CN106483318A - A kind of proximity switch tachymeter - Google Patents
A kind of proximity switch tachymeter Download PDFInfo
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- CN106483318A CN106483318A CN201611171347.8A CN201611171347A CN106483318A CN 106483318 A CN106483318 A CN 106483318A CN 201611171347 A CN201611171347 A CN 201611171347A CN 106483318 A CN106483318 A CN 106483318A
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- proximity switch
- close
- lasso
- motor
- speed
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 4
- 239000000700 radioactive tracer Substances 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a kind of proximity switch tachymeter, lasso is close to including being set on the output shaft of tested motor, is close to lasso and is provided with several equally distributed breach；Proximity switch is provided with motor side；The distance between lasso outmost turns and proximity switch are close to for distance of reaction, proximity switch can not be sensed to breach to being close to lasso outmost turns and can sense, the pulse signal for representing its rotating speed is generated with this rotation for being close to lasso, pulse signal according to reading in the proximity switch unit interval calculates the mechanical separator speed of output end of reducer flange, the mechanical separator speed at quick, convenient, accurate detection motor reducer output flange can be realized, and flange end output is to the linear velocity of connection roller-way, it is that control system offers precise data parameter.
Description
Technical field
The invention belongs to plant equipment in-site measurement technical field, is related to a kind of proximity switch tachymeter.
Background technology
Testing the speed in detection in motor reducer output (input), is typically tracked meter with the form of encoder at present
Calculate, but as reductor belongs to nonstandard product, the speed reducing ratio of the reductor of onsite application often had differences with Theoretical Design,
This results in and generates certain impact to the device for needing precise speed control, reduces the control accuracy of equipment, when serious,
The normal operation of impact equipment, reduces the operating rate of equipment, and encoder compares to outside environmental requirement in use
Height, especially in electrical design than, in larger system, it sometimes appear that electric signal decays and disturbs, and then affecting measurement number
According to accuracy and reliability.
Content of the invention
Present invention solves the problem in that providing a kind of proximity switch tachymeter, can provide precisely for electric control system
Mechanical speed performance parameter.
The present invention is achieved through the following technical solutions：
A kind of proximity switch tachymeter, is close to lasso including being set on the output shaft of tested motor, is close on lasso
It is provided with several equally distributed breach；Proximity switch is provided with motor side；It is close between lasso outmost turns and proximity switch
Distance be distance of reaction, proximity switch can not be sensed to breach to being close to lasso outmost turns and can sense, with being close to lasso
Rotation generate represent its rotating speed pulse signal.
The described breach for being close to lasso is formed for outmost turns portion concave, or be close to lasso outmost turns be breach week
The boss on side.
Described is close to lasso by sunk screw on the output flange of tested motor, and tested motor is the electricity that slows down
Machine or variable-frequency motor, the Motor drive that can be set by rotating speed.
Described proximity switch is disposed proximate on switch bracket, and proximity switch support is fixed on motor base and is located at
The side of the output flange of tested motor.
After tested motor rotarily drives and is close to lasso rotation, lasso outermost is close to when proximity switch, is close to and opens
One signal of start recording is closed, when proximity switch, tracer signal is completed breach, form pulse recording.
Described being close on lasso is disposed with n breach, when proximity switch records n pulse, represents tested motor output
The flange rotary at end one week.
According to the number of pulses in proximity switch institute record unit time, the rotating speed for being close to lasso, indirect gain quilt is obtained
Measured motor or output speed, the angular speed of mechanism that driven of tested motor or linear velocity, be that the control of tested motor is provided
Data parameters.
Described tested motor is connected with motor also by logic controller PLC, frequency converter, and proximity switch passes through
Cable is connected with the digital quantity input channel of logic controller PLC, and the pulse signal that proximity switch sends is passed through digital quantity by PLC
Input channel is gathered and is recorded；
Logic controller PLC obtains the actual speed of tested motor output end according to the pulse signal computing of input, will survey
Amount result feeds back to frequency converter, and speed difference of the frequency converter according to which between setting speed adjusts the rotating speed of driving motor, real
The velocity close-loop control of existing tested motor.
The sampling time of described proximity switch is t, and the umber of pulse that recorded is Q, the pulse that proximity switch rotates a circle
Number is q, and the speed reducing ratio of tested motor is i, then actual speed V of tested motor is：
V=[(Q/q) × i]/t.
Compared with prior art, the present invention has following beneficial technique effect：
The proximity switch tachymeter that the present invention is provided, is close to lasso and proximity switch by being fixed in output flange
Cooperation, the mechanical separator speed of output end of reducer flange is calculated according to the pulse signal read in the proximity switch unit interval,
The mechanical separator speed at quick, convenient, accurate detection motor reducer output flange can be realized, and flange end output is to even
The linear velocity of roller-way (or mechanism) is connect, is that control system offers precise data parameter.So Production requirement not only can be met,
And convenient and reliable, if the installation form of proximity switch to be designed to the structure of packaged type or hand-held, then will be permissible
Realize tracking, detection and the monitoring of some groups of motor reducer outputs.
For the measurement of the defeated end speed of motor reducer class in plant equipment, it is that control system provides accurate reliable data
Parameter.Especially in some groups of equipment simultaneously need in the case that dynamic (accurate) controls and ensures that output speed is consistent, in conjunction with
The feature of variable-frequency motor, can form dynamic tracking and closed-loop control, it is ensured that output speed is steady, and then steady production flow process is simultaneously
Improve production product quality；Encoder is avoided simultaneously higher to outside environmental requirement in use, especially in electricity
In the big system of gas design comparison, it sometimes appear that the shortcoming of electric signal decay and interference；And proximity switch has work
The features such as reliability, life-span length, low in energy consumption, repetitive positioning accuracy are high, operating frequency is high and adapt to severe working environment, need not
Special acquisition module, greatly reduces electrical control cost so that on-site maintenance is convenient, improves the operation of motor operation
Rate, reduces the work workload of surfaceman.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the close-up schematic view of the present invention；
Fig. 3 is the structural representation for being close to lasso；
Fig. 4 is control speed closed loop schematic diagram；
Fig. 5 is pulse signal schematic diagram；
Fig. 6 is the control flow chart of the present invention.
Wherein, 1 is motor reducer, and 2 for being close to lasso, and 3 is lasso fixing screws, and 4 is reductor output flange, and 5 are
Switch mounting bracket, 6 is proximity switch.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, described be explanation of the invention and
It is not to limit.
Referring to Fig. 1～Fig. 5, a kind of proximity switch tachymeter, including the close set being set on the output shaft of tested motor
Circle 2, is close to lasso 2 and is provided with several equally distributed breach；Proximity switch 6 is provided with motor side；It is close to 2 outermost of lasso
Circle is distance of reaction with the distance between proximity switch 6, proximity switch 6 pairs be close to 2 outmost turns of lasso can sense and to breach
Can not sense, the pulse signal for representing its rotating speed is generated with this rotation for being close to lasso 2.
Specifically, the described breach for being close to lasso 2 is formed for outmost turns portion concave, or is close to the outermost of lasso 2
Enclose the boss for breach periphery.
Further, lasso 2 is close to by sunk screw 3 on the output flange 4 of tested motor, tested motor is
Reducing motor or variable-frequency motor, the Motor drive that can be set by rotating speed.
Described proximity switch 6 is disposed proximate on switch bracket 5, and proximity switch support 5 is fixed on motor base simultaneously
It is located at the side of the output flange 4 of tested motor.
After tested motor rotarily drives and is close to the rotation of lasso 2,2 outermost of lasso is close to when proximity switch 6, is close to
6 start recording, one signal is switched, when proximity switch 6, tracer signal is completed breach, form pulse recording.
Described being close on lasso 2 is disposed with n breach, when proximity switch 6 records n pulse, represents that tested motor is defeated
Go out the flange rotary one week at end.
According to the number of pulses in 6 record unit times of proximity switch, the rotating speed for being close to lasso 2, indirect gain is obtained
Tested motor or output speed, the angular speed of mechanism that driven of tested motor or linear velocity, be that the control of tested motor is carried
For data parameters.
Described tested motor is connected with motor also by logic controller PLC, frequency converter, and proximity switch 6 leads to
Cross cable to be connected with the digital quantity input channel of logic controller PLC, the pulse signal that proximity switch 6 sends is by PLC by number
Word amount input channel is gathered and is recorded；
Logic controller PLC obtains the actual speed of tested motor output end according to the pulse signal computing of input, will survey
Amount result feeds back to frequency converter, and speed difference of the frequency converter according to which between setting speed adjusts the rotating speed of driving motor, real
The velocity close-loop control of existing tested motor.
The sampling time of described proximity switch 6 is t, and the umber of pulse that recorded is Q, the arteries and veins that proximity switch 6 rotates a circle
Number is rushed for q, the speed reducing ratio of tested motor is i, then actual speed V of tested motor is：
V=[(Q/q) × i]/t.
Specific embodiment is given below.
Referring to Fig. 1, Fig. 2, a kind of proximity switch tachymeter, mainly by proximity switch, it is close to lasso, variable-frequency motor, frequency conversion
The part such as device, logic controller PLC constitutes.Lasso will be close on the flange of output end of reducer, be close on lasso and set
A number of breach is counted, lasso is fixed on the flange of output end of reducer by countersunk bolts.Proximity switch mounting arrangements
In side, when be close to lasso with output end of reducer flange rotary when, when each breach is by proximity switch, is close to and opens
Close one pulse of record, it is assumed that be close to 8 breach of arrangement on lasso, then when proximity switch records 8 pulses, reductor is exported
The flange rotary at end one week.
Before testing, lasso 2 will be close to by sunk screw 3 on reductor output flange 4；By proximity switch
Support 5 be fixed on speed reducer base and reductor flange side；Adjust 6 sensitive surface of proximity switch and be close to lasso outmost turns
Apart from L, so that proximity switch 6 is sensed at the boss for being close to lasso 2 (Fig. 3) and produce signal, be close to 2 breach of lasso
Place's proximity switch 6 can not sense and produce signal.
Rotate under the drive of reductor output flange 4 when motor drives reductor lasso 2 to be close to when rotating, be close to lasso
When proximity switch 6, proximity switch produces one signal of record to a upper boss, and breach when proximity switch, believe by record
Number complete, form pulse (signal) record as shown in Figure 5.According to the pulse in proximity switch institute record unit time
(signal) quantity, calculates, by computer program, the roller driven by the output speed of reductor and reductor output flange
The angular speed of (or mechanism) and linear velocity, are that control system offers precise data parameter.
Referring to Fig. 3, in the design of lasso is close to, D1 is the internal diameter for being close to lasso 2, and the size of D2, D3 is then according to close
The type selecting of switch determines.Require of course for the detection for adapting to different accuracy, be close to the breach that lasso 2 is designed to varying number.
For example：Assume to be close to lasso (Fig. 3) n breach of upper arrangement, then when proximity switch records n pulse, represent reductor output
The flange rotary at end one week.
One Speed closed-link system (referring to Fig. 4) is constituted by proximity switch speed measuring device.Logic controller PLC provides electricity
The machine speed of service, the rotation of Frequency Converter Control motor cause proximity switch and are close to lasso that relative motion occurs, by high-frequency
Digital data acquisition passage, the pulse collection that proximity switch is sent in logic controller, by recorded in the unit interval
Umber of pulse, calculates the actual speed of motor, if the sampling time is t (min), the umber of pulse that recorded is Q, output end of reducer
The flange rotary umber of pulse of a week be q, the speed reducing ratio of reductor is i, then measure motor actual speed V (r/min) of gained
For：
V=[(Q/q) × i]/t
PLC is compared by the actual speed value of feedback obtained by measurement and speed setting value, by revised setting
Velocity amplitude is transferred to frequency converter, realizes closed loop speed control system (referring to Fig. 6).
Example given above is to realize the present invention preferably example, the invention is not restricted to above-described embodiment.This area
Technical staff made according to the technical characteristic of technical solution of the present invention any nonessential interpolation, replacement, belong to this
The protection domain of invention.
Claims (9)
1. a kind of proximity switch tachymeter, it is characterised in that be close to lasso on the output shaft of tested motor including being set in
(2), it is close to lasso (2) and is provided with several equally distributed breach；Proximity switch (6) is provided with motor side；It is close to lasso
(2) the distance between outmost turns and proximity switch (6) are distance of reaction, and proximity switch (6) can to being close to lasso (2) outmost turns
Sensing and breach can not being sensed, the pulse signal for representing its rotating speed is generated with the rotation for being close to lasso (2).
2. proximity switch tachymeter as claimed in claim 1, it is characterised in that the described breach for being close to lasso (2) is for most
Outer perimeter section is recessed to be formed, or is close to the boss of the outmost turns for breach periphery of lasso (2).
3. proximity switch tachymeter as claimed in claim 1, it is characterised in that be close to lasso (2) and pacified by sunk screw (3)
It is mounted on the output flange (4) of tested motor, tested motor is reducing motor or variable-frequency motor, the motor that can be set by rotating speed drives
Dynamic.
4. proximity switch tachymeter as claimed in claim 1, it is characterised in that described proximity switch (6) is disposed proximate to
On switch bracket (5), proximity switch support (5) is fixed on motor base and is located at the side of the output flange (4) of tested motor
Face.
5. proximity switch tachymeter as claimed in claim 1, it is characterised in that be close to lasso when tested motor rotarily drives
(2), after rotating, lasso (2) outermost is close to when proximity switch (6), one signal of proximity switch (6) start recording, breach
When proximity switch (6), tracer signal is completed, and forms pulse recording.
6. proximity switch tachymeter as claimed in claim 5, it is characterised in that described being close on lasso (2) is disposed with n
Breach, when proximity switch (6) records n pulse, the flange rotary of expression tested motor output end one week.
7. the proximity switch tachymeter as described in claim 1 or 5, it is characterised in that according to the recorded unit of proximity switch (6)
Number of pulses in time, obtains and is close to the rotating speed of lasso (2), indirect gain tested motor or output speed, tested motor
The angular speed of the mechanism for being driven or linear velocity, are that the control of tested motor provides data parameters.
8. the proximity switch tachymeter as described in claim 1 or 5, it is characterised in that described tested motor is also by logic
Controller PLC, frequency converter are connected with motor, and proximity switch (6) is defeated with the digital quantity of logic controller PLC by cable
Enter passage connection, the pulse signal that proximity switch (6) sends is gathered by digital quantity input channel and recorded by PLC；
Logic controller PLC obtains the actual speed of tested motor output end according to the pulse signal computing of input, by measurement knot
Fruit feeds back to frequency converter, speed difference of the frequency converter according to which between setting speed, adjusts the rotating speed of driving motor, realizes quilt
The velocity close-loop control of measured motor.
9. proximity switch tachymeter as claimed in claim 8, it is characterised in that the sampling time of described proximity switch (6)
For t, the umber of pulse that recorded is Q, and the umber of pulse that proximity switch (6) rotates a circle is q, and the speed reducing ratio of tested motor is i, then by
Actual speed V of measured motor is：
V=[(Q/q) × i]/t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171347.8A CN106483318A (en) | 2016-12-17 | 2016-12-17 | A kind of proximity switch tachymeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171347.8A CN106483318A (en) | 2016-12-17 | 2016-12-17 | A kind of proximity switch tachymeter |
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| Publication Number | Publication Date |
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| CN106483318A true CN106483318A (en) | 2017-03-08 |
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| CN201611171347.8A Pending CN106483318A (en) | 2016-12-17 | 2016-12-17 | A kind of proximity switch tachymeter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732375A (en) * | 2018-04-20 | 2018-11-02 | 浙江师范大学 | A kind of snowplough engine speed detection device and its detection method |
| CN109445372A (en) * | 2018-10-29 | 2019-03-08 | 红塔烟草(集团)有限责任公司 | A kind of motor rotation real-time monitoring device based on PLC |
| CN110501516A (en) * | 2018-05-16 | 2019-11-26 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Combination velocity-measuring system and method for ultrahigh speed linear motor |
| CN112067838A (en) * | 2020-08-20 | 2020-12-11 | 上海汉虹精密机械有限公司 | Motor rotation angle and speed measuring device and method |
| CN112763742A (en) * | 2020-12-24 | 2021-05-07 | 北京通用航空江西直升机有限公司 | Rotor speed sensor mounting structure |
| CN112763746A (en) * | 2021-01-14 | 2021-05-07 | 山西太钢不锈钢股份有限公司 | Method for realizing multifunctional speed measurement of rotating mechanism based on logic controller |
| CN115445437A (en) * | 2022-08-17 | 2022-12-09 | 山鹰国际控股股份公司 | SDI automatic sampling control method |
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| CN201926668U (en) * | 2011-01-07 | 2011-08-10 | 新疆八一钢铁股份有限公司 | Pulse rotating speed detecting device |
| CN204228735U (en) * | 2014-12-09 | 2015-03-25 | 唐山三友集团兴达化纤有限公司 | Measure the device of motor speed |
| CN206292247U (en) * | 2016-12-17 | 2017-06-30 | 中国重型机械研究院股份公司 | A kind of proximity switch tachymeter |
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| CN101701964A (en) * | 2009-11-18 | 2010-05-05 | 浙江省特种设备检验研究院 | Universal device for measuring position and speed of overhead and gantry crane |
| CN201926668U (en) * | 2011-01-07 | 2011-08-10 | 新疆八一钢铁股份有限公司 | Pulse rotating speed detecting device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732375A (en) * | 2018-04-20 | 2018-11-02 | 浙江师范大学 | A kind of snowplough engine speed detection device and its detection method |
| CN108732375B (en) * | 2018-04-20 | 2023-07-14 | 浙江师范大学 | Device and method for detecting engine rotation speed of snowplow |
| CN110501516A (en) * | 2018-05-16 | 2019-11-26 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Combination velocity-measuring system and method for ultrahigh speed linear motor |
| CN110501516B (en) * | 2018-05-16 | 2022-02-08 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Combined speed measuring system and method for ultra-high-speed linear motor |
| CN109445372A (en) * | 2018-10-29 | 2019-03-08 | 红塔烟草(集团)有限责任公司 | A kind of motor rotation real-time monitoring device based on PLC |
| CN112067838A (en) * | 2020-08-20 | 2020-12-11 | 上海汉虹精密机械有限公司 | Motor rotation angle and speed measuring device and method |
| CN112763742A (en) * | 2020-12-24 | 2021-05-07 | 北京通用航空江西直升机有限公司 | Rotor speed sensor mounting structure |
| CN112763746A (en) * | 2021-01-14 | 2021-05-07 | 山西太钢不锈钢股份有限公司 | Method for realizing multifunctional speed measurement of rotating mechanism based on logic controller |
| CN115445437A (en) * | 2022-08-17 | 2022-12-09 | 山鹰国际控股股份公司 | SDI automatic sampling control method |
| CN115445437B (en) * | 2022-08-17 | 2023-10-03 | 山鹰国际控股股份公司 | SDI automatic sampling control method |
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