CN104020315A - Rotation speed sensor signal detection device - Google Patents
Rotation speed sensor signal detection device Download PDFInfo
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- CN104020315A CN104020315A CN201410229674.9A CN201410229674A CN104020315A CN 104020315 A CN104020315 A CN 104020315A CN 201410229674 A CN201410229674 A CN 201410229674A CN 104020315 A CN104020315 A CN 104020315A
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Abstract
The invention relates to a rotation speed sensor signal detection device, which comprises a handle, a power supply socket, a display screen, a button switch, a keyboard, a strip-shaped through hole and a sensor clip above the strip-shaped through hole which are arranged on the surface of the shell. The device also comprises a variable-frequency motor, a frequency converter, a single chip microcomputer, a signal adjusting chip, an infrared emitting diode and photodiode speed meter, an alternating current power supply and an AC/DC converter which are arranged inside the shell. A turntable is coaxially arranged on the left end head of the motor shaft; and the edge of the turntable is provided with an axial key phase groove. The invention creates a brand-new rotation speed sensor signal detection method, one hundred percent safe detection on the sensor can be realized in a physical quantity analog method, detection on working conditions of the sensor in different rotation speeds can be realized, the detection range is expanded, the detection ability is improved, and the detection data can be ensured to be fully and completely recorded.
Description
Technical field
The invention belongs to electric system sensor signal inspection technology field, especially a kind of signals of rotational speed sensor verifying attachment.
Background technology
When rotating machinery being carried out to vibration monitoring test, need to access vibration and tach signal.Wherein vibration signal is for recording the Oscillation Amplitude at unit each bearing, each position on time shaft; Tach signal is for recording the rotational speed of unit on time shaft, and data collection and analysis equipment can go out the two mutual corresponding calculating and plotting the collection of illustrative plates that is related to of vibration and rotating speed, and this is very important and crucial to carrying out Vibration Analysis diagnosis.The vibration monitoring test overwhelming majority is carried out for unit starting process, need to when compressor emergency shutdown, just to equipment, install vibration and speed probe, opens test and carry out monitoring record to starting overall process Vibration Condition before starting.If occur abnormal or malfunctioningly will being very serious problem so concerning monitoring test at unit starting process medium speed signal, this will cause the distortion of a large amount of significant datas even to be lost.And large-scale unit one-shot cost is at nearly 1,000,000 yuan, can not shut down debug signal again.Therefore in monitoring, start as last to test to guarantee that sensor signal is reliable and stable perfectly safe to signal, but at present the check of tach signal is gone back to the effective way of neither one, have very large drawback and leak.
Conventional speed probe is divided into two types, photoelectricity and eddy current, while using photoelectric sensor, need a Special reverse light belt on rotating shaft surface label in advance, infrared light-wave can be launched and accept to photoelectric probe, thereby the rotating shaft probe that often rotates a circle just can receive an infrared external reflection and reaches the measurement to rotating speed like this; While using eddy current sensor, need on rotating shaft surface, to drive a keyway in advance, probe can send electromagnetic field of high frequency makes peripheral conductor produce electromagnetic induction and survey this induction, the counting of realization to rotating speed thereby this induction receiving when one week keyway process probe of rotor changes.Present stage is to adopt hand to shake the method for reflective tape to the check of photoelectric sensor, and this method is very clumsy, easily causes personnel tired, and the hand frequency of shaking is lower often can not be identified by probe, more cannot know the duty of probe when high rotating speed.The situation that once occurred under the slow-speed of revolution non-metering under the high rotating speed of normal work.Eddy current sensor is not had to what good method, and just measuring sonde has no-voltage to pass back.This effect of playing for the duty of check probe is very little.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, provides a kind of signals of rotational speed sensor verifying attachment.
The present invention solves its technical matters and takes following technical scheme to realize:
A kind of signals of rotational speed sensor verifying attachment, comprise device case, described housing is divided into left part housing, central enclosure and right part housing, upper surface in central enclosure is provided with handle, be convenient to the movement of device, on the front side wall of central enclosure, be fixed with supply socket, upper surface middle part at right part housing is fixed with display screen, front side is fixed with pushbutton switch, rear side is fixed with keyboard, in the upper surface middle part of left part housing, be shaped with the strip through hole of fore-and-aft direction, above strip through hole, being fixed with the sensor consisting of two intermediate plates presss from both sides, front end at sensor folder is shaped with the sensing station hole consisting of each semicircle of two intermediate plates over against strip through hole,
Middle part in housing is fixed with variable-frequency motor, the input of variable-frequency motor is connected with the control end of frequency converter, the input end of frequency converter is connected with the communication port of single-chip microcomputer, single-chip microcomputer utilizes respectively three I/O ports and keyboard, display screen and signal are adjusted chip and are connected, the input end that signal is adjusted chip is connected with infrared tube knotmeter, this infrared tube knotmeter is fixed on inner walls near the place of variable-frequency electric arbor, frequency converter is directly accessed on AC power one tunnel of access, one tunnel powers to single-chip microcomputer through AC/DC converter, the motor shaft of variable-frequency motor extends transverse to the left part in housing, left end head at motor shaft is coaxially installed rotating disk, at the edge of rotating disk, have an axial key phase groove.
And described variable-frequency motor rotating speed is in the scope of 0-3600rpm.
And described frequency converter is that model is Delta VFD015EL43A simple type frequency converter, the model of described single-chip microcomputer is msp430f149.
And, described rotating disk is for adopting aluminum alloy materials to make, thickness is 1cm, diameter 10cm, the key phase groove depth of described disk edge is 0.5cm, and wide is 1cm, key phase trench bottom polishing light, or post reflective tape, rotating disc remaining surface is all coated pitch-dark so that photoelectric sensor perception reflex signal.
And, in two clamping plate of described sensor folder, speckle with rubber blanket.
And, the rectangular opening that the strip through hole on described left part housing is 5cm * 2cm.
Advantage of the present invention and good effect are:
1, the present invention is directed to speed probe and in opening machine vibration monitoring, can only in the situation that there is no tach signal, carry out Installation and Debugging and must guarantee the sensor connecting line demand that normally nothing is delayed work, start a kind of brand-new signals of rotational speed sensor method of inspection.
2, the present invention has designed and has been specifically designed to the rotary simulation device that sends actual physical tach signal, with actual physical change, comes actuated sensor to reach the object to its check.The method is owing to being the method that has adopted physical quantity simulation, can realize safe against all possibilities sensor being tested.
3, in the present invention, adopt variable-frequency motor can realize the check to sensor working condition under different rotating speeds as rotating power source, widened test range, improved detectability.
4, in the present invention, on analogue means, innovate adopt clip fixture to play can be to sensor fast assembling-disassembling and the effect of adjustable range easily.Take this method can greatly improve the reliability of rotating machinery Vibration on Start-up monitoring test medium speed sensor, guarantee that test figure can complete documentation, improve test capability.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of apparatus of the present invention;
Fig. 2 is the inner structure schematic diagram of apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention process is further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Inventive concept
Ultimate principle of the present invention is the rotation of emulation rotating machinery rotating shaft, with real physics rotating speed trigger sensor to check the job stability of the whether unimpeded of its signalling channel and equipment.
A kind of signals of rotational speed sensor verifying attachment, as shown in Figure 1, comprise device case, described housing is divided into left part housing 11, central enclosure 10 and right part housing 8, upper surface in central enclosure is provided with handle 4, be convenient to the movement of device, on the front side wall of central enclosure, be fixed with supply socket 9, upper surface middle part at right part housing is fixed with display screen 6, front side is fixed with pushbutton switch 7, rear side is fixed with keyboard 5, in the upper surface middle part of left part housing, be shaped with the strip through hole 1 of fore-and-aft direction, above strip through hole, be fixed with the sensor folder 3 being formed by two intermediate plates, front end at sensor folder is shaped with the sensing station hole 2 consisting of each semicircle of two intermediate plates over against strip through hole, as shown in Figure 2, middle part in housing is fixed with variable-frequency motor, the input of variable-frequency motor is connected with the control end of frequency converter, the input end of frequency converter is connected with the communication port of single-chip microcomputer, single-chip microcomputer utilizes respectively three I/O ports to be connected with keyboard, by keyboard, to single-chip microcomputer, send adjustment instruction, be connected with display screen, the rotating speed that shows constantly variable-frequency motor, adjusting chip with signal is connected, the signal of chip is adjusted in reception from signal, the input end that signal is adjusted chip is connected with infrared tube knotmeter, this knotmeter is fixed on inner walls near the place of variable-frequency electric arbor, be used for measuring variable-frequency motor rotating speed, frequency converter is directly accessed on AC power one tunnel of access, one tunnel powers to single-chip microcomputer through AC/DC converter, the motor shaft of variable-frequency motor extends transverse to the left part in housing, left end head at motor shaft is coaxially installed rotating disk, at the edge of rotating disk, have an axial key phase groove.
In specific embodiment of the invention, described variable-frequency motor rotating speed is in the scope of 0-3600rpm.
In specific embodiment of the invention, described frequency converter is that model is Delta VFD015EL43A simple type frequency converter, the model of described single-chip microcomputer is msp430f149, after inputting variable-frequency motor tachometer value by keyboard, be sent to single-chip microcomputer, single-chip microcomputer is sent to respectively display screen and frequency converter by this signal, frequency converter is controlled motor speed according to this control signal again, being fixed on infrared tube knotmeter side in housing obtains and this numerical signal is sent to signal after motor speed value and adjusts chip, signal is adjusted chip the signal after processing is dealt into single-chip microcomputer, single-chip microcomputer outputs to LCDs by this actual measurement rotating speed again.
In specific embodiment of the invention, described rotating disc is for adopting aluminum alloy materials to make, thickness is 1cm, diameter 10cm, the key phase groove depth at described rotating disc edge is 0.5cm, and wide is 1cm, key phase trench bottom polishing light, or post reflective tape, rotating disc remaining surface is all coated pitch-dark so that photoelectric sensor perception reflex signal.
In specific embodiment of the invention, in two clamping plate of described sensor folder, speckle with rubber blanket to improve friction force, better fixation of sensor.
In specific embodiment of the invention, the rectangular opening that the strip through hole on described left part housing is 5cm * 2cm.
Claims (6)
1. a signals of rotational speed sensor verifying attachment, it is characterized in that: comprise device case, described housing is divided into left part housing, central enclosure and right part housing, upper surface in central enclosure is provided with handle, be convenient to the movement of device, on the front side wall of central enclosure, be fixed with supply socket, upper surface middle part at right part housing is fixed with display screen, front side is fixed with pushbutton switch, rear side is fixed with keyboard, in the upper surface middle part of left part housing, be shaped with the strip through hole of fore-and-aft direction, above strip through hole, being fixed with the sensor consisting of two intermediate plates presss from both sides, front end at sensor folder is shaped with the sensing station hole consisting of each semicircle of two intermediate plates over against strip through hole,
Middle part in housing is fixed with variable-frequency motor, the input of variable-frequency motor is connected with the control end of frequency converter, the input end of frequency converter is connected with the communication port of single-chip microcomputer, single-chip microcomputer utilizes respectively three I/O ports and keyboard, display screen and signal are adjusted chip and are connected, the input end that signal is adjusted chip is connected with infrared tube knotmeter, this infrared tube knotmeter is fixed on inner walls near the place of variable-frequency electric arbor, frequency converter is directly accessed on AC power one tunnel of access, one tunnel powers to single-chip microcomputer through AC/DC converter, the motor shaft of variable-frequency motor extends transverse to the left part in housing, left end head at motor shaft is coaxially installed rotating disk, at the edge of rotating disk, have an axial key phase groove.
2. signals of rotational speed sensor verifying attachment according to claim 1, is characterized in that: described variable-frequency motor rotating speed is in the scope of 0-3600rpm.
3. signals of rotational speed sensor verifying attachment according to claim 1, is characterized in that: described frequency converter is that model is Delta VFD015EL43A simple type frequency converter, and the model of described single-chip microcomputer is msp430f149.
4. signals of rotational speed sensor verifying attachment according to claim 1, it is characterized in that: described rotating disk is for adopting aluminum alloy materials to make, thickness is 1cm, diameter 10cm, the key phase groove depth of described disk edge is 0.5cm, and wide is 1cm, key phase trench bottom polishing light, or post reflective tape, rotating disc remaining surface is all coated pitch-dark so that photoelectric sensor perception reflex signal.
5. signals of rotational speed sensor verifying attachment according to claim 1, is characterized in that: in two clamping plate of described sensor folder, speckle with rubber blanket.
6. signals of rotational speed sensor verifying attachment according to claim 1, is characterized in that: the rectangular opening that the strip through hole on described left part housing is 5cm * 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229674.9A CN104020315B (en) | 2014-05-28 | 2014-05-28 | Rotation speed sensor signal detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229674.9A CN104020315B (en) | 2014-05-28 | 2014-05-28 | Rotation speed sensor signal detection device |
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| CN104020315A true CN104020315A (en) | 2014-09-03 |
| CN104020315B CN104020315B (en) | 2017-02-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907131A (en) * | 2015-06-01 | 2015-09-16 | 遵义市立新机械有限责任公司 | Hammer crusher rotation speed monitoring system |
| CN105092895A (en) * | 2015-08-12 | 2015-11-25 | 江苏海事职业技术学院 | Speed sensor quality tester |
| CN106324289A (en) * | 2016-10-31 | 2017-01-11 | 吉林大学 | Verification system of automobile wheel speed real-time detector based on active vision |
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| DE19632247A1 (en) * | 1996-08-09 | 1998-02-12 | Siemens Ag | Motor vehicle speed measurement method and device |
| JP2003302421A (en) * | 2002-04-11 | 2003-10-24 | Nissan Motor Co Ltd | Diagnostic device for revolution sensor |
| CN2762142Y (en) * | 2004-07-30 | 2006-03-01 | 刘柏榆 | Testing device for vehicle wheel speed sensor |
| CN101144828A (en) * | 2006-09-13 | 2008-03-19 | 上海通运汽车科技有限公司 | Non-contact speed gage calibrating apparatus |
| CN101769940A (en) * | 2009-12-24 | 2010-07-07 | 宁波市北仑恒铁机电制造有限公司 | Novel test device of photoelectric revolution speed transducer |
| CN102539837A (en) * | 2011-12-26 | 2012-07-04 | 苏州工业园区广福汽保机电设备有限公司 | Calibrator for calibrating revolution meter of diesel engine |
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2014
- 2014-05-28 CN CN201410229674.9A patent/CN104020315B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632247A1 (en) * | 1996-08-09 | 1998-02-12 | Siemens Ag | Motor vehicle speed measurement method and device |
| JP2003302421A (en) * | 2002-04-11 | 2003-10-24 | Nissan Motor Co Ltd | Diagnostic device for revolution sensor |
| CN2762142Y (en) * | 2004-07-30 | 2006-03-01 | 刘柏榆 | Testing device for vehicle wheel speed sensor |
| CN101144828A (en) * | 2006-09-13 | 2008-03-19 | 上海通运汽车科技有限公司 | Non-contact speed gage calibrating apparatus |
| CN101769940A (en) * | 2009-12-24 | 2010-07-07 | 宁波市北仑恒铁机电制造有限公司 | Novel test device of photoelectric revolution speed transducer |
| CN102539837A (en) * | 2011-12-26 | 2012-07-04 | 苏州工业园区广福汽保机电设备有限公司 | Calibrator for calibrating revolution meter of diesel engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907131A (en) * | 2015-06-01 | 2015-09-16 | 遵义市立新机械有限责任公司 | Hammer crusher rotation speed monitoring system |
| CN104907131B (en) * | 2015-06-01 | 2017-12-19 | 遵义市立新机械有限责任公司 | A kind of hammer mill rotation speed monitoring system |
| CN105092895A (en) * | 2015-08-12 | 2015-11-25 | 江苏海事职业技术学院 | Speed sensor quality tester |
| CN106324289A (en) * | 2016-10-31 | 2017-01-11 | 吉林大学 | Verification system of automobile wheel speed real-time detector based on active vision |
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| CN104020315B (en) | 2017-02-15 |
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Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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