CN202350907U - Monitor for shaft vibration - Google Patents
Monitor for shaft vibration Download PDFInfo
- Publication number
- CN202350907U CN202350907U CN2011204082642U CN201120408264U CN202350907U CN 202350907 U CN202350907 U CN 202350907U CN 2011204082642 U CN2011204082642 U CN 2011204082642U CN 201120408264 U CN201120408264 U CN 201120408264U CN 202350907 U CN202350907 U CN 202350907U
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- display
- shaft vibration
- monitor
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Abstract
The utility model discloses a monitor for shaft vibration, comprising a signal detection unit, a display unit, an output unit and an alarm unit which are connected with a signal processing unit. The monitor for shaft vibration disclosed by the utility model can directly measure the vibration condition of a rotary shaft, and realize the purpose of monitoring shaft vibration in real time by using an eddy current sensor of the signal detection unit, and adequately applying the strong computing and processing capacities of a single chip of the signal processing unit.
Description
Technical field
The utility model belongs to the technology of instrument and meter field, relates to a kind of monitor, particularly relates to a kind of rotary mechanical shaft vibration monitor.
Background technology
Rotating machinery often produces vibration at work; Vibration can make efficient reduce, and load increases, and makes some parts wears; Tired and shorten the life-span; And vibration also can worsen people's work situation (like noise etc.), and violent vibration will directly influence the operate as normal of rotating machinery, will jeopardize personal safety and cause device damage when serious; So must monitor and protect to the vibration of rotating machinery; Yet existing metering system can not well directly react the situation of shaft vibration.
The utility model content
The purpose of the utility model is to overcome the defective that exists in the prior art, and a kind of shaft vibration monitor that can directly measure turning axle vibration situation is provided.
For achieving the above object, the technical scheme of the utility model provides a kind of shaft vibration monitor, comprising:
Detecting signal unit comprises being arranged near the sensor of tested vibrating mass, is used to gather vibration signal, and converts vibration signal to corresponding electric signal, then said electric signal is sent to signal processing unit;
Signal processing unit; Comprise the filtering circuit, amplifying circuit, detecting circuit, analog to digital converter and the single-chip microcomputer that are connected in turn on the circuit board; Be used to receive the electric signal that detecting signal unit sends; And electric signal handled, through output port result is sent to display unit, output unit and/or alarm unit then;
Display unit comprises display, is used to show detected vibration signal;
Output unit is exported the electric signal of receiving signal processing unit through interface connector;
Alarm unit comprises warning indicator and relay, and vibration reaches alarm setting value, and the electric signal of signal processing unit is sent to the warning indicator and the relay of alarm unit simultaneously through photoisolator.
Steadily export for the signal that guarantees alarm unit, also be included between signal processing unit and the alarm unit and be provided with chronotron; Said chronotron is the scalable chronotron.
For the ease of measuring a plurality of vibrating mass of a plurality of vibrating devices or same device, said sensor has one at least, and preferred sensor can be used current vortex sensor.
In order to practice thrift cost, said display can be selected the charactron display for use.
In order to guarantee the normal operation of monitor, said monitor also comprises power module, is used to each unit power supply.
Be destroyed for fear of interference or monitor; Said monitor also comprises housing; Said signal processing unit, display unit, output unit, one-level alarm unit and secondary alarm unit are located in the housing, on the panel of housing, are provided with the interface that connects detecting signal unit, are provided with the window of display and button is set.
The advantage and the beneficial effect of the utility model are: the utility model can directly be measured turning axle vibration situation; Owing between signal processing unit and alarm unit, be provided with chronotron, can guarantee that the signal of alarm unit is steadily exported; Because display is selected the charactron display for use, can practice thrift cost.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model;
Fig. 2 is the structure rating synoptic diagram of the utility model;
Fig. 3 is the shell mechanism synoptic diagram of the utility model.
Wherein, 1, display; 2, button is set; 3, warning indicator; 4, circuit board; 5, power module; 6, relay; 7, single-chip microcomputer.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Shown in Fig. 1 to 3, the technical scheme of the utility model provides a kind of shaft vibration monitor, comprising:
Detecting signal unit comprises being arranged near the sensor of tested vibrating mass, is used to gather vibration signal, and converts vibration signal to corresponding electric signal, then said electric signal is sent to signal processing unit;
Signal processing unit; Comprise the filtering circuit, amplifying circuit, detecting circuit, analog to digital converter and the single-chip microcomputer 7 that are connected in turn on the circuit board 4; Be used to receive the electric signal that detecting signal unit sends; And electric signal handled, through output port result is sent to display unit, output unit and/or alarm unit then;
Display unit comprises display 1, is used to show detected vibration signal;
Output unit is exported the electric signal of receiving signal processing unit through interface connector;
Alarm unit comprises warning indicator 3 and relay 6, and vibration reaches alarm setting value, and the electric signal of signal processing unit is sent to the warning indicator and the relay 6 of alarm unit simultaneously through photoisolator.
On the basis of embodiment 1, steadily export for the signal that guarantees alarm unit, also be included between signal processing unit and the alarm unit and be provided with chronotron.
On the basis of embodiment 2, said chronotron is the scalable chronotron.
On the basis of embodiment 1, for the ease of measuring a plurality of vibrating mass of a plurality of vibrating devices or same device, said sensor has one at least.
Embodiment 5
On the basis of embodiment 4, said sensor can be used current vortex sensor.
On the basis of embodiment 1, in order to practice thrift cost, said display 1 is selected the charactron display for use.
On the basis of embodiment 1, in order to guarantee the normal operation of monitor, said monitor also comprises power module 5, is used to each unit power supply.
Embodiment 8
On the basis of embodiment 1; Be destroyed for fear of interference or monitor; Said monitor also comprises housing; Said signal processing unit, display unit, output unit and alarm unit are located in the housing, on the panel of housing, are provided with the interface that connects detecting signal unit, are provided with the window of display 1 and button 2 is set.
When marked change has taken place vibration values, need adopt remedial measures, machine can continue operation; Should be provided with one-level and report to the police this moment, when vibration values continues to increase, continues operation like machine and possibly cause damage; Should take urgent measure and reduce vibration or shutdown, should be provided with secondary and report to the police this moment.Alarming value should can be set arbitrarily in measurement range.When vibration parameters surpassed alarm setting value, the pilot lamp of device should send alerting signal, and relay 6 begins action simultaneously.In addition, also has the output of RS485 digital signal.Rotating machinery among this embodiment is installed simple with the vibration protection device, linear error is ± 1%, and resolution is 1 μ m, and frequency range is 5-300Hz, and measurement range is 0-500 μ m, and alarm range is the 0-100% full scale.
Be illustrated in figure 1 as rotating machinery among the utility model embodiment with the schematic block circuit diagram of vibration protection device.Adopt the 220V ac power supply, signals collecting is accomplished by current vortex sensor, offers single-chip microcomputer 7 through filtering, detection, A/D after handling, and accomplishes the function that shows and report to the police by single-chip microcomputer 7 again.Also has 4-20mA, outputs such as RS485 in addition.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (8)
1. a shaft vibration monitor is characterized in that, comprising:
Detecting signal unit comprises being arranged near the sensor of tested vibrating mass, is used to gather vibration signal, and converts vibration signal to corresponding electric signal, then said electric signal is sent to signal processing unit;
Signal processing unit; Comprise the filtering circuit, amplifying circuit, detecting circuit, analog to digital converter and the single-chip microcomputer that are connected in turn on the circuit board; Be used to receive the electric signal that detecting signal unit sends; And electric signal handled, through output port result is sent to display unit, output unit and/or alarm unit then;
Display unit comprises display, is used to show detected vibration signal;
Output unit is exported the electric signal of receiving signal processing unit through interface connector;
Alarm unit comprises warning indicator and relay, and vibration reaches alarm setting value, and the electric signal of signal processing unit is sent to the warning indicator and the relay of alarm unit simultaneously through photoisolator.
2. shaft vibration monitor as claimed in claim 1 is characterized in that: between signal processing unit and alarm unit, be provided with chronotron.
3. shaft vibration monitor as claimed in claim 2 is characterized in that: said chronotron is the scalable chronotron.
4. shaft vibration monitor as claimed in claim 3 is characterized in that: said sensor has one at least.
5. shaft vibration monitor as claimed in claim 4 is characterized in that: said sensor is a current vortex sensor.
6. shaft vibration monitor as claimed in claim 5 is characterized in that: said display is the charactron display.
7. shaft vibration monitor as claimed in claim 6 is characterized in that: also comprise power module, be used to each unit power supply.
8. like each described shaft vibration monitor of claim 1 to 7; It is characterized in that: also comprise housing; Said signal processing unit, display unit, output unit and alarm unit are located in the housing, on the panel of housing, are provided with the interface, the interface that is provided with output unit that connect detecting signal unit, are provided with the window of display and button is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204082642U CN202350907U (en) | 2011-10-21 | 2011-10-21 | Monitor for shaft vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204082642U CN202350907U (en) | 2011-10-21 | 2011-10-21 | Monitor for shaft vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350907U true CN202350907U (en) | 2012-07-25 |
Family
ID=46539904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204082642U Expired - Fee Related CN202350907U (en) | 2011-10-21 | 2011-10-21 | Monitor for shaft vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403232A (en) * | 2015-11-30 | 2016-03-16 | 国家电网公司 | Novel eddy-current sensor combination unit |
-
2011
- 2011-10-21 CN CN2011204082642U patent/CN202350907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403232A (en) * | 2015-11-30 | 2016-03-16 | 国家电网公司 | Novel eddy-current sensor combination unit |
| CN105403232B (en) * | 2015-11-30 | 2018-11-02 | 国家电网公司 | Novel eddy-current sensor combines the unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121021 |