CN203432553U - Photoelectric axis turning measuring device for water turbine generator set - Google Patents
Photoelectric axis turning measuring device for water turbine generator set Download PDFInfo
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- CN203432553U CN203432553U CN201320595063.7U CN201320595063U CN203432553U CN 203432553 U CN203432553 U CN 203432553U CN 201320595063 U CN201320595063 U CN 201320595063U CN 203432553 U CN203432553 U CN 203432553U
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Abstract
A photoelectric axis turning measuring device for a water turbine generator set comprises a centering device. An upper bearing guiding collar of the engine is provided with a first ranging probe. An air gap of the engine is provided with a second ranging probe. A lower bearing guiding collar of the engine is provided with a third ranging probe. One end of an optical fiber is connected with a stabilizing counterweight, and the other end is connected with the centering device. A bearing guiding collar of the water turbine is provided with a fourth ranging probe and a light reflection receiving probe. An upper sealing ring and a lower sealing ring of a rotating wheel of the water turbine are respectively provided with a fifth ranging probe and a sixth ranging probe. According to the photoelectric axis turning measuring device for the water turbine generator set, concentricity of each rotatable component is measured through the ranging probes which are arranged on the bearing collars and the upper sealing ring and the lower sealing ring of the rotating wheel. Straightness of generator set axis and perpendicularity between the rotating axis and a thrust bearing are measured through causing the optical fiber to elevate by the centering device which is caused by a computer. The concentricity and axis perpendicularity of each bearing are adjusted according to the measured data, thereby realizing quick measurement and high-precision adjustment, and reducing assembling time.
Description
Technical field
The utility model relates to a kind of measurement mechanism, is specifically related to a kind of hydraulic generator unit photo electric axis Wire coil carriage measurement mechanism being applied in the dynamo-electric installation of hydroelectric project.
Background technology
In Hydropower Unit installation process, having a very important link is exactly jiggering, by jiggering, can check each rotatable parts throw of unit, concentricity, rotor clearance and unit axis verticality.And when hydropower unit axis jiggering checks, the conventional method of using is exactly with dial gauge, to monitor each rotating part throw at the position that will measure, still uses very traditional method: piano wire weight earphone mensuration when measuring unit axis verticality.Although these measuring methods are simple, have many disadvantages:
(1) traditional measurement method inefficiency.While measuring each rotating part throw of unit with dial gauge, in each measuring position, arrange and manually monitor that the reading of dial gauge changes; While adopting piano wire to add earphone mensuration measurement unit axis verticality and linearity, always want repeated measurement and adjust piano wire and carry out alignment.
(2) traditional measurement method accuracy is relatively low.While measuring as use piano wire earphone method, if there is vibration measuring point even slight vibration will affect measurement result.And modern hydraulic turbine packet size is all larger, macro-axis is all made hollow substantially, and by when the hangs inside piano wire, air in macro-axis is because have a strong impact on the stable of piano wire to failing to be convened for lack of a quorum.
(3) traditional measurement method confidence level is relatively low.Be both piano wire earphone mensuration, everyone is because of the difference of sensation, and the data of measuring often exist difference more or less.
(4) subjectivity and objective factor are relatively large to its error of traditional measurement method.Overwhelming majority precision measurement instrument is more responsive to environment temperature, while surveying unit linearity with piano wire, catches micrometer inside caliper repeated measurement alignment, as the temperature of longer human body of time will be easy to affect measurement result with hand.
Summary of the invention
The purpose of this utility model a kind of providing is provided and is applicable to horizontal, vertical hydrogenerator axis jiggering measurement calculation element.
The purpose of this utility model is achieved in that a kind of hydraulic generator unit photo electric axis Wire coil carriage measurement mechanism, comprise and ask heart device support, be provided with and ask heart device asking on heart device support, at generator top guide bearing axle neck place, be provided with the first range finding probe, at place, generator clearance, be provided with the second range finding type probe, at generator lower guide bearing axle neck place, be provided with the 3rd range finding probe, optical fiber one end is connected with stable weight, the other end is connected with asking heart device, turbine guide bearing axle neck place be provided with the 4th range finding probe and light reflection receivable is popped one's head in, on rotary wheel of water turbine, seal ring place is provided with the 5th range finding type probe, at rotary wheel of water turbine runner band seal place, be provided with the 6th range finding probe, stable weight is placed in oil drum.
The hydraulic generator unit photo electric axis Wire coil carriage measurement mechanism that the utility model provides, when hydraulic generator unit carries out axis jiggering in general assembly, by being distributed in the concentricity of each rotatable parts of range finding probe measurement throw calculating everywhere unit at each bearing shaft neck, the upper and lower seal ring of runner place; By computer-controlled high precision, ask heart device to control the verticality that unit axis verticality and rotation and thrust bearing are measured in special measuring optical fiber lifting; According to these computer measurement data, adjust concentricity, the axis verticality of each bearing, thereby realize Quick Measurement, the object that high precision is adjusted, saves final assembly lead time greatly.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 measuring principle schematic diagram.
Embodiment
Structure of the present utility model is as shown in Figure 1: a kind of hydraulic generator unit photo electric axis Wire coil carriage measurement mechanism, comprise and ask heart device support 12, be provided with and ask heart device 1 asking on heart device support 12, at generator top guide bearing axle neck place, be provided with the first range finding probe 2, at place, generator clearance, be provided with the second range finding type probe 3, at generator lower guide bearing axle neck place, be provided with the 3rd range finding probe 4, optical fiber 5 one end are connected with stable weight 10, the other end is connected with asking heart device 1, at turbine guide bearing axle neck place, be provided with the 4th range finding probe 6 and light reflection receivable probe 7, on rotary wheel of water turbine, seal ring place is provided with the 5th range finding type probe 8, at rotary wheel of water turbine runner band seal place, be provided with the 6th range finding probe 9, stablize weight 10 and be placed in oil drum 11.
Principle of work of the present utility model is as follows: when hydraulic generator unit carries out axis jiggering in general assembly, by being distributed in the concentricity of each rotatable parts of range finding probe measurement throw calculating everywhere unit at each bearing shaft neck, the upper and lower seal ring of runner place; By computer-controlled high precision, ask heart device to control the verticality that unit axis verticality and rotation and thrust bearing are measured in special measuring optical fiber lifting; According to these computer measurement data, adjust concentricity, the axis verticality of each bearing, thereby realize Quick Measurement, the object that high precision is adjusted, saves final assembly lead time greatly.
When using photoelectric method to measure rotary part throw, concentricity: send a control signal by computing machine, open light emission controller control laser or infrared transmitter and send one or more pulsed optical signals, light signal through reflecting piece (if surface of the work machining precision higher can without reflecting piece) reflect laggard enter optical signal receiver by optical signal feedback to photoelectric commutator, by photoelectric commutator, convert light signal to digital signal input computing machine again, last computing machine is exported measurement result with spreadsheet.
When jiggering is measured each position throw concentricity, take unit centre as a coordinate system of true origin definition, at water, lead, under lead and upper leading axle neck definition coordinate axis+Y respectively arranges a light signal transmitting and receiving transducer, then will pop one's head in and be connected with computing machine by photoelectric commutator with+x direction; Manually pull rotor, make rotor rotate 360 degree, computing machine sends light pulse signal and measures, circularity, throw and concentricity by computing machine with each position of formal output of chart.
When jiggering is measured unit axis verticality and linearity, specialty optical fiber is fixed on to higher the asking on heart device of special precision, by computer, control optical fiber lifting and adjust optical fiber and all around move.In the end of optical fiber shell, there are 4 symmetrical apertures, 4 little optical fiber ends are made to prism form (seeing A part in Fig. 1), on optical fiber, there is beam projecting/enter perforation c, when incident ray a is during with miter angle incident, incident ray a and reflection ray b are orthogonal, the light that laser/infrared transmitter is sent sends by optical fiber the light reflecting back to laser/infrared receiver by light reflection receivable probe after optical fiber is derived, again these information are fed back to photoelectric commutator, realize 4 symmetric points of same section measures simultaneously, after a section survey completes, by computer control, ask the reduction of heart device or rising measuring sonde to carry out next section survey.
Claims (1)
1. a hydraulic generator unit photo electric axis Wire coil carriage measurement mechanism, comprise and ask heart device support (12), it is characterized in that: be provided with and ask heart device (1) asking on heart device support (12), at generator top guide bearing axle neck place, be provided with the first range finding probe (2), at place, generator clearance, be provided with the second range finding type probe (3), at generator lower guide bearing axle neck place, be provided with the 3rd range finding probe (4), optical fiber (5) one end is connected with stable weight (10), the other end is connected with asking heart device (1), the 4th range finding that is provided with at turbine guide bearing axle neck place is popped one's head in (6) and light reflection receivable probe (7), on rotary wheel of water turbine, seal ring place is provided with the 5th range finding type probe (8), at rotary wheel of water turbine runner band seal place, be provided with the 6th range finding probe (9), stablize weight (10) and be placed in oil drum (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320595063.7U CN203432553U (en) | 2013-09-26 | 2013-09-26 | Photoelectric axis turning measuring device for water turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320595063.7U CN203432553U (en) | 2013-09-26 | 2013-09-26 | Photoelectric axis turning measuring device for water turbine generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432553U true CN203432553U (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320595063.7U Expired - Fee Related CN203432553U (en) | 2013-09-26 | 2013-09-26 | Photoelectric axis turning measuring device for water turbine generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203432553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157107A (en) * | 2020-02-05 | 2020-05-15 | 胡令江 | High-stability generator swing measuring device |
| CN115235341A (en) * | 2022-07-22 | 2022-10-25 | 福建棉花滩水电开发有限公司 | Hydropower station unit center measurement and adjustment calculation method thereof |
-
2013
- 2013-09-26 CN CN201320595063.7U patent/CN203432553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157107A (en) * | 2020-02-05 | 2020-05-15 | 胡令江 | High-stability generator swing measuring device |
| CN115235341A (en) * | 2022-07-22 | 2022-10-25 | 福建棉花滩水电开发有限公司 | Hydropower station unit center measurement and adjustment calculation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20170926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |