CN202351257U - Wall-hung type intelligent tachometer in case of reverse rotating speed - Google Patents

Wall-hung type intelligent tachometer in case of reverse rotating speed Download PDF

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Publication number
CN202351257U
CN202351257U CN201120408333XU CN201120408333U CN202351257U CN 202351257 U CN202351257 U CN 202351257U CN 201120408333X U CN201120408333X U CN 201120408333XU CN 201120408333 U CN201120408333 U CN 201120408333U CN 202351257 U CN202351257 U CN 202351257U
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CN
China
Prior art keywords
unit
signal
fast
alarm unit
reversing
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Expired - Fee Related
Application number
CN201120408333XU
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Chinese (zh)
Inventor
徐志强
吴娟芬
缪东卫
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WUXI HOUDE AUTOMATION METER CO Ltd
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WUXI HOUDE AUTOMATION METER CO Ltd
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Priority to CN201120408333XU priority Critical patent/CN202351257U/en
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Publication of CN202351257U publication Critical patent/CN202351257U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a wall-hung type intelligent tachometer in case of a reverse rotating speed, which comprises a signal detection unit connected with a signal processing unit, a signal display unit, an output unit, an alarm unit and a reverse rotating speed alarm unit. The alarm unit and the reverse rotating speed alarm unit are adopted to detect a rotating speed and reverse rotating signals, and by utilizing strong operation and processing capabilities of a single chip microcomputer, the aim of monitoring the rotating speed and reverse rotation in real time is achieved.

Description

A kind of wall-hanging fast intelligent revolution meter of reversing
Technical field
The utility model belongs to the technology of instrument and meter field, relates to a kind of tachometer gage, particularly a kind of wall-hanging fast intelligent revolution meter of reversing.
Background technology
In rotating machinery technology such as existing industrial water supply pump, do not allow to occur reversal development usually, when counter-rotating occurring, just should take immediate steps.Simultaneously to ascend to heaven suddenly be one of the most dangerous situation to rotating speed, consequence that might bringing on a disaster property, so the tachometric survey of rotating machinery is extremely important; The accurate performance of rotating machinery in time forecast and detected to the counter-rotating situation can not and unfailing performance is not high yet existing tachometer gage instrument occurs.
The utility model content
The purpose of the utility model is to overcome the defective that exists in the prior art, designs a kind of the counter-rotating and reports to the police and make detection accuracy and the high wall-hanging of the reliability fast intelligent revolution meter of reversing.
Be to realize that above-mentioned purpose, the technical scheme of the utility model are a kind of wall-hanging of design fast intelligent revolution meter of reversing, and comprising:
Detecting signal unit comprises being arranged near the sensor of tested rotating speed parts, is used to gather tach signal, and converts tach signal to corresponding electric signal, then said electric signal is sent to signal processing unit;
Signal processing unit; Comprise the filtering circuit, amplifying circuit, shaping circuit, photoisolator and the single-chip microcomputer that are connected in turn on the circuit board; Be used to receive the electric signal of detecting signal unit; And said electric signal handled, through output port result is sent to signal display unit, output unit, alarm unit and/or the fast alarm unit that reverses then;
Signal display unit comprises display, is used to show detected tach signal;
Output unit converts the electric signal of receiving signal processing unit into current signal output through photoisolator, digital to analog converter and converter successively;
Alarm unit comprises warning indicator and relay, and rotating speed reaches the tachometer value of reporting to the police and being provided with, and the electric signal of signal processing unit is sent to the warning indicator and the relay of alarm unit simultaneously through photoisolator;
Fast alarm unit reverses; Comprise warning indicator and relay; When counter-rotating occurring, the electric signal of signal processing unit is sent to the warning indicator and the relay of the fast alarm unit of counter-rotating simultaneously through photoisolator, and the relay of the fast alarm unit that reverses is used for the control counter-rotating.
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 adjustable chronotron.
For the ease of measuring a plurality of rotating speed parts in a plurality of rotating speed equipment or the same equipment, optimized technical scheme is, described sensor has one at least, also can use a plurality of of the same type or sensors of various types, and preferred sensor can be used current vortex sensor.
For the ease of reading testing result, further optimized technical scheme is, said display can be selected the charactron display for use, is used to show the rotating speed after the said processing.
In order to guarantee the normal operation of speed measuring device, further optimized technical scheme is, said tachometer gage also comprises power module, is used to each unit power supply.
Be destroyed for fear of interference or tachometer gage; Further optimized technical scheme is; Said tachometer gage also comprises housing; Said signal display unit, signal processing unit, alarm unit and counter-rotating speed alarm unit are located in the housing, on the panel of said housing, be provided with the interface that connects detecting signal unit and output unit interface, be provided with display window with button is set.
The advantage and the beneficial effect of the utility model are: owing to adopt integrated circuit at the utility model, have and monitor accuracy and reliability preferably; Adopt the fast alarm unit of counter-rotating, when counter-rotating speed occurring tachometer gage is shut down, can protect tachometer gage can not damage; Owing between signal processing unit and alarm unit, be provided with chronotron, can guarantee that the signal of alarm unit is steadily exported.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams;
Fig. 2 is the utility model structure rating synoptic diagram;
Fig. 3 is the utility model shell synoptic diagram.
Wherein, 1, housing; 2, display; 3, warning indicator; 4, circuit board; 5, single-chip microcomputer; 6, power module; 7, signal processing unit; 8, relay a, 9, relay b.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is further described.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection domain of the utility model with this.
The technical scheme of the utility model practical implementation is:
Embodiment 1
Shown in Fig. 1 to 3, the utility model is a kind of wall-hanging fast intelligent revolution meter of reversing, and comprising:
Detecting signal unit comprises being arranged near the sensor of tested rotating speed parts, is used to gather tach signal, and converts tach signal to corresponding electric signal, then said electric signal is sent to signal processing unit 7;
Signal processing unit 7; Comprise the filtering circuit, amplifying circuit, shaping circuit, photoisolator and the single-chip microcomputer 5 that are connected in turn on the circuit board 4; Be used to receive the electric signal of detecting signal unit; And said electric signal handled, through output port result is sent to signal display unit, output unit, alarm unit and/or the fast alarm unit that reverses then;
Signal display unit comprises display 2, is used to show detected tach signal;
Output unit converts the electric signal of receiving signal processing unit into current signal output through photoisolator, digital to analog converter and converter successively;
Alarm unit comprises warning indicator 3 and relay a8, and rotating speed reaches the tachometer value of reporting to the police and being provided with, and the electric signal of signal processing unit is sent to the warning indicator 3 and relay a8 of alarm unit simultaneously through photoisolator;
Fast alarm unit reverses; Comprise warning indicator and relay b9; When counter-rotating occurring, the electric signal of signal processing unit is sent to warning indicator and the relay b9 of the fast alarm unit of counter-rotating simultaneously through photoisolator, and the relay b9 of the fast alarm unit that reverses is used for control and reverses.
Embodiment 2
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.
Embodiment 3
On the basis of embodiment 2, for the ease of better adjusting, said chronotron is adjustable chronotron.
Embodiment 4
On the basis of embodiment 1, for the ease of measuring a plurality of rotating speed parts in a plurality of rotating speed equipment or the same equipment, optimized technical scheme is that described sensor has one at least.
Embodiment 5
On the basis of embodiment 4, better in order to make measurement effect, sensor can be used current vortex sensor.
Embodiment 6
On the basis of embodiment 1, for the ease of reading testing result, further optimized technical scheme is, said display 2 can be selected the charactron display for use, is used to show the rotating speed after the said processing.
Embodiment 7
On the basis of embodiment 1, in order to guarantee the normal operation of speed measuring device, further optimized technical scheme is, said tachometer gage also comprises power module 6, is used to each unit power supply
Embodiment 8
On the basis of embodiment 1; Be destroyed for fear of interference or tachometer gage; Further optimized technical scheme is; Said tachometer gage also comprises housing 1, and said signal display unit, signal processing unit 7, alarm unit and counter-rotating speed alarm unit are located in the housing, on the panel of said housing 1, be provided with the interface that connects detecting signal unit and output unit interface, be provided with display 2 window with button is set.
The operation principles of the utility model is: information process unit is No. three relays, can be used for connecting sound and light alarm or other opertaing devices, and hypervelocity has one-level warning function and secondary warning function, is equipped with a counter-rotating warning function specially.When marked change has taken place tachometer value, need adopt remedial measures, machine can continue operation; Should be provided with one-level and report to the police this moment, when tachometer value continues to increase, continues operation like machine and possibly cause damage; Should take urgent measure and reduce rotating speed or shutdown, should be provided with secondary and report to the police this moment.When counter-rotating takes place in machinery, arrestment immediately.The over speed of rotation alarming value should can be set arbitrarily in measurement range.When rotary speed parameter surpassed alarm setting value, the pilot lamp of device should send alerting signal, and relay a8 begins action simultaneously.When counter-rotating, the counter-rotating pilot lamp of device sends alerting signal, and corresponding relay b9 begins action simultaneously.The utility model also is provided with button and charactron shows, makes things convenient for the user to carry out the parameter setting.In addition, also have the output of 4-20mA analog quantity, the output of RS485 digital signal.This device also is designed with 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 fast meter apparatus of intelligence counter-rotating, range: 1-9999rpm, and display precision ± 1rpm, reporting to the police is provided with scope 0-100% full scale.
Be illustrated in figure 1 as the schematic block circuit diagram of the fast meter apparatus of rotating machinery usefulness intelligence counter-rotating among the utility model embodiment.Adopt the 220V ac power supply, signals collecting is accomplished by the two-way current vortex, isolates through filtering, detection, shaping, photoelectricity, offers single-chip microcomputer 5 after the processing, accomplishes the function that shows and report to the police by single-chip microcomputer 5 again.Also has 4-20mA, outputs such as RS485 in addition.
Can find out by above embodiment; The utility model embodiment is through adopting two current vortex sensors; On tachometer disc with three five equilibrium teeth, adopt to be mutually the special mounting means of 90 degree, measure rotating speed and reverse signal; Utilize single-chip microcomputer 5 powerful computing and processing power, reached the purpose of real-time monitoring rotating machinery rotating speed and counter-rotating.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 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 wall-hanging fast intelligent revolution meter of reversing is characterized in that, comprising:
Detecting signal unit comprises being arranged near the sensor of tested rotating speed parts, is used to gather tach signal, and converts tach signal to corresponding electric signal, then said electric signal is sent to signal processing unit;
Signal processing unit; Comprise the filtering circuit, amplifying circuit, shaping circuit, photoisolator and the single-chip microcomputer that are connected in turn on the circuit board; Be used to receive the electric signal of detecting signal unit; And said electric signal handled, through output port result is sent to signal display unit, output unit, alarm unit and/or the fast alarm unit that reverses then;
Signal display unit comprises display, is used to show detected tach signal;
Output unit converts the electric signal of receiving signal processing unit into current signal output through photoisolator, digital to analog converter and converter successively;
Alarm unit comprises warning indicator and relay, and rotating speed reaches the tachometer value of reporting to the police and being provided with, and the electric signal of signal processing unit is sent to the warning indicator and the relay of alarm unit simultaneously through photoisolator;
Fast alarm unit reverses; Comprise warning indicator and relay; When counter-rotating occurring, the electric signal of signal processing unit is sent to the warning indicator and the relay of the fast alarm unit of counter-rotating simultaneously through photoisolator, and the relay of the fast alarm unit that reverses is used for the control counter-rotating.
2. the wall-hanging as claimed in claim 1 fast intelligent revolution meter of reversing is characterized in that: also be included between signal processing unit and the alarm unit and be provided with chronotron.
3. the wall-hanging as claimed in claim 2 fast intelligent revolution meter of reversing, it is characterized in that: said chronotron is adjustable chronotron.
4. the wall-hanging as claimed in claim 3 fast intelligent revolution meter of reversing, it is characterized in that: described sensor has one at least.
5. the wall-hanging as claimed in claim 4 fast intelligent revolution meter of reversing, it is characterized in that: said sensor is a current vortex sensor.
6. the wall-hanging as claimed in claim 5 fast intelligent revolution meter of reversing, it is characterized in that: said display is the charactron display.
7. the wall-hanging as claimed in claim 6 fast intelligent revolution meter of reversing is characterized in that: comprise power module.
8. like each described wall-hanging of claim 1 to 7 fast intelligent revolution meter of reversing; It is characterized in that: also comprise housing; Said signal display unit, signal processing unit, alarm unit and counter-rotating speed alarm unit are located in the housing, on the panel of said housing, be provided with the interface that connects detecting signal unit and output unit interface, be provided with the window of display and button be set.
CN201120408333XU 2011-10-21 2011-10-21 Wall-hung type intelligent tachometer in case of reverse rotating speed Expired - Fee Related CN202351257U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120408333XU CN202351257U (en) 2011-10-21 2011-10-21 Wall-hung type intelligent tachometer in case of reverse rotating speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120408333XU CN202351257U (en) 2011-10-21 2011-10-21 Wall-hung type intelligent tachometer in case of reverse rotating speed

Publications (1)

Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103698550A (en) * 2012-12-17 2014-04-02 武汉理工大学 Ship tail shaft speed measurement device with single Hall proximity type sensor
CN104007282A (en) * 2014-06-13 2014-08-27 四川亚美动力技术有限公司 Engine gasifier turbine rotating-speed and/or free turbine rotating-speed detection circuit
CN104533632A (en) * 2014-12-02 2015-04-22 哈尔滨广瀚燃气轮机有限公司 Gas turbine rotating-speed conditioning module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103698550A (en) * 2012-12-17 2014-04-02 武汉理工大学 Ship tail shaft speed measurement device with single Hall proximity type sensor
CN103698550B (en) * 2012-12-17 2017-01-11 武汉理工大学 Ship tail shaft speed measurement device with single Hall proximity type sensor
CN104007282A (en) * 2014-06-13 2014-08-27 四川亚美动力技术有限公司 Engine gasifier turbine rotating-speed and/or free turbine rotating-speed detection circuit
CN104533632A (en) * 2014-12-02 2015-04-22 哈尔滨广瀚燃气轮机有限公司 Gas turbine rotating-speed conditioning module

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120725

Termination date: 20121021

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