CN103278658A - High-power motor rotation speed detection device - Google Patents
High-power motor rotation speed detection device Download PDFInfo
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- CN103278658A CN103278658A CN2013102257186A CN201310225718A CN103278658A CN 103278658 A CN103278658 A CN 103278658A CN 2013102257186 A CN2013102257186 A CN 2013102257186A CN 201310225718 A CN201310225718 A CN 201310225718A CN 103278658 A CN103278658 A CN 103278658A
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- stainless steel
- motor
- optoelectronic switch
- speed
- power motor
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Abstract
The invention discloses a high-power motor rotation speed detection device. The high-power motor rotation speed detection device comprises an electric generator, an electromotor, a stainless steel ring, a stainless steel sensing indicator, an optoelectronic switch and a speed measurement display device. A high-power motor is in coaxial connection with the electric generator through the electromotor, the stainless steel ring is sleeved on the coaxial connection portion of the electromotor, the stainless steel sensing indicator is fixed on the stainless steel ring, and the optoelectronic switch is arranged under the coaxial connection portion and connected with the speed measurement display device. The high-power motor rotation speed detection device is low in price, capable of bringing convenience to measurement, high in measurement accuracy and long in service life, and a teacher can allow students to conduct an experiment by themselves without any worry.
Description
Technical field
The present invention relates to a kind of large power, electrically tachometer.
Background technology
Heavy-duty motor motor speed pick-up unit is the most frequently used pick-up unit of School of High Profession Technology's motor application technical skills operation, the student often uses " tachometer gage " to survey rotating speed when doing experiment,, the price of tachometer gage is more expensive and be easy to damage, the student carry out when testing the speed experiment extremely inconvenient.Thereby be badly in need of a kind of speed detector, and can reduce cost, conveniently realize the detection of motor speed.
Summary of the invention
The present invention is directed to existing deficiency, a kind of large power, electrically tachometer is provided, can reduce the detection cost, conveniently realize the detection of motor speed.For achieving the above object, the present invention adopts technical scheme to be:
A kind of large power, electrically tachometer, comprise generator, motor, stainless steel ring, stainless steel sensor pointer, optoelectronic switch and the display device that tests the speed, described heavy-duty motor is connected with generator coaxle by motor, described motor coaxle junction is with stainless steel ring, at the fixing stainless steel pointer of described stainless steel ring, with being provided with an optoelectronic switch under the shaft connection place, described optoelectronic switch links to each other with the display device that tests the speed.
The length of described stainless steel pointer is 5 centimetres; The quantity of described stainless steel pointer is 8; The described display device that tests the speed comprises detection module, counting module, display module, wherein, detection module: be used for accepting the signal that optoelectronic switch sends; Counting module: be used for the signal that receives is counted; Display module: be used for the motor actual speed is shown in digital form
The invention has the beneficial effects as follows: this device price is lower, can be loaded on all group of motors; It is convenient to measure, and the student can read rotating speed very intuitively; The measuring accuracy height because adopted 8 pulses to calculate, is greatly improved so measure the precision of rotating speed in actual use; Do not have limit of range, the student need not consider the selection of range in use; High life, the student is not easy to damage in use, can the relieved bold student that allows independently do experiment!
Description of drawings
Fig. 1 is a kind of large power, electrically tachometer of the present invention synoptic diagram.
Embodiment
The present invention is specifically introduced as follows below in conjunction with drawings and Examples:
A kind of large power, electrically tachometer comprises generator, motor, stainless steel ring, stainless steel sensor pointer, optoelectronic switch and the display device that tests the speed.Described heavy-duty motor is connected with generator coaxle by motor, described motor coaxle junction is with stainless steel ring, fix the stainless steel pointer 1 of 85 centimeter length at described stainless steel ring, with being provided with an optoelectronic switch 2 under the shaft connection place, described optoelectronic switch links to each other with the display device 3 that tests the speed.The display device 3 that tests the speed comprises detection module, counting module, display module, wherein, detection module: be used for accepting the signal that optoelectronic switch sends; Counting module: be used for the signal that receives is counted; Display module: be used for the motor actual speed is shown in digital form.
So, the moving circle of motor revolution, stainless steel pointer 1 just with contact 8 times with optoelectronic switch 2, optoelectronic switch receives signal 8 times, in the display device that tests the speed, the signal transition that optoelectronic switch is received is 8 pulse outputs, calculates umber of pulse by singlechip technology, and finally the form with numeral shows motor speed.
Below announced the present invention with preferred embodiment, so it is not in order to limiting the present invention, all take to be equal to replace or technical scheme that the form of equivalent transformation obtains, all drop within protection scope of the present invention.
Claims (4)
1. large power, electrically tachometer, comprise generator, motor, stainless steel ring, stainless steel sensor pointer, optoelectronic switch and the display device that tests the speed, it is characterized in that, described heavy-duty motor is connected with generator coaxle by motor, described motor coaxle junction is with stainless steel ring, at the fixing stainless steel pointer of described stainless steel ring, with being provided with an optoelectronic switch under the shaft connection place, described optoelectronic switch links to each other with the display device that tests the speed.
2. a kind of large power, electrically tachometer according to claim 1 is characterized in that, the length of described stainless steel pointer is 5 centimetres.
3. a kind of large power, electrically tachometer according to claim 2 is characterized in that, the quantity of described stainless steel pointer is 8.
4. a kind of large power, electrically tachometer according to claim 1 is characterized in that, the described display device that tests the speed comprises detection module, counting module, display module, wherein,
Detection module: be used for accepting the signal that optoelectronic switch sends;
Counting module: be used for the signal that receives is counted;
Display module: be used for the motor actual speed is shown in digital form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102257186A CN103278658A (en) | 2013-06-04 | 2013-06-04 | High-power motor rotation speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102257186A CN103278658A (en) | 2013-06-04 | 2013-06-04 | High-power motor rotation speed detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103278658A true CN103278658A (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102257186A Pending CN103278658A (en) | 2013-06-04 | 2013-06-04 | High-power motor rotation speed detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103278658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635103A (en) * | 2013-11-15 | 2015-05-20 | 珠海格力电器股份有限公司 | Power line detection device |
| CN116449046A (en) * | 2023-06-16 | 2023-07-18 | 深圳市迈凯诺电气股份有限公司 | Motor rotation speed tracking starting speed detection system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61240120A (en) * | 1985-04-17 | 1986-10-25 | Mitsubishi Electric Corp | Apparatus for detecting rotation |
| JPH01250072A (en) * | 1988-03-30 | 1989-10-05 | Toshiba Corp | Photoelectric detector for velocity |
| CN201569664U (en) * | 2009-11-18 | 2010-09-01 | 浙江省特种设备检验研究院 | All-purpose position and speed measuring device for bridge gantry crane |
| CN202631563U (en) * | 2012-05-14 | 2012-12-26 | 无锡小天鹅股份有限公司 | Motor speed detector |
| CN202793784U (en) * | 2012-08-08 | 2013-03-13 | 西安久和能源科技有限公司 | Coupler protective device of wind generating set |
| CN203299223U (en) * | 2013-06-04 | 2013-11-20 | 南京化工职业技术学院 | Rotating speed detection device for large-power motor |
-
2013
- 2013-06-04 CN CN2013102257186A patent/CN103278658A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61240120A (en) * | 1985-04-17 | 1986-10-25 | Mitsubishi Electric Corp | Apparatus for detecting rotation |
| JPH01250072A (en) * | 1988-03-30 | 1989-10-05 | Toshiba Corp | Photoelectric detector for velocity |
| CN201569664U (en) * | 2009-11-18 | 2010-09-01 | 浙江省特种设备检验研究院 | All-purpose position and speed measuring device for bridge gantry crane |
| CN202631563U (en) * | 2012-05-14 | 2012-12-26 | 无锡小天鹅股份有限公司 | Motor speed detector |
| CN202793784U (en) * | 2012-08-08 | 2013-03-13 | 西安久和能源科技有限公司 | Coupler protective device of wind generating set |
| CN203299223U (en) * | 2013-06-04 | 2013-11-20 | 南京化工职业技术学院 | Rotating speed detection device for large-power motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635103A (en) * | 2013-11-15 | 2015-05-20 | 珠海格力电器股份有限公司 | Power line detection device |
| CN116449046A (en) * | 2023-06-16 | 2023-07-18 | 深圳市迈凯诺电气股份有限公司 | Motor rotation speed tracking starting speed detection system and method |
| CN116449046B (en) * | 2023-06-16 | 2023-08-25 | 深圳市迈凯诺电气股份有限公司 | Motor rotation speed tracking starting speed detection system and method |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |