CN102213602A - Motor encoder detecting device with multiple power supplies - Google Patents
Motor encoder detecting device with multiple power supplies Download PDFInfo
- Publication number
- CN102213602A CN102213602A CN 201110146535 CN201110146535A CN102213602A CN 102213602 A CN102213602 A CN 102213602A CN 201110146535 CN201110146535 CN 201110146535 CN 201110146535 A CN201110146535 A CN 201110146535A CN 102213602 A CN102213602 A CN 102213602A
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- door
- pin
- diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Optical Transform (AREA)
Abstract
The invention relates to a motor encoder detecting device with multiple power supplies. The detecting device comprises a motor controller, a local power supply, a power supply option switch, a signal input circuit, a signal detecting circuit and an acousto-optic indicating circuit. After the detecting device provided by the invention analyzes the phase position and phase sequence of motor encoder signals, the working state of the motor encoder is indicated in an acousto-optic mode. Compared with the existing detecting device for the motor encoder, the detecting device provided by the invention has the advantages of wide application range, high accuracy, low cost and simple operation.
Description
Technical field
The invention belongs to the automatic control technology field, be specifically related to a kind of many electrical convertors and generators scrambler pick-up unit.
Background technology
Motor encoder is as the higher dynamo-electric conversion sensor of a kind of precision, have accurate, reliable, characteristics at a high speed, whether the umber of pulse of its revolution output conforms to nominal value, directly influence the control accuracy of motor closed-loop control system, but through problems such as high vibration in long running, external interference, the long-distance transport way or protection deficiencies, the phenomenon of output pulse misalignment or phase shortage can take place, thereby causes vehicle operating to be lost efficacy; In addition, at present in the fork truck making-up shop, the motor encoder quality only after fork truck assembling is rolled off the production line, could find during the operation debugging, and then dismounting and change done over again, and has a strong impact on operating efficiency.And the maintenance service that the later stage is located the user, the encoder fault maintenance is judged with maintenance mans' experience.So how under the limited condition of hardware facility, electric motor car low-voltage alternating-current motor scrambler is judged really and accurately, is become a great problem of electri forklift industry; Therefore judge rapidly, accurately that whether scrambler damages is electri forklift production and an urgent demand of using on-the-spot proposition.
At present, existing industrial motor scrambler intelligent tester must external 220V AC power just can carry out work, and the electric moter voltage grade is 48V or 80V low-tension supply in the electri forklift industry; And this intelligent detecting instrument do not allow to use under the heavier situation of steam and dust, because of this instrument belongs to friable product, forbids collision and impacting; Forbid being exposed to the sun in the sun instrument, otherwise damage liquid crystal display easily; The running program complexity, very high to operating personnel's requirement, to avoid damaging the situation of scrambler because of maloperation.Based on the restriction of above condition, this industrial motor scrambler intelligent detecting instrument is not suitable for the check of electri forklift motor encoder.
Chinese patent has been announced the pick-up unit (Zhang Zailei that is used for the alternating current generator scrambler; Wu Xinli; Ge Liyin; Wang Ying. be used for the pick-up unit of alternating current generator scrambler, application number: ZL 201020625088.3, the applying date: 2010.11.26).This device becomes and detects the specialized equipment of electri forklift with the alternating current generator scrambler, by the measuring voltage value scrambler voltage, phase signal is analyzed, for the detection of scrambler provides a kind of simple effective method.But this pick-up unit that is used for the alternating current generator scrambler also has the following disadvantages: (1) can't realize online detection owing to adopt the single power supply testing circuit; (2) judge the scrambler duty by the detection voltage of voltage table, reduced portability and operability; And the trueness error double influence of examined personnel's reading error and instrument, be difficult to guarantee the precision that detects; (3) coupling arrangement complexity, setup time is long, influences detection efficiency.
Summary of the invention
The objective of the invention is to solve the key technology problems that has existed in having applied for a patent, to provide a kind of range of application wider, precision is higher, definite functions, low-cost motor encoder testing circuit simple to operate.
The improved gordian technique of the present invention is that many power supplys are selected, intuitive display, and pulsewidth detects more accurate, to improve accuracy of detection, to widen usable range.
The technical solution used in the present invention is: a kind of many electrical convertors and generators scrambler pick-up unit comprises local power supply 3, power selection switch 4, signal input circuit 5, signal deteching circuit 6, acousto-optic indicating circuit 7.The input voltage of power selection switch 4 is come from electric machine controller 1, and another road is from local power supply 3; The output voltage of power selection switch 4 is connected to motor encoder 2, signal input circuit 5 and signal deteching circuit 6 and acousto-optic indicating circuit 7; The output signal of motor encoder 2 is transported to testing circuit 6 after signal input circuit 5 arrangements, its testing result is by 7 indications of acousto-optic indicating circuit.
The good effect that the present invention is useful is: compare with prior motor scrambler pick-up unit, range of application of the present invention is wider, precision is higher, cost is low, simple to operate.
Description of drawings
Fig. 1 is a detection circuitry block diagram of the present invention.
Fig. 2 is the concrete a certain representative instance detection circuitry schematic diagram of implementing of the present invention.
Embodiment
The present invention will be further described below in conjunction with embodiment.
As shown in Figure 1 and Figure 2:
A kind of many electrical convertors and generators scrambler pick-up unit, comprise local power supply 3, power selection switch 4, signal input circuit 5, signal deteching circuit 6, acousto-optic indicating circuit 7, the input voltage of power selection switch 4 is come from electric machine controller 1, and another road is from local power supply 3; The output voltage of power selection switch 4 is connected to motor encoder 2, signal input circuit 5 and signal deteching circuit 6 and acousto-optic indicating circuit 7; The output signal of motor encoder 2 is transported to testing circuit 6 after signal input circuit 5 arrangements, its testing result is by 7 indications of acousto-optic indicating circuit.
Power selection switch 4 adopts triac device SW1, and wherein: the SW1-11 of SW1-1, SW1-12, three connection terminals of SW1-13 are connected with " A phase " end of resistance R 3 " A " end, motor encoder 2, " A phase " end of electric machine controller 1 respectively; The SW1-21 of SW1-2, SW1-22, three connection terminals of SW1-23 are held with " B mutually " of resistance R 4 " B " end, motor encoder 2 respectively, and " B phase " end of electric machine controller 1 connects; The SW1-31 of SW1-3, SW1-32, three connection terminals of SW1-33 are connected with " V+ " end of motor encoder 2, the positive pole of local power supply 3, " VCC " end of electric machine controller 1 respectively.
Testing circuit 6 is by with door U1C, constitute with door a U1D, resistance R 3, resistance R 4, capacitor C 1, capacitor C 2, diode D1, diode D2; Wherein with door U1C the 8th pin be connected with door U1B the 4th pin; With door U1D the 13rd pin be connected with the 3rd pin of door U1A; Resistance R 5, capacitor C 1, diode D1 constitute differential and negative-going pulse amplitude limiter circuit, the input signal of this circuit from door U1A the 3rd pin, the output signal of this circuit is connected to the 9th pin with door U1C; Resistance R 6, capacitor C 2, diode D2 also constitute differential and negative-going pulse amplitude limiter circuit, the input signal of this circuit from door U1B the 4th pin, the output signal of this circuit is connected to and door U1D the 12nd pin.
Acousto-optic indicating circuit 7 is made of resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 11, triode T1, triode T2, diode D3, diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7, hummer B1; Triode T1 will be from after amplifying with door U1C the 10th pin signal, and driven for emitting lights diode D6 and hummer B1 realize the acousto-optic indication; After triode T2 will amplify from the signal with door U1D the 11st pin, driven for emitting lights diode D7 and hummer B1 realized the acousto-optic indication.
Utilize this device detection method:
Detection is divided into online detection and offline inspection, when the SW1-31 of power selection switch and SW1-33 connect, uses local power supply, realizes online detection; When the SW1-31 of power selection switch and SW1-32 connect, use the 9V battery as power supply, realize offline inspection; No matter online detection or offline inspection, the process of utilizing this device to detect is identical.
Behind the power connection, light emitting diode D5 indication power supply power supply state, the bright expression power supply of lamp inserts successfully, and detection system can operate as normal.Drive the alternating current generator output shaft and make its rotation, pick-up unit is by analyzing A, B phase output signal, judges the motor encoder phase sequence, whether phase place is normal, and then determines whether this scrambler can operate as normal.
The A of scrambler output, B phase signals by after isolating with gating element U1A and U1B, enter by C1﹠amp respectively; R3 and C2﹠amp; A channel and B passage differentiating circuit that R4 forms, after producing spiking, obtaining unidirectional pulse by two diodes of D2 and D3 respectively outputs among two other and gating element U1C and the U1D, its output data compares computing with the output data of U1A and U1B respectively, process current-limiting resistance R5 and R6 are input to the base stage of triode T1 and T2 respectively then, result according to comparison operation, if gating element U1C is output as height, then T1 conducting, light emitting diode D9 lights flicker, simultaneously, because triode T1 conducting, diode D4 forward conduction, hummer gets electric work.The output of gating element U1D in like manner.
1, normal operating conditions: when the counterclockwise uniform rotation of motor shaft, triode T1 is bright, and hummer B1 sends buzzing; If when the clockwise uniform rotation of motor shaft, triode T1 is bright, hummer B1 sends buzzing (annotate: hummer is selected for use according to actual conditions as option means).
2, abnormal operating state:
1) after the motor shaft uniform rotation, regardless of direction, triode T1, T2 all do not work, and hummer B1 does not ring.Cause this situation that two kinds of possibilities are arranged: U/V/W phase sequence and A, B phase signals phase sequence do not match, perhaps the equal mutually phase shortage of scrambler A, B.
2) uniform rotation motor shaft, when certain direction, corresponding diode does not work, and hummer does not ring, and when rotating in an opposite direction, corresponding led lighting, hummer B1 ring, and can be judged as certain phase signals phase shortage.
The output abnormality no matter which kind of reason causes can judge that all scrambler damages, and needs to change.
Claims (6)
1. the pick-up unit of electrical convertors and generators scrambler more than a kind, comprise local power supply (3), power selection switch (4), signal input circuit (5), signal deteching circuit (6), acousto-optic indicating circuit (7), it is characterized in that: the input voltage of power selection switch (4) is come from electric machine controller (1), and another road is from local power supply (3); The output voltage of power selection switch (4) is connected to motor encoder (2), signal input circuit (5) and signal deteching circuit (6) and acousto-optic indicating circuit (7); The output signal of motor encoder (2) is transported to testing circuit (6) after signal input circuit (5) arrangement, its testing result is indicated by acousto-optic indicating circuit (7).
2. a kind of many electrical convertors and generators scrambler pick-up unit according to claim 1 is characterized in that: local power supply (3) adopts the Voltaic battery group.
3. a kind of many electrical convertors and generators scrambler pick-up unit according to claim 1, it is characterized in that: power selection switch (4) adopts triac device SW1, and wherein: the SW1-11 of SW1-1, SW1-12, three connection terminals of SW1-13 are connected with " A phase " end of resistance R 3 " A " end, motor encoder (2), " A phase " end of electric machine controller (1) respectively; The SW1-21 of SW1-2, SW1-22, three connection terminals of SW1-23 are held with " B mutually " of resistance R 4 " B " end, motor encoder (2) respectively, and " B phase " end of electric machine controller (1) connects; The SW1-31 of SW1-3, SW1-32, three connection terminals of SW1-33 are connected with " V+ " end of motor encoder (2), the positive pole of local power supply (3), " VCC " end of electric machine controller (1) respectively.
4. a kind of many electrical convertors and generators scrambler pick-up unit according to claim 1, it is characterized in that: signal input circuit (5) is by resistance R 1, resistance R 2, resistance R 3, resistance R 4, with a door U1A, constitute with a door U1B, wherein: U1A the 1st pin, the 2nd pin and resistance R 3 A end are connected R3 other end ground connection; Be connected resistance R 4 other end ground connection with door U1B the 5th pin, the 6th pin and resistance R 4 B end.
5. a kind of many electrical convertors and generators scrambler pick-up unit according to claim 1 is characterized in that: testing circuit (6) is by with door U1C, constitute with door a U1D, resistance R 5, resistance R 6, capacitor C 1, capacitor C 2, diode D1, diode D2; Wherein with door U1C the 8th pin be connected with door U1B the 4th pin; With door U1D the 13rd pin be connected with the 3rd pin of door U1A; Resistance R 5, capacitor C 1, diode D1 constitute differential and negative-going pulse amplitude limiter circuit, the input signal of this circuit from door U1A the 3rd pin, the output signal of this circuit is connected to the 9th pin with door U1C; Resistance R 6, capacitor C 2, diode D2 also constitute differential and negative-going pulse amplitude limiter circuit, the input signal of this circuit from door U1B the 4th pin, the output signal of this circuit is connected to and door U1D the 12nd pin.
6. a kind of many electrical convertors and generators scrambler pick-up unit according to claim 1, it is characterized in that: acousto-optic indicating circuit (7) is made of resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 11, triode T1, triode T2, diode D3, diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7, hummer B1; Triode T1 will be from after amplifying with door U1C the 10th pin signal, and driven for emitting lights diode D6 and hummer B1 realize the acousto-optic indication; After triode T2 will amplify from the signal with door U1D the 11st pin, driven for emitting lights diode D7 and hummer B1 realized the acousto-optic indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110146535 CN102213602B (en) | 2011-06-02 | 2011-06-02 | Motor encoder detecting device with multiple power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110146535 CN102213602B (en) | 2011-06-02 | 2011-06-02 | Motor encoder detecting device with multiple power supplies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102213602A true CN102213602A (en) | 2011-10-12 |
| CN102213602B CN102213602B (en) | 2013-05-08 |
Family
ID=44745003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110146535 Active CN102213602B (en) | 2011-06-02 | 2011-06-02 | Motor encoder detecting device with multiple power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102213602B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4843314A (en) * | 1988-04-25 | 1989-06-27 | Craig Barnaby | Testing unit for rotary shaft encoders |
| EP1562025A2 (en) * | 2004-02-03 | 2005-08-10 | Fanuc Ltd | Self-diagnosing system for an angle encoder |
| CN101762295A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | On-line detecting device for digital encoder |
| CN201731895U (en) * | 2010-06-22 | 2011-02-02 | 上海理工大学 | Coder testing device based on virtual instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209931Y (en) * | 2008-05-08 | 2009-03-18 | 周国南 | Air humidifier |
-
2011
- 2011-06-02 CN CN 201110146535 patent/CN102213602B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4843314A (en) * | 1988-04-25 | 1989-06-27 | Craig Barnaby | Testing unit for rotary shaft encoders |
| EP1562025A2 (en) * | 2004-02-03 | 2005-08-10 | Fanuc Ltd | Self-diagnosing system for an angle encoder |
| CN101762295A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | On-line detecting device for digital encoder |
| CN201731895U (en) * | 2010-06-22 | 2011-02-02 | 上海理工大学 | Coder testing device based on virtual instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102213602B (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203025271U (en) | Portable power unit tester | |
| CN202929167U (en) | Testing device for diagnosing and testing circuit board in electric drive device | |
| CN103064001A (en) | Detecting method and detecting device of driving board of inverter compressor | |
| CN207976563U (en) | A kind of AC servo motor opening machine system test device of turntable switching load | |
| CN202109931U (en) | Multi-power-supply motor encoder detecting device | |
| CN205067701U (en) | Drive motor of an electric vehicle's testing arrangement | |
| CN102213602B (en) | Motor encoder detecting device with multiple power supplies | |
| CN2884219Y (en) | On-line testing device for faults of three-phase full control bridge of crystal valve | |
| CN201509075U (en) | Labor frequency mutually ordered survey meter and relay | |
| CN103792938A (en) | Complete machine inspection platform for controller of electric car | |
| CN201886091U (en) | Tester of frequency converter | |
| CN104569629A (en) | Phase sequence tester of low-voltage cables | |
| CN110658802B (en) | Intelligent detection equipment for core trigger circuit board of subway train traction system | |
| CN204904020U (en) | Increase portable multi -functional hander of journey utensils | |
| CN208044026U (en) | A kind of DC/AC drive modules dynamic accelerated ageing test device | |
| US8565960B2 (en) | Modular system for serviceable vehicle components | |
| CN202794460U (en) | Hall proximity switch failure detector | |
| CN204286492U (en) | Automobile combination meter device for fast detecting | |
| CN205656248U (en) | A test equipment for single -disk of computer based interlocking IO portion | |
| CN105259363A (en) | Band conveyor stalling detection apparatus | |
| CN203773349U (en) | Whole machine test platform used for electric automobile controller | |
| CN105974238B (en) | Gasoline engine inverter automatic test approach and system | |
| CN203705608U (en) | High voltage breaker energy saving motor time tester | |
| CN104345242A (en) | Die-cutting machine electric cabinet test device | |
| CN204374313U (en) | A kind of low-voltage cable phase sequence measurer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |