CN205958256U - Antifriction bearing rotation flexibility measuring apparatu - Google Patents
Antifriction bearing rotation flexibility measuring apparatu Download PDFInfo
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- CN205958256U CN205958256U CN201620345276.8U CN201620345276U CN205958256U CN 205958256 U CN205958256 U CN 205958256U CN 201620345276 U CN201620345276 U CN 201620345276U CN 205958256 U CN205958256 U CN 205958256U
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Abstract
The utility model provides an antifriction bearing rotation flexibility measuring apparatu, system's support and positioning base are fixed on system's flat board, it fixes on system's support to promote cylinder and linear guide, the load frame is fixed on linear guide, and link to each other with promotion cylinder pole, be fixed with the motor frame on the load frame, including a motor, an end cap, a controller, and a cover plate, tacho sensor and bearing frame, angular contact ball bearing's outer lane and bearing frame cooperation, inner circle and the shaft fit of from the driven pulleys outer lane, from the driven pulleys is well casement, the from the driven pulleys cover is in the outer lane of friction power shaft, the upper portion of friction power shaft is fixed with the gear, the lower part is fixed with load piece and load head, the load head is connected with the load piece, the bearing that awaits measuring is placed in the positioning base, the instantaneous rotational speed of tacho sensor prototype gear. Reduction external factors solves the too high problem that leads to rotatory unstability of load piece focus to measuring result's influence, solves the problem that artifical measurement of efficiency is low simultaneously.
Description
Technical field
This utility model is related to a kind of rolling bearing flexibility of revolution measuring instrument it is adaptable to rolling bearing flexibility of revolution
Aulomatizeted Detect and differentiation.
Background technology
In the manufacturing procedure of bearing, after bearing assembling is finished, for ensureing that bearing quality need to be to its every technical parameter
Measure, the flexibility of revolution of bearing is one of important quality index, it refers to that the rolling element of bearing is interior with what it coordinated
The motility that outer collar raceway groove rotates, mainly rolling element and the inside and outside circle circularity of raceway groove and fineness, end-play cooperation and
Bearing cleannes are relevant.It is very big that bearing rotates the bad especially impact to noise, vibrations and service life of motility.
In prior art, bearing rotary motility comprises two kinds of detection modes.One is to adopt manual detection：One hands of workman
Pick up bearing, hold bearing inner race, another handss swivel bearing outer ring, by the time of feel, bearing outer ring rotation, according to warp
Test the flexibility of revolution to differentiate bearing, to judge the quality of bearing；Or bearing to be measured is positioned on work platformses, only
Make outer ring contact platform, a load block is placed on bearing inner race, the axis of load block is overlapped with bearing axis, and only with inner ring
Contact, staff rotating load block, load block drives bearing rotary, and whether the sense organ now by workman judges bearing outer ring rotation
Flexibly., by manually being detected, the high labor intensive of workman, when workman's fatigue or attention for this bearing motility detection method
When not concentrating, easily produce quality erroneous judgement, and the operant skill of workman, experience etc. are required higher, and manual detection efficiency is relatively
Low, manual detection is unfavorable for the needs of automatic continuous production.
Two is using self-operated measuring unit detection：General fashion is the process of simulation manual detection, and bearing outer ring is placed
On work platformses, inner ring is placed a load block, using motor or the rotation of pressure-air band dynamic load block, reach certain rotating speed
Afterwards, power and load block are departed from, so that load block band dynamic bearing is rotated freely, by the rotation circle of sensor detection load block
Number, realizes the Detection task of bearing motility.The mode of changing can with more efficient, detect the good of bearing rotary motility exactly
Bad, it is not required to manually operate, can be used for automatic continuous production.But there is problems with existing device for detecting flexibility：1st, sentence
The standard of disconnected motility be all the number of teeth being turned over inner ring turning collar number or gear as foundation, this will to the initial speed of load block
Ask higher, the therefore requirement to motor or pressure-air is higher.Because for same bearing, initial speed is different, when identical
Inner ring rotating cycle also can be different.2nd, because in measurement process, load block needs and power source disconnects, therefore existing knot
Structure is typically complex, center of gravity all higher it is more difficult to ensure load block rotary course in stablizing, on measurement result produce impact.
Documents 1：Bearing motility testing agency, application number：201520451178.8, publication number：Detection in 204944838U
Mechanism, its load block weight is not enough, and load block is non-exchange, and load center of gravity is higher, and sensor is detection signal disc spins number of times
To be detected, such measurement result has larger error.
Utility model content
This utility model provides a kind of rolling bearing flexibility of revolution measuring instrument, reduces extraneous factor（As motor speed, height
Pressure air pressure etc.）Impact to measurement result, solves the problems, such as that load block center of gravity is too high and leads to rotate unstable, solve simultaneously
The low problem of efficiency of manual measurement.
A kind of rolling bearing flexibility of revolution measuring instrument, including lifting cylinder, system frame, gear, line slideway, driven
Belt wheel, motor rack, load frame, driving pulley, motor, bearing to be measured, positioning base, system flat-plate, tachogenerator, bearing
Seat, load block and load head, frictional power axle, angular contact ball bearing；System frame and positioning base are fixed on system flat-plate,
Lifting cylinder and line slideway are fixed in system frame, and load frame is fixed on line slideway and is connected with lifting cylinder bar,
Motor rack, motor, tachogenerator and bearing block are fixed with load frame, the outer ring of angular contact ball bearing and bearing block are joined
Close, inner ring and driven pulley outer race shaft coordinate, driven pulley is hollow type, and driven pulley is enclosed within the outer ring of frictional power axle, rubs
The top wiping line shaft is fixed with gear, and bottom is fixed with load block and load head, and load head is connected with load block, and load block can
Change, bearing to be measured is placed in positioning base, the transient speed of tachogenerator prototype gear.
Further, driven pulley inner ring is provided with conical friction surfaces, and the top outer ring of frictional power axle is a cone
Rubbing surface, frictional power axle and conical friction face cooperation in driven pulley.
Further, the top of positioning base is provided with positioning endoporus, the race fit with bearing to be measured；Under positioning base
Portion is provided with the axis of guide, coordinates with internal point in base.
The beneficial effects of the utility model there are provided a kind of rolling bearing flexibility of revolution measuring instrument, using with load
Block rotation gear and tachogenerator, be calculated bearing freely rotatable when transient speed rate of change, as basis for estimation,
Eliminate the impact to measurement result for the change of load block initial speed it is achieved that the digitized measurement of bearing rotary motility；Make
With the load mechanism optimizing, load block is directly connected to bearing to be measured, reduces center of gravity, load tuber is according to the difference of bearing to be measured
The load block of replaceable different weight, is felt relieved to bearing using positioning base simultaneously, it is to avoid load tilts and bias is to measurement
The impact of result is so that measurement result is true and reliable.
Brief description
Fig. 1 show structural representation under this utility model rolling bearing motility measuring instrument test mode.
Fig. 2 show the structural representation under Fig. 1 holding state.
Fig. 3 show loaded portion structural representation under test mode in this utility model.
Fig. 4 show this utility model workpiece positioning structure schematic diagram.
Fig. 5 show this utility model rolling bearing motility Survey Software flow chart.
Reference：1- lifting cylinder；2- system frame；3- gear；4- line slideway；5- driven pulley；6- motor rack；
7- load frame；8- driving pulley；9- motor；10- bearing to be measured；11- positioning base；12- system flat-plate；13- tachogenerator；
14- bearing block；15- load block；16- load head；17- frictional power axle, 18- angular contact ball bearing, 19- sensor frame, 20- hole
With jump ring, 21- axle jump ring；22- thrust ball bearing shaft washer, 23- ball retainer assembly, 24- thrust ball race.
Specific embodiment
A kind of rolling bearing flexibility of revolution measuring instrument has centring means, load maintainer, rotary apparatuss, tachometric survey machine
Structure, measurement result analysis system etc..Centring means makes measured bearing be in the position meeting measurement requirement；Load maintainer is axle
Hold the axial load providing measurement standard to specify；Rotating mechanism uses motor belt motor dynamic load block and bearing rotary, and provides measurement
Required initial speed；Tachometric survey mechanism is turned with the instantaneous of the gear measurement load that rotates with load using proximity switch
Speed；Measurement result analysis system be the signals collecting that sensor is exported to computer, calculated by pretreatment, rotating speed, curve
The processes such as matching, obtain reflecting the parameter value of bearing rotary motility.
This measuring instrument motility test mode structure is as shown in Figure 1.Including lifting cylinder 1, system frame 2, gear 3, straight
Line guide rail 4, driven pulley 5, motor rack 6, load frame 7, driving pulley 8, motor 9, bearing to be measured 10, positioning base 11, system
Flat board 12, tachogenerator 13, bearing block 14, load block 15 and load head 16, frictional power axle 17, angular contact ball bearing 18；
System frame 2 and positioning base 11 are fixed on system flat-plate 12, and lifting cylinder 1 and line slideway 4 are fixed on system frame 2
On, load frame 7 is fixed on line slideway 4 and is connected with lifting cylinder bar, is fixed with motor rack 6, motor on load frame 7
9th, tachogenerator 13 and bearing block 14, the outer ring of angular contact ball bearing 18 and bearing block 14 coordinate, outside inner ring and driven pulley 5
Circle axle cooperation, driven pulley 5 is hollow type, and driven pulley 5 is enclosed within the outer ring of frictional power axle 17, the top of frictional power axle 17
It is fixed with gear 3, bottom is fixed with load block 15 and load head 16, load head 16 is connected with load block 15, bear when needing to change
Only need during lotus type to change load head.Bearing 10 to be measured is placed in positioning base 11, in working order under, load head 16 with treat
Survey bearing 10 to contact, drive the transient speed of bearing rotary tachogenerator 13 prototype gear.
Driven pulley 5 inner ring is provided with conical friction surfaces, and the top outer ring of frictional power axle 17 is conical friction surfaces,
Frictional power axle 17 and conical friction face cooperation in driven pulley.
The top of positioning base 11 is provided with positioning endoporus, the race fit with bearing 10 to be measured；The bottom of positioning base 11
It is provided with the axis of guide, coordinate with internal point in base.
Tachogenerator 13 is fixed on load frame 7 by sensor frame 19.
Installing hole jump ring 20 between the outer ring of angular contact ball bearing 18 and bearing block 14 internal diameter, angular contact ball bearing 18
Installation axle jump ring 21 between the external diameter of inner ring and driven pulley 5.
Structure under this measuring instrument holding state is as shown in Figure 2.Now lifting cylinder drives loaded portion to rise, and disengaging is treated
Survey bearing.
Under test mode, the internal structure of loaded portion is as shown in Figure 3.On the one hand, when load frame is in the drive of lifting cylinder
During lower rising, the conical friction face of frictional power axle will be contacted with the conical friction face of driven pulley, and rises under its drive,
Load block is made to depart from bearing to be measured；On the other hand, when frictional power axle contacts with the conical friction face of driven pulley, driven belt
Wheel rotates under the drive of motor, relies on the frictional force in conical friction face that frictional power axle, load block, gear etc. will be driven to revolve
Turn, provide initial velocity for measurement；Last one side, in the state of the rotation of load block, load frame declines, and will make driven pulley
Disengage with frictional power axle, now load block will drive bearing to be measured to rotate freely, and rotation speed change now reflects to be treated
Survey the flexibility of revolution of bearing.When load block drives bearing to be measured freely rotatable, with rotation, tooth top and tooth root pass through gear
During tachogenerator, the signal voltage of sensor output is of different sizes, just can measure the number of teeth turning in certain time accordingly,
The transient speed of gear can be extrapolated according to total number of teeth of selected gear, this is the freely rotatable transient speed of bearing to be measured.
Bearing positioning to be measured is illustrated as shown in Figure 4.Bearing wherein to be measured is by thrust ball bearing shaft washer 22, ball retainer group
Part 23, thrust ball race 24 forms.Positioning base top is provided with positioning endoporus, coordinates with thrust ball race, by axle
Hold positioning；Positioning base bottom is provided with the axis of guide, coordinates with internal point in base, realizes the positioning of bearing to be measured it is ensured that load
Block and the coaxial bearing heart to be measured.
Work process：The action of this measuring instrument and software analysis flow process are as shown in Figure 5.When system detectio is in positioning base
When having workpiece, motor rotarily drives the rotation of load block, and lifting cylinder declines simultaneously；When reaching the limit switch setting, now
Load block will touch bearing to be measured, and computer starts to gather the signal of tachogenerator always, and cylinder continues to decline simultaneously,
Until cylinder reaches lower limit, now load block and driven pulley depart from, and load block drives bearing to be measured to rotate freely.Wait 0.5
Motor can be stopped after second.After load block rotates freely the time of 2 seconds about, lifting cylinder rises, and band dynamic load block departs to be treated
Survey bearing.Now, computer carries out waveform conversion first to the signal of collection, is converted to low and high level signal, thus calculates wink
When rotating speed.Finally according to the change calculations relative speed variation of transient speed in testing time section, thus judge the rotation of bearing to be measured
Turn the quality of motility.
Claims (3)
1. a kind of rolling bearing flexibility of revolution measuring instrument it is characterised in that：Including lifting cylinder（1）, system frame（2）, tooth
Wheel（3）, line slideway（4）, driven pulley（5）, motor rack（6）, load frame（7）, driving pulley（8）, motor（9）, axle to be measured
Hold（10）, positioning base（11）, system flat-plate（12）, tachogenerator（13）, bearing block（14）, load block（15）With load head
（16）, frictional power axle（17）, angular contact ball bearing（18）；System frame（2）And positioning base（11）It is fixed on system flat-plate
（12）On, lifting cylinder（1）And line slideway（4）It is fixed on system frame（2）On, load frame（7）It is fixed on line slideway（4）
Go up and be connected with lifting cylinder bar, in load frame（7）On be fixed with motor rack（6）, motor（9）, tachogenerator（13）And axle
Bearing（14）, angular contact ball bearing（18）Outer ring and bearing block（14）Cooperation, inner ring and driven pulley（5）Outer race shaft coordinates,
Driven pulley（5）For hollow type, driven pulley（5）It is enclosed within frictional power axle（17）Outer ring, frictional power axle（17）Top
It is fixed with gear（3）, bottom is fixed with load block（15）And load head（16）, load head（16）With load block（15）Connect, bear
Lotus block（15）Replaceable, bearing to be measured（10）It is placed on positioning base（11）In, tachogenerator（13）Prototype gear instantaneous
Rotating speed.
2. a kind of rolling bearing flexibility of revolution measuring instrument according to claim 1 is it is characterised in that driven pulley（5）
Inner ring is provided with conical friction surfaces, frictional power axle（17）Top outer ring be conical friction surfaces, frictional power axle（17）
Coordinate with conical friction face in driven pulley.
3. a kind of rolling bearing flexibility of revolution measuring instrument according to claim 1 is it is characterised in that positioning base（11）
Top be provided with positioning endoporus, with bearing to be measured（10）Race fit；Positioning base（11）Bottom be provided with the axis of guide, the bottom of with
Internal point cooperation in seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620345276.8U CN205958256U (en) | 2016-04-21 | 2016-04-21 | Antifriction bearing rotation flexibility measuring apparatu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620345276.8U CN205958256U (en) | 2016-04-21 | 2016-04-21 | Antifriction bearing rotation flexibility measuring apparatu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958256U true CN205958256U (en) | 2017-02-15 |
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ID=57966734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620345276.8U Expired - Fee Related CN205958256U (en) | 2016-04-21 | 2016-04-21 | Antifriction bearing rotation flexibility measuring apparatu |
Country Status (1)
| Country | Link |
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| CN (1) | CN205958256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784368A (en) * | 2016-04-21 | 2016-07-20 | 江苏师范大学 | Rolling bearing rotation flexibility measurement instrument and measurement method thereof |
-
2016
- 2016-04-21 CN CN201620345276.8U patent/CN205958256U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784368A (en) * | 2016-04-21 | 2016-07-20 | 江苏师范大学 | Rolling bearing rotation flexibility measurement instrument and measurement method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |