CN107796280A - The cylindrical measuring basis structure of impact type waterturbine wheel - Google Patents
The cylindrical measuring basis structure of impact type waterturbine wheel Download PDFInfo
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- CN107796280A CN107796280A CN201711120669.4A CN201711120669A CN107796280A CN 107796280 A CN107796280 A CN 107796280A CN 201711120669 A CN201711120669 A CN 201711120669A CN 107796280 A CN107796280 A CN 107796280A
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- Prior art keywords
- bucket
- rectangle
- runner
- impact
- arc section
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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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
Abstract
The present invention relates to a kind of cylindrical measuring basis structure of impact type waterturbine wheel, the two sections of arc sections with enough area extended on each bucket maximum outside diameter position relative to the bucket back side for being divided to water sword symmetrical using the theoretical pivot of impact runner as pivot.Using a kind of cylindrical measuring basis structure of impact type waterturbine wheel disclosed by the invention, the measurement accuracy of impact runner outside diameter can be improved and more accurately realize that impact runner installs centering by different processing datums on same process equipment and reinstalls centering on different process equipments again.
Description
Technical field：
The present invention relates to a kind of cylindrical measuring basis structure of impact type waterturbine wheel.
Background technology：
For hydraulic, the outer profile size of its runner is not only radial dimension of maximum in rotating part
Value, more importantly the size directly decides the installation between associated components and runner and fit dimension.To Flow in Hydraulic Machinery Runner
The accurate measurement of radial direction maximum outside diameter, have become in Flow in Hydraulic Machinery Runner manufacture and installation process most conventional inspection project it
One.For francis turbine runner, due to its radial direction maximum gauge part, ----lower ring ----is revolving body, can be with very convenient
Ground measures its maximum radial dimension.And for axle stream and it is tubular it is this kind of without revolving body under ring runner for, although its structure
Radially the part ----blade --- of maximum gauge-on maximum cylindrical circumferencial direction is discontinuous, but due to adjacent blades
Between overlapping degree it is higher, the excircle configuration of runner is still continuous and closing when overlooking runner, although measurement runner is cylindrical
Diameter is convenient not as francis turbine runner, but still can accurately measure the maximum outside diameter of shaft stream and tubular runner.
And the impact runner for being combined by several independent buckets, its operation principle determine its excircle configuration necessarily
Interrupted.Meanwhile to ensure hydraulic performance, close to cylindrical part, whether working face or the back side are multiple to traditional bucket
Miscellaneous curve shape, it is difficult to the outside diameter of accurately measure impact runner accordingly.
In addition, in impact runner process, inevitably run on same process equipment by difference
Processing datum centering is installed again and the situation of centering is reinstalled on different process equipments.In general, measure
Reference dimension is bigger, then the precision and order of accuarcy measured is higher, conversely, the precision and order of accuarcy that then measure are lower.
Now due to centering can not be carried out to determine in the rotation of impact runner according to the measurement result of impact runner outside diameter
The heart, it can only have to take the second best, according to the runner wheel disc through hole being engaged with main shaft of far smaller than impact runner maximum outside diameter
Diameter measurement carries out centering to determine the pivot of impact runner, and its precision measured and order of accuarcy are much too late
The result of centering is carried out using impact runner outside diameter.
In view of this, it is necessary to a kind of cylindrical measuring basis structure of impact type waterturbine wheel is developed, to guarantee pair
The outside diameter of impact runner carries out accurately measurement and the benchmark positioned as centering in impact runner process.
The content of the invention：
The purpose of the present invention is to disclose a kind of outside diameter for being capable of impingement runner accurately measure and as punching
Hit the cylindrical measuring basis structure of impact runner of centering positioning datum in formula runner process.Technical scheme
It is：A kind of cylindrical measuring basis structure of impact type waterturbine wheel, on each bucket maximum outside diameter position relative to
Extend two sections of circular arcs in the bucket back side for being divided to water sword 7 symmetrical with impact runner theory pivot 14 for pivot
Section：First arc section 20 and the second arc section 21, the first arc section 20 are located at plane 1 on bucket and cut water sword gap alien invasion 2
On the bucket back side 4 of boundary, the second arc section 21 is located at plane 1 on bucket and cuts the bucket back of the body that water sword gap alien invasion 22 has a common boundary
On face 4.The projection of first arc section 20 and the second arc section 21 in impact runner in the radial direction is respectively the first rectangle 23
With the second rectangle 24.First rectangle 23 is identical with the shape of the second rectangle 24, and the ratio between its long bond length is 1.5:1, the first rectangle
The minimum length of the short side 25 of 23 rectangle 24 of short side 6 and second is not less than 100 millimeters.The long side 3 of first rectangle 23 is located at water
On bucket in plane 1, for short side 6 positioned at cutting on water sword gap alien invasion 2, the long side 3 of the first rectangle 23 and the intersection point of short side 6 are bucket
Upper plane 1 and cut intersection point 5 of the water sword gap alien invasion 2 at the bucket back side.The long side 26 of second rectangle 24, which is located on bucket, puts down
On face 1, for short side 25 positioned at cutting on water sword gap alien invasion 22, the long side 26 of the second rectangle 24 is bucket with the intersection point of short side 25
Upper plane 1 is with cutting intersection point 27 of the water sword gap alien invasion 22 at the bucket back side.
Operation principle
The cylindrical measuring basis structure of a kind of impact type waterturbine wheel disclosed by the invention, it is maximum outer in each bucket
Relative to being divided to two pieces of symmetrical theoretical pivots 14 with impact runner of water sword 7 for pivot on circular diameter position
Arc section the first arc section 20 and the second arc section 21 with enough physical dimensions that extend of the bucket back side.Impact type turns
It is identical with the shape of the second rectangle 24 to take turns the first rectangle of rectangle 23 that cylindrical measuring basis structure projects in radial directions, it is grown
The ratio between short side should be controlled 1.5:In the range of 1, short side minimum length is not less than 100 millimeters.
, can will be for conventional punching using a kind of cylindrical measuring basis structure of impact type waterturbine wheel disclosed by the invention
The measurement for hitting impact runner outside diameter that is extremely difficult for formula runner or even can not realizing becomes impingement runner
It is cylindrical so as to substantially increase impact runner to the measurement to the cylindrical measuring basis structure distance of impact runner on bucket
Measurement accuracy.
As shown in fig. 6, by the cylindrical measuring basis structure institute structure of impact runner as impact runner centering benchmark
Into the diameter of impact runner outside diameter measuring basis want the more conventional impact runner wheel as locating and machining benchmark
The diameter of disk through hole 13 is at least twice the above, can more accurately realize impact runner on same process equipment by not
Same processing datum installs centering and reinstalls centering on different process equipments again.
Technique effect：
The outside diameter of impact type waterturbine wheel is that the bucket back side 4 rotates along the theoretical pivot 14 of impact runner
The radial direction maximum gauge of the occluding surface formed.Due to the bucket back side 4 for complicated space curved surface and it is along impact runner
Theoretical pivot 14 rotate at the radial direction maximum gauge of formed occluding surface for plane 1 on bucket and cut water sword gap
Plane 1 is carried on the back with cutting water sword gap alien invasion 22 and bucket on the intersection point 5 in 4 three faces of alien invasion 2 and the bucket back side and on bucket
The two points of the intersection point 27 in 4 three faces in face, for the outside diameter measuring method of traditional impact type waterturbine wheel, punching
The outside diameter for hitting formula rotary wheel of water turbine rotates the envelope formed by theoretical pivot 14 of the bucket back side 4 along impact runner
The radial direction maximum gauge of closed surface is rendered as a circle, and for specific measurement, common calliper is in measurement space two
Distance between point, this is extremely difficult for survey crew and it is difficult to ensure that measurement accuracy.And use disclosed by the invention
A kind of cylindrical measuring basis structure of impulse turbine mould wheel, just by the outside diameter measuring method of impact type waterturbine wheel by
The outside diameter of traditional impingement rotary wheel of water turbine is that the bucket back side 4 rotates along the theoretical pivot 14 of impact runner
The circle that the radial direction maximum gauge of the occluding surface formed is presented measures, and is promoted to pair with intersection point 5 and intersection point 27 along impact
The theoretical pivot 14 of formula runner rotates formed impact type waterturbine wheel radial direction maximum gauge identical by the first circle
Theoretical pivot 14 of the arc section 21 of segmental arc 20 and second along impact runner rotates the measurement of formed face of cylinder diameter.
For measurement for impact type waterturbine wheel outside diameter, the diameter on the face of cylinder is measured than two spacing of measurement space
From operation difficulty it is much smaller and enough measurement accuracy can be ensured.
The centering precision of machined piece is directly proportional to the centering reference dimension of workpiece.Pair with same process equipment and same
For one work piece, the centering reference dimension of workpiece is bigger, then centering precision is higher.Due to being looked for as impact runner
The diameter for the impact runner outside diameter measuring basis that the cylindrical measuring basis structure of impact runner of positive benchmark is formed will
The diameter of the more conventional impact runner wheel disc through hole 13 as locating and machining benchmark is at least twice the above, using the present invention
After the disclosed cylindrical measuring basis structure of impact runner, it can more accurately realize impact runner in same process equipment
On centering be installed again by different processing datums and reinstall centering on different process equipments.The present invention has knot
Structure is simple, without special technological equipment and it is easy to implement the characteristics of.After the structure, because it is located at the non-mistake at the bucket back side
Flow area and area very little, will not the hydraulic performance of impingement runner have a negative impact, but impact type can be greatly enhanced and turned
Take turns the precision that centering positions again in outside diameter measurement and process.
Brief description of the drawings：
Fig. 1 is impact type waterturbine wheel bucket face view disclosed by the invention
Fig. 2 is that impact type waterturbine wheel disclosed by the invention is bowed direction view
Fig. 3 is the radial view of impact type waterturbine wheel bucket disclosed by the invention
Fig. 4 is that impulse turbine model runner bucket disclosed by the invention cuts water sword gap working face partial view 1
Fig. 5 is that impulse turbine model runner bucket disclosed by the invention cuts water sword gap working face partial view
Fig. 6 is impact type waterturbine wheel radial cross-section disclosed by the invention
Embodiment：
The cylindrical measuring basis structure of a kind of impact type waterturbine wheel disclosed by the invention, it is every as shown in Figure 1 and Figure 2
It is with impact runner theory pivot 14 relative to dividing water sword 7 symmetrical on one bucket maximum outside diameter position
Extend two sections of arc sections in the bucket back side of pivot：First arc section 20 and the second arc section 21, the first arc section 20
In plane on bucket 1 and cut on the bucket back side of the boundary of water sword gap alien invasion 2, the second arc section 21 is located at plane 1 on bucket
On the bucket back side with cutting the boundary of water sword gap alien invasion 22.First arc section 20 and the second arc section 21 are in impact runner footpath
It is respectively the first rectangle 23 and the second rectangle 24 to the projection on direction.As shown in Figure 3, Figure 4, the first rectangle 23 and the second rectangle
24 shapes are identical, and the ratio between its long bond length is 1.5:1, the short side 25 of the rectangle 24 of short side 6 and second of the first rectangle 23 is most
Small length is not less than 100 millimeters.The long side 3 of first rectangle 23 is located on bucket in plane 1, and short side 6, which is located at, to be cut outside water sword gap
On facade 2, as shown in figure 5, the intersection point of the long side 3 of the first rectangle 23 and short side 6 is the upper plane 1 of bucket and cut outside water sword gap
Intersection point 5 of the facade 2 at the bucket back side.The long side 26 of second rectangle 24 is located on bucket in plane 1, and short side 25 slits positioned at cutting water sword
On mouth alien invasion 22, the long side 26 of the second rectangle 24 is stood for the upper plane 1 of bucket with the intersection point of short side 25 with cutting outside water sword gap
Intersection point 27 of the face 22 at the bucket back side.
In general, the bucket number of impact runner is even number, is employed as rushing for bucket back side local extensions
After hitting the cylindrical measuring basis structure of formula runner, the first arc section 20 of each bucket is with it to the first arc section 20 of bucket
Or the second arc section 21 of each bucket and its distance to the second arc section 21 to bucket are the outer of impact runner
Circular diameter.This operation for being difficult to carry out on conventional impact runner of measurement impact runner outside diameter, using the present invention
After the disclosed cylindrical measuring basis structure of impact runner, having reformed into only need to be to runner to outside the impact runner on bucket
The distance of circle measuring basis structure measures ----not less than 150 millimeters arc length, 100 mm wides arc section on measure circle
Diameter ----this conventional Geometrical Parameter Testing.Undoubtedly substantially increase the cylindrical measurement accuracy of impact runner.
Meanwhile as shown in Fig. 2 by 90 ° of amesdials being arranged at impact runner outside diameter 9 and amesdial
10, it can realize and adjust the theoretical pivot 14 for the impact runner being fixed on processing platform to the rotation with processing platform
Turn the purpose of center superposition；As shown in figure 4, the circular arc of amesdial 12 and second being arranged on the first arc section 20 of same bucket
Section 21 on amesdial 11 can realize by the theoretical pivot 14 for the impact runner being fixed on processing platform adjust to
The purpose vertical with processing platform plane.Because the impact runner being made up of the cylindrical measuring basis structure of impact runner is cylindrical
The diameter of diameter measurement benchmark wants the diameter of the more conventional impact runner wheel disc through hole 13 as locating and machining benchmark at least
The above is twice, after the cylindrical measuring basis structure of impact runner disclosed by the invention, can more accurately realize impact
Formula runner installs centering and the weight on different process equipments again on same process equipment by different processing datums
New installation centering.
In impact runner process, impact runner is fixed on processing platform and together revolved with processing platform
Turn.Relative to the measurement gauge outfit of the static amesdial 9 of processing platform and amesdial 10 act on bucket the first arc section 20 or
On second arc section 21.Impact runner on same process equipment by different processing datums install again centering and
During reinstalling centering on different process equipments, the processing platform of fixed impact runner slowly rotates.If punching
Hit formula runner theory pivot 14 and processing platform centre of gyration decentraction, the first arc section 20 of different buckets or the second circle
When segmental arc 21 is by the measurement gauge outfit of amesdial 9 and amesdial 10, the measurement indicating value of amesdial 9 and amesdial 10 can become
Change, the relative position of impact runner and processing platform is adjusted according to the measurement indicating value of amesdial 9 and amesdial 10.Work as amesdial
9 and amesdial 10 the increase of measurement indicating value when, impact runner is moved to away from amesdial direction on processing platform, and worked as
When the measurement indicating value of amesdial 9 and amesdial 10 reduces, impact runner is moved to close to amesdial direction on processing platform
It is dynamic, so move in circles, until the measurement indicating value of amesdial 9 and amesdial 10 no longer changes, then it represents that impact runner is theoretical
Pivot 14 overlaps with the processing platform centre of gyration；Distinguish relative to the static amesdial 11 of processing platform and amesdial 12
It is arranged on the second arc section 21 and the first arc section 20 of same bucket.Impact runner is on same process equipment by not
During same processing datum installs centering and reinstalls centering on different process equipments again, fixed impact type
The processing platform of runner slowly rotates.If impact runner theory pivot 14 and processing platform plane out of plumb, no
During with bucket by the measurement gauge outfit of amesdial 11 and amesdial 12, the measurement indicating value of amesdial 11 and amesdial 12 can become
Change, the relative position of impact runner and processing platform is adjusted according to the measurement indicating value of amesdial 11 and amesdial 12.When thousand points
When the measurement indicating value of table 11 is bigger than the measurement indicating value of amesdial 12, the adjustment of appropriate height is encased inside between the bucket and processing platform
Pad, make amesdial 11 consistent with the measurement indicating value trend of amesdial 12, when amesdial 11 measurement indicating value than amesdial 12 survey
Indicating value hour is measured, in the bucket to the adjusting pad that appropriate height is encased inside between bucket and processing platform, making amesdial 11 and thousand points
The measurement indicating value of table 12 tends to consistent.So move in circles, until the measurement indicating value of amesdial 11 and the measurement of amesdial 12 are shown
It is worth identical, then it represents that impact runner theory pivot 14 is vertical with processing platform plane.Work piece impact runner
Theoretical pivot 14 had not only overlapped but also vertical with processing platform plane with the processing platform centre of gyration of process equipment, so as to realize
Impact runner is installed centering by different processing datums on the same process equipment and set in different processing again
The standby purpose for above reinstalling centering.Simultaneously as the cylindrical measurement base of impact runner as impact runner centering benchmark
The diameter for the impact runner outside diameter measuring basis that quasi- structure the first arc section 20 and the second arc section 21 are formed will be compared with
The diameter of the conventional impact runner wheel disc through hole 13 as locating and machining benchmark is at least twice the above, using of the invention public
After the cylindrical measuring basis structure of impact runner opened, it can more accurately realize impact runner on same process equipment
Centering is installed again by different processing datums and reinstalls centering on different process equipments.
Claims (1)
1. a kind of cylindrical measuring basis structure of impact type waterturbine wheel, it is characterized in that：In each bucket maximum outside diameter
Relative to the bucket back of the body for dividing water sword (7) symmetrical with impact runner theory pivot (14) for pivot on position
Extend two sections of arc sections in face：First arc section (20) and the second arc section (21), the first arc section (20), which is located on bucket, puts down
On the bucket back side (4) of the face (1) with cutting water sword gap alien invasion (2) boundary, the second arc section (21) is located at plane (1) on bucket
On the bucket back side (4) with cutting water sword gap alien invasion (22) boundary, the first arc section (20) and the second arc section (21) are rushing
The projection of the formula runner of hitting in the radial direction is respectively the first rectangle (23) and the second rectangle (24), the first rectangle (23) and the second square
Shape (24) shape is identical, and the ratio between long bond length of the first rectangle (23) and the second rectangle (24) is 1.5:1, the first rectangle (23)
Short side (6) and the second rectangle (24) short side (25) minimum length be not less than 100 millimeters, the long side of the first rectangle (23)
(3) in plane (1) on bucket, short side (6), which is located at, to be cut on water sword gap alien invasion (2), the long side (3) of the first rectangle (23)
It is the upper plane (1) of bucket with the intersection point of short side (6) and cuts intersection point (5) of the water sword gap alien invasion (2) at the bucket back side, second
The long side (26) of rectangle (24) is located on bucket in plane (1), and short side (25), which is located at, to be cut on water sword gap alien invasion (22), and second
The long side (26) of rectangle (24) for the upper plane (1) of bucket and cuts water sword gap alien invasion (22) in water with the intersection point of short side (25)
The intersection point (27) at the bucket back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120669.4A CN107796280A (en) | 2017-11-14 | 2017-11-14 | The cylindrical measuring basis structure of impact type waterturbine wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120669.4A CN107796280A (en) | 2017-11-14 | 2017-11-14 | The cylindrical measuring basis structure of impact type waterturbine wheel |
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| CN107796280A true CN107796280A (en) | 2018-03-13 |
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|---|---|---|---|
| CN201711120669.4A Pending CN107796280A (en) | 2017-11-14 | 2017-11-14 | The cylindrical measuring basis structure of impact type waterturbine wheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292026A (en) * | 2023-05-16 | 2023-06-23 | 哈尔滨电机厂有限责任公司 | Impact type continuous inflow water turbine runner |
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| CN201289362Y (en) * | 2008-10-29 | 2009-08-12 | 广东省韶关众力发电设备有限公司 | Device for measuring round degree of large-sized through-flow generator rotor |
| CN101576367A (en) * | 2009-06-19 | 2009-11-11 | 天津市天发重型水电设备制造有限公司 | Rotor measuring device of large vertical water turbine generator |
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| CN204944381U (en) * | 2015-05-08 | 2016-01-06 | 无锡宜友机电制造有限公司 | A kind of can the measurement mechanism of Quick Measurement trisection impeller of rotor external diameter |
| CN106017273A (en) * | 2016-05-04 | 2016-10-12 | 哈尔滨电气动力装备有限公司 | Large shielding motor flywheel cone precision measuring method |
| CN106152910A (en) * | 2015-04-16 | 2016-11-23 | 常州兰翔机械有限责任公司 | Measure the using method of the measuring tool for outer diameter of odd-numbered blade rotor |
| CN106338262A (en) * | 2016-11-07 | 2017-01-18 | 哈尔滨电机厂有限责任公司 | Method for measuring included angle of jet flow of impact type water turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6145901A (en) * | 1984-08-10 | 1986-03-06 | Nagura Tekkosho:Kk | Automatic measuring machine for screw diameter |
| US20030079359A1 (en) * | 2001-10-30 | 2003-05-01 | Richards John E. | Tube diameter gage assembly |
| US20050084367A1 (en) * | 2003-02-28 | 2005-04-21 | Aggidis George A. | Turbines and in particular pelton wheel turbines |
| CN2612927Y (en) * | 2003-04-04 | 2004-04-21 | 合肥工业大学 | Novel rolling wheel method gauge pin arrangement |
| CN201289362Y (en) * | 2008-10-29 | 2009-08-12 | 广东省韶关众力发电设备有限公司 | Device for measuring round degree of large-sized through-flow generator rotor |
| CN101576367A (en) * | 2009-06-19 | 2009-11-11 | 天津市天发重型水电设备制造有限公司 | Rotor measuring device of large vertical water turbine generator |
| CN102862018A (en) * | 2012-09-04 | 2013-01-09 | 哈尔滨汽轮机厂有限责任公司 | Bacterial type blade simulation assembling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292026A (en) * | 2023-05-16 | 2023-06-23 | 哈尔滨电机厂有限责任公司 | Impact type continuous inflow water turbine runner |
| CN116292026B (en) * | 2023-05-16 | 2023-08-18 | 哈尔滨电机厂有限责任公司 | Impact type continuous inflow water turbine runner |
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Application publication date: 20180313 |
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