CN210198354U - Generator rotor roundness measuring device - Google Patents
Generator rotor roundness measuring device Download PDFInfo
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- CN210198354U CN210198354U CN201920740660.1U CN201920740660U CN210198354U CN 210198354 U CN210198354 U CN 210198354U CN 201920740660 U CN201920740660 U CN 201920740660U CN 210198354 U CN210198354 U CN 210198354U
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Abstract
The utility model discloses a generator rotor roundness measuring device, including main measuring apparatu, survey separation blade and a plurality of supplementary distancer, main measuring apparatu is installed and is put at the rotor central point that awaits measuring, surveys the separation blade setting at the rotor surface numerical direction that awaits measuring to install the not co-altitude position at surveying the separation blade respectively with supplementary distancer. Adopt the utility model discloses can simplify measuring equipment, not survey the circle frame in needs, it is high to have measurement accuracy, and the interference killing feature is strong, and operation and reading are convenient, do not receive the influence of mechanical parts machining error or deformation, and non-contact measurement surface need not polish advantages such as cleaning in advance to overcome prior art's not enough.
Description
Technical Field
The utility model relates to a roundness measuring tool technical field particularly, relates to a generator rotor roundness measuring device.
Background
The measurement of the roundness of the generator rotor is a key step in processing, manufacturing, assembling, mounting, overhauling and maintenance, and is an important basis for detecting whether equipment is qualified or not and whether the equipment meets the national standard or not. At present, the roundness of the rotor is measured by matching a special rotor circle measuring frame with an inner diameter micrometer or a dial indicator. A circle measuring frame support is arranged on the rotor through a flange, a circle measuring frame matched with the rotor is arranged on the support, a vertical measuring rod is arranged at the front end of the circle measuring frame, a dial indicator is arranged on the measuring rod corresponding to a selected measuring point of the rotor, the measuring rod is manually pushed to rotate, and reading is stopped at the corresponding measuring point. Because of survey circle frame size great, the cantilever is very easily taken place deformation and every magnetic pole in the measurement process all will stop, causes the measuring staff vibrations big, and the stop position is uncertain, leads to the reading error great, can't accurately express the maintenance used data, and present measurement method measuring speed is slower, needs a large amount of manpower and materials usually, spends a long time, has seriously influenced work quality and job schedule. The front end measuring element of the rotor circle measuring frame is also transformed into an electric measuring element by a specific unit and mechanism, although the current situation that a dial indicator or a micrometer is manually measured and has larger reading error is changed, the reading speed and the measuring accuracy are improved to a certain degree by utilizing the inherent accuracy of the electric measuring element, the related measuring element still needs to be installed and fixed on the circle measuring frame, the mechanical deformation of the circle measuring frame and the machining error in the rotating process cannot be avoided, and the accuracy of the rotor circle measuring data cannot be fundamentally improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a generator rotor roundness measuring device simplifies measuring equipment, does not survey the circle frame in needs, and it is high to have a measurement accuracy, and the interference killing feature is strong, and operation and reading are convenient, do not receive the influence of mechanical parts machining error or deformation, and non-contact measurement surface need not polish in advance and clean advantages such as to overcome prior art's not enough.
In order to achieve the technical purpose, the utility model discloses a technical scheme specifically as follows:
the utility model provides a generator rotor roundness measuring device, includes the support that is used for installing on the rotor upper portion that awaits measuring, its characterized in that: the rotor measuring device is characterized by further comprising a main measuring instrument, a detecting separation blade and a plurality of auxiliary distance measuring instruments, wherein the main measuring instrument is arranged in the center of the rotor to be measured, the detecting separation blade is arranged in the vertical direction of the outer surface of the rotor to be measured, and the auxiliary distance measuring instruments are respectively arranged at different height positions of the detecting separation blade.
Further, be provided with a plurality of magnetic force on the detection separation blade and adsorb adjusting device and level bar, and survey separation blade one side and seted up a plurality of supplementary distancer mounting grooves, set up three and above supplementary distancer in the mounting groove.
Furthermore, the auxiliary distance measuring instrument is a non-contact electromagnetic induction distance measuring instrument, and each auxiliary distance measuring instrument is installed in one installation groove respectively. The auxiliary distance measuring instrument can adjust the position and the distance between every two auxiliary distance measuring instruments up and down according to the actual measuring range and can be fixed in the mounting groove.
Furthermore, the detection separation blade is adsorbed on the surface of the magnetic pole of the rotor to be detected by means of magnetic force through the magnetic adsorption adjusting device.
The magnetic adsorption adjusting device can adjust the installation range up and down according to the actual height of the rotor.
Furthermore, the detection separation blade is a rigid part and is vertically arranged on the outer circumference of the magnetic pole of the rotor to be detected, and the integral deflection along the length direction is less than 10 microns.
Further, the main measuring instrument comprises a positioning support, a distance measuring instrument and a turntable for controlling the distance measuring instrument to rotate.
The distance measuring instrument is an automatic distance measuring instrument which is reliable and mature in technology such as a photoelectric type distance measuring instrument, the measuring range is 500mm-10000mm, and the measuring precision is within 50 mu m.
Furthermore, a horizontal sensor is arranged in the turntable, and scales or a display screen capable of displaying levelness in real time are arranged on the surface of the turntable.
Further, the positioning bracket is provided with a telescopic bracket rod. The telescopic support rod is used for adjusting the height of the support and can adopt a threaded telescopic structure or other existing mechanical structures.
The beneficial effects of the utility model reside in that: the utility model discloses be different from prior art, the utility model discloses a roundness measuring device uses main distancer to measure the distance between the detection separation blade of main distancer probe and rotor excircle department, uses the supplementary distancer on the detection separation blade, measures the distance of separation blade and rotor excircle magnetic pole surface measurement station. The difference between the measuring distances of the main distance meter and the auxiliary distance meter is the relative value of the radius of the measuring point, and the roundness of the rotor can be analyzed by rotating a circle to measure all the relative values of the radius.
Drawings
Fig. 1 is a schematic structural view of a roundness measuring device for a generator rotor provided by the present invention.
Reference numerals:
the device comprises a rotor to be measured 1, a magnetic pole 2, a buttress 3, a positioning support 4, a turntable 5, a main distance meter 6, a detection separation blade 7, an auxiliary distance meter 8, a magnetic adsorption adjusting device 9 and a horizontal ruler 10.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
As shown in figure 1, the roundness measuring device for the generator rotor comprises a bracket for mounting a rotor 1 to be measured, and the bracket for mounting the rotor 1 to be measured
Still include main measuring apparatu, survey separation blade 7 and a plurality of supplementary distancer 8, main measuring apparatu sets up in the rotor 1 central point that awaits measuring and puts, surveys separation blade 7 and sets up in the vertical direction of the rotor 1 surface that awaits measuring to install the not co-altitude position at surveying separation blade 7 respectively with supplementary distancer 8.
A plurality of magnetic adsorption adjusting devices 9 and a level bar 10 are arranged on the detection separation blade 7, and a plurality of auxiliary distance measuring instrument 8 mounting grooves are formed in one side of the detection separation blade 7. The detection separation blade 7 is adsorbed on the surface of the magnetic pole 2 of the rotor 1 to be detected by magnetic force through a magnetic adsorption adjusting device 9. The magnetic adsorption adjusting device 9 can adjust the installation range up and down according to the actual height of the rotor. The detection separation blade 7 is a rigid part and is vertically arranged on the outer circumference of the magnetic pole 2 of the rotor 1 to be detected.
The main measuring instrument comprises a positioning support 4, a distance measuring instrument and a rotary disc 5 for controlling the distance measuring instrument to rotate. The distance measuring instrument is an automatic distance measuring instrument which is reliable and mature in technology such as a photoelectric type distance measuring instrument, the measuring range is 500mm-10000mm, and the measuring precision is within 50 mu m. The turntable 5 is internally provided with a horizontal sensor, and scales or a display screen capable of displaying levelness in real time are arranged on the surface of the turntable. The positioning bracket 4 is provided with a telescopic bracket rod. The telescopic support rod is used for adjusting the height of the support and can adopt a threaded telescopic structure or other existing mechanical structures.
When in actual use, the distance measuring instrument of the utility model adopts an automatic distance measuring instrument with reliable and mature technologies such as photoelectric type and the like, the measuring range is required to be 500mm-10000mm, and the measuring precision is within 50 mu m; the auxiliary distance measuring instrument 8 adopts a non-contact electromagnetic induction distance measuring instrument, the influence of dirt on the surface of a measured component can be eliminated, the measuring range is 0mm-50mm, and the measuring precision is not more than 10 mu m.
Firstly, a rotor of a motor to be measured is placed on a buttress 3, then a main measuring instrument is installed at the central position of the motor to be measured, a magnetic adsorption adjusting device 9 is utilized to adsorb a detection separation blade 7 on the outer circumference of a rotor magnetic pole 2 of the motor, the height is adjusted, meanwhile, a horizontal ruler 10 on the detection separation blade 7 is utilized to adjust the verticality, and the integral deflection along the length direction is less than 10 microns. The number of the magnetic adsorption adjusting devices 9 is at least two, the detection blocking pieces 7 can be stabilized only by two supporting points, and certainly, the number of the magnetic adsorption adjusting devices 9 is not limited to be only two, and can be adjusted quantitatively according to needs. And the horizontal sensor arranged in the turntable 5 is used for adjusting the main range finder 6 in the horizontal direction, so that the overlarge measurement error is avoided.
The main distance meter 6 measures the distance between the probe of the main distance meter 6 and the detection separation blade 7 at the excircle of the rotor, and the auxiliary distance meter on the detection separation blade 7 is used for measuring the distance between the separation blade and the surface measuring point of the excircle magnetic pole 2 of the rotor. The difference between the measuring distances of the main distance meter 6 and the auxiliary distance meter is the relative value of the radius of the measuring point. And measuring all relative values of the radius by one rotation, and analyzing the roundness of the rotor. The utility model discloses directly need not survey round frame, it is high to have measurement accuracy, and the interference killing feature is strong, and operation and reading are convenient, do not receive the influence of machine part machining error or deformation, and non-contact measurement surface need not polish in advance advantages such as cleaning.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a generator rotor roundness measuring device, includes the support that is used for installing the rotor that awaits measuring, its characterized in that: the rotor measuring device is characterized by further comprising a main measuring instrument, a detecting separation blade and a plurality of auxiliary distance measuring instruments, wherein the main measuring instrument is installed in the center of the rotor to be measured, the detecting separation blade is arranged in the numerical direction of the outer surface of the rotor to be measured, and the auxiliary distance measuring instruments are installed at different height positions of the detecting separation blade respectively.
2. The generator rotor roundness measuring apparatus according to claim 1, characterized in that: a plurality of magnetic adsorption adjusting devices and a level bar are arranged on the detection blocking piece, and a plurality of auxiliary distance measuring instrument mounting grooves are formed in one side of the detection blocking piece.
3. The generator rotor roundness measuring apparatus according to claim 2, wherein: the auxiliary distance measuring instrument is a non-contact electromagnetic induction distance measuring instrument, and each auxiliary distance measuring instrument is installed in one installation groove respectively.
4. The generator rotor roundness measuring apparatus according to claim 1, characterized in that: the detection separation blade is adsorbed on the magnetic pole surface of the rotor to be detected by means of magnetic force through the magnetic adsorption adjusting device.
5. The generator rotor roundness measuring apparatus according to claim 1, characterized in that: the detection separation blade is a rigid piece and is vertically arranged on the outer circumference of the magnetic pole of the rotor to be detected, and the integral deflection along the length direction is less than 10 mu m.
6. The generator rotor roundness measuring apparatus according to claim 1, characterized in that: the main measuring instrument comprises a positioning support, a distance measuring instrument and a turntable for controlling the distance measuring instrument to rotate.
7. The generator rotor roundness measuring apparatus according to claim 6, wherein: the turntable is internally provided with a horizontal sensor, and scales or a display screen capable of displaying levelness in real time are arranged on the surface of the turntable.
8. The generator rotor roundness measuring apparatus according to claim 6, wherein: the positioning bracket is provided with a telescopic bracket rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920740660.1U CN210198354U (en) | 2019-05-22 | 2019-05-22 | Generator rotor roundness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920740660.1U CN210198354U (en) | 2019-05-22 | 2019-05-22 | Generator rotor roundness measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN210198354U true CN210198354U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920740660.1U Active CN210198354U (en) | 2019-05-22 | 2019-05-22 | Generator rotor roundness measuring device |
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| CN (1) | CN210198354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307815A (en) * | 2019-07-02 | 2019-10-08 | 天津市天发重型水电设备制造有限公司 | A kind of hydraulic generator rotor survey circle device |
-
2019
- 2019-05-22 CN CN201920740660.1U patent/CN210198354U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307815A (en) * | 2019-07-02 | 2019-10-08 | 天津市天发重型水电设备制造有限公司 | A kind of hydraulic generator rotor survey circle device |
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