CN212275791U - Rotating speed detection device of large megawatt fan - Google Patents
Rotating speed detection device of large megawatt fan Download PDFInfo
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- CN212275791U CN212275791U CN202021022609.6U CN202021022609U CN212275791U CN 212275791 U CN212275791 U CN 212275791U CN 202021022609 U CN202021022609 U CN 202021022609U CN 212275791 U CN212275791 U CN 212275791U
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Abstract
The utility model discloses a rotational speed detection device of big megawatt fan, including the gear, speed sensor, the mount, signal transmission module, PLC and human-computer interface, the gear sleeve is established on the main shaft of fan, speed sensor passes through the mount and is located one side of gear, speed sensor passes through signal transmission module and is connected with the PLC electricity, PLC is connected with the human-computer interface electricity, among this rotational speed detection device of big megawatt fan, carry out real-time supervision by speed sensor to the rotational speed of gear, can carry out accurate detection to the rotational speed of fan, the cooperation mount can detect the fan of a take the altitude interval simultaneously, improve the application scope of device.
Description
Technical Field
The utility model relates to a rotational speed detects technical field, concretely relates to rotational speed detection device of big megawatt fan.
Background
The actual performance of whole equipment has been decided to the rotational speed of fan, therefore need carry out real time monitoring to the fan rotational speed, among the prior art, generally convert the operating speed through the frequency that detects the converter that the fan motor joins in marriage, have certain error with the true rotational speed of fan main shaft, and the user can't accurately grasp the accurate rotational speed of fan, just also can't carry out reasonable targeted adjustment to the fan, influences the stability and the security of fan operation.
In summary, how to accurately measure the rotation speed of the fan is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a overcome foretell not enough, provide a rotational speed detection device of big megawatt fan.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a rotational speed detection device of big megawatt fan, includes gear, speed sensor, mount, signal transmission module, PLC and human-computer interface, and the gear sleeve is established on the main shaft of fan, and speed sensor passes through the mount and is located one side of gear, and speed sensor passes through signal transmission module and is connected with the PLC electricity, and PLC is connected with the human-computer interface electricity.
The rotating speed of the gear is monitored in real time by the rotating speed sensor, a signal detected by the rotating speed sensor is transmitted to the PLC through the signal transmission module, the PLC transmits data to the human-computer interface, and the real-time rotating speed condition can be checked on the human-computer interface.
When measuring the rotational speed, according to frequency formula f being 1/T, set up the highest frequency of measurement and correspond output signal in the module that tests the speed earlier, f being n/T, n is the highest rotational speed, T: and the time is 60 seconds, the actual rotating speed signal is converted according to the frequency ratio received by the sensor, the rotating speed signal is received by the signal transmission module and then sent to an A/D port of the PLC, the test result is displayed on a human-computer interface, and the tester extracts the data.
Preferably, the fixing frame comprises a base, a stud and a fixing block, the stud is vertically arranged on the base and penetrates through the fixing block, a nut is arranged below the fixing block and is in threaded connection with the stud, the rotating speed sensor is located on one side of the fixing block, the nut is adjusted, the nut can be adjusted in the position of the stud, the height of the rotating speed sensor can be controlled, and the gear on the fan within a certain height interval is detected, so that the application range of the device is widened.
Preferably, the rotation speed sensor is an inductive rotation speed sensor.
Preferably, the PLC is of a model of Bifu CX 9020.
Preferably, the stud is in threaded connection with the base.
Preferably, the stud has a scale on its outer circumference.
The utility model has the advantages that: in the rotating speed detection device of the large megawatt fan, the rotating speed of the gear is monitored by the rotating speed sensor in real time, the rotating speed of the fan can be accurately detected, and the fan in a certain height interval can be detected by matching with the fixing frame, so that the application range of the device is widened.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a main shaft, 2 gears, 3 studs, 4 fixing blocks, 5 rotating speed sensors, 6 nuts, 7 bases, 8 signal transmission modules, 9 PLC and 10 human-computer interfaces.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the rotation speed detection device of the large megawatt fan comprises a gear 2, a rotation speed sensor 5, a fixing frame, a signal transmission module 8, a PLC 9 and a human-computer interface 10, wherein the gear 2 is sleeved on a main shaft 1 of the fan, the rotation speed sensor 5 is located on one side of the gear 2 through the fixing frame, the rotation speed sensor 5 is electrically connected with the PLC 9 through the signal transmission module 8, and the PLC 9 is electrically connected with the human-computer interface 10.
The rotating speed of the gear 2 is monitored in real time by the rotating speed sensor 5, a signal detected by the rotating speed sensor 5 is transmitted to the PLC 9 through the signal transmission module 8, the PLC 9 transmits data to the human-computer interface 10, and the real-time rotating speed condition can be checked on the human-computer interface 10.
When measuring the rotational speed, according to frequency formula f being 1/T, set up the highest frequency of measurement and correspond output signal in the module that tests the speed earlier, f being n/T, n is the highest rotational speed, T: the time is 60 seconds, the actual rotating speed signal is converted according to the frequency ratio received by the sensor, the rotating speed signal is received by the signal transmission module 8 and then sent to an A/D port of the PLC 9, the test result is displayed on the human-computer interface 10, and the tester extracts the data.
In this example: the fixing frame comprises a base 7, a stud 3 and a fixing block 4, the stud 3 is vertically arranged on the base 7, the stud 3 penetrates through the fixing block 4, a nut 6 is arranged below the fixing block 4, the nut 6 is in threaded connection with the stud 3, and the rotating speed sensor 5 is located on one side of the fixing block 4.
In this example: the rotating speed sensor 5 is an inductive rotating speed sensor 5.
In this example: the model of the PLC 9 is Beifu CX 9020.
In this example: the stud 3 is in threaded connection with the base 7.
In this example: scales are arranged on the periphery of the stud 3.
In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A rotation speed detection device of a large megawatt fan is characterized in that: including gear, speed sensor, mount, signal transmission module, PLC and human-computer interface, the gear housing is established on the main shaft of fan, and speed sensor passes through the mount and is located one side of gear, and speed sensor passes through signal transmission module and is connected with the PLC electricity, and PLC is connected with the human-computer interface electricity.
2. The rotation speed detecting device of a large megawatt fan according to claim 1, characterized in that: the fixing frame comprises a base, a stud and a fixing block, the stud is vertically arranged on the base and penetrates through the fixing block, a nut is arranged below the fixing block and is in threaded connection with the stud, and the rotating speed sensor is located on one side of the fixing block.
3. The rotation speed detecting device of a large megawatt fan according to claim 1, characterized in that: the rotating speed sensor is an inductive rotating speed sensor.
4. The rotation speed detecting device of a large megawatt fan according to claim 1, characterized in that: the PLC is of a model of Beifu CX 9020.
5. The rotation speed detecting device of a large megawatt fan according to claim 2, characterized in that: the stud is in threaded connection with the base.
6. The rotation speed detecting device of a large megawatt fan according to claim 2, characterized in that: scales are arranged on the periphery of the stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021022609.6U CN212275791U (en) | 2020-06-07 | 2020-06-07 | Rotating speed detection device of large megawatt fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021022609.6U CN212275791U (en) | 2020-06-07 | 2020-06-07 | Rotating speed detection device of large megawatt fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212275791U true CN212275791U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021022609.6U Active CN212275791U (en) | 2020-06-07 | 2020-06-07 | Rotating speed detection device of large megawatt fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212275791U (en) |
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2020
- 2020-06-07 CN CN202021022609.6U patent/CN212275791U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214000 Building A, Standard Workshop Phase II, Runzhou Road, Industrial Transformation Cluster, Huishan District, Wuxi City, Jiangsu Province Patentee after: Jiangsu Naquan Hongyuan New Energy Technology Co.,Ltd. Address before: 214400 No.95 Yueshan Road, Yuecheng Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGYIN HONGYUAN NEW ENERGY TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address |