CN201607647U - Vibration protecting device - Google Patents
Vibration protecting device Download PDFInfo
- Publication number
- CN201607647U CN201607647U CN2009202785190U CN200920278519U CN201607647U CN 201607647 U CN201607647 U CN 201607647U CN 2009202785190 U CN2009202785190 U CN 2009202785190U CN 200920278519 U CN200920278519 U CN 200920278519U CN 201607647 U CN201607647 U CN 201607647U
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- vibration
- chip microcomputer
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- protection device
- processing unit
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Abstract
The utility model discloses a vibration monitoring and protecting device which comprises a signal processing unit, a single-chip microcomputer and an alarming unit, wherein the signal processing unit is used for conducting processing of filtering, (integrating), amplifying and detecting on a signal collected by a vibration speed sensor to obtain a processed vibration speed signal or a vibration displacement signal, and the vibration speed signal or the vibration displacement signal can be freely switched over according to actual needs; a signal processing unit is connected with the input end of the single-chip microcomputer by a digital-to-analog converter; the single-chip microcomputer is used for processing the vibration speed electric signal or the vibration displacement electric signal, and transmits the processed electric signal to the outside through the output end; and the alarming unit is connected with the signal processing unit and is used for emitting an alarming signal when the vibration signal exceeds a preset alarming value. The vibration monitoring and protecting device can achieve the purpose of monitoring vibration in real time by adopting the reliable vibration speed sensor and fully utilizing the powerful computing and processing capabilities of the single-chip microcomputer.
Description
Technical field
The utility model relates to mechanical field, particularly relates to a kind of vibration protection device of rotating machinery.
Background technology
Rotating machinery often produces vibration at work, vibration can make the work efficiency of rotating machinery reduce, load increases, make some parts be easy to wearing and tearing, fatigue and reduction of service life, and vibration also can aggravating laboring environment (as noise etc.), 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.In the prior art, be used to detect and control the device of rotating machinery vibrating, generally can only detect or control individual event vibration index, as the frequency of detection vibration, or the amplitude that detects etc.How can measure different vibration parameters in different occasions according to different needs, having become this area has technical matters to be solved.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, designs a kind of vibration protection device, and this device can freely switch the detection output quantity of vibration velocity and vibration displacement, and with the flexible vibration that is applied to control rotating machinery of described output quantity.
For achieving the above object, the technical solution of the utility model provides a kind of vibration protection device, and described vibration protection device comprises:
Signal processing unit, described signal processing unit comprises wave filter, integrator, amplifier, wave detector and the switch that connects successively, between described wave filter and switch, also be parallel with second amplifier and second detector, described signal processing unit is used to gather the electric signal of vibration transducer output, and described electric signal is carried out filtering, integration, amplification and detection handle, or carry out filtering, amplification and detection and handle, obtain the electric signal of vibration velocity or vibration displacement, and carry out freely switching the electric signal of output as required through described switch;
Single-chip microcomputer, described signal processing unit is connected with the input end of single-chip microcomputer through digital to analog converter, and described single-chip microcomputer is used to handle described vibration velocity or vibration displacement electric signal, and the electric signal after will handling outwards sends by output terminal;
Alarm unit comprises alarm, and described alarm is connected with the output terminal that described monolithic connects, and when described alarm is used for electric signal when described speed or vibration displacement and exceeds default alarming value, sends alerting signal.
Wherein, also be connected with display unit on the output terminal of described single-chip microcomputer, described display unit is used to show the vibration velocity after described single-chip microcomputer is handled or the numerical value of vibration displacement.
Wherein, also be connected with the warning delay unit between the output terminal of described single-chip microcomputer and described alarm, described warning delay unit is used for time-delay and carries out alarm command.
Wherein, also be connected with relay on the input end of described single-chip microcomputer, described relay is used to control the vibration velocity or the vibration displacement of vibrating machine, or the control vibrating machine stops vibration.
Wherein, also be connected with the signal input part of button or keyboard on the input end of described single-chip microcomputer, described button or keyboard are positioned at the appearance of the casing of described vibration protection device, and described button or keyboard are used to import setup parameter.
Wherein, described signal processing unit, single-chip microcomputer, display unit, alarm unit, warning delay unit are connected with power module respectively.
Wherein, described signal processing unit, single-chip microcomputer, display unit, alarm unit, warning delay unit, relay and power module all interconnect by circuit board.
Advantage of the present utility model and beneficial effect are, by adopting vibrating speed sensors, make full use of powerful computing of single-chip microcomputer and processing power, have reached the purpose of real-time monitoring rotating machinery vibrating.And the merits and demerits switch can freely switch the output of vibration velocity and vibration displacement amount, has made things convenient for the user to select to use.Also adopt advanced integrated electronic circuit simultaneously, have and monitor accuracy and reliability preferably; The maloperation in the use has been avoided in the design of warning delay unit.
Description of drawings
Fig. 1-the 1st, the profile master of the utility model vibration protection device looks synoptic diagram;
Fig. 1-2 is the side cross-sectional schematic of the utility model vibration protection device;
Fig. 1-the 3rd, the utility model vibration protection device overlook cross-sectional schematic;
Fig. 2 is the three-dimensional appearance synoptic diagram of the utility model vibration protection device;
Fig. 3 is the schematic block circuit diagram of the utility model vibration protection device.
Wherein, 1: display screen; 2: button; 3: measure indication; 4: the indication of reporting to the police; 5: circuit board; 6: power supply; 7: signal processor; 8: terminals; 9: relay; 10: single-chip microcomputer.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1 to Figure 3, the utility model is a kind of vibration protection device, described vibration protection device comprises: signal processing unit, described signal processing unit comprises the wave filter that connects successively, integrator, amplifier, wave detector and switch, between described wave filter and switch, also be parallel with second amplifier and second detector, described signal processing unit is used to gather the electric signal of vibration transducer output, and the electric signal that described sensor obtains carried out filtering, integration, amplify and the detection processing, or carry out filtering, amplify and the detection processing, obtain the vibration velocity of rotating machinery or the electric signal of vibration displacement, and carry out freely switching output electric signal after treatment through described switch as required; Described vibration protection device also comprises single-chip microcomputer, described signal processing unit is connected with the input end of single-chip microcomputer through digital to analog converter, described single-chip microcomputer is used to handle described vibration velocity or vibration displacement electric signal, and the electric signal after will handling outwards sends by output terminal; Described vibration protection device also comprises alarm unit, comprises alarm, and described alarm is connected with the output terminal that described monolithic connects, and when described alarm is used for electric signal when described speed or vibration displacement and exceeds default alarming value, sends alerting signal.
The utility model also is connected with display unit on the output terminal of described single-chip microcomputer, described display unit is used to show the vibration velocity after described single-chip microcomputer is handled or the numerical value of vibration displacement.Also be connected with the warning delay unit between the output terminal of described single-chip microcomputer and described alarm, described warning delay unit is used for time-delay and carries out alarm command.Also be connected with relay on the input end of described single-chip microcomputer, described relay is used to control the vibration velocity or the vibration displacement of vibrating machine, or the control vibrating machine stops vibration.Also be connected with the signal input part of button or keyboard on the input end of described single-chip microcomputer, described button or keyboard are positioned at the appearance of the casing of described vibration protection device, and described button or keyboard are used to import setup parameter.
Signal processing unit described in the utility model, single-chip microcomputer, display unit, alarm unit, warning delay unit are connected with power module respectively.Described signal processing unit, single-chip microcomputer, display unit, alarm unit, warning delay unit, relay and power module all interconnect by circuit board.Wherein said alarm unit is the two-way relay, can be used for connecting sound and light alarm or other opertaing devices, has one-level warning function and secondary warning function.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 as machine and may 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 9 begins action simultaneously.
The utility model also is provided with button 2 and charactron shows, makes things convenient for the user to carry out the parameter setting.In addition, also be provided with the output of 4-20mA analog quantity, the output of RS485 digital signal.This device also designs the power on time-delay and the time-delay etc. of reporting to the police.Rotating machinery among this embodiment is installed simple with the vibration protection device; linear error is ± 1%, and resolution is 0.1mm/s (or 1 μ m), and detecting frequency range is 5-300Hz; measurement range is 0-50.0mm/s (0-500 μ m), and alarm range is the 0-100% full scale.
Be illustrated in figure 3 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 finished by vibrating speed sensors, offers single-chip microcomputer through filtering, (integration) detection, analog to digital conversion (D/A) after handling, and finishes the function that shows and report to the police by single-chip microcomputer again.Also has 4-20mA, outputs such as RS485 in addition.
The model of single-chip microcomputer adopts P89V51 (NXP) in the utility model, and described switch mainly is made up of analog switch CD4051, and single-chip microcomputer selects vibration velocity signal or vibration displacement signal to enter analog to digital conversion by A, the B of control CD4051, the height of C.
Wherein the 4-20mA electric current is the normalized current interface of industrial automation data collection and transmission, and it converts various sensing small signal simulation amounts to the normalized current ring interface, to improve transmission range and to reduce and disturb.RS485 is the serial communication standard.4-20mA, the purposes of outputs such as RS485 is that vibration values is transferred to DCS, PLC system.Relay is controlled stopping of vibrating machine by the electric motor starting loop of series connection vibrating machine.Described linear error is ± 1%, resolution is 0.1mm/s (or 1 μ m), measurement range is 0-50.0mm/s (0-500 μ m), and alarm range is the 0-100% full scale, is all guaranteed by single-chip microcomputer, 10 AD chips, 10 DA chips, accurate voltage reference circuits.Detecting frequency range is that 5-300Hz guarantees by bandwidth-limited circuit.
As can be seen from the above embodiments, the utility model embodiment makes full use of powerful computing of single-chip microcomputer and processing power by adopting vibrating speed sensors, has reached the purpose of real-time monitoring rotating machinery vibrating.And can freely switch vibration velocity and vibration displacement, make things convenient for the user to select to use.Adopt advanced integrated electronic circuit, have and monitor accuracy and reliability preferably; The maloperation in the use has been avoided in the design of warning delay unit.
The above only is a preferred implementation of the present 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 improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a vibration protection device is characterized in that, described vibration protection device comprises:
Signal processing unit, described signal processing unit comprises wave filter, integrator, amplifier, wave detector and the switch that connects successively, between described wave filter and switch, also be parallel with second amplifier and second detector, described signal processing unit is used to gather the electric signal of vibration transducer output, and described electric signal is carried out filtering, integration, amplification and detection handle, or carry out filtering, amplification and detection and handle, obtain the electric signal of vibration velocity or vibration displacement, and carry out freely switching the electric signal of output as required through described switch;
Single-chip microcomputer, described signal processing unit is connected with the input end of single-chip microcomputer through digital to analog converter, and described single-chip microcomputer is used to handle described vibration velocity or vibration displacement electric signal, and the electric signal after will handling outwards sends by output terminal;
Alarm unit comprises alarm, and described alarm is connected with the output terminal that described monolithic connects, and when described alarm is used for electric signal when described speed or vibration displacement and exceeds default alarming value, sends alerting signal.
2. vibration protection device as claimed in claim 1 is characterized in that, also is connected with display unit on the output terminal of described single-chip microcomputer, and described display unit is used to show the vibration velocity after described single-chip microcomputer is handled or the numerical value of vibration displacement.
3. vibration protection device as claimed in claim 2 is characterized in that, also is connected with the warning delay unit between the output terminal of described single-chip microcomputer and described alarm, and described warning delay unit is used for time-delay and carries out alarm command.
4. vibration protection device as claimed in claim 3 is characterized in that, also is connected with relay on the input end of described single-chip microcomputer, and described relay is used to control the vibration velocity or the vibration displacement of vibrating machine, or the control vibrating machine stops vibration.
5. vibration protection device as claimed in claim 4; it is characterized in that; also be connected with the signal input part of button or keyboard on the input end of described single-chip microcomputer, described button or keyboard are positioned at the appearance of the casing of described vibration protection device, and described button or keyboard are used to import setup parameter.
6. vibration protection device as claimed in claim 5 is characterized in that, described signal processing unit, single-chip microcomputer, display unit, alarm unit, warning delay unit are connected with power module respectively.
7. as each described vibration protection device in the claim 1 to 6, it is characterized in that described signal processing unit, single-chip microcomputer, display unit, alarm unit, warning delay unit, relay and power module all interconnect by circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202785190U CN201607647U (en) | 2009-11-10 | 2009-11-10 | Vibration protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202785190U CN201607647U (en) | 2009-11-10 | 2009-11-10 | Vibration protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201607647U true CN201607647U (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202785190U Expired - Fee Related CN201607647U (en) | 2009-11-10 | 2009-11-10 | Vibration protecting device |
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| CN (1) | CN201607647U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721463A (en) * | 2011-12-07 | 2012-10-10 | 上海瑞视仪表电子有限公司 | Written test apparatus for measuring rotating machinery reciprocating vibration by using piezoelectric effect |
| CN104457965A (en) * | 2014-11-21 | 2015-03-25 | 广西智通节能环保科技有限公司 | Vibration detection alarming device |
| CN105291756A (en) * | 2015-10-15 | 2016-02-03 | 珠海格力电器股份有限公司 | Vehicle-mounted air conditioner and control method and device thereof |
| CN105928609A (en) * | 2016-05-25 | 2016-09-07 | 国网宁夏电力公司固原供电公司 | GIS equipment vibration signal detector |
| CN106193999A (en) * | 2016-07-25 | 2016-12-07 | 肖锐 | Rectangular Concrete pouring pile hole machine |
| CN112283743A (en) * | 2020-10-28 | 2021-01-29 | 中煤大同能源有限责任公司 | Practical fan robbing wind monitoring system |
-
2009
- 2009-11-10 CN CN2009202785190U patent/CN201607647U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721463A (en) * | 2011-12-07 | 2012-10-10 | 上海瑞视仪表电子有限公司 | Written test apparatus for measuring rotating machinery reciprocating vibration by using piezoelectric effect |
| CN104457965A (en) * | 2014-11-21 | 2015-03-25 | 广西智通节能环保科技有限公司 | Vibration detection alarming device |
| CN105291756A (en) * | 2015-10-15 | 2016-02-03 | 珠海格力电器股份有限公司 | Vehicle-mounted air conditioner and control method and device thereof |
| CN105291756B (en) * | 2015-10-15 | 2018-04-13 | 珠海格力电器股份有限公司 | Vehicle-mounted air conditioner and control method and device thereof |
| CN105928609A (en) * | 2016-05-25 | 2016-09-07 | 国网宁夏电力公司固原供电公司 | GIS equipment vibration signal detector |
| CN106193999A (en) * | 2016-07-25 | 2016-12-07 | 肖锐 | Rectangular Concrete pouring pile hole machine |
| CN112283743A (en) * | 2020-10-28 | 2021-01-29 | 中煤大同能源有限责任公司 | Practical fan robbing wind monitoring system |
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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: 20101013 Termination date: 20121110 |