CN102401621A - Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor - Google Patents
Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor Download PDFInfo
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- CN102401621A CN102401621A CN2011104063167A CN201110406316A CN102401621A CN 102401621 A CN102401621 A CN 102401621A CN 2011104063167 A CN2011104063167 A CN 2011104063167A CN 201110406316 A CN201110406316 A CN 201110406316A CN 102401621 A CN102401621 A CN 102401621A
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- turbine rotor
- radial line
- type blade
- blade
- survey instrument
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Abstract
A locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor relates to a deviation measuring apparatus of blade assembled radial line, which solves the problem in the radial line deviation measuring tool that cannot guarantee the measuring precision, is inconvenient to measure and cannot realize the deviation measurement of the large low pressure rotor last-stage blade radial line. A base includes a main board and two side boards, wherein the front side and the rear side of the main board are respectively provided with a side board; the bottom surface of each side board is provided with two cylinder pins; an L-shaped rack is installed on the upper end face of the main board; a locating pin is installed on the left side face of the main board; a dialgage is installed on the vertical plate of the L-shaped rack; the top point on the head of the dialgage and the top point of the locating pin are on the same vertical line. The invention is used for the deviation measurement of locking sheet groove type blade assembled radial line of steam turbine rotor.
Description
Technical field
The present invention relates to a kind of turbine rotor blade assembling radiant rays deviation survey instrument, be specifically related to a kind of turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument.
Background technology
The radiant rays deviation of spinner blade assembling directly has influence on the through-flow parameter of steam passage of blade, and through-flow parameter is with the generated output that has influence on unit between straight.This just requires in the blade assembling process must strictness to control well blade radiant rays deviation, could guarantee the accuracy of blade rigging position, makes blade when unit operation, can be in correct working position.The high-power unit of steam turbine product more than 600,000; The second last stage blade of low pressure rotor adopts the blade locking mode of locking plate groove structure more; Mostly this structure impeller wheel face is the inclined-plane; And two impellers are opened shelves bottoms cylindrical and the wheel face cylindrical differs bigger, and generally about 800mm, and mostly blade is the blade of 530mm.The blade assembling process; If adopt traditional radiant rays measuring method; The radiant rays measurer of design is positioned at two impellers and opens on the cylindrical of shelves bottom; The measurer gauge head will stretch out millimeters long more than 100 and could contact with the blade root intermedium, and measurer top gauge outfit will be stretched out more than 100 millimeter long dozen on blade shroud, and the measuring stent length is wanted about 1 meter.Measurer self precision can't guarantee that at all the too big workman of measurer also can't carry out work by hand simultaneously, and the low pressure rotor second last stage blade radiant rays deviation of high-power unit adopts conventional gauges to measure, and can't guarantee measuring accuracy, and is not easy to measure.
Summary of the invention
The objective of the invention is to exist heavy in order to solve existing radiant rays deviation survey instrument; Can't guarantee measuring accuracy; And be not easy to problems of measurement; And can't realize large-scale low pressure rotor second last stage blade radiant rays deviation problems of measurement, and then a kind of turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument is provided.
Technical scheme of the present invention is: turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument comprises dial gauge, L type support, register pin, base and four straight pins; Base comprises mainboard and two side plates; The both sides, front and back of mainboard respectively are provided with a side plate; Two straight pins are installed on the bottom surface of each side plate, and L type support is installed on the upper surface of mainboard, on the left surface of mainboard register pin is installed; On the riser of L type support dial gauge is installed, the gauge outfit summit of dial gauge and the summit of register pin are on same vertical curve.
The present invention compared with prior art has following effect: survey instrument of the present invention utilizes the positioning supports of the locking plate groove periphery of impeller both sides as measurer; On the impeller wheel face that survey instrument is ridden over, the gauge head of survey instrument is short, the top of survey instrument and vane tip height basically identical; Survey instrument length is controlled in the 550mm; Greatly reduce length measured, improve the precision of survey instrument self, the gauge head of survey instrument directly drops on the blade measuring point; Improve measuring accuracy, the weight of survey instrument is urinated and is used in the workman.Survey instrument of the present invention is accurately controlled the radiant rays deviation of blade assembling; Solved large-scale low pressure rotor second last stage blade radiant rays deviation problems of measurement; Guaranteed to be in correct working position after the blade assembling; Make blade when unit operation, be in correct working position, improve unit generation efficient.
Description of drawings
Fig. 1 is the front view of turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument of the present invention;
Fig. 2 is the vertical view (having removed dial gauge) of Fig. 1;
Fig. 3 adopts turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument of the present invention to carry out instrumentation plan;
Fig. 4 is the right view of Fig. 3.
Embodiment
Embodiment one: combine Fig. 1 and Fig. 2 that this embodiment is described, the turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument of this embodiment comprises dial gauge 1, L type support 2, register pin 3, base 4 and four straight pins 5; Base 4 comprises mainboard 4-1 and two side plate 4-2; The both sides, front and back of mainboard 4-1 respectively are provided with a side plate 4-2; Two straight pins 5 are installed on the bottom surface of each side plate 4-2, and L type support 2 is installed on the upper surface of mainboard 4-1, and register pin 3 is installed on the left surface of mainboard 4-1; On the riser of L type support 2 dial gauge 1 is installed, the gauge outfit summit of dial gauge 1 and the summit of register pin 3 are on same vertical curve.
Embodiment two: combine Fig. 1 and Fig. 2 that this embodiment is described; The turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument of this embodiment comprises floor 6; The upper end of floor 6 is connected with the riser of L type support 2, and the lower end of floor 6 is connected with the base plate of L type support 2.So be provided with, structure is more stable.Other composition is identical with embodiment one with annexation.
Principle of work: combine Fig. 3 and Fig. 4 that principle of work is described, at first with dial gauge 1 zeroing, the line on the gauge outfit summit of dial gauge 1 and the summit of register pin 3 is on the perpendicular bisector of two straight pin 5 lines; Then; Base 4 is installed on the impeller of rotor 9; Straight pin 5 on the side plate 4-2 drops on the rotor locking plate groove cylindrical 7, and register pin 3 withstands on the blade root intermedium 8, and adjustment dial gauge 1 is beaten on integral shroud 10 gauge outfit; Straight pin 5 moves on rotor locking plate groove cylindrical 7, guarantees that the radiant rays 11 of blade passes through rotor center; Confirm the deviation of blade radiant rays according to the reading of dial gauge 1, according to ressembling measurement behind the difference size reconditioning integral shroud, dial gauge 1 reading is within the radiant rays deviation range of blade designing requirement, and the blade assembling is qualified.
Claims (2)
1. turbine rotor locking plate slot type blade assembles radiant rays deviation survey instrument, it is characterized in that: turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument comprises dial gauge (1), L type support (2), register pin (3), base (4) and four straight pins (5); Base (4) comprises mainboard (4-1) and two side plates (4-2); The both sides, front and back of mainboard (4-1) respectively are provided with a side plate (4-2); Two straight pins (5) are installed on the bottom surface of each side plate (4-2), and L type support (2) is installed on the upper surface of mainboard (4-1), and register pin (3) is installed on the left surface of mainboard (4-1); Dial gauge (1) is installed on the riser of L type support (2), and the summit of the gauge outfit summit of dial gauge (1) and register pin (3) is on same vertical curve.
2. turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument according to claim 1; It is characterized in that: turbine rotor locking plate slot type blade assembling radiant rays deviation survey instrument comprises floor (6); The upper end of floor (6) is connected with the riser of L type support (2), and the lower end of floor (6) is connected with the base plate of L type support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104063167A CN102401621A (en) | 2011-12-08 | 2011-12-08 | Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104063167A CN102401621A (en) | 2011-12-08 | 2011-12-08 | Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401621A true CN102401621A (en) | 2012-04-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104063167A Pending CN102401621A (en) | 2011-12-08 | 2011-12-08 | Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor |
Country Status (1)
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| CN (1) | CN102401621A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6390701A (en) * | 1986-09-30 | 1988-04-21 | ウエスチングハウス・エレクトリック・コーポレーション | Meter for ensuring alignment of turbine blade |
| CN88103005A (en) * | 1987-05-22 | 1988-12-21 | 西屋电气公司 | The row assemly of integrated type shrouded blade |
| CN2337549Y (en) * | 1998-09-11 | 1999-09-08 | 刘同州 | Magnetic air valve clearance measuring instrument |
| US20030147587A1 (en) * | 2002-02-05 | 2003-08-07 | Sheng-Jui Chao | Instrument and method for aligning optical collimators |
| CN2720400Y (en) * | 2004-08-27 | 2005-08-24 | 上海汽轮机有限公司 | Side-mounted blade radial-line measuring device |
| CN202329475U (en) * | 2011-12-08 | 2012-07-11 | 哈尔滨汽轮机厂有限责任公司 | Tool for measuring radiation deviation in process of assembling locking plate groove type blades of turbine rotor |
-
2011
- 2011-12-08 CN CN2011104063167A patent/CN102401621A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6390701A (en) * | 1986-09-30 | 1988-04-21 | ウエスチングハウス・エレクトリック・コーポレーション | Meter for ensuring alignment of turbine blade |
| CN88103005A (en) * | 1987-05-22 | 1988-12-21 | 西屋电气公司 | The row assemly of integrated type shrouded blade |
| CN2337549Y (en) * | 1998-09-11 | 1999-09-08 | 刘同州 | Magnetic air valve clearance measuring instrument |
| US20030147587A1 (en) * | 2002-02-05 | 2003-08-07 | Sheng-Jui Chao | Instrument and method for aligning optical collimators |
| CN2720400Y (en) * | 2004-08-27 | 2005-08-24 | 上海汽轮机有限公司 | Side-mounted blade radial-line measuring device |
| CN202329475U (en) * | 2011-12-08 | 2012-07-11 | 哈尔滨汽轮机厂有限责任公司 | Tool for measuring radiation deviation in process of assembling locking plate groove type blades of turbine rotor |
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Application publication date: 20120404 |
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| WD01 | Invention patent application deemed withdrawn after publication |