CN107246835A - Internal measuring micrometer is driven outside a kind of rotor the air gap - Google Patents
Internal measuring micrometer is driven outside a kind of rotor the air gap Download PDFInfo
- Publication number
- CN107246835A CN107246835A CN201710614373.1A CN201710614373A CN107246835A CN 107246835 A CN107246835 A CN 107246835A CN 201710614373 A CN201710614373 A CN 201710614373A CN 107246835 A CN107246835 A CN 107246835A
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- China
- Prior art keywords
- gear
- air gap
- wheel hub
- square
- measuring tool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Abstract
The invention discloses internal measuring micrometer is driven outside a kind of rotor the air gap, belong to generator stator-rotator the air gap survey tool technical field.Internal measuring micrometer is driven outside the rotor the air gap includes moving casing, fixed sleeving, torque transmission lever, built-up gear, two measurement heads and hollow measuring tool wheel hub, it is labeled with measuring dimensional values on fixed sleeving and moving casing, fixed sleeving is sheathed on outside torque transmission lever, one end of fixed sleeving and one end of moving casing are connected, and the other end is connected with measuring tool wheel hub；One end of torque transmission lever is inserted in the square guide groove in moving casing, and the other end is connected through measuring tool wheel hub with built-up gear；Built-up gear and two measurement heads are in measuring tool wheel hub, and the two ends of the first square button in built-up gear are inserted in two measurement heads respectively.The present invention solves the efficiency of rotor the air gap measurement work and the accuracy problem of measurement data, substantially reduces the measurement working time, it is ensured that the accuracy of measurement.
Description
Technical field
The present invention relates to generator stator-rotator the air gap survey tool technical field, and in particular to a kind of rotor air
Internal measuring micrometer is driven outside gap.
Background technology
Existing unit rotor clearance measurement tool is to utilize timber wedge daughter board and homemade simple measurement tool.Using wood
When wedge is measured, the side clearance of rotor two can only be measured.Measuring method is first uniformly to be smeared wedge both sides with chalk,
Then wedge is inserted into tested point, when insertion in place when, wedge is taken out, then with vernier caliper measurement wedge trace
Place.Length at wedge trace changes with insertion dynamics and measuring point, so the accuracy of measurement is poor.Using the simple work of self-control
During tool measurement, the degree of accuracy improves a lot, but measurement process is relatively difficult, it is necessary to which side head is put in into detection, side head in gap
It is excessive, too small to be required for be adjusted outside survey tool pull-out the air gap, put in the air gap and carry out again after adjustment
Measurement, due to feel and the factor such as presetting influence, generally require repeatedly will survey tool pull out carried out outside rotor gap it is presetting,
When being adjusted to appropriate length, a measuring point takes 30 minutes substantially, greatly increases the working time, extends the duration.Surveyed for existing
The completion rotor the air gap measurement work that measuring micrometer can be outstanding outside this rotor the air gap on the basis of amount instrument,
During measurement, side head need to be only put in rotor the air gap, then rotate outer drive and survey chi to reach adjustment side head length
Purpose, is carrying out waving side head, is looking for air gap value.And reading air gap value at survey chi is driven outside.Whole work is time-consuming short,
Measurement gained air gap value is accurate, has very great help to center adjustment, tends to shorten 3 day duration.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide internal measuring micrometer is driven outside a kind of rotor the air gap, solving
The efficiency of rotor the air gap measurement work and the accuracy problem of measurement data, substantially reduce the measurement working time,
It ensure that the accuracy of measurement.
To achieve these goals, the technical solution adopted by the present invention is：
Internal measuring micrometer, including moving casing, fixed sleeving, torque transmission lever, group are driven outside a kind of rotor the air gap
Close and be labeled with measuring size on gear, two measurement heads and hollow measuring tool wheel hub, the fixed sleeving and the moving casing
Numerical value, the fixed sleeving is sheathed on outside the torque transmission lever, one end of the fixed sleeving and the one of the moving casing
End is connected by screw thread, and the other end of the fixed sleeving is connected with the measuring tool wheel hub；The measuring tool wheel hub is located at institute
State the lower section of torque transmission lever, the square guide rod of one end of the torque transmission lever is inserted in square in the moving casing
In guide groove, the other end of the torque transmission lever is connected through the measuring tool wheel hub with the built-up gear；The combination tooth
Wheel and two measurement head in the measuring tool wheel hub, and two measurement head be located at respectively in the measuring tool wheel hub two
The two ends of the first square button in side, the built-up gear are inserted in the moment of torsion transmission groove in two measurement head respectively.
Further, the built-up gear includes little gear and gear wheel, the little gear and the torque transmission lever
Lower end is connected, and the little gear is located at the upper end side of the gear wheel and passes through multiple tooth engaged transmission with the gear wheel
Connection；The center of the gear wheel, which is offered, to be inserted with two ends in one first square opening, first square opening and exposes institute
State the first square button of the first square opening, the two ends of first square button insert respectively the hollow bulb of the measuring tool wheel hub and with
Two measurement head is connected.
Further, the diameter ratio of the little gear and gear wheel is 1:4.
Further, the second square opening, the second square button of the torque transmission lever lower end are offered in the little gear
Cooperated through the vertical slots that the measuring tool hub top is opened up with second square opening.
Further, the top of the moving casing, which is offered, offers in the middle part of square groove, the square groove for putting
Put the screw of fixed screw.
Further, the bottom of the moving casing is labeled with measurement start-finish line and measures centigrade system line.
Further, the measuring tool wheel hub is made up of two halves hub unit, and the gear wheel in the built-up gear is located at institute
State the centre of two halves hub unit.
Further, the half hub unit in the two halves hub unit offers one close to upper end side and erected with described
The level trough of straight trough connection, the little gear is in the level trough.
Further, the lower end of the torque transmission lever is additionally provided with alignment pin, the alignment pin and the measuring tool wheel hub
Cotter way coordinate, and fit clearance be 0.03-0.05mm.
In summary, by adopting the above-described technical solution, beneficial effects of the present invention are：
The present invention is transmitted by setting torque transmission lever, built-up gear and measuring tool wheel hub etc. using moving casing, torque
The combination of bar, built-up gear and measuring tool wheel hub etc., instead of in investigation mission outside the city or town by the way of interior survey is adjusted in outer drive and surveys multiple, cumbersome
Work is measured, adjustment analysis is more accurate, supported while also providing reliable data for adjustment work, efficiently solve rotor empty
The efficiency of gas clearance measurement work and the accuracy problem of measurement data, substantially reduce the measurement working time, improve work effect
Rate, and measuring accuracy is higher, it is ensured that the accuracy of measurement.
Brief description of the drawings
Fig. 1 is the structural representation that internal measuring micrometer is driven outside a kind of rotor the air gap of the embodiment of the present invention；
Fig. 2 is the exploded view that internal measuring micrometer is driven outside a kind of rotor the air gap of the embodiment of the present invention；
Fig. 3 is the structural representation that built-up gear in internal measuring micrometer is driven outside a kind of rotor the air gap of the embodiment of the present invention
Figure.
In figure, 1- moving casings, 11- square grooves, 2- fixed sleevings, 3- torque transmission levers, the square guide rods of 31-, 32-
Two square buttons, 33- alignment pins, 4- built-up gears, 41- little gears, 42- gear wheels, the square buttons of 43- first, 44- square openings, 5-
Measurement head, 51- moment of torsion transmission grooves, 6- measuring tool wheel hubs, 61- vertical slots, 62- level troughs.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It should be noted that when component is referred to as " being fixed on " another component, it can be directly on another component
Or can also have component placed in the middle.When a component is considered as " connection " another component, it can be directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being arranged at " another component, it
Can be set directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " level ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Embodiment
As shown in Figure 1-Figure 3 the assembly orientation of the present invention (arrow in wherein Fig. 2 represent), a kind of rotor the air gap
Outer drive internal measuring micrometer, including moving casing 1, fixed sleeving 2, torque transmission lever 3, built-up gear 4, two measurement heads 5 and hollow
Measuring tool wheel hub 6.It is labeled with measuring dimensional values on fixed sleeving 2 and moving casing 1.The top of moving casing 1 is offered
Square groove 11, the middle part of square groove 11 offers screw (not shown), and screw is used for the screw for having placed fixation, this
Moving casing 1 is fixed with torque transmission lever 3 by the screw in embodiment.The bottom of moving casing 1 is labeled with measuring start-stop
Line and measurement centigrade system line.Fixed sleeving 2 is sheathed on outside the middle part of torque transmission lever 3, one end of fixed sleeving 2 and movable sleeve
One end of pipe 1 is connected by screw thread, and the other end of fixed sleeving 2 is connected with measuring tool wheel hub 6.Measuring tool wheel hub 6 is located at torque
The lower section of transmission lever 3, the square guide rod 31 of the upper end of torque transmission lever 3 is inserted in the square guide groove in moving casing 1,
The lower end of torque transmission lever 3 is connected through measuring tool wheel hub 6 with built-up gear 4.The measurement head 5 of built-up gear 4 and two is located at measuring tool
In wheel hub 6, and two measurement heads 5 are located at the both sides in measuring tool wheel hub 6 respectively, and measurement head 5 is connected through a screw thread with measuring tool wheel hub 6.
Measuring tool wheel hub 6 is made up of two halves hub unit, and the gear wheel 42 in built-up gear 4 is located at the centre of two halves hub unit.Combination
The two ends of the first square button 43 in gear 4 are inserted in the moment of torsion transmission groove 51 in two measurement heads 5 respectively.
Further, the built-up gear 4 in the present embodiment includes little gear 41 and gear wheel 42 (such as Fig. 3), little gear 41
Diameter ratio with gear wheel 42 is 1:4, the lower end of little gear 41 and torque transmission lever 3 is connected.Little gear 41 and gear wheel
42 be bevel gear, and little gear 41 is located at the upper end side of gear wheel 42 and is connected by meshing transmission with gear wheel 42 by multiple tooth.
The center of gear wheel 42, which is offered, to be inserted with two ends and exposes in one first square opening (not shown), the first square opening
The hollow bulb of the measuring tool wheel hub 6 (i.e. two halves are inserted at first square button 43 of one square opening, the two ends of the first square button 43 respectively
The hollow bulb of hub unit) and be connected with two measurement heads 5.The second square opening 44, torque transmission are offered in little gear 41
The vertical slots 61 that second square button 32 of the lower end of bar 3 is opened up through the top of measuring tool wheel hub 6 cooperate with the second square opening 44.Group
One is offered into the half hub unit in the two halves hub unit of measuring tool wheel hub 6 close to upper end side to connect with vertical slots 61
Level trough 62, little gear 41 is in level trough 62.The present embodiment is by using the little gear 41 and canine tooth for being shaped as bevel gear
Wheel 42 is intermeshed, and sets the first square opening, the first square button 43, the second square opening 44, the second square button 32, vertical slots 61
With level trough 62 etc., make little gear 41 and gear wheel 42 and the connectivity of torque transmission lever 3 and measuring tool wheel hub 6 more firm, assemble
Fiting effect is more excellent, further ensures and adjusts measurement head 5 (i.e. outer to drive interior adjust) by moving casing 1 with rotor air
Measurement efficiency and accuracy that gap is measured.
Further, the fit clearance at fixed sleeving 2 and the middle part of torque transmission lever 3 is 0.05mm- in the present invention
0.10mm, the present embodiment is preferably 0.05mm.The two ends of fixed sleeving 2 (one end for being connected with moving casing 1 and connect with measuring tool wheel hub
The one end connect) fit clearance be preferably 0.03mm in 0.03mm-0.05mm, the present embodiment.The lower end of torque transmission lever 3
Alignment pin 33 is additionally provided with, alignment pin 33 coordinates with the cotter way in measuring tool wheel hub 6, and fit clearance is 0.03-0.05mm, this implementation
It is preferably 0.03mm in example, selected fit clearance can make to reach the mesh rotated freely between torque transmission lever 3 and measuring tool wheel hub 6
's.
Before measurement, zero-bit is checked to measurement data scale on moving casing 1 and fixed sleeving 2 first, moving casing 1 and solid
Determine on sleeve pipe 2 to tighten after measurement data scale checks zero-bit, square led using what the screw of an adaptation was fixed in moving casing 1
To groove outer wall, can together with moving casing synchronous rotary.
The present invention measuring principle be：The measuring tool wheel hub 6 of the present invention is put into the air gap, movable sleeve is rotated clockwise
Pipe 1, makes moving casing 1 drive torque transmission lever 3 to rotate, torsional forces is transferred in measuring tool wheel hub 6 and combines tooth by torque transmission lever 3
Wheel 4, drives built-up gear 4 to rotate, torsional forces is transferred in measuring tool wheel hub 6 by the two ends of the square button 43 in built-up gear 4 again
The measurement head 5 of both sides, stretches out the rotation in measuring tool wheel hub 6 of measurement head 5, you can to measure the air gap data.Due to measurement
First 5 stretch out after can only retract and can just be put into the air gap, when that need to measure again or during duplicate measurements, by being lived counterclockwise to rotation
Dynamic sleeve pipe 1, finally makes the rotation in measuring tool wheel hub 6 of measurement head 5 retract, and again puts the measuring tool wheel hub 6 of the present invention between air into
In gap, repeating above-mentioned action makes the stretching of measurement head 5 to measure again or duplicate measurements.
The present invention is passed by setting torque transmission lever 3, built-up gear 4 and measuring tool wheel hub 6 etc. using moving casing 1, torque
Pass the combination of bar 3, built-up gear 4 and measuring tool wheel hub 6 etc., using in outer drive adjust in survey by the way of instead of investigation mission outside the city or town in survey repeatedly,
Cumbersome measurement work, adjustment analysis is more accurate, and also providing reliable data for adjustment work supports, efficiently solves rotor
The efficiency of the air gap measurement work and the accuracy problem of measurement data, substantially reduce the measurement working time, improve work
Efficiency, and measuring accuracy is higher, it is ensured that the accuracy of measurement.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
The equal change or modification change completed under bright patent claim, the technical spirit suggested by all present invention, all should belong to
Cover the scope of the claims in the present invention.
Claims (9)
1. drive internal measuring micrometer outside a kind of rotor the air gap, it is characterised in that including moving casing, fixed sleeving, torque
It is labeled with transmission lever, built-up gear, two measurement heads and hollow measuring tool wheel hub, the fixed sleeving and the moving casing
Dimensional values are measured, the fixed sleeving is sheathed on outside the torque transmission lever, one end of the fixed sleeving and the activity
One end connection of sleeve pipe, the other end of the fixed sleeving is connected with the measuring tool wheel hub；The measuring tool wheel hub is located at the power
The lower section of square transmission lever, one end of the torque transmission lever is inserted in the square guide groove in the moving casing, the power
The other end of square transmission lever is connected through the measuring tool wheel hub with the built-up gear；The built-up gear and two measurement head
In the measuring tool wheel hub, and two measurement head is located at the both sides in the measuring tool wheel hub, the built-up gear respectively
In the two ends of the first square button insert respectively in the moment of torsion transmission groove in two measurement head.
2. drive internal measuring micrometer outside rotor the air gap according to claim 1, it is characterised in that the built-up gear
Including little gear and gear wheel, the lower end of the little gear and the torque transmission lever is connected, and the little gear is located at institute
State the upper end side of gear wheel and be connected by meshing transmission with the gear wheel by multiple tooth；The center of the gear wheel is opened up
Have in one first square opening, first square opening and be inserted with the first square button that first square opening is exposed at two ends, it is described
The two ends of first square button are inserted the hollow bulb of the measuring tool wheel hub and are connected with two measurement head respectively.
3. drive internal measuring micrometer outside rotor the air gap according to claim 2, it is characterised in that the little gear with
The diameter ratio of gear wheel is 1:4.
4. drive internal measuring micrometer outside rotor the air gap according to claim 2, it is characterised in that in the little gear
Offer the second square opening, the second square button of the torque transmission lever lower end through the measuring tool hub top open up it is vertical
Groove cooperates with second square opening.
5. drive internal measuring micrometer outside rotor the air gap according to claim 1, it is characterised in that the moving casing
Top offer the screw offered in the middle part of square groove, the square groove for placing fixed screw.
6. drive internal measuring micrometer outside rotor the air gap according to claim 1, it is characterised in that the moving casing
Bottom be labeled with measurement start-finish line and measure centigrade system line.
7. drive internal measuring micrometer outside rotor the air gap according to claim 4, it is characterised in that the measuring tool wheel hub
It is made up of two halves hub unit, the gear wheel in the built-up gear is located at the centre of the two halves hub unit.
8. drive internal measuring micrometer outside rotor the air gap according to claim 7, it is characterised in that：The two halves wheel hub
Half hub unit in component offers a level trough connected with the vertical slots close to upper end side, and the little gear is set
In in the level trough.
9. drive internal measuring micrometer outside rotor the air gap according to claim 1, it is characterised in that the torque transmission
The lower end of bar is additionally provided with alignment pin, and the alignment pin coordinates with the cotter way in the measuring tool wheel hub, and fit clearance is 0.03-
0.05mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614373.1A CN107246835B (en) | 2017-07-25 | 2017-07-25 | Stator and rotor air gap external drive internal micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614373.1A CN107246835B (en) | 2017-07-25 | 2017-07-25 | Stator and rotor air gap external drive internal micrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107246835A true CN107246835A (en) | 2017-10-13 |
| CN107246835B CN107246835B (en) | 2019-12-13 |
Family
ID=60011960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710614373.1A Active CN107246835B (en) | 2017-07-25 | 2017-07-25 | Stator and rotor air gap external drive internal micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107246835B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020145A (en) * | 2017-11-17 | 2018-05-11 | 中国水利水电第十四工程局有限公司 | A kind of generator stator rotor clearance measurement tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170903A (en) * | 1994-12-19 | 1996-07-02 | Chubu Plant Service:Kk | Gap measuring instrument |
| CN200947027Y (en) * | 2006-08-16 | 2007-09-12 | 王强 | Generator stator/rotor air gap measuring gauge |
| CN105823397A (en) * | 2016-05-05 | 2016-08-03 | 广西桂冠电力股份有限公司大化水力发电总厂 | Hydro-generator set air gap measuring method and measuring device |
| CN106441024A (en) * | 2016-09-30 | 2017-02-22 | 马鞍山钢铁股份有限公司 | Generator air gap measuring device |
-
2017
- 2017-07-25 CN CN201710614373.1A patent/CN107246835B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170903A (en) * | 1994-12-19 | 1996-07-02 | Chubu Plant Service:Kk | Gap measuring instrument |
| CN200947027Y (en) * | 2006-08-16 | 2007-09-12 | 王强 | Generator stator/rotor air gap measuring gauge |
| CN105823397A (en) * | 2016-05-05 | 2016-08-03 | 广西桂冠电力股份有限公司大化水力发电总厂 | Hydro-generator set air gap measuring method and measuring device |
| CN106441024A (en) * | 2016-09-30 | 2017-02-22 | 马鞍山钢铁股份有限公司 | Generator air gap measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 林太举: "一种新型水轮发电机定转子空气间隙监测系统", 《华东电力》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020145A (en) * | 2017-11-17 | 2018-05-11 | 中国水利水电第十四工程局有限公司 | A kind of generator stator rotor clearance measurement tool |
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| Publication number | Publication date |
|---|---|
| CN107246835B (en) | 2019-12-13 |
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