CN201234236Y - Motor with rotation speed measurement apparatus - Google Patents
Motor with rotation speed measurement apparatus Download PDFInfo
- Publication number
- CN201234236Y CN201234236Y CNU2008200781538U CN200820078153U CN201234236Y CN 201234236 Y CN201234236 Y CN 201234236Y CN U2008200781538 U CNU2008200781538 U CN U2008200781538U CN 200820078153 U CN200820078153 U CN 200820078153U CN 201234236 Y CN201234236 Y CN 201234236Y
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- China
- Prior art keywords
- motor
- speed measuring
- fluted disc
- fixed
- utility
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- 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 relates to a motor, in particular to a motor with a rotational speed measuring device. The utility model overcomes the defects and the problems due to the fluted disc structure of the rotational speed measuring device-electromagnetic induction type sensor on the prior motor and the unreasonable installation and fixation method. The utility model comprises a motor and a sensor and a speed measuring fluted disc which are fixed on the motor, wherein the speed measuring fluted disc is fixed at the rear end of the shaft coupling of the motor; a senor installing seat opposite to the position of the speed measuring fluted disc is fixed on the end cover of the motor;the senor installing seat is of a cuboid with a round hole at the middle part; and the sensor is inserted in the round hole on the senor installing seat and is fixed with the senor installing seat, so that the cylindrical probe of the sensor penetrates the round hole to be adjacent to the fluted disc. On the premise that no motor structure changes, the accurate measurement of the rotational speed of the motor is realized, and the utility model has the characteristics of simple and compact structure, convenient arrangement, reliable running, and the like, and has popularization and application values in the alternating current or the direct-current transmission speed adjusting system.
Description
Technical field
The utility model relates to motor, is specially a kind of motor that has rotation-speed measuring device.
Background technology
In the moving governing system of AC and DC fax, the measurement of motor speed is an important link, and can the system of being directly connected to stable operation.In the engineering practice, electromagnetic sensor has obtained widespread usage with its high reliability on motor speed measurement; But this type transducer must have large diameter speed measuring fluted disc, and must guarantee that transducer bottom surface to the assemblage gap of crest top land is 0.6-1.5mm, to guarantee rate accuracy.At present three kinds of fluted disc settling modes are being arranged on the motor: (1) speed measuring fluted disc is installed on the spindle nose end face; (2) tooth punching on coupling flange dish cylindrical; (3) tooth punching on the fan cylindrical of motor internal.(1) kind mode has directly strengthened axial dimension, needs special-purpose mounting frame for sensor; (2) plants axial dimension reduces, but the coupler structure complexity also needs special-purpose mounting frame for sensor; (3) kind mode does not need special-purpose mounting bracket.Comprehensive relatively, (1), (2) kind mode overhauls conveniently, but the support rigidity directly influences gap, poor reliability; (3) plants mode reliability height and does not need special-purpose mounting frame for sensor, but electric machine structure is complicated and maintenance inconvenience.
Summary of the invention
The utility model for solve on the existing motor rotation-speed measuring device---the fluted disc structure of electromagnetic sensor and unreasonable defective of bringing of the mode that installs and fixes and problem provide a kind of motor that has rotation-speed measuring device.This motor that has rotation-speed measuring device has been simplified modular construction when guaranteeing reliability, maintenanceability, reduced manufacturing cost.
The utility model is to adopt following technical scheme to realize: the motor that has rotation-speed measuring device, comprise motor and the transducer, the speed measuring fluted disc that are fixed on the motor, speed measuring fluted disc is fixed in the rear end (near an end of electric motor end cap) of motor coupler, on electric motor end cap, be fixed with the transducer mount pad relative with the speed measuring fluted disc position, the transducer mount pad is the round-meshed cuboid in a middle part, transducer inserts the circular hole on the transducer mount pad and fixes with the transducer mount pad, passes circular hole with regard to the cylindrical probe that makes transducer like this and fluted disc is adjacent.The utility model adopts independent speed measuring fluted disc, with simplified structure; Speed measuring fluted disc is fixed in the shaft coupling rear end, guarantees running accuracy, reduces axial dimension; Utilize electric motor end cap and, simplified sensor stand by the mount pad fixation of sensor.When speed measuring fluted disc rotated with shaft coupling, transducer output rectangle square-wave signal was for control system provides speed feedback.
The utility model is under the prerequisite that does not change electric machine structure, realize the accurate measurement of motor speed, have that simple and compact for structure, arrangement convenience, enforcement are convenient, assembling and easy to maintenance, reliability is high, adaptability is strong, characteristics such as reliable, motor is installed constraint to be lacked, good manufacturability, low cost of manufacture.In interchange or direct current transmission speed-regulating system, has application value.
Description of drawings
Fig. 1 is the structural representation that has the motor of rotation-speed measuring device described in the utility model;
Fig. 2 is the A-A profile of Fig. 1;
Embodiment
The motor that has rotation-speed measuring device, comprise motor 1 and the transducer 2, the speed measuring fluted disc 4 that are fixed on the motor, speed measuring fluted disc 4 is fixed in the rear end (near an end of electric motor end cap) of motor coupler 5, on electric motor end cap, be fixed with the transducer mount pad 3 relative with speed measuring fluted disc 4 positions, transducer mount pad 3 is the round-meshed cuboid in a middle part, and transducer 2 inserts the circular hole on the transducer mount pads 3 and fixes with the transducer mount pad.Transducer 2 adopts electromagnetic sensor, is generally cylindrical structure, and supply voltage DC24V includes induction coil.After transducer fixed, circular hole and fluted disc that the cylindrical probe of transducer passes on the transducer mount pad were adjacent, and when speed measuring fluted disc rotated, transducer output rectangle square-wave signal was for control system provides speed feedback.On electric motor end cap, be fixed with dust cover 6, be used for dustproof antifouling to speed measuring fluted disc and transducer, improve the device operational reliability.Dust cover 6 by bolt on electric motor end cap.Install and maintenance for convenient, dust cover 6 is divided into left and right sides two halves along diametric(al).When motor is not worked, dismountable dust cover, vitals such as cleaning speed measuring fluted disc, sensor probe.
Claims (3)
1, a kind of motor that has rotation-speed measuring device, comprise motor (1) and be fixed in transducer (2), speed measuring fluted disc (4) on the motor, it is characterized by: speed measuring fluted disc (4) is fixed in the rear end of motor coupler (5), on electric motor end cap, be fixed with the transducer mount pad (3) relative with speed measuring fluted disc (4) position, transducer mount pad (3) is the round-meshed cuboid in a middle part, and transducer (2) inserts the circular hole on the transducer mount pad (3) and fixes with the transducer mount pad.
2, the motor that has rotation-speed measuring device as claimed in claim 1 is characterized by: be fixed with dust cover (6) on electric motor end cap.
3, the motor that has rotation-speed measuring device as claimed in claim 2 is characterized by: dust cover (6) is divided into left and right sides two halves along diametric(al).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200781538U CN201234236Y (en) | 2008-07-30 | 2008-07-30 | Motor with rotation speed measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200781538U CN201234236Y (en) | 2008-07-30 | 2008-07-30 | Motor with rotation speed measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234236Y true CN201234236Y (en) | 2009-05-06 |
Family
ID=40620624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200781538U Expired - Fee Related CN201234236Y (en) | 2008-07-30 | 2008-07-30 | Motor with rotation speed measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201234236Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807251A (en) * | 2017-11-24 | 2018-03-16 | 苏州汉腾自动化设备有限公司 | Motor speed measurement device |
-
2008
- 2008-07-30 CN CNU2008200781538U patent/CN201234236Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807251A (en) * | 2017-11-24 | 2018-03-16 | 苏州汉腾自动化设备有限公司 | Motor speed measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20130730 |