CN107843174B - Measuring tool for measuring back splitting angle inclined plane position of bacterial blade root - Google Patents
Measuring tool for measuring back splitting angle inclined plane position of bacterial blade root Download PDFInfo
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- CN107843174B CN107843174B CN201711259175.4A CN201711259175A CN107843174B CN 107843174 B CN107843174 B CN 107843174B CN 201711259175 A CN201711259175 A CN 201711259175A CN 107843174 B CN107843174 B CN 107843174B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- A Measuring Device Byusing Mechanical Method (AREA)
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Abstract
The invention provides a measuring tool for measuring the back wedge angle inclined plane position of a bacterial blade root, which can solve the problems that the existing measuring tool for measuring the back wedge angle inclined plane position of the bacterial blade root is complex in structure, easy to cause human errors and influence the accuracy of measuring results. The device comprises a blade root supporting seat, a first positioning block and a second positioning block; the top surface of the blade root supporting seat is provided with a first supporting inclined surface and a second supporting inclined surface, the included angle between the first supporting inclined surface and the bottom surface of the blade root supporting seat is equal to the included angle between the back splitting angle inclined surface and the back radial surface of the bacterial blade root, and the first supporting inclined surface is used for supporting the back radial surface of the bacterial blade root; the second supporting inclined plane is perpendicular to the first supporting inclined plane and is used for supporting the steam inlet edge of the bacterial blade root; the first positioning block and the second positioning block are respectively arranged on the front side surface of the blade root supporting seat and are respectively used for being abutted against two blade root step surfaces of the bacterial blade root; the back cleaving angle of the bacterial blade root extends out of the blade root supporting seat backwards.
Description
Technical Field
The invention relates to the field of measuring tools for bacterial blade roots of steam turbine blades, in particular to a measuring tool for measuring the back wedge angle inclined plane position of a bacterial blade root.
Background
According to the shapes of the blade roots, the blade roots of the turbine blades can be roughly divided into four types, namely a bacterial blade root, a T-shaped blade root, a fork blade root and a longitudinal tree blade root. Fig. 1 shows a bacterial blade root, wherein 1 is a blade root step surface, 2 is a steam inlet edge, 3 is a back radial surface, 4 is a back splitting angle, and a is the gear opening size of the blade root. The angle is split back for assembly of the bacterial blade root, and the position accuracy of the angle inclined plane 41 is split back directly affects the subsequent assembly accuracy of the blade.
The existing back wedge angle measuring tool is complex in structure, and the measuring tool needs to use a feeler gauge for measurement, and when in measurement, due to the fact that measuring methods of different detection personnel are different, differences can occur in selection of the feeler gauge, personal errors are generated, and accuracy of measuring results is affected.
Disclosure of Invention
Aiming at the problems, the invention provides a measuring tool for measuring the back wedge angle inclined plane position of a bacterial blade root, which can solve the problems that the existing measuring tool for measuring the back wedge angle inclined plane position of the bacterial blade root is complex in structure, easy to cause human errors and influence the accuracy of a measuring result.
The technical scheme is as follows: a survey utensil that is used for measuring bacterial type blade root back of body angle inclined plane position of splitting, its characterized in that: the device comprises a blade root supporting seat, a first positioning block and a second positioning block; the top surface of the blade root supporting seat is provided with a first supporting inclined surface and a second supporting inclined surface, the included angle between the first supporting inclined surface and the bottom surface of the blade root supporting seat is equal to the included angle between the back splitting angle inclined surface and the back radial surface of the bacterial blade root, and the first supporting inclined surface is used for supporting the back radial surface of the bacterial blade root; the second supporting inclined plane is perpendicular to the first supporting inclined plane and is used for supporting the steam inlet edge of the bacterial blade root; the first positioning block and the second positioning block are respectively arranged on the front side surface of the blade root supporting seat and are respectively used for abutting against two blade root step surfaces of the bacterial blade root; the back cleaving angle of the bacterial blade root extends out of the blade root supporting seat backwards.
It is further characterized by:
the distance between the first positioning block and the second positioning block is adjustable.
The front side of the blade root supporting seat is provided with a plurality of threaded holes, the included angle between the central connecting line of the threaded holes and the bottom surface of the blade root supporting seat is equal to the included angle between the first supporting inclined plane and the bottom surface of the blade root supporting seat, and the first positioning block is fixed on the blade root supporting seat through screws assembled in the threaded holes.
The second positioning block is fixedly arranged on the blade root supporting seat through a screw.
The beneficial effects of the invention are as follows:
1. according to the measuring tool disclosed by the invention, the first supporting inclined plane and the second supporting inclined plane are arranged on the top surface of the blade root supporting seat, the included angle between the first supporting inclined plane and the bottom surface of the blade root supporting seat is equal to the included angle between the back angle splitting inclined plane and the back radial surface of the bacterial blade root, and the second supporting inclined plane is perpendicular to the first supporting inclined plane, so that when the bacterial blade root is placed on the blade root supporting seat, the back radial surface and the steam inlet side can be respectively attached to the first supporting inclined plane and the second supporting inclined plane, the back angle splitting inclined plane is parallel to the bottom surface of the blade root supporting seat, and the first positioning block and the second positioning block are tightly abutted against the two blade root step surfaces of the bacterial blade root, so that the axial limiting of the bacterial blade root is realized, and finally, the distance between the bottom surface of the blade root supporting seat and the back angle splitting inclined plane can be measured by using the depth gauge, so that the human error is avoided, and the measuring tool is simple in structure, convenient to use and low in cost;
2. through making the distance between first locating piece and the second locating piece adjustable to make this survey utensil can be applicable to and measure the back angle of wedge inclined plane angle the same but open the different fungus type blade root of shelves size, compare with current survey utensil needs to design dedicated back angle of wedge survey utensil alone to the fungus type blade root of every size, the commonality is stronger, has further reduced and has surveyed the utensil cost.
Drawings
FIG. 1 is a schematic view of a conventional bacterial blade root;
FIG. 2 is a front view of the measuring tool of the present invention;
FIG. 3 is a schematic view of the mounting relationship between a bacterial blade root and a measuring tool of the present invention;
FIG. 4 is a schematic diagram of measuring the angle of back-split bevel position using the measuring tool of the present invention.
Detailed Description
Referring to fig. 2 to 4, the measuring tool for measuring the back cleaving angle inclined plane position of the bacterial blade root of the present invention comprises a blade root supporting seat 5, a first positioning block 6 and a second positioning block 7; the top surface of the blade root supporting seat 5 is provided with a first supporting inclined surface 51 and a second supporting inclined surface 52, an included angle alpha between the first supporting inclined surface 51 and the bottom surface 53 of the blade root supporting seat is equal to an included angle beta between the back splitting angle inclined surface 41 and the back radial surface 3 of the bacterial blade root, and the first supporting inclined surface 51 is used for supporting the back radial surface 3 of the bacterial blade root; the second supporting inclined plane 52 is perpendicular to the first supporting inclined plane 51 and is used for supporting the steam inlet edge 2 of the bacterial blade root; the first positioning block 6 and the second positioning block 7 are respectively arranged on the front side surface 54 of the blade root supporting seat, the distance between the first positioning block 6 and the second positioning block 7 is adjustable, and the first positioning block 6 and the second positioning block 7 are respectively used for being abutted against the two blade root step surfaces 1 of the bacterial blade root; the back cleaving angle 4 of the bacterial blade root extends back out of the blade root supporting seat 5.
Preferably, as shown in fig. 2, the front side 54 of the blade root supporting seat is provided with a plurality of threaded holes 541, an included angle delta between a central line of the plurality of threaded holes 541 and the bottom surface 53 of the blade root supporting seat is equal to an included angle alpha between the first supporting inclined plane 51 and the bottom surface 53 of the blade root supporting seat, and the first positioning block 6 is fixed on the blade root supporting seat 5 through screws assembled in the threaded holes 541. The first positioning block adopts a screw-fixed installation mode, so that the installation position of the first positioning block can be conveniently adjusted.
Preferably, as seen in fig. 2, the second positioning block 7 is fixedly mounted on the blade root support 5 by means of screws. The second locating block adopts the installation form of screw fixation, is convenient for install and dismantle.
The following specifically describes the process of measuring the back cleaving angle inclined plane position of the bacterial blade root by using the measuring tool of the invention: firstly, measuring the gear opening size A of a bacterial blade root, adjusting the distance between a first positioning block 6 and a second positioning block 7 according to the gear opening size A, and installing the first positioning block 6 on a blade root supporting seat 5; then, mounting the bacterial blade root on a measuring tool, enabling the back radial surface 3 of the bacterial blade root to be attached to a first supporting inclined surface 51 of the blade root supporting seat 5, enabling the steam inlet edge 2 to be attached to a second supporting inclined surface 52 of the blade root supporting seat 5, and enabling the first positioning block 6 and the second positioning block 7 to be respectively abutted to the blade root step surface 1; finally, the distance B between the bottom surface 53 of the blade root supporting seat and the back split angle inclined surface 41 is measured by a depth gauge.
Claims (4)
1. A survey utensil that is used for measuring bacterial type blade root back of body angle inclined plane position of splitting, its characterized in that: the device comprises a blade root supporting seat, a first positioning block and a second positioning block; the top surface of the blade root supporting seat is provided with a first supporting inclined surface and a second supporting inclined surface, the included angle between the first supporting inclined surface and the bottom surface of the blade root supporting seat is equal to the included angle between the back splitting angle inclined surface and the back radial surface of the bacterial blade root, and the first supporting inclined surface is used for supporting the back radial surface of the bacterial blade root; the second supporting inclined plane is perpendicular to the first supporting inclined plane and is used for supporting the steam inlet edge of the bacterial blade root; the first positioning block and the second positioning block are respectively arranged on the front side surface of the blade root supporting seat and are respectively used for abutting against two blade root step surfaces of the bacterial blade root; the back cleaving angle of the bacterial blade root extends out of the blade root supporting seat backwards.
2. The measuring tool for measuring the back angle and bevel position of a bacterial blade root according to claim 1, wherein the measuring tool comprises: the distance between the first positioning block and the second positioning block is adjustable.
3. The measuring tool for measuring the back angle and bevel position of a bacterial blade root according to claim 1, wherein the measuring tool comprises: the front side of the blade root supporting seat is provided with a plurality of threaded holes, the included angle between the central connecting line of the threaded holes and the bottom surface of the blade root supporting seat is equal to the included angle between the first supporting inclined plane and the bottom surface of the blade root supporting seat, and the first positioning block is fixed on the blade root supporting seat through screws assembled in the threaded holes.
4. The measuring tool for measuring the back angle and bevel position of a bacterial blade root according to claim 1, wherein the measuring tool comprises: the second positioning block is fixedly arranged on the blade root supporting seat through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259175.4A CN107843174B (en) | 2017-12-04 | 2017-12-04 | Measuring tool for measuring back splitting angle inclined plane position of bacterial blade root |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711259175.4A CN107843174B (en) | 2017-12-04 | 2017-12-04 | Measuring tool for measuring back splitting angle inclined plane position of bacterial blade root |
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| CN107843174A CN107843174A (en) | 2018-03-27 |
| CN107843174B true CN107843174B (en) | 2023-05-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109434713B (en) * | 2018-12-10 | 2023-11-10 | 无锡透平叶片有限公司 | Measuring device for two side angle surfaces of blade root of steam turbine blade |
| CN109357585A (en) * | 2018-12-10 | 2019-02-19 | 无锡透平叶片有限公司 | The radius of gyration measuring device of turbine blade bacterial type blade root |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212742A (en) * | 2013-04-02 | 2013-07-24 | 哈尔滨汽轮机厂有限责任公司 | Milling tool for steam turbine bacterial-type root blades |
| WO2015129580A1 (en) * | 2014-02-26 | 2015-09-03 | 三菱日立パワーシステムズ株式会社 | Rotor blade retention device, rotor blade fixing member pressing device, and manufacture method, assembly method and disassembly method of rotating machine |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745672B (en) * | 2009-12-21 | 2013-01-23 | 东方电气集团东方汽轮机有限公司 | Method for processing slots on turbine rotor for mushroom-shaped blade roots |
| CN201795764U (en) * | 2010-08-12 | 2011-04-13 | 四川省自贡市海川实业有限公司 | Special measuring tool for radial inclined surface of blade basin |
| CN102145464B (en) * | 2010-11-20 | 2013-01-23 | 无锡透平叶片有限公司 | Locating and clamping device for machining bacterial type blade shroud |
| CN102179552B (en) * | 2011-04-07 | 2013-05-15 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN202057278U (en) * | 2011-04-25 | 2011-11-30 | 常州市三维技术成套设备有限公司 | Measurement instrument for circular arc after mushroom-shaped blade root of blade of steam turbine being processed |
| FR2988075B1 (en) * | 2012-03-19 | 2014-04-25 | Eurocopter France | DEVICE FOR MONITORING THE BEHAVIOR AND / OR TRAINING BEHAVIOR OF A ROTOR BLADE OF A GIRAVION |
| CN102862018A (en) * | 2012-09-04 | 2013-01-09 | 哈尔滨汽轮机厂有限责任公司 | Bacterial type blade simulation assembling method |
| CN203092194U (en) * | 2012-12-28 | 2013-07-31 | 东方电气集团东方汽轮机有限公司 | Positioning fixture for processing fungus-shaped blade roots |
| CN203053377U (en) * | 2013-02-20 | 2013-07-10 | 哈尔滨哈汽叶片加工有限公司 | Tool for detecting inner swing angle and back swing angle of steam turbine blade |
| CN106625337B (en) * | 2016-12-28 | 2018-07-06 | 无锡透平叶片有限公司 | The blade root detent mechanism of T Steam Turbine shape blade root blade profile detection |
| CN106514360A (en) * | 2016-12-30 | 2017-03-22 | 无锡透平叶片有限公司 | Fixture device for tenon tooth blade milling blade root |
| CN207716979U (en) * | 2017-12-04 | 2018-08-10 | 无锡透平叶片有限公司 | A kind of measuring tool for splitting angle incline position for measuring the bacterial type blade root back of the body |
-
2017
- 2017-12-04 CN CN201711259175.4A patent/CN107843174B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212742A (en) * | 2013-04-02 | 2013-07-24 | 哈尔滨汽轮机厂有限责任公司 | Milling tool for steam turbine bacterial-type root blades |
| WO2015129580A1 (en) * | 2014-02-26 | 2015-09-03 | 三菱日立パワーシステムズ株式会社 | Rotor blade retention device, rotor blade fixing member pressing device, and manufacture method, assembly method and disassembly method of rotating machine |
Non-Patent Citations (1)
| Title |
|---|
| 汽轮机叶片菌型叶根数控加工关键技术研究;曾祥录;周奎;李登万;;制造技术与机床(05);全文 * |
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