CN202351259U - Low-rotation-speed speed measurement device - Google Patents
Low-rotation-speed speed measurement device Download PDFInfo
- Publication number
- CN202351259U CN202351259U CN2011203990575U CN201120399057U CN202351259U CN 202351259 U CN202351259 U CN 202351259U CN 2011203990575 U CN2011203990575 U CN 2011203990575U CN 201120399057 U CN201120399057 U CN 201120399057U CN 202351259 U CN202351259 U CN 202351259U
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- CN
- China
- Prior art keywords
- speed
- speed measurement
- motor shaft
- receiving unit
- signal receiving
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a low-rotation-speed speed measurement device in the field of speed measurement devices. The speed measurement device comprises an induction device which is arranged on a motor shaft and can rotate along with the motor shaft, wherein the induction device wraps the semicycle of the motor shaft, and the induction device and a sensor form a signal receiving unit; and the output end of the signal receiving unit is connected with the input end of a PLC (Programmable Logic Controller) control unit. According to the speed measurement device, a speed measurement instrument or a PLC speed measurement module used during low-speed speed measurement is omitted, so that the production cost is reduced. The speed measurement device can be applied to a low-speed speed measurement system of a feed mill.
Description
Technical field
The utility model relates to a kind of speed measuring device, particularly a kind of slow-speed of revolution speed measuring device.
Background technology
In the field of testing the speed, in most cases belong to low speed test the speed scope, particularly feedstuff industry, the low speed range applications that tests the speed is extensive.
Existing velocity measuring technique adopts test the speed instrument or PLC speed measuring module usually, but when low speed tests the speed, still adopts this pattern that tests the speed, thereby has increased cost.
The utility model content
The purpose of the utility model provides a kind of slow-speed of revolution speed measuring device, avoids the use of test the speed instrument and PLC speed measuring module, thereby has reduced production cost.
The purpose of the utility model is achieved in that a kind of slow-speed of revolution speed measuring device; Comprise and be installed on the motor shaft induction installation that can rotate with motor shaft; Said induction installation encases the setting of motor shaft half-turn; And induction installation and sensor are formed signal receiving unit, and said signal receiving unit output terminal links to each other with the input end of PLC control module.
During the utility model work, the induction installation that is installed on the motor output shaft rotates with the rotation of motor shaft, when the induction installation on being installed in motor shaft turns around through sensor; Sensor produces a level signal; This signal flows to PLC through digital-quantity input interface, is handled obtaining the current motor rotating speed by the PLC internal processes, and compares with setting value; Be lower than setting value as if measured value, then output alarm.Compared with prior art; The beneficial effect of the utility model is: said induction installation encases the setting of motor shaft half-turn, has guaranteed 50% dutycycle, avoids dropout; Guaranteed the stability of signal; When low speed tests the speed, needn't select test the speed instrument or PLC speed measuring module for use, reduced production cost.The utility model can be applicable in the feed factory low speed velocity-measuring system.
As the improvement of the utility model, be provided with level switch module between said signal receiving unit and the PLC control module.Increased the usable range of this device; When if the signal of signal receiving unit output is high level; Need not level switch module, if when the signal of signal receiving unit output is low level, then low level signal converts high level to through level switch module and flows to PLC and carry out computing.
As the improvement of the utility model, said induction installation is the irony sensing chip.It is simple in structure, and is with low cost, and induced signal is strong.
As the improvement of the utility model, said sensor is near switch.It receives signal stabilization, has guaranteed the stability of signal transmission, and with low cost.
Description of drawings
Fig. 1 is the utility model control principle block diagram.
Fig. 2 is a signal receiving unit structural representation in the utility model.
Fig. 3 is the utility model electrical schematic diagram.
Fig. 4 for high level output near the switch electrical schematic diagram.
Fig. 5 for low level output near the switch electrical schematic diagram.
Fig. 6 is the level switch module electrical schematic diagram.
Wherein, 1 near switch, 2 irony sensing chips, 3 motor shafts.
Embodiment
A kind of slow-speed of revolution speed measuring device as shown in Figure 1; Comprise and be installed on the motor shaft 3 the irony sensing chip 2 that can rotate with motor shaft 3; Said irony sensing chip 2 encases motor shaft 3 half-turn settings; And irony sensing chip 2 with form signal receiving unit near switch 1, said signal receiving unit output terminal links to each other with the input end of PLC control module, is directed against the useful signal kind of exporting near switch 1 between signal receiving unit and the PLC control module and is provided with level switch module.
During the utility model work, the irony sensing chip 2 that is installed on the motor output shaft rotates with the rotation of motor shaft 3, and the irony sensing chip 2 on being installed in motor shaft 3 turns around when passing through near switch 1; Produce a level signal near switch 1; This signal flows to PLC through digital-quantity input interface, is handled obtaining the current motor rotating speed by the PLC internal processes, and compares with setting value; Be lower than setting value as if measured value, then output alarm; To being arranged on level switch module between signal receiving unit and the PLC control module, increased the usable range of this device near switch 1 output signal kinds; If when the signal of signal receiving unit output is high level, need not level switch module, if when the signal of signal receiving unit output is low level, then low level signal converts high level to through level switch module and flows to PLC and carry out computing.
The utility model is not limited to the foregoing description; On the basis of the disclosed technical scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the protection domain of the utility model.
Claims (4)
1. slow-speed of revolution speed measuring device; It is characterized in that; Comprise and be installed on the motor shaft induction installation that can rotate with motor shaft; Said induction installation encases the setting of motor shaft half-turn, and induction installation and sensor composition signal receiving unit, and said signal receiving unit output terminal links to each other with the input end of PLC control module.
2. a kind of slow-speed of revolution speed measuring device according to claim 1 is characterized in that, is provided with level switch module between said signal receiving unit and the PLC control module.
3. a kind of slow-speed of revolution speed measuring device according to claim 1 and 2 is characterized in that said induction installation is the irony sensing chip.
4. a kind of slow-speed of revolution speed measuring device according to claim 1 and 2 is characterized in that said sensor is near switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203990575U CN202351259U (en) | 2012-03-13 | 2012-03-13 | Low-rotation-speed speed measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203990575U CN202351259U (en) | 2012-03-13 | 2012-03-13 | Low-rotation-speed speed measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351259U true CN202351259U (en) | 2012-07-25 |
Family
ID=46540255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203990575U Expired - Fee Related CN202351259U (en) | 2012-03-13 | 2012-03-13 | Low-rotation-speed speed measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109934516A (en) * | 2019-05-01 | 2019-06-25 | 重庆韦娜软件有限公司 | Lifting examination pressing ring scoring apparatus, method and computer readable storage medium |
-
2012
- 2012-03-13 CN CN2011203990575U patent/CN202351259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109934516A (en) * | 2019-05-01 | 2019-06-25 | 重庆韦娜软件有限公司 | Lifting examination pressing ring scoring apparatus, method and computer readable storage medium |
| CN109934516B (en) * | 2019-05-01 | 2023-11-14 | 重庆驿锋智慧科技有限公司 | Hoisting examination clamping ring scoring device and method and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MUYANG CO., LTD. Free format text: FORMER OWNER: JIANGSU MUYANG GROUP CORP., LTD. Effective date: 20121030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121030 Address after: 225127 No. 1 shepherd Road, Hanjiang Economic Development Zone, Jiangsu, Yangzhou Patentee after: Muyang Co., Ltd. Address before: 225127 No. 1 shepherd Road, Hanjiang Industrial Park, Jiangsu, Yangzhou Patentee before: Jiangsu Muyang Group Corp., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU MUYANG GROUP CORP., LTD. Free format text: FORMER OWNER: MUYANG CO., LTD. Effective date: 20130412 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130412 Address after: 225127 No. 1 shepherd Road, Hanjiang Industrial Zone, Hanjiang, Jiangsu, Yangzhou Patentee after: Jiangsu Muyang Group Corp., Ltd. Address before: 225127 No. 1 shepherd Road, Hanjiang Economic Development Zone, Jiangsu, Yangzhou Patentee before: Muyang Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20190313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |