CN216160161U - System for monitoring running state of main shaft of photoelectric non-contact wind driven generator in real time - Google Patents
System for monitoring running state of main shaft of photoelectric non-contact wind driven generator in real time Download PDFInfo
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- CN216160161U CN216160161U CN202121972351.0U CN202121972351U CN216160161U CN 216160161 U CN216160161 U CN 216160161U CN 202121972351 U CN202121972351 U CN 202121972351U CN 216160161 U CN216160161 U CN 216160161U
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- driven generator
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Abstract
The utility model discloses a photoelectric non-contact wind driven generator main shaft running state real-time monitoring system, which relates to the field of photoelectric monitoring and comprises a laser light source, a collimating optical system, a laser distance measuring unit, a dove prism, a PSD photoelectric sensor, a convergence optical system, an embedded real-time data processing unit and a G wireless transmission module. The utility model adopts the improved non-contact laser triangulation method to measure the parameters of radial run-out, axial displacement and the like of the main shaft of the wind driven generator, and has the advantages of high efficiency, high reliability, wide diameter change application range, strong anti-interference capability and the like.
Description
Technical Field
The utility model relates to the technical field of photoelectric monitoring, in particular to a system for monitoring the running state of a main shaft of a photoelectric non-contact wind driven generator in real time.
Background
The wind power generation set blade drives the main shaft to rotate, in the process, vibration and axial thrust of the blade are all transmitted to the main shaft, so that the main shaft in the wind power generation set generates phenomena of axial movement, shaft shoulder radial movement, axis inclination and the like in the rotating process, the main shaft with different bearing degrees moves backwards along with the increase of the operation time of the wind power generation set, the main shaft bearing generates fatigue damage due to the vibration and the backward movement of the main shaft, metal powder is generated by the damage, the powder is doped in lubricating grease to continuously accelerate the bearing wear, the general appearance is that the main bearing is high temperature, and finally potential safety hazards are generated, if the treatment is not timely, irrecoverable huge loss can be finally caused, parameters detected by the main shaft of the wind power generation set comprise parameters of radial movement, axial displacement movement, axis inclination and the like of each section of an axle, and in order to ensure the stable operation of the wind power generation set, the method is characterized in that the laser triangulation method has the characteristics of non-contact, surface damage prevention, wide material adaptability, simple structure, large measurement distance, strong anti-interference capability, small measurement point, high measurement accuracy, real-time online rapid measurement and the like, and is applied to the field of geometric measurement, such as roundness error online detection technology, plate online thickness measurement system, railway wagon bottom overrun measurement system, three-dimensional surface morphology measurement and the like.
In the prior art, the traditional optical triangulation method can only realize point measurement, a plurality of laser measuring devices are generally needed for axis measurement, the influence of the shape and size of a measured piece on the precision of a measuring system is large, a plurality of parameters to be detected are needed, the detection result requires high precision, high efficiency, high reliability and the like, and therefore a real-time monitoring system for the running state of a main shaft of a photoelectric non-contact wind driven generator is needed to meet the requirements of people.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a system for monitoring the running state of a main shaft of a photoelectric non-contact wind driven generator in real time, which aims to solve the problem that the system for monitoring the running state of the main shaft of the photoelectric non-contact wind driven generator in real time, which is provided in the background art, mainly aims at the phenomena of axial movement, shaft shoulder radial run-out, axis inclination and the like of the main shaft in the wind driven generator set in the rotating process.
In order to achieve the purpose, the utility model provides the following technical scheme: the system comprises a laser light source, a collimation optical system, a laser distance measuring unit, a dove prism, a PSD photoelectric sensor, a convergence optical system, an embedded real-time data processing unit and a G wireless transmission module, wherein the laser light source is fixedly arranged on one side of the collimation optical system, the PSD photoelectric sensor is fixedly arranged on one side of the convergence optical system, the input end of the laser light source is connected with the output end of the embedded real-time data processing unit, and the input end of the PSD photoelectric sensor is connected with the output end of the embedded real-time data processing unit.
Preferably, the output end of the laser light source is connected with the input end of the collimating optical system.
Preferably, the output end of the converging optical system is connected with the input end of the PSD photoelectric sensor.
Preferably, the input end of the embedded real-time data processing unit is connected with the output end of the G wireless transmission module.
Preferably, the input end of the laser ranging unit is connected with the input end of the embedded real-time data processing unit.
Preferably, a measured shaft is fixedly mounted on one side of the dove prism, which is far away from the laser ranging unit.
The utility model has the beneficial effects that:
according to the utility model, the accuracy of the measuring system can be effectively improved, the measuring stability is ensured, the measuring efficiency of the measuring system is improved, and the precision of the measuring system is ensured.
The method adopts the improved non-contact laser triangulation method to measure parameters such as radial runout, axial displacement and the like of the main shaft of the wind driven generator, and has the advantages of high efficiency, high reliability, wide diameter change application range, strong anti-interference capability and the like.
Drawings
FIG. 1 is a system block diagram of a system for monitoring the operation state of a main shaft of a photoelectric non-contact wind driven generator in real time, which is provided by the utility model;
FIG. 2 is a system operation schematic diagram of a photoelectric non-contact wind driven generator main shaft operation state real-time monitoring system provided by the utility model;
fig. 3 is a schematic diagram of detecting the axial inclination and radial play of the system for monitoring the running state of the main shaft of the photoelectric non-contact wind driven generator in real time.
In the figure: 1. a laser light source; 2. a collimating optical system; 3. a laser ranging unit; 4. a dove prism; 5. a PSD photoelectric sensor; 6. a converging optical system; 7. an embedded real-time data processing unit; 8. 4G wireless transmission module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, the system for monitoring the running state of the main shaft of the photoelectric non-contact wind driven generator in real time comprises a laser light source 1, a collimating optical system 2, a laser ranging unit 3, a dove prism 4, a PSD photoelectric sensor 5, a converging optical system 6, an embedded real-time data processing unit 7 and a 4G wireless transmission module 8, wherein the laser light source 1 is fixedly arranged at one side of the collimating optical system 2, the PSD photoelectric sensor 5 is fixedly arranged at one side of the converging optical system 6, the input end of the laser light source 1 is connected with the output end of the embedded real-time data processing unit 7, the input end of the PSD photoelectric sensor 5 is connected with the output end of the embedded real-time data processing unit 7, the laser light source 1 emits light beams, the light beams are collimated by the collimating optical system 2 and then enter the D1 reflecting surface of the dove prism 3 attached to the circumference of the main shaft, and the laser beams are reflected to the D2 surface of the dove prism 3 and then emitted again, the light is imaged on the PSD photoelectric sensor 5 through the convergence optical system 6, when the measured spindle has axial float, radial run-out and axis inclination, the dove prism 4 on the measured spindle is driven to have position change, the position of an imaging point on the PSD photoelectric sensor 5 is further caused to change, and then corresponding spindle dynamic parameters are calculated according to the mapping relation among an incident light spot, the dove prism 4 and a projection point.
In the utility model, the output end of a laser light source 1 is connected with the input end of a collimation optical system 2, and light beams output by the laser light source 1 are collimated by the collimation optical system 2.
In the utility model, the output end of the converging optical system 6 is connected with the input end of the PSD photoelectric sensor 5, and after a light beam is reflected and is received by the converging optical system 6, a light spot of the light beam is imaged on the PSD photoelectric sensor 5.
In the utility model, the input end of the embedded real-time data processing unit 7 is connected with the output end of the 4G wireless transmission module 8, and the embedded real-time data processing unit 7 is controlled by the 4G wireless transmission module 8 to command the laser light source 1.
In the utility model, the input end of the laser ranging unit 3 is connected with the input end of the embedded real-time data processing unit 7
In the utility model, a measured shaft is fixedly arranged on one side of the dove prism 4, which is far away from the laser ranging unit 3, and the dove prism 4 is used for refracting light beams.
The working principle of the utility model is as follows:
the laser light source 1 emits light beams, the light beams are collimated by the collimating optical system 2 and then enter a D1 reflecting surface of a dove prism 3 attached to the circumference of a spindle, the laser light is reflected to a D2 surface of the dove prism 3 and then emitted again, the light beams are imaged on a PSD photoelectric sensor 5 through the converging optical system 6, when a spindle to be measured generates axial movement, radial run-out and axis inclination, the dove prism 4 on the spindle to be measured is driven to generate position change, the position of an imaging point on the PSD photoelectric sensor 5 is further changed, and then corresponding spindle dynamic parameters are calculated according to the mapping relation among an incident light spot, the dove prism 4 and a projection point, wherein the radial run-out is mainly obtained by ranging through the laser ranging unit 3, and the axis inclination is measured through calculation;
the axis inclination measurement calculation method comprises the following steps: referring to fig. 3, when the initial OA ray is projected to the PSD center O (x 0, z 0) point, and when the axis of the spindle is tilted, and the projected point after shaking falls on P (x 1, z 1), the run-out of the measured spindle cross-section at this time is:
wherein Δ x = x0-x1, Δ z = z0-z1, and Δ y is detected by the laser ranging module.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. Photoelectric non-contact aerogenerator main shaft running state real-time monitoring system, including laser light source (1), collimation optical system (2), laser ranging unit (3), dove prism (4), PSD photoelectric sensor (5), assemble optical system (6), embedded real-time data processing unit (7) and 4G wireless transmission module (8), its characterized in that: the laser light source (1) is fixedly arranged on one side of the collimating optical system (2), the PSD photoelectric sensor (5) is fixedly arranged on one side of the converging optical system (6), the input end of the laser light source (1) is connected with the output end of the embedded real-time data processing unit (7), and the input end of the PSD photoelectric sensor (5) is connected with the output end of the embedded real-time data processing unit (7).
2. The system for monitoring the operation state of the main shaft of the photoelectric non-contact wind driven generator in real time according to claim 1, wherein: the output end of the laser light source (1) is connected with the input end of the collimating optical system (2).
3. The system for monitoring the operation state of the main shaft of the photoelectric non-contact wind driven generator in real time according to claim 1, wherein: the output end of the convergence optical system (6) is connected with the input end of the PSD photoelectric sensor (5).
4. The system for monitoring the operation state of the main shaft of the photoelectric non-contact wind driven generator in real time according to claim 1, wherein: the input end of the embedded real-time data processing unit (7) is connected with the output end of the 4G wireless transmission module (8).
5. The system for monitoring the operation state of the main shaft of the photoelectric non-contact wind driven generator in real time according to claim 1, wherein: the input end of the laser ranging unit (3) is connected with the input end of the embedded real-time data processing unit (7).
6. The system for monitoring the operation state of the main shaft of the photoelectric non-contact wind driven generator in real time according to claim 1, wherein: and a measured shaft is fixedly arranged on one side of the dove prism (4) far away from the laser ranging unit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972351.0U CN216160161U (en) | 2021-08-21 | 2021-08-21 | System for monitoring running state of main shaft of photoelectric non-contact wind driven generator in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972351.0U CN216160161U (en) | 2021-08-21 | 2021-08-21 | System for monitoring running state of main shaft of photoelectric non-contact wind driven generator in real time |
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| Publication Number | Publication Date |
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| CN216160161U true CN216160161U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121972351.0U Active CN216160161U (en) | 2021-08-21 | 2021-08-21 | System for monitoring running state of main shaft of photoelectric non-contact wind driven generator in real time |
Country Status (1)
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| CN (1) | CN216160161U (en) |
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2021
- 2021-08-21 CN CN202121972351.0U patent/CN216160161U/en active Active
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