CN216205781U - Horizontal type profile detection measuring tool for steam turbine blade - Google Patents
Horizontal type profile detection measuring tool for steam turbine blade Download PDFInfo
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- CN216205781U CN216205781U CN202122383773.0U CN202122383773U CN216205781U CN 216205781 U CN216205781 U CN 216205781U CN 202122383773 U CN202122383773 U CN 202122383773U CN 216205781 U CN216205781 U CN 216205781U
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Abstract
The utility model discloses a horizontal type profile detection measuring tool for a steam turbine blade, which comprises a bottom plate, a back positioning plate and a pitch detection block, wherein one end of the bottom plate is vertically fixed with the back positioning plate, the inner side surface of the back positioning plate is provided with an upper positioning pin, the inner side surface of the back positioning plate is provided with a positioning hole below the upper positioning pin, the pitch detection block can be detachably assembled on the inner side surface of the back positioning plate, one end of the pitch detection block is provided with a detection notch, the other end of the pitch detection block is provided with a pressing component for pressing the blade, the size of the detection notch is not smaller than the size of a handle part of the blade, the edge of the detection notch is provided with a scale mark for detecting the pitch of the handle part of the blade, and the bottom plate is provided with a plurality of steam passage detection positioning pins at intervals in parallel along the length direction of the blade. The horizontal type profile detection measuring tool for the steam turbine blade is simple in structure and ingenious in design; and the universality is good, the pitch of the handle part, the inner arc groove and the steam passage can be detected simultaneously, 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 turbine blade detection, and particularly relates to a horizontal type profile detection measuring tool for a turbine blade of a high-power 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 simultaneously, the rotor 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, the profile of the turbine blade needs to be detected after the turbine blade is machined, the profile detection comprises handle pitch detection, inner arc groove detection and steam passage detection, and different detection tools are required to detect the existing detection modes respectively. The defects of complex operation, low detection efficiency and large detection error exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a horizontal type profile detection measuring tool for a steam turbine blade, which aims to solve the problems of complex operation, low detection efficiency and large detection error in the profile detection of the steam turbine blade in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a horizontal profile of steam turbine blade detects measuring tool, its includes bottom plate, back of the body locating plate and pitch detection piece, wherein, the vertical fixed back of the body locating plate of one end of bottom plate, the medial surface of back of the body locating plate is provided with the locating pin, just on the medial surface of back of the body locating plate in the locating hole has been seted up to the below of going up the locating pin, the pitch detection piece can assemble with disassembling and assembling on the medial surface of back of the body locating plate, just the pitch detects the one end of piece and has seted up the detection breach, and the other end is provided with the subassembly that compresses tightly that is used for compressing tightly the blade, the size that detects the breach is not less than the stalk portion size of blade, the edge that detects the breach is provided with the scale mark that is used for detecting the stalk portion pitch of blade, be provided with a plurality of grades on the bottom plate along blade length direction parallel interval and detect the locating pin.
Further, an upper guide plate and a lower guide plate are fixed to the upper end and the lower end of the inner side face of the back positioning plate respectively, a slot is formed between the upper guide plate and the inner side face of the back positioning plate and between the lower guide plate and the inner side face of the back positioning plate, and step faces used for being clamped into the slot are arranged at the upper side edge and the lower side edge of the pitch detection block.
Furthermore, the pressing assembly comprises an end baffle, a pressing screw and a spiral spring, the end baffle is fixed on the back positioning plate, the pressing screw penetrates through the end baffle and is connected to the pitch detection block, and the spiral spring is sleeved on the pressing screw and is located between the end baffle and the pitch detection block.
Furthermore, a base plate is fixed on the bottom plate, and the steam passage detection positioning pin is fixedly arranged on the base plate.
Furthermore, the detection gap is of an isosceles trapezoid structure, and the length of the opening of the detection gap is greater than that of the bottom edge of the detection gap.
Compared with the prior art, the horizontal type profile detection measuring tool for the steam turbine blade has the advantages of simple structure and ingenious design; and the universality is good, the pitch of the handle part, the inner arc groove and the steam passage can be detected simultaneously, 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 horizontal profile measuring tool for a steam turbine blade according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a horizontal profile measuring gauge for a steam turbine blade according to an embodiment of the present invention;
fig. 3 is a schematic side view of a horizontal profile measuring tool for a turbine blade according to an embodiment of the present invention.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This 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 utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. 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 3, in this embodiment, a horizontal profile measuring tool for a steam turbine blade includes a bottom plate 1, a back positioning plate 2 and a pitch detecting block 3, the back positioning plate 2 is vertically fixed at a side edge of one end of the bottom plate 1 through a connecting bolt, an upper guide plate 4 and a lower guide plate 5 are respectively fixed at an upper end and a lower end of an inner side surface of the back positioning plate 2, a slot is formed between the upper guide plate 4 and the inner side surface of the back positioning plate 2 and the lower guide plate 5, step surfaces 6 for being clamped into the slot are arranged at upper and lower side edges of the pitch detecting block 3, the pitch detecting block 3 is assembled on the inner side surface of the back positioning plate 2 through the upper guide plate 4 and the lower guide plate 5, a detecting gap 7 is formed at one end of the pitch detecting block 3, a pressing member for pressing the blade 8 is arranged at the other end of the pitch detecting gap 7, the detecting gap 7 is in an isosceles trapezoid structure, and the length of an opening is greater than the length of a bottom edge, the whole size of detecting breach 7 is not less than the stalk portion size of blade 8, compresses tightly the subassembly and includes tip baffle 9, housing screw 10 and coil spring 11, and tip baffle 9 is fixed in on back of the body locating plate 2, and housing screw 10 passes tip baffle 9 and sets up and connect on pitch detects piece 3, and coil spring 11 overlaps on housing screw 10 and is located between tip baffle 9 and the pitch detects piece 3.
The edge of detecting breach 7 is provided with scale mark 12 that is used for detecting the stalk portion pitch of blade 8, and the medial surface of back of the body locating plate 2 is provided with locating pin 13, and has seted up the locating hole in the below of last locating pin 13 on the medial surface of back of the body locating plate 2, has a backing plate 14 for the other end that sets up back of the body locating plate 2 through the fix with screw on the bottom plate, and it detects locating pin 15 to be provided with a plurality of shelves steam ducts along the parallel interval of blade 8 length direction on backing plate 14.
During detection, the blade 8 is assembled on the upper positioning pin 13, the lower positioning pin 16 penetrates through the positioning holes in the blade 8 and the back positioning plate 2, the blade 8 is pressed and fixed on the back positioning plate 2 through the spiral spring 11 and the compression screw 10, the pitch of the handle part of the blade is detected according to the scale mark 12 on the pitch detection block 3, the size of an inner circle and an outer circle is detected through a stop gauge, and the blade steam passage is detected through the matching of the steam passage detection positioning pin 15 and the gear detection sample plate 17.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but is capable of various modifications and changes without departing from the spirit and scope of the utility model, which are intended to be within the scope of the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a horizontal profile of steam turbine blade detects measuring tool, its characterized in that, it includes that bottom plate, back of the body locating plate and pitch detect the piece, the vertical fixed back of the body locating plate of one end of bottom plate, the medial surface of back of the body locating plate is provided with the locating pin, just on the medial surface of back of the body locating plate in the locating hole has been seted up to the below of going up the locating pin, the pitch detect the piece can assemble with disassembling and assembling on the medial surface of back of the body locating plate, just the one end that the pitch detected the piece has seted up the detection breach, and the other end is provided with the subassembly that compresses tightly that is used for compressing tightly the blade, the size that detects the breach is not less than the stalk portion size of blade, the edge that detects the breach is provided with the scale mark that is used for detecting the stalk portion pitch of blade, be provided with a plurality of grades of steam passage along blade length direction parallel interval on the bottom plate and detect the locating pin.
2. The horizontal profile measuring gauge for the steam turbine blade according to claim 1, wherein an upper guide plate and a lower guide plate are respectively fixed at the upper end and the lower end of the inner side surface of the back positioning plate, slots are formed between the upper guide plate and the inner side surface of the back positioning plate and between the lower guide plate and the inner side surface of the back positioning plate, and step surfaces for being clamped into the slots are arranged at the upper side edge and the lower side edge of the pitch detection block.
3. The horizontal profile measuring gauge of a steam turbine blade according to claim 1, wherein the hold-down assembly comprises an end stop, a hold-down screw and a coil spring, the end stop is fixed on the back positioning plate, the hold-down screw is disposed through the end stop and connected to the pitch detecting block, and the coil spring is sleeved on the hold-down screw and located between the end stop and the pitch detecting block.
4. The horizontal profile measuring gauge for steam turbine blades according to claim 1, wherein a backing plate is fixed on the base plate, and the steam passage detection positioning pin is fixedly mounted on the backing plate.
5. The horizontal profile measuring gauge for steam turbine blades according to claim 1, wherein the detecting notch has an isosceles trapezoid shape, and the length of the opening is greater than the length of the bottom side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122383773.0U CN216205781U (en) | 2021-09-29 | 2021-09-29 | Horizontal type profile detection measuring tool for steam turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122383773.0U CN216205781U (en) | 2021-09-29 | 2021-09-29 | Horizontal type profile detection measuring tool for steam turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216205781U true CN216205781U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122383773.0U Active CN216205781U (en) | 2021-09-29 | 2021-09-29 | Horizontal type profile detection measuring tool for steam turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216205781U (en) |
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2021
- 2021-09-29 CN CN202122383773.0U patent/CN216205781U/en active Active
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