CN2855644Y - Alignment device for turbine blading ring and air sealing unit - Google Patents
Alignment device for turbine blading ring and air sealing unit Download PDFInfo
- Publication number
- CN2855644Y CN2855644Y CN 200520036475 CN200520036475U CN2855644Y CN 2855644 Y CN2855644 Y CN 2855644Y CN 200520036475 CN200520036475 CN 200520036475 CN 200520036475 U CN200520036475 U CN 200520036475U CN 2855644 Y CN2855644 Y CN 2855644Y
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- driver
- rotating shaft
- centering apparatus
- work top
- shaft
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Abstract
The utility model provides a device for determining the center lines of a turbine leaf ring and a gas sealing body of a gas turbine, comprising a working table and a workpieces clamp that is arranged on the surface of the working table. It is characterized in that the utility model additionally comprises a measuring device and a mechanism for adjusting the position . The measuring mechanism comprises a shaft and a driving device of the shaft. The shaft is provided with a measuring rod that is perpendicular to the shaft. The end of the measuring rod is provided with a measuring head. One end of the shaft is provided with a bearing seat, the axial end face of which is matched with the surface of the working table by sliding. The shaft is perpendicular to the surface of the working table. The mechanism for adjusting the position comprises a plurality of displacement driving devices, which are fixed on the surface of the working table, and at the same time are distributed around the bearing seat in symmetry and in the opposite direction. The driving rod of the displacement driving device props the lateral side of the bearing seat. The utility model has advantages that the result of the determination of the center lines is true and reliable with high concentricity, convenient and quick operation and high working efficiency.
Description
Technical field
The utility model relates to the mounting technology of gas turbine, and a kind of frock of using when relating in particular to the gas turbine assembling is used for turbine leaf joint, the air sealing of gas turbine are looked for.
Background technology
Turbine leaf joint and air sealing are two big stationary parts of gas turbine, must be with middle assembling, and its concentricity will directly influence the performance of gas turbine.The same with other stationary parts, turbine leaf joint and air sealing also are the upper and lower half hitch structures at the split subdivision, and upper and lower half by the bolt connection, constitutes integral ring-shaped parts.Fig. 4 shows the structure and the matching relationship of turbine leaf joint and air sealing: air sealing I inserts the mounting groove of turbine leaf joint IV, in order to adjust the concentricity of two parts, at turbine leaf joint IV lower half to being furnished with several cam pin III, air sealing I is provided with the guide II that cooperates with cam pin III, by rotate respectively each cam pin III adjust turbine leaf joint IV and air sealing I with in, after adjusting, with cam pin III spot welding, loosening to prevent it, keep the concentricity of two parts constant.During assembling, look for again behind the cylinder if two parts are respectively charged into, must with the armature spindle benchmark, because cam pin III is provided in a side of two parts second, stopped by rotor, can't adjust, therefore, must be earlier cylinder outside that turbine leaf joint IV is concentric with air sealing I adjustment, after second spot welding of two parts is located, the integral body cylinder of packing into again.
Outside cylinder that the turbine leaf joint is concentric with air sealing I adjustment, special tooling must be arranged.But the frock of using is very simple and crude at present, it comprises a platform, work piece holder is arranged on the platform, workpiece is flat to be horizontally-arranged on the platform, anchor clamps are fixed turbine leaf joint IV, by adjust cam pin III make air sealing I and turbine leaf joint IV with in, its detection means is the gap size of measurement turbine leaf joint IV and the circumferential each point of air sealing I, by judging its concentricity to the gap size of each test point is whether consistent.Its shortcoming is:
1. detection method is unreasonable, and not having can be for the center reference of turbine leaf joint IV and the common reference of air sealing I; The detection technique means fall behind, and influence such as the error in reading of the quantity of the examined point of certainty of measurement and distribution situation thereof, each measurement point is very big, and the concentricity that obtains thus is untrue;
2. measurement point is a lot, measures, adjustment cycle is long, operate loaded down with trivial details, time-consuming, repeated measurement many times and adjustment, inefficiency, labor strength is big.
Summary of the invention
The purpose of this utility model provides a kind of high accuracy, turbine leaf joint, air sealing convenient to operation device in looking for, and its technical solution is:
A kind of gas turbine turbine leaf joint, air sealing centering apparatus, this device comprise workbench and are arranged in work piece holder on the work top, it is characterized in that: also comprise measurement mechanism and position adjusting mechanism thereof; Described measurement mechanism comprises rotating shaft and driver thereof, and this rotating shaft has a vertical with it measuring stick, and there is gage outfit the end of measuring stick, and an end of rotating shaft has bearing block, and the axial end and the work top of bearing block are slidingly matched, and rotating shaft is vertical with work top; Described position adjusting mechanism comprises several displacement driver, and this displacement driver is fixed on the work top, and symmetry is arranged in around the bearing block in opposite directions, and its drive rod withstands the side of bearing block.
Described displacement driver is hydraulic cylinder/cylinder/screw jack.
The driver of described rotating shaft is a handwheel, and this handwheel is fixedlyed connected with the end of rotating shaft; The driver of described rotating shaft is motor also, the motor connection reducer, and decelerator connects rotating shaft; Described decelerator is gear/sprocket wheel/worm gear reducer.
Described gage outfit is length measurer dial gauge or amesdial or differential table; Described gage outfit is linear displacement transducer also, and sensor connects display.
Described anchor clamps comprise dop, guide rail, driver, and guide rail is fixed on the work top, and dop is contained on the guide rail and with guide rail and is slidingly matched, and driver is fixed on the workbench, and its output connects dop; Described driver is hydraulic cylinder/cylinder/screw jack; Screw jack can adopt manual drives, also can adopt Motor Drive.
Be vertical plane on the working face of described workbench, the lower disposed of work top has workpiece support, and workpiece support is provided with the Workpiece leveling screw rod.
Technique effect of the present utility model:
1. owing to be provided with measurement mechanism, having can be for the center reference of turbine leaf joint and the common reference of air sealing, and process is the running status of simulation workpiece in looking for, and measuring method is scientific and reasonable, and the result in looking for is realistic, and is true and reliable;
2. owing to be continuous measurement circumference each point, and measured value is that numerical value shows, avoided artificial error in reading, and the result is accurate in looking for, the concentricity height of turbine leaf joint, air sealing;
3. owing to the middle process of looking for of measurement mechanism and turbine leaf joint is carried out automatically, convenient and swift, high efficiency.
Description of drawings
Fig. 1 is a kind of structural representation (vertical) of this device
Fig. 2 is the A-A view of Fig. 1
Fig. 3 is the another kind of structural representation (horizontal) of this device
Fig. 4 is turbine leaf joint and air sealing assembly structure schematic diagram
The specific embodiment
This device is vertical, also horizontal.Vertical structure is referring to Fig. 1, Fig. 2: workbench 1 vertically is arranged on the basis, its work top is perpendicular to the ground, measurement mechanism is arranged vertically on work top, be cantilever design, the axial end and the work top of bearing block 9 are slidingly matched, be furnished with two pairs of screw drivers around the bearing block 9, in level, vertical direction symmetry, arrange in opposite directions, be used to adjust the position of bearing block 9 on work top, the threaded block 7 of screw driver is fixed on the work top, and threaded mandrel 6 cooperates with threaded block 7.This screw driver manually, also can be mixed drive motors, constitutes the electric screw driver, so that realize the automatic control to the adjustment of measurement mechanism position, certainly, this driver also can adopt hydraulic cylinder or cylinder (as shown in Figure 3).One end of rotating shaft 10 is supported in the bearing block 9 by the bearing (not shown), and the other end is provided with handwheel 8, is used to drive rotating shaft 10 and rotates; Rotating shaft 10 also can be adopted motor-driven (as shown in Figure 3), and motor 18 is fixed on the bearing block 9, rotates by worm screw 17, worm gear 16 deceleration transmission rotating shafts 10, and deceleration transmission also can adopt gear or sprocket wheel to replace worm screw 17, worm gear 16.One end of measuring stick 5 is fixed in the rotating shaft 10, the other end is provided with gage outfit 14, the distance that is used for measuring workpieces 13 test points and measurement mechanism pivot, gage outfit 14 can adopt for example dial gauge of length measurer, but preferably adopt linear displacement transducer, length signals is converted to numerical signal intuitively shows, can avoid error in reading, be convenient to realize automatic control simultaneously at display screen.Workpiece 13 anchor clamps are made up of dop 4, guide rail 3, driver 2, and guide rail 3 is fixed on the work top, and dop 4 is slidingly matched with guide rail 3, and the output shaft of driver 2 is connected with dop 4; Driver 2 can adopt hydraulic cylinder or cylinder, also can adopt electronic or manual screw driver.Workpiece support 12 is fixed on the bottom of work top, and bearing 12 is provided with Workpiece leveling screw 11, is used for workpiece 13 is adjusted to parallel with work top.
Horizontal type structure is referring to Fig. 3, and with vertical difference be: work top is horizontally disposed, does not have workpiece support, and anchor clamps change three dops into, and symmetry arranges that in opposite directions all the other repeat no more with vertical identical around workpiece 13.
The using method of this device comprises two big steps:
Step 1
With turbine leaf joint IV, air sealing I places on the workbench, fix turbine leaf joint IV (if vertical with anchor clamps, then must with levelling bolt 11 turbine leaf joint IV be adjusted earlier, make it parallel with work top, perpendicular to the ground), gage outfit 14 is aimed at any one periphery of turbine leaf joint IV, rotating shaft 10, gage outfit 14 is along the displacement of turbine leaf joint IV measured circle side face, the distance of pointwise continuous detecting circumference each point and measurement mechanism pivot, if the each point distance has difference, then utilize guiding mechanism to adjust measurement mechanism in the position on work top, measured value until the circumference each point equates that at this moment, the pivot of measurement mechanism promptly overlaps with the center of turbine leaf joint IV.
If the driver of guiding mechanism and spindle driver are not manual, above-mentioned adjustment process is carried out automatically, if the each point distance has difference, robot control system(RCS) output control signal, the position of measurement mechanism on work top adjusted in the driver action of position adjusting mechanism, and be equal until the measured value of circumference each point, at this moment, the pivot of measurement mechanism promptly overlaps with the center of turbine leaf joint IV.
Measurement mechanism is fixing no longer mobile, gage outfit 14 is aimed at any one periphery of air sealing I, rotating shaft 10, gage outfit 14 is along the displacement of air sealing I measured circle side face, the distance of pointwise continuous detecting circumference each point and measurement mechanism pivot, if the each point distance has difference, then adjust the cam pin III among Fig. 4 manually, equal until the measured value of circumference each point, at this moment, the center of air sealing I promptly overlaps with the pivot of measurement mechanism, and is also just concentric with turbine leaf joint IV.
Claims (10)
1. a gas turbine turbine leaf joint, air sealing centering apparatus comprise workbench and are arranged in work piece holder on the work top, it is characterized in that: also comprise measurement mechanism and position adjusting mechanism thereof; Described measurement mechanism comprises rotating shaft and driver thereof, and this rotating shaft has a vertical with it measuring stick, and there is gage outfit the end of measuring stick, and an end of rotating shaft has bearing block, and the axial end and the work top of bearing block are slidingly matched, and rotating shaft is vertical with work top; Described position adjusting mechanism comprises several displacement driver, and this displacement driver is fixed on the work top, and symmetry is arranged in around the bearing block in opposite directions, and its drive rod withstands the side of bearing block.
2. centering apparatus according to claim 1 is characterized in that: described displacement driver is hydraulic cylinder/cylinder/screw jack.
3. centering apparatus according to claim 1 is characterized in that: the driver of described rotating shaft is a handwheel, and this handwheel is fixedlyed connected with the end of rotating shaft.
4. centering apparatus according to claim 1 is characterized in that: the driver of described rotating shaft is a motor, the motor connection reducer, and decelerator connects rotating shaft.
5. centering apparatus according to claim 4 is characterized in that: described decelerator is gear/sprocket wheel/worm gear reducer.
6. centering apparatus according to claim 1 is characterized in that: described gage outfit is length measurer dial gauge/amesdial/differential table.
7. centering apparatus according to claim 1 is characterized in that: described gage outfit is a linear displacement transducer, and sensor connects display.
8. centering apparatus according to claim 1, it is characterized in that: described anchor clamps comprise dop, guide rail, driver, and guide rail is fixed on the work top, and dop is contained on the guide rail and with guide rail and is slidingly matched, driver is fixed on the workbench, and its output connects dop.
9. centering apparatus according to claim 8 is characterized in that: described driver is hydraulic cylinder/cylinder/screw jack.
10. centering apparatus according to claim 1 is characterized in that: be vertical plane on the working face of described workbench, the lower disposed of work top has workpiece support, and workpiece support is provided with the Workpiece leveling screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036475 CN2855644Y (en) | 2005-12-14 | 2005-12-14 | Alignment device for turbine blading ring and air sealing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036475 CN2855644Y (en) | 2005-12-14 | 2005-12-14 | Alignment device for turbine blading ring and air sealing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2855644Y true CN2855644Y (en) | 2007-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520036475 Expired - Lifetime CN2855644Y (en) | 2005-12-14 | 2005-12-14 | Alignment device for turbine blading ring and air sealing unit |
Country Status (1)
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| CN (1) | CN2855644Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226049A (en) * | 2013-04-11 | 2013-07-31 | 山西晋城无烟煤矿业集团有限责任公司 | Backstop torque detection method and device of backstop carrier roller |
| CN105403131A (en) * | 2015-12-11 | 2016-03-16 | 东方电气集团东方汽轮机有限公司 | Upper half and lower half flow passage separate centering method for rotation machinery |
| CN106759346A (en) * | 2016-12-26 | 2017-05-31 | 中铁二局集团有限公司 | A kind of sheltered reverse excavation steel pipe column positioning device and preparation method |
| CN108818357A (en) * | 2018-08-13 | 2018-11-16 | 大连洁能重工股份有限公司 | A kind of device for the filter element replacing transhipment unit installation aligning that gives up |
| CN111120015A (en) * | 2019-12-27 | 2020-05-08 | 浙江浙能技术研究院有限公司 | Real-time monitoring system and monitoring method for eccentric swing of 50MW steam turbine cylinder body |
-
2005
- 2005-12-14 CN CN 200520036475 patent/CN2855644Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226049A (en) * | 2013-04-11 | 2013-07-31 | 山西晋城无烟煤矿业集团有限责任公司 | Backstop torque detection method and device of backstop carrier roller |
| CN105403131A (en) * | 2015-12-11 | 2016-03-16 | 东方电气集团东方汽轮机有限公司 | Upper half and lower half flow passage separate centering method for rotation machinery |
| CN105403131B (en) * | 2015-12-11 | 2017-11-17 | 东方电气集团东方汽轮机有限公司 | One kind rotates the class mechanically through-flow separately alignment method of lower half |
| CN106759346A (en) * | 2016-12-26 | 2017-05-31 | 中铁二局集团有限公司 | A kind of sheltered reverse excavation steel pipe column positioning device and preparation method |
| CN106759346B (en) * | 2016-12-26 | 2019-09-03 | 中铁二局集团有限公司 | A kind of sheltered reverse excavation steel pipe column positioning device and production method |
| CN108818357A (en) * | 2018-08-13 | 2018-11-16 | 大连洁能重工股份有限公司 | A kind of device for the filter element replacing transhipment unit installation aligning that gives up |
| CN111120015A (en) * | 2019-12-27 | 2020-05-08 | 浙江浙能技术研究院有限公司 | Real-time monitoring system and monitoring method for eccentric swing of 50MW steam turbine cylinder body |
| CN111120015B (en) * | 2019-12-27 | 2022-04-29 | 浙江浙能技术研究院有限公司 | Real-time monitoring system and monitoring method for eccentric swing of 50MW steam turbine cylinder body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGFANG ELECTRIC GROUP DONGFANG STEAM TURBINE CO. Free format text: FORMER NAME OR ADDRESS: DONGFAN STEAM TURBINE FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 618201 Deyang City, Sichuan Province town of Hanwang Patentee after: Dongfang Turbine Co., Ltd., Dongfang Electric Group Address before: 618201 Deyang City, Sichuan Province town of Hanwang Patentee before: Dongfang Steam Turbine Plant |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070110 |
|
| EXPY | Termination of patent right or utility model |