CN108344942A - A kind of mixing plant rotating speed and current sensing means - Google Patents
A kind of mixing plant rotating speed and current sensing means Download PDFInfo
- Publication number
- CN108344942A CN108344942A CN201711214598.4A CN201711214598A CN108344942A CN 108344942 A CN108344942 A CN 108344942A CN 201711214598 A CN201711214598 A CN 201711214598A CN 108344942 A CN108344942 A CN 108344942A
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- plc
- motor
- frequency converter
- detection device
- speed
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- 238000001514 detection method Methods 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005355 Hall effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of mixing plant rotating speed and current sensing means, the detection device includes PLC, frequency converter, display, current sensor and speed probe, the display and frequency converter are connect with the PLC, the frequency converter is connect with the power input of the motor in mixing plant, the PLC is connect by speed probe with the output end of the motor, and the PLC is connect by current sensor with the power input of the motor；The frequency converter is used to receive the control instruction for being used to control the motor speed from the PLC, and drives the motor to rotate according to the control instruction.Detection device provided by the invention can effectively detect the rotary speed information and current information of mixing plant, have many advantages, such as that failure rate is low, control accuracy is high.
Description
Technical field
The present invention relates to mixing equipment fields, and in particular to a kind of mixing plant rotating speed and current sensing means.
Background technology
Currently, existing mixing plant, rotating speed and the parameters such as electric current of motor need special test device to detect,
And the connection of the hardware of these existing test devices and mixing plant is complex, hardware cost is not low, and its failure rate
It is not low.Therefore, it is necessary to a kind of technical solution be provided, effectively to overcome defect in the prior art.
Invention content
In order to overcome the deficiencies of the prior art and there are the problem of, the present invention provides a kind of mixing plant rotating speed and current detecting
Device can effectively detect the rotary speed information and current information of mixing plant using the detection device, control low with failure rate
The advantages that precision is high.
The present invention is achieved by the following technical solutions：A kind of mixing plant rotating speed and current sensing means, the inspection
It includes PLC, frequency converter, display, current sensor and speed probe to survey device,
The display and frequency converter are connect with the PLC, the power input of the frequency converter and the motor in mixing plant
End connection, the PLC are connect by speed probe with the output end of the motor, and the PLC passes through current sensor and institute
State the power input connection of motor；The frequency converter is used to receive the control for being used to control the motor speed from the PLC
System instruction, and drive the motor to rotate according to the control instruction；
The PLC acquires the rotary speed information of the motor by the speed probe, and is acquired by the current sensor
The current information of the motor finally shows the rotary speed information of acquisition gained with current information on the display.
Further, the detection device further includes the alarm being connect with the PLC, which is used to work as the electricity
Alert when stream information or the rotary speed information are more than preset value.
Preferably, the S7-300 of the model Siemens Company production of the PLC；The speed probe passes for photo-electric
Sensor or hall-effect speed sensor.
Preferably, the frequency converter is Danfoss frequency converter；The alarm is audible-visual annunciator.
Compared with prior art, detection device provided by the invention uses close-loop control mode, and desirable electric eliminating sensor, survey
The hardware devices such as speed variator so as to effectively save hardware cost and reduce hardware connection, have that failure rate is low, control accuracy is high
The advantages that.
Description of the drawings
Fig. 1 is the electrical block diagram of detection device described in the embodiment of the present invention.
Fig. 2 is the electrical block diagram of detection device described in the one of specific embodiment of the present invention.
Specific implementation mode
For the ease of the understanding of those skilled in the art, the present invention is made below in conjunction with the drawings and specific embodiments further
Detailed description.
As shown in attached drawing 1-2, a kind of mixing plant rotating speed and current sensing means, the detection device include PLC, frequency conversion
Device, display, current sensor and speed probe, the display and frequency converter are connect with the PLC, the frequency conversion
Device is connect with the power input of the motor in mixing plant, the output end that the PLC passes through speed probe and the motor
Connection, the PLC are connect by current sensor with the power input of the motor；The frequency converter comes from institute for receiving
Control instructions of the PLC for controlling the motor speed is stated, and drives the motor to rotate according to the control instruction；It is described
PLC acquires the rotary speed information of the motor by the speed probe, and acquires the motor by the current sensor
Current information, finally will acquisition gained rotary speed information shown on the display with current information.
In a wherein preferred embodiment, the model of the PLC is preferably the S7-300 of Siemens Company's production；Institute
It is preferably photoelectric sensor or hall-effect speed sensor to state speed probe；The frequency converter is preferably Danfoss frequency conversion
Device.In addition, the display can be light-emitting diode display or LCD display.
As preferred embodiment, the detection device further includes the alarm being connect with the PLC, which is used for
The alert when the current information or the rotary speed information are more than preset value.In the present embodiment, the alarm is excellent
It is selected as audible-visual annunciator.
Detection device provided by the invention, uses close-loop control mode, and when concrete application, motor is set on PLC
Rotating speed, PLC send corresponding control instruction to frequency converter, and frequency converter works according to the control instruction driving motor received, becomes
Rotary speed information and current information are fed back to PLC by frequency device by speed probe and current sensor respectively, finally by display
Device shows the rotary speed information and current information of motor；When the rotary speed information and current information for detecting motor are more than preset value,
Alarm sends out corresponding alarm message reminding user.Compared with prior art, detection device provided in an embodiment of the present invention,
The hardware devices such as desirable electric eliminating sensor, speed measuring device so as to effectively save hardware cost and reduce hardware connection, have failure
The advantages that rate is low, control accuracy is high.
Above-described embodiment is the preferable realization method of the present invention, is not limited to the present invention, is not departing from this hair
Under the premise of bright inventive concept, any obvious replacement is within protection scope of the present invention.
Claims (6)
1. a kind of mixing plant rotating speed and current sensing means, it is characterised in that：The detection device includes PLC, frequency converter, shows
Show device, current sensor and speed probe,
The display and frequency converter are connect with the PLC, the power input of the frequency converter and the motor in mixing plant
End connection, the PLC are connect by speed probe with the output end of the motor, and the PLC passes through current sensor and institute
State the power input connection of motor；
The frequency converter is used to receive the control instruction for being used to control the motor speed from the PLC, and according to the control
Motor described in order-driven processed rotates；
The PLC acquires the rotary speed information of the motor by the speed probe, and is acquired by the current sensor
The current information of the motor finally shows the rotary speed information of acquisition gained with current information on the display.
2. detection device according to claim 1, it is characterised in that：The detection device further includes being connect with the PLC
Alarm, which is used for the alert when the current information or the rotary speed information are more than preset value.
3. detection device according to claim 1, it is characterised in that：The model Siemens Company production of the PLC
S7-300。
4. detection device according to claim 1, it is characterised in that：The speed probe is for photoelectric sensor or suddenly
That formula speed probe.
5. the detection device according to any one of Claims 1 to 4, it is characterised in that：The frequency converter is Danfoss
Frequency converter.
6. detection device according to claim 5, it is characterised in that：The alarm is audible-visual annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214598.4A CN108344942A (en) | 2017-11-28 | 2017-11-28 | A kind of mixing plant rotating speed and current sensing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214598.4A CN108344942A (en) | 2017-11-28 | 2017-11-28 | A kind of mixing plant rotating speed and current sensing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108344942A true CN108344942A (en) | 2018-07-31 |
Family
ID=62963014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711214598.4A Pending CN108344942A (en) | 2017-11-28 | 2017-11-28 | A kind of mixing plant rotating speed and current sensing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108344942A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223526A (en) * | 2020-10-31 | 2021-01-15 | 宁乡宁华新材料有限公司 | Tubular pile die jumping processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203084496U (en) * | 2012-12-31 | 2013-07-24 | 福建国邦树脂有限公司 | Driving device of generator of polyurethane resin production equipment |
| CN203455459U (en) * | 2013-09-17 | 2014-02-26 | 江门市鸿裕达电机电器制造有限公司 | Comprehensive testing apparatus of food mixer with adjustable speeds |
| CN103838174A (en) * | 2012-11-27 | 2014-06-04 | 武汉钢铁(集团)公司 | Off-line test equipment for continuous casting crystallizer |
| WO2017101135A1 (en) * | 2015-12-18 | 2017-06-22 | 海安县申菱电器制造有限公司 | Intelligent detection system for electromagnetic brake |
-
2017
- 2017-11-28 CN CN201711214598.4A patent/CN108344942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838174A (en) * | 2012-11-27 | 2014-06-04 | 武汉钢铁(集团)公司 | Off-line test equipment for continuous casting crystallizer |
| CN203084496U (en) * | 2012-12-31 | 2013-07-24 | 福建国邦树脂有限公司 | Driving device of generator of polyurethane resin production equipment |
| CN203455459U (en) * | 2013-09-17 | 2014-02-26 | 江门市鸿裕达电机电器制造有限公司 | Comprehensive testing apparatus of food mixer with adjustable speeds |
| WO2017101135A1 (en) * | 2015-12-18 | 2017-06-22 | 海安县申菱电器制造有限公司 | Intelligent detection system for electromagnetic brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223526A (en) * | 2020-10-31 | 2021-01-15 | 宁乡宁华新材料有限公司 | Tubular pile die jumping processing method |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180731 |