CN102829701B - Circle measuring frame for large-size hydro-generator rotor and use method thereof - Google Patents
Circle measuring frame for large-size hydro-generator rotor and use method thereof Download PDFInfo
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- CN102829701B CN102829701B CN201210343641.8A CN201210343641A CN102829701B CN 102829701 B CN102829701 B CN 102829701B CN 201210343641 A CN201210343641 A CN 201210343641A CN 102829701 B CN102829701 B CN 102829701B
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Abstract
The invention provides a circle measuring frame for a large-size hydro-generator rotor and a use method thereof, in order to solve the problem of the prior art that no testing tool can be used for measuring a radius of each point on an external circle of a pole of a hydro-generator rotor at any time during an assembling process. The circle measuring frame for the large-size hydro-generator rotor comprises a spindle connecting mechanism, a counterweight shaft, a counterweight, a horizontal supporting frame and a measuring arm. If the circle measuring frame for the large-size hydro-generator rotor provided by the invention is used for measuring the assembling of the hydro-generator rotor, the radius of the external circle of each pole can be measured at any time, the circular degree and the concentricity of the external circle of each pole are checked and the central height of the each pole and the central height of a stator are kept consistent. The circle measuring frame for the large-size hydro-generator rotor has the beneficial effects that the circular degree and the concentricity of the external circle of each pole during the assembling process of the rotor are ensured, the central height of each pole is ensured and the circle measuring frame plays an important role in ensuring the safe running of a machine set. Besides, the circle measuring frame has generality and can meet the requirements of the assembling of the hydro-generator rotors in various sizes.
Description
Technical field
The present invention relates to large-sized water turbine generator rotor mounting technology, specially refer to a kind of large-sized water turbine generator rotor and survey circle frame and using method thereof.
Background technology
In large-sized water turbine generator rotor operation process, gap between rotor and stator is very little, only has 8～40mm, and generator shaft wants rotor driven, water owner axle, runner etc. to rotate (weight of the general whole rotation of unit is more than 10 tons) with per minute hundreds of to thousands of speed turning together, if the roundness of external circle of rotor does not reach requirement, will be inhomogeneous with the gap of stator, in the rotary course of unit, will cause very large vibration, affect the generating of unit.If the inconsistent generating that also can affect unit of pole center height and stator center height; So, just seem very important of circularity, right alignment and the centre-height of rotor outer circle.
Conventionally, the tolerance of large-sized water turbine generator rotor diameter is generally in about 1mm, to ensure circularity and right alignment, and then the homogeneity in the gap of guarantee and stator, and pole center height is consistent with stator center height.Because the volume of large-sized water turbine generator rotor is larger, weight is also larger, therefore, is usually to assemble at scene, power station.Again because the size specification of hydrogenerator is different, do not have a kind of testing tool in assembling process, to measure at any time the radius of each point of magnet pole of rotor of hydraulic generator cylindrical, thereby the magnetic pole that constantly adjustment is being installed, make its circularity, right alignment and centre-height reach technical requirement, so the homogeneity of guarantee and stator gap and with the consistance of stator center height.
Summary of the invention
The problem that does not have a kind of testing tool to measure at any time the radius of each point of magnet pole of rotor of hydraulic generator cylindrical in assembling process for solving prior art, the present invention proposes a kind of large-sized water turbine generator rotor and surveys circle frame and using method thereof.
Large-sized water turbine generator rotor of the present invention is surveyed circle frame and is comprised main shaft bindiny mechanism, balancer shaft, counterweight, horizontal shore and gage beam, balancer shaft and horizontal shore symmetry are arranged on main shaft bindiny mechanism two ends, gage beam is arranged on the end of horizontal shore, main shaft bindiny mechanism comprises locating ring, lower locating ring, upper side bearing, lower side bearing, rolling leg and contour post, on, lower locating ring is fixed together and is sleeved on rotor main shaft by perpendicular muscle, upper side bearing is fixedly mounted on locating ring, lower side bearing is fixedly mounted on lower locating ring, rolling leg is fixedly mounted on the bottom of lower locating ring, contour post is arranged on the bottom of lower locating ring, described upper and lower side bearing is respectively 6 and is evenly distributed on circumference, and described rolling leg and contour post are respectively 6 settings corresponding to side bearing, and described perpendicular muscle is 12 and is evenly distributed on circumference.
Further, large-sized water turbine generator rotor of the present invention is surveyed circle frame and above horizontal shore, is provided with stay cord, and below is provided with inner support and outer support.
Further, the side bearing that large-sized water turbine generator rotor of the present invention is surveyed circle frame comprises gusseted, adjusting bolt and bearing, and wherein, gusseted is fixed on locating ring, and adjusting bolt is fixed in gusseted, and bearing is fixed on adjusting bolt front end.
Further, the rolling leg that large-sized water turbine generator rotor of the present invention is surveyed circle frame comprises support column, adjusting bolt and bearing, and wherein, bearing is arranged on the bottom of support column, and support column is fixed on lower locating ring by adjusting bolt.
Further, the contour column top of large-sized water turbine generator rotor survey circle frame of the present invention is provided with adjusting bolt.
Large-sized water turbine generator rotor of the present invention is surveyed circle frame using method, adopts large-sized water turbine generator rotor of the present invention to survey circle frame the assembling of hydraulic generator rotor is measured, and comprises the following steps:
S1: by adjusting bolt, side bearing is retracted to the shortest position, same, rolling leg is retracted to the shortest position;
S2: by adjusting bolt, contour post is adjusted to desired height, the height error between contour post should be in 0.05mm, and it is evenly placed on to rotor support hub end face;
S3: locating ring be sleeved on to rotor main shaft and be placed on contour post, and adjusting the position of locating ring, locating ring each side inner side is equated to the distance of main shaft cylindrical;
S4: regulate the adjusting bolt of each side bearing that the bearing of front end and main shaft cylindrical are adjacent to; If when main shaft ovality exceedes 0.04mm, need to adopt clearance gauge to adjust, can in not extruded situation, be as the criterion by maximum gauge place with all bearings;
S5: regulate the height of rolling leg to make it identical with the height of contour post;
S6: take off contour post, coat machine oil at rotor support hub end face, rotation locating ring also detects with dial gauge, require the rotating accuracy of locating ring within 0.05mm, otherwise repeated execution of steps S4, S5, until meets the demands;
S7: balancer shaft, counterweight and horizontal shore and stay cord and inside and outside support are installed; Install and measure arm, and on gage beam, dial gauge is installed;
S8: in rotor magnetic pole assembling process, gage beam is rotated around main shaft, measure at any time the exradius of each magnetic pole, the radius that the reading that to be main shaft cylindrical deduct dial gauge to the distance of dial gauge is added main shaft is exactly radius of a circle outside magnetic pole, thereby circularity, right alignment to each magnetic pole cylindrical check;
S9: after rotor magnetic pole assembling, first measure the centre-height of a certain magnetic pole, require deviation in ± 1.0mm, then dial gauge is aimed to the center of this magnetic pole, last wheel measuring arm checks the centre-height of each magnetic pole; After adjusting if check, still there is local height point to be polished off with emery wheel, thereby ensure that pole center height is consistent with stator center height.
The useful technique effect that large-sized water turbine generator rotor of the present invention is surveyed circle frame and using method thereof is the centre-height that has ensured circularity, right alignment and each magnetic pole of magnetic pole cylindrical in rotor assembling, for vital role has been brought into play in the safe operation of unit.And, there is versatility, can meet the needs of the hydraulic generator rotor assembling of Multiple Type specification.
Brief description of the drawings
The structural representation of facing that accompanying drawing 1 is large-sized water turbine generator rotor survey circle frame of the present invention;
Accompanying drawing 2 is the plan structure schematic diagram of large-sized water turbine generator rotor survey circle frame of the present invention;
Accompanying drawing 3 is the partial structurtes schematic diagram of large-sized water turbine generator rotor Ce Yuanjia main shaft of the present invention bindiny mechanism;
Accompanying drawing 4 is the partial structurtes schematic diagram of large-sized water turbine generator rotor survey circle frame side bearing of the present invention;
Accompanying drawing 5 is the partial structurtes schematic diagram of large-sized water turbine generator rotor survey circle frame rolling leg of the present invention and contour post;
Accompanying drawing 6 is the schematic diagram of large-sized water turbine generator rotor survey circle frame use state of the present invention.
Below in conjunction with the drawings and specific embodiments, large-sized water turbine generator rotor survey circle frame of the present invention and using method thereof are further described.
Embodiment
The structural representation of facing that accompanying drawing 1 is large-sized water turbine generator rotor survey circle frame of the present invention, accompanying drawing 2 is the plan structure schematic diagram of large-sized water turbine generator rotor survey circle frame of the present invention, accompanying drawing 3 is the partial structurtes schematic diagram of large-sized water turbine generator rotor Ce Yuanjia main shaft of the present invention bindiny mechanism, in figure, 1 is main shaft bindiny mechanism, 2 is balancer shaft, 3 is counterweight, 4 is horizontal shore, 5 is gage beam, 6 is generator amature main shaft, 101 is upper locating ring, 102 is lower locating ring, 103 is upper side bearing, 104 is lower side bearing, 105 is rolling leg, 106 is contour post, 107 is perpendicular muscle.As seen from the figure, large-sized water turbine generator rotor of the present invention is surveyed circle frame and is comprised main shaft bindiny mechanism 1, balancer shaft 2, counterweight 3, horizontal shore 4 and gage beam 5, balancer shaft 2 and horizontal shore 4 symmetries are arranged on main shaft bindiny mechanism 1 two ends, gage beam 5 is arranged on the end of horizontal shore 4, main shaft bindiny mechanism 1 comprises locating ring 101, lower locating ring 102, upper side bearing 103, lower side bearing 104, rolling leg 105 and contour post 106, on, lower locating ring (101, 102) be fixed together and be sleeved on rotor main shaft 6 by perpendicular muscle 107, upper side bearing 103 is fixedly mounted on locating ring 101, lower side bearing 104 is fixedly mounted on lower locating ring 102, rolling leg 105 is fixedly mounted on the bottom of lower locating ring 102, contour post 106 is arranged on the bottom of lower locating ring 102, described upper and lower side bearing (103,104) be respectively 6 and be evenly distributed on circumference, described rolling leg 105 and contour post 106 are respectively 6 and the corresponding setting of side bearing (103,104), and described perpendicular muscle 107 is 12 and is evenly distributed on circumference.Large-sized water turbine generator rotor of the present invention is surveyed circle frame and is adopted main shaft bindiny mechanism that horizontal shore and gage beam are arranged on generator amature main shaft and are equipped with counterweight to make it keep balance, ensure that gage beam can rotate round generator amature main shaft, monitors the assembling of rotor magnetic pole.From accompanying drawing 1 also, large-sized water turbine generator rotor of the present invention is surveyed circle frame and above horizontal shore 4, is provided with stay cord 401, below is provided with inner support 402 and outer support 403, not only ensure that horizontal shore is horizontal all the time, also ensured the verticality of horizontal shore and main shaft bindiny mechanism and gage beam.
Accompanying drawing 4 is the partial structurtes schematic diagram of large-sized water turbine generator rotor survey circle frame side bearing of the present invention, and in figure, 1031 is gusseted, and 1032 is adjusting bolt, and 1033 is bearing.As seen from the figure, the side bearing that large-sized water turbine generator rotor of the present invention is surveyed circle frame comprises gusseted 1031, adjusting bolt 1032 and bearing 1033, wherein, gusseted 1031 is fixed on locating ring (101,102) on, adjusting bolt 1032 is fixed in gusseted 1031, and bearing 1033 is fixed on adjusting bolt 1032 front ends.The side bearing that large-sized water turbine generator rotor of the present invention is surveyed circle frame is mainly used in locating ring to be movably fixed on generator shaft, and ensures that locating ring can rotate stably around generator shaft.The locating ring that the present invention surveys round frame is two, and adopts perpendicular muscle to link together, and side bearing is also two groups, is fixedly connected on respectively on upper and lower locating ring, and every group of side bearing is 6 and is evenly distributed on circumference.Such design has fully ensured that locating ring can accurate, firm being movably fixed on generator shaft, and can be firmly, rotate stably.It should be noted that the present invention survey round frame side bearing adopt adjusting bolt be fixedly connected with, make each side bearing all adjustable with respect to the locating ring center of circle, not only can regulate accurately the right alignment of locating ring and generator shaft, can also adapt to the generator shaft of different-diameter size, make large-sized water turbine generator rotor survey circle frame of the present invention can meet the needs of the hydraulic generator rotor assembling of different model specification.
Accompanying drawing 5 is the partial structurtes schematic diagram of large-sized water turbine generator rotor survey circle frame rolling leg of the present invention and contour post, and in figure, 1051 is bearing, and 1052 is support column, and 1053 is adjusting bolt, and 106 is contour post, and 1062 is adjusting bolt.As seen from the figure, the rolling leg that large-sized water turbine generator rotor of the present invention is surveyed circle frame comprises support column 1052, adjusting bolt 1053 and bearing 1051, wherein, bearing 1051 is arranged on the bottom of support column 1052, and support column 1052 is fixed on lower locating ring 102 by adjusting bolt 1053.For further improving stationarity and the steadiness of the rotation of main shaft bindiny mechanism, ensure that horizontal shore is all the time with the position rotation of level, the present invention surveys round frame and is specially provided with rolling leg in the bottom of lower locating ring, and setting corresponding to side bearing.Rolling leg has played effective supporting role, makes locating ring can not produce inclination because of bearing compared with large moment of torsion, thereby has ensured that horizontal shore rotates with the position of level all the time.From accompanying drawing 5 also, contour post 106 tops that large-sized water turbine generator rotor of the present invention is surveyed round frame are provided with adjusting bolt 1062.No matter needing special instruction is the adjusting bolt that contour column top arranges, still adopt adjusting bolt that rolling leg is fixed on lower locating ring, all that height in order to make contour post and rolling leg can regulate, can adapt to the generator shaft of different-diameter size, make large-sized water turbine generator rotor survey circle frame of the present invention can meet the needs of the hydraulic generator rotor assembling of different model specification.
Accompanying drawing 6 is the schematic diagram of large-sized water turbine generator rotor survey circle frame use state of the present invention.6 is known by reference to the accompanying drawings, and large-sized water turbine generator rotor of the present invention is surveyed circle frame using method, adopts large-sized water turbine generator rotor of the present invention to survey circle frame hydraulic generator rotor is assembled and measured, and comprises the following steps:
S1: by adjusting bolt, side bearing is retracted to the shortest position, same, rolling leg is retracted to the shortest position;
S2: by adjusting bolt, contour post is adjusted to desired height, the height error between contour post should be in 0.05mm, and it is evenly placed on to rotor support hub end face;
S3: locating ring be sleeved on to rotor main shaft and be placed on contour post, and adjusting the position of locating ring, locating ring each side inner side is equated to the distance of main shaft cylindrical;
S4: regulate the adjusting bolt of each side bearing that the bearing of front end and main shaft cylindrical are adjacent to; If when main shaft ovality exceedes 0.04mm, need to adopt clearance gauge to adjust, can in not extruded situation, be as the criterion by maximum gauge place with all bearings;
S5: regulate the height of rolling leg to make it identical with the height of contour post;
S6: take off contour post, coat machine oil at rotor support hub end face, rotation locating ring also detects with dial gauge, require the rotating accuracy of locating ring within 0.05mm, otherwise repeated execution of steps S4, S5, until meets the demands;
S7: balancer shaft, counterweight and horizontal shore and stay cord and inside and outside support are installed; Install and measure arm, and on gage beam, dial gauge is installed;
S8: in rotor magnetic pole assembling process, gage beam is rotated around main shaft, measure at any time the exradius of each magnetic pole, the radius that the reading that to be main shaft cylindrical deduct dial gauge to the distance of dial gauge is added main shaft is exactly radius of a circle outside magnetic pole, thereby circularity, right alignment to each magnetic pole cylindrical check;
S9: after rotor magnetic pole assembling, first measure the centre-height of a certain magnetic pole, require deviation in ± 1.0mm, then dial gauge is aimed to the center of this magnetic pole, last wheel measuring arm checks the centre-height of each magnetic pole; After adjusting if check, still there is local height point to be polished off with emery wheel, thereby ensure that pole center height is consistent with stator center height.
Obviously, the useful technique effect that large-sized water turbine generator rotor of the present invention is surveyed circle frame and using method thereof is the centre-height that has ensured circularity, right alignment and each magnetic pole of magnetic pole cylindrical in rotor assembling, for vital role has been brought into play in the safe operation of unit.And, there is versatility, can meet the needs of the hydraulic generator rotor assembling of Multiple Type specification.
Claims (6)
1. a large-sized water turbine generator rotor is surveyed circle frame, it is characterized in that: this survey circle frame comprises main shaft bindiny mechanism, balancer shaft, counterweight, horizontal shore and gage beam, balancer shaft and horizontal shore symmetry are arranged on main shaft bindiny mechanism two ends, gage beam is arranged on the end of horizontal shore, main shaft bindiny mechanism comprises locating ring, lower locating ring, upper side bearing, lower side bearing, rolling leg and contour post, on, lower locating ring is fixed together and is sleeved on rotor main shaft by perpendicular muscle, upper side bearing is fixedly mounted on locating ring, lower side bearing is fixedly mounted on lower locating ring, rolling leg is fixedly mounted on the bottom of lower locating ring, contour post is arranged on the bottom of lower locating ring, described upper and lower side bearing is respectively 6 and is evenly distributed on circumference, and described rolling leg and contour post are respectively 6 settings corresponding to side bearing, and described perpendicular muscle is 12 and is evenly distributed on circumference.
2. large-sized water turbine generator rotor is surveyed circle frame according to claim 1, it is characterized in that: above horizontal shore, be provided with stay cord, below is provided with inner support and outer support.
3. large-sized water turbine generator rotor is surveyed circle frame according to claim 1, it is characterized in that: side bearing comprises gusseted, adjusting bolt and bearing, wherein, gusseted is fixed on locating ring, adjusting bolt is fixed in gusseted, and bearing is fixed on adjusting bolt front end.
4. large-sized water turbine generator rotor is surveyed circle frame according to claim 1, it is characterized in that: rolling leg comprises support column, adjusting bolt and bearing, and wherein, bearing is arranged on the bottom of support column, and support column is fixed on lower locating ring by adjusting bolt.
5. large-sized water turbine generator rotor is surveyed circle frame according to claim 1, it is characterized in that: contour column top is provided with adjusting bolt.
6. large-sized water turbine generator rotor is surveyed a circle frame using method, it is characterized in that: described in employing claim 1, large-sized water turbine generator rotor survey circle frame is measured the assembling of hydraulic generator rotor, comprises the following steps:
S1: by adjusting bolt, side bearing is retracted to the shortest position, same, rolling leg is retracted to the shortest position;
S2: by adjusting bolt, contour post is adjusted to desired height, the height error between contour post should be in 0.05mm, and it is evenly placed on to rotor support hub end face;
S3: locating ring be sleeved on to rotor main shaft and be placed on contour post, and adjusting the position of locating ring, locating ring each side inner side is equated to the distance of main shaft cylindrical;
S4: regulate the adjusting bolt of each side bearing that the bearing of front end and main shaft cylindrical are adjacent to; If when main shaft ovality exceedes 0.04mm, need to adopt clearance gauge to adjust, can in not extruded situation, be as the criterion by maximum gauge place with all bearings;
S5: regulate the height of rolling leg to make it identical with the height of contour post;
S6: take off contour post, coat machine oil at rotor support hub end face, rotation locating ring also detects with dial gauge, require the rotating accuracy of locating ring within 0.05mm, otherwise repeated execution of steps S4, S5, until meets the demands;
S7: balancer shaft, counterweight and horizontal shore and stay cord and inside and outside support are installed; Install and measure arm, and on gage beam, dial gauge is installed;
S8: in rotor magnetic pole assembling process, gage beam is rotated around main shaft, measure at any time the exradius of each magnetic pole, the radius that the reading that to be main shaft cylindrical deduct dial gauge to the distance of dial gauge is added main shaft is exactly radius of a circle outside magnetic pole, thereby circularity, right alignment to each magnetic pole cylindrical check;
S9: after rotor magnetic pole assembling, first measure the centre-height of a certain magnetic pole, require deviation in ± 1.0mm, then dial gauge is aimed to the center of this magnetic pole, last wheel measuring arm checks the centre-height of each magnetic pole; After adjusting if check, still there is local height point to be polished off with emery wheel, thereby ensure that pole center height is consistent with stator center height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210343641.8A CN102829701B (en) | 2012-09-17 | 2012-09-17 | Circle measuring frame for large-size hydro-generator rotor and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210343641.8A CN102829701B (en) | 2012-09-17 | 2012-09-17 | Circle measuring frame for large-size hydro-generator rotor and use method thereof |
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| CN102829701A CN102829701A (en) | 2012-12-19 |
| CN102829701B true CN102829701B (en) | 2014-12-10 |
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| CN201210343641.8A Expired - Fee Related CN102829701B (en) | 2012-09-17 | 2012-09-17 | Circle measuring frame for large-size hydro-generator rotor and use method thereof |
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| CN103954210B (en) * | 2014-05-21 | 2015-06-03 | 中国葛洲坝集团股份有限公司 | Measuring device and method of automatic non-contact hydro-generator rotor roundness |
| CN105135993A (en) * | 2015-08-27 | 2015-12-09 | 哈尔滨电机厂有限责任公司 | Turbine generator rotor assembly roundness measuring device |
| CN107024164A (en) * | 2017-05-17 | 2017-08-08 | 广西桂冠电力股份有限公司大化水力发电总厂 | Hydroelectric generating set rotor surveys circle method and surveys circle device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3881292B2 (en) * | 2002-08-22 | 2007-02-14 | 住友ゴム工業株式会社 | N-order correction method for RRO of wheel rim |
| CN201207601Y (en) * | 2008-05-07 | 2009-03-11 | 天津市天发重型水电设备制造有限公司 | Measurement device for rotor assembly of vertical type hydro-turbo generator set |
| CN201653335U (en) * | 2010-06-29 | 2010-11-24 | 太平湾发电厂 | Automatic roundness measurement device for hydroelectric generating set |
| CN202770377U (en) * | 2012-09-17 | 2013-03-06 | 重庆水轮机厂有限责任公司 | Roundness measuring frame for rotors of large hydrogenerator |
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Granted publication date: 20141210 Termination date: 20170917 |