CN201414039Y - Direct-drive motor for sewing machine - Google Patents
Direct-drive motor for sewing machine Download PDFInfo
- Publication number
- CN201414039Y CN201414039Y CN2009201556635U CN200920155663U CN201414039Y CN 201414039 Y CN201414039 Y CN 201414039Y CN 2009201556635 U CN2009201556635 U CN 2009201556635U CN 200920155663 U CN200920155663 U CN 200920155663U CN 201414039 Y CN201414039 Y CN 201414039Y
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- China
- Prior art keywords
- sewing machine
- motor
- rotor
- motor stator
- direct
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- Expired - Fee Related
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Abstract
The utility model discloses a direct-drive motor for a sewing machine, aiming at providing a solution of a direct-drive brushless direct current motor which has a simple structure, low cost and high efficiency, produces low noise and is suitable for various novel and original sewing machines. The direct-drive motor comprises a motor stator, a motor rotor, a motor casing, a connecting part, a sewing machine body, a sewing machine spindle and a hand wheel. The motor stator is fixed on the sewing machine body by a mounting hole. The motor rotor can act as the motor casing and the hand wheel simultaneously, and be supported at the outer side of the motor stator in a freely-rotatable manner and fixed on the sewing machine spindle by the connecting part.
Description
Technical field
The utility model relates to a kind of brushless electric machine, a kind of specifically motor that is applicable to the work of direct driving sewing machine.
Background technology
The existing sewing machine drive motors that is used for mainly contains two classes: a class is an external hanging type clutch AC induction motor, and another kind of is the direct-drive type direct current machine.
The characteristics of external hanging type motor are on motor and the sewing machine belt pulley to be housed, by belt transmission power; Start-stop and the speed of leaning on control setting to control motor, thereby the start-stop and the speed of control sewing machine at the brake gear and the friction clutch of motor internal.Its weak point is: lean on belt transmission, and the easy pollution clothes of the powder that power transmission efficiency is low and belt comes off in running, there is potential safety hazard in exposed belt; Because alternating current machine is not suitable for the frequent start-stop of sewing machine, so move all the time in the start-stop gap, so not only loss electric energy but also produced noise has influenced operator's health; The complex structure of motor, the consumable accessory multidimensional is protected the maintenance cost height.
Begin in recent years to occur directly driving sewing machine in order to address these problems with direct current machine, for example, Chinese patent publication number CN2687151Y, open day on 02 23rd, 2005, denomination of invention was directly to drive the sewing machine of going up axle.This application discloses a direct current machine and has been used for the scheme that sewing machine directly drives, though the new problem that has solved the some shortcomings of external hanging type motor but brought is: sewing machine body right side wall to the left the concave position of direction motor is installed, motor places the space of a sealing like this, the heat that motor produces is not easy to distribute and causes and electrical fault reduce electrical machinery life; Require motor shaft and machine spindle concentric, shaft joint is again at internal body, and to having improved processing technology, motor is installed complicated, the cost height like this; Moreover the body of sewing machine and motor want otherwise designed, can only be used for model newly developed, can't be used for a large amount of existing models that exist on the original market.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, inefficient height of cost is provided, the directly brshless DC motor scheme of driving of all kinds of novel sewing machines and original various sewing machine that is applicable to of low noise.
In order to achieve the above object, the utility model adopts following technical proposals:
The utility model comprises motor stator, rotor, motor housing, connecting portion, sewing machine body, machine spindle, handwheel, it is characterized in that described motor stator is fixed on the sewing machine body by installing hole; Described rotor is motor housing, handwheel simultaneously; Described rotor can be supported on the described motor stator outside with rotating freely, is fixed on the machine spindle by connecting portion.
For described motor stator is fixed on the sewing machine body, above-mentioned motor stator is provided with 2 to 6 installing holes.
Above-mentioned rotor is a glass type, is wrapped in the outside of described motor stator, and rotor has played the effect of the shell of motor, but manual operation has simultaneously replaced handwheel.
For described rotor is fixed on the machine spindle, bottom at above-mentioned rotor is provided with flange, be used for being connected, be fixed on the machine spindle or and be connected by exempting from the key axle bush again, and fix with screw with machine spindle by taper sheath with the flange of described connecting portion.
The utility model is optimized existing motor at the characteristics in sewing machine field, adopt the outer rotor direct driving structure, parts such as the indispensable housing of existing motor, axle, bearing, radiator fan, belt pulley, shaft joint, handwheel have been saved, only adopt rotor, stator and link, reduced manufacturing cost; Because adopted the open relatively structure of a side, the air flows that rotor rotation drives can distribute the heat that motor produces very soon, has improved the reliability of motor; Adopted outer-rotor structure can export bigger torque, outstanding energy-saving effect has been arranged with respect to the similar inner rotor motor of same diameter; Adopt succinct rational structure to be applicable to that the sewing machine of various new models also can be applicable to the original various sewing machine in market, can replace the external hanging type motor; There are not the easily worn parts such as bearing, clutch and friction plate of plug-in motor to reduce the maintenance maintenance cost, the operational environment that reduced noise improvement; Adopted dc brushless motor to substitute traditional AC induction motor, controllability is good, instant stopping, and the efficient height can realize that high rotating speed can adapt to the needs of Modern High-Speed sewing machine, can produce good social benefit and economic benefit.
Description of drawings
Fig. 1 is one of the present utility model and in order to avoid the key axle bush is the embodiment of connecting portion generalized section is installed.
Fig. 2 is that of the present utility model another is that the embodiment of connecting portion installs generalized section with the taper sheath.
Fig. 3 is an embodiment schematic diagram of motor stator described in the utility model.
Fig. 4 is an embodiment schematic diagram of the flange in the bottom of rotor described in the utility model.
In the accompanying drawing: 1-sewing machine body, the 2-motor stator, the 3-rotor, 4-motor stator installing hole, 5-are exempted from key axle bush connecting hole, and 6-machine spindle, 7-are exempted from key axle bush connecting portion, 8-rotor connecting hole, 9-holding screw, 10-taper sheath connecting portion.
Embodiment
Below in conjunction with Figure of description and embodiment the utility model is described in further detail:
In the embodiment shown in fig. 1, motor stator 2 is processed with two to six motor stator installing holes 4 in position, present embodiment is in order to adapt to the motor stator installing holes 4 that designed three 90 degree of being separated by on the motor stator as shown in Figure 3 being applied on the standard deck GC6 series sewing machine, silk hole in that processing of sewing machine body 1 lug boss position and motor stator installing hole 4 adapt is fixed on the sewing machine body 1 with key screw motor stator 2; Exempt from the flange of key axle bush connecting portion 7 and be connected by rotor connecting hole 8 usefulness screws with as shown in Figure 4 rotor 3 flange in the bottom, the other end will be exempted from key axle bush connecting portion 7 and be connected on the machine spindle 6 by being exempted from key axle bush connecting hole 5 usefulness screws.
In embodiment illustrated in fig. 2, motor stator 2 is processed with two to six motor stator installing holes 4 in position, present embodiment has designed the motor stator installing hole 4 of three 120 degree of being separated by on motor stator 2, silk hole in that processing of sewing machine body 1 lug boss position and motor stator installing hole 4 adapt is fixed to motor stator 2 on the sewing machine body 1 with key screw; The flange of taper sheath connecting portion 10 is connected by rotor connecting hole 8 usefulness screws with 3 flange in the bottom of rotor as shown in Figure 4, and the other end is connected on the machine spindle 6 by taper sheath connecting portion 10, and is fixing with holding screw 9.
Claims (6)
1, a kind of sewing machine direct driving motor comprises motor stator, rotor, motor housing, connecting portion, sewing machine body, machine spindle, handwheel, it is characterized in that described motor stator is fixed on the sewing machine body by installing hole; Described rotor is motor housing, handwheel simultaneously; Described rotor can be supported on the described motor stator outside with rotating freely, is fixed on the machine spindle by connecting portion.
2, sewing machine direct driving motor according to claim 1 is characterized in that, described motor stator has 2 to 6 installing holes.
3, sewing machine direct driving motor according to claim 1 is characterized in that, described rotor is a glass type.
4, sewing machine direct driving motor according to claim 3 is characterized in that, the bottom of described rotor is provided with flange.
According to claim 1 or 4 described sewing machine direct driving motors, it is characterized in that 5, described connecting portion one end is connected with rotor by flange, the other end is fixed on the machine spindle by exempting from the key axle bush.
According to claim 1 or 4 described sewing machine direct driving motors, it is characterized in that 6, described connecting portion one end is connected with rotor by flange, the other end is connected with machine spindle by taper sheath, and fixes with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201556635U CN201414039Y (en) | 2009-06-02 | 2009-06-02 | Direct-drive motor for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201556635U CN201414039Y (en) | 2009-06-02 | 2009-06-02 | Direct-drive motor for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414039Y true CN201414039Y (en) | 2010-02-24 |
Family
ID=41715919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201556635U Expired - Fee Related CN201414039Y (en) | 2009-06-02 | 2009-06-02 | Direct-drive motor for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201414039Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733114A (en) * | 2012-04-01 | 2012-10-17 | 新杰克缝纫机股份有限公司 | Normal sewing machine with motor electric control integrated structure |
| CN104319919A (en) * | 2014-09-30 | 2015-01-28 | 洛阳市施凯信机电科技有限公司 | Motor for sewing machine |
-
2009
- 2009-06-02 CN CN2009201556635U patent/CN201414039Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733114A (en) * | 2012-04-01 | 2012-10-17 | 新杰克缝纫机股份有限公司 | Normal sewing machine with motor electric control integrated structure |
| CN104319919A (en) * | 2014-09-30 | 2015-01-28 | 洛阳市施凯信机电科技有限公司 | Motor for sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Huamin Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Huamin Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20100602 |