CN109406052A - A kind of high-speed, high precision bearing roller unbalance dynamic measuring device and measuring method - Google Patents
A kind of high-speed, high precision bearing roller unbalance dynamic measuring device and measuring method Download PDFInfo
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- CN109406052A CN109406052A CN201811539060.5A CN201811539060A CN109406052A CN 109406052 A CN109406052 A CN 109406052A CN 201811539060 A CN201811539060 A CN 201811539060A CN 109406052 A CN109406052 A CN 109406052A
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- 230000003068 static effect Effects 0.000 claims abstract description 53
- 238000005259 measurement Methods 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005188 flotation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
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Abstract
The invention belongs to roller unbalance dynamic field of measuring technique, propose a kind of high-speed, high precision lower roller unbalance dynamic measuring device and measuring method.A kind of high-speed, high precision bearing roller unbalance dynamic measuring device proposed has the static air pressure air bearing seat for carrying out non-contact support to roller to be detected；Measuring device also has the electro spindle above static air pressure air bearing seat；Electro spindle is fixed on supporting plate；Corresponding supporting plate is provided with driving motor；The lower end of electro spindle is fixed with the negative pressure sucker to adsorb roller to be detected；Static air pressure air bearing seat and the measurement hinged system being fixed on work top are hinged.Present invention eliminates the influences of outer bound pair roller unbalance dynamic measurement to improve measurement accuracy so that measured unbalancing value is entirely the unbalancing value of roller.
Description
Technical field
It is dynamic not that the invention belongs to roller unbalance dynamic field of measuring technique more particularly to a kind of high-speed, high precision bearing roller
Balance measuring device and measurement method.
Background technique
Recently as the development of national economy and industrial circle, China's equipment manufacture is gradually to high speed, high-precision, height
Efficiency transformation.Bearing is to realize high speed, high-precision important component, and the precision of bearing is very big as the important support of equipment industry
The unbalance dynamic precision of roller is depended in degree.
Under the circumference of the high-speed rotation, the unbalance dynamic of roller can generate very big centrifugal force, and bearing is caused to vibrate,
It will have a direct impact on the machining accuracy of system when vibrating excessive；Biggish centrifugal force can change the stress of roller simultaneously, influence
The stress distribution of inner and outer ring raceway increases the probability of bearing fatigue damage；Roller can also be aggravated when unbalance dynamic is more serious and kept
The abrasion of frame, retainer and inner and outer ring raceway reduces bearing service life etc.；Therefore, to high-speed, high precision bearing roller it is dynamic not
Balance is measured and is particularly important.
Fig. 1, Fig. 2 provide the structural schematic diagram of unbalance dynamic measuring device in the prior art, using Fig. 1, shown in Fig. 2 dynamic
The measurement method that disequilibrium survey device carries out unbalance dynamic is that roller 6 to be detected is placed into support by manually putting on belt
On idler wheel 5, the power supply of motor 2 is opened, drives roller 6 to be detected to rotate by belt 4, the unbalancing value of roller 6 to be detected
Measurement hinged system 1 is passed to by back-up roller wheel 5, can be surveyed by the vibrating sensor 3 being mounted on measurement hinged system 1
The unbalance dynamic information of roller is obtained, and carries out subsequent processing in import information acquisition and analysis system；So far high speed and super precision is completed
Spend the unbalance dynamic measurement of bearing roller.
But above-mentioned unbalance dynamic measurement method is not met by the unbalance dynamic measurement of high speed, high-precision bearing roller, and
And there is also following deficiencies for existing unbalance dynamic measurement hinged system:
1) the requirement revolving speed of high-speed, high precision bearing is very high, the revolving speed of industrial actual requirement high-speed main spindle to reach 8000 turns with
On, and existing unbalance dynamic measurement hinged system can only be measured due to the limitation of method under lower-speed state, it is difficult to it is full
The revolving speed of sufficient high-speed, high precision roller unbalance dynamic measurement needs.
2) hinged system is measured for roller unbalance dynamic, can the unbalancing value that accurately obtain roller be to guarantee measurement
The key point of result precision, but existing measurement method is inevitably limited by device.That is the dynamic injustice of roller
Measure by drive roller rotate main shaft and support roller tooling limited, due to drive roller rotate main shaft and
Itself all there is unbalancing value in support roller tooling, therefore when measuring the unbalancing value of roller, due to roller to be detected
With support roller tooling directly contact, vibration acquisition system acquisition to signal be not only roller to be detected vibration signal.
Measuring signal is also mingled with the unbalance dynamic information of other components, influences the precision of roller unbalance dynamic measurement.
Summary of the invention
The shortcomings that in order to overcome above-mentioned unbalance dynamic measuring device and method, it is high that the object of the present invention is to provide a kind of high speeds
Loose bearings roller unbalance dynamic measuring device and measuring method.
The present invention adopts the following technical solutions to accomplish the above objectives:
A kind of high-speed, high precision bearing roller unbalance dynamic measuring device, the roller unbalance dynamic measuring device, which has, to be used for
The static air pressure air bearing seat of non-contact support is carried out to roller to be detected, the static air pressure air bearing seat is that lower end surface is closed
Tubular structure, and the internal diameter of the static air pressure air bearing seat is greater than the diameter of roller to be detected；The static air pressure air bearing seat
Lower end surface has multiple axial spray orifices；It is evenly equipped with multiple radial spray orifices the wall surface ring week of the static air pressure air bearing seat；Corresponding institute
Axial spray orifice, the radial spray orifice stated are respectively arranged with steam supply valve I, steam supply valve II；The roller to be detected is in the confession
When air valve I, steam supply valve II are opened, axial, structure of the radial suspension in the static air pressure air bearing seat；
The measuring device also has the electro spindle to drive roller rotation to be detected；It is quiet that the electro spindle is located at air
It calms the anger the top of floating seat；The electro spindle is fixed on supporting plate, and the supporting plate is located on track；The corresponding supporting plate is set
It is equipped with the driving motor to drive it to move up and down；The lower end of the electro spindle is fixed with to adsorb the negative of roller to be detected
Press sucker；The negative pressure sucker is connected to negative pressure steam supply valve by rotary joint；Axial, radial suspension is in the static air pressure air bearing
Roller to be detected in seat is to be integrated with the negative pressure sucker absorption and rotate under the action of negative pressure with the electro spindle
Structure, and the roller to be detected of axial direction, radial suspension in the static air pressure air bearing seat be also negative pressure close when with from
Body inertia continues the structure of rotation；The static air pressure air bearing seat is cut with scissors with the measurement hinged system being fixed on work top
It connects, hinged measurement hinged system is swung jointly with the rotation of roller to be detected with static air pressure air bearing seat, the measurement hinge
Catenary system has the vibrating sensor measured to the unbalancing value information to roller to be detected；The vibrating sensing
Device is connected with information collection and analysis system, measurement, acquisition and the analysis for roller unbalance dynamic information to be detected.
The electro spindle lower end is equipped with to carry out to the distance between negative pressure sucker and roller upper surface to be detected
The laser range sensor of detection.
Using a kind of method that high-speed, high precision bearing roller unbalance dynamic measuring device measures, its step are as follows:
1) steam supply valve I, steam supply valve II, are opened, roller to be detected is put into static air pressure air bearing seat, roller to be detected is suspended in
In static air pressure air bearing seat；
2), driving motor driving supporting plate declines along track, drives electro spindle and the negative pressure sucker of electro spindle lower end to decline, and by swashing
Ligh-ranging sensor detects the distance between negative pressure sucker and roller upper surface to be detected, when laser range sensor is examined
When measuring at a distance from set by the arrival of the distance between roller upper surface to be detected and negative pressure sucker, driving motor stop motion；
Then negative pressure steam supply valve is opened, roller to be detected is adsorbed on negative pressure sucker；
3), starting electro spindle makes it accelerate rotation, and electro spindle drives negative pressure sucker and the roller to be detected to rotate together with, simultaneously
The revolving speed of electro spindle is detected；
4), when electro spindle revolving speed reaches test request, negative pressure steam supply valve, the roller to be detected and negative pressure sucker point are closed
From continuing to rotate under the action of inertia, and axial, radial suspension is in the static air pressure air bearing seat；
5) static air pressure air bearing seat is caused to be sent out since there are unbalance dynamics for roller to be detected during roller to be detected rotates
Raw vibration；The vibration of the static air pressure air bearing seat passes on the measurement hinged system hinged with it, and by measurement hinge system
Vibrating sensor on system measures the unbalance dynamic information of roller to be detected, and in import information acquisition and analysis system after progress
The unbalance dynamic measurement of high-speed, high precision bearing roller is so far completed in continuous processing.
A kind of high-speed, high precision bearing roller unbalance dynamic measuring device and measuring method proposed by the present invention, utilize negative pressure
Negative pressure sucker and roller to be detected absorption are integrated by principle, are rotated using electro spindle driving negative pressure sucker and roller to be detected,
Roller to be detected is in rotary course, the phenomenon that there is no axial, radial-plays；When measurement, roller and negative pressure sucker to be detected
Separation, axial direction, radial suspension rely on itself inertial rotation in static air pressure air bearing seat in static air pressure air bearing seat,
In measurement process, static air pressure air bearing seat, at non-contact support, eliminates the dynamic injustice of outer bound pair roller to roller shape to be detected
The influence of weighing apparatus measurement, improves measurement accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of unbalance dynamic measuring device in the prior art.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is structural schematic diagram of the invention.
Fig. 4 is the enlarged drawing of part A in Fig. 3.
In figure: 1, measurement hinged system, 2, servo motor, 3, vibrating sensor, 4, driving belt, 5, back-up roller wheel, 6,
Roller to be detected, 7, static air pressure air bearing seat, 7-1, steam supply valve I, 7-2, radial spray orifice, 7-3, axial spray orifice, 7-4, gas supply
Valve II, 8, track, 9, negative pressure sucker, 10, electro spindle, 11, supporting plate, 12, negative pressure steam supply valve, 13, driving motor, 14, rotation
Adapter, 15, laser range sensor.
Specific embodiment
The present invention is illustrated with reference to the drawings and specific embodiments:
As shown in Figure 3, Figure 4, a kind of high-speed, high precision bearing roller unbalance dynamic measuring device, the roller unbalance dynamic are surveyed
Measuring device has for the static air pressure air bearing seat 7 to roller 6 to be detected progress non-contact support, the static air pressure air bearing
Seat 7 is the closed tubular structure in lower end surface, and the internal diameter of the static air pressure air bearing seat 7 is greater than the diameter of roller 6 to be detected；Institute
The lower end surface for stating static air pressure air bearing seat 7 has multiple axial spray orifice 7-3；The wall surface ring Zhou Jun of the static air pressure air bearing seat 7
It is furnished with multiple radial spray orifice 7-2；Corresponding axial spray orifice 7-3, the radial direction spray orifice 7-2 are respectively arranged with I 7-4 of steam supply valve, supply
II 7-1 of air valve；The roller to be detected 6 is when I 7-1 of steam supply valve, II 7-4 of steam supply valve are opened, axial, radial suspension
In the static air pressure air bearing seat 7；
The measuring device also has the electro spindle 10 to drive roller rotation to be detected；The electro spindle 10 is located at sky
The top of gas static pressure air-bearing seat 7；The electro spindle 10 is fixed on supporting plate 11, and the supporting plate 11 is located on track 8；The reality
It applies in example, the electro spindle can be common electro spindle, can also be air-flotation electric spindle, the knot of common electro spindle, air-flotation electric spindle
Structure is technical pattern mature in the prior art, and don't explain too much here；The corresponding supporting plate 11 is provided with to drive
Move its driving motor 13 moved up and down；The lower end of the electro spindle 10 is fixed with the negative pressure sucker to adsorb roller to be detected
9；The negative pressure sucker 9 is connected to negative pressure steam supply valve 12 by rotary joint 14；It is axial, radial outstanding when negative pressure steam supply valve 12 is opened
The roller to be detected 6 in the static air pressure air bearing seat 7 is floated on to be integrated with the absorption of negative pressure sucker 9 under the action of negative pressure
And it is rotated with the electro spindle 10；When the revolving speed of electro spindle 10 reaches setting speed, negative pressure steam supply valve 12 is closed, axially,
To be detected roller 6 of the radial suspension in the static air pressure air bearing seat is separated with negative pressure sucker, and is continued under effect of inertia
Rotation；The static air pressure air bearing seat and the measurement hinged system 1 being fixed on work top are hinged；With static air pressure air bearing
The hinged measurement hinged system 1 of seat is swung jointly with the rotation of roller to be detected, on the measurement hinged system 1 with to
The vibrating sensor 3 that the unbalancing value information of roller to be detected is measured；The vibrating sensor 3 and information collection
And analysis system is connected, measurement, acquisition and the analysis for roller unbalance dynamic information to be detected；The measurement hinge system
System 1, information collection and analysis system use structure in the prior art.
10 lower end of electro spindle is equipped with to the distance between negative pressure sucker 9 and 6 upper surface of roller to be detected
The laser range sensor 15 detected.
Using a kind of method that high-speed, high precision bearing roller unbalance dynamic measuring device measures, its step are as follows:
1) I 7-1 of steam supply valve, II 7-4 of steam supply valve, are opened, roller 6 to be detected is put into static air pressure air bearing seat 7, and is suspended in
In static air pressure air bearing seat 7；
2), driving motor 13 drives supporting plate 11 to decline, and electro spindle 10 and the negative pressure sucker 9 of electro spindle lower end is driven to decline, and by
Laser range sensor 15 detects the distance between negative pressure sucker 9 and 6 upper surface of roller to be detected, when laser ranging passes
When sensor 15 detects that the distance between 6 upper surface of roller to be detected and negative pressure sucker 9 are reached at a distance from set, driving motor
13 stop motions；Then negative pressure steam supply valve 12 is opened, roller 6 to be detected is adsorbed on negative pressure sucker 9；
3), starting electro spindle 10 makes it accelerate rotation, and electro spindle drives negative pressure sucker and the roller to be detected to rotate together with, together
When the revolving speed of electro spindle 10 is detected；
4) when the revolving speed of electro spindle 10 reaches test request, negative pressure steam supply valve 12 is closed, the roller 6 to be detected is inhaled with negative pressure
Disk 9 separates, and continues to rotate under the action of inertia, and axial, radial suspension is in the static air pressure air bearing seat 7；
Since there are unbalance dynamics for roller 6 to be detected during roller rotation to be detected, static air pressure air bearing seat 7 is caused to be sent out
Raw vibration；The vibration of the static air pressure air bearing seat passes on the measurement hinged system 1 hinged with it, and by measurement hinge system
Vibrating sensor 3 on system 1 measures the unbalance dynamic information of roller to be detected, and carries out in import information acquisition and analysis system
Subsequent processing so far completes the unbalance dynamic measurement of high-speed, high precision bearing roller.
Claims (3)
1. a kind of high-speed, high precision bearing roller unbalance dynamic measuring device, it is characterised in that: the roller unbalance dynamic is surveyed
Measuring device has for the static air pressure air bearing seat to roller to be detected progress non-contact support, the static air pressure air bearing seat
For the closed tubular structure in lower end surface, and the internal diameter of the static air pressure air bearing seat is greater than the diameter of roller to be detected；The sky
The lower end surface of gas static pressure air-bearing seat has multiple axial spray orifices；The wall surface ring week of the static air pressure air bearing seat is evenly equipped with multiple diameters
To spray orifice；The corresponding axial spray orifice, radial spray orifice are respectively arranged with steam supply valve I, steam supply valve II；The roller to be detected
For in the steam supply valve I, the opening of steam supply valve II, axial, structure of the radial suspension in the static air pressure air bearing seat；
The measuring device also has the electro spindle to drive roller rotation to be detected；It is quiet that the electro spindle is located at air
It calms the anger the top of floating seat；The electro spindle is fixed on supporting plate, and the supporting plate is located on track；The corresponding supporting plate is set
It is equipped with the driving motor to drive it to move up and down；The lower end of the electro spindle is fixed with to adsorb the negative of roller to be detected
Press sucker；The negative pressure sucker is connected to negative pressure steam supply valve by rotary joint；Axial, radial suspension is in the static air pressure air bearing
Roller to be detected in seat is to be integrated with the negative pressure sucker absorption and rotate under the action of negative pressure with the electro spindle
Structure, and the roller to be detected of axial direction, radial suspension in the static air pressure air bearing seat be also negative pressure close when with from
Body inertia continues the structure of rotation；The static air pressure air bearing seat is cut with scissors with the measurement hinged system being fixed on work top
It connects, hinged measurement hinged system is swung jointly with the rotation of roller to be detected with static air pressure air bearing seat, the measurement hinge
Catenary system has the vibrating sensor measured to the unbalancing value information to roller to be detected；The vibrating sensing
Device is connected with information collection and analysis system, measurement, acquisition and the analysis for roller unbalance dynamic information to be detected.
2. a kind of high-speed, high precision bearing roller unbalance dynamic measuring device as described in claim 1, it is characterised in that: described
Electro spindle lower end the Laser Measuring to be detected to the distance between negative pressure sucker and roller upper surface to be detected is installed
Away from sensor.
3. being measured using a kind of any high-speed, high precision bearing roller unbalance dynamic measuring device of claim 1-2
Method, its step are as follows:
1) steam supply valve I, steam supply valve II, are opened, roller to be detected is put into static air pressure air bearing seat, roller to be detected is suspended in
In static air pressure air bearing seat；
2), driving motor driving supporting plate declines along track, drives electro spindle and the negative pressure sucker of electro spindle lower end to decline, and by swashing
Ligh-ranging sensor detects the distance between negative pressure sucker and roller upper surface to be detected, when laser range sensor is examined
When measuring at a distance from set by the arrival of the distance between roller upper surface to be detected and negative pressure sucker, driving motor stop motion；
Then negative pressure steam supply valve is opened, roller to be detected is adsorbed on negative pressure sucker；
3), starting electro spindle makes it accelerate rotation, drives negative pressure sucker and axial, radial suspension in the static air pressure air bearing
The roller to be detected in seat rotates together with, while detecting to the revolving speed of electro spindle；
4), when electro spindle revolving speed reaches test request, negative pressure steam supply valve is closed, axial direction, radial suspension are quiet in the air
The roller to be detected calmed the anger in floating seat is separated with negative pressure sucker, continues to rotate under the action of inertia；
5), lead to static air pressure air bearing seat since there are unbalance dynamics for roller to be detected during roller to be detected rotates
It vibrates；The vibration of the static air pressure air bearing seat passes on the measurement hinged system hinged with it, and by measurement hinge
Vibrating sensor in system measures the unbalance dynamic information of roller to be detected, and carries out in import information acquisition and analysis system
Subsequent processing so far completes the unbalance dynamic measurement of high-speed, high precision bearing roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539060.5A CN109406052B (en) | 2018-12-17 | 2018-12-17 | High-speed high-precision bearing roller dynamic unbalance measurement device and measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539060.5A CN109406052B (en) | 2018-12-17 | 2018-12-17 | High-speed high-precision bearing roller dynamic unbalance measurement device and measurement method |
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| Publication Number | Publication Date |
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| CN109406052A true CN109406052A (en) | 2019-03-01 |
| CN109406052B CN109406052B (en) | 2023-12-22 |
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| CN108168776A (en) * | 2017-12-18 | 2018-06-15 | 中国航空发动机研究院 | Micro- rotor unbalance measuring device and measuring method |
| CN209247238U (en) * | 2018-12-17 | 2019-08-13 | 洛阳恒锐测控科技有限公司 | A kind of high-speed, high precision bearing roller unbalance dynamic measuring device |
-
2018
- 2018-12-17 CN CN201811539060.5A patent/CN109406052B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002267561A (en) * | 2001-03-08 | 2002-09-18 | Kokusai Keisokki Kk | Uniformity and/or dynamic balance tester for tire |
| CN1851428A (en) * | 2006-04-30 | 2006-10-25 | 北京航空航天大学 | Torque test air support rotating platform for control torque gyro |
| CN101852684A (en) * | 2010-05-24 | 2010-10-06 | 中国计量学院 | Performance testing device of static-pressure air bearing |
| CN102043069A (en) * | 2010-11-26 | 2011-05-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | Angular impact table |
| CN203348321U (en) * | 2011-05-30 | 2013-12-18 | 无锡微焦科技有限公司 | Air bearing and air floatation motion system |
| CN102650560A (en) * | 2012-04-24 | 2012-08-29 | 上海卫星工程研究所 | Large-scale rotary load high-precision dynamic balance measuring device for spacecraft |
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| CN109406052B (en) | 2023-12-22 |
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