CN111121581B - Quadruple guide blade measuring device - Google Patents
Quadruple guide blade measuring device Download PDFInfo
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- CN111121581B CN111121581B CN201911318579.5A CN201911318579A CN111121581B CN 111121581 B CN111121581 B CN 111121581B CN 201911318579 A CN201911318579 A CN 201911318579A CN 111121581 B CN111121581 B CN 111121581B
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- edge plate
- positioning
- guide vane
- arc
- locating piece
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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
- G01B5/003—Measuring of motor parts
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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
-
- 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
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
Abstract
The invention provides a four-link guide blade measuring device which comprises a bottom plate, a large edge plate positioning block, a small edge plate positioning block, a six-point positioning mechanism and a four-link guide blade throat size measuring mechanism, wherein the large edge plate positioning block and the small edge plate positioning block are fixedly arranged on the surface of the bottom plate, the large edge plate and the small edge plate of the four-link guide blade are limited by the large edge plate positioning block and the small edge plate positioning block, and the six-point positioning mechanism is arranged on the surface of the bottom plate and is positioned between the large edge plate positioning block and the small edge plate positioning block; the size measuring mechanism for the throat part of the four-link guide blade comprises three groups of measuring assemblies arranged on a bottom plate side by side, each group of measuring assemblies comprises an arc-shaped slide way, a connecting bolt, a slide block, a connecting nut and a conical feeler gauge, two ends of each arc-shaped slide way are supported by a supporting block, the connecting bolts sequentially penetrate through the slide block and the arc-shaped slide ways and then are connected with the connecting nuts, and the conical feeler gauge is arranged at the tail end of the connecting bolt. The invention can simplify the measuring steps and is convenient for workers to operate; the stability and the precision of measurement are improved.
Description
Technical Field
The invention belongs to the technical field of guide vane measurement, and particularly relates to a four-way guide vane measuring device.
Background
The guide vane is used as a part which has the largest influence on the bearing of the engine in the use process and plays a role in guiding airflow and changing the speed, direction and pressure of the airflow. Usually, both ends are inserted into the matching rings, the whole-ring guider is formed by a welding forming method, and the requirement on the dimensional accuracy of the large and small edge plates on both sides is high in the installation process. The throat area is also an important index which needs to be measured in the installation process, the size of the throat part is a core parameter for calculating the throat area, the actual working efficiency of the gas turbine is directly influenced by the size of the throat part, and the integral performance of the gas turbine engine is decisive. The throat area measuring method is characterized in that the throat area is calculated and obtained through a calculation formula by measuring the minimum width size of a minimum interface between blades. When the quadruple blade is measured, the measurement measuring tool usually needs to determine the position of the minimum section for many times, and the clearance gauge and the gauge need to be matched for many times, so that the determination of the measurement position is difficult to keep consistent, and the measurement method is complex and lacks of consistency.
Disclosure of Invention
In view of this, the invention aims to provide a quadruple guide vane measuring device, which can simplify the measuring steps and facilitate the operation of workers; the stability and the precision of measurement are improved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a quadruple guide vane measuring device comprises a bottom plate, a large edge plate positioning block, a small edge plate positioning block, a six-point positioning mechanism and a quadruple guide vane throat size measuring mechanism, wherein the large edge plate positioning block and the small edge plate positioning block are fixedly arranged on the front side and the rear side of the surface of the bottom plate respectively, the large edge plate of the quadruple guide vane is limited by the large edge plate positioning block, the small edge plate of the quadruple guide vane is limited by the small edge plate positioning block, and the six-point positioning mechanism is arranged on the surface of the bottom plate and is positioned between the large edge plate positioning block and the small edge plate positioning block;
the six-point positioning mechanism comprises three A1 point positioning components, an A2 point positioning component and an A3 point positioning component which are used for respectively positioning the front edge of the four-linked guide vane, two B4 point positioning components and two B5 point positioning components which are used for respectively positioning the back surface of the reference circular arc surface of the four-linked guide vane, and one C6 point positioning component which is used for positioning the vane back of the four-linked guide vane, wherein the positioning position of each positioning component is set according to positioning points A1, A2, A3, B4, B5 and C6 which are determined by a design drawing of the four-linked guide vane;
the throat size measuring mechanism of the four-link guide blade comprises three groups of measuring components which are arranged on a bottom plate side by side, each group of measuring components comprises an arc-shaped slideway, a connecting bolt, a sliding block, a connecting nut and a conical feeler gauge, two ends of the arc-shaped slideway are respectively supported by a supporting block, the connecting bolt sequentially penetrates through the sliding block and the arc-shaped slideway and then is connected with the connecting nut, the conical feeler gauge is arranged at the tail end of the connecting bolt, and the throat position of the four-link guide blade is adjusted to stretch into the throat position of the four-link guide blade to measure the size of the corresponding throat position;
the lengths of the three arc-shaped slideways are gradually reduced from the large edge plate positioning block to the small edge plate positioning block.
Further, big flange locating piece includes big flange left side locating piece and big flange right side locating piece, little flange locating piece includes little flange left side locating piece, little flange middle part locating piece and little flange right side locating piece, and four ally oneself with guide blade's big flange is spacing between big flange left side locating piece and big flange right side locating piece, and four ally oneself with guide blade's little flange is spacing between little flange left side locating piece, little flange middle part locating piece and little flange right side locating piece.
Further, measuring device still includes big listrium radian survey utensil and little listrium radian survey utensil, big listrium radian survey utensil install on big listrium left side locating piece and big listrium right side locating piece through the slotted hole of the left and right sides, little listrium radian survey utensil install on little listrium left side locating piece and little listrium right side locating piece through the slotted hole of the left and right sides.
Furthermore, one of the three arc-shaped slideways is arranged close to the large edge plate of the four-linked guide blade, and the other arc-shaped slideway is arranged close to the small edge plate of the four-linked guide blade; the middle arc-shaped slide way is arranged at the middle position of the four-linked guide vane.
Furthermore, the radians of the three arc-shaped slideways are respectively consistent with the radian trend of the four-linked guide vanes at the corresponding positions.
Furthermore, the supporting block supported at the left end of each arc-shaped slideway is a head fixing block, and the supporting block supported at the right end of each arc-shaped slideway is a tail fixing block.
Furthermore, the left ends of the three arc-shaped slideways are connected with the corresponding head fixing blocks through a pin shaft, and the three arc-shaped slideways are arranged around the respective head fixing blocks in a rotating mode.
Further, the point a1 positioning member, the point a2 positioning member, the point A3 positioning member, the point B4 positioning member, the point B5 positioning member and the point C6 positioning member are ball positioning members positioned by a spherical effect.
Further, the ball positioning member includes a support member fixed to the base plate and a ball member vertically fixed to the support member.
Furthermore, a plurality of bottom plate supporting seats are uniformly arranged at the bottom of the bottom plate.
Compared with the prior art, the quadruple guide vane measuring device has the following advantages:
the quadruple guide blade measuring device can meet the requirement of measuring the size of the continuous throat part of the minimum cross section of a plurality of parts on the quadruple blade in the horizontal direction; measuring the integral size of the large flange plate and the small flange plate; the six-point positioning device designed based on the six-point positioning principle can realize the unification of measurement and processing reference; the measuring steps can be simplified, and the operation of workers is convenient; the stability and the precision of measurement are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a quadruple guide vane measuring device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a measuring device with four guide vanes to be detected;
FIG. 3 is a schematic perspective view of a throat dimension measuring mechanism of a four-way guide vane;
FIG. 4 is a schematic structural view of a quad guide vane to be detected;
FIG. 5 is a schematic structural view of a large flange radian measuring tool;
FIG. 6 is a schematic view of a radian measuring tool for a small edge plate;
FIG. 7 is a schematic view of a six point positioning mechanism;
FIG. 8 is a schematic diagram of a throat width of a four-link guide vane measured by a conical feeler gauge.
Description of the reference numerals:
1-bottom plate, 2-small edge plate left side positioning block, 3-positioning pin, 4-mounting threaded hole, 5-bottom plate support base, 6-small edge plate middle positioning block, 7-mounting bolt, 8-small edge plate radian measuring tool, 9-small edge plate right side positioning block, 10-small edge plate radian measuring tool mounting bolt, 11-conical feeler gauge, 12-connecting nut, 13-slider, 14-connecting bolt, 15-third arc slideway, 16-second arc slideway, 17-tail fixing block, 18-first arc slideway, 19-large edge plate radian measuring tool mounting bolt, 20-large edge plate right side positioning block, 21-quadruple guide vane, 22-large edge plate radian measuring tool, 23-large edge plate left side positioning block, 24-pin shaft, 25-head fixing block, 26-A1 point positioning component, 27-A2 point positioning component, 28-A3 point positioning component, 29-B4 point positioning component, 30-B5 point positioning component and 31-C6 point positioning component.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-7, a quadruple guide vane measuring device comprises a bottom plate 1, a large edge plate positioning block, a small edge plate positioning block, a six-point positioning mechanism and a quadruple guide vane throat size measuring mechanism, wherein the large edge plate positioning block and the small edge plate positioning block are respectively fixedly arranged on the front side and the rear side of the surface of the bottom plate 1, the large edge plate of the quadruple guide vane 21 is limited by the large edge plate positioning block, the small edge plate of the quadruple guide vane 21 is limited by the small edge plate positioning block, and the six-point positioning mechanism is arranged on the surface of the bottom plate 1 and is positioned between the large edge plate positioning block and the small edge plate positioning block;
the six-point positioning mechanism comprises three A1 point positioning components 26, an A2 point positioning component 27 and an A3 point positioning component 28 which are used for positioning the front edge of the four-linked guide vane respectively, two B4 point positioning components 29 and a B5 point positioning component 30 which are used for positioning the back surface of the reference circular arc surface of the four-linked guide vane respectively, and one C6 point positioning component 31 which is used for positioning the vane back of the four-linked guide vane, wherein the positioning position of each positioning component is set according to positioning points A1, A2, A3, B4, B5 and C6 which are determined by a design drawing of the four-linked guide vane 21;
the throat size measuring mechanism of the four-link guide blade comprises three groups of measuring components which are arranged on a bottom plate 1 side by side, each group of measuring components comprises an arc-shaped slideway, a connecting bolt 14, a sliding block 13, a connecting nut 12 and a conical clearance gauge 11, two ends of each arc-shaped slideway are supported by a supporting block, the connecting bolt 14 sequentially penetrates through the sliding block 13 and the arc-shaped slideway and then is connected with the connecting nut 12, and the conical clearance gauge 11 is arranged at the tail end of the connecting bolt 14; when the test is not carried out, the conical feeler 11 is arranged above the four-way guide vane 11, and when the test is carried out, the size of the corresponding throat part is measured by adjusting the throat part of the conical feeler 11 extending into the four-way guide vane;
the lengths of the three arc-shaped slideways are gradually reduced from the large edge plate positioning block to the small edge plate positioning block.
Big listrium locating piece includes big listrium left side locating piece 23 and big listrium right side locating piece 20, little listrium locating piece includes little listrium left side locating piece 2, little listrium middle part locating piece 6 and little listrium right side locating piece 9, and the big listrium of four-link guide vane 21 is spacing between big listrium left side locating piece 23 and big listrium right side locating piece 20, and the little listrium of four-link guide vane 21 is spacing between little listrium left side locating piece 2, little listrium middle part locating piece 6 and little listrium right side locating piece 9.
Measuring device still surveys utensil 22 and little listrium radian and surveys utensil 8 including big listrium radian, big listrium radian survey utensil 22 install on big listrium left side locating piece 23 and big listrium right side locating piece 20 through the slotted hole of the left and right sides, little listrium radian survey utensil 8 and install on little listrium left side locating piece 2 and little listrium right side locating piece 9 through the slotted hole of the left and right sides. The detection of the small edge plate and the large edge plate of the four-linked guide blade is realized through the large edge plate radian measuring tool 22 and the small edge plate radian measuring tool 8.
The three arc-shaped slideways are respectively a first arc-shaped slideway 18, a second arc-shaped slideway 16 and a third arc-shaped slideway 15, the first arc-shaped slideway 18 is arranged close to a large edge plate of the quadruple guide blade 21 to be detected, and the third arc-shaped slideway 15 is arranged close to a small edge plate of the quadruple guide blade 21 to be detected; the second arc-shaped slideway 16 is arranged in the middle of the to-be-detected four-linked guide blade 21; the radian of the first arc-shaped slideway 18, the second arc-shaped slideway 16 and the third arc-shaped slideway 15 are respectively consistent with the radian trend of the four-linked guide vane 21 at the corresponding positions.
The supporting block supported at the left end of each arc-shaped slideway is a head fixing block 25, and the supporting block supported at the right end of each arc-shaped slideway is a tail fixing block 17. The left ends of the three arc-shaped slideways are connected with the corresponding head fixing blocks 25 through a pin shaft 24, and the three arc-shaped slideways are rotatably arranged around the respective head fixing blocks 25.
The positioning members 26 and 27 of the points A1 and 2, the positioning members 28 and 28 of the points A3 and B4, the positioning members 30 and 31 of the points B5 and C6 are ball positioning members positioned by spherical action. The ball positioning member comprises a supporting piece fixed on the bottom plate 1 and a ball member vertically fixed on the supporting piece.
A plurality of bottom plate supporting seats 5 are uniformly arranged at the bottom of the bottom plate 1. The conical feeler gauge 11 is a conical aperture gauge, scale marks are arranged on the surface of a conical frustum, the conical feeler gauge 11 is plugged into a throat part between two adjacent blades, the width dimension of the throat part is measured, and core parameters are provided for calculating the throat area.
The invention provides a method for measuring the widths of a small flange plate, a large flange plate and a blade section throat of a turbine four-way guide blade by using a measuring device, which comprises the following steps:
step S1, mounting the bottom plate supporting seat 5 on the bottom plate 1 through the mounting threaded hole 4; installing a small flange left side positioning block 2, a small flange middle positioning block 6, a small flange right side positioning block 9, a large flange right side positioning block 20, a large flange left side positioning block 23 and a six-point positioning mechanism designed based on a six-point positioning principle on a bottom plate 1 through an installation bolt 7 and a positioning pin 3;
step S2, placing the quadruple guide vane to be tested at a specified position to be tested through a six-point positioning device, a small edge plate left side positioning block 2, a small edge plate middle positioning block 6, a small edge plate right side positioning block 9, a large edge plate right side positioning block 20 and a large edge plate left side positioning block 23 which are designed based on a six-point positioning principle;
step S3, mounting the small edge plate radian measuring tool 8 on the small edge plate left side positioning block 2 and the small edge plate right side positioning block 9 through the small edge plate radian measuring tool mounting bolt 10, measuring the position of the small edge plate to be detected of the blade by the small edge plate radian measuring tool 8, wherein the small edge plate radian measuring tool 8 is a profiling measuring tool of the small edge plate, and judging whether the small edge plate to be detected meets the requirements or not;
step S4, mounting the large flange radian measuring tool 22 on the large flange right side positioning block 2 and the large flange left side positioning block 23 through the large flange radian measuring tool mounting bolt 19, measuring the position of the large flange to be detected of the blade by the large flange radian measuring tool 22, wherein the large flange radian measuring tool 22 is a profiling measuring tool of the large flange, and judging whether the large flange to be detected meets the requirements or not;
step S5, connecting a third arc-shaped slide way 15, a second arc-shaped slide way 16, a tail fixing block 17 and a first arc-shaped slide way 18 to the prefabricating position of the bottom plate 1 through a pin shaft 24 and a head fixing block 25; connecting a conical feeler gauge 11 and a sliding block 13 through a screw cap 12 and connecting the conical feeler gauge and the sliding block to the corresponding arc-shaped slide way position;
step S6, sliding the connecting bolt 14 to a corresponding measuring position through an arc-shaped slide way; stretch into the section position that awaits measuring through circular cone clearance gauge 11 and measure, the reading and record corresponding position data, as shown in fig. 8, specifically be: firstly, sliding the connecting bolt 14 to the left side of the arc-shaped slideway, extending the connecting bolt into a gap between the leftmost blade and the blade adjacent to the leftmost blade through the conical feeler gauge 11, measuring the width of the section of the gap, changing the position of the connecting bolt 14 in the corresponding arc-shaped slideway, sequentially measuring the width sizes of three groups of 9 sections to be measured of the four-linked guide blade, averaging three data of the widths of the gaps of two adjacent blades, and comparing the average values of the three groups to obtain the minimum value of the widths of the gaps of the adjacent blades, thereby providing core parameters for the calculation of the throat area of the four-linked guide blade.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. A quadruple guide vane measuring device is characterized in that: the large edge plate positioning block and the small edge plate positioning block are fixedly arranged on the front side and the rear side of the plate surface of the bottom plate (1) respectively, the large edge plate of the four-linked guide blade (21) is limited through the large edge plate positioning block, the small edge plate of the four-linked guide blade (21) is limited through the small edge plate positioning block, and the six-point positioning mechanism is arranged on the plate surface of the bottom plate (1) and is positioned between the large edge plate positioning block and the small edge plate positioning block;
the six-point positioning mechanism comprises three A1 point positioning components (26), an A2 point positioning component (27) and an A3 point positioning component (28) which are used for respectively positioning the front edge of the four-linked guide vane, two B4 point positioning components (29) and a B5 point positioning component (30) which are used for respectively positioning the back surface of a reference circular arc surface of the four-linked guide vane, and a C6 point positioning component (31) which is used for positioning the vane back of the four-linked guide vane, wherein the positioning position of each positioning component is set according to A1, A2, A3, B4, B5 and C6 which are determined by a design drawing of the four-linked guide vane (21);
the throat size measuring mechanism of the four-link guide blade comprises three groups of measuring components which are arranged on a bottom plate (1) side by side, each group of measuring components comprises an arc-shaped slide way, a connecting bolt (14), a slide block (13), a connecting nut (12) and a conical feeler gauge (11), two ends of each arc-shaped slide way are respectively supported by a supporting block, the connecting bolt (14) sequentially penetrates through the slide block (13) and the arc-shaped slide way and then is connected with the connecting nut (12), the conical feeler gauge (11) is arranged at the tail end of the connecting bolt (14), and the throat part of the four-link guide blade (21) is adjusted to stretch into the throat part to measure the size of the corresponding throat part;
the lengths of the three arc-shaped slideways are gradually reduced from the large edge plate positioning block to the small edge plate positioning block.
2. A four-way guide vane measuring device according to claim 1, wherein: big flange locating piece includes big flange left side locating piece (23) and big flange right side locating piece (20), little flange locating piece includes little flange left side locating piece (2), little flange middle part locating piece (6) and little flange right side locating piece (9), the big flange of four ally oneself with guide vane (21) is spacing between big flange left side locating piece (23) and big flange right side locating piece (20), the little flange of four ally oneself with guide vane (21) is spacing between little flange left side locating piece (2), little flange middle part locating piece (6) and little flange right side locating piece (9).
3. A four-in-guide vane measuring device as set forth in claim 2, wherein: measuring device still surveys utensil (22) and little listrium radian and surveys utensil (8) including big listrium radian, big listrium radian survey utensil (22) install on big listrium left side locating piece (23) and big listrium right side locating piece (20) through the slotted hole of the left and right sides, little listrium radian survey utensil (8) and install on little listrium left side locating piece (2) and little listrium right side locating piece (9) through the slotted hole of the left and right sides.
4. A four-in-one guide vane measuring device as set forth in claim 1, wherein: one of the three arc-shaped slideways is arranged close to a large edge plate of the four-linked guide vane (21), and the other arc-shaped slideway is arranged close to a small edge plate of the four-linked guide vane (21); the middle arc-shaped slideway is arranged at the middle position of the four-linked guide vane (21).
5. The quad guide vane measuring device of claim 4, wherein: the radian of the three arc-shaped slideways is consistent with the radian trend of the four-linked guide vanes (21) at the corresponding positions.
6. A four-in-one guide vane measuring device as set forth in claim 1, wherein: the supporting block that supports at every arc slide left end is head fixed block (25), and the supporting block that supports at every arc slide right end is afterbody fixed block (17).
7. The quad guide vane measuring device of claim 6, wherein: the left ends of the three arc-shaped slideways are connected with the corresponding head fixing blocks (25) through a pin shaft (24), and the three arc-shaped slideways are rotatably arranged around the respective head fixing blocks (25).
8. A four-way guide vane measuring device according to claim 1, wherein: the point A1 positioning component (26), the point A2 positioning component (27), the point A3 positioning component (28), the point B4 positioning component (29), the point B5 positioning component (30) and the point C6 positioning component (31) are ball positioning components positioned by spherical action.
9. A four-in-one guide vane measuring device as set forth in claim 8, wherein: the ball head positioning component comprises a supporting piece fixed on the bottom plate (1) and a ball head component vertically fixed on the supporting piece.
10. A four-in-one guide vane measuring device as claimed in any one of claims 1 to 9, wherein: a plurality of bottom plate supporting seats (5) are uniformly arranged at the bottom of the bottom plate (1).
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| CN201911318579.5A CN111121581B (en) | 2019-12-19 | 2019-12-19 | Quadruple guide blade measuring device |
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| CN201911318579.5A CN111121581B (en) | 2019-12-19 | 2019-12-19 | Quadruple guide blade measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112815802B (en) * | 2020-12-29 | 2023-12-12 | 航天海鹰(哈尔滨)钛业有限公司 | Power turbine air sealing measuring device and measuring method |
| CN114234772A (en) * | 2022-01-27 | 2022-03-25 | 中国航发贵州黎阳航空动力有限公司 | Device for measuring blade interval of guide ring |
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