CN210108195U - Total length measuring tool for medium-large stator blades - Google Patents
Total length measuring tool for medium-large stator blades Download PDFInfo
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- CN210108195U CN210108195U CN201921203992.2U CN201921203992U CN210108195U CN 210108195 U CN210108195 U CN 210108195U CN 201921203992 U CN201921203992 U CN 201921203992U CN 210108195 U CN210108195 U CN 210108195U
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Abstract
A middle-large scale stator blade total length measuring tool has good universality, can reduce equipment investment cost and improve measuring efficiency, and comprises a bottom plate, wherein a large-head angle plate and a small-head angle plate, a large-head auxiliary positioning block and a small-head auxiliary positioning block, a large-head arc positioning block and a small-head arc positioning block, a large-head positioning plate and a small-head positioning plate are correspondingly arranged on the bottom plate, the large-head arc positioning block and the small-head arc positioning block are respectively clamped on the left side and the right side of the bottom plate through T-shaped block components, the large-head positioning block and the small-head positioning block are respectively clamped between the large-head arc positioning block and the small-head arc positioning block on the bottom plate, the large-head positioning block and the small-head positioning block are used for supporting blades, the inner side surfaces of the large-head angle plate and the small-head angle plate are obliquely arranged at, the big head component is movable at the top end of the big head arc positioning block, and the small head component is movable at the top end of the small head arc positioning block.
Description
Technical Field
The utility model relates to a steam turbine stator blade measuring equipment technical field specifically is a medium and large-scale stator blade overall length surveys utensil.
Background
The partition board in the steam turbine is generally a static blade, in the practical application of the steam turbine products of aviation, power generation and the like, the total length of the static blades of different models is different, the arc angles of a large head and a small head are also different, the universality of the currently commonly used measuring device for detecting the total length of the static blade is poor, one measuring tool can only be used for measuring the static blades with the same arc angle and different lengths, when the shape of the static blade is changed, particularly when the arc angles of the arc surfaces at two sides of the static blade are changed, the accurate measurement of the total length of the static blade cannot be realized by using the conventional measuring tool, so that the problem of inaccurate measured value occurs, if the measurement of the total length of the static blades of different arc surfaces is realized, another device matched with the shape of the static blade needs to be redesigned, and the mode of integrally reworking the other device not only consumes a large amount of manpower, The measurement efficiency of the large and medium-sized stator blades with different shapes is seriously influenced by the resources such as materials and the like and the long manufacturing period.
SUMMERY OF THE UTILITY MODEL
The relatively poor problem of commonality that is used for the measuring device that the total length of stator blade detected to exist among the prior art to and the mode of redesign manufacturing and this another equipment of stator blade shape assorted according to the shape of stator blade not only resource consumption is big, the input cost is high, the problem of manufacturing cycle length moreover, the utility model provides a well large-scale total length of stator blade surveys utensil, its commonality is good, applicable in the total length of the stator blade of different cross-sections detects, can avoid resources waste such as manpower materials, reduces the equipment input cost, improves measurement of efficiency.
A middle-large scale stator blade total length measuring tool comprises a bottom plate and is characterized in that a large-head angle plate and a small-head angle plate, a large-head auxiliary positioning block and a small-head auxiliary positioning block, a large-head arc positioning block and a small-head arc positioning block, a large-head positioning block and a small-head positioning block which are correspondingly arranged are arranged on the bottom plate, the large-head arc positioning block and the small-head arc positioning block are respectively clamped on the left side and the right side of the bottom plate through T-shaped block assemblies, the large-head positioning block and the small-head positioning block are respectively clamped between the large-head arc positioning block and the small-head arc positioning block on the bottom plate, the large-head positioning block and the small-head positioning block are used for supporting blades, the inner side surfaces of the large-head angle plate and the small-head angle plate are obliquely arranged at a certain inclination angle with the horizontal plane, the big head assembly is movably arranged at the top end of the big head arc positioning block, and the small head assembly is movably arranged at the top end of the small head arc positioning block.
The blade positioning device is further characterized in that the large-head angle plate is fixed at the top end of the large-head auxiliary positioning block, the small-head positioning block is fixed at the top end of the small-head auxiliary positioning block, the large-head angle plate, the large-head auxiliary positioning block and the large-head arc positioning block are sequentially arranged from top to bottom, the small-head angle plate, the small-head auxiliary positioning block and the small-head arc positioning block are sequentially arranged from top to bottom, and arc-shaped supporting surfaces consistent with the inner arc surfaces of the blades are respectively arranged at the top ends of the large-head positioning plate and the small-head positioning plate; the inclination angles of the inner side end surfaces of the large-head angle plate and the small-head angle plate are respectively consistent with the inclination angles of the end surfaces on two sides of the blade, the outer sides of the large-head arc positioning block and the small-head arc positioning block are respectively provided with arc surfaces, and the arc surfaces on the outer sides of the large-head arc positioning block and the small-head arc positioning block are respectively consistent with the arc surfaces on two sides of the blade;
three rows of parallel T-shaped through grooves are formed in the bottom plate, the three rows of the through grooves are arranged at equal intervals along the strip length direction of the bottom plate, and clamping grooves which are correspondingly arranged are formed in the end faces of the front side and the rear side of the bottom plate respectively;
the bottom ends of the large-head angle plate and the small-head angle plate are respectively provided with a positioning pin corresponding to the positioning hole on the large-head auxiliary positioning block and the small-head auxiliary positioning block, the large-head angle plate is positioned by the positioning pin and is fixed at the top end of the large-head auxiliary positioning block by an inner hexagonal bolt, the small-head angle plate is positioned by the positioning pin and is fixed at the top end of the small-head auxiliary positioning block by the inner hexagonal bolt, the bottom ends of the large-head arc positioning block and the small-head arc positioning block are respectively fixed in the through groove on the bottom plate by a positioning key, a slotted flat-head countersunk screw and a T-shaped block, the bottom ends of the front side and the rear side of the large-head positioning plate and the small-head positioning plate are respectively provided with a clamping piece corresponding to the clamping groove, and the large-head positioning plate and, the bottom ends of the opposite sides of the large head positioning plate and the small head positioning plate are respectively fixed in the through grooves on the two sides of the bottom plate through an angle ruler block and an inner hexagon bolt, and the bottom ends of the middle parts of the large head positioning plate and the small head positioning plate are pressed in the through grooves in the middle of the bottom plate through a pressing plate and the inner hexagon bolt;
the rear end faces of the large-head auxiliary positioning block and the small-head auxiliary positioning block are respectively provided with an upper pointed end and a lower pointed end which are arranged in parallel, the length of the upper pointed end is larger than that of the lower chuck, the upper pointed ends correspond to the arc surfaces of two sides of the blade respectively, the lower pointed ends correspond to the arc surfaces of the arc positioning blocks respectively, and pins are arranged at the upper ends of the large-head auxiliary positioning block and the small-head auxiliary positioning block and abut against the arc surfaces of the arc positioning blocks.
The utility model is applied to the measurement of the total length of the medium-large stator blade, because the top ends of the big end positioning plate and the small end positioning plate of the device are respectively provided with an arc supporting surface consistent with the inner arc surface of the blade, the inner side end surfaces of the big end angle plate and the small end angle plate are obliquely arranged with a certain inclination angle with the horizontal plane, the inclination angles are respectively consistent with the inclination angles of the two side end surfaces of the blade, the outer sides of the big end arc positioning block and the small end arc positioning block are respectively provided with an arc surface, and the arc surfaces of the outer sides of the big end arc positioning block and the small end arc positioning block are respectively consistent with the arc surfaces of the two sides of the blade, therefore, when the shape or the size of the arc surface of the stator blade to be measured is changed, the big end positioning plate, the small end positioning plate, the big end angle plate, the small end arc positioning block and the small end arc positioning block can be replaced by, the device is characterized in that the device comprises a base plate, a plurality of fixed blades and a plurality of fixed blades, wherein the fixed blades are arranged on the base plate, and the fixed blades are arranged on the base plate; and the big-end arc positioning block and the small-end arc positioning block in the device are respectively clamped on the bottom plate through the positioning key, the slotted flat-head countersunk head screw and the T-shaped block, and the big-end positioning plate and the small-end positioning plate are respectively clamped on the bottom plate, so that the disassembly and assembly operations of all parts are convenient, and the measurement efficiency is further improved.
Drawings
Fig. 1 is a schematic structural view of the front view of the present invention;
fig. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural view of the big-end angle plate and the small-end angle plate of the present invention;
FIG. 5 is a schematic structural view of the big-end arc positioning block and the small-end arc positioning block of the present invention;
FIG. 6 is a schematic side view of the positioning plate for large head and the positioning plate for small head of the present invention;
fig. 7 is a schematic structural view of the bottom plate of the present invention;
fig. 8 is a left side view of the bottom plate of the present invention.
Detailed Description
Referring to fig. 1 to 8, a total length measuring tool for a medium-large stator blade comprises a base plate 1, wherein three parallel rows of T-shaped through grooves 2 are arranged on the base plate 1, the three rows of through grooves 2 are arranged at equal intervals along the length direction of the base plate 1, 12 correspondingly arranged clamping grooves 3 are respectively formed on the front side end face and the rear side end face of the base plate 1, the clamping grooves 3 on the two sides are arranged in a mirror image manner by taking the transverse central line of the base plate 1 as an axis, a large head assembly and a small head assembly which are correspondingly arranged are arranged at the top end of the base plate 1, the large head assembly and the small head assembly comprise a group of correspondingly arranged angle plates 4 and a group of correspondingly arranged auxiliary positioning blocks 5, the angle plates 4 comprise large head angle plates 41 and small head angle plates 42, the auxiliary positioning blocks 5 comprise large head auxiliary positioning blocks 51 and small head auxiliary positioning blocks 52, positioning pins corresponding to positioning holes on the large head auxiliary positioning blocks 51 and the small head auxiliary positioning blocks 52 are respectively arranged, the large-head angle plate 41 is positioned by a positioning pin and fixed at the top end of a large-head auxiliary positioning block 51 by an inner hexagon bolt, the small-head angle plate 42 is positioned by the positioning pin and fixed at the top end of a small-head auxiliary positioning block 52 by an inner hexagon bolt, a pair of upper pointed end 53 and lower pointed end 54 which are arranged in parallel are arranged on the rear end faces of the large-head auxiliary positioning block 51 and the small-head auxiliary positioning block 52, the length of the upper pointed end 53 is greater than that of the lower pointed end 54, the upper pointed end 53 respectively corresponds to the arc surfaces at two sides of the blade 10, the lower pointed end 54 respectively corresponds to the arc surface of the arc positioning block 6, and the upper ends of the large-head auxiliary positioning block 51 and the small-head auxiliary positioning block 52 are provided with pins 55 which;
the bottom plate 1 is also provided with a group of arc positioning blocks 6 correspondingly arranged and a group of positioning plates 7 correspondingly arranged, the arc positioning blocks 6 comprise a large-head arc positioning block 61 and a small-head arc positioning block 62, the positioning plates 7 comprise a large-head positioning block 71 and a small-head positioning block 72, a large-head angle plate 41, a large-head auxiliary positioning block 51 and the large-head arc positioning block 61 are sequentially arranged from top to bottom, a small-head angle plate 42, a small-head auxiliary positioning block 52 and the small-head arc positioning block 62 are sequentially arranged from top to bottom, the bottom ends of the large-head arc positioning block 61 and the small-head arc positioning block 62 are respectively fixed in the through groove 2 on the bottom plate through a positioning key, a slotted flat-head countersunk screw and a T-shaped block, the large-head positioning block 71 and the small-head positioning block 72 are respectively positioned between the large-head arc positioning block 61 and the small-head arc positioning block 62 on the, the large-head positioning plate 71 and the small-head positioning plate 72 are respectively clamped in the clamping groove 3 of the bottom plate 1 through clamping pieces 73, the bottom ends of the opposite sides of the large-head positioning plate 71 and the small-head positioning plate 72 are respectively fixed in the through grooves 2 on the two sides of the bottom plate 1 through the angle ruler blocks 74 and the inner hexagon bolts, and the bottom ends of the middle parts of the large-head positioning plate 71 and the small-head positioning plate 72 are pressed in the through grooves 3 in the middle of the bottom plate 1 through the pressing plates 75 and the inner hexagon bolts; the top ends of the large head positioning plate 71 and the small head positioning plate 72 are respectively provided with an arc-shaped supporting surface consistent with the inner arc surface of the blade 10; the inner side surfaces of the large-head angle plate 41 and the small-head angle plate 42 are obliquely arranged at a certain inclination angle with the horizontal plane, the inclination angles of the inner side surfaces of the large-head angle plate 41 and the small-head angle plate 42 are respectively consistent with the inclination angles of the end surfaces of two sides of the blade 10, the bottom ends of the large-head angle plate 41 and the small-head angle plate 42 are respectively provided with a convex part 43, the inner side surface of the convex part 43 is abutted against the outer side arc surface of the arc positioning block 6, the outer sides of the large-head arc positioning block 61 and the small-head arc positioning block 62 are respectively provided with arc surfaces, the arc surfaces of the outer sides of the large-head arc positioning block 61 and the small-head arc positioning block 62 are respectively consistent with the arc surfaces of two sides of the blade 10, the large-head assembly moves at the top.
Will the utility model discloses in being applied to the measurement of large-scale stator blade overall length, specifically include following step: s1, processing and selecting a large-head positioning plate 71, a small-head positioning plate 72, a large-head angle plate 41, a small-head angle plate 42, a large-head arc positioning block 61 and a small-head arc positioning block 62, and pre-processing and selecting the large-head positioning plate 71, the small-head positioning plate 72, the large-head angle plate 41, the small-head angle plate 42, the large-head arc positioning block 61 and the small-head arc positioning block 62 which are consistent with the shape of the stationary blade 10;
s2, installing the big end positioning plate 71, the small end positioning plate 72, the big end angle plate 41, the small end angle plate 42, the big end arc positioning block 61 and the small end arc positioning block 62 selected in the step S1 on the existing bottom plate 1, and specifically comprising the following steps: s21, clamping the clamping pieces at the bottom ends of the large-head positioning plate 71 and the small-head positioning plate 72 into the clamping grooves 3 at the two ends of the bottom plate 1, fixing the clamping pieces in the through grooves 2 at the two sides of the top end of the bottom plate 1 by using the angle ruler blocks 74 and the inner hexagon bolts, and then pressing the bottom ends of the large-head positioning plate 71 and the small-head positioning plate 72 in the through groove 2 in the middle of the top end of the bottom plate 1 by using the small pressing plate and the inner hexagon bolts; s22, respectively fixing the large-head arc positioning block 61 and the small-head arc positioning block 62 on the bottom plate 1; s23, mounting the large-head assembly and the small-head assembly, aligning the positioning pins on the large-head angle plate 41 and the small-head angle plate 42 with the positioning holes on the large-head auxiliary positioning block 51 and the small-head auxiliary positioning block 52 respectively to realize positioning, fixing the large-head angle plate 41 on the top end of the large-head auxiliary positioning block 51 through an inner hexagonal bolt, and fixing the small-head angle plate 41 on the top end of the small-head auxiliary positioning block 52 through an inner hexagonal bolt; s24, placing the blade 10 on the large-end positioning plate 71 and the small-end positioning plate 72, wherein when the blade 10 is placed, the top ends of the two sides of the blade 10 respectively correspond to the top ends of the large-end angle plates 41 and the small-end angle plates 42 of the two sides, so that the positioning operation of the blade 10 is realized; s25, enabling the large-head assembly to slide on the large-head arc positioning block 61, enabling the small-head assembly to move on the small-head arc positioning block 62, enabling the convex piece 43 at the bottom end of the angle plate to always abut against the arc surface on the outer side of the arc positioning block 6 in the moving process, enabling the pin 55 on the auxiliary positioning block 5 to always abut against the arc surface on the outer side of the arc positioning block 5, manually observing the transmittance in the respective moving processes of the large-head assembly and the small-head assembly, detecting a gap between the angle plate 4 and the side end surface of the blade 10 through a feeler gauge, if the gap exceeds a machining allowance setting range, indicating that the arc degree of the outer side surface of the blade 10 does not accord with a standard, and if the gap is small and does not exceed the machining allowance;
s3, in the process that the large head assembly and the small head assembly move respectively, measuring the gap between the upper tip of the auxiliary positioning block 5 and the arc surface outside the blade through a feeler gauge, if the gap exceeds the set range of machining allowance, indicating that the length of the blade does not meet the standard, and if the gap is smaller and does not exceed the set range of machining allowance, indicating that the blade meets the standard;
the setting of draw-in groove on the bottom plate in this device, logical groove all is convenient for install, dismantle the operation to each part on its top, and the setting of locating pin, locating hole is also convenient for install and dismantle the operation to major part assistance-localization real-time piece, microcephaly assistance-localization real-time piece, when fixed to locating plate, arc locating piece, also accessible sets up locating pin, locating hole and realizes, makes the installation, dismantles easy operation swiftly to further shorten manufacturing cycle, improved measurement of efficiency.
Claims (5)
1. A middle-large scale stator blade total length measuring tool comprises a bottom plate and is characterized in that a large-head angle plate and a small-head angle plate, a large-head auxiliary positioning block and a small-head auxiliary positioning block, a large-head arc positioning block and a small-head arc positioning block, a large-head positioning block and a small-head positioning block which are correspondingly arranged are arranged on the bottom plate, the large-head arc positioning block and the small-head arc positioning block are respectively clamped on the left side and the right side of the bottom plate through T-shaped block assemblies, the large-head positioning block and the small-head positioning block are respectively clamped between the large-head arc positioning block and the small-head arc positioning block on the bottom plate, the large-head positioning block and the small-head positioning block are used for supporting blades, the inner side surfaces of the large-head angle plate and the small-head angle plate are obliquely arranged at a certain inclination angle with the horizontal plane, the big head assembly is movable at the top end of the big head arc positioning block, and the small head assembly is movable at the top end of the small head arc positioning block.
2. The tool according to claim 1, wherein the large-head angle plate is fixed to a top end of the large-head auxiliary positioning block, the small-head positioning block is fixed to a top end of the small-head auxiliary positioning block, the large-head angle plate, the large-head auxiliary positioning block and the large-head arc positioning block are sequentially arranged from top to bottom, the small-head angle plate, the small-head auxiliary positioning block and the small-head arc positioning block are sequentially arranged from top to bottom, and top ends of the large-head positioning plate and the small-head positioning plate are respectively provided with arc-shaped supporting surfaces which are consistent with inner arc surfaces of the blades; the inclination angles of the inner side end faces of the large-head angle plate and the small-head angle plate are respectively consistent with the inclination angles of the end faces of the two sides of the blade, the outer sides of the large-head arc positioning block and the small-head arc positioning block are respectively provided with an arc surface, and the arc surfaces of the outer sides of the large-head arc positioning block and the small-head arc positioning block are respectively consistent with the arc surfaces of the two sides of the blade.
3. The tool for measuring the total length of the medium-large-sized stationary blades as claimed in any one of claims 1 or 2, wherein three parallel rows of T-shaped through slots are formed in the bottom plate, the three rows of T-shaped through slots are arranged at equal intervals along the length direction of the bottom plate, and correspondingly arranged clamping slots are formed in the front side end face and the rear side end face of the bottom plate respectively.
4. The tool according to claim 3, wherein the bottom ends of the large-head angle plate and the small-head angle plate are respectively provided with positioning pins corresponding to the positioning holes of the large-head auxiliary positioning block and the small-head auxiliary positioning block, the large-head angle plate is positioned by the positioning pins and fixed to the top end of the large-head auxiliary positioning block by hexagon socket bolts, the small-head angle plate is positioned by the positioning pins and fixed to the top end of the small-head auxiliary positioning block by hexagon socket bolts, the T-shaped component comprises a positioning key, a slotted flat-head countersunk screw and a T-shaped block, the bottom ends of the large-head arc positioning block and the small-head arc positioning block are respectively fixed to the through groove on the bottom plate by the positioning key, the slotted flat-head countersunk screw and the T-shaped block, and the bottom ends of the front side and the rear side of the large-head positioning plate and the small-head positioning block are respectively provided with fasteners corresponding to the clamping grooves, the large head positioning plate and the small head positioning plate are respectively clamped in the clamping grooves of the bottom plate through the clamping pieces, the bottom ends of one sides, opposite to the large head positioning plate and the small head positioning plate, of the large head positioning plate and the small head positioning plate are respectively fixed in the through grooves on the two sides of the bottom plate through the angle ruler blocks and the hexagon socket head screws, and the bottom ends of the middle parts of the large head positioning plate and the small head positioning plate are respectively pressed in the through grooves in the middle of the bottom plate through the pressing plates and the hexagon socket head.
5. The tool for measuring the total length of the medium-large stator blade as claimed in claim 4, wherein a pair of upper and lower tips arranged in parallel are disposed on the rear end faces of the large and small auxiliary positioning blocks, the length of the upper tip is greater than that of the lower tip, the upper tips correspond to the arc faces on the two sides of the blade, the lower tips correspond to the arc faces of the arc positioning blocks, and pins are disposed on the upper ends of the large and small auxiliary positioning blocks and abut against the arc faces of the arc positioning blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203992.2U CN210108195U (en) | 2019-07-29 | 2019-07-29 | Total length measuring tool for medium-large stator blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203992.2U CN210108195U (en) | 2019-07-29 | 2019-07-29 | Total length measuring tool for medium-large stator blades |
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| Publication Number | Publication Date |
|---|---|
| CN210108195U true CN210108195U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921203992.2U Active CN210108195U (en) | 2019-07-29 | 2019-07-29 | Total length measuring tool for medium-large stator blades |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360910A (en) * | 2019-07-29 | 2019-10-22 | 无锡市艾尔福叶片有限公司 | Medium-and-large-sized stator blade overall length measuring tool and its measurement method |
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2019
- 2019-07-29 CN CN201921203992.2U patent/CN210108195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360910A (en) * | 2019-07-29 | 2019-10-22 | 无锡市艾尔福叶片有限公司 | Medium-and-large-sized stator blade overall length measuring tool and its measurement method |
| CN110360910B (en) * | 2019-07-29 | 2024-05-10 | 无锡市艾尔福叶片有限公司 | Medium-and-large-sized stator blade total length measuring tool and measuring method thereof |
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