastic top-pressure part, remaining measuring part are non-contact measurement component；When elastic top-pressure part is the elastic component separately set, measuring part
It is non-contact measurement component；
3) it turns an angle manually or by driving mechanism band moving mandrel, records the measuring part in each measurement direction
Circular runout displacement, and vector sum is sought, obtain the circular runout value of measured bearing inner ring.
Elastic pressure end in step 2 is made of the measuring head of contact type measurement component, and contact type measurement component is contact
Formula displacement sensor, the measuring head of tangent displacement sensor include the contact of tangent displacement sensor and the bullet of contact rear end
Property component.
The non-contact measurement component is infrared linear movement pick-up.
There are two measuring parts in the step 1), and the measurement direction of a measuring part is by measured bearing inner ring
First diameter, the measurement direction of another measuring part pass through the second diameter of measured bearing inner ring, and first diameter is straight with second
The angle of diameter is 90 degree.
Rotational angle by the encoder air plug gauge for capableing of set angle range being set on mandrel, mandrel turn over
The measured value that pulse signal makes data processor acquire each measuring part is sent to data processor when set angle.
A kind of technical solution of the measuring device of bearing inner race circular runout of the invention is: a kind of bearing inner race radially jump
Dynamic measuring device, mandrel, measurement including support frame, rolling assembling in the inner ring for installing measured bearing on support frame
Component and the mounting rack installed for measuring part, the measuring part includes the not conllinear measurement portion of at least two measurement directions
Part, mounting rack is equipped with the elastic top-pressure part for the outer ring rotation stop location fit with measured bearing, when elastic top-pressure part is another
If elastic component when measuring part be non-contact measurement component, when one of measuring part be contact type measurement component when
The measuring head of contact type measurement component forms the elastic top-pressure part, remaining measuring part is non-contact measurement component at this time.
The contact type measurement component is tangent displacement sensor, and the measuring head of tangent displacement sensor includes contact
The contact of formula displacement sensor and the elastomeric element of contact rear end.
There are two the measuring parts, and the measurement direction of a measuring part passes through the first diameter of measured bearing inner ring,
The measurement direction of another measuring part passes through the second diameter of measured bearing inner ring, and the angle of first diameter and second diameter is
90 degree.
The mounting rack is equipped with C-channel, the notch of C-channel formed for for measured bearing radially into enter and tie
Structure.
The measuring device further includes data processor, and data processor and the sampling of each measuring part connect, on the mandrel
Being provided with set angle value range and can be capable of the encoder of air plug gauge rotational angle, encoder and data processor signal
Connection, when mandrel goes to set angle, encoder, which sends pulse signal to data processor, makes data processor read each measurement
The measured value of component.
The beneficial effects of the present invention are: the inner ring of measured bearing is mounted on mandrel, at least two measurement directions are different
Measuring part measures the displacement of the outer ring of measured bearing, then seeks vector sum, and the diameter of measured bearing inner ring is obtained with this
To jitter values, the circular runout value for the inner ring for using the measurement method to obtain is the circular runout of true measured bearing inner ring
Value.
Detailed description of the invention
Fig. 1 is a kind of shaft side figure 1 of one embodiment of the measuring device of bearing inner race circular runout of the invention；
Fig. 2 is a kind of shaft side figure 2 of one embodiment of the measuring device of bearing inner race circular runout of the invention；
Fig. 3 is a kind of shaft side figure 3 of one embodiment of the measuring device of bearing inner race circular runout of the invention；
Fig. 4 is the structural schematic diagram of driving lever drive plate；
Fig. 5 is the mounting structure schematic diagram of driving lever drive plate and elastic webbing.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment of the measuring device of bearing inner race circular runout of the invention, as shown in Figures 1 to 5, packet
Include workbench 1, the support frame being oppositely arranged that is set on workbench 1, both ends rolling assembling on support frame for for quilt
It surveys the mandrel 21 of the inner ring installation of bearing 19, driving mechanism, mounting rack, the measuring part being set on mounting rack, be set to core
The data processor that encoder 16 and measuring part sampling on axis 21 are connected and connect with 16 signal of encoder.Support frame packet
The first support frame 2 and the second support frame 3 are included, each support frame passes through support frame fixing screws and is connected on workbench 1, and first
Support 2 is equipped with first top, and the second support frame 3 is equipped with can be relative to the second top of the first top movement, and second
The handwheel 14 for driving the second top movement is additionally provided on support 3 and for carrying out axis to it after the second top position is adjusted
To the fixed knob 15 of limit.
Driving mechanism includes motor 4, and the output shaft of motor 4 is equipped with drive pulley 5, and measuring device further includes passing through axis
22 rotational installations are held in the rotating wheel 6 on the first support frame 2, are connected between rotating wheel 6 and drive pulley 5 by belt 20,
Drive pulley 5, belt 20 and rotating wheel 6 are formed together belt speed reducer structure.Drive pulley 5 is by 4 output shaft of motor
Taper be fixed in the above, the diameter of drive pulley 5 is less than the diameter of rotating wheel 6.It is provided with driving lever 8 on rotating wheel 6 and sets
The driving lever drive plate 9 being placed on mandrel 21, driving lever 8 and the transmission cooperation of driving lever drive plate 9 are dialled so that power to be transferred on mandrel 21
Bar drive plate 9 is circumferentially with a circle elastic webbing 10, and the setting of elastic webbing 10 guarantees to lead between driving lever 8 and driving lever drive plate 9
Cross elastomer and carry out Elastic Contact, so as not to driving lever 8 directly impinge cause to vibrate larger or impact force on driving lever drive plate 9 it is larger
So that cause biggish measurement error, it is inaccurate so as to cause measurement result.The structure of driving lever drive plate 9 such as Fig. 4 and Fig. 5 institute
Show, including substrate 9-1 and with the elastic webbing supporter 9-2 of the tubulose of substrate 9-1 integrally connected, substrate 9-1 is equipped with and mandrel
The substrate mounting holes of installation, substrate 9-1 include the top 9-3 of substrate being arranged along the axisymmetrical of elastic webbing supporter 9-2, substrate
Top 9-3 extends outwardly along the radial direction of elastic webbing supporter 9-2, in towards elastic webbing supporter on each top 9-3 of substrate
The side of 9-2 is provided with pin shaft 9-4, and the axis of pin shaft 9-4 is parallel with the axis of elastic webbing supporter 9-2 and relative to elasticity
Axisymmetrical with supporter 9-2, the part between the top 9-3 of upper two substrates of substrate 9-1 are arc transition section 9-5.Elasticity
Be installed on 10 on the lateral surface of two pin shaft 9-4 and elastic webbing supporter 9-2, on elastic webbing 10 with the installation place of pin shaft 9-4
Transmission tip is formed, each side for contacting with corresponding driving lever 8 for being driven tip is parallel to each other and forms transmission mating surface 24,
Transmission mating surface 24 is inclined-plane, and transmission mating surface is set as more stable when inclined-plane is to contact driving lever with elastic webbing, reduces
Shock and vibration.Driving lever 8 there are two and relative to the center symmetric setting of driving lever drive plate 9 on driving lever drive plate 9.
Mounting rack 7 have for for measured bearing 19 radially into C-channel, the notch of C-channel formed for measured axis
Hold radially into entrance structure, measuring part includes tangent displacement sensor 18 and non-contact displacement transducer 11 and edge
The circumferential direction of C-channel is that the measurement direction of tangent displacement sensor 18 passes through the first diameter of measured bearing in 90 degree of distributions, non-
The measurement direction of tangent displacement sensor 11 passes through the second diameter of measured bearing, and first diameter and second diameter are vertical, C-shaped
The cell wall of slot is equipped with the first through hole for installing for tangent displacement sensor 18 and is used for for noncontacting proximity sensor 11
Second through-hole of installation has been arranged radially on the hole wall of each through-hole and has adjusted screw hole 25, adjusts to be equipped in screw hole 25 and is used for
The fastening screw of corresponding displacement sensor is fastened, the measuring head of tangent displacement sensor 18 includes the bullet of contact and contact rear end
Property component, measuring head formed for the outer ring disc elastic top press-fit with measured bearing 19 to measured bearing outer ring rotation stop
Position and apply the elastic top-pressure part of certain pressing force.Since the revolving speed of mandrel 21 in measurement process is slower, it is possible to
It can be real by the frictional force that the pressure between the measuring head of tangent displacement sensor 18 and the outer ring of measured bearing 19 generates
It is now limited in the rotation of the outer ring of measured bearing 19 in measurement process, non-contact displacement transducer 11 is specially infrared induction
Displacement sensor.Mounting rack 7 is set on workbench 1, is additionally provided with locating piece 23 on workbench 1, locating piece 23 have for
For 7 location fit of support frame so that the center line of C-channel is overlapped with the center line of mandrel 21, the bottom of mounting rack 7 is equipped with long hole 12,
It is correspondingly arranged on connecting hole with long hole 12 on workbench 1, is fixed on the worktable mounting rack 7 by connection bolt 13.
Data processor includes microcomputer and the exclusive data acquisition software that is mounted in microcomputer, encoder
16 stator 17 is connected on mounting rack 7, and the rotor of encoder 16 is installed on mandrel 21, encoder 16 and each displacement sensor
It is connect with acquisition software signal.The pulse signal of encoder 16 is set, once, encoder 16 is to number for the every rotation of measured bearing 19
As soon as issuing a pulse signal according to acquisition software, data acquisition software reads the data of primary each displacement sensor, at data
Reason is achieved with measured bearing inner ring circular runout value under this angle, and so on, after measured bearing 19 rotates a circle, so that it may
Obtain inner ring circular runout value of the measured bearing 19 under each angle.Mandrel 21 has certain taper, measured bearing 19
Inner ring, driving lever drive plate 9 and encoder 16 are to be fixed by the taper of mandrel 21 itself, therefore be mounted on mandrel
Device on 21 can only be installed by one end of mandrel 21.
The course of work of the measuring device of a kind of bearing inner race circular runout of the invention are as follows: open motor 4, pass through belt
20 drive rotating wheel 6 to rotate, and driving lever 8 also rotates with it, and driving lever 8 and 10 Elastic Contact of elastic webbing make driving lever drive plate 9 together with core
Axis 21 rotates together, and then drives the rotation of 19 inner ring of measured bearing, sets the pulse signal of encoder 16, every turn of measured bearing 19
It moves once, as soon as encoder 16 issues a pulse signal to data acquisition software, data acquisition software reads primary each be displaced and passes
The data of sensor are achieved with the inner ring circular runout value under this angle of bearing 19, the rotation of measured bearing 19 one through data processing
Zhou Hou, so that it may obtain inner ring circular runout value of the measured bearing 19 under each angle.
The measurement method of a kind of bearing inner race circular runout of the invention are as follows: the 1) inner ring of measured bearing 19 is installed on mandrel
On 21, two orthogonal displacement sensors of measurement direction survey the circular runout displacement of the outer ring of measured bearing 19
Amount, the outer ring rotation stop and compression fit of elastic top-pressure part and measured bearing；2) one of measuring part is that contact displacement passes
Sensor, the measuring head of tangent displacement sensor 18 form the elastic top-pressure part, another measuring part is contactless position
Displacement sensor 11；3) it is turned an angle by driving mechanism band moving mandrel 21, records the displacement sensor in each measurement direction
Circular runout displacement, and seek vector sum, obtain the circular runout value of 19 inner ring of measured bearing.
In other embodiments of the invention, rotating wheel can be replaced by gear, and drive pulley is by driving gear at this time
Instead of, driving gear and rotate gear engaged transmission and form deceleration mechanism；The quantity of driving lever can be adjusted according to actual needs
Section, or one or three and three or more；When meeting requirement, elasticity can also be not provided on driving lever drive plate
Band can also coat one layer of elastic webbing on driving lever or rubber layer one plays the role of elastomer；When the revolving speed of motor is lower,
The diameter of drive pulley can also be equal to or more than the diameter of rotating wheel；C-channel on mounting rack can also be by round hole generation
It replaces, round hole, which is formed, at this time enters structure；Tangent displacement sensor can also be replaced by amesdial, at this time the contact of amesdial
Measuring head is formed with the elastomeric element after contact, measuring head forms elastic pressure end；Displacement sensor can also only include two
Non-contact displacement transducer is separately set at this time by elastic component on mounting rack to play the role of elastic top-pressure part；Infrared ray sense
Answer displacement sensor that can also be replaced by laser displacement sensor to play the role of noncontacting proximity sensor；Contact displacement passes
Angle between the measurement direction of sensor and the measurement direction of non-contact displacement sensor can also be adjusted according to the actual situation
It is whole, but to guarantee that the measurement direction of the two is not conllinear；The quantity of non-contact displacement transducer can be adjusted according to actual needs
It is whole；Top on support frame can be axial restraint, at this time can be relative to another support at least one support frame
Frame movement；First is top and second is top can also be rolling center；It, can also on workbench in the case where not influencing use
To be not provided with locating piece；Driving mechanism can also be replaced by handwheel, and handwheel band moving mandrel rotates at this time.
Claims (10)
1. a kind of measurement method of bearing inner race circular runout, it is characterised in that: include the following steps,
1) measured bearing inner ring is installed on mandrel, and the not conllinear measuring part of at least two measurement directions is to measured bearing outer ring
Carry out the measurement of radial displacement, the outer ring rotation stop location fit of elastic top-pressure part and measured bearing；
2) when one of measuring part is contact type measurement component, the measuring head of the contact type measurement component forms the elasticity
Top-pressure part, remaining measuring part are non-contact measurement component；When elastic top-pressure part is the elastic component separately set, measuring part is
Non-contact measurement component；
3) it turns an angle manually or by driving mechanism band moving mandrel, records the radial direction of the measuring part in each measurement direction
Bounce displacement, and vector sum is sought, obtain the circular runout value of measured bearing inner ring.
2. a kind of measurement method of bearing inner race circular runout according to claim 1, it is characterised in that: in step 2
Elastic top-pressure part is made of the measuring head of contact type measurement component, and contact type measurement component is tangent displacement sensor, contact
The measuring head of formula displacement sensor includes the contact of tangent displacement sensor and the elastomeric element of contact rear end.
3. a kind of measurement method of bearing inner race circular runout according to claim 1, it is characterised in that: described non-contact
Formula measuring part is infrared linear movement pick-up.
4. a kind of measurement method of bearing inner race circular runout according to claim 1, it is characterised in that: the step 1)
In measuring part there are two, the measurement direction of a measuring part passes through the first diameter of measured bearing inner ring, another survey
The measurement direction for measuring component passes through the second diameter of measured bearing inner ring, and the angle of first diameter and second diameter is 90 degree.
5. a kind of measurement method of bearing inner race circular runout according to claim 1-4, it is characterised in that: logical
The rotational angle for crossing the encoder air plug gauge for capableing of set angle range being set on mandrel, when mandrel turns over set angle
The measured value that pulse signal makes data processor acquire each measuring part is sent to data processor.
6. a kind of measuring device of bearing inner race circular runout is used to install including support frame, rolling assembling on support frame
Mandrel, measuring part and the mounting rack for measuring part installation of the inner ring of measured bearing, it is characterised in that: the measuring part
Including the not conllinear measuring part of at least two measurement directions, mounting rack is equipped with for positioning with the outer ring rotation stop of measured bearing
The elastic top-pressure part of cooperation, when elastic top-pressure part is the elastic component separately set, measuring part is non-contact measurement component, when
The measuring head of contact type measurement component forms the elastic top-pressure part when one of measuring part is contact type measurement component, this
Shi Qiyu measuring part is non-contact measurement component.
7. a kind of measuring device of bearing inner race circular runout according to claim 6, it is characterised in that: the contact
Measuring part is tangent displacement sensor, and the measuring head of tangent displacement sensor includes the contact of tangent displacement sensor
With the elastomeric element of contact rear end.
8. a kind of measuring device of bearing inner race circular runout according to claim 6, it is characterised in that: the measurement portion
There are two parts, and the measurement direction of a measuring part passes through the first diameter of measured bearing inner ring, the survey of another measuring part
The second diameter that measured bearing inner ring is passed through in direction is measured, the angle of first diameter and second diameter is 90 degree.
9. a kind of measuring device of bearing inner race circular runout according to claim 6, it is characterised in that: the mounting rack
Be equipped with C-channel, the notch of C-channel formed for for measured bearing radially into entrance structure.
10. according to a kind of described in any item measuring devices of bearing inner race circular runout of claim 6-9, it is characterised in that:
The measuring device further includes data processor, and data processor and the sampling of each measuring part connect, and is provided with energy on the mandrel
Enough set angle value ranges and the encoder for capableing of air plug gauge rotational angle, encoder are connect with data processor signal, when
Encoder, which sends pulse signal to data processor, when mandrel goes to set angle makes data processor read each measuring part
Measured value.
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| CN201611105195.1A CN106595433B (en) | 2016-12-05 | 2016-12-05 | A kind of measurement method and measuring device of bearing inner race circular runout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105195.1A CN106595433B (en) | 2016-12-05 | 2016-12-05 | A kind of measurement method and measuring device of bearing inner race circular runout |
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| CN106595433A CN106595433A (en) | 2017-04-26 |
| CN106595433B true CN106595433B (en) | 2019-02-26 |
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| CN114777706B (en) * | 2022-05-30 | 2024-04-05 | 山东洛轴所轴承研究院有限公司 | High-precision measuring device for rotation precision of double-row cylindrical roller bearing |
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