CN103935862A - Constant rotation speed generating device for detecting elevator speed limiter tester - Google Patents
Constant rotation speed generating device for detecting elevator speed limiter tester Download PDFInfo
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- CN103935862A CN103935862A CN201410197876.XA CN201410197876A CN103935862A CN 103935862 A CN103935862 A CN 103935862A CN 201410197876 A CN201410197876 A CN 201410197876A CN 103935862 A CN103935862 A CN 103935862A
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Abstract
The invention relates to a constant rotation speed generating device for detecting an elevator speed limiter tester. The constant rotation speed generating device mainly comprises a stepped motor control module, a microcontroller, a liquid crystal display module, a keyboard management module, a printer module and a communication module. The constant rotation speed generating device has an automatic testing work mode and a manual testing work mode, if the automatic testing work mode is selected, a plurality of rotation speed values can be set in one time of measurement, and when the set rotation speeds are generated, the set rotation speeds can be automatically and sequentially generated; if the manual testing work mode is selected, only rotation speed value can be set in one time. The constant rotation speed generating device further has the ability of communicating with a PC, the PC can be used for collecting and displaying the speed of the constant rotation speed generating device, and the constant rotation speed generating device has the advantages of being high in measuring precision, simple in structure, convenient to operate, and the like.
Description
Technical field
The present invention is specifically related to a kind of permanent rotating speed generation device of using for examining and determine elevator governor tester.
Background technology
Elevator governor is component part very important in elevator, and its health status affects the safety and reliability of elevator.The health status of elevator governor can have been tested by elevator governor tester.At present, the application of elevator governor tester is very extensive, and still, degradation problem under survey precision decline or transducer sensitivity may appear in velocity limiter tester after the use of long period.Thereby, need to carry out regular calibrating and calibration to the tester of elevator governor, to ensure the availability of velocity limiter tester.At present, very rare for the calibrating installation of elevator governor tester.
In the calibrating installation of tester, it is most important function that permanent rotating speed produces, for examining and determine the accuracy of velocity limiter tester to velocity measurement, and the sensitivity of Hall element (being generally contactless).General, elevator governor tester verification device need to pre-set a standard revolving speed, then with the sensor of tester, measures this rotating speed, and whether the measured error of assessing tester by means of the error between standard configuration and measuring speed goes wrong.At present, conventional standard revolving speed generation device is generally comprised of controller, actuator and change speed gear box, adopt stepping motor as the main motor of executing, moving turning with the frequency control way control step motor of open loop, in order to expand range of speed, stepping motor is by dragging high-precision speed-changing gear box, carry out speedup or deceleration, at each output shaft of speed-changing gear box, export corresponding standard revolving speed, rotating speed output accuracy is very high, and speed adjustable range is large, but it is high that the shortcoming of this method is cost, volume is larger, and weight is large, carries inconvenience; And, in the process that pre-sets rotating speed (the more than standard revolving speed of possibility) of the standard of generation, can not once produce the rotating speed result of required setting, it is last that as need be known, the linear velocity of institute's pulley sheaves is big or small, also will rotating speed of row and the corresponding table of linear velocity, carry out secondary computing, detection efficiency is not high.
Summary of the invention
In order to solve the existing some shortcomings part of above-mentioned prior art, the invention provides a kind of high-precision permanent rotating speed generation device, can be in one-shot measurement process, the tachometer value size of a plurality of needs is set, can select test or two kinds of mode of operation of manual test automatically, result of a measurement also can directly show and print.
To achieve these goals, the present invention adopts following technical scheme:
Permanent rotating speed generation device forms and comprises: for carrying out the microcontroller DSP of data processing and control, for carrying out the Keyboard management module of button operation, LCD MODULE for page menus and testing result demonstration, the step motor control module producing for permanent rotating speed, the signal conditioning circuit that carries out shaping and filtering for the speed signal that photoelectric encoder is collected, for printing the printer module of last testing result, for the communication module that carries out communication with PC.Wherein said step motor control module is by actuator, stepping motor, photoelectric encoder and the wheel disc that tests the speed form, the stepping motor of selecting is the stepping motor of closed loop, photoelectric encoder is 2500 lines, the wheel disc that tests the speed is made by metallic material, diameter is 100mm, thickness is 3～5mm, what adopt with the module of PC communication is the mode that USB turns serial ports, PC host computer procedure is constant speed control and the display panel of writing with LABVIEW, can control and the demonstration of result this perseverance rotating speed generation device.
While using permanent rotating speed generation device to examine and determine with speed calibration to elevator governor tester, little magnet steel number can be set.The number of little magnet steel can be: 1, 2 or 4, realize rotating speed * 1, * 2, * 4 multiplication, when 1 little magnet steel is set, paste 1 little magnet steel on the outer of wheel disc of testing the speed, when 2 little magnet steel are set, stick on respectively the two ends of the wheel diameter that tests the speed, be in 180 ° between the two, when 4 little magnet steel are set, stick on respectively and test the speed on wheel disc outer, between adjacent two, become 900, the little magnet steel of pasting on wheel disc that tests the speed will be evenly distributed, the rotating speed range of selecting is that little magnet steel number is wanted rationally, can reach like this rotating speed " multiplication " effect, can examine and determine the velocity limiter tester that can measure higher rotation speed.
The mode of operation of this permanent rotating speed generation device mainly contains two kinds: manual test and automatically test.While selecting " test automatically " mode of operation, set in the wheel diameter that tests the speed, measurement and need after a plurality of tachometer values sizes that produce, little magnet steel number, control step motor produces set tachometer value size successively automatically, and show successively actual testing result, while having produced the tachometer value of last setting, show final all testing results, and call chopping machine and print testing result; While selecting " manual test " mode of operation, start to detect after the wheel diameter that tests the speed, tachometer value size, little magnet steel number are set, reach after the rotating speed size of setting, uniform rotation also shows corresponding testing result and prints.
Technique effect of the present invention is:
(1) a kind of portable permanent rotating speed generation device of the present invention has two kinds of mode of operation, under automatic test job mode, the tachometer value of a plurality of needs can be set, and produce successively automatically these tachometer values, avoided traditional standard rotating speed generating means when producing one group of rotating speed, can not in a step, complete having problems of all rotating speeds, this device directly shows the size of rotating speed and corresponding linear velocity simultaneously, and print whole testing result by chopping machine, testing result is directly perceived, comprehensive, improves inspector's work efficiency.
(2) the present invention adopts closed-loop motor system to produce constant rotational speed, there is rotating speed and control accurately, rotate the features such as reliable, and carry high resolution encoder, simultaneously, utilize digital signal processor DSP to implement motor speed measurement, thereby can realize the measurement of degree of precision.
(3) the present invention adopts the simulation rotating speed technology of a plurality of little magnet steel verification test instrument, can reduce system weight and volume so that the scope multiplication of tester speed calibrating meanwhile, has been simplified system structure, has reduced cost simultaneously.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is software flow pattern of the present invention
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated.
As shown in Figure 1, the present invention is a kind of permanent rotating speed generation device for the calibrating of elevator governor tester, comprises its concrete composition: for carrying out the microcontroller DSP of data processing and control, and the TMS320LF2407A of the control chip ShiTI company selecting; For carrying out the Keyboard management module of button operation, by 5 buttons, complete whole operating process, be respectively the function of " increase ", " reducing ", " returning ", " determining ", " stopping "; The LCD MODULE showing for page menus and testing result, the LCD module of selecting is 320 * 240 not with the industrial liquid crystal display of character library; The step motor control module producing for permanent rotating speed, the stepping motor of selecting is the stepping motor with closed loop control, maximum speed of revolution is 3000rpm.
Microcontroller DSP is to impulse singla of actuator, driver drives stepping motor rotates, and then driving the wheel disc (being coupling on motor shaft) that tests the speed to rotate, the photoelectric encoder that motor carries collects speed signal and to actuator, realizes the closed loop control of whole stepping motor; In addition, the speed signal that photoelectric encoder collects carries out shaping and filtering through signal conditioning circuit, and gives DSP and process, the rotating speed of calculated step motor; Chopping machine has serial port function, belongs to miniature Chinese character printer, can carry out communication with PC; PC host computer procedure is constant speed control and the display panel of writing with LABVIEW, can control and the demonstration of result this perseverance rotating speed generation device.
The method that microprocessor control stepping motor produces constant rotational speed is that the PWM ripple that produces a corresponding frequencies by DSP comes the rotating speed of control step motor big or small, the value that changes period register just can change PWM wave frequency, thereby change the rotating speed of stepping motor, each control step motor reaches the process that all needs to have an acceleration before constant rotational speed, while stopping stepping motor, also should there is a moderating process, then stop stepping motor.When calibrating elevator governor tester, if while needing the standard revolving speed of generation to surpass the maximum speed of revolution of stepping motor, do not need extra acceleration equipment herein, but (be generally 1 by evenly stick a plurality of little magnet steel on the wheel disc that tests the speed, 2 or 4), on corresponding software, carry out corresponding set handling with it, test the speed wheel disc like this when rotating a circle, can produce 1, 2 or 4 impulse singlas, thereby can realize the multiplication (* 1 of rotating speed, * 2 or * 4), virtual like this maximum speed of revolution can reach 12000rpm, so after selecting rational range, just can detect rotating speed measuring instrument and measure high-revolving precision.
The automatic test job mode of permanent rotating speed generation device can realize the automatic operation of whole testing process, before starting, detection sets the needed a plurality of tachometer value sizes of one-shot measurement, and the rotating speed size setting is stored in the data space of DSP successively, after bringing into operation, content in the storage area that sequential search is corresponding successively, the PWM ripple control step motor that produces respective frequencies reaches corresponding rotating speed size, when the tachometer value that reaches setting being detected, operation a period of time, automatically start to inquire about and control the tachometer value of next setting, until produce the last tachometer value arranging.
As shown in Figure 2, its concrete operation is mainly as follows for software flow pattern of the present invention:
(1) dead work.First determine elevator governor tester type to be checked, when carrying out speed calibration, the engaged test of rotating speed if, needs fifth wheel to abut against testing the speed on wheel disc of permanent rotating speed generation device; If non-contact type, select suitable range to determine the number of the little magnet steel of selecting, on fifth wheel web edge, paste uniformly little magnet steel, and the hall probe of velocity limiter tester (photoelectric probe) is aimed to fifth wheel web along upper little magnet steel.
(2) working mode selection.This perseverance rotating speed generation device has two kinds of mode of operation: automatically test and manual test, before starting detection, select applicable mode of operation.
(3) start test.If select manual test mode of operation, the setting wheel disc diameter that tests the speed, after tachometer value size, little magnet steel number, start to detect, control step motor produces a constant rotational speed, makes stepping motor with this rotating speed uniform rotation, demonstration tachometer value now and corresponding linear velocity size on liquid crystal display, while producing next rotating speed size, need Reparametrization, if complete measurement, press " stopping " key, stepping motor is stopped.As select automatic test job mode, set the wheel diameter that tests the speed, in one-shot measurement, need a plurality of tachometer values sizes of producing and paste after little magnet steel number, control step motor produces set tachometer value size successively automatically, travel at the uniform speed after a period of time, automatically start the generation that next arranges rotating speed, produced successively after the rotating speed of all settings, the tachometer value that liquid crystal screen display all arranges and corresponding linear velocity size, and print this time whole testing results of measurement by chopping machine, stepping motor stops automatically, completes measurement.
(4) reset operation.After one-shot measurement completes, start measurement next time, press " returning " key, come back to step 2, start to measure next time.
Claims (4)
1. examine and determine the permanent rotating speed generation device that elevator governor tester is used, it is characterized by, apparatus structure is by stepping motor and controller thereof, digital signal processor (DSP), LCD MODULE (LCM), keypad, mini-printer, Personal Computer (PC) form.
2. permanent rotating speed generation device according to claim 1, it is characterized by, stepping motor wherein and controller thereof form a closed loop stepping motor system, and motor band photoelectric encoder, the wheel disc that tests the speed of step motor shaft coupling, wheel disc is made (can adsorb little magnet steel) by metallic material, and diameter is 100mm (or being its integral multiple), and thickness is 3～5mm.
3. permanent rotating speed generation device according to claim 1, it is characterized by, when the Hall element of calibrating elevator governor tester and velocity measurement sensitivity thereof, a plurality of little magnet steel can be set on the wheel disc that tests the speed, for simulation realize wheel disc rotating speed (unit: rev/min, be rpm) multiplication, multiplication number relevant to the number of little magnet steel.
4. permanent rotating speed generation device according to claim 1, it is characterized by, when examining and determine for elevator governor tester speed, can select two kinds of test method: manual test or automatically test, while selecting " test automatically " mode of operation, the rotating speed number that set the wheel diameter that tests the speed, need measure and size, little magnet steel number, startup is tested and is produced successively set rotating speed, and shows successively actual testing result; While selecting " manual test " mode of operation, the wheel diameter that tests the speed, rotating speed size, little magnet steel number are set, start and test and make rotating speed reach setting value, on LCM, show corresponding testing result and print.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410197876.XA CN103935862A (en) | 2014-05-09 | 2014-05-09 | Constant rotation speed generating device for detecting elevator speed limiter tester |
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| CN201410197876.XA CN103935862A (en) | 2014-05-09 | 2014-05-09 | Constant rotation speed generating device for detecting elevator speed limiter tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106419568A (en) * | 2016-11-30 | 2017-02-22 | 河北工业大学 | Remotely-controlled automatic tea-making machine |
| CN108584622A (en) * | 2018-07-05 | 2018-09-28 | 泉州迈得好智能科技有限公司 | A kind of apparatus for ride instead of walk speed control system |
| CN108803689A (en) * | 2018-07-05 | 2018-11-13 | 河南省计量科学研究院 | A kind of Doppler's physiology waveform die body skimulated motion accurate control method |
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| JPH11130353A (en) * | 1997-10-27 | 1999-05-18 | Toshiba Elevator Co Ltd | Operation test device for elevator speed governor |
| KR20040095403A (en) * | 2003-04-28 | 2004-11-15 | 송문기 | Governor Performance Test System |
| CN1828256A (en) * | 2006-03-31 | 2006-09-06 | 安徽中科智能高技术有限责任公司 | Portable elevator speed limiter testing device and its collecting signal processing method |
| JP4856476B2 (en) * | 2006-06-12 | 2012-01-18 | 三菱電機ビルテクノサービス株式会社 | Speed measuring device, Elevator governor operation test device |
| CN102331339A (en) * | 2011-06-11 | 2012-01-25 | 嘉兴市特种设备检测院 | Portable elevator speed limiter detection device and detection method for elevator speed limiter |
| JP2012158410A (en) * | 2011-01-31 | 2012-08-23 | Mitsubishi Electric Building Techno Service Co Ltd | Operation test apparatus |
| CN103332549A (en) * | 2013-07-10 | 2013-10-02 | 陈永煊 | Device and method for calibrating movement speed of elevator speed limiter |
| CN104677658A (en) * | 2014-12-16 | 2015-06-03 | 合肥迈利网络科技有限公司 | Portable elevator speed governor tester |
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2014
- 2014-05-09 CN CN201410197876.XA patent/CN103935862A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11130353A (en) * | 1997-10-27 | 1999-05-18 | Toshiba Elevator Co Ltd | Operation test device for elevator speed governor |
| KR20040095403A (en) * | 2003-04-28 | 2004-11-15 | 송문기 | Governor Performance Test System |
| CN1828256A (en) * | 2006-03-31 | 2006-09-06 | 安徽中科智能高技术有限责任公司 | Portable elevator speed limiter testing device and its collecting signal processing method |
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| CN103332549A (en) * | 2013-07-10 | 2013-10-02 | 陈永煊 | Device and method for calibrating movement speed of elevator speed limiter |
| CN104677658A (en) * | 2014-12-16 | 2015-06-03 | 合肥迈利网络科技有限公司 | Portable elevator speed governor tester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106419568A (en) * | 2016-11-30 | 2017-02-22 | 河北工业大学 | Remotely-controlled automatic tea-making machine |
| CN108584622A (en) * | 2018-07-05 | 2018-09-28 | 泉州迈得好智能科技有限公司 | A kind of apparatus for ride instead of walk speed control system |
| CN108803689A (en) * | 2018-07-05 | 2018-11-13 | 河南省计量科学研究院 | A kind of Doppler's physiology waveform die body skimulated motion accurate control method |
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Application publication date: 20140723 |