CN107894197A - The cylindrical measurement structure of impulse turbine model runner - Google Patents
The cylindrical measurement structure of impulse turbine model runner Download PDFInfo
- Publication number
- CN107894197A CN107894197A CN201711120798.3A CN201711120798A CN107894197A CN 107894197 A CN107894197 A CN 107894197A CN 201711120798 A CN201711120798 A CN 201711120798A CN 107894197 A CN107894197 A CN 107894197A
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- China
- Prior art keywords
- bucket
- rectangle
- runner
- turbine model
- impulse turbine
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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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
Abstract
The present invention relates to a kind of cylindrical measurement structure of impulse turbine model runner, 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 impulse turbine model runner as pivot.The diameter on the measurement face of cylinder is more much smaller than the operation difficulty of distance between two points of measurement space and can ensure enough measurement accuracy, using a kind of cylindrical measurement structure of impulse turbine model runner disclosed by the invention, the measurement accuracy of impulse turbine model runner outside diameter can be improved.
Description
Technical field：
The present invention relates to a kind of cylindrical measurement structure of impulse turbine model runner.
Background technology：
For hydraulic model, the outer profile size of its runner be not only in rotating part it is radial dimension of most
Big value, more importantly the size directly decides the installation between associated components and runner and fit dimension.To hydraulic mould
The accurate measurement of type runner radial direction maximum outside diameter, have become most conventional in the manufacture of hydraulic model runner and installation process
One of inspection project.For Francis turbine model runner, because ring is revolving body under its radial direction maximum gauge part,
Its maximum radial dimension can easily be measured.And there is no ring under revolving body for axle stream and tubular turbine are this kind of
For model runner, although the part blade of its composition radial direction maximum gauge is discontinuous on maximum cylindrical circumferencial direction,
But because the overlapping degree between adjacent blades is higher, the excircle configuration of model runner is still continuous and closed when overlooking runner
, although measurement model runner outside diameter is convenient not as francis turbine runner, but still shaft can be accurately measured
The maximum outside diameter of stream and tubular turbine model runner.And the impact for being combined by several independent buckets
Formula hydraulic turbine model runner, because its operation principle determines that its excircle configuration is necessarily interrupted.Meanwhile to ensure waterpower
Can, close to cylindrical part, whether working face or the back side are complicated curve shape to traditional bucket, it is difficult to accurate accordingly
Really measure the outside diameter of impulse turbine model runner.
In view of this, it is necessary to a kind of cylindrical measurement structure of impulse turbine model runner is developed, to guarantee pair
The outside diameter of impulse turbine model runner is accurately measured.
The content of the invention：
The purpose of the present invention is to disclose a kind of outside diameter for being capable of impingement hydraulic turbine model runner to carry out accurately
The cylindrical measurement structure of impulse turbine model runner of measurement.The technical scheme is that：A kind of impulse turbine mould
The cylindrical measurement structure of type runner, impacted on each bucket maximum outside diameter position relative to dividing water sword 7 symmetrical
The theoretical pivot 14 of formula runner extends two sections of arc sections for the bucket back side of pivot：First arc section 20 and second
Arc section 21, the first arc section 20 are located at plane 1 on bucket and cut on the bucket back side 4 of the boundary of water sword gap alien invasion 2, second
Arc section 21 is located at plane 1 on bucket and cut on the bucket back side 4 of the boundary of water sword gap alien invasion 22.First arc section 20 and
Projection of two arc sections 21 in impact runner in the radial direction is respectively the first rectangle 23 and the second rectangle 24.First rectangle 23
The minimum length of long side 26 of the rectangle 24 of long side 3 and second be not less than 0.125 times of bucket width.The long side of first rectangle 23
3 in plane 1 on bucket, and 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 and the friendship of short side 6
Point is the upper plane 1 of bucket and cuts intersection point 5 of the water sword gap alien invasion 2 at the bucket back side.The long side 26 of second rectangle 24 is located at
On bucket in plane 1, short side 25, which is located at, to be cut on water sword gap alien invasion 22, the long side 26 of the second rectangle 24 and the intersection point of short side 25
Be bucket upper plane 1 and cut intersection point 27 of the water sword gap alien invasion 22 at the bucket back side.
The present invention has the characteristics of simple in construction easy to implement.
The cylindrical measurement structure of impulse turbine model runner is located at the non-excessively stream area at the bucket back side 4 and area very little, no
The hydraulic performance of meeting impingement hydraulic turbine model runner has a negative impact, but can be greatly enhanced impulse turbine model
The measurement accuracy of runner outside diameter.
Operation principle
A kind of cylindrical measurement structure of impulse turbine model runner disclosed by the invention, it is maximum outer in each bucket
Relative to being divided to water sword 7 symmetrical two pieces using impulse turbine model runner theory pivot as rotation on circular diameter position
Turn arc section the first arc section 20 and the second arc section 21 with enough physical dimensions that the bucket back side at center is extended.Punching
Hit rectangle the first rectangle 23 that the cylindrical measurement structure of formula hydraulic turbine model runner projects in radial directions and the second rectangle 24
Shape is identical, and the ratio between its long short side should be controlled 1.5:In the range of 1, long side minimum length is not less than the 0.125 of bucket width
Times.
, can will be for conventional punching using a kind of cylindrical measurement structure of impulse turbine model runner disclosed by the invention
Hit the survey of impulse turbine model runner outside diameter that is extremely difficult for formula hydraulic turbine model runner or even can not realizing
Amount become impingement hydraulic turbine model runner to the cylindrical measurement structure of impulse turbine model runner on bucket away from
From measurement, so as to fundamentally substantially increasing the cylindrical measurement accuracy of impulse turbine model runner.
Technique effect：
The outside diameter of impulse turbine model runner is theoretical pivot 14 of the bucket back side 4 along impact runner
The radial direction maximum gauge of the formed occluding surface of rotation.Due to the bucket back side 4 for complicated space curved surface and it is along impact type
The theoretical pivot 14 of runner rotates at the radial direction maximum gauge of formed occluding surface for plane 1 on bucket and cuts water sword
Plane 1 and water sword gap alien invasion 22 and water are cut on the intersection point 5 in 4 three faces of gap alien invasion 2 and the bucket back side and on bucket
The two points of the intersection point 27 in bucket 4 three faces in the back side, for the outside diameter measurement side of traditional impulse turbine model runner
For method, the outside diameter of impulse turbine model runner is theoretical pivot 14 of the bucket back side 4 along impact runner
The radial direction maximum gauge of the formed occluding surface of rotation is rendered as a circle, and for specific measurement, common calliper is
Distance between two points of measurement space, this is extremely difficult for survey crew and it is difficult to ensure that measurement accuracy.And adopt
With a kind of cylindrical measurement structure of impulse turbine model runner disclosed by the invention, just by impulse turbine model runner
Outside diameter measuring method is turned by the outside diameter of traditional impingement hydraulic turbine model runner for the bucket back side 4 along impact type
The circle that the radial direction maximum gauge that the theoretical pivot 14 of wheel rotates formed occluding surface is presented measures, and is promoted to pair
Formed impulse turbine model runner footpath is rotated with the theoretical pivot 14 of intersection point 5 and intersection point 27 along impact runner
Rotated to maximum gauge identical by the first arc section 20 and the second arc section 21 along the theoretical pivot 14 of impact runner
The measurement of the face of cylinder diameter formed.For measurement for impulse turbine model runner outside diameter, cylinder is measured
The diameter in face is more much smaller than the operation difficulty of distance between two points of measurement space and can ensure enough measurement accuracy.
Brief description of the drawings：
Fig. 1 is the bucket radial view of impulse turbine model runner disclosed by the invention
Fig. 2 is the bucket face view of impulse turbine model runner disclosed by the invention
Fig. 3 is that impulse turbine model runner bucket disclosed by the invention cuts water sword gap working face partial view 1
Fig. 4 is that impulse turbine model runner bucket disclosed by the invention cuts water sword gap working face partial view 2
Embodiment：
A kind of cylindrical measurement structure of impulse turbine model runner disclosed by the invention is as depicted in figs. 1 and 2, every
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, as shown in Figure 3 and Figure 4,
First arc section 20 is located at plane 1 on bucket and cut on the bucket back side 4 of the boundary of water sword gap alien invasion 2, the second arc section 21
Positioned at plane on bucket 1 and cut on the bucket back side 4 of the boundary of water sword gap alien invasion 22.First arc section 20 and the second arc section
21 projection in impact runner in the radial direction is respectively the first rectangle 23 and the second rectangle 24.The long side 3 of first rectangle 23
It is not less than 0.125 times of bucket width with the minimum length of the long side 26 of the second rectangle 24.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.
The bucket number of impulse turbine model runner is even number, is employed as rushing for bucket back side local extensions
After hitting the cylindrical measurement structure of formula hydraulic turbine model runner, the first arc section 20 of each bucket is with it to justifying to the first of bucket
Segmental arc 20 or the second arc section 21 of each bucket and its be impact type to the distance between the second arc section 21 to bucket
The outside diameter of hydraulic turbine model runner.Measure impulse turbine model runner outside diameter this in conventional impulse water wheel
The operation being difficult to carry out on machine model runner, using the cylindrical measurement structure of impulse turbine model runner disclosed by the invention
Afterwards, having reformed into only need to be to runner to being surveyed to the distance of the cylindrical measurement structure of impulse turbine model runner on bucket
Measure this conventional Geometrical Parameter Testing.Undoubtedly substantially increase the cylindrical measurement accuracy of impulse turbine model runner.
Claims (1)
1. a kind of cylindrical measurement structure of impulse turbine model runner, 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 the theoretical pivot (14) of impact runner 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)
Long side (3) and the minimum length of long side (26) of the second rectangle (24) be not less than 0.125 times of bucket width, the first rectangle
(23) long side (3) is located on bucket in plane (1), and short side (6), which is located at, to be cut on water sword gap alien invasion (2), the first rectangle
(23) intersection point of long side (3) and short side (6) is the upper plane (1) of bucket and cuts water sword gap alien invasion (2) at the bucket back side
Intersection point (5), the long side (26) of the second rectangle (24) is located on bucket in plane (1), and short side (25) is positioned at cutting outside water sword gap
On facade (22), the long side (26) of the second rectangle (24) is slitted with the intersection point of short side (25) for the upper plane (1) of bucket with cutting water sword
Intersection point (27) of the mouth alien invasion (22) at the bucket back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120798.3A CN107894197A (en) | 2017-11-14 | 2017-11-14 | The cylindrical measurement structure of impulse turbine model runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120798.3A CN107894197A (en) | 2017-11-14 | 2017-11-14 | The cylindrical measurement structure of impulse turbine model runner |
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| Publication Number | Publication Date |
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| CN107894197A true CN107894197A (en) | 2018-04-10 |
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| CN201711120798.3A Pending CN107894197A (en) | 2017-11-14 | 2017-11-14 | The cylindrical measurement structure of impulse turbine model runner |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN2612927Y (en) * | 2003-04-04 | 2004-04-21 | 合肥工业大学 | Novel rolling wheel method gauge pin arrangement |
| US20050084367A1 (en) * | 2003-02-28 | 2005-04-21 | Aggidis George A. | Turbines and in particular pelton wheel turbines |
| 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 |
| 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 |
-
2017
- 2017-11-14 CN CN201711120798.3A patent/CN107894197A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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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Application publication date: 20180410 |
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| RJ01 | Rejection of invention patent application after publication |