CN202906681U - Servo motor - Google Patents
Servo motor Download PDFInfo
- Publication number
- CN202906681U CN202906681U CN2012206205105U CN201220620510U CN202906681U CN 202906681 U CN202906681 U CN 202906681U CN 2012206205105 U CN2012206205105 U CN 2012206205105U CN 201220620510 U CN201220620510 U CN 201220620510U CN 202906681 U CN202906681 U CN 202906681U
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- encoder
- rotor
- servo motor
- rotating shaft
- cover
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- Expired - Fee Related
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Abstract
The utility model discloses a servo motor, comprising a rotor, a stator, a front cover, and a rear cover. The rotor comprises a rotating shaft, a rotor core, and a permanent magnet. The permanent magnet is fixed on an outer side of the rotor core in a surrounding manner. Two ends of the stator are respectively provided with the front cover and the rear cover. A front end of the rotating shaft which is disposed on the rotor extends out of the front cover, and a tail end of the rotor rotating shaft is disposed through the rear cover. The servo motor is characterized by also comprising an encoder and an encoder cover used for precision control. A front end of the encoder is connected with the rear cover through a bolt, and a rear end of the encoder is tightly connected with the encoder cover through a bolt. An efficient permanent magnet material of neodymium iron boron is used in the servo motor. In preliminary forecasting, the servo motor saves 30% materials compared with a conventional servo motor, and comprehensive power saving rate reaches 20%. The servo motor is assembled by using a high-precision motor component of encoder, thereby improving automation degree and ensuring operation precision.
Description
Technical field
The utility model relates to a kind of technical field of motors, relates in particular to a kind of servomotor.
Background technology
Motor is the power source in the fields such as industrial or agricultural, building and public utility, is " heart " parts of socio-economic development.At present China motor year power consumption surpasses 2,000,000,000,000 kilowatt hours, account for the China power consumption 60% and industrial electric weight 80%.
With respect to the situation that is efficient or ultra high efficiency energy-saving electric machine on the European ﹠ American Market, the Chinese energy-saving efficient motor market share is very little, and the electric system overall operation efficiency is lower by about 20% than developed country.Widely popularize energy-saving efficient motor, propulsion energy-saving and reduce discharging, for finishing per Unit GDP Energy Consumption decline target during " 12 ", ensure that national energy security is significant.
Servomotor (servo motor) is the important kind of motor, is the engine of control mechanical organ running in servo system, is the indirect speed change gear of a kind of subsidy motor.Be widely used in the fields such as lathe, printing equipment, packaging facilities, Weaving device, rubber and plastic equipment, electronic semi-conductor, automatic production line.Yet servomotor is the parts of energy consumption maximum in whole control system, accounts for the 50%-80% of complete machine electricity consumption total amount in most automated machines, and power consumption is the most serious.
Permanent-magnet servo motor is monopolized by overseas enterprise substantially as the high-end motor of electromechanics trade, and the domestic enterprise that can manufacture permanent-magnet servo motor is few.The general combination property of permanent-magnet servo motor of at present domestic production is incomplete, and result of use is relatively poor, and major part exists control precision not high, and efficient is low, and the response time is long, and is fragile, the large and low inferior shortcoming of efficiency of torque ripple.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, and a kind of energy-conservation and servomotor that control precision is high is provided, and by adopting the magnetic Nd-Fe-B ring permanent magnetic material, realizes energy-saving effect, designs simultaneously encoder, realizes the precision control of rotor.
The technical solution of the utility model is: a kind of servomotor, comprise rotor, stator, protecgulum, bonnet, rotor comprises rotating shaft, rotor core and permanent magnet, described magnet ring is around being fixed on the rotor core outside, the two ends of stator are respectively arranged with a protecgulum and a bonnet, the rotating shaft front end that is positioned at rotor stretches out outside the protecgulum, the rotating shaft tail end of rotor penetrates in the bonnet, it is characterized in that: also comprise for the encoder of realizing precision control and encoder lid, described encoder front end links to each other with bonnet by bolt, and the encoder rear end covers tightly close linking to each other by bolt and encoder.
Described permanent magnet is magnetic Nd-Fe-B ring, magnetic Nd-Fe-B ring is the rare earth element magnet of high-coercive force, make magneto servomotor simple in structure, reliable, that efficient is high by this permanent magnet, acquisition is less by 1/2 than DC motor overall dimension, quality alleviates 60%, material reduces, reach energy-conservation, and rotor inertia is reduced to 1/5 of DC motor.
Described encoder is in order to the current location that reads servomotor and feed back to servo-driver, and the servo driver drives rotor is realized the precision control of rotor.
The beneficial effects of the utility model are:
1, the utility model adopts efficient permanent magnet material magnetic Nd-Fe-B ring, saves 30% material than traditional servomotor, and the integrated power-saving rate can reach 20%.
2, adopt high-precision motor coding of parts and components device to assemble, improve automaticity, guarantee running precision.
Description of drawings
Accompanying drawing 1 is the structural representation of servomotor described in the utility model.
Among the figure, 1-protecgulum, 2-rotating shaft, 3-rotor, 4-permanent magnet, 5-stator, 6-bonnet, 7-encoder, 8-encoder lid, 9-bearing.
Embodiment
Below in conjunction with embodiment the utility model is described further:
In the present embodiment, as shown in Figure 1, a kind of servomotor, comprise rotor 3, stator 5, protecgulum 1, bonnet 6, rotor 3 comprises rotating shaft 2, rotor core and permanent magnet 4, permanent magnet 4 is magnetic Nd-Fe-B ring, magnetic Nd-Fe-B ring is the rare earth element magnet of high-coercive force, make simple in structure by permanent magnet 4, reliable, the magneto servomotor that efficient is high, acquisition is less by 1/2 than DC motor overall dimension, quality alleviates 60%, material reduces, reach energy-conservation, and rotor 3 inertia reduce to 1/5 of DC motor, permanent magnet 4 is around being fixed on the rotor core outside, the two ends of stator 5 are respectively arranged with a protecgulum 1 and a bonnet 6, rotating shaft 2 front ends that are positioned at rotor 3 stretch out outside the protecgulum 1, and rotating shaft 2 tail ends of rotor 3 penetrate in the bonnet 6, also comprise encoder 7 and the encoder lid 8 of realizing precision control, encoder 7 front ends link to each other with bonnet 6 by bolt, and encoder 7 rear ends closely link to each other with encoder lid 8 by bolt.Encoder 7 is in order to the current location that reads servomotor and feed back to servo-driver, and servo driver drives rotor 3 is realized the precision control of rotor 3.
Embodiment of the present utility model is as follows:
Adopt magnetic Nd-Fe-B ring around being fixed on the rotor core outside, rotating shaft 2 is crossed in the rotor core inboard, the inner ring of bearing 9 is set in the rotating shaft 2, and with rotating shaft 2 rotations, the tail end of the rotating shaft 2 of rotor 3 is equipped with an encoder 7 for detecting rotating shaft 2 rotating speeds, encoder 7 is fixedly mounted on the tail end of rotating shaft 2 by bonnet 6, and rotates synchronously with rotating shaft 2, and 8 on encoder lid is fixed on the bonnet 6 by the bolt compact lock.Encoder 7 is used for reading the current location of servomotor and feeding back to servo-driver, and servo driver drives rotor 3 is realized the precision control of rotor 3.The utility model not only reaches energy-saving effect by adopting magnetic Nd-Fe-B ring ring and encoder 7, and realizes the precision control of rotor 3.
More than show and described principal character of the present utility model and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. servomotor, comprise rotor, stator, protecgulum, bonnet, rotor comprises rotating shaft, rotor core and permanent magnet, described magnet ring is around being fixed on the rotor core outside, the two ends of stator are respectively arranged with a protecgulum and a bonnet, the rotating shaft front end that is positioned at rotor stretches out outside the protecgulum, the rotating shaft tail end of rotor penetrates in the bonnet, it is characterized in that: also comprise for the encoder of realizing precision control and encoder lid, described encoder front end links to each other with bonnet by bolt, and the encoder rear end covers tightly close linking to each other by bolt and encoder.
2. servomotor according to claim 1, it is characterized in that: described permanent magnet is magnetic Nd-Fe-B ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206205105U CN202906681U (en) | 2012-11-21 | 2012-11-21 | Servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206205105U CN202906681U (en) | 2012-11-21 | 2012-11-21 | Servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906681U true CN202906681U (en) | 2013-04-24 |
Family
ID=48127301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206205105U Expired - Fee Related CN202906681U (en) | 2012-11-21 | 2012-11-21 | Servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712032A (en) * | 2018-07-11 | 2018-10-26 | 赵欣 | A kind of production method and special stater iron core press-loading apparatus of high-precision servo motor |
-
2012
- 2012-11-21 CN CN2012206205105U patent/CN202906681U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712032A (en) * | 2018-07-11 | 2018-10-26 | 赵欣 | A kind of production method and special stater iron core press-loading apparatus of high-precision servo motor |
| CN108712032B (en) * | 2018-07-11 | 2023-08-01 | 江西拓又达科技集团有限公司 | Manufacturing method of high-precision servo motor and special stator core press-fitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20201121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |