CN104034307A - Rapid levelness aligning method for large-size equipment - Google Patents
Rapid levelness aligning method for large-size equipment Download PDFInfo
- Publication number
- CN104034307A CN104034307A CN201410301882.5A CN201410301882A CN104034307A CN 104034307 A CN104034307 A CN 104034307A CN 201410301882 A CN201410301882 A CN 201410301882A CN 104034307 A CN104034307 A CN 104034307A
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- measurement point
- vernier caliper
- vernier
- elevation
- equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a rapid levelness aligning method for large-size equipment. The method comprises the following steps: firstly, selecting four measurement points on a levelness mounting side of equipment; after the equipment is mounted, adjusting to control the practical elevation errors of the four measurement points to be within a required specification range; subsequently fixing a vernier caliper at a first measurement point by using a magnetism gauge stand, adjusting the 0 scale line of the vernier caliper to be aligned with an elevation mark of a precise level, recording the read A of the vernier caliper at the moment, further adjusting the 0 scale line of the vernier caliper to be a value between A to B, and locking, wherein B is a design elevation difference value between a second measurement point and the first measurement point; fixing the vernier caliper at the second measurement point, adjusting the equipment to align the 0 scale line of the vernier caliper with the elevation line of the precise level, and finally performing same operation at the second measurement point at a third measurement point and a fourth measurement point. By adopting the method, the adjustment on the mounting elevation and the horizontal precision of the large-size equipment can be rapidly and precisely accomplished.
Description
Technical field
The present invention relates to a kind of equipment installation level aligning method, specifically, relate in a kind of large-scale high-precision installation simply, levelness aligning method fast, accurately.
Background technology
During industrial large-sized equipment construction is installed, the measuring method of its levelness centering has a lot.That in current construction method, commonly uses mainly contains two kinds, one is to measure with frame level or Optical Split-Image Levelling Instrument, the shortcoming of the method is poor stability, be subject to finished surface linearity tolerances, especially for larger equipment construction, stability is difficult to hold and cannot really reflect the levelness of whole plane, can only represent the levelness of regional area, although operating process can adopt leveling ruler subsidiary, precision also will be subject to the impact of leveling ruler, and operation is more loaded down with trivial details; Another kind is to adopt indium steel ruler and precision level conjunction measuring, although can ensure measuring accuracy, centering speed is slow, and the vertical chi operation of indium steel ruler accuracy varies with each individual, more difficult assurance.
Summary of the invention
What the present invention will solve is the measuring technique problem of levelness centering in main equipment installation process, and a kind of main equipment levelness fast aligning method is provided, can ensure in installation levelness simply, centering fast, accurately.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of main equipment levelness fast aligning method, comprises the steps:
(1) adjust precision level and determine its elevation graticule position;
(2) before equipment is installed, on equipment level degree installed surface, select four measuring point;
(3) after equipment is installed, utilize precision level conjunction measuring measurement device to go out the actual elevation of four measuring point, and adjust equipment, the actual elevation error of four measuring point is controlled within the scope of the 0.5mm of code requirement;
(4) in the first measurement point position, fix vernier caliper with magnetic stand, and adjust vernier 0 scale mark of vernier caliper, it is alignd with the elevation graticule of precision level, write down the now reading A of vernier caliper;
(5) vernier 0 scale mark of vernier caliper is adjusted on the numerical value of A-B and locking; Wherein B is the designed elevation difference of the second measurement point and the first measurement point;
(6) in the second measurement point position, fix vernier caliper with magnetic stand, and adjust equipment, vernier 0 scale mark of vernier caliper is alignd with the elevation graticule of precision level;
(7) vernier 0 scale mark of vernier caliper is adjusted on the numerical value of A-C and locking; Wherein C is the designed elevation difference of the 3rd measurement point and the first measurement point;
(8) in the 3rd measurement point position, fix vernier caliper with magnetic stand, and adjust equipment, vernier 0 scale mark of vernier caliper is alignd with the elevation graticule of precision level;
(9) vernier 0 scale mark of vernier caliper is adjusted on the numerical value of A-D and locking; Wherein D is the designed elevation difference of the 4th measurement point and the first measurement point;
(10) in the 4th measurement point position, fix vernier caliper with magnetic stand, and adjust equipment, vernier 0 scale mark of vernier caliper is alignd with the elevation graticule of precision level.
The invention has the beneficial effects as follows:
The present invention is in the time of main equipment levelness centering, adopt the absolute altitude of vernier caliper and precision level conjunction measuring different measuring point, and adjust backing plate according to designing requirement by equipment or adjust jackscrew and adjust equipment absolute altitude, can complete simply, fast, accurately the adjustment of main equipment installed height mark and horizontal accuracy.The method can make the measurement point vertical error precision of main equipment installed surface reach 0.02mm, and the method is used in the rotating shaft front and back reserved side-play amount of horizontal direction of BPRT unit Axial-Flow compressor, coal-gas turbine and measures detection above, more can embody the easy, quick, accurate, easy to operate of the method.
Brief description of the drawings
Fig. 1 is main equipment levelness fast aligning method schematic diagram provided by the present invention;
Fig. 2 is the partial enlarged drawing of A part in Fig. 1.
In figure: 1, equipment; 2, precision level; 3, vernier caliper; 4, magnetic stand.
Embodiment
For further understanding summary of the invention of the present invention, feature and effect, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As depicted in figs. 1 and 2, the present embodiment discloses a kind of main equipment levelness fast aligning method, can be simply, centering is measured fast, accurately.
Before by 1 installation of centering equipment, first adjusting precision level 2 can normally use, and utilizes precision level 2 to coordinate other measurement mechanism such as common mm scale value or Sopwith staff in vernier caliper 3, determines the elevation graticule position of precision level 2.The height of precision level 2 should meet and is suitable for that vernier caliper 3 is measured and the requirement of reading.
On equipment 1 levelness installed surface, select four measuring point.
After equipment 1 is installed, utilize precision level 2 to coordinate common mm scale value in vernier caliper 3 to measure the actual elevation of four measuring point, and adjust by the ram pack of centering equipment 1 or adjust jackscrew, so that the actual elevation error of four measuring point is controlled within the scope of the 0.5mm of code requirement.
In the first measurement point position, fix the vernier caliper 3 of 50 calibration with magnetic stand 4, and adjust vernier 0 scale mark of vernier caliper 3, it is alignd with the elevation graticule of precision level 2, write down the now reading A of vernier caliper 3.
Vernier 0 scale mark of vernier caliper 3 is adjusted on the numerical value of A-B and locking.Wherein, B is the designed elevation difference (the designed elevation of the second measurement point subtracts the designed elevation of the first measurement point) of the second measurement point and the first measurement point.If the designed elevation of the second measurement point and the first measurement point is without difference, B value is that the levelness between zero, two is also zero.
In the second measurement point position, fix the vernier caliper 3 of 50 calibration with magnetic stand 4, and adjust by the ram pack of centering equipment 1 or adjust jackscrew, vernier 0 scale mark of the second measurement point position vernier caliper 3 is alignd with the elevation graticule of precision level 2 again.
In like manner, vernier 0 scale mark of vernier caliper 3 is adjusted on the numerical value of A-C and locking.Wherein, C is the designed elevation difference (the designed elevation of the 3rd measurement point subtracts the designed elevation of the first measurement point) of the 3rd measurement point and the first measurement point.
In the 3rd measurement point position, fix the vernier caliper 3 of 50 calibration with magnetic stand 4, adjust by the ram pack of centering equipment 1 or adjust jackscrew, vernier 0 scale mark of the 3rd measurement point position vernier caliper 3 is alignd with the elevation graticule of precision level 2 again.
In like manner, vernier 0 scale mark of vernier caliper 3 is adjusted on the numerical value of A-D and locking.Wherein, D is the designed elevation difference (the designed elevation of the 4th measurement point subtracts the designed elevation of the first measurement point) of the 4th measurement point and the first measurement point.
In the 4th measurement point position, fix the vernier caliper 3 of 50 calibration with magnetic stand 4, adjust by the ram pack of centering equipment 1 or adjust jackscrew, vernier 0 scale mark of the 4th measurement point position vernier caliper 3 is alignd with the elevation graticule of precision level 2 again.
Can make each measurement point difference of elevation error precision of equipment 1 installed surface reach 0.02mm by said method, can be simply, the adjustment of finishing equipment 1 installed height mark and horizontal accuracy fast, accurately.And the method is used in before and after the rotating shaft of BPRT unit Axial-Flow compressor, coal-gas turbine the reserved thermal expansion amount of horizontal direction and measures and detected when upper, more can embody that it is easy, quick, accurate, easy to operate.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make the concrete conversion of a lot of forms, within these all belong to protection scope of the present invention.
Claims (1)
1. a main equipment levelness fast aligning method, is characterized in that, comprises the steps:
(1) adjust precision level and determine its elevation graticule position;
(2) before equipment is installed, on equipment level degree installed surface, select four measuring point;
(3) after equipment is installed, utilize precision level conjunction measuring measurement device to go out the actual elevation of four measuring point, and adjust equipment, the actual elevation error of four measuring point is controlled within the scope of the 0.5mm of code requirement;
(4) in the first measurement point position, fix vernier caliper with magnetic stand, and adjust vernier 0 scale mark of vernier caliper, it is alignd with the elevation graticule of precision level, write down the now reading A of vernier caliper;
(5) vernier 0 scale mark of vernier caliper is adjusted on the numerical value of A-B and locking; Wherein B is the designed elevation difference of the second measurement point and the first measurement point;
(6) in the second measurement point position, fix vernier caliper with magnetic stand, and adjust equipment, vernier 0 scale mark of vernier caliper is alignd with the elevation graticule of precision level;
(7) vernier 0 scale mark of vernier caliper is adjusted on the numerical value of A-C and locking; Wherein C is the designed elevation difference of the 3rd measurement point and the first measurement point;
(8) in the 3rd measurement point position, fix vernier caliper with magnetic stand, and adjust equipment, vernier 0 scale mark of vernier caliper is alignd with the elevation graticule of precision level;
(9) vernier 0 scale mark of vernier caliper is adjusted on the numerical value of A-D and locking; Wherein D is the designed elevation difference of the 4th measurement point and the first measurement point;
(10) in the 4th measurement point position, fix vernier caliper with magnetic stand, and adjust equipment, vernier 0 scale mark of vernier caliper is alignd with the elevation graticule of precision level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301882.5A CN104034307B (en) | 2014-06-27 | 2014-06-27 | Main equipment levelness fast aligning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301882.5A CN104034307B (en) | 2014-06-27 | 2014-06-27 | Main equipment levelness fast aligning method |
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| Publication Number | Publication Date |
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| CN104034307A true CN104034307A (en) | 2014-09-10 |
| CN104034307B CN104034307B (en) | 2016-04-20 |
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| CN201410301882.5A Active CN104034307B (en) | 2014-06-27 | 2014-06-27 | Main equipment levelness fast aligning method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520475A (en) * | 2018-12-29 | 2019-03-26 | 阳江核电有限公司 | Horizontal degree measurement calculation method in a kind of in-pile component installation process |
| CN112484706A (en) * | 2020-11-17 | 2021-03-12 | 中国水电建设集团十五工程局有限公司 | Large-scale equipment high-precision flange surface levelness adjusting method |
| CN113063390A (en) * | 2021-03-22 | 2021-07-02 | 重庆水轮机厂有限责任公司 | Method for detecting flatness of top cover of large water turbine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005091055A (en) * | 2003-09-16 | 2005-04-07 | Hitachi Industries Co Ltd | Apparatus and method for measuring levelness |
| CN201203394Y (en) * | 2008-06-12 | 2009-03-04 | 刘化交 | High precision detection scale for mechanical mounting |
| CN102589488A (en) * | 2012-02-20 | 2012-07-18 | 中国船舶重工集团公司第七一九研究所 | Optical vernier and method for detecting planeness and gradient using same |
-
2014
- 2014-06-27 CN CN201410301882.5A patent/CN104034307B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005091055A (en) * | 2003-09-16 | 2005-04-07 | Hitachi Industries Co Ltd | Apparatus and method for measuring levelness |
| CN201203394Y (en) * | 2008-06-12 | 2009-03-04 | 刘化交 | High precision detection scale for mechanical mounting |
| CN102589488A (en) * | 2012-02-20 | 2012-07-18 | 中国船舶重工集团公司第七一九研究所 | Optical vernier and method for detecting planeness and gradient using same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520475A (en) * | 2018-12-29 | 2019-03-26 | 阳江核电有限公司 | Horizontal degree measurement calculation method in a kind of in-pile component installation process |
| CN109520475B (en) * | 2018-12-29 | 2021-05-04 | 阳江核电有限公司 | Levelness measuring and calculating method in reactor internals installation process |
| CN112484706A (en) * | 2020-11-17 | 2021-03-12 | 中国水电建设集团十五工程局有限公司 | Large-scale equipment high-precision flange surface levelness adjusting method |
| CN113063390A (en) * | 2021-03-22 | 2021-07-02 | 重庆水轮机厂有限责任公司 | Method for detecting flatness of top cover of large water turbine |
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| Publication number | Publication date |
|---|---|
| CN104034307B (en) | 2016-04-20 |
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Address after: 300301 Dongli District, flawless Street Jintang Highway Bridge No. ten Patentee after: MCC TIANGONG GROUP TIANJIN CO., LTD. Address before: 300301 Dongli District, Tianjin street, Tianjin street, the twenty smelting Patentee before: Tianjin MCC20 Construction Co., Ltd. |