CN219747673U - Adjustable blade locating plate - Google Patents
Adjustable blade locating plate Download PDFInfo
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- CN219747673U CN219747673U CN202320987958.9U CN202320987958U CN219747673U CN 219747673 U CN219747673 U CN 219747673U CN 202320987958 U CN202320987958 U CN 202320987958U CN 219747673 U CN219747673 U CN 219747673U
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- positioning
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- 238000005259 measurement Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides an adjustable blade positioning plate, which comprises a bottom plate and a measuring plate, wherein the bottom plate is rotationally connected to the measuring plate, at least one group of positioning rollers for positioning a steam turbine rotor are arranged on the bottom plate, and a locking piece for locking the bottom plate on the measuring plate is also arranged on the bottom plate; the utility model has the advantages of simple structure, convenient use and adjustable universal blade positioning plate to realize accurate positioning of the blade.
Description
Technical Field
The utility model relates to the technical field of blade assembly of steam turbines, gas turbines, compressors and the like, in particular to an adjustable blade positioning plate.
Background
In the process of assembling blades of a steam turbine, a gas turbine, a compressor and the like, a radiation line template is generally required to be adopted to measure whether deviation exists in the radiation line of the assembled blades; the existing radiation template is usually fixed and cannot be used universally, and corresponding tools are required for various leaf shapes, so that the manufacturing and storage costs are high; and along with the development of blade profile design, the radial line of most blades is a virtual line, has the problem that measurement cannot be carried out and measurement is inaccurate, and even if the angle of the blade real object assembly surface is obtained through theoretical radial line calculation and conversion, the problems that calculation is complicated and inaccurate, the corresponding template is complex to manufacture, the non-universal and the like still exist, and the deviation of the radial line of the blades is directly related to the change of the through-flow parameters, so that the operation parameters of a unit are influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the adjustable blade positioning plate which has the advantages of simple structure, convenient use and adjustable and universal blade positioning plate, thereby realizing accurate positioning of the blade.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an adjustable blade locating plate, includes bottom plate and measuring board, the bottom plate is rotationally connected on measuring board, be equipped with at least one set of positioning roller that is used for the location steam turbine rotor on the bottom plate, still be equipped with the retaining member that is used for locking the bottom plate on measuring board on the bottom plate.
Further, the measuring plate is provided with a connecting hole, the bottom plate is provided with a kidney-shaped hole, the connecting hole is communicated with the kidney-shaped hole, the locking piece sequentially penetrates through the kidney-shaped hole and the connecting hole, and when the bottom plate rotates, the locking piece is always positioned in the kidney-shaped hole.
Further, a first scale mark taking a rotating point of the bottom plate on the measuring plate as a circle center is arranged on the bottom plate, and a second scale mark concentric with the first scale mark is arranged on the measuring plate.
Further, the kidney-shaped hole is arc-shaped, and the center of the circle of the kidney-shaped hole is the rotation point of the bottom plate on the measuring plate.
Further, one end of the bottom plate far away from the rotation point extends out of the measuring plate, and the two sets of positioning rollers are respectively positioned at the rotation point and the extending end of the bottom plate.
Further, one end of the measuring plate, which is close to the rotating point of the bottom plate, is provided with a vertical measuring edge.
Further, the locking piece comprises a locking bolt and a locking nut, the locking bolt sequentially penetrates through the kidney-shaped hole and the connecting hole, and the locking nut is in threaded connection with the locking bolt exposed out of the bottom plate.
The utility model has the beneficial effects that: the adjustable blade locating plate is simple to operate, accurate in locating and measuring, wide in application range, capable of being used for locating and measuring various stationary blades and moving blades only by adjusting the length of the locating roller, and meanwhile, the locating template can be used for rapidly judging whether the radial assembly surface of the blade is qualified or not, and is simple and convenient to measure by avoiding adopting a machine tool or three coordinates.
Drawings
FIG. 1 is an overall block diagram of the present utility model;
FIG. 2 is a block diagram of a base plate in accordance with the present utility model;
FIG. 3 is a block diagram of a measurement plate according to the present utility model;
FIG. 4 is a schematic view of the positioning of the blades in example 1;
FIG. 5 is a schematic view showing an inspection of the left and right radial fitting surfaces of the blade in example 2;
FIG. 6 is a schematic view showing the measurement of the edge overlapping of the left and right positioning templates of the blade in example 2.
Reference numerals: 1. a bottom plate; 2. a measuring plate; 3. positioning rollers; 4. a blade; 41. a blade radial mounting surface; 5. a connection hole; 6. waist-shaped holes; 7. a first scale line; 8. a second graduation mark; 9. measuring edges; 10. a locking bolt; 11. a lock nut; 12. a rotor; 13 blade root slots on the rotor or the carrier ring.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1:
because the existing radiation template is usually fixed and cannot be used universally, corresponding tools are required for various leaf shapes, and the manufacturing and storage costs are high; along with the development of blade profile design, most of radial lines of the blades 4 are virtual lines, the problems of incapability of measuring and inaccuracy in measurement exist, and even if the angle of the real object assembly surface of the blades 4 is obtained through theoretical radial line calculation and conversion, the problems of complicated calculation, inaccuracy, complex and non-universal corresponding template manufacture and the like exist, and the deviation of the radial lines of the blades directly relates to the change of through-flow parameters, so that the operation parameters of a unit are influenced; therefore, the utility model designs the adjustable blade positioning plate, as shown in figure 1, which comprises a bottom plate 1 and a measuring plate 2, wherein the bottom plate 1 is rotationally connected to the measuring plate 2 (the shaft holes on the bottom plate 1 and the measuring plate 2 are in small clearance fit with the shaft, so that good coaxiality is ensured when the bottom plate 1 and the measuring plate 2 rotate mutually), at least one group of positioning rollers 3 for positioning the steam turbine rotor 12 are arranged on the bottom plate 1, and locking pieces for locking the bottom plate 1 on the measuring plate 2 are also arranged on the bottom plate 1.
As shown in fig. 2, a connecting hole 5 is formed in the measuring plate 2, as shown in fig. 3, a kidney-shaped hole 6 is formed in the bottom plate 1, the kidney-shaped hole 6 is arc-shaped, the center of the kidney-shaped hole 6 is the rotating point of the bottom plate 1 on the measuring plate 2, the connecting hole 5 is communicated with the kidney-shaped hole 6, a locking piece sequentially penetrates through the kidney-shaped hole 6 and the connecting hole 5, when the bottom plate 1 rotates, the locking piece is always located in the kidney-shaped hole 6, the locking piece comprises a locking bolt 10 and a locking nut 11, the locking bolt 10 sequentially penetrates through the kidney-shaped hole 6 and the connecting hole 5, the locking nut 11 is in threaded connection with the locking bolt 10 exposed out of the bottom plate 1, the theoretical installation angle between the measuring plate 2 and the radial assembly surface 41 of a blade can be consistent by adjusting the included angle between the measuring plate 2 and the bottom plate 1, the locking bolt 10 and the locking nut 11 are fastened to prevent the included angle from changing, and when the bottom plate 1 is required to be rotated, the locking nut 11 is always located in the arc-shaped kidney-shaped hole 6, and the locking bolt 10 can be considered to be rotated in the arc-shaped kidney-shaped hole 6.
As shown in fig. 1, a vertical measuring edge 9 is arranged at one end of the measuring plate 2 near to the rotation point of the bottom plate 1, the measuring edge 9 is relatively long and is mainly attached to the blade 4, as shown in fig. 2 and 3, a first scale line 7 taking the rotation point of the bottom plate 1 on the measuring plate 2 as the center of a circle is arranged on the bottom plate 1, a second scale line 8 concentric with the first scale line 7 is arranged on the measuring plate 2, and the angle between the measuring plate 2 and the bottom plate 1 is set or read through the scale on the measuring plate.
As shown in fig. 4, one end of the base plate 1 far away from the rotation point extends out of the measuring plate 2, two sets of positioning rollers 3 are respectively positioned at the rotation point and the extending end of the base plate 1, the radial positions of the templates are positioned by tangential of the outer circles of the two positioning rollers 3 and the rotor (or holding ring, etc.) circle, the templates are slid in the circumferential direction, whether the measuring edge 9 is attached to the radial assembly surface 41 of the blade is checked, whether the blade is installed in place can be determined, and the installation angle of the blade can be adjusted in time.
Example 2:
as shown in fig. 5, by adjusting the mounting position, two symmetrical positioning plates are formed, the angle of the left and right radial positioning surfaces of the blade is measured, and as shown in fig. 6, the sample plate is slid in the circumferential direction, and whether the radial mounting surface of the blade is qualified or not is determined by observing whether the measuring edges 9 of the left and right sample plates are attached or not, and whether deformation exists or not is determined.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (7)
1. An adjustable blade locating plate which is characterized in that: the steam turbine rotor positioning device comprises a base plate (1) and a measuring plate (2), wherein the base plate (1) is rotationally connected to the measuring plate (2), at least one group of positioning rollers (3) for positioning the steam turbine rotor (12) are arranged on the base plate (1), and locking pieces for locking the base plate (1) on the measuring plate (2) are further arranged on the base plate (1).
2. An adjustable vane positioning plate as defined in claim 1, wherein: the measuring plate (2) is provided with a connecting hole (5), the bottom plate (1) is provided with a kidney-shaped hole (6), the connecting hole (5) is communicated with the kidney-shaped hole (6), and the locking piece sequentially penetrates through the kidney-shaped hole (6) and the connecting hole (5) and is always located in the kidney-shaped hole (6) when the bottom plate (1) rotates.
3. An adjustable vane positioning plate as defined in claim 2, wherein: the measuring device is characterized in that a first scale line (7) taking a rotating point of the base plate (1) on the measuring plate (2) as a circle center is arranged on the base plate (1), and a second scale line (8) concentric with the first scale line (7) is arranged on the measuring plate (2).
4. An adjustable vane positioning plate as claimed in claim 3, wherein: the waist-shaped hole (6) is arc-shaped, and the center of the waist-shaped hole (6) is the rotation point of the bottom plate (1) on the measuring plate (2).
5. An adjustable vane positioning plate as claimed in claim 1 or 3, wherein: one end of the bottom plate (1) far away from the rotation point extends out of the measuring plate (2), and the two groups of positioning rollers (3) are respectively positioned at the rotation point and the extension end of the bottom plate (1).
6. An adjustable vane positioning plate as defined in claim 5, wherein: one end of the measuring plate (2) close to the rotating point of the bottom plate (1) is provided with a vertical measuring edge (9).
7. An adjustable vane positioning plate as defined in claim 6, wherein: the locking piece comprises a locking bolt (10) and a locking nut (11), wherein the locking bolt (10) sequentially penetrates through the kidney-shaped hole (6) and the connecting hole (5), and the locking nut (11) is in threaded connection with the locking bolt (10) exposed out of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320987958.9U CN219747673U (en) | 2023-04-26 | 2023-04-26 | Adjustable blade locating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320987958.9U CN219747673U (en) | 2023-04-26 | 2023-04-26 | Adjustable blade locating plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219747673U true CN219747673U (en) | 2023-09-26 |
Family
ID=88091067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320987958.9U Active CN219747673U (en) | 2023-04-26 | 2023-04-26 | Adjustable blade locating plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219747673U (en) |
-
2023
- 2023-04-26 CN CN202320987958.9U patent/CN219747673U/en active Active
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