CN107101560A - A kind of bearing end-play measurement assembly and the method for measuring bearing clearance - Google Patents
A kind of bearing end-play measurement assembly and the method for measuring bearing clearance Download PDFInfo
- Publication number
- CN107101560A CN107101560A CN201710547178.1A CN201710547178A CN107101560A CN 107101560 A CN107101560 A CN 107101560A CN 201710547178 A CN201710547178 A CN 201710547178A CN 107101560 A CN107101560 A CN 107101560A
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- Prior art keywords
- bearing
- clamping block
- play
- dial gauge
- balancing weight
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- 238000005259 measurement Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007769 metal material Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of bearing end-play measurement assembly and the method for measuring bearing clearance, belong to bearing measuring field, a kind of bearing end-play measurement assembly, including support block, clamping block and dial gauge, the upper surface of the support block is provided with the groove for placing the bearing, one middle side part of the clamping block is provided with the slot for clamping bearing inner race, the base of the dial gauge is used to be arranged on the clamping block, and the measurement head of the dial gauge is used to be connected on the outside of bearing outer ring.The end-play that the present invention is used to measure large size bearing is more accurate, the large size bearing such as the Wind turbines that are particularly suitable for use in driftage, change oar, and simple in construction, it is easy to mount and dismount.
Description
Technical field
The present invention relates to bearing clearance fields of measurement, more particularly to one kind be particularly suitable for use in wind generating set yaw,
The large size bearing end-play measurement assembly such as pitch variable bearings and the method for measuring bearing clearance.
Background technology
In wind power generating set, the driftage and pitch variable bearings of particularly big MW class wind turbine group, the footpath of bearing
It is an important technology index of bearing to clearance, directly affects performance and the life-span of bearing.Clearance, which crosses conference, to be caused
Rolling element skids；Clearance is too small to cause caloric value increase during bearing use, cause bearing to be burnt, or even stuck.Therefore,
Accurate understanding wind generating set yaw, the end-play of pitch variable bearings in use have highly important meaning.
Ball bearing being selected the driftage of wind power generating set, pitch variable bearings, for ball bearing, ball necessarily be in bearing more
Lasso bottom of trench position, current metering system has apparatus measures and hand push measurement.Apparatus measures are applied to measurement load precision
It is required that high occasion, bearing is generally horizontal axis installation during measurement, can accurately apply measurement load, measured value repeatable accuracy as requested
Height, is influenceed small by the subjective factor of people.And the easy measuring method of hand push mensuration tradition, it is typically (vertical in bearing flat condition
Axle) under carry out, loaded using hand push, added load is rule of thumb held by gauger, the size and guess value for measuring load are accurate
Exactness is from operator influence larger.
For large-scale wind electricity driftage, pitch variable bearings, influenceed by bearing size and specification, without special measuring instrument.Due to
Steel ball is heavier, when hand push is measured, and steel ball precision can not apply measurement load on request not in bottom of trench position, it is impossible to accurate
Measure the end-play of bearing.
Therefore it provides the measurement apparatus and method of a kind of energy precision measure end-play are necessary.
The content of the invention
It is an object of the invention to provide a kind of bearing end-play measurement assembly and the method for measuring bearing clearance, pass through profit
Base, dial gauge measurement, clamping block subsidiary bearing end-play, so as to overcome existing wind-driven generator are made of support block
The deficiency of the bad assurances of large size bearing accuracy of measurement such as group driftage, pitch variable bearings.
To achieve the above object, the present invention is adopted the following technical scheme that：
The present invention provides a kind of bearing end-play measurement assembly, including support block, clamping block and dial gauge, the support
The upper surface of block is provided with the groove for placing the bearing, and a middle side part of the clamping block, which is provided with, to be used in clamping bearing
The slot of circle, the base of the dial gauge is used to be arranged on the clamping block, and the measurement head of the dial gauge is used to abut
On the outside of bearing outer ring.
The support block is preferably metal material.
The size and weight of the clamping block can suitably be adjusted according to the load of surveyed bearing.The slot is preferably
U-type groove.
Further, the measurement assembly also includes balancing weight, for being arranged on bearing outer ring measurement bearing end-play
When top, the measurement head of the dial gauge is used to be connected to the balancing weight.
The balancing weight is preferably metal material.
The size and weight of the balancing weight can suitably be adjusted according to the load of surveyed bearing.
Preferably, the lower surface of the balancing weight is placed on the arc on the bearing outer ring top for convenience, or described
The lower surface of balancing weight is the U-type groove structure for being connected to the bearing outer ring top.
Further, the groove of the support block is V-groove, and the lower surface of the support block is horizontal plane.Preferably, institute
It is the square block structure or trapezium structure that upper surface is V-groove to state support block.
Further, the clamping block is arcuate structure relative to another side surface of the slot.
Further, the clamping block is metal material.
Preferably, the base of the dial gauge is magnetic base, and the magnetic base absorption is on the clamping block.
Preferably, the clamping block is upper surface provided with the structure that U-type groove and lower surface are arc.
Support block, clamping block and the balancing weight of the present invention is both preferably carefully and neatly done and symmetrical shape, symmetrical shape stress
Evenly.
On the other hand there is provided a kind of method for measuring bearing clearance, bearing clearance, bag preferably are measured using said modules
Include following steps：
1) bearing is consolidated vertically and be placed in support block, engaged in the inside top clamping one of bearing inner race
Block；
2) dial gauge is fixed on the clamping block, and the measurement head of the dial gauge is connected to the bearing of the bearing
Top on the outside of outer ring；
3) the two is sunk by the deadweight of the bearing inner race and clamping block under nature, read now dial gauge
Reading is designated as a；
4) clamping block and institute's survey bearing are slowly lifted using external force makes the bearing outer ring completely disengage from the support
Block, the reading for reading now dial gauge is designated as b, then the end-play of surveyed bearing is (b-a).
Preferably, the external force is including but not limited to portable, crane is hung.
Preferably, the step 2) in also include：Balancing weight is configured in the top of the bearing outer ring, and by described hundred
The measurement head of table is divided to be connected to the top of the balancing weight.
Preferably, the step 1) in also include：The bearing outer ring end face radially symmetric position carry out straight line
Mark, makes one end of the linear mark be located at institute's survey bearing bottom, makes the straight line and the groove of the linear mark most
Bottom point-blank, and makes the end face center position of the clamping block and/or balancing weight with the linear mark at one
On straight line.
Preferably, the bottom turning point of the V-groove of the linear mark and the support block is point-blank.
Due to using above-mentioned technical proposal, the present invention at least has advantages below：
(1) present invention is by placing institute's survey bearing under vertical state using support block, and the disc of institute's survey bearing is towards behaviour
Make personnel, surveyed bearing is consolidated vertically, so that end-play measurement is more accurate, while being made using clamping block in the bearing
Circle preferably sinks, and another aspect clamping block can prevent tooth when being lifted by external force (including but not limited to portable, crane is hung)
The abrasion to crane suspender belt such as wheel, is more convenient to keep the vertical of bearing, makes measurement result more accurate；
(2) balancing weight can also be placed on the crown center position of bearing outer ring by the present invention as preloading, and simulation is existing
The situation of real axis endurance, so as to more accurately measure bearing end-play；
(3) present invention is more accurate and simple in construction for the end-play for measuring large size bearing, it is easy to pacify installation and dismantling
Unload.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to accompanying drawing, the present invention is described in further detail with embodiment.
Fig. 1 is that the structure of one embodiment of the bearing radial internal clearance measuring device measurement bearing end-play of the present invention is shown
It is intended to；
Fig. 2 is Fig. 1 of present invention A-A diagrammatic cross-sections.
Embodiment
The present invention provides one embodiment that a kind of bearing radial internal clearance measuring device measures Wind turbines pitch variable bearings, such as
Fig. 1, shown in 2, institute's survey bearing includes bearing inner race 7 and the bearing outer ring 5 being adapted with bearing inner race 7, and bearing end-play is surveyed
Measure component, including support block 1, clamping block 2 and dial gauge 3, the upper surface of support block 1 are provided with the recessed of for placing survey bearing
Groove 11 a, middle side part of clamping block 2 is provided with the slot 21 for clamping bearing inner race 7, and the base of dial gauge 3 is used to be arranged on
On clamping block 2, the measurement head of dial gauge 3 is used to be connected to the outside of bearing outer ring 5.
In the use of the present invention, support block 1 is placed in the horizontal plane, surveyed bearing is lain in a horizontal plane in into support block 1
On groove 11, clamping block 2 is then connected to the inner side of bearing inner race 7 using the slot 21 of clamping block 2, clamping block 2 it is big
Small and weight can suitably be adjusted according to the load of surveyed bearing, and dial gauge 3 is placed on clamping block 1, the measurement head of dial gauge 3
It is connected on bearing outer ring 5, the two is sunk by the deadweight of bearing inner race 7 and clamping block 2 under nature, percentage now
Meter reading is initial radial clearance reading, is designated as a, then will be blocked using external force (external force is including but not limited to portable, crane is hung)
Close block 2 and institute's survey bearing lifts and completely disengages from support block, support block is not stressed, now fixed equivalent to bearing inner race 7, according to
Deadweight by bearing outer ring 5 and retainer 6 sinks to measuring another limiting value of end-play, and percentage meter reading now is whole footpath
To clearance reading, the percentage meter reading read now is designated as b, then the end-play of bearing is (b-a), is now the static shape of bearing
Clearance under state.
As an improvement, the groove 11 of support block 1 is V-groove, and placing bearing makes bearing outer ring 5 and V-groove circumscribed, V
Type groove can consolidate surveyed bearing and make disc vertical, convenient detection end-play.
Optionally, the slot 21 of clamping block 2 is U-type groove.
Balancing weight 4 can also be placed on the top during measurement bearing end-play of bearing outer ring 5 by the present invention, simultaneously
The measurement head for the dial gauge 3 being placed on bearing outer ring 5, which changes, to be abutted on balancing weight 4, is measured respectively just according to above-mentioned application method
Beginning end-play reading a ' and whole end-play reading b ', then the bearing end-play measured is (b '-a '), so as to simulate reality
The situation of axis endurance, so as to more accurately measure bearing end-play.
As an improvement, the lower surface of balancing weight 4 is placed on the arc on the top of bearing outer ring 5, or counterweight for convenience
The lower surface of block 4 is the U-type groove structure for being connected to the top of bearing outer ring 5.The addition of balancing weight 4 can be with mould as preloading
The stressing conditions of imitative reality middle (center) bearing, so as to more accurately measure journal bearing clearance, the size and weight of balancing weight 4 can
With according to the load of survey bearing suitably adjust.The lower surface of balancing weight 4 is arcuate structure or U-type groove structure, is placed on outside bearing
More consolidated on circle 5, be conducive to the measurement of end-play to carry out.
In order to more accurately measure journal bearing clearance, bearing outer ring 5 end face radially symmetric position carry out straight line
Mark, makes one end of linear mark be located at bearing bottom, makes the lowermost end of the straight line of linear mark and groove 11 in straight line
On, and make the end face center position of clamping block 2 and/or balancing weight 4 with linear mark point-blank.
Can also bearing outer ring 5 end face radially symmetric position carry out linear mark, by by the bearing of linear mark
When outer ring 5 is placed in support block 1, make the bottom turning point of the straight line of linear mark and V-groove 11 point-blank, and make
The end face center position of clamping block 2 and/or balancing weight 4 and linear mark are point-blank.
In order that the making of support block 1, placement etc. more facilitate, the groove 11 of the support block 1 is V-shaped groove, support block
Lower surface be horizontal plane, the bottom turning point of linear mark and V-groove is point-blank.Preferably, support block 1 is upper table
Face is the square block structure or trapezium structure of V-groove.
Labeling method can mark for marker pen, measurement can be made more accurate after linear mark.
Optionally, clamping block 2 is arcuate structure relative to another side surface of slot 21.Slot 21
Preferably U-type groove structure.Slot 21 be can be very good to be connected on bearing inner race 7, and the arcuate structure of lower surface is also helped
Loop wheel machine suspender belt conveniently slings clamping block 2 and institute's survey bearing, in case the gear mesh suspender belt of bearing inner race 7 produces abrasion.
Further, clamping block 2 is metal material.Balancing weight 4 and support block 1 are preferably also metal material.Metal material
Source is easy to get, and can use the dial gauge 3 with magnetic stand, makes the absorption of magnetic force dial gauge on clamping block 2.
Balancing weight, clamping block make surveyed shaft strength uniform during in order to measure, and make support block uniform force, of the invention
Support block 1, clamping block 2 and balancing weight 4 are both preferably carefully and neatly done and symmetrical shape.
The component of the present invention is including as follows when the situation of the real axis endurance of simulation carries out bearing end-play measurement
Step：
1) with marker pen, in the end face of surveyed bearing, radially symmetric position is marked；
2) support block 1 is placed in the horizontal plane, surveyed bearing is lain in a horizontal plane on the V-groove 11 of support block 1, bearing
Outer ring 5 and V-groove 11 are circumscribed, and one end of the linear mark marked makes linear mark and the bottom of V-groove 11 in bearing bottom
Turning point is point-blank；
3) clamping block 2 is connected to the inner side of bearing inner race 7 using the slot 21 of clamping block 2, the size of clamping block 2 and
Weight can suitably be adjusted according to the load of surveyed bearing, and the base of dial gauge 3 is placed on clamping block 1 (or magnetic base
Absorption is on clamping block)；Balancing weight 4 is placed on to the crown center position of bearing outer ring 5 simultaneously, it is ensured that in the end face of balancing weight 4
Heart position and the straight line that is marked are on same straight line；The measurement head of dial gauge 3 is connected to the apical position of balancing weight 4；
4) the two is made to sink by the deadweight of bearing inner race 7 and clamping block 2 under nature, percentage meter reading now is
Initial radial clearance reading, is designated as a '；
5) and then using external force (external force is including but not limited to portable, crane is hung) by clamping block 2 and institute's survey bearing and counterweight
Block 4 lifts and completely disengages from support block, support block is not stressed, and is now fixed equivalent to bearing inner race 7, by bearing outer ring 5,
The deadweight of balancing weight 4 and retainer 6 sinks to measuring another limiting value of end-play, and percentage meter reading now is radially to swim eventually
Gap reading, the percentage meter reading read now is designated as b ', then the end-play of bearing is (b '-a '), now in simulation reality
End-play under shaft strength state.
The present invention is due to using above technical scheme, and the present invention surveys axle by being placed using support block under vertical state
Hold, the disc oriented manipulation personnel of institute's survey bearing make surveyed bearing consolidate vertically, so that end-play measurement is more accurate, together
When the bearing inner race is preferably sunk using clamping block, another aspect clamping block by external force (it is including but not limited to portable,
Crane is hung) abrasion to crane suspender belt such as gear can be prevented when lifting, it is more convenient to keep the vertical of bearing, makes measurement result more
Plus it is accurate；Balancing weight can also be placed in the crown center position of bearing outer ring, simulation reality by the present invention as preloading
The situation of shaft strength, so as to more accurately measure bearing end-play；The present invention is used for the end-play for measuring large size bearing
It is more accurate and simple in construction, it is easy to mount and dismount.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
1. a kind of bearing end-play measurement assembly, it is characterised in that including support block, clamping block and dial gauge, the support
The upper surface of block is provided with the groove for placing the bearing,
One middle side part of the clamping block is provided with the slot for clamping bearing inner race,
The base of the dial gauge is used to be arranged on the clamping block, and the measurement head of the dial gauge is used to be connected to outside bearing
Circle outside.
2. bearing end-play measurement assembly according to claim 1, it is characterised in that also including balancing weight, for setting
The top when bearing outer ring measures bearing end-play is put, the measurement head of the dial gauge is used to be connected to the balancing weight
On.
3. bearing end-play measurement assembly according to claim 2, it is characterised in that the lower surface of the balancing weight is
The arc on the bearing outer ring top is placed conveniently within, or the lower surface of the balancing weight is for being connected to outside the bearing
Enclose the U-type groove structure on top.
4. bearing end-play measurement assembly according to claim 1, it is characterised in that the groove of the support block is V
Type groove, the lower surface of the support block is horizontal plane.
5. bearing end-play measurement assembly according to claim 1, it is characterised in that the clamping block relative to institute
Another side surface for stating slot is arcuate structure.
6. according to any described bearing end-play measurement assembly of claim 1 to 5, it is characterised in that the clamping block is
Metal material.
7. bearing end-play measurement assembly according to claim 6, it is characterised in that the base of the dial gauge is magnetic
Power base, the magnetic base absorption is on the clamping block.
8. a kind of bearing end-play measuring method, it is characterised in that comprise the following steps：
1) bearing is consolidated vertically and be placed in support block, in the clamping block of inside top clamping one of bearing inner race；
2) dial gauge is fixed on the clamping block, and the measurement head of the dial gauge is connected to the bearing outer ring of the bearing
The top in outside；
3) the two is sunk by the deadweight of the bearing inner race and clamping block under nature, read the reading of now dial gauge
It is designated as a；
4) clamping block and institute's survey bearing are slowly lifted using external force makes the bearing outer ring completely disengage from the support block, reads
The reading for going out now dial gauge is designated as b, then the end-play of surveyed bearing is (b-a).
9. the method that bearing radial internal clearance measuring device according to claim 8 measures bearing clearance, it is characterised in that institute
State step 2) in also include：Balancing weight is configured in the top of the bearing outer ring, and the measurement head of the dial gauge is abutted
In the top of the balancing weight.
10. the method that bearing radial internal clearance measuring device according to claim 8 or claim 9 measures bearing clearance, its feature exists
In the step 1) in also include：Bearing outer ring end face radially symmetric position carry out linear mark, make the straight line mark
One end of note is located at institute's survey bearing bottom, makes the lowermost end of the straight line of the linear mark and the groove point-blank,
And make the end face center position of the clamping block and/or balancing weight with the linear mark point-blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547178.1A CN107101560A (en) | 2017-07-06 | 2017-07-06 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547178.1A CN107101560A (en) | 2017-07-06 | 2017-07-06 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107101560A true CN107101560A (en) | 2017-08-29 |
Family
ID=59664492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710547178.1A Pending CN107101560A (en) | 2017-07-06 | 2017-07-06 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107101560A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655386A (en) * | 2017-08-18 | 2018-02-02 | 中车大连机车车辆有限公司 | The detection method of clearance when locomotive traction motor bearing inner race is not disassembled |
| CN108180812A (en) * | 2017-12-29 | 2018-06-19 | 曹丽美 | A kind of bearing radial internal clearance measuring device and measuring method |
| CN110160454A (en) * | 2019-05-14 | 2019-08-23 | 杭州电子科技大学 | A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method |
| CN110986809A (en) * | 2019-12-23 | 2020-04-10 | 中车株洲电机有限公司 | Method and device for measuring radial clearance of motor bearing assembly |
| CN113654427A (en) * | 2021-06-29 | 2021-11-16 | 中国电建集团山东电力建设第一工程有限公司 | Tool and method for measuring moving and static positions of zero-bearing supported intermediate pressure cylinder during false tile removal |
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| GB933289A (en) * | 1960-08-23 | 1963-08-08 | Skf Svenska Kullagerfab Ab | Improvements in apparatus for measuring the mean radial play in rolling bearings |
| CN102230777A (en) * | 2011-04-07 | 2011-11-02 | 洛阳Lyc轴承有限公司 | Method for precisely measuring radial internal clearance of large-size bearing |
| CN102636095A (en) * | 2012-05-08 | 2012-08-15 | 洛阳Lyc轴承有限公司 | Measurement method for radial clearance of large bearing |
| CN102840813A (en) * | 2012-08-31 | 2012-12-26 | 中电电机股份有限公司 | Bearing clearance measuring device and method thereof |
| CN202661015U (en) * | 2012-05-08 | 2013-01-09 | 洛阳Lyc轴承有限公司 | Measuring device for large-size bearing radial clearance |
| CN206944899U (en) * | 2017-07-06 | 2018-01-30 | 国电联合动力技术有限公司 | A kind of bearing end-play measurement assembly |
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2017
- 2017-07-06 CN CN201710547178.1A patent/CN107101560A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB933289A (en) * | 1960-08-23 | 1963-08-08 | Skf Svenska Kullagerfab Ab | Improvements in apparatus for measuring the mean radial play in rolling bearings |
| CN102230777A (en) * | 2011-04-07 | 2011-11-02 | 洛阳Lyc轴承有限公司 | Method for precisely measuring radial internal clearance of large-size bearing |
| CN102636095A (en) * | 2012-05-08 | 2012-08-15 | 洛阳Lyc轴承有限公司 | Measurement method for radial clearance of large bearing |
| CN202661015U (en) * | 2012-05-08 | 2013-01-09 | 洛阳Lyc轴承有限公司 | Measuring device for large-size bearing radial clearance |
| CN102840813A (en) * | 2012-08-31 | 2012-12-26 | 中电电机股份有限公司 | Bearing clearance measuring device and method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655386A (en) * | 2017-08-18 | 2018-02-02 | 中车大连机车车辆有限公司 | The detection method of clearance when locomotive traction motor bearing inner race is not disassembled |
| CN107655386B (en) * | 2017-08-18 | 2019-09-13 | 中车大连机车车辆有限公司 | The detection method of clearance when locomotive traction motor bearing inner race is not disassembled |
| CN108180812A (en) * | 2017-12-29 | 2018-06-19 | 曹丽美 | A kind of bearing radial internal clearance measuring device and measuring method |
| CN108180812B (en) * | 2017-12-29 | 2019-11-01 | 施小斌 | A kind of bearing radial internal clearance measuring device and measurement method |
| CN110160454A (en) * | 2019-05-14 | 2019-08-23 | 杭州电子科技大学 | A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method |
| CN110160454B (en) * | 2019-05-14 | 2020-09-22 | 杭州电子科技大学 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
| CN110986809A (en) * | 2019-12-23 | 2020-04-10 | 中车株洲电机有限公司 | Method and device for measuring radial clearance of motor bearing assembly |
| CN113654427A (en) * | 2021-06-29 | 2021-11-16 | 中国电建集团山东电力建设第一工程有限公司 | Tool and method for measuring moving and static positions of zero-bearing supported intermediate pressure cylinder during false tile removal |
| WO2023273052A1 (en) * | 2021-06-29 | 2023-01-05 | 中国电建集团山东电力建设第一工程有限公司 | Dynamic and static position measuring tool and method during demolition of medium-pressure cylinder temporary supporting tool of zero bearing support |
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