CN112504081B - Generator stator rotor clearance measuring device - Google Patents
Generator stator rotor clearance measuring device Download PDFInfo
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- CN112504081B CN112504081B CN202011344443.4A CN202011344443A CN112504081B CN 112504081 B CN112504081 B CN 112504081B CN 202011344443 A CN202011344443 A CN 202011344443A CN 112504081 B CN112504081 B CN 112504081B
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- measuring
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- rotor
- stator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture Of Motors, Generators (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a generator stator and rotor clearance measuring device which comprises a measuring scale, a measuring rod, a connecting rod, a pull rope and an elastic member, wherein the tail end of the measuring rod is movably connected with the initial end of the measuring scale, the initial end of the measuring rod and the tail end of the connecting rod are hinged to form a clamp structure, the elastic member is positioned in the clamp structure and is respectively connected with the measuring rod and the connecting rod, and one end of the pull rope is connected with the measuring rod. The measuring device improves the measuring efficiency and the measuring precision when measuring the gap between the stator and the rotor of the generator.
Description
Technical Field
The invention relates to the field of measurement of stators and rotors of thermal power stations, in particular to a generator stator and rotor gap measuring device.
Background
With the rapid increase of thermal power generating units in recent years in China, the installed capacity of thermal power in China is 11.5 hundred million kilowatts in 2019. Competition of the thermal power generating unit also sharply increases, which also causes the installation accuracy and the overhaul period of the thermal power generating unit to be increasingly tense. In the installation and maintenance of a thermal power generating unit, it is generally necessary to measure the gap between the stator and the rotor of the generator. The prior art measuring tools include bolt-type measuring tools and feelers. When the bolt type measuring tool is used for measuring, the height of the bolt needs to be manually adjusted until the bolt is matched with the gap of the stator and the rotor of the generator, so that the measuring efficiency is low and the error of measured data is large. When the feeler gauge is measured, a detection person is required to estimate the size of the gap, and then the feeler gauges with different thicknesses are selected to be plugged into the gap to obtain measurement data, so that the measuring process is complicated, the efficiency is low, and the measurement error is large.
Disclosure of Invention
The invention provides a generator stator and rotor gap measuring device, which aims at the technical problems of low efficiency and large error of measured data in the process of measuring the gap between a thermal generator stator and a rotor in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a generator stator rotor clearance measuring device, contains dipperstick, measuring stick, connecting rod, stay cord and elastic component, wherein the end tail end of measuring stick with the initial end swing joint of dipperstick, the initial end of measuring stick with the end of connecting rod is articulated to be constituted and is pressed from both sides the structure, elastic component is located press from both sides in the structure, and respectively with the measuring stick with the connecting rod is connected, the one end of stay cord with the measuring stick is connected.
In the invention, the measuring scale, the measuring rod and the connecting rod all comprise two ends, wherein one end is an initial end, and the other end is a tail end. The measuring rod and the connecting rod include two ends, one of which is an initial end or a tail end, and the other end is a tail end or an initial end, respectively, and the invention is not particularly limited thereto. The measuring scale is provided with scale marks and scale values, one end with the minimum scale value is the initial end of the measuring scale, and the other end with the maximum scale value is the tail end of the measuring scale.
In the process of measuring the gap between the stator and the rotor of the power station, the measuring device automatically adjusts the included angle between the measuring rod and the connecting rod through the contraction and the expansion of the elastic component arranged between the measuring rod and the connecting rod, fixes the included angle when the tail end of the measuring rod is contacted with the stator or the rotor through the pull rope, and then swings the measuring scale to be vertical to the connecting rod for reading to obtain the measurement data of the gap. The measuring device provided by the invention avoids the condition that the height of the bolt is manually adjusted until the height is matched with the gap of the stator and the rotor of the generator in the prior art, and also avoids the condition that a feeler with different thicknesses is required to be plugged into the gap for measurement for multiple times, thereby improving the measuring efficiency and the measuring precision.
Further, the dipperstick sets up the through-hole, the dipperstick passes through the through-hole is hung and is detained on the measuring stick. The measuring scale is hung and buckled on the measuring rod, so that the problem of obstruction caused by free movement of the measuring scale when the measuring rod is placed in the gap between the stator and the rotor of the generator is avoided, and the measuring efficiency is improved.
Furthermore, a hook or a bulge is arranged on the measuring rod, and the measuring scale is hung and buckled on the hook or the bulge of the measuring rod through the through hole.
Further, the length of the measuring ruler is greater than or equal to the length of the measuring rod.
In a preferred embodiment of the present invention, the measuring scale is equal in length to the measuring rod, and the through hole is provided at a distal end of the measuring scale. The hook or the bulge is arranged at the initial end of the measuring rod.
Further, the measuring scale also comprises a knob screw, the initial end of the measuring scale is movably connected with the tail end of the measuring rod through the knob screw, and the measuring scale can rotate 360 degrees.
Further, the connecting rod includes a handle located at an initial end of the connecting rod.
Furthermore, the other end of the pull rope is connected with the connecting rod, and the pull rope is integrally linear. The pull rope is preferably a nylon rope.
Further, the elastic member includes a compression spring.
On the other hand, the invention provides an application method of a generator stator and rotor clearance measuring device, the measuring device comprises a measuring scale, a measuring rod, a connecting rod, a pull rope and an elastic component, wherein the tail end of the measuring rod is movably connected with the initial end of the measuring scale, the initial end of the measuring rod is hinged with the tail end of the connecting rod to form a clamp structure, the elastic component is positioned in the clamp structure and is respectively connected with the measuring rod and the connecting rod, one end of the pull rope is connected with the measuring rod,
the application method comprises the following steps:
placing the connecting rod in a gap between a stator and a rotor of a generator;
when the tail end of the measuring rod is contacted with the stator or the rotor, the other end of the pull rope is fixed on the connecting rod, so that the pull rope is in a straight line shape, and an included angle between the measuring rod and the connecting rod is fixed;
taking out the connecting rod, and enabling the measuring scale to be perpendicular to the connecting rod;
and taking the scale mark of the measuring scale, which is coincided with the bottom edge of the connecting rod, as a reference, and acquiring a scale value corresponding to the scale mark as measuring data. The manner of acquisition includes reading or recording.
Further, the tail end of dipperstick sets up the through-hole, before putting the connecting rod in the clearance between generator stator and the rotor, still contains the step: and hanging and buckling the tail end of the measuring scale at the initial end of the measuring rod through the through hole.
Further, the connecting rod comprises a handle, the handle is located at the initial end of the connecting rod, and the other end of the pull rope is fixed on the handle.
Further, when the tail end of the measuring rod contacts the stator or the rotor, fixing the other end of the pulling rope to the connecting rod further includes: the contact of the end of the measuring rod with the stator or rotor is achieved by the contraction or expansion of an elastic member.
Compared with the prior art, the invention has the following beneficial effects:
(1) compared with the existing bolt type measuring tool and the clearance gauge, the measuring tool provided by the invention has the advantages that the measuring time is greatly shortened, the measuring time is saved and the labor intensity is reduced.
(2) Need manual adjusting bolt height by original bolt when measuring until coincide with generator stator rotor clearance, become that the handheld connecting rod of survey crew relies on spring tension to carry out the reading according to the dipperstick after automatic measurement, simple effective and improved measurement accuracy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a generator stator and rotor clearance measuring device provided by an embodiment of the invention when not in use.
Fig. 2 is a schematic structural diagram of a generator stator and rotor gap measurement device during normal measurement according to an embodiment of the present invention.
The reference numbers in the drawings are as follows:
1-measuring a ruler; 2-measuring rod; 3-compression spring; 4-a connecting rod; 4A-connecting rod bottom edge; 5-nylon rope; 6-knob screw; 7-a handle.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view, and includes a measuring scale 1, a measuring rod 2, a connecting rod 4, a nylon rope 5, and a compression spring 3, wherein a knob screw 6 is disposed at a tail end of the measuring rod 2, an initial end of the measuring scale 1 is movably connected with the measuring rod 2 through the knob screw 6, an initial end of the measuring rod 2 is hinged to the tail end of the connecting rod 4 to form a clamp structure, the compression spring 3 is disposed in the clamp structure and is respectively connected with the measuring rod 2 and the connecting rod 4, and one end of the nylon rope 5 is connected with the measuring rod 2.
The operation steps of a specific example of the measuring device provided by the invention in normal measurement comprise: the connecting rod 4 is placed in the gap between the stator and the rotor of the generator; the tail end of the measuring rod 2 is contacted with the stator or the rotor through the contraction of the compression spring 3, when the tail end of the measuring rod 2 is contacted with the stator or the rotor, the other end of the nylon rope 5 is fixed on a handle 7 of the connecting rod 4, the nylon rope 5 is in a tight state, so that the nylon rope 5 is in a straight line shape, and an included angle between the measuring rod 2 and the connecting rod 4 is fixed; taking out the connecting rod 4, and enabling the measuring scale 1 to be perpendicular to the connecting rod 4; and taking a scale mark (a red line in the measuring scale 1 in the attached figure 2 represents the scale mark) of the measuring scale 1, which is superposed with the bottom edge 4A of the connecting rod, as a reference, and reading a scale value corresponding to the scale mark as measuring data. FIG. 2 is a schematic structural diagram of a generator stator and rotor clearance measuring device during normal measurement.
It is to be understood that, unless expressly stated or limited otherwise, the term "coupled" is used in a generic sense to refer to, for example, either fixedly, detachably or integrally connected; may be a mechanical connection; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A generator stator and rotor clearance measuring device is characterized by comprising a measuring scale, a measuring rod, a connecting rod, a pull rope and an elastic member, wherein the tail end of the measuring rod is movably connected with the initial end of the measuring scale, the initial end of the measuring rod and the tail end of the connecting rod are hinged to form a clamp structure, the elastic member is located in the clamp structure and is respectively connected with the measuring rod and the connecting rod, and one end of the pull rope is connected with the measuring rod; the other end of the pull rope is connected with the connecting rod, and the pull rope is in a linear shape integrally.
2. The generator stator rotor clearance measuring device of claim 1, wherein the measuring scale is provided with a through hole, and the measuring scale is hung and buckled on the measuring rod through the through hole.
3. The generator stator rotor gap measuring device according to any one of claims 1 to 2, further comprising a knob screw, wherein the initial end of the measuring ruler is movably connected with the final end of the measuring rod through the knob screw, and the measuring ruler can rotate 360 degrees.
4. Generator stator rotor gap measurement device according to claim 1, wherein the connecting rod comprises a handle at the initial end of the connecting rod.
5. Generator stator rotor gap measurement device according to claim 1, wherein the resilient member comprises a compression spring.
6. An application method of a generator stator and rotor gap measuring device is characterized in that the measuring device comprises a measuring scale, a measuring rod, a connecting rod, a pull rope and an elastic component, wherein the tail end of the measuring rod is movably connected with the initial end of the measuring scale, the initial end of the measuring rod is hinged with the tail end of the connecting rod to form a clamp structure, the elastic component is positioned in the clamp structure and is respectively connected with the measuring rod and the connecting rod, one end of the pull rope is connected with the measuring rod,
the application method comprises the following steps:
placing the connecting rod in a gap between a stator and a rotor of a generator;
when the tail end of the measuring rod is contacted with the stator or the rotor, the other end of the pull rope is fixed on the connecting rod, so that the pull rope is in a straight line shape, and an included angle between the measuring rod and the connecting rod is fixed;
taking out the connecting rod, and enabling the measuring scale to be perpendicular to the connecting rod;
and taking the scale mark of the measuring scale, which is coincided with the bottom edge of the connecting rod, as a reference, and acquiring a scale value corresponding to the scale mark as measuring data.
7. The method for applying a device for measuring the gap between the stator and the rotor of a generator as claimed in claim 6, wherein the measuring ruler is provided with a through hole at the end, and before the connecting rod is placed in the gap between the stator and the rotor of the generator, the method further comprises the steps of: and hanging and buckling the tail end of the measuring scale at the initial end of the measuring rod through the through hole.
8. The method for applying a generator stator and rotor gap measuring device as claimed in claim 6, wherein the connecting rod comprises a handle at an initial end of the connecting rod, and the other end of the pull rope is fixed on the handle.
9. The method for applying a device for measuring the gap between the stator and the rotor of a generator according to claim 6, wherein the step of fixing the other end of the pull rope to the connecting rod when the tail end of the measuring rod is in contact with the stator or the rotor further comprises: the contact of the end of the measuring rod with the stator or rotor is achieved by the contraction or expansion of an elastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011344443.4A CN112504081B (en) | 2020-11-25 | 2020-11-25 | Generator stator rotor clearance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011344443.4A CN112504081B (en) | 2020-11-25 | 2020-11-25 | Generator stator rotor clearance measuring device |
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| Publication Number | Publication Date |
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| CN112504081A CN112504081A (en) | 2021-03-16 |
| CN112504081B true CN112504081B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011344443.4A Active CN112504081B (en) | 2020-11-25 | 2020-11-25 | Generator stator rotor clearance measuring device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114909980A (en) * | 2022-05-05 | 2022-08-16 | 中铁南方投资集团有限公司 | Portable shield tail clearance measuring scale and measuring method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08304061A (en) * | 1995-05-02 | 1996-11-22 | Mitsubishi Heavy Ind Ltd | Clearance gauge |
| CN101234574A (en) * | 2008-02-28 | 2008-08-06 | 马广忠 | Multifunctional teaching sector ruler and compass |
| CN201378040Y (en) * | 2009-02-06 | 2010-01-06 | 上海宝钢设备检修有限公司 | Stator/rotor air-gap measurement instrument for synchronous motor |
| CN203190926U (en) * | 2013-05-03 | 2013-09-11 | 无锡同捷汽车设计有限公司 | Gap measurement tool |
| CN204666075U (en) * | 2015-04-15 | 2015-09-23 | 浙江建设职业技术学院 | Baseplate reinforcing bar distance measurement tools |
| CN104976978A (en) * | 2015-06-29 | 2015-10-14 | 江苏永钢集团有限公司 | Air gap measuring tool |
| CN207842459U (en) * | 2017-04-07 | 2018-09-11 | 湖南生物机电职业技术学院 | A kind of Portable type compasses |
| CN109489527A (en) * | 2018-12-28 | 2019-03-19 | 大唐观音岩水电开发有限公司 | A kind of turbine-generator units clearance measurement tool and its measurement method |
| CN210347144U (en) * | 2019-01-30 | 2020-04-17 | 中国人民解放军63969部队 | Vehicle trafficability parameter measuring device |
| CN110398194A (en) * | 2019-08-05 | 2019-11-01 | 中国长江电力股份有限公司 | A kind of generator air gap measuring tool and method |
| CN211291266U (en) * | 2020-02-27 | 2020-08-18 | 薛东婧 | Multi-functional mining engineering dipperstick |
| CN111595226A (en) * | 2020-07-03 | 2020-08-28 | 上海鲍麦克斯电子科技有限公司 | Motor axial clearance detection device and method |
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Address after: 621711 Tianming village, Shuanghe Town, Jiangyou City, Mianyang City, Sichuan Province Applicant after: Sichuan Tianming Power Generation Co.,Ltd. Address before: 621711 Tianming village, Shuanghe Town, Jiangyou City, Mianyang City, Sichuan Province Applicant before: SICHUAN SHENHUA TIANMING POWER GENERATION Co.,Ltd. |
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