CN112504094A - Gas turbine shaft coupling centering combination frock - Google Patents
Gas turbine shaft coupling centering combination frock Download PDFInfo
- Publication number
- CN112504094A CN112504094A CN202011524873.4A CN202011524873A CN112504094A CN 112504094 A CN112504094 A CN 112504094A CN 202011524873 A CN202011524873 A CN 202011524873A CN 112504094 A CN112504094 A CN 112504094A
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- Prior art keywords
- rod
- centering
- meter
- sleeve
- gas turbine
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- 230000008878 coupling Effects 0.000 title claims description 13
- 238000010168 coupling process Methods 0.000 title claims description 13
- 238000005859 coupling reaction Methods 0.000 title claims description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
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Classifications
-
- 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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention aims to provide a centering combined tool for a gas turbine coupler, which comprises a centering tool unit, wherein the centering tool unit comprises a gauge rod and an elastic centering frame, the two centering tool units are installed together to form a centering tool combination, central rods of the two centering tool units forming the centering tool combination are installed together, a dial indicator fixing sleeve is fixedly installed behind an outer connecting sleeve of the centering tool unit positioned behind the centering tool unit through a locking screw, and the central rod controls the dial indicator fixing sleeve behind the central rod, so that the displacement of the two central rods is transmitted to a corresponding dial indicator. The invention can effectively meet the measurement of the numerical values of the end face openings at the two ends of the coupler in the field centering process of the gas turbine, and is particularly suitable for precise centering and centering inspection in the operation and maintenance stage of a unit. The gas turbine engine is compact in structure, simple in components and simple in operation process, and can be adapted to gas turbine equipment with different purposes (such as a gas turbine-compressor, a gas turbine-generator and a gas turbine-gear box).
Description
Technical Field
The invention relates to a centering tool, in particular to a gas turbine coupling centering combined tool.
Background
At present, in the installation and centering process of a gas turbine coupling, three parts of contents are mainly involved: checking the centering state of the coarse centering, the fine centering and the later operation and maintenance stage. The tool used for centering inspection mainly comprises a magnetic gauge seat for mounting a dial indicator and a laser centering instrument.
The magnetic gauge stand provided with the dial indicator is wide in practical centering application, but is limited more in the using process, and cannot be stably fixed on the curved surface of the coupler or the elastic shaft, so that the reading of the dial indicator is influenced, and the centering result is further influenced. The laser centering instrument has high cost, related dimension parameters need to be accurately input in the centering process, the setting and measuring processes are complicated, and the centering inspection in the later operation and maintenance stage is limited.
Disclosure of Invention
The invention aims to provide a gas turbine coupling centering combined tool for measuring the offset in the centering inspection process in the fine centering or unit operation and maintenance stage.
The purpose of the invention is realized as follows:
the invention relates to a gas turbine coupling centering combined tool, which is characterized in that: the centering tool unit comprises a gauge rod and an elastic centering frame, wherein the gauge rod comprises a central rod, an inner connecting sleeve, an outer sleeve, a spring, a positioning sleeve, an outer connecting sleeve and a dial indicator fixing sleeve, the inner connecting sleeve, the outer sleeve and the outer connecting sleeve are sequentially connected to form a gauge rod casing part, the positioning sleeve is fixed on the inner wall of the outer connecting sleeve, the central rod is arranged inside the gauge rod casing part, a bulge is arranged on the central rod, the spring is sleeved outside the central rod, and the position of the spring is located between the bulge and the positioning sleeve;
the elastic centering frame comprises an upper meter rod support half, a lower meter rod support half, an upper meter rack arc plate half and a lower meter rack arc plate half, the upper meter rod support half and the lower meter rod support half are connected with a meter rod through slipknot bolts, the upper meter rack arc plate half and the lower meter rack arc plate half are connected with an elastic shaft through slipknot bolts, the lower meter rod support half is provided with a meter rod support connecting rod, the upper meter rack arc plate half is provided with a meter rack arc plate connecting rod, the meter rod support connecting rod is connected with the meter rack arc plate connecting rod, and the relative position of the meter rod support connecting rod and the meter rack arc plate connecting rod is adjustable;
the two centering tool units are installed together to form a centering tool combination, the central rods of the two centering tool units forming the centering tool combination are installed together, the dial indicator fixing sleeve is fixedly installed behind the outer connecting sleeve of the centering tool unit located behind the central rod through a locking screw, and the central rod controls the dial indicator fixing sleeve behind the central rod, so that the displacement of the two central rods is transmitted to the corresponding dial indicator.
The present invention may further comprise:
1. the fixed cover of percentage table is connected the percentage table, and well core rod is when taking place the displacement because the elastic shaft is not centering reason atress, well core rod compression spring under the combined action of position sleeve to with self displacement volume through outer adapter sleeve, the fixed cover of percentage table transmit the measurement tip of percentage table, make it take place the displacement and show displacement volume numerical value, disappear when the shaft coupling is not centering, well core rod tip no longer the atress, well core rod resets under the effect of spring, the percentage table resets because the elimination of displacement volume simultaneously.
The invention has the advantages that:
1. the application can effectively meet the measurement of the numerical values of the openings of the end faces at the two ends of the coupler in the field centering process of the gas turbine, and is particularly suitable for centering inspection in the accurate centering and unit operation and maintenance stages.
2. This application can be stable fix the percentage table on the shaft coupling, improved the measurement accuracy.
3. The gas turbine engine is compact in structure, simple in components and simple in operation process, and can be adapted to gas turbine equipment with different purposes (such as a gas turbine-compressor, a gas turbine-generator and a gas turbine-gear box).
4. The application has the advantages of simple field operation, capability of improving the field centering operation efficiency and high economical efficiency. Each main part has reasonable design, higher independence and interchangeability and can reduce the maintenance cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a watch stick structure according to the present invention;
fig. 3a is a schematic structural view of the elastic centering frame of the invention, and fig. 3b is a side view of the elastic centering frame.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
with reference to fig. 1-3b, the centering tool unit comprises a meter rod 1 and an elastic centering frame 2, wherein the meter rod 1 comprises a central rod a, an inner connecting sleeve b, an outer sleeve c, a spring d, a positioning sleeve e, an outer connecting sleeve f, a dial indicator fixing sleeve g and a locking screw h, as shown in fig. 2. The elastic centering frame 2 comprises: the lower half 11 of the watch frame arc-shaped plate, the upper half 12 of the watch frame arc-shaped plate, the lower half 13 of the watch rod bracket, the upper half 14 of the watch rod bracket, a slipknot bolt 15, a bolt nut and the like, as shown in fig. 3a and 3 b. The centering tool units are multiple and are respectively located at different positions of the elastic shaft. Wherein part centering frock unit is installed on the elastic shaft alone, and two liang of combinations of part centering frock unit form combination frock. During combination, the central rods of the two centering tool units are installed together, the dial indicator fixing sleeve g is fixedly installed behind the outer connecting sleeve f of the centering tool unit positioned behind the central rods through the locking screws h, the central rod a controls the dial indicator fixing sleeve g behind the central rod a, and therefore displacement of the two central rods a is transmitted to the corresponding dial indicator 3.
When the central rod a at the end part of the meter rod is stressed to displace in the measuring process, the central rod a compresses the spring d under the combined action of the positioning sleeve e, and the self displacement is transmitted to the measuring end part of the dial indicator 3 through the dial indicator fixing sleeve g, so that the measuring end part displaces and displays the displacement value. The inner connecting sleeve b, the outer sleeve c and the outer connecting sleeve f jointly form a meter rod shell part and play roles in connection and support.
The lower half 12 and the upper half 11 of the arc-shaped plate of the meter stand are used as rotating shafts through connecting bolts, the other ends of the arc-shaped plate of the meter stand are fixed as locking through slipknot bolts 15, and the meter stand can be integrally and stably installed on the surface of a coupler. The top end of the bracket of the upper half 12 of the arc-shaped plate of the gauge stand is provided with a support for fixing the gauge rod bracket, the support is fixed through a bolt, and the radial height of the support can be adjusted.
The lower part 13 and the upper part 14 of the watch rod support are used as rotating shafts through connecting bolts, and the other ends of the watch rod support are used as locking and fixing through slipknot bolts 5, so that the watch rod can be locked and fixed.
The working principle is as follows:
as shown in fig. 1, when the gas turbine coupling centering tool is used, all the elastic centering frames 2 are firstly installed at proper positions of the coupling (elastic shaft), and are locked and fixed. And then, connecting each meter rod 1 to the corresponding elastic centering frame 2, and installing the dial indicator 3 on the meter rod bracket, wherein the radial height of the meter rod support can be adjusted according to conditions during the process, so that the meter rod support is suitable for flanges (measuring objects) with different sizes.
After the installation and fixation are completed, measurement is started. When the central rod a is stressed to displace due to the opening (non-centering) of the end face of the coupler, the central rod a compresses the spring d under the combined action of the positioning sleeve e, and the self displacement is transmitted to the measuring end part of the dial indicator 3 through the dial indicator fixing sleeve g, so that the central rod a displaces and displays the displacement value. And when the opening (not centering) of the end surface of the coupler disappears, the end part of the central rod a is not stressed any more, the central rod a is reset under the action of the spring d, and the dial indicator is reset due to the elimination of the displacement.
Claims (2)
1. The utility model provides a gas turbine shaft coupling centering combination frock, characterized by: the centering tool unit comprises a gauge rod and an elastic centering frame, wherein the gauge rod comprises a central rod, an inner connecting sleeve, an outer sleeve, a spring, a positioning sleeve, an outer connecting sleeve and a dial indicator fixing sleeve, the inner connecting sleeve, the outer sleeve and the outer connecting sleeve are sequentially connected to form a gauge rod casing part, the positioning sleeve is fixed on the inner wall of the outer connecting sleeve, the central rod is arranged inside the gauge rod casing part, a bulge is arranged on the central rod, the spring is sleeved outside the central rod, and the position of the spring is located between the bulge and the positioning sleeve;
the elastic centering frame comprises an upper meter rod support half, a lower meter rod support half, an upper meter rack arc plate half and a lower meter rack arc plate half, the upper meter rod support half and the lower meter rod support half are connected with a meter rod through slipknot bolts, the upper meter rack arc plate half and the lower meter rack arc plate half are connected with an elastic shaft through slipknot bolts, the lower meter rod support half is provided with a meter rod support connecting rod, the upper meter rack arc plate half is provided with a meter rack arc plate connecting rod, the meter rod support connecting rod is connected with the meter rack arc plate connecting rod, and the relative position of the meter rod support connecting rod and the meter rack arc plate connecting rod is adjustable;
the two centering tool units are installed together to form a centering tool combination, the central rods of the two centering tool units forming the centering tool combination are installed together, the dial indicator fixing sleeve is fixedly installed behind the outer connecting sleeve of the centering tool unit located behind the central rod through a locking screw, and the central rod controls the dial indicator fixing sleeve behind the central rod, so that the displacement of the two central rods is transmitted to the corresponding dial indicator.
2. The gas turbine coupling centering combined tool as claimed in claim 1, wherein: the fixed cover of percentage table is connected the percentage table, and well core rod is when taking place the displacement because the elastic shaft is not centering reason atress, well core rod compression spring under the combined action of position sleeve to with self displacement volume through outer adapter sleeve, the fixed cover of percentage table transmit the measurement tip of percentage table, make it take place the displacement and show displacement volume numerical value, disappear when the shaft coupling is not centering, well core rod tip no longer the atress, well core rod resets under the effect of spring, the percentage table resets because the elimination of displacement volume simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524873.4A CN112504094A (en) | 2020-12-22 | 2020-12-22 | Gas turbine shaft coupling centering combination frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524873.4A CN112504094A (en) | 2020-12-22 | 2020-12-22 | Gas turbine shaft coupling centering combination frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112504094A true CN112504094A (en) | 2021-03-16 |
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ID=74922987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011524873.4A Pending CN112504094A (en) | 2020-12-22 | 2020-12-22 | Gas turbine shaft coupling centering combination frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112504094A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353647A (en) * | 2022-01-27 | 2022-04-15 | 中国船舶重工集团公司第七0三研究所无锡分部 | Verification tool and method for centering condition of marine gas turbine and underframe |
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| CN2262702Y (en) * | 1995-08-10 | 1997-09-17 | 刘斌 | Deviation measurer for coupling |
| JP2010071705A (en) * | 2008-09-17 | 2010-04-02 | Hitachi Plant Technologies Ltd | Coupling centering tool |
| CN201493666U (en) * | 2009-08-28 | 2010-06-02 | 顾若 | Quick magnetic centering device |
| CN102901421A (en) * | 2012-10-03 | 2013-01-30 | 车晋绥 | Alignment device for couplers |
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| WO2014092523A1 (en) * | 2012-11-23 | 2014-06-19 | Universite Sidi Mohamed Ben Abdellah | Device for controlling the alignment of transmission shafts |
| CN203758444U (en) * | 2014-01-22 | 2014-08-06 | 珠海格力电器股份有限公司 | Coupling adjustment device |
| CN104792249A (en) * | 2014-01-22 | 2015-07-22 | 珠海格力电器股份有限公司 | Coupling adjusting device |
| CN205027292U (en) * | 2015-09-24 | 2016-02-10 | 中国石油天然气股份有限公司 | Shaft coupling alignment appearance |
| CN106767227A (en) * | 2017-01-09 | 2017-05-31 | 沈阳工业大学 | Centrifugal water pump shaft coupling centering fixture |
| CN106839924A (en) * | 2017-01-09 | 2017-06-13 | 沈阳工业大学 | Centrifugal pump couplings centering fixture |
| CN206440228U (en) * | 2017-02-09 | 2017-08-25 | 中国石油天然气股份有限公司大连石化分公司 | Adjustable diaphragm type coupler centering detector |
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2020
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| CN2262702Y (en) * | 1995-08-10 | 1997-09-17 | 刘斌 | Deviation measurer for coupling |
| JP2010071705A (en) * | 2008-09-17 | 2010-04-02 | Hitachi Plant Technologies Ltd | Coupling centering tool |
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| WO2014092523A1 (en) * | 2012-11-23 | 2014-06-19 | Universite Sidi Mohamed Ben Abdellah | Device for controlling the alignment of transmission shafts |
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| CN207688806U (en) * | 2017-11-30 | 2018-08-03 | 中国石油天然气股份有限公司 | Diaphragm coupling means for correcting |
| CN209665167U (en) * | 2018-12-29 | 2019-11-22 | 首钢水城钢铁（集团）有限责任公司 | A kind of diaphragm coupling aligning concentricity device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353647A (en) * | 2022-01-27 | 2022-04-15 | 中国船舶重工集团公司第七0三研究所无锡分部 | Verification tool and method for centering condition of marine gas turbine and underframe |
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