CN102974994A - Method for installing and positioning mega nuclear power stator spring plate - Google Patents
Method for installing and positioning mega nuclear power stator spring plate Download PDFInfo
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- CN102974994A CN102974994A CN2012105076050A CN201210507605A CN102974994A CN 102974994 A CN102974994 A CN 102974994A CN 2012105076050 A CN2012105076050 A CN 2012105076050A CN 201210507605 A CN201210507605 A CN 201210507605A CN 102974994 A CN102974994 A CN 102974994A
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- latch plate
- inner stator
- latch
- hole
- stator
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Abstract
The invention provides a method for installing and positioning a mega nuclear power stator spring plate. The method comprises the following steps of: positioning and connecting each spring plate to an inner stator by using three pin bolts; fixing the other holes in each spring plate on the inner stator by using product bolts; and replacing the three pin bolts on each spring plate with the product bolts to complete assembly of all spring plates with the inner stator. Due to the adoption of the method provided by the invention, the defects existing in the prior art are overcome; and the method has the advantages of high positioning accuracy, safety, reliability, increase in the production efficiency, reduction in the labor strength, easiness, practicability, high universality and convenience in operating.
Description
Technical field
The present invention relates to a kind of installation and locating method of 1,000,000 grades of nuclear power stator latch plates, belong to technology field in the generator assembling process.
Background technology
1100MW level nuclear energy steam turbine generator is the successfully larger steam turbine generator product of independent research of present China, and the stator of this product is installed by inside and outside stator on project organization and consists of, and is formed by connecting by latch plate between inner stator and the outer frame.Latch plate divides two kinds, i.e. big spring plate and submissile spring plank.Wherein the submissile spring plank is positioned at the cylindrical of inner stator bottom, has just finished on subring cage weldment decided at the higher level but not officially announced and has installed and welding, after waiting inner stator to install to finish again with outer frame bottom inner circle on the fixing welding of support plate, do not have problems.And key is the big spring plate that is positioned at the inner stator left and right sides, after inner stator is finished closed assembly unshakable in one's determination, stator built-in line, before inner stator installs, the top of big spring plate is fixed on the inner stator, Deng inner stator install finish after, the bottom of big spring plate again with outer frame on the spring panel seat be linked and packed and weld.
When latch plate is installed at inner stator, all latch plates of generator inner stator the same side (every side has 11 latch plates) are difficult to guarantee to be installed in the same level height, if not at the same level height, after inner stator pierces into outer frame, screw on unthreaded hole under the latch plate on the position and the outer frame upper spring panel seat can misplace, and (having 154 assembly connection holes) can not successfully be linked and packed.
Summary of the invention
The technical problem to be solved in the present invention provides the installation and locating method that a kind of installation site is accurate, enhance productivity, reduce labor intensity, guarantee 1,000,000 grades of nuclear power stator latch plates of product quality, highly versatile.
In order to solve the problems of the technologies described above, technical scheme of the present invention provides a kind of installation and locating method of 1,000,000 grades of nuclear power stator latch plates, it is characterized in that: the method is comprised of following 8 steps:
Step 1: make the pin bolt;
The overall structure of pin bolt for being connected to form successively by threaded portion, column part and turret head part, diameter dimension: threaded portion≤column part＜turret head part; The diameter dimension of column part is than the little 0.02～0.05mm of diameter dimension in hole on the latch plate;
Step 2: on the periphery on the left side of inner stator or right side, first latch plate is installed;
With the place, the 3rd hole of the first hole, the second hole and the second row middle at first row two ends, latch plate top, be located on the periphery on the left side of inner stator or right side by the pin bolt respectively;
Step 3: all the other latch plates that homonymy is installed with the method in the step 2;
Step 4: all the other connection holes between latch plate and the inner stator are fixed with the product bolt;
Step 5: check that every latch plate axial location size is qualified; If defective, pull down latch plate, return step 2;
Step 6: with 3 pin bolts on every latch plate of product bolt replacement;
Step 7: the latch plate that the inner stator opposite side is installed according to step 2～step 6;
Step 8: whole latch plates are fixedly welded on the inner stator.
Because latch plate is when single-piece work, the connecting hole on it has the position degree requirement; During in like manner inner stator single-piece work, also there is the position degree requirement in the hole that is connected with all latch plates on it; And the diametric clearance that 5mm is arranged between the unthreaded hole on the latch plate and the screw that is linked and packed, so method provided by the invention, by special pin bolt, latch plate installation site on inner stator is accurate, after inner stator installs, institute on latch plate bottom hole and the outer frame inner spring panel seat is porose can corresponding being linked and packed in dislocation-free ground, thereby finish being linked and packed of inner stator and outer frame.
The installation and locating method of 1,000,000 grades of nuclear power stator latch plates provided by the invention has been guaranteed the position degree that latch plate is installed, thereby realized that inner stator is reduced to disposable wearing and dresses up merit by installing for original twice, saved the time that installs of interior external stator, alleviated operator's labour intensity, guaranteed product quality, improved production efficiency, and highly versatile.
Method provided by the invention has overcome the deficiencies in the prior art, and positioning accuracy is high, and is safe and reliable, improved production efficiency, alleviated labour intensity, and simple and practical, highly versatile, easy to operate.
Description of drawings
Fig. 1 is pin bolt arrangement schematic diagram;
Fig. 2 is pin bolt installation site schematic diagram on the latch plate;
Fig. 3 is the installation diagram of latch plate and inner stator;
Description of reference numerals
1-the first hole; 2-the second hole; 3-the 3rd hole; The 4-threaded portion; The 5-column part; 6-turret head part.
The specific embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
The installation and locating method of a kind of 1,000,000 grades of nuclear power stator latch plates provided by the invention is comprised of following 8 steps:
Step 1: make the pin bolt.
In conjunction with Fig. 1, the overall structure of pin bolt for being connected to form successively by threaded portion 4, column part 5 and turret head part 6, diameter dimension: threaded portion≤column part＜turret head part; The diameter dimension of column part is than the little 0.02～0.05mm of diameter dimension in hole on the latch plate.If latch plate is Φ 35mm, then selling the bolt column part is Φ 34.95mm～Φ 34.98mm.Threaded portion on the pin bolt is with inner stator connecting thread hole M30.Need 33 on this pin bolt of first processing and fabricating, because be each piece latch plate when using with 3 pin bolts, each side has 11 latch plates, just needs to amount to 33 when a certain side latch plate is installed so and sells bolts.
When latch plate and inner stator assembling, the column part on the pin bolt plays the role of positioning, and threaded portion plays connection function, and hexagon-head then is used for using torque spanner to tighten the pin bolt.That is to say that the pin bolt not only plays the role of positioning but also play connection function in assembling.
Step 2: on the periphery on the left side of inner stator or right side, first latch plate is installed.
In conjunction with Fig. 2, with 3 places, the 3rd hole of the first hole 1, the second hole 2 and the second row middle at first row two ends, latch plate top, be bolted on the periphery on the left side of inner stator or right side by pin respectively.These 3 accurate locations of just determining latch plate.
Step 3: all the other latch plates that homonymy is installed with the method in the step 2.
Step 4: all the other connection holes between latch plate and the inner stator are fixed with the product bolt, and moment is on request tightened the product bolt.
Step 5: check that every latch plate axial location size is qualified; If defective, pull down latch plate, return step 2;
Step 6: with 3 pin bolts on every latch plate of product bolt replacement, moment is on request tightened the product bolt.
Step 7: the latch plate that the inner stator opposite side is installed according to step 2～step 6;
Step 8: in conjunction with Fig. 3, whole latch plates are fixedly welded on the inner stator.
The installation and locating method of a kind of 1,000,000 grades of nuclear power stator latch plates provided by the invention can guarantee the reasons are as follows of accuracy of latch plate installation site:
(1) since latch plate when single-piece work, the connecting hole on it has the position degree requirement, is Digit Control Machine Tool processing, can guarantee position and the dimensional accuracy in hole;
(2) during the inner stator single-piece work, there is the position degree requirement in the hole that is connected with all latch plates on its periphery, in the processing that Digit Control Machine Tool carries out, can guarantee position and the dimensional accuracy in hole;
(3) during the outer frame single-piece work, there is the position degree requirement in the hole that is connected with all latch plates on its spring panel seat, in the processing that Digit Control Machine Tool carries out, can guarantee position and the dimensional accuracy in hole;
(4) adopted the higher pin bolt of positioning accuracy to position;
(5) diametric clearance of 5mm is arranged between the unthreaded hole on the latch plate and the screw that is linked and packed.
So use method provided by the invention, can guarantee that all latch plates of the same side are all at the peer-level height, and guarantee latch plate on inner stator the installation site accurately, after inner stator installs, institute on latch plate bottom hole and the outer frame inner spring panel seat porose also just can dislocation-free corresponding being linked and packed, thereby finish being linked and packed of inner stator and outer frame.
The installation and locating method of a kind of 1,000,000 grades of nuclear energy stator of steam turbine generator latch plates provided by the invention, by pin bolt simple in structure, position degree is difficult when having solved the most latch plates installation of measuring of stator guarantees a conforming difficult problem, and operates easily.
Claims (1)
1. the installation and locating method of 1,000,000 grades of nuclear power stator latch plates, it is characterized in that: the method is comprised of following 8 steps:
Step 1: make the pin bolt;
The overall structure of pin bolt for being connected to form successively by threaded portion (4), column part (5) and turret head part (6), diameter dimension: threaded portion≤column part＜turret head part; The diameter dimension of column part is than the little 0.02～0.05mm of diameter dimension in hole on the latch plate;
Step 2: on the periphery on the left side of inner stator or right side, first latch plate is installed;
The 3rd hole (3) of the first hole (1), the second hole (2) and the second row middle at first row two ends, latch plate top is located, be located on the periphery on the left side of inner stator or right side by the pin bolt respectively;
Step 3: all the other latch plates that homonymy is installed with the method in the step 2;
Step 4: all the other connection holes between latch plate and the inner stator are fixed with the product bolt;
Step 5: check that every latch plate axial location size is qualified; If defective, pull down latch plate, return step 2;
Step 6: with 3 pin bolts on every latch plate of product bolt replacement;
Step 7: the latch plate that the inner stator opposite side is installed according to step 2～step 6;
Step 8: whole latch plates are fixedly welded on the inner stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507605.0A CN102974994B (en) | 2012-11-30 | 2012-11-30 | Method for installing and positioning mega nuclear power stator spring plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507605.0A CN102974994B (en) | 2012-11-30 | 2012-11-30 | Method for installing and positioning mega nuclear power stator spring plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974994A true CN102974994A (en) | 2013-03-20 |
| CN102974994B CN102974994B (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210507605.0A Active CN102974994B (en) | 2012-11-30 | 2012-11-30 | Method for installing and positioning mega nuclear power stator spring plate |
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| Country | Link |
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| CN (1) | CN102974994B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398759A (en) * | 2018-09-17 | 2019-03-01 | 上海航天设备制造总厂有限公司 | A kind of driving mechanism is insulated precision control device and its installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH547568A (en) * | 1972-01-24 | 1974-03-29 | Gen Electric | HOLDING DEVICE FOR THE STATOR OF A DYNAMOELECTRIC MACHINE. |
| CN1251225A (en) * | 1997-03-27 | 2000-04-19 | 西门子公司 | Device for supporting stator of electric machine, especially turbo generator |
| CN2428906Y (en) * | 2000-06-19 | 2001-05-02 | 于洪涛 | Arc-shape spring board for end part of stator of turbine generator |
| US20100244618A1 (en) * | 2009-03-25 | 2010-09-30 | Mitsubishi Electric Corporation | Stator for electric rotating machine |
-
2012
- 2012-11-30 CN CN201210507605.0A patent/CN102974994B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH547568A (en) * | 1972-01-24 | 1974-03-29 | Gen Electric | HOLDING DEVICE FOR THE STATOR OF A DYNAMOELECTRIC MACHINE. |
| CN1251225A (en) * | 1997-03-27 | 2000-04-19 | 西门子公司 | Device for supporting stator of electric machine, especially turbo generator |
| CN2428906Y (en) * | 2000-06-19 | 2001-05-02 | 于洪涛 | Arc-shape spring board for end part of stator of turbine generator |
| US20100244618A1 (en) * | 2009-03-25 | 2010-09-30 | Mitsubishi Electric Corporation | Stator for electric rotating machine |
Non-Patent Citations (2)
| Title |
|---|
| 刘佩荣: "1100MW级核能发电机内定子穿装工艺", 《东方电机》 * |
| 李云峰: "600MW汽轮发电机内外机座型弹簧板装配", 《东方电机》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398759A (en) * | 2018-09-17 | 2019-03-01 | 上海航天设备制造总厂有限公司 | A kind of driving mechanism is insulated precision control device and its installation method |
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| Publication number | Publication date |
|---|---|
| CN102974994B (en) | 2014-11-26 |
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