CN208366462U - A kind of shaft vibration monitoring system for flying spot device - Google Patents
A kind of shaft vibration monitoring system for flying spot device Download PDFInfo
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- CN208366462U CN208366462U CN201821089231.4U CN201821089231U CN208366462U CN 208366462 U CN208366462 U CN 208366462U CN 201821089231 U CN201821089231 U CN 201821089231U CN 208366462 U CN208366462 U CN 208366462U
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- shaft vibration
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- vibration
- spot device
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Abstract
The utility model discloses a kind of shaft vibrations for flying spot device to monitor system, including shaft vibration monitoring device, for monitoring the shaft vibration of flying spot device；Control system is connected to shaft vibration monitoring device and drives the driving device of flying spot device rotation, for controlling driving device according to the shaft vibration monitored.The shaft vibration value of flying spot device can be monitored; to monitor the stress and operating status of flying spot device in real time; the mechanical failure for avoiding flying spot device from being likely to occur during its high speed rotation because stress reaches capacity state, guarantees the safety of equipment, to reach early warning and protective effect.
Description
Technical field
The utility model relates to radiographic imaging arts, and more particularly, to a kind of shaft vibration for flying spot device
Monitoring system.
Background technique
Back scattering check device, especially back scattering check vehicle, according to the image-forming principle of back scattering, need to have flying spot device
Flying spot is generated, to guarantee that it generates a series of flying spots at lengthwise position to be classified as unit, system acquires each scanning element again
Lateral, longitudinal location information, as soon as can just access the complete scan image of width, this needs flying spot device again and again
Rotation.Back scattering checks that the flying spot device of vehicle is successively to be completed a column by column scan by spot scan in lengthwise position and swept again
Retouch next column.When its work, flying spot device high speed rotation, which is possible to will lead to its stress, to be reached the limit values and generates mechanical failure,
Flying spot device stress in rotary course can change, and correspondingly, shaft vibration value can change at certain trend.Although
Some radiation scanning devices can execute safety check task, but due to not considering the stress of flying spot device, thus easily make
At the mechanical failure of flying spot device, safety is poor.
For the problems of the prior art, a kind of monitoring system is needed, the shaft vibration value of flying spot device is monitored, to supervise in real time
The operating status of flying spot device is controlled, to reach early warning and protective effect.
Utility model content
In view of this, the purpose of the utility model embodiment is to propose a kind of shaft vibration monitoring system for flying spot device
System, to monitor the shaft vibration value of flying spot device, to monitor the stress and operating status of flying spot device in real time, avoids flying spot device from existing
The mechanical failure being likely to occur during its high speed rotation because stress reaches capacity state, guarantees the safety of equipment, comes
Reach early warning and protective effect.
Based on above-mentioned purpose, the one side of the utility model embodiment provides a kind of shaft vibration prison for flying spot device
Examining system, comprising:
Shaft vibration monitoring device, for monitoring the shaft vibration of flying spot device；
Control system is connected to shaft vibration monitoring device and drives the driving device of flying spot device rotation, for according to prison
The shaft vibration that measures controls driving device.
Another embodiment according to the present utility model, shaft vibration monitoring device include:
The shaft vibration probe being arranged close to the shaft of flying spot device, for detecting the vibration values of shaft；
Shaft vibration pick-up protects table, shaft vibration probe is connected to, for the vibration values of shaft to be changed into analog quantity.
The side of the shaft of flying spot device, institute is arranged in another embodiment according to the present utility model, shaft vibration probe
The vibration values of the shaft of detection are the distance between the shaft of shaft vibration probe and flying spot device.
Another embodiment according to the present utility model, shaft vibration probe are arranged in the bearing block at shaft, are detected
Shaft vibration values be bearing block at vibration values.
Another embodiment according to the present utility model, control system include:
PLC processing module is connected to shaft vibration pick-up protection table, the mould sent for receiving axis vibration transmission protection meter
Analog quantity；
PLCCPU is connected to PLC processing module, and the analog quantity for obtaining PLC processing module is calculated as shaft vibration value,
And driving device is controlled according to the shaft vibration value of calculating.
Another embodiment according to the present utility model, control system are used to be equal to or more than in the shaft vibration monitored pre-
Control driving device reduction of speed or reduction of speed extremely stop when determining threshold value.
Another embodiment according to the present utility model, shaft vibration monitoring device further include:
Shaft vibration integration module is connected to shaft vibration pick-up protection table, for monitoring the operation of shaft vibration pick-up protection table
State and the zero point that shaft vibration pick-up protection table is set.
Another embodiment according to the present utility model, the controllable one or more shaft vibration pick-ups of shaft vibration integration module
Protect table.
The shaft vibration for flying spot device of the offer of the utility model embodiment monitors system, by being stored in memory
In instruction, execute following steps:
The shaft vibration of shaft vibration monitoring device monitoring flying spot device；
Control system controls driving device according to the shaft vibration monitored；
Wherein, executing the step has used the shaft vibration for flying spot device of any of the above-described to monitor system.
One embodiment according to the present utility model, control driving device the step of include:
Judge whether the value of shaft vibration is equal to or more than predetermined threshold, if then sending reduction of speed order to driving device, if
It is no, then it returns；
Judge reduction of speed order whether send successfully and flying spot device whether reduction of speed, if then terminating, if it is not, then sending out again
Send reduction of speed order.
The utility model has following advantageous effects: the axis provided by the embodiment of the utility model for flying spot device
Vibration monitor system, by including: shaft vibration monitoring device, for monitoring the shaft vibration of flying spot device；Control system is connected to
The driving device of shaft vibration monitoring device and driving flying spot device rotation, for controlling driving dress according to the shaft vibration monitored
It sets.The shaft vibration value of flying spot device can be monitored, to monitor the stress and operating status of flying spot device in real time, avoids flying spot device
The mechanical failure being likely to occur during its high speed rotation because stress reaches capacity state, guarantees the safety of equipment,
To reach early warning and protective effect.
Detailed description of the invention
It, below will be required to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural block diagram that the shaft vibration provided by the utility model for flying spot device monitors system；
Fig. 2 is the structural frames of one embodiment that the shaft vibration provided by the utility model for flying spot device monitors system
Figure；
Fig. 3 is the setting side for the shaft vibration probe that the shaft vibration provided by the utility model for flying spot device monitors system
The schematic diagram of one embodiment of formula；
Fig. 4 is the setting side for the shaft vibration probe that the shaft vibration provided by the utility model for flying spot device monitors system
The schematic diagram of another embodiment of formula；
Fig. 5 is the flow chart that the shaft vibration provided by the utility model for flying spot device monitors the step of system executes；
Fig. 6 is the implementation that the shaft vibration provided by the utility model for flying spot device monitors the step of system executes
The flow chart of example.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to attached drawing, the utility model embodiment is further described.
Based on above-mentioned purpose, the first aspect of the utility model embodiment proposes a kind of axis for flying spot device
Vibration monitor system.Shown in fig. 1 is the structural frames of the shaft vibration monitoring system provided by the utility model for flying spot device
Figure.The system, which is especially, is used for the flying spot device that back scattering checks vehicle.
A kind of shaft vibration monitoring system for flying spot device includes: shaft vibration monitoring device 2 and control system 3.Wherein,
Flying spot device 1 is a rotor, can be flywheel, is also possible to rotating cylinder.Different slot sections can be designed, on rotor to reach about
Beam X-ray projects route to form the purpose of flying spot, and the slot section on rotor need to be designed after calculating.Flying spot device 1
It further include shaft, bearing, bearing block, wherein shaft is pivotally supported on bearing block by bearing, which fixes
Ground is connected to the shell of flying spot device 1.Shaft vibration monitoring device 2 is used to monitor the shaft vibration of flying spot device 1.It specifically, can be with
By the Oscillation Amplitude changed over time at the axis of detection flying spot device 1 and/or relative to the distance of shaft vibration monitoring device 2
The shaft vibration of flying spot device 1 is monitored, can also be monitored by any manner known in the art.Control system 3 connects (example
Such as by signal cable, other known wired or wireless mode can also be passed through) fly to shaft vibration monitoring device 2 and driving
The driving device 4 that point device 1 rotates, and for controlling driving device 4 according to the shaft vibration monitored.In an example
In, control system 3 handles the value of shaft vibration.In one example, control system 3 is used in the shaft vibration etc. monitored
Control 4 reduction of speed of driving device or reduction of speed extremely stop when predetermined threshold.The predetermined threshold is to be stored in advance in control system
In storage device in system 3.Signal cable as described herein is for the signal transmission between device or equipment.
Specifically, when flying spot device 1 rotates, the shaft vibration value of 2 real-time monitoring flying spot device 1 of shaft vibration monitoring device,
And transmit a signal to control system 3.A certain shaft vibration value is set as dangerous values (predetermined threshold), reaches this danger in shaft vibration value
Control system 3 controls 4 reduction of speed of driving device of flying spot device 1 when danger value (predetermined threshold), very can guarantee to operation is terminated
Flying spot device 1 does not destroy.
In one example, shaft vibration monitoring device 2 includes: shaft vibration probe, shaft vibration pick-up protection table and shaft vibration
Integration module.Shaft vibration is popped one's head in close to the shaft setting of flying spot device 1, for detecting the vibration values of shaft.In one example,
Shaft vibration probe can be range sensor.In another example, the shaft of flying spot device 1 is arranged in shaft vibration probe
Side, for detecting the distance between itself and the shaft of flying spot device 1.Specifically, shaft vibration probe can pass through this field
Known connector (such as bracket) is fixedly or detachably mounted on the bearing block at the shaft of flying spot device 1 and/or flies
On the shell of point device 1.The connection of shaft vibration pick-up protection table (such as by signal cable, can also have by other known
Line or wirelessly) it pops one's head in shaft vibration, for the distance between shaft of shaft vibration probe and flying spot device 1 amount to be changed
For analog quantity.The connection of shaft vibration integration module (such as by signal cable, it can also be by other known wired or wireless
Mode) to shaft vibration pick-up protection table, it is protected for monitoring the operating status of shaft vibration pick-up protection table and shaft vibration pick-up being arranged
Protect the zero point of table.And the controllable one or more shaft vibration pick-ups of shaft vibration integration module protect table, such as 8.Wherein, zero
Point are as follows: when flying spot device is static, by shaft vibration integration module, shaft vibration value is adjusted to 0um, this process is referred to as zero point
It adjusts.
Additionally or alternatively, shaft vibration probe can also be arranged in the bearing block at shaft, for detecting bearing block
The vibration values at place.Wherein, in the case where also comprising the shaft vibration being arranged in bearing block probe, shaft vibration probe connection
Table or other shaft vibration pick-up is protected to protect table to shaft vibration pick-up.Wherein other shaft vibration pick-up protection table is connected to control
System 3 processed.
In one example, control system 3 includes: PLC (programmable controller, ProgrammableLogic
Controller) processing module and PLCCPU.Wherein CPU (Central Processing Unit) is central processing unit.PLC
Processing module connects (such as by signal cable, can also pass through other known wired or wireless mode) and becomes to shaft vibration
Protection table is sent, the analog quantity sent for receiving axis vibration transmission protection meter.PLCCPU connection (such as by signal cable,
Other known wired or wireless mode can also be passed through) to PLC processing module, the mould for obtaining PLC processing module
Analog quantity is calculated as shaft vibration value, and driving device 4 is controlled according to the shaft vibration value of calculating.
Fig. 2 shows the knots of one embodiment of the shaft vibration monitoring system provided by the utility model for flying spot device
Structure block diagram.Wherein, a kind of shaft vibration monitoring system for flying spot device includes: shaft vibration probe 21, the protection of shaft vibration pick-up
Table 22, shaft vibration integration module 23, PLC processing module 31 and PLCCPU 32.Wherein, flying spot device 1 is used to generate flying spot,
Shaft is rotated together with flying spot device 1.Shaft vibration probe 21 is for detecting the distance between itself and the shaft of flying spot device 1.Axis
Vibration transmission protection meter 22 connects (such as by signal cable, can also pass through other known wired or wireless mode) and arrives
Shaft vibration probe 21, for the distance between shaft vibration probe 21 and the shaft of flying spot device 1 amount to be changed into 4-20mA simulation
Amount.Shaft vibration integration module 23 is connected to shaft vibration pick-up protection table 22, for monitoring the operation of shaft vibration pick-up protection table 22
State and the zero point that shaft vibration pick-up protection table 22 is set.And shaft vibration integration module 23 can at most control 8 shaft vibrations and become
Send protection table 22.PLC processing module 31 is connected to shaft vibration pick-up protection table 22, for receiving and processing the protection of shaft vibration pick-up
The 4-20mA analog quantity that table 22 is sent.PLCCPU 32 is connected to PLC processing module 31, for receiving PLC processing module 31
4-20mA analog quantity is calculated as shaft vibration value by 4-20mA analog quantity, and driving dress is controlled according to the shaft vibration value of calculating
Set 4.Shaft vibration monitor system mainly by shaft vibration probe 21, shaft vibration pick-up protection table 22 and shaft vibration integration module 23 and its
Signal cable composition.
Specifically, shaft vibration probe 21 reaches the side of the shaft of flying spot device 1, when flying spot device 1 rotates, flying spot dress
Setting 1 will appear jitter phenomenon, and the distance between the shaft of flying spot device 1 and shaft vibration probe 21 can change at this time, axis vibration
Dynamic probe 21 can sense distance value, which is transmitted to shaft vibration pick-up protection table 22 via signal cable, export 4-
The analog quantity of 20mA is received via PLC processing module 31, sends its value to PLCCPU32 by signal cable,
PLCCPU 32 is handled 4-20mA value to obtain shaft vibration value.A certain shaft vibration value is set as dangerous values (predetermined threshold),
PLCCPU 32 controls 4 reduction of speed of driving device of flying spot device 1 when shaft vibration value reaches this dangerous values (predetermined threshold), or even eventually
It only runs, that is, can guarantee that flying spot device does not destroy.
Wherein, it is obtained by a large amount of engineering tests, when shaft vibration value is more than or equal to Aum, flying spot device is in very maximum probability
On mechanical failure can occur, then the dangerous values (predetermined threshold) that shaft vibration value is arranged are Bum (B be less than or equal to A).
In certain embodiments, when shaft vibration value is more than or equal to 140um, machine can occur in very maximum probability for flying spot device
Tool damage, then the dangerous values (predetermined threshold) that shaft vibration value is arranged are 120um, it is ensured that flying spot device high-speed secure is reliable
Operation.
Fig. 3 is a kind of mounting means of shaft vibration probe 21, permitting between shaft vibration probe 21 and the shaft of flying spot device 1
Perhaps installation gap is 0.25mm-2.25mm, and best gap of installing is 1.25mm.The material of the shaft of flying spot device 1 is ferrite,
The minimum diameter of the shaft of flying spot device 1 is 50.8mm.
Optionally, as shown in figure 4, shaft vibration monitoring device 2 further includes shaft vibration probe 24, or substitution shaft vibration probe
21, shaft vibration probe 24 is arranged in the bearing block at shaft, for detecting the vibration values at bearing block.Specifically, shaft vibration
Threaded hole is opened in the bearing seating face of flying spot device 1 from threaded in 24 top of probe, by the threaded portion at 24 top of shaft vibration probe
Divide and be screwed into this threaded hole, the shaft vibration value of flying spot device 1 can be monitored.Wherein, shaft vibration pick-up protection table 22 is connected to axis vibration
Dynamic probe 24, and for the vibration values at bearing block to be changed into analog quantity.
The setting of shaft vibration monitoring device (and probe therein or detector) is not limited to said combination, there is same type
The monitoring of shaft vibration value can also be realized like the device of function or setting.
From above-described embodiment as can be seen that the shaft vibration provided by the embodiment of the utility model for flying spot device monitors system
System, by including: shaft vibration monitoring device, for monitoring the shaft vibration of flying spot device；Control system is connected to shaft vibration monitoring
The driving device of device and driving flying spot device rotation, for controlling driving device, Neng Goujian according to the shaft vibration monitored
The shaft vibration value for surveying flying spot device avoids flying spot device in its high speed to monitor the stress and operating status of flying spot device in real time
The mechanical failure being likely to occur during rotation because stress reaches capacity state, guarantees the safety of equipment, pre- to reach
Alert and protective effect.
Back, which is casually arranged with, keeps high speed rotation at runtime, flying spot device takes at quarter.Flying spot dress is unable to monitor under traditional approach
The stress set, in order to guarantee the safety of equipment, using the installation axle vibration probe at flying spot device shaft, and connecting shaft
Vibration transmission protection meter and integration module and PLC processing module obtain the shaft vibration value of flying spot device, thus in flying spot device
Reduction of speed control is carried out to it when will destroy.
Fig. 5 shows the process for the step of shaft vibration monitoring system provided by the utility model for flying spot device executes
Figure, comprising the following steps:
S101: the shaft vibration of the monitoring flying spot device 1 of shaft vibration monitoring device 2；
S103: control system 3 controls driving device 4 according to the shaft vibration monitored；
In one embodiment, as shown in fig. 6, the step of controlling driving device 4 includes:
Judge whether the value of shaft vibration is equal to or more than predetermined threshold, if then sending reduction of speed order to driving device 4, if
It is no, then it returns；
Judge reduction of speed order whether send successfully and flying spot device 1 whether reduction of speed, if then terminating, if it is not, then again
Send reduction of speed order.
Specifically, shaft vibration monitoring device 2 and PLC unit (including PLC processing module 31 and PLCCPU 32) joint are real-time
The shaft vibration value for monitoring flying spot device 1 is not taken and is appointed when the shaft vibration value of flying spot device 1 is less than dangerous values (predetermined threshold)
What measure；When the vibration values of flying spot device 1 are more than or equal to dangerous values (predetermined threshold), drive of the PLCCPU 32 to flying spot device 1
Dynamic device 4 sends reduction of speed order, monitors whether the order sends successfully and whether flying spot device 1 starts reduction of speed, if order is sent
Unsuccessful or flying spot device 1 does not start reduction of speed, then sends order again until order is sent successfully and flying spot device 1 starts to drop
Speed.
Wherein, when shaft vibration value is more than or equal to Aum, mechanical failure can occur in very maximum probability for flying spot device, then sets
The dangerous values (predetermined threshold) for setting shaft vibration value are Bum (B is less than or equal to A).Specifically, when shaft vibration value is more than or equal to 140um
When, mechanical failure can occur in very maximum probability for flying spot device, then the dangerous values (predetermined threshold) that shaft vibration value is arranged are
120um, it is ensured that flying spot device high-speed secure is reliably run.
The present embodiment is after obtaining shaft vibration value, with obtained shaft vibration value and dangerous values (the predetermined threshold being previously set
Value) it is compared, when shaft vibration value is equal to or more than this value, control flying spot device reduction of speed.In another embodiment, may be used
The curve that revolving speed, time and shaft vibration value are obtained by handling is compared with this curve and normalized curve (being previously set),
When the two is different, control flying spot device is to being safely operated revolving speed, or automatic terminates operation.
It is important to note that all parts in above-mentioned each embodiment can intersect, replace, increasing,
It deletes, therefore, these reasonable permutation and combination transformation should also be as belonging to the protection scope of the utility model, and should not be by this reality
It is confined on the embodiment with novel protection scope.
It is exemplary embodiment disclosed by the utility model above, it should be noted that being limited without departing substantially from claim
The utility model embodiment scope of disclosure under the premise of, may be many modifications and modify.In addition, although this is practical new
Element disclosed in type embodiment can be described or be required in the form of individual, but be unless explicitly limited odd number, it is understood that be
It is multiple.
It should be understood that it is used in the present context, unless the context clearly supports exceptions, singular " one
It is a " (" a ", " an ", " the ") be intended to also include plural form.It is to be further understood that "and/or" used herein is
Refer to any and all possible combinations including one or more than one project listed in association.
It is for illustration only that above-mentioned the utility model embodiment discloses embodiment sequence number, does not represent the advantages or disadvantages of the embodiments.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the utility model embodiment scope of disclosure (including claim) is limited to these examples；In the utility model reality
Under the thinking for applying example, it can also be combined between the technical characteristic in above embodiments or different embodiments, and exist such as
Many other variations of the different aspect of the upper described the utility model embodiment, for simplicity, they are not mentioned in details
For.Therefore, all within the spirit and principle of the utility model embodiment, any omission for being made, equivalent replacement, changes modification
Into etc., it should be included within the protection scope of the utility model embodiment.
Claims (8)
1. a kind of shaft vibration for flying spot device monitors system characterized by comprising
Shaft vibration monitoring device, for monitoring the shaft vibration of the flying spot device；
Control system is connected to the shaft vibration monitoring device and drives the driving device of the flying spot device rotation, is used for root
The driving device is controlled according to the shaft vibration monitored.
2. system according to claim 1, which is characterized in that the shaft vibration monitoring device includes:
The shaft vibration probe being arranged close to the shaft of the flying spot device, for detecting the vibration values of the shaft；
Shaft vibration pick-up protects table, the shaft vibration probe is connected to, for the vibration values of the shaft to be changed into analog quantity.
3. system according to claim 2, which is characterized in that turning for the flying spot device is arranged in the shaft vibration probe
The side of axis, the vibration values of the shaft detected are the distance between the shaft of shaft vibration probe and the flying spot device.
4. system according to claim 2, which is characterized in that the bearing at the shaft is arranged in the shaft vibration probe
In seat, the vibration values of the shaft detected are the vibration values at the bearing block.
5. system according to claim 2, which is characterized in that the control system includes:
PLC processing module is connected to the shaft vibration pick-up protection table, sends for receiving the shaft vibration pick-up protection table
The analog quantity；
PLCCPU is connected to the PLC processing module, and the analog quantity for obtaining the PLC processing module is calculated as
Shaft vibration value, and the driving device is controlled according to the shaft vibration value of calculating.
6. system according to claim 1, it is characterised in that:
The control system is used to control the driving device when the shaft vibration monitored is equal to or more than predetermined threshold
Reduction of speed or reduction of speed extremely stop.
7. system according to claim 2, which is characterized in that the shaft vibration monitoring device further include:
Shaft vibration integration module is connected to the shaft vibration pick-up protection table, for monitoring the shaft vibration pick-up protection table
Operating status and the zero point that the shaft vibration pick-up protection table is set.
8. system according to claim 7, it is characterised in that:
The controllable one or more shaft vibration pick-ups of the shaft vibration integration module protect table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089231.4U CN208366462U (en) | 2018-07-10 | 2018-07-10 | A kind of shaft vibration monitoring system for flying spot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089231.4U CN208366462U (en) | 2018-07-10 | 2018-07-10 | A kind of shaft vibration monitoring system for flying spot device |
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| CN208366462U true CN208366462U (en) | 2019-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702214A (en) * | 2018-07-10 | 2020-01-17 | 北京君和信达科技有限公司 | Shaft vibration monitoring system and method for flying spot device |
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2018
- 2018-07-10 CN CN201821089231.4U patent/CN208366462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702214A (en) * | 2018-07-10 | 2020-01-17 | 北京君和信达科技有限公司 | Shaft vibration monitoring system and method for flying spot device |
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Effective date of registration: 20220120 Address after: 030100 3005a, East Building, Guanlan international building, Jinyi street, Huangzhai Town, Yangqu County, Taiyuan City, Shanxi Province Patentee after: Zhongtai Yuanke Co.,Ltd. Address before: 100088 No.103, building 12, No.8, xinjiekouwai street, Xicheng District, Beijing Patentee before: POWERSCAN Co.,Ltd. |