CN206799924U - A kind of overcurrent protection structure of sewing machine direct driving motor - Google Patents
A kind of overcurrent protection structure of sewing machine direct driving motor Download PDFInfo
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- CN206799924U CN206799924U CN201720581165.1U CN201720581165U CN206799924U CN 206799924 U CN206799924 U CN 206799924U CN 201720581165 U CN201720581165 U CN 201720581165U CN 206799924 U CN206799924 U CN 206799924U
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- clutch
- disk
- driving motor
- sewing machine
- direct driving
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- 238000009958 sewing Methods 0.000 title claims abstract description 45
- 238000009434 installation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model provides a kind of overcurrent protection structure of sewing machine direct driving motor, belongs to sewing machine technique field.It solves the problems, such as that the spring wear in existing sewing machine direct driving motor overcurrent protection structure is too fast.The overcurrent protection structure of this sewing machine direct driving motor; sewing machine includes main shaft; overcurrent protection structure includes the quiet disk of clutch and clutch Moving plate; there is cylindrical portion on the quiet disk of clutch; clutch Moving plate is connected on the motor shaft of direct driving motor; and there is centre bore on clutch Moving plate; cylindrical portion passes through centre bore; two frictional disks are also arranged with cylindrical portion; one of frictional disk is located between clutch Moving plate and the quiet disk of clutch; brake spring is arranged with cylindrical portion, the card of the quiet disk of clutch is pressed in the card of frictional disk in the presence of brake spring.The overcurrent protection structure of this sewing machine direct driving motor make it that sewing machine work is more stable, and improves the service life of brake spring.
Description
Technical field
The utility model belongs to sewing machine technique field, is related to a kind of overcurrent protection structure of sewing machine direct driving motor.
Background technology
Motor driven main shaft rotation in sewing machine, main shaft drives the action of the functional parts such as shank, wherein if there is card
During phenomena such as line and overload, due to enough could not be separated in time between main shaft and motor, the damage of element part can be caused, is such as revolved
The devices such as shuttle, club, chain, especially shoe machine, bigger because loading, the power of motor of selection is bigger, and machine construction also compares
It is larger, cause necessary depot repair, cost after damaging higher.
In view of the above-mentioned problems, Chinese invention patent application (application number：00106773.7) sewing machine is disclosed, it has one
It is in form the safety clutch of the friction clutch in handwheel region and has one including motor and controller
Position motor and have a position sensor with horn axis connection, in the case where horn axle blocks, controller makes positioning
Motor stops and exports failure alarm signal to the viewing area of operation instrument immediately, and wherein motor passes through safety clutch with horn axle
Realize separation and combine, but friction plate is one in the safety clutch, is resisted against the side of fulcrum bearing, spring is resisted against branch
The opposite side of bearing, realized and combined by the frictional force between friction plate and fulcrum bearing, and rubbed in the course of work of sewing machine
Pad is combined with being required between fulcrum bearing, and the structure of single friction plate causes both combinations unstable, easily in work
Skidded during work, and the relative fulcrum bearing of spring meeting with respect to sliding friction, causes spring wear too fast during both phase separations.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of sewing machine direct driving motor
Overcurrent protection structure, the overcurrent protection structure of the sewing machine direct driving motor make it that sewing machine work is more stable, and improve from
Close the service life of spring.
The purpose of this utility model can be realized by following technical proposal：A kind of overload protection of sewing machine direct driving motor
Structure, sewing machine include main shaft, and the overcurrent protection structure includes the quiet disk of clutch and clutch Moving plate, had on the quiet disk of clutch
Cylindrical portion, and cylindrical portion fixes the one end for being set in main shaft, the clutch Moving plate is connected on the motor shaft of direct driving motor, and from
Closing has centre bore on Moving plate, the cylindrical portion of the quiet disk of clutch passes through the centre bore of clutch Moving plate, and the card of the quiet disk of clutch
It is relative with the card of clutch Moving plate, it is characterised in that two frictional disks to be also arranged with the cylindrical portion, two frictional disk difference position
In the both sides of clutch Moving plate, one of frictional disk is located between clutch Moving plate and the quiet disk of clutch, is also arranged in the cylindrical portion
There is the brake spring acted on another frictional disk, the card of the quiet disk of clutch is pressed on frictional disk in the presence of brake spring
Card on, and cause two frictional disks card be pressed on respectively in two cards of clutch Moving plate.
Brake spring is preset to the elastic force of frictional disk in direct driving motor course of normal operation so that two frictional disks with
Frictional force between clutch Moving plate is certain, and the frictional force is more than the load power that main shaft is subject to, therefore direct driving motor passes through clutch Moving plate
Frictional disk and the quiet disc spins of clutch are driven, realize the rotation of main shaft, and when the load power that main shaft is subject to is excessive and is more than two frictional disks
During frictional force between clutch Moving plate, two frictional disks can skid with respect to clutch Moving plate so that clutch Moving plate is in idle running shape
State, that is, the separation between clutch Moving plate and the quiet disk of clutch is realized, avoid direct driving motor and damaged because of overload, wherein this clutch is moved
Disk both sides are provided with frictional disk, therefore the active force that clutch Moving plate both sides are subject to is symmetrically and evenly, so that in normal work
During combination between clutch Moving plate and the quiet disk of clutch it is more stable, and brake spring is acted on frictional disk, works as main shaft
It is that two frictional disks are relative with respect to clutch Moving plate during overload to slide, so as to avoid brake spring from being worn, improving brake spring makes
It is also more stable with the elastic force of brake spring while the life-span.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, platen is also arranged with the cylindrical portion, it is described
Brake spring is pressed on platen, and the card of platen is pressed in the card of frictional disk in the presence of brake spring.Platen
Card fitting is resisted against in the card of frictional disk, so that the active force of brake spring uniformly passes to frictional disk, and then
So that the frictional force between frictional disk and clutch Moving plate is uniform, so as to more stable in course of normal operation.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, there is outer spiral shell on the periphery wall of the cylindrical portion
Line, adjusting nut is also arranged with cylindrical portion, the adjusting nut coordinates with cylindrical portion screw thread, and the brake spring is positioned at regulation
Between nut and platen, and brake spring is pressed on adjusting nut.It is subject to according to main shaft in sewing machine course of normal operation
Normal load power scope, active force of the brake spring to platen is adjusted by rotating adjusting nut so that in course of normal operation
Clutch Moving plate and the quiet disk stable bond of clutch.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, the brake spring is disk spring, and clutch
At least two, spring, the side of at least two brake spring, which fits, to be folded against, and inside edge one end of the brake spring is supported
It is pressed on adjusting nut end face, outer edge one end is pressed in platen card.The axial direction of disk spring occupies little space, and elastic force
Greatly, and the side of two disk springs fits, further to improve elastic force, so as to reduce the quantity of brake spring, improve steady
Qualitative, outer edge one end of wherein brake spring is resisted against on platen, increases the contact range of brake spring and platen, is improved and is made
Stability firmly.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, stopper slot is offered in the card of the platen,
The brake spring is pressed on the bottom surface of stopper slot.Micro change can also occur for its external diameter during the force variation of brake spring,
It can prevent brake spring from shifting or departing from platen by stopper slot so that overall structure is more stable.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, the quiet disk of the clutch, clutch Moving plate and platen
External diameter is all higher than or the external diameter equal to frictional disk.The card of frictional disk is made full use of, so as to ensure constitutionally stable basis
Above cause compact-sized.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, support is provided with the centre bore of the clutch Moving plate
Set, the support set is set in the cylindrical portion of the quiet disk of clutch, and support set can rotate relative to cylindrical portion.Support set is to clutch
It is supported between Moving plate and cylindrical portion spacing so that Stability Analysis of Structures, and the support set when the quiet disk of clutch and clutch Moving plate depart from
Dallied with respect to cylindrical portion.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, peace is connected with the motor shaft of the direct driving motor
Sabot, there is installation cavity on the side side of the mounting disc, the clutch Moving plate is connected in mounting disc, and the quiet disk of clutch and
One frictional disk is in installation installation cavity.Clutch Moving plate lid is located in mounting disc so that installation cavity is closed, by the quiet disk of clutch and
Frictional disk is arranged in installation cavity, avoids foreign matter from having an impact the junction between the quiet disk of clutch and clutch Moving plate, improves knot
Structure stability.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, contiguous block one, institute are fixed with the mounting disc
State and contiguous block two is fixed with the motor shaft of direct driving motor, the contiguous block one is coordinated by sliding plug with contiguous block two and is connected
Connect, and the glide direction of contiguous block one is identical with the axial direction of main shaft.Contiguous block one is to be slidably matched with contiguous block two, therefore both
Between connection axial force will not be produced to clutch Moving plate, and then cause disengaging between clutch Moving plate and the quiet disk of clutch and
With reference to more accurate.
In the overcurrent protection structure of above-mentioned sewing machine direct driving motor, the contiguous block one and contiguous block two are in cylinder
Shape, there is the connecting portion of column, the contiguous block one is fixed and is set on connecting portion, described on the another side of the mounting disc
Contiguous block two is fixed and is set on the motor shaft of direct driving motor, circumferentially has some block insert on the end face of the contiguous block one
Socket part, some inserting grooves, end face and the contiguous block two of the contiguous block one are circumferentially offered on the periphery wall of the contiguous block two
End face it is relative, and some plug divisions distinguish sliding plug in some inserting grooves.So that contiguous block one is circumferential with contiguous block two
It is fixed.
Compared with prior art, the overcurrent protection structure of this sewing machine direct driving motor has advantages below：
1st, because this clutch Moving plate both sides are provided with frictional disk, therefore the active force that clutch Moving plate both sides are subject to is symmetrically equal
It is even, so that the combination in course of normal operation between clutch Moving plate and the quiet disk of clutch is more stable.
2nd, it is that two frictional disks are relative with respect to clutch Moving plate when main shaft overloads because brake spring is acted on frictional disk
Slide, so as to avoid brake spring from being worn, while improving brake spring service life, the elastic force of brake spring is also more
It is stable.
3rd, because the side of two disk springs fits, further to improve elastic force, so as to reduce the number of brake spring
Amount, stability is improved, outer edge one end of wherein brake spring is resisted against on platen, contact model of the increase brake spring with platen
Enclose, improve the stability of active force.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the overcurrent protection structure of sewing machine direct driving motor.
Fig. 2 is the structure sectional view of the overcurrent protection structure of sewing machine direct driving motor.
Fig. 3 is the schematic enlarged-scale view at A in Fig. 2.
Fig. 4 is the dimensional structure diagram connected between direct driving motor and mounting disc.
In figure, 1, main shaft；2nd, direct driving motor；21st, contiguous block two；211st, inserting groove；3rd, the quiet disk of clutch；31st, cylindrical portion；4、
Clutch Moving plate；41st, centre bore；42nd, support set；5th, mounting disc；51st, installation cavity；52nd, connecting portion；53rd, contiguous block one；531st, insert
Socket part；6th, frictional disk；7th, brake spring；8th, adjusting nut；9th, platen；91st, stopper slot.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, a kind of overcurrent protection structure of sewing machine direct driving motor, sewing machine includes main shaft 1 and direct driving motor
2.As shown in Fig. 2 overcurrent protection structure includes the quiet disk 3 of clutch and clutch Moving plate 4, there is cylindrical portion 31, tubular on the quiet disk 3 of clutch
Portion 31 is set in one end of main shaft 1 and fixed by screw lock, and mounting disc 5 is connected with the motor shaft of direct driving motor 2, installation
There is installation cavity 51, clutch Moving plate 4 is connected in mounting disc 5 by screw, and mounting disc 5 can seal on the side side of disk 5
The installation cavity 51 of lid mounting disc 5, centre bore 41 is offered in the center of clutch Moving plate 4, and cylindrical portion 31 passes through centre bore 41
And stretch into installation cavity 51 so that the quiet disk 3 of clutch is located in installation cavity 51, and the card of the quiet disk 3 of clutch and the disk of clutch Moving plate 4
Face is relative, and two frictional disks 6 are also arranged with cylindrical portion 31, and two frictional disk 6 is located at the both sides of clutch Moving plate 4 respectively, wherein one
Individual frictional disk 6 is located in installation cavity 51, and between clutch Moving plate 4 and the quiet disk 3 of clutch.Regulation is also arranged with cylindrical portion 31
8, two brake springs 7 of nut and platen 9, there is external screw thread, adjusting nut 8 and cylindrical portion 31 on the periphery wall of cylindrical portion 31
Threaded connection, one end of brake spring 7 are pressed on adjusting nut 8, and the other end is pressed on platen 9 so that the card of platen 9
It is pressed in the card of another frictional disk 6, therefore in the presence of brake spring 7, the card of the quiet disk 3 of clutch is pressed on installation
In the card of frictional disk 6 in chamber 51, and the card of two frictional disks 6 is pressed in two cards of clutch Moving plate 4 respectively, in this way,
Under the active force of brake spring 7 of setting clutch Moving plate 4 by frictional force drive the quiet disk 3 of clutch rotate, and main shaft 1 overload when from
Moving plate 4 is closed then to slide relatively with two frictional disks 6.
Specifically, with reference to shown in Fig. 3, it is provided with support set 42 in the centre bore 41 of clutch Moving plate 4, the support set 42 can be with
It is fixedly connected with clutch Moving plate 4, and support set 42 is set in the cylindrical portion 31 of the quiet disk 3 of clutch, and support set 42 can be relative
Cylindrical portion 31 rotates, spacing to being supported between clutch Moving plate 4 and cylindrical portion 31 by support set 42, certain cylindrical portion 31 with
The relative periphery wall of the inwall of support set 42 is straight tube wall, and the card of the two frictional disks 6 both ends end face phase with support set 42 respectively
Recline, it is spacing so as to be carried out to support set 42.The external diameter of the quiet disk 3 of clutch and platen 9 is equal to the external diameter of frictional disk 6, and in order to
The connection of clutch Moving plate 4 and mounting disc 5 is realized, the external diameter of clutch Moving plate 4 is more than the external diameter of frictional disk 6, and then makes full use of and rub
The card of disk 6 is wiped, there is the conical surface in the quiet disk 3 of the clutch card opposite with frictional disk 6, and have between the bottom surface of installation cavity 51
Gap.Brake spring 7 is circular disk spring, and the side of two brake springs 7, which fits, to be folded against, and is opened in the card of platen 9
Provided with stopper slot 91, inside edge one end of brake spring 7 is pressed on the end face of adjusting nut 8, and outer edge one end is pressed on spacing
On the bottom surface of groove 91, and there is gap between the cell wall of the outer edge of brake spring 7 and stopper slot 91.
With reference to shown in Fig. 4, there is the connecting portion 52 of column on the side of mounting disc 5, fixed cover is provided with cylinder on connecting portion 52
The contiguous block 1 of shape, fixed cover is provided with the contiguous block 2 21 of tubular on the motor shaft of direct driving motor 2, wherein contiguous block 1
Circumferentially there are some block plug divisions 531 on end face, some inserting grooves are circumferentially offered on the periphery wall of contiguous block 2 21
211, the end face of contiguous block 1 is relative with the end face of contiguous block 2 21, and sliding plug is distinguished some in some plug divisions 531
In inserting groove 211, and the width of inserting groove 211 is then more than the width of plug division 531, avoids producing excessive friction between the two
Power.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used the terms such as main shaft 1, direct driving motor 2, contiguous block 2 21 herein, it is not precluded from using it
The possibility of its term.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It
Be construed to any additional limitation and all disagreed with the utility model spirit.
Claims (10)
1. a kind of overcurrent protection structure of sewing machine direct driving motor, sewing machine includes main shaft (1), and the overcurrent protection structure includes
The quiet disk of clutch (3) and clutch Moving plate (4), there is cylindrical portion (31) on the quiet disk of clutch (3), and cylindrical portion (31) fixation is arranged
In one end of main shaft (1), the clutch Moving plate (4) is connected on the motor shaft of direct driving motor (2), and is had on clutch Moving plate (4)
There is centre bore (41), the cylindrical portion (31) of the quiet disk of clutch (3) passes through the centre bore (41) of clutch Moving plate (4), and clutch is quiet
The card of disk (3) is relative with the card of clutch Moving plate (4), it is characterised in that is also arranged with two frictions on the cylindrical portion (31)
Disk (6), two frictional disk (6) are located at the both sides of clutch Moving plate (4) respectively, and one of frictional disk (6) is located at clutch Moving plate (4)
Between the quiet disk of clutch (3), the brake spring acted on another frictional disk (6) is also arranged with the cylindrical portion (31)
(7), the card of the quiet disk of clutch (3) is pressed in the card of frictional disk (6) in the presence of brake spring (7), and make it that two rub
The card for wiping disk (6) is pressed in two cards of clutch Moving plate (4) respectively.
2. the overcurrent protection structure of sewing machine direct driving motor according to claim 1, it is characterised in that the cylindrical portion
(31) platen (9) is also arranged with, the brake spring (7) is pressed on platen (9), pressed in the presence of brake spring (7)
The card of disk (9) is pressed in the card of frictional disk (6).
3. the overcurrent protection structure of sewing machine direct driving motor according to claim 2, it is characterised in that the cylindrical portion
(31) there is external screw thread on periphery wall, adjusting nut (8) is also arranged with cylindrical portion (31), the adjusting nut (8) and cylinder
Shape portion (31) screw thread coordinates, and the brake spring (7) is located between adjusting nut (8) and platen (9), and brake spring (7) supports
It is pressed on adjusting nut (8).
4. the overcurrent protection structure of sewing machine direct driving motor according to claim 3, it is characterised in that the brake spring
(7) it is disk spring, and brake spring (7) at least two, the side of at least two brake spring (7), which fits, to be folded against,
Inside edge one end of the brake spring (7) is pressed on adjusting nut (8) end face, and outer edge one end is pressed on platen (9) disk
On face.
5. the overcurrent protection structure of the sewing machine direct driving motor according to Claims 2 or 3 or 4, it is characterised in that the pressure
Stopper slot (91) is offered in the card of disk (9), the brake spring (7) is pressed on the bottom surface of stopper slot (91).
6. the overcurrent protection structure of the sewing machine direct driving motor according to Claims 2 or 3 or 4, it is characterised in that it is described from
The external diameter for closing quiet disk (3), clutch Moving plate (4) and platen (9) is all higher than or the external diameter equal to frictional disk (6).
7. the overcurrent protection structure of the sewing machine direct driving motor according to Claims 2 or 3 or 4, it is characterised in that it is described from
Close in the centre bore (41) of Moving plate (4) and be provided with support set (42), the support set (42) is set in the cylindrical portion of the quiet disk of clutch (3)
(31) on, and support set (42) can rotate relative to cylindrical portion (31).
8. the overcurrent protection structure of the sewing machine direct driving motor according to Claims 2 or 3 or 4, it is characterised in that described straight
Drive and be connected with mounting disc (5) on the motor shaft of motor (2), there is installation cavity (51), institute on the side side of the mounting disc (5)
State clutch Moving plate (4) to be connected in mounting disc (5), and the quiet disk of clutch (3) and a frictional disk (6) are positioned at installation installation cavity (51)
It is interior.
9. the overcurrent protection structure of sewing machine direct driving motor according to claim 8, it is characterised in that the mounting disc
(5) contiguous block one (53) is fixed with, contiguous block two (21), the connection are fixed with the motor shaft of the direct driving motor (2)
Block one (53) is coordinated by sliding plug with contiguous block two (21) and is connected, and the glide direction and main shaft of contiguous block one (53)
(1) axial direction is identical.
10. the overcurrent protection structure of sewing machine direct driving motor according to claim 9, it is characterised in that the contiguous block
One (53) and contiguous block two (21) are cylindrical in shape, and have the connecting portion (52) of column, institute on the another side of the mounting disc (5)
State contiguous block one (53) fixation to be set on connecting portion (52), contiguous block two (21) fixation is set in direct driving motor (2)
On motor shaft, circumferentially there is some block plug divisions (531), the contiguous block two on the end face of the contiguous block one (53)
(21) some inserting grooves (211), end face and the contiguous block two (21) of the contiguous block one (53) are circumferentially offered on periphery wall
End face it is relative, and some plug divisions (531) respectively sliding plug in some inserting grooves (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720581165.1U CN206799924U (en) | 2017-05-23 | 2017-05-23 | A kind of overcurrent protection structure of sewing machine direct driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720581165.1U CN206799924U (en) | 2017-05-23 | 2017-05-23 | A kind of overcurrent protection structure of sewing machine direct driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206799924U true CN206799924U (en) | 2017-12-26 |
Family
ID=60741765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720581165.1U Expired - Fee Related CN206799924U (en) | 2017-05-23 | 2017-05-23 | A kind of overcurrent protection structure of sewing machine direct driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206799924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024404A (en) * | 2021-11-08 | 2022-02-08 | 浙江鼎琛起重设备科技有限公司 | Regulation formula clutch motor of area protection |
| CN114808406A (en) * | 2022-05-11 | 2022-07-29 | 安徽金帅洗衣机有限公司 | Direct motor driving mechanism of clothes dryer |
-
2017
- 2017-05-23 CN CN201720581165.1U patent/CN206799924U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024404A (en) * | 2021-11-08 | 2022-02-08 | 浙江鼎琛起重设备科技有限公司 | Regulation formula clutch motor of area protection |
| CN114808406A (en) * | 2022-05-11 | 2022-07-29 | 安徽金帅洗衣机有限公司 | Direct motor driving mechanism of clothes dryer |
| CN114808406B (en) * | 2022-05-11 | 2023-08-22 | 安徽金帅洗衣机有限公司 | Direct motor driving mechanism of clothes dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |