CN202770377U - Roundness measuring frame for rotors of large hydrogenerator - Google Patents
Roundness measuring frame for rotors of large hydrogenerator Download PDFInfo
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- CN202770377U CN202770377U CN 201220472268 CN201220472268U CN202770377U CN 202770377 U CN202770377 U CN 202770377U CN 201220472268 CN201220472268 CN 201220472268 CN 201220472268 U CN201220472268 U CN 201220472268U CN 202770377 U CN202770377 U CN 202770377U
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- water turbine
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- turbine generator
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Abstract
For solving the problem of lack of a detection tool capable of measuring the radius of each point on the external circle of a rotor magnetic pole of a hydrogenerator at any time during the assembling process in the prior art, the utility model discloses a roundness measuring frame for rotors of a large hydrogenerator, wherein the roundness measuring frame comprises a main shaft connection mechanism, a balance weight shaft, a balance weight, a horizontal support frame and a measuring arm. In the assembling process of the rotors of the large hydrogenerator, the roundness measuring frame for the rotors of the large hydrogenerator is used for measuring the radius of the external circle of each magnetic pole at any time and detecting the roundness and the coaxiality of the external circle of each magnetic pole, so as to ensure that the center height of the magnetic pole is consistent to the center height of the stators. The roundness measuring frame for the rotors of the large hydrogenerator has the positive technical effects of guaranteeing the roundness and the coaxiality of the external circle of the magnetic pole and the center height of each magnetic pole in the rotor assembling process, and playing an important role in safe operation of the generator set. Moreover, the roundness measuring frame for the rotors of the large hydrogenerator is universal and can meet the needs of rotor assembling of the hydrogenerators of various specifications and various models.
Description
Technical field
The utility model relates to large-sized water turbine generator rotor mounting technology, specially refers to a kind of large-sized water turbine generator rotor and surveys the circle frame.
Background technology
In large-sized water turbine generator rotor operation process, gap between rotor and the 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 the per minute hundreds of to thousands of speed that turn 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 the circularity of rotor outer circle, right alignment and centre-height.
Usually, the tolerance of large-sized water turbine generator rotor diameter is generally about 1mm, and guaranteeing circularity and right alignment, and then the homogeneity in the gap of assurance and stator, and the pole center height is consistent with the stator center height.Because the volume of large-sized water turbine generator rotor is larger, weight is also larger, therefore, usually is to assemble at the scene, power station.Again because the size specification of hydrogenerator is different, there is not 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 continuous adjustment is being installed, make its circularity, right alignment and centre-height reach technical requirement, so the homogeneity of assurance 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 utility model proposes a kind of large-sized water turbine generator rotor and surveys the circle frame.
The utility model large-sized water turbine generator rotor is surveyed the circle frame and is comprised main shaft bindiny mechanism, balancer shaft, counterweight, horizontal shore and gage beam, balancer shaft and horizontal shore symmetry are installed in main shaft bindiny mechanism two ends, gage beam is installed in the end of horizontal shore, main shaft bindiny mechanism comprises locating ring, lower locating ring, upper side direction bearing, lower side direction bearing, rolling leg and contour post, on, lower locating ring is fixed together and is sleeved on the rotor main shaft by perpendicular muscle, upper side direction bearing is fixedly mounted on the locating ring, lower side direction bearing is fixedly mounted on the lower locating ring, the rolling leg is fixedly mounted on the bottom of lower locating ring, and contour post is arranged on the bottom of lower locating ring; Described upper and lower side bearing respectively is 6 and is evenly distributed on circumference, and described rolling leg and isometry block respectively are 6 settings corresponding to side bearing, and described perpendicular muscle is 12 and is evenly distributed on circumference.
Further, the utility model large-sized water turbine generator rotor is surveyed the circle frame and be provided with stay cord above horizontal shore, and the below is provided with inner support and outer support.
Further, the side bearing that the utility model large-sized water turbine generator rotor is surveyed the circle frame comprises gusseted, adjusting bolt and bearing, and wherein, gusseted is fixed on the locating ring, and adjusting bolt is fixed on the gusseted, and bearing is fixed on the adjusting bolt front end.
Further, the rolling leg that the utility model large-sized water turbine generator rotor is surveyed the circle frame comprises support column, adjusting bolt and bearing, and wherein, bearing is installed in the bottom of support column, and support column is fixed on the lower locating ring by adjusting bolt.
Further, the contour column top of the utility model large-sized water turbine generator rotor survey circle frame is provided with adjusting bolt.
The useful technique effect that the utility model large-sized water turbine generator rotor is surveyed the circle frame is the centre-height that has guaranteed circularity, right alignment and each magnetic pole of magnetic pole cylindrical in the rotor assembling, for vital role has been brought into play in the safe operation of unit.And, have versatility, can satisfy the needs of the hydraulic generator rotor assembling of Multiple Type specification.
Description of drawings
Accompanying drawing 1 is surveyed the structural representation of facing of circle frame for the utility model large-sized water turbine generator rotor;
Accompanying drawing 2 is the plan structure schematic diagram that the utility model large-sized water turbine generator rotor is surveyed the circle frame;
Accompanying drawing 5 is the partial structurtes schematic diagram that the utility model large-sized water turbine generator rotor is surveyed circle frame rolling leg and contour post;
Accompanying drawing 6 is that the utility model large-sized water turbine generator rotor is surveyed the schematic diagram that the circle frame uses state.
Below in conjunction with the drawings and specific embodiments the utility model large-sized water turbine generator rotor being surveyed the circle frame is further described.
Embodiment
Accompanying drawing 1 is surveyed the structural representation of facing of circle frame for the utility model large-sized water turbine generator rotor, accompanying drawing 2 is the plan structure schematic diagram that the utility model large-sized water turbine generator rotor is surveyed the circle frame, accompanying drawing 3 is the partial structurtes schematic diagram that the utility model large-sized water turbine generator rotor is surveyed circle frame main shaft bindiny mechanism, among the figure, 1 is main shaft bindiny mechanism, and 2 is balancer shaft, and 3 is counterweight, 4 is horizontal shore, 5 is gage beam, and 6 is the generator amature main shaft, and 101 is upper locating ring, 102 is lower locating ring, 103 is upper side direction bearing, and 104 is lower side direction bearing, and 105 are the rolling leg, 106 is contour post, and 107 are perpendicular muscle.As seen from the figure, the utility model large-sized water turbine generator rotor is surveyed the 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 installed in main shaft bindiny mechanism 1 two ends, gage beam 5 is installed in the end of horizontal shore 4, main shaft bindiny mechanism 4 comprises locating ring 101, lower locating ring 102, upper side direction bearing 103, lower side direction bearing 104, rolling leg 105 and contour post 106, on, lower locating ring (101,102) be fixed together and be sleeved on the rotor main shaft 6 by perpendicular muscle 107, upper side direction bearing 103 is fixedly mounted on the locating ring 101, lower side direction bearing 104 is fixedly mounted on the lower locating ring 102, rolling leg 105 is fixedly mounted on the bottom of lower locating ring 102, and contour post 106 is arranged on the bottom of lower locating ring 102; Described upper and lower side bearing (103,104) respectively is 6 and is evenly distributed on circumference, and described rolling leg 105 and isometry block 106 respectively be 6 and arrange with side bearing (103,104) is corresponding, and described perpendicular muscle 107 is 12 and is evenly distributed on circumference.The utility model large-sized water turbine generator rotor is surveyed the circle frame and is adopted main shaft bindiny mechanism that horizontal shore and gage beam are installed on the generator amature main shaft and are equipped with counterweight to make it keep balance, guarantee that gage beam can rotate round the generator amature main shaft, monitors the assembling of rotor magnetic pole.By accompanying drawing 1 also as can be known, the utility model large-sized water turbine generator rotor is surveyed the circle frame and be provided with stay cord 401 above horizontal shore 4, the below is provided with inner support 402 and outer support 403, guaranteed that not only horizontal shore is horizontal all the time, also guaranteed the verticality of horizontal shore and main shaft bindiny mechanism and gage beam.
Accompanying drawing 5 is the partial structurtes schematic diagram that the utility model large-sized water turbine generator rotor is surveyed circle frame rolling leg and contour post, and among the figure, 1051 is bearing, and 1052 is support column, and 1053 is adjusting bolt, and 1061 is contour post, and 1062 is adjusting bolt.As seen from the figure, the rolling leg that the utility model large-sized water turbine generator rotor is surveyed the circle frame comprises support column 1052, adjusting bolt 1053 and bearing 1051, wherein, bearing 1051 is installed in the bottom of support column 1052, and support column 1052 is fixed on the lower locating ring 102 by adjusting bolt 1053.For further improving stationarity and the steadiness of the rotation of main shaft bindiny mechanism, guarantee horizontal shore all the time with the position rotation of level, the utility model is surveyed the circle frame and is specially provided with the rolling leg in the bottom of lower locating ring, and setting corresponding to side bearing.The rolling leg has played effective supporting role, so that locating ring can not produce inclination because bearing larger moment of torsion, thereby has guaranteed that horizontal shore rotates with the position of level all the time.From accompanying drawing 5 also as can be known, contour post 1061 tops of the utility model large-sized water turbine generator rotor survey circle frame are provided with adjusting bolt 1062.No matter needing to specify is the adjusting bolt of contour column top setting, still adopt adjusting bolt that the rolling leg is fixed on the lower locating ring, all be to regulate for the height that makes contour post and rolling leg, the generator shaft that can adapt to the different-diameter size is so that the utility model large-sized water turbine generator rotor is surveyed the needs that the circle frame can satisfy the hydraulic generator rotor assembling of different model specification.
Accompanying drawing 6 is that the utility model large-sized water turbine generator rotor is surveyed the schematic diagram that the circle frame uses state.6 as can be known by reference to the accompanying drawings, adopts the utility model large-sized water turbine generator rotor survey circle frame that hydraulic generator rotor is assembled and measure, and may further comprise the steps:
S1: by adjusting bolt side bearing is retracted to the shortest position, same, the rolling leg is retracted to the shortest position;
S2: by adjusting bolt contour post is adjusted to desired height, the height error between the contour post should be in 0.05mm, and it evenly is placed on the rotor support hub end face;
S3: locating ring is sleeved on rotor main shaft and is placed on the contour post, and adjust the position of locating ring, the inboard distance to the main shaft cylindrical of locating ring each side is equated;
S4: the adjusting bolt of regulating each side bearing is adjacent to the bearing of front end and main shaft cylindrical; When if the main shaft ovality surpasses 0.04mm, need to adopt clearance gauge to adjust, can both in not extruded situation, be as the criterion by the maximum gauge place with all bearings;
S5: the height of regulating the rolling leg makes its height with contour post identical;
S6: take off contour post, coat machine oil at the rotor support hub end face, the 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 is until meet the demands;
S7: balancer shaft, counterweight and horizontal shore and stay cord and inside and outside support are installed; Install and measure arm, and at gage beam dial gauge is installed;
S8: in the 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 the main shaft cylindrical deduct dial gauge to the distance of dial gauge is added main shaft is exactly the radius of magnetic pole cylindrical, thereby circularity, the right alignment of each magnetic pole cylindrical checked;
S9: after rotor magnetic pole assembling is complete, measure first the centre-height of a certain magnetic pole, require deviation in ± 1.0mm, dial gauge is aimed at the center of this magnetic pole again, last wheel measuring arm checks the centre-height of each magnetic pole; If still have local height point it to be polished off with emery wheel after checking adjustment, thereby guarantee that the pole center height is consistent with the stator center height.
Obviously, the useful technique effect that the utility model large-sized water turbine generator rotor is surveyed the circle frame is the centre-height that has guaranteed circularity, right alignment and each magnetic pole of magnetic pole cylindrical in the rotor assembling, for vital role has been brought into play in the safe operation of unit.And, have versatility, can satisfy the needs of the hydraulic generator rotor assembling of Multiple Type specification.
Claims (5)
1. a large-sized water turbine generator rotor is surveyed the 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 installed in main shaft bindiny mechanism two ends, gage beam is installed in the end of horizontal shore, main shaft bindiny mechanism comprises locating ring, lower locating ring, upper side direction bearing, lower side direction bearing, rolling leg and contour post, on, lower locating ring is fixed together and is sleeved on the rotor main shaft by perpendicular muscle, upper side direction bearing is fixedly mounted on the locating ring, lower side direction bearing is fixedly mounted on the lower locating ring, the rolling leg is fixedly mounted on the bottom of lower locating ring, and contour post is arranged on the bottom of lower locating ring; Described upper and lower side bearing respectively is 6 and is evenly distributed on circumference, and described rolling leg and isometry block respectively are 6 settings corresponding to side bearing, and described perpendicular muscle is 12 and is evenly distributed on circumference.
2. described large-sized water turbine generator rotor is surveyed the circle frame according to claim 1, and it is characterized in that: be provided with stay cord above horizontal shore, the below is provided with inner support and outer support.
3. described large-sized water turbine generator rotor is surveyed the circle frame according to claim 1, it is characterized in that: side bearing comprises gusseted, adjusting bolt and bearing, and wherein, gusseted is fixed on the locating ring, adjusting bolt is fixed on the gusseted, and bearing is fixed on the adjusting bolt front end.
4. described large-sized water turbine generator rotor is surveyed the circle frame according to claim 1, and it is characterized in that: the rolling leg comprises support column, adjusting bolt and bearing, and wherein, bearing is installed in the bottom of support column, and support column is fixed on the lower locating ring by adjusting bolt.
5. described large-sized water turbine generator rotor is surveyed the circle frame according to claim 1, and it is characterized in that: contour column top is provided with adjusting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472268 CN202770377U (en) | 2012-09-17 | 2012-09-17 | Roundness measuring frame for rotors of large hydrogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472268 CN202770377U (en) | 2012-09-17 | 2012-09-17 | Roundness measuring frame for rotors of large hydrogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770377U true CN202770377U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220472268 Withdrawn - After Issue CN202770377U (en) | 2012-09-17 | 2012-09-17 | Roundness measuring frame for rotors of large hydrogenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770377U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829701A (en) * | 2012-09-17 | 2012-12-19 | 重庆水轮机厂有限责任公司 | Circle measuring frame for large-size hydro-generator rotor and use method thereof |
| CN103791821A (en) * | 2014-02-14 | 2014-05-14 | 哈尔滨工业大学 | Aero-engine rotor assembly method and device based on radial errors and axial inclination |
| CN103791820A (en) * | 2014-02-14 | 2014-05-14 | 哈尔滨工业大学 | Assembly method and device for aero-engine rotors based on vector stacking principle |
| CN110793488A (en) * | 2019-11-07 | 2020-02-14 | 南昌工程学院 | Hydroelectric generating set rotor circle measuring device and circle measuring adjustment calculation method thereof |
-
2012
- 2012-09-17 CN CN 201220472268 patent/CN202770377U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829701A (en) * | 2012-09-17 | 2012-12-19 | 重庆水轮机厂有限责任公司 | Circle measuring frame for large-size hydro-generator rotor and use method thereof |
| CN103791821A (en) * | 2014-02-14 | 2014-05-14 | 哈尔滨工业大学 | Aero-engine rotor assembly method and device based on radial errors and axial inclination |
| CN103791820A (en) * | 2014-02-14 | 2014-05-14 | 哈尔滨工业大学 | Assembly method and device for aero-engine rotors based on vector stacking principle |
| CN103791820B (en) * | 2014-02-14 | 2015-11-25 | 哈尔滨工业大学 | Based on aeroengine rotor assembly method and the device of the stacking principle of vector |
| CN110793488A (en) * | 2019-11-07 | 2020-02-14 | 南昌工程学院 | Hydroelectric generating set rotor circle measuring device and circle measuring adjustment calculation method thereof |
| CN110793488B (en) * | 2019-11-07 | 2021-08-20 | 南昌工程学院 | Hydroelectric generating set rotor circle measuring device and circle measuring adjustment calculation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |