CN210108232U - Blade shroud pitch detection measuring tool - Google Patents
Blade shroud pitch detection measuring tool Download PDFInfo
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- CN210108232U CN210108232U CN201921211985.7U CN201921211985U CN210108232U CN 210108232 U CN210108232 U CN 210108232U CN 201921211985 U CN201921211985 U CN 201921211985U CN 210108232 U CN210108232 U CN 210108232U
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- pitch
- measuring
- blade shroud
- side wall
- blade
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Abstract
The utility model discloses a blade shroud pitch measuring tool, it includes terminal surface locating plate, measures high piece and pitch measurement board such as, wherein, measure high piece set up in between terminal surface locating plate and the pitch measurement board, and as an organic whole with three fixed connection through set screw, be provided with on the pitch measurement board and be used for carrying out the measuring hole to blade shroud pitch, the bottom opening of measuring hole, just one side of measuring hole is as the reference surface, is fixed with in the opposite side and is used for the tight subassembly in top on the reference surface in one side top of blade shroud. The blade shroud pitch detection measuring tool limits one end and one side of a blade shroud through the pitch measuring plate to be used as a reference surface, and the other side of the blade shroud pitch detection measuring tool detects whether the blade shroud meets the technological requirements through the feeler gauge. Not only the structure is simple, but also the design is ingenious; and the method is convenient to operate, improves the detection efficiency of the blade shroud pitch and reduces the detection error.
Description
Technical Field
The utility model belongs to the blade detects the technique, especially relates to a blade shroud pitch measuring tool.
Background
The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously, the rotor does work outwards. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.
The blade is one of important parts of a steam turbine, the pitch of a blade shroud needs to be detected when the existing steam turbine blade is produced, and particularly when the pitch of the blade shroud of some special blades is detected, the blade shroud pitch detection efficiency is low and the detection error is large due to the fact that a datum plane cannot be determined and direct detection cannot be carried out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blade shroud pitch detects measuring tool to solve among the prior art blade shroud pitch and detect the problem that has detection efficiency low and detection error is big.
To achieve the purpose, the utility model adopts the following technical proposal:
the blade shroud pitch measuring tool comprises an end face positioning plate, a measuring equal-height block and a pitch measuring plate, wherein the measuring equal-height block is arranged between the end face positioning plate and the pitch measuring plate and fixedly connected with the end face positioning plate and the pitch measuring plate into a whole through a fixing screw, a measuring hole used for measuring the pitch of a blade shroud is formed in the pitch measuring plate, the bottom of the measuring hole is open, one side of the measuring hole serves as a datum plane, and a jacking component used for jacking one side of the blade shroud against the datum plane is fixed to the other side of the measuring hole.
As a preferred embodiment, the tightening assembly comprises a tightening seat and a tightening bolt, the tightening seat is vertically fixed on the end face positioning plate, the upper end of the tightening seat extends out of the end face of the pitch measurement plate, and the tightening bolt can be adjustably mounted on the tightening seat along the tightening seat.
As a preferred embodiment, the measuring hole includes an inner side wall located in the middle, a first inclined side wall and a second inclined side wall are arranged on two sides of the inner side wall, the inner side wall is arranged horizontally, an arc transition portion is arranged at a joint of the first inclined side wall and one end of the inner side wall, and an included angle between the second inclined side wall and the other end of the inner side wall is an obtuse angle.
In a preferred embodiment, the end positioning plate has an extension extending out of the measuring hole toward one side.
As a preferred embodiment, the middle part of the end surface positioning plate is provided with a long strip-shaped notch, and the width of the notch is smaller than that of the measuring hole.
Compared with the prior art the utility model discloses blade shroud pitch detection measuring tool carries on spacingly through pitch measurement board with the one end and one side of blade shroud, and as the reference surface, the opposite side detects the shroud through the clearance gauge and whether satisfies the technological requirement. Not only the structure is simple, but also the design is ingenious; and the method is convenient to operate, improves the detection efficiency of the blade shroud pitch and reduces the detection error.
Drawings
Fig. 1 is a front view of a blade shroud pitch measuring tool according to an embodiment of the present invention;
fig. 2 is a side view of a blade shroud pitch measuring tool according to an embodiment of the present invention;
fig. 3 is a detection state diagram of the blade shroud pitch measuring tool according to the embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, in the present embodiment, a blade shroud pitch measuring tool includes an end surface positioning plate 1, a measurement equal-height block 2 and a pitch measurement plate 3, the measurement equal-height block 2 is disposed between the end surface positioning plate 1 and the pitch measurement plate 3, and the three are fixedly connected into a whole by a fixing screw, and the measurement equal-height block 2 with different thicknesses is replaced to be suitable for performing shroud pitch detection on blades with different specifications, a measurement hole 5 for measuring the shroud pitch of the blade 4 is disposed on the pitch measurement plate 3, the bottom of the measurement hole 5 is open, the measurement hole 5 includes an inner side wall 50 located in the middle, a first inclined side wall 51 and a second inclined side wall 52 inclined in the same direction are disposed on two sides of the inner side wall 50, the inner side wall 50 is horizontally disposed, an arc transition portion 53 is disposed at a connection position of the first inclined side wall 51 and one end of the inner side wall 50, the second inclined side wall 52 forms an obtuse angle with the other end of the inner side wall 50.
The end face positioning plate 1 extends towards one side to be provided with an extending portion 6 extending out of the measuring hole 5, a long-strip-shaped notch 7 is formed in the middle of the end face positioning plate 1, the width of the notch 7 is smaller than that of the measuring hole 5, a first inclined side wall 51 of the measuring hole 5 serves as a reference surface, a jacking assembly used for enabling one side of a blade 4 placed into a blade shroud to be jacked on the reference surface is fixed to the other side, the jacking assembly comprises a jacking seat 8 and a jacking bolt 9, the jacking seat 8 is vertically fixed on the end face positioning plate 1, the upper end of the jacking seat extends out of the end face of the pitch measuring plate 3, and the jacking bolt 9 can be adjustably installed on the jacking seat 8 along the jacking seat 8.
When detecting, the tip shroud terminal surface of blade 4 passes measuring hole 5 and keeps flat in terminal surface locating plate 1, the one end of the tip shroud of blade 4 this moment carries on spacingly through inside wall 50, a lateral wall of the tip shroud of blade 4 carries on spacingly through first slope lateral wall 51, as the reference surface, adjust the tight bolt 9 of top and push up another lateral wall of the tip shroud of blade 4, guarantee that a lateral wall of the tip shroud of blade 4 hugs closely first slope lateral wall 51 and sets up, whether rethread feeler gauge detects another lateral wall of the tip shroud of blade 4 and the interval A of second slope lateral wall 52 satisfies the technological requirement can.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The blade shroud pitch measuring tool is characterized by comprising an end face positioning plate, equal-height measuring blocks and a pitch measuring plate, wherein the equal-height measuring blocks are arranged between the end face positioning plate and the pitch measuring plate and fixedly connected into a whole through fixing screws, a measuring hole used for measuring the pitch of a blade shroud is formed in the pitch measuring plate, the bottom of the measuring hole is open, one side of the measuring hole is used as a datum plane, and a jacking component used for jacking one side of the blade shroud against the datum plane is fixed corresponding to the other side of the measuring hole.
2. The blade shroud pitch measurement gauge according to claim 1, wherein the puller assembly includes a puller seat and a puller bolt, the puller seat is vertically fixed to the end face positioning plate, and an upper end of the puller seat extends out of the end face of the pitch measurement plate, and the puller bolt is adjustably mounted on the puller seat along the puller seat.
3. The blade shroud pitch measuring gauge according to claim 1, wherein the measuring hole includes an inner side wall located in the middle, a first inclined side wall and a second inclined side wall are provided on two sides of the inner side wall, the inner side wall is horizontally arranged, an arc transition portion is provided at a junction of the first inclined side wall and one end of the inner side wall, and an included angle between the second inclined side wall and the other end of the inner side wall is an obtuse angle.
4. The blade shroud pitch measurement gauge of claim 1, wherein said end positioning plate extends to one side with an extension that protrudes out of said measurement hole.
5. The blade shroud pitch measuring tool according to claim 1, wherein an elongated notch is formed in a middle portion of the end surface positioning plate, and a width of the notch is smaller than a width of the measuring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921211985.7U CN210108232U (en) | 2019-07-30 | 2019-07-30 | Blade shroud pitch detection measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921211985.7U CN210108232U (en) | 2019-07-30 | 2019-07-30 | Blade shroud pitch detection measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210108232U true CN210108232U (en) | 2020-02-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921211985.7U Active CN210108232U (en) | 2019-07-30 | 2019-07-30 | Blade shroud pitch detection measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210108232U (en) |
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2019
- 2019-07-30 CN CN201921211985.7U patent/CN210108232U/en active Active
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