CN207351427U - A kind of vertical Hydropower Unit shaft centerline measurement device - Google Patents
A kind of vertical Hydropower Unit shaft centerline measurement device Download PDFInfo
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- CN207351427U CN207351427U CN201721375791.1U CN201721375791U CN207351427U CN 207351427 U CN207351427 U CN 207351427U CN 201721375791 U CN201721375791 U CN 201721375791U CN 207351427 U CN207351427 U CN 207351427U
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- laser displacement
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- displacement sensor
- sensor
- guide bearing
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Abstract
The utility model discloses a kind of vertical Hydropower Unit shaft centerline measurement device, including setting first group of digital laser displacement sensor on top guide bearing, second group of digital laser displacement sensor is set on lower guide bearing, 3rd group of digital laser displacement sensor is set on flange, 4th group of laser displacement sensor is set on water is led, in addition, a synchronous sensor is installed on top guide bearing.Sensor measurement data carries out communication transmission by wireless sending module and wireless receiving module, and is sent into PC machine.In the measurements, the laser displacement sensor for being coordinated each guide bearing and flange using synchronous sensor is measured, and achievees the purpose that automatic measurement, synchronous recording.The device has the characteristics that high certainty of measurement, Automatic survey, is easily installed operation.
Description
Technical field
It the utility model is related to a kind of vertical Hydropower Unit shaft centerline measurement device.
Background technology
Hydropower Unit shaft centerline measurement is a process important in Hydropower Unit installation process, the fine or not direct shadow of its quality
The safe and stable operation to Hydropower Unit installation quality and unit is rung, while required time length can also restrict the peace of whole unit
The time between overhauls(TBO) is filled, directly affects economy of power plant benefit.At present, in terms of jiggering measurement, almost all of power station still uses and sets
Dial gauge, and then artificial reading are put, calculates the data such as corresponding felt pad scraping amount, and then manually adjust unit axis.
But there is problems with for traditional dial gauge progress shaft centerline measurement that uses：（1）Efficiency is low：Measuring unit turns
During dynamic part throw, it is still necessary in the arrangement human hand monitoring record table change of each dial gauge measurement position；（2）Accuracy is relatively
It is low：During percentage meter reading, since different people feels different, there is some difference for reading, directly influences the accuracy of result；
（3）Measurement error is larger：Vertical Hydropower Unit axis test volume is relatively large, and staff passes in reading process in data
During passing, inevitably certain do over again is often resulted in there are certain human error in calculating process is adjusted.
The content of the invention
The utility model is the deficiency for existing dial gauge shaft centerline measurement method, there is provided it is a kind of by synchronous sensor and
What laser displacement sensor was mutually coordinated, automatic measurement mechanism, fast and accurately measuring unit axis throw.
The technical solution adopted in the utility model is：Top guide bearing, on lower guide bearing, on flange, water leads respectively
First group, second group, the 3rd group and the 4th group laser displacement sensor is set, in addition, setting a synchronization on top guide bearing
Sensor；Each sensor measurement data sends signal by corresponding wireless sending module, then is connect by wireless receiving module
The collection of letters number, and be sent into PC machine and handled.
Each group laser displacement sensor described in the utility model includes being arranged on two vertical axis of same level
Two laser displacement sensors.
Laser displacement sensor described in the utility model is digital laser displacement sensor.
Wireless sending module described in the utility model, wireless receiving module use radiofrequency signal.
The utility model can vertical Hydropower Unit axis throw during on-line measurement jiggering, and automatically every 45 ° into
Row record, high certainty of measurement, measuring speed are fast, are the effective means for solving traditional shaft centerline measurement method limitation.
Brief description of the drawings
Fig. 1 is the utility model apparatus structure schematic diagram.
Fig. 2 arranges schematic diagram for the utility model laser displacement sensor.
Fig. 3 is the utility model synchro measure schematic diagram.
Embodiment
Control attached drawing is illustrated below in conjunction with the utility model embodiment.
The vertical Hydropower Unit shaft centerline measurement device of the present embodiment includes 8 laser displacement sensors, 1 synchronous sensing
Device, 6 wireless communication modules and 1 PC machine（As shown in Figure 1）.First group of digital laser displacement is set on top guide bearing 6
Sensor, sets second group of digital laser displacement sensor on lower guide bearing 4, and the 3rd group of setting is digital on flange 3
Laser displacement sensor, the 4th group of laser displacement sensor of setting on 2 is led in water, in addition, setting one on top guide bearing 6 together
Walk sensor.Sensor measurement data transmits wirelessly mould by the first wireless sending module 8, the second wireless sending module the 9, the 3rd
10 and the 4th wireless sending module 11 of block sends signal, and a step sensor sends signal by synchronous radio sending module 7,
Signal is received by wireless receiving module 12, and is sent into PC machine 13.
Synchronous sensor be installed on 6 polished surface of top guide bearing it is cylindrical on, and in the +X direction patch of corresponding installation circumference
A piece of thin magnet.
6 polished surface of top guide bearing it is cylindrical on, respectively arrange a laser displacement sensor according to+X, +Y direction（Such as
Shown in Fig. 2）；4 polished surface of lower guide bearing it is cylindrical on, respectively arrange a laser displacement sensor according to+X, +Y direction, such as
X phases laser displacement sensor 14, Y-direction laser displacement sensor 15；3 polished surface of flange it is cylindrical on, according to+X, +Y direction
Respectively one laser displacement sensor of arrangement；2 polished surface of water pilot bearing it is cylindrical on, respectively arrange one according to+X, +Y direction
Laser displacement sensor.
The synchronous sensor arranged at top guide bearing 6 is connected with synchronous radio transmitting module 7.
Two laser displacement sensors arranged at top guide bearing 6 are connected with the first wireless transmitter module 8.
Two laser displacement sensors arranged at lower guide bearing 4 are connected with the second wireless transmitter module 9.
Two laser displacement sensors arranged at flange 3 are connected with the 3rd wireless transmitter module 10.
Two laser displacement sensors arranged at water pilot bearing 2 are connected with the 4th wireless transmitter module 11.
Wireless receiving module 12 is connected with PC machine 13.
First wireless transmitter module 8, the second wireless transmitter module 9, the 3rd wireless transmitter module 10, the 4th wireless transmission mould
Block 11, wireless receiving module 12 use radiofrequency signal.
Measuring method of the present invention has two kinds, at shaft centerline measurement scene according to electric barring, can measure by the following method：1、
After device installs, confirm that each element can be with normal communication；2nd, slow at the uniform velocity rotating machine sets 3 weeks；3rd, PC machine records correlation automatically
Data.
This method measuring principle is as follows：When unit slowly at the uniform velocity rotates, the thin magnet pasted at top guide bearing 6 skims over together
When walking sensor, synchronous sensor can sense the signal, and start timing, when thin magnet skims over synchronous sensor for the second time
When, synchronous sensor can calculate the interval time skimmed over twice automatically, calculate required time when unit rotates 45 °.And thin
When magnet skims over synchronous sensor for the second time, synchronous sensor starts timing, and the integral multiples of 45 ° of times is turned over when the time reaches
When, synchronous sensor sends signal, each laser displacement sensor measuring unit throw of automatic synchronization, and records（As shown in Figure 3）.
If scene is without electric barring equipment, or during the artificial jiggering of use of scene, measuring method of the present invention is as follows：1st, led upper
Every 45 ° of marks on the excircle of bearing 6；2nd, after device installs, confirm that each element can be with normal communication；3rd, machine is manually promoted
Group rotation, during every mark point, transfers laser displacement sensor using PC machine and carries out throw measurement, and record.
This method measuring principle is as follows：Manually on the excircle of top guide bearing 6 every 45 ° mark, when unit rotate to
Stop rotating during mark point, manually transferring laser displacement sensor using PC machine carries out throw measurement, and records.
Claims (4)
1. a kind of vertical Hydropower Unit shaft centerline measurement device, is characterized in that：Top guide bearing, on lower guide bearing, on flange, water
Lead and first group, second group, the 3rd group and the 4th group laser displacement sensor is set respectively, in addition, being set on top guide bearing
One synchronous sensor；Each sensor measurement data sends signal by corresponding wireless sending module, then by wirelessly connecing
Receive module and receive signal, and be sent into PC machine and handled.
2. vertical Hydropower Unit shaft centerline measurement device as claimed in claim 1, is characterized in that：Every group of laser displacement sensor bag
Include two laser displacement sensors being arranged on two vertical axis of same level.
3. vertical Hydropower Unit shaft centerline measurement device as claimed in claim 1 or 2, is characterized in that：Laser displacement sensor is
Digital laser displacement sensor.
4. vertical Hydropower Unit shaft centerline measurement device as claimed in claim 1 or 2, is characterized in that：It is wireless sending module, wireless
Receiving module uses radiofrequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721375791.1U CN207351427U (en) | 2017-10-24 | 2017-10-24 | A kind of vertical Hydropower Unit shaft centerline measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721375791.1U CN207351427U (en) | 2017-10-24 | 2017-10-24 | A kind of vertical Hydropower Unit shaft centerline measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207351427U true CN207351427U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721375791.1U Active CN207351427U (en) | 2017-10-24 | 2017-10-24 | A kind of vertical Hydropower Unit shaft centerline measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677236A (en) * | 2017-10-24 | 2018-02-09 | 南昌工程学院 | A kind of vertical Hydropower Unit shaft centerline measurement device and its measuring method |
| CN113091654A (en) * | 2021-04-20 | 2021-07-09 | 郑州机械研究所有限公司 | Method for measuring appearance axis of special-shaped aircraft |
-
2017
- 2017-10-24 CN CN201721375791.1U patent/CN207351427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677236A (en) * | 2017-10-24 | 2018-02-09 | 南昌工程学院 | A kind of vertical Hydropower Unit shaft centerline measurement device and its measuring method |
| CN113091654A (en) * | 2021-04-20 | 2021-07-09 | 郑州机械研究所有限公司 | Method for measuring appearance axis of special-shaped aircraft |
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