CN110702214A - Shaft vibration monitoring system and method for flying spot device - Google Patents
Shaft vibration monitoring system and method for flying spot device Download PDFInfo
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- CN110702214A CN110702214A CN201810753672.8A CN201810753672A CN110702214A CN 110702214 A CN110702214 A CN 110702214A CN 201810753672 A CN201810753672 A CN 201810753672A CN 110702214 A CN110702214 A CN 110702214A
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- shaft vibration
- flying spot
- shaft
- value
- spot device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The invention discloses a shaft vibration monitoring system for a flying spot device, which comprises a shaft vibration monitoring device, a shaft vibration monitoring device and a shaft vibration monitoring device, wherein the shaft vibration monitoring device is used for monitoring the shaft vibration of the flying spot device; and the control system is connected to the shaft vibration monitoring device and the driving device for driving the flying spot device to rotate and is used for controlling the driving device according to the monitored shaft vibration. The shaft vibration value of the flying spot device can be monitored to monitor the stress and the running state of the flying spot device in real time, so that the mechanical damage which possibly occurs when the stress reaches the limit state in the high-speed rotating process of the flying spot device is avoided, the safety of equipment is ensured, and the early warning and protection effects are achieved. The invention also discloses a shaft vibration monitoring method for the flying spot device.
Description
Technical Field
The present invention relates to the field of radiation imaging, and more particularly, to a shaft vibration monitoring system and method for a flying spot device.
Background
According to the imaging principle of back scattering, a backscatter inspection device, especially a backscatter inspection vehicle, needs a flying spot device to generate flying spots to ensure that a series of flying spots are generated at longitudinal positions by taking columns as units, and a system collects the transverse and longitudinal position information of each scanning spot to obtain a complete scanning image, so that the flying spot device needs to rotate repeatedly. The flying spot device of the backscatter inspection vehicle is scanned in columns, i.e. in the longitudinal position, the scanning is done in sequence in points to complete one column and then the next column. When the flying spot device works, the flying spot device rotates at a high speed, the stress of the flying spot device reaches a limit value to cause mechanical damage, the stress state of the flying spot device is changed in the rotating process, and accordingly the shaft vibration value of the flying spot device changes in a certain trend. Although the existing radiation scanning equipment can perform security check tasks, the mechanical damage of the flying spot device is easily caused and the safety is poor because the stress state of the flying spot device is not considered.
In view of the problems in the prior art, a monitoring system and method are needed to monitor the shaft vibration value of the flying spot device so as to monitor the running state of the flying spot device in real time, thereby achieving the functions of early warning and protection.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a shaft vibration monitoring system and method for a flying spot device, so as to monitor a shaft vibration value of the flying spot device, so as to monitor a stress and an operation state of the flying spot device in real time, avoid a mechanical damage that may occur when the stress of the flying spot device reaches a limit state during a high-speed rotation of the flying spot device, ensure safety of equipment, and achieve an early warning and protection effect.
In view of the above object, an aspect of the embodiments of the present invention provides a shaft vibration monitoring system for a flying spot device, including:
the shaft vibration monitoring device is used for monitoring the shaft vibration of the flying spot device;
and the control system is connected to the shaft vibration monitoring device and the driving device for driving the flying spot device to rotate and is used for controlling the driving device according to the monitored shaft vibration.
According to another embodiment of the present invention, a shaft vibration monitoring device includes:
the shaft vibration probe is arranged close to the rotating shaft of the flying spot device and used for detecting the vibration value of the rotating shaft;
and the shaft vibration transmitting protection meter is connected to the shaft vibration probe and is used for changing the vibration value of the rotating shaft into an analog quantity.
According to another embodiment of the invention, the shaft vibration probe is arranged on the side of the rotating shaft of the flying spot device, and the detected vibration value of the rotating shaft is the distance between the shaft vibration probe and the rotating shaft of the flying spot device.
According to another embodiment of the invention, the shaft vibration probe is arranged in a bearing housing at the rotating shaft, the detected vibration value of the rotating shaft being the vibration value at the bearing housing.
According to another embodiment of the present invention, a control system includes:
the PLC processing module is connected to the shaft vibration transmission protection meter and used for receiving the analog quantity sent by the shaft vibration transmission protection meter;
and the PLCCPU is connected to the PLC processing module and used for calculating the analog quantity obtained by the PLC processing module as a shaft vibration value and controlling the driving device according to the calculated shaft vibration value.
According to another embodiment of the invention, the control system is adapted to control the drive means to decelerate or decelerate to a stop when the monitored shaft vibration is equal to or greater than a predetermined threshold value.
According to another embodiment of the present invention, the shaft vibration monitoring apparatus further comprises:
and the shaft vibration integrated module is connected to the shaft vibration transmission protection meter and used for monitoring the running state of the shaft vibration transmission protection meter and setting the zero point of the shaft vibration transmission protection meter.
According to another embodiment of the invention, the shaft vibration integration module may control one or more shaft vibration transmission protection meters.
In another aspect of the embodiments of the present invention, a shaft vibration monitoring method for a flying spot device is provided, which includes the following steps:
the shaft vibration monitoring device monitors shaft vibration of the flying spot device;
the control system controls the drive device according to the monitored shaft vibration;
the shaft vibration monitoring method uses any one of the shaft vibration monitoring systems for the flying spot device.
According to one embodiment of the present invention, a control drive device includes:
judging whether the value of the shaft vibration is equal to or greater than a preset threshold value, if so, sending a speed reduction command to the driving device, and if not, returning;
and judging whether the speed reduction command is successfully sent and whether the flying spot device is subjected to speed reduction, if so, finishing, and if not, sending the speed reduction command again.
The invention has the following beneficial technical effects: the shaft vibration monitoring system and method for the flying spot device provided by the embodiment of the invention comprise the following steps: the shaft vibration monitoring device is used for monitoring the shaft vibration of the flying spot device; and the control system is connected to the shaft vibration monitoring device and the driving device for driving the flying spot device to rotate and is used for controlling the driving device according to the monitored shaft vibration. The shaft vibration monitoring device monitors shaft vibration of the flying spot device; the control system controls the drive device based on the monitored shaft vibration. The shaft vibration value of the flying spot device can be monitored to monitor the stress and the running state of the flying spot device in real time, so that the mechanical damage which possibly occurs when the stress reaches the limit state in the high-speed rotating process of the flying spot device is avoided, the safety of equipment is ensured, and the early warning and protection effects are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a block diagram of a shaft vibration monitoring system for a flying spot device according to the present invention;
FIG. 2 is a block diagram of an embodiment of a shaft vibration monitoring system for a flying spot device provided in the present invention;
FIG. 3 is a schematic diagram of one embodiment of a shaft vibration probe of a shaft vibration monitoring system for a flying spot device provided by the present invention;
FIG. 4 is a schematic diagram of another embodiment of the present invention providing an arrangement of a shaft vibration probe for a shaft vibration monitoring system of a flying-spot device;
FIG. 5 is a flow chart of a shaft vibration monitoring method for a flying spot device provided by the present invention;
FIG. 6 is a flow chart of one embodiment of a shaft vibration monitoring method for a flying spot device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
In view of the above objects, a first aspect of an embodiment of the present invention provides a shaft vibration monitoring system for a flying spot device. Fig. 1 is a block diagram illustrating a shaft vibration monitoring system for a flying spot device according to the present invention. The system is particularly useful for a flying spot device of a backscatter inspection vehicle.
A shaft vibration monitoring system for a flying spot device comprising: a shaft vibration monitoring device 2 and a control system 3. The flying spot device 1 is a rotor, and can be a flywheel or a rotating drum. Different groove sections can be designed on the rotor so as to achieve the purpose of restraining an X-ray emission line to form a flying spot, and the groove sections on the rotor need to be designed after calculation. The flying spot device 1 further comprises a rotating shaft, a bearing seat, wherein the rotating shaft is rotatably supported by the bearing on the bearing seat, which is fixedly connected to the housing of the flying spot device 1. The shaft vibration monitoring device 2 is used for monitoring the shaft vibration of the flying spot device 1. In particular, the shaft vibration of the flying spot device 1 may be monitored by detecting the time-varying vibration amplitude at the shaft of the flying spot device 1 and/or the distance to the shaft vibration monitoring device 2, and may also be monitored by any means known in the art. The control system 3 is connected (e.g. by a signal cable, but also by other known wired or wireless means) to the shaft vibration monitoring device 2 and to the drive device 4 for driving the rotation of the flying spot device 1 and is adapted to control the drive device 4 in dependence of the monitored shaft vibration. In one example, the control system 3 processes values of shaft vibrations. In one example, the control system 3 is adapted to control the drive means 4 to decelerate or decelerate to a stop when the monitored shaft vibration is equal to or greater than a predetermined threshold value. The predetermined threshold value is stored in advance in a storage device in the control system 3. The signal cable described herein is used for signal transmission between devices or equipment.
Specifically, the shaft vibration monitoring device 2 monitors the shaft vibration value of the flying spot device 1 in real time as the flying spot device 1 rotates, and transmits a signal to the control system 3. The shaft vibration value is set as a dangerous value (a preset threshold value), and when the shaft vibration value reaches the dangerous value (the preset threshold value), the control system 3 controls the driving device 4 of the flying spot device 1 to reduce the speed, even the operation can be stopped, and the flying spot device 1 can be ensured not to be damaged.
In one example, the shaft vibration monitoring device 2 includes: the shaft vibration probe, the shaft vibration transmitting protection meter and the shaft vibration integration module. The shaft vibration probe is arranged close to the rotating shaft of the flying spot device 1 and used for detecting the vibration value of the rotating shaft. In one example, the shaft vibrating probe may be a distance sensor. In another example, a shaft vibration probe is provided at a side of the rotating shaft of the flying spot apparatus 1 for detecting a distance from the rotating shaft of the flying spot apparatus 1. In particular, the shaft vibration probe may be fixedly or detachably mounted on a bearing block at the rotating shaft of the flying spot apparatus 1 and/or on the housing of the flying spot apparatus 1 by means of a connection known in the art (e.g. a bracket). The shaft vibration transmission protection meter is connected (for example, via a signal cable, or via other known wired or wireless means) to the shaft vibration probe for changing the distance between the shaft vibration probe and the rotating shaft of the flying spot device 1 to an analog quantity. The shaft vibration integrated module is connected to the shaft vibration transmission protection meter (for example, through a signal cable, or through other known wired or wireless methods), and is used for monitoring the operation state of the shaft vibration transmission protection meter and setting a zero point of the shaft vibration transmission protection meter. And the shaft vibration integration module may control one or more shaft vibration transmission protection meters, for example, 8. Wherein, zero is: when the flying spot device is static, the shaft vibration value is adjusted to 0um through the shaft vibration integrated module, and the process is called as zero point adjustment.
Additionally or alternatively, a shaft vibration probe may also be provided in the bearing housing at the rotating shaft for detecting a vibration value at the bearing housing. Wherein, in case of additionally comprising a shaft vibration probe arranged in the bearing housing, the shaft vibration probe is connected to the shaft vibration transmission protection meter or an additional shaft vibration transmission protection meter. Wherein a further shaft vibration transmission protection meter is connected to the control system 3.
In one example, the control system 3 includes: a PLC (Programmable logic controller) processing module and a PLCCPU. Wherein, the CPU (central Processing unit) is a central Processing unit. The PLC processing module is connected (for example, via a signal cable, or via other known wired or wireless methods) to the shaft vibration transmission protection table, and is configured to receive the analog quantity sent from the shaft vibration transmission protection table. The plcpu is connected (e.g., via a signal cable, or by other known wired or wireless means) to the PLC processing module, and is configured to calculate an analog quantity obtained by the PLC processing module as a shaft vibration value, and to control the driving device 4 according to the calculated shaft vibration value.
Fig. 2 shows a block diagram of an embodiment of a shaft vibration monitoring system for a flying spot device provided by the present invention. Wherein, a shaft vibration monitoring system for flying spot device includes: the device comprises a shaft vibration probe 21, a shaft vibration transmission protection meter 22, a shaft vibration integration module 23, a PLC processing module 31 and a PLCCPU 32. Wherein, the flying spot device 1 is used for generating flying spots, and the rotating shaft thereof rotates along with the flying spot device 1. The shaft vibration probe 21 is used to detect the distance between it and the rotating shaft of the flying spot device 1. The shaft vibration transmission protection meter 22 is connected (for example, by a signal cable, or by other known wired or wireless means) to the shaft vibration probe 21, and is used for changing the distance between the shaft vibration probe 21 and the rotating shaft of the flying spot device 1 to 4-20mA analog quantity. The shaft vibration integration module 23 is connected to the shaft vibration transmission protection meter 22, and is configured to monitor an operation state of the shaft vibration transmission protection meter 22 and set a zero point of the shaft vibration transmission protection meter 22. And the shaft vibration integration module 23 can control up to 8 shaft vibration transmission protection tables 22. The PLC processing module 31 is connected to the shaft vibration transmission protection table 22, and is configured to receive and process the 4-20mA analog quantity transmitted by the shaft vibration transmission protection table 22. The PLCCPU32 is connected to the PLC processing module 31, and is configured to receive the 4-20mA analog quantity of the PLC processing module 31, calculate the 4-20mA analog quantity as a shaft vibration value, and control the driving device 4 according to the calculated shaft vibration value. The shaft vibration monitoring system mainly comprises a shaft vibration probe 21, a shaft vibration transmission protection meter 22, a shaft vibration integrated module 23 and a signal cable thereof.
Specifically, the shaft vibration probe 21 extends to the side of the rotating shaft of the flying spot device 1, when the flying spot device 1 rotates, the flying spot device 1 may shake, at this time, the distance between the rotating shaft of the flying spot device 1 and the shaft vibration probe 21 may change, the shaft vibration probe 21 may sense a distance value, the distance value may be transmitted to the shaft vibration transmission protection meter 22 via a signal cable, an analog quantity of 4 to 20mA may be output, received via the PLC processing module 31, and the value may be transmitted to the ccpplu 32 via the signal cable, and the ccpu32 may process the value of 4 to 20mA to obtain a shaft vibration value. The PLCCPU32 sets a certain shaft vibration value as a dangerous value (predetermined threshold), and when the shaft vibration value reaches the dangerous value (predetermined threshold), controls the driving device 4 of the flying spot device 1 to reduce the speed, even stops the operation, so that the flying spot device is ensured not to be damaged.
Wherein, after a large number of engineering tests, when the shaft vibration value is greater than or equal to Aum, the flying spot device is damaged mechanically with a high probability, and the dangerous value (predetermined threshold) of the shaft vibration value is Bum (B is less than or equal to a).
In some embodiments, when the shaft vibration value is greater than or equal to 140um, mechanical damage of the flying spot device occurs with high probability, and the dangerous value (predetermined threshold value) of the shaft vibration value is set to 120um, so that high-speed safe and reliable operation of the flying spot device can be ensured.
Fig. 3 shows an installation manner of the shaft vibration probe 21, the allowable installation clearance between the shaft vibration probe 21 and the rotating shaft of the flying spot device 1 is 0.25mm-2.25mm, and the optimal installation clearance is 1.25 mm. The material of the rotating shaft of the flying spot device 1 is ferrite, and the minimum diameter of the rotating shaft of the flying spot device 1 is 50.8 mm.
Optionally, as shown in fig. 4, the shaft vibration monitoring device 2 further comprises a shaft vibration probe 24, or instead of the shaft vibration probe 21, the shaft vibration probe 24 is provided in a bearing housing at the rotating shaft for detecting the vibration value at the bearing housing. Specifically, the top of the shaft vibration probe 24 is self-threaded, a threaded hole is formed in the surface of a bearing seat of the flying spot device 1, and the threaded part at the top of the shaft vibration probe 24 is screwed into the threaded hole, so that the shaft vibration value of the flying spot device 1 can be monitored. Wherein the shaft vibration transmission protection meter 22 is connected to the shaft vibration probe 24 and is used to change the vibration value at the bearing housing to an analog quantity.
The arrangement of the shaft vibration monitoring device (and the probe or detector therein) is not limited to the above combination, and devices or arrangements having the same similar functions may also be used to monitor the shaft vibration values.
As can be seen from the above embodiments, the shaft vibration monitoring system for a flying spot device provided by the embodiments of the present invention includes: the shaft vibration monitoring device is used for monitoring the shaft vibration of the flying spot device; the control system is connected to the shaft vibration monitoring device and the driving device for driving the flying spot device to rotate, is used for controlling the driving device according to the monitored shaft vibration, can monitor the shaft vibration value of the flying spot device so as to monitor the stress and the running state of the flying spot device in real time, avoids the mechanical damage possibly caused by the fact that the stress of the flying spot device reaches a limit state in the high-speed rotating process of the flying spot device, ensures the safety of equipment, and achieves the early warning and protection effects.
When the back scattering equipment runs, the flying spot device needs to keep rotating at a high speed at any time. The stress state of the flying spot device cannot be monitored in the traditional mode, in order to guarantee the safety of equipment, a shaft vibration probe is installed at a rotating shaft of the flying spot device and connected with a shaft vibration transmission protection table, an integration module and a PLC processing module, and a shaft vibration value of the flying spot device is obtained, so that the flying spot device is subjected to speed reduction control when being about to damage.
In view of the above, in another aspect of the embodiments of the present invention, a shaft vibration monitoring method for a flying spot device is provided. Fig. 5 shows a flow chart of a shaft vibration monitoring method for a flying spot device provided by the invention.
A shaft vibration monitoring method for a flying spot device, comprising the steps of:
s101: the shaft vibration monitoring device 2 monitors the shaft vibration of the flying spot device 1;
s103: the control system 3 controls the drive means 4 in dependence on the monitored shaft vibration;
the shaft vibration monitoring method uses the shaft vibration monitoring system for the flying spot device.
In one embodiment, as shown in fig. 6, the step of controlling the driving device 4 comprises:
judging whether the value of the shaft vibration is equal to or greater than a preset threshold value, if so, sending a speed reduction command to the driving device 4, and if not, returning;
and judging whether the speed reduction command is successfully sent and whether the flying spot device 1 is subjected to speed reduction, if so, finishing, and if not, sending the speed reduction command again.
Specifically, the shaft vibration monitoring device 2 and the PLC unit (including the PLC processing module 31 and the plcpu 32) jointly monitor the shaft vibration value of the flying spot device 1 in real time, and when the shaft vibration value of the flying spot device 1 is smaller than a dangerous value (a predetermined threshold), no measure is taken; when the vibration value of the flying spot device 1 is equal to or greater than the dangerous value (predetermined threshold value), the plcpu 32 transmits a deceleration command to the drive device 4 of the flying spot device 1, monitors whether the command is successfully transmitted and the flying spot device 1 starts decelerating, and if the command is unsuccessfully transmitted or the flying spot device 1 does not start decelerating, transmits the command again until the command is successfully transmitted and the flying spot device 1 starts decelerating.
Wherein when the shaft vibration value is Aum or more and mechanical damage of the flying spot device occurs with a high probability, the dangerous value (predetermined threshold) of the shaft vibration value is Bum (B is a or less). Specifically, when the shaft vibration value is greater than or equal to 140um, mechanical damage of the flying spot device occurs with high probability, and the dangerous value (predetermined threshold value) of the shaft vibration value is set to 120um, so that high-speed safe and reliable operation of the flying spot device can be ensured.
In this embodiment, after the shaft vibration value is obtained, the obtained shaft vibration value is compared with a risk value (a predetermined threshold value set in advance), and when the shaft vibration value is equal to or greater than the risk value, the flying spot device is controlled to decelerate. In another embodiment, the curve of the rotation speed, time and shaft vibration value can be obtained through processing, the curve is compared with a normal curve (set in advance), and when the two curves are different, the flying spot device is controlled to be in a safe operation rotation speed, or the operation is automatically stopped.
As can be seen from the foregoing embodiments, the shaft vibration monitoring method for a flying spot device according to an embodiment of the present invention includes: the shaft vibration monitoring device monitors shaft vibration of the flying spot device; the control system controls the driving device according to the monitored shaft vibration, can monitor the shaft vibration value of the flying spot device, monitors the stress and the running state of the flying spot device in real time, avoids mechanical damage which is possibly caused by the fact that the stress of the flying spot device reaches a limit state in the high-speed rotation process of the flying spot device, ensures the safety of equipment, and achieves the early warning and protection effects.
It should be noted that the above-mentioned embodiments may be intersected, replaced, added or deleted, and therefore, these reasonable permutations and combinations should also fall within the scope of the present invention, and should not limit the scope of the present invention to the described embodiments.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a," "an," "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A shaft vibration monitoring system for a flying spot device, comprising:
the shaft vibration monitoring device is used for monitoring shaft vibration of the flying spot device;
and the control system is connected to the shaft vibration monitoring device and a driving device for driving the flying spot device to rotate and is used for controlling the driving device according to the monitored shaft vibration.
2. The system of claim 1, wherein the shaft vibration monitoring device comprises:
the shaft vibration probe is arranged close to the rotating shaft of the flying spot device and is used for detecting the vibration value of the rotating shaft;
and the shaft vibration transmission protection meter is connected to the shaft vibration probe and is used for changing the vibration value of the rotating shaft into an analog quantity.
3. The system of claim 2, wherein the shaft vibration probe is disposed at a side of a rotating shaft of the flying spot apparatus, and the detected vibration value of the rotating shaft is a distance between the shaft vibration probe and the rotating shaft of the flying spot apparatus.
4. The system of claim 2, wherein the shaft vibration probe is disposed in a bearing housing at the rotating shaft, the detected vibration value of the rotating shaft being a vibration value at the bearing housing.
5. The system of claim 2, wherein the control system comprises:
the PLC processing module is connected to the shaft vibration transmission protection meter and used for receiving the analog quantity sent by the shaft vibration transmission protection meter;
and the PLCCPU is connected to the PLC processing module and used for calculating the analog quantity obtained by the PLC processing module as a shaft vibration value and controlling the driving device according to the calculated shaft vibration value.
6. The system of claim 1, wherein:
the control system is configured to control the drive means to slow down or stop when the monitored shaft vibration is equal to or greater than a predetermined threshold.
7. The system of claim 2, wherein the shaft vibration monitoring device further comprises:
and the shaft vibration integrated module is connected to the shaft vibration transmission protection meter and used for monitoring the running state of the shaft vibration transmission protection meter and setting the zero point of the shaft vibration transmission protection meter.
8. The system of claim 7, wherein:
the shaft vibration integration module may control one or more of the shaft vibration transmission protection meters.
9. A shaft vibration monitoring method for a flying spot apparatus, comprising the steps of:
a shaft vibration monitoring device monitors shaft vibration of the flying spot device;
a control system controls the drive arrangement in dependence on the monitored shaft vibration;
wherein the shaft vibration monitoring method uses the shaft vibration monitoring system for a flying spot apparatus according to any one of claims 1 to 8.
10. The method of claim 9, wherein controlling the drive device comprises:
judging whether the value of the shaft vibration is equal to or greater than a preset threshold value, if so, sending a speed reduction command to the driving device, and if not, returning;
and judging whether the speed reduction command is successfully sent and whether the flying spot device is subjected to speed reduction, if so, finishing, and if not, sending the speed reduction command again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753672.8A CN110702214A (en) | 2018-07-10 | 2018-07-10 | Shaft vibration monitoring system and method for flying spot device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753672.8A CN110702214A (en) | 2018-07-10 | 2018-07-10 | Shaft vibration monitoring system and method for flying spot device |
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| CN201810753672.8A Pending CN110702214A (en) | 2018-07-10 | 2018-07-10 | Shaft vibration monitoring system and method for flying spot device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835129A (en) * | 2020-06-23 | 2021-12-24 | 同方威视技术股份有限公司 | Flying spot scanning device and back scattering safety detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1039277A1 (en) * | 1999-03-22 | 2000-09-27 | Meritor Heavy Vehicle Systems, LLC | Torsional vibration monitoring system |
| CN103712680A (en) * | 2014-01-02 | 2014-04-09 | 上海理工大学 | Early waning method for rolling bearing of rotating machine |
| CN208366462U (en) * | 2018-07-10 | 2019-01-11 | 北京君和信达科技有限公司 | A kind of shaft vibration monitoring system for flying spot device |
-
2018
- 2018-07-10 CN CN201810753672.8A patent/CN110702214A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039277A1 (en) * | 1999-03-22 | 2000-09-27 | Meritor Heavy Vehicle Systems, LLC | Torsional vibration monitoring system |
| CN103712680A (en) * | 2014-01-02 | 2014-04-09 | 上海理工大学 | Early waning method for rolling bearing of rotating machine |
| CN208366462U (en) * | 2018-07-10 | 2019-01-11 | 北京君和信达科技有限公司 | A kind of shaft vibration monitoring system for flying spot device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835129A (en) * | 2020-06-23 | 2021-12-24 | 同方威视技术股份有限公司 | Flying spot scanning device and back scattering safety detection system |
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