CN201126990Y - Hollow shaft non-shaft-extension permanent magnetism AC servomotor - Google Patents
Hollow shaft non-shaft-extension permanent magnetism AC servomotor Download PDFInfo
- Publication number
- CN201126990Y CN201126990Y CNU2007201263283U CN200720126328U CN201126990Y CN 201126990 Y CN201126990 Y CN 201126990Y CN U2007201263283 U CNU2007201263283 U CN U2007201263283U CN 200720126328 U CN200720126328 U CN 200720126328U CN 201126990 Y CN201126990 Y CN 201126990Y
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- China
- Prior art keywords
- shaft
- motor
- utility
- axle sleeve
- housing
- 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
Hollow shafting permanent magnetic alternating current servomotor without shaft extension comprises a casing and a front end cover arranged on the end of the casing. The casing is further provided with a shaft that is connected with the motor. The shaft is incurvated to an external end surface of the front end cover. The shaft is provided with a bearing and is composed of a shaft sleeve that is connected with the motor. A cavity that is connected with external side is left in the front end of the shaft sleeve. The utility model is a hollow shafting permanent magnetic alternating current servomotor without shaft extension, which reduces the axial size of the motor. Thus the structure of the motor is more compact; the utility model reduces the weight of the motor, saves cost of the motor and is more convenient to mount with the system without a couple, which reduces the axial size of the entire system.
Description
Technical field
The utility model relates to a kind of servomotor, and characteristics relate to a kind of hollow shaft does not have the shaft extension permanent magnetic Ac servo motor.
Background technology
The sewing machine definite purpose motor adopts permanent magnetic Ac servo motor, be equipped with high-precision resolver or photoelectric encoder, can realize position signalling is carried out the control of digital vector, it is complementary with the AC servo driver that adopts novel electric power electric device, application-specific integrated circuit (ASIC) and modern control algolithm, the digital drive system of forming the novel high-performance electromechanical integration, have that steady-state behaviour is good, reliability is high, low noise advantages, can accurately realize backstitching, reinforce high accuracy controls such as seam.
The general employing has the shaft extension structure on the tradition sewing machine dedicated servo electric motor structure, and this structure promptly has shaft extension at the front end of motor, and the length of shaft extension and diameter equidimension are by motor bearing capacity and system's installation requirement decision.When the motor of this kind structure and machine spindle are installed, need to realize, and it is fastening to need that jackscrew is installed by shaft coupling.Because motor has the existence of shaft extension, makes motor have following weak point: 1, the whole axial dimension of motor increases; 2, motor weight increases; 3, motor cost increases; 4, need to realize coaxial installation with system, not only increase the axial dimension of whole system, increase mounting complexity simultaneously by shaft coupling.Jackscrew easily skids after working long hours in addition, reduces system reliability.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of simple in structure, easy for installation, and the hollow shaft of dependable performance does not have the shaft extension permanent magnetic Ac servo motor.
For achieving the above object, the technical solution adopted in the utility model is: the front end housing that comprises housing and be arranged on shell end, in housing, also be provided with the rotating shaft that is connected with motor, the outer face 1mm of the recessed front end housing of this rotating shaft, in rotating shaft, be set with bearing, said rotating shaft is made up of with the interior axle that is connected with motor axle sleeve, and also is reserved with a cavity that is connected with peripheral hardware at the front end of axle sleeve.
Axle passes through the key connection with axle sleeve in of the present utility model, and the diameter of interior axle is less than the internal diameter of axle sleeve.
Because the utility model is that a kind of hollow shaft does not have the shaft extension permanent magnetic Ac servo motor,, make electric machine structure compact more because no shaft extension has shortened the motor axial dimension; Reduced motor weight; Saved motor cost; Install more simple and convenient reliably with system, need not shaft coupling, shortened the axial dimension of whole system.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is structural representation sieve of the utility model rotating shaft 4;
Fig. 3 is the utility model and system's scheme of installation.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to Fig. 1, the front end housing 2 that the utility model comprises housing 1 and is arranged on housing 1 end also is provided with the rotating shaft 4 that is connected with motor in housing 1, and the outer face 1mm of these rotating shaft 4 recessed front end housings 2 is set with bearing 3 in rotating shaft 4.
Referring to Fig. 2, rotating shaft 4 of the present utility model is made up of with the interior axle 6 that is connected with motor axle sleeve 5, and also is reserved with a cavity that is connected with peripheral hardware 8 at the front end of axle sleeve 5, and interior axle 6 passes through key 7 connections with axle sleeve 5, and the diameter of interior axle 6 is less than the internal diameter of axle sleeve 5.
Referring to Fig. 3, in use machine spindle 9 is inserted in the cavity 8 of axle sleeve 5 front ends reservation, connect by key then, starter motor, motor drive axle sleeve 5 by interior axle 6 and rotate, and rotate thereby drive machine spindle 9.
The utility model has the shaft extension structural electromotor to compare with the installation of system with tradition, and is simple in structure, peace Dress is convenient. Need not by shaft coupling, only need machine spindle is pushed in the installation hollow shaft of motor namely Can.
Claims (2)
1, a kind of hollow shaft does not have the shaft extension permanent magnetic Ac servo motor, the front end housing (2) that comprises housing (1) and be arranged on housing (1) end, it is characterized in that: in housing (1), also be provided with the rotating shaft (4) that is connected with motor, the outer face 1mm of the recessed front end housing (2) of this rotating shaft (4), in rotating shaft (4), be set with bearing (3), said rotating shaft (4) is made up of with the interior axle (6) that is connected with motor axle sleeve (5), and also is reserved with a cavity that is connected with peripheral hardware (8) at the front end of axle sleeve (5).
2, hollow shaft according to claim 1 does not have the shaft extension permanent magnetic Ac servo motor, it is characterized in that: axle (6) passes through key (7) connection with axle sleeve (5) in said, and the diameter of interior axle (6) is less than the internal diameter of axle sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201263283U CN201126990Y (en) | 2007-11-09 | 2007-11-09 | Hollow shaft non-shaft-extension permanent magnetism AC servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201263283U CN201126990Y (en) | 2007-11-09 | 2007-11-09 | Hollow shaft non-shaft-extension permanent magnetism AC servomotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126990Y true CN201126990Y (en) | 2008-10-01 |
Family
ID=40000454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201263283U Expired - Fee Related CN201126990Y (en) | 2007-11-09 | 2007-11-09 | Hollow shaft non-shaft-extension permanent magnetism AC servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126990Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768664A (en) * | 2019-01-29 | 2019-05-17 | 北京大圣格尔冶金设备有限公司 | A kind of hollow shaft motor |
-
2007
- 2007-11-09 CN CNU2007201263283U patent/CN201126990Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768664A (en) * | 2019-01-29 | 2019-05-17 | 北京大圣格尔冶金设备有限公司 | A kind of hollow shaft motor |
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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: 20081001 Termination date: 20131109 |