CN217155193U - Detection apparatus for turbine blade root circular arc groove - Google Patents
Detection apparatus for turbine blade root circular arc groove Download PDFInfo
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- CN217155193U CN217155193U CN202122382649.2U CN202122382649U CN217155193U CN 217155193 U CN217155193 U CN 217155193U CN 202122382649 U CN202122382649 U CN 202122382649U CN 217155193 U CN217155193 U CN 217155193U
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- turbine blade
- arc groove
- steam turbine
- root
- inner support
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Abstract
The utility model discloses a detection apparatus for steam turbine blade root circular arc groove, it includes the bottom plate, the inner support board, back of the body locating piece, the sliding block and the rule cover that leads to only, the parallel interval of inner support board and back of the body locating piece is fixed in on the bottom plate, and the width setting of interval cooperation steam turbine blade root between inner support board and the back of the body locating piece, the steam turbine blade is vertical to be placed on inner support board and back of the body locating piece and the circular arc groove of root towards the inner support board setting, the spout has been seted up in the inner support board, the sliding block can assemble in the spout with reciprocating sliding, the rule cover that leads to only is installed on the sliding block and is stretched into the circular arc inslot, and lead to and set up the rule or lead to the rule that are used for detecting on the rule cover that leads to only. The detection device for the arc groove at the root part of the steam turbine blade adopts a sliding detection mode of the check gauge, and has the advantages of simple structure and ingenious design; the detection efficiency is improved, the operation is convenient, and the detection error is small.
Description
Technical Field
The utility model belongs to the technical field of the turbine blade detects, especially, relate to a detection device that is used for blade root circular arc groove of high-power steam turbine.
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 does work outwards. Steam turbines are the most widely used prime movers in modern thermal power plants. The steam turbine has the advantages of large single machine power, high efficiency, long service life and the like, and is also used in metallurgical industry, chemical industry and ship power devices.
The turbine blade is an important part of the turbine, and the design and the processing quality of the turbine blade directly affect the working efficiency and the service life of the turbine. As is well known, after the turbine blade is machined, the machining precision of an arc groove of an inner arc of the root of the turbine blade needs to be detected, and at present, the existing detection device has the defects of complex operation, low detection efficiency and large detection error.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a detection device in turbine blade root circular arc groove to there is complex operation, the low and big problem of detection error in the detection device in turbine blade root circular arc groove among the solution prior art.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a detection apparatus for steam turbine blade root circular arc groove, its includes bottom plate, interior backup pad, back of the body locating piece, sliding block and ending rule cover, wherein, interior backup pad and back of the body locating piece parallel interval are fixed in on the bottom plate, just interval cooperation steam turbine blade root's between interior backup pad and the back of the body locating piece width setting, the steam turbine blade is vertical place in on interior backup pad and the back of the body locating piece and the circular arc groove orientation of root the interior backup pad sets up, the spout has been seted up in the interior backup pad, the sliding block can assemble with reciprocating sliding in the spout, ending rule cover install in on the sliding block and stretch into in the circular arc inslot, just it sets up no go gage or lead to the rule that is used for detecting to go to the rule cover.
Furthermore, the bottom plate, the inner supporting plate and the back positioning block are correspondingly provided with first threaded holes, and the inner supporting plate and the back positioning block are fixedly arranged on the bottom plate through locking bolts.
Furthermore, the bottom plate, the inner supporting plate and the back positioning block are correspondingly provided with positioning holes, and the inner supporting plate and the back positioning block are positioned with the bottom plate through the first positioning pins.
Furthermore, a positioning hole is formed in the back positioning block, and a second positioning pin for positioning the turbine blade is installed in the positioning hole.
Further, the sliding block is including being located pole portion in the spout, the inner end of pole portion is provided with the spacing collar, the spacing collar is hugged closely the medial surface setting of interior backup pad, the center department of spacing collar inwards extends to have the installation head that is used for installing the no-go gauge suite.
Further, a second threaded hole is formed in the outer end of the rod portion, and a handle located on the outer side of the inner supporting plate is installed in the second threaded hole.
Furthermore, a bushing is fixedly sleeved on the mounting head, and the stop gauge sleeve is assembled outside the bushing.
Furthermore, the sliding groove is a smooth arc-shaped groove matched with the length of the arc-shaped groove.
The utility model has the advantages that compared with the prior art, the detection device of the arc groove at the root part of the steam turbine blade has simple structure and ingenious design; and the mode of sliding detection of the no-go gauge is adopted, so that the detection efficiency is improved, the operation is convenient, and the detection error is small.
Drawings
Fig. 1 is a schematic front view of a detection device for a turbine blade root arc groove according to an embodiment of the present invention;
fig. 2 is a schematic side view of a detection device for a turbine blade root arc groove according to an embodiment of the present invention;
fig. 3 is a schematic top view of a detection device for a turbine blade root arc groove according to an embodiment of the present invention;
fig. 4 is a sectional view of a sliding block of the detecting device for the arc groove at the root of the steam turbine blade provided by the embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, in the embodiment, a detection device for an arc groove at the root of a steam turbine blade includes a bottom plate 1, an inner support plate 2, a back positioning block 3, a sliding block 4 and a stop gauge sleeve 5, wherein the bottom plate 1, the inner support plate 2 and the back positioning block 3 are respectively and correspondingly provided with a positioning hole, the inner support plate 2 and the back positioning block 3 are positioned on the bottom plate 1 through a first positioning pin 6, the bottom plate 1, the inner support plate 2 and the back positioning block 3 are respectively and correspondingly provided with a first threaded hole, the inner support plate 2 and the back positioning block 3 are fixedly mounted on the bottom plate 1 through a locking bolt 7, the inner support plate 2 and the back positioning block 3 are arranged in parallel at intervals, and the interval between the inner supporting plate 2 and the back positioning block 3 is matched with the width of the root of the turbine blade 8, the turbine blade 8 is vertically placed on the inner supporting plate 2 and the back positioning block 3, and the arc groove 9 of the root is arranged towards the inner supporting plate 2.
The locating hole has been seted up on back of the body locating piece 3, install the second locating pin 10 that is used for fixing a position steam turbine blade 8 in the locating hole, spout 11 has been seted up on interior backup pad 2, spout 11 is the smooth arc wall of cooperation arc groove 9 length setting, sliding block 4 is including the pole portion 40 that is located spout 11, the inner end of pole portion 40 is provided with spacing collar 41, the medial surface setting of interior backup pad 2 is hugged closely to spacing collar 41, the center department of spacing collar 41 extends to the inboard has installation head 42, fixed cover is equipped with bush 12 on the installation head 42, only lead to rule cover 5 assembles outside bush 12 and is located arc groove 9, only lead to set up no go gage or lead to the rule that is used for the detection on the rule cover 5, second screw hole 43 has been seted up to the outer end of pole portion 40, install the handle 13 that is located the outside of interior backup pad 2 in the second screw hole 43.
When detecting, earlier with steam turbine blade 8 vertical place interior backup pad 2 and back of the body locating piece 3 on, set up no-go gage or lead to the rule on ending to go to rule cover 5, then operate sliding block 4 through handle 13 and reciprocating sliding in spout 11, and then drive and end to go to rule cover 5 reciprocating motion in circular arc groove 9, through changing and end to go to the rule realization and lead to ending, the slip in-process leads to the rule and leads to, and the no-go gage ends.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a detection apparatus for steam turbine blade root circular arc groove, its characterized in that, includes bottom plate, interior backup pad, back of the body locating piece, sliding block and leads to the rule cover, interior backup pad and back of the body locating piece parallel interval are fixed in on the bottom plate, just interval cooperation steam turbine blade root's between interior backup pad and the back of the body locating piece width setting, steam turbine blade vertical place in on interior backup pad and the back of the body locating piece and the circular arc groove orientation of root the interior backup pad sets up, the spout has been seted up in the interior backup pad, the sliding block can assemble with reciprocating sliding in the spout, lead to the rule cover install in just stretch into on the sliding block the circular arc inslot, just lead to set up no-go gauge or lead to the rule that is used for detecting on the rule cover.
2. The device for detecting the arc groove of the root of the steam turbine blade as claimed in claim 1, wherein the base plate, the inner support plate and the back positioning block are respectively provided with a first threaded hole, and the inner support plate and the back positioning block are fixedly mounted on the base plate through locking bolts.
3. The apparatus for detecting the arc groove at the root of the steam turbine blade according to claim 1, wherein the bottom plate, the inner support plate and the back positioning block are respectively provided with a positioning hole, and the inner support plate and the back positioning block are positioned with the bottom plate by a first positioning pin.
4. The apparatus for detecting the arc groove at the root of the steam turbine blade as claimed in claim 1, wherein the back positioning block is provided with a positioning hole, and a second positioning pin for positioning the steam turbine blade is installed in the positioning hole.
5. The device for detecting the arc groove of the root of the steam turbine blade as claimed in claim 1, wherein the sliding block comprises a rod part positioned in the sliding groove, a limiting ring is arranged at the inner end of the rod part, the limiting ring is arranged to be tightly attached to the inner side surface of the inner supporting plate, and an installation head for installing a stop gauge sleeve extends inwards from the center of the limiting ring.
6. The apparatus for detecting the arc groove of the root of the steam turbine blade according to claim 5, wherein a second threaded hole is formed at the outer end of the rod portion, and a handle located at the outer side of the inner support plate is installed in the second threaded hole.
7. The apparatus for detecting the arc groove of the root of the steam turbine blade as claimed in claim 5, wherein a bushing is fixedly sleeved on the mounting head, and the no-go gauge is assembled outside the bushing.
8. The apparatus of claim 1, wherein the sliding groove is a smooth arc groove disposed to match the length of the arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122382649.2U CN217155193U (en) | 2021-09-29 | 2021-09-29 | Detection apparatus for turbine blade root circular arc groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122382649.2U CN217155193U (en) | 2021-09-29 | 2021-09-29 | Detection apparatus for turbine blade root circular arc groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217155193U true CN217155193U (en) | 2022-08-09 |
Family
ID=82660085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122382649.2U Active CN217155193U (en) | 2021-09-29 | 2021-09-29 | Detection apparatus for turbine blade root circular arc groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217155193U (en) |
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2021
- 2021-09-29 CN CN202122382649.2U patent/CN217155193U/en active Active
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