CN204356512U - The syndeton of motor and machine spindle - Google Patents
The syndeton of motor and machine spindle Download PDFInfo
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- CN204356512U CN204356512U CN201420811870.2U CN201420811870U CN204356512U CN 204356512 U CN204356512 U CN 204356512U CN 201420811870 U CN201420811870 U CN 201420811870U CN 204356512 U CN204356512 U CN 204356512U
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- connector
- fixture block
- mentioned
- bayonet socket
- machine spindle
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Abstract
The utility model provides the syndeton of motor and machine spindle, belongs to sewing machine technique field.It solve short problem in the service life of the bolster in the motor shaft of existing Sewing machines and the syndeton of upper axle.The syndeton of this motor and machine spindle, comprise connector one for fixing with motor output shaft and the connector two for fixing with machine spindle, described connector one has several bayonet socket, described connector two has the fixture block of the quantity protrusion identical with bayonet socket, described fixture block snaps in above-mentioned bayonet socket correspondingly, the both sides of described fixture block have location division and stress surface respectively, described location division place is fixed with metal spring piece, the both sides of this metal spring piece lean with the sidewall of above-mentioned location division and bayonet socket respectively, and stress surface described under the elastic force effect of metal spring piece is resisted against on the sidewall of bayonet socket opposite side.This motor has the advantage of long service life with the syndeton of machine spindle.
Description
Technical field
The utility model belongs to sewing machine technique field, relates to the syndeton of a kind of motor and machine spindle.
Background technology
The output shaft of electrical motor of sewing machine will be connected to transmit power with the spindle of head of sewing machine, and connected mode between the two is mainly divided into three kinds: 1, the output shaft of electrical motor of sewing machine is directly connected with main shaft by securing member; 2, the output shaft of motor is connected by belt transmission with the main shaft of Sewing machines; 3, motor is connected by shaft coupling with main shaft.Wherein, the mode that shaft coupling connects is widely used because it has the high advantage of concentricity.
Such as, Chinese patent discloses the syndeton of a kind of motor shaft of Sewing machines and upper axle [its application number is: 201120203398.0; Its publication number is: CN202415928U], this syndeton comprises motor shaft, upper axle, screw and shaft coupling, the bolster that shaft coupling comprises the first connector, the second connector and is arranged between the first connector and the second connector.Wherein, the first connector is hollow cylinder, and on its sidewall, radial direction is provided with more than one positioning through hole, axially to being outside equipped with the uniform fan-shaped contiguous block of two or more circumference on an end face of hollow cylinder.Second connector is hollow cylinder, and on its sidewall, radial direction is provided with more than one positioning through hole, axially to being outside equipped with the uniform fan-shaped contiguous block of two or more circumference on an end face of hollow cylinder, is formed with bayonet socket between adjacent contiguous block.First connector is identical with the quantity of bayonet socket with the contiguous block of the second connector, and contiguous block to snap onto in corresponding bayonet socket and has certain gap between each contiguous block and the sidewall of corresponding bayonet socket.When this syndeton uses, the first connector and the second connector are connected with motor shaft and upper axle respectively, then the contiguous block on the first connector and the second connector and bayonet fittings are snapped in can realize being in transmission connection.
In addition, bolster adopts elastomeric material to make, its structure be annular solid external cylindrical surface on outward radial be extended with the fan-shaped cushion pad of the twice quantity of contiguous block, a cushion pad is respectively arranged with between each contiguous block and the two side of bayonet socket, for carrying out bumper and absorbing shock, also reduce the production precision of contiguous block and bayonet socket simultaneously.
But, in the cushion pad made because of the rubber course of work that axle rotates on motor drives, be squeezed for a long time and high speed operation of motor time temperature higher, easily cause rubber accelerated ageing, service life is short.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for prior art, proposes a kind of motor of long service life and the syndeton of machine spindle.
The purpose of this utility model realizes by following technical proposal:
The syndeton of motor and machine spindle, comprise connector one for fixing with motor output shaft and the connector two for fixing with machine spindle, described connector one has several bayonet socket, described connector two has the fixture block of the quantity protrusion identical with bayonet socket, described fixture block snaps in above-mentioned bayonet socket correspondingly, it is characterized in that, the both sides of described fixture block have location division and stress surface respectively, described location division place is fixed with metal spring piece, the both sides of this metal spring piece lean with the sidewall of above-mentioned location division and bayonet socket respectively, and stress surface described under the elastic force effect of metal spring piece is resisted against on the sidewall of bayonet socket opposite side.
The syndeton of this motor and machine spindle in use, motor output shaft drives the connector one fixing with it to rotate, driving force is applied by the stress surface on connector a pair connector two, thus band follower link two rotates with connector one, driven the main axis of Sewing machines again by connector two, complete startup.When motor quits work, connector one stops, and connector two is rotated further under effect of inertia, then metal spring piece is extruded distortion, and connector two gradually stops by elastic force effect, serves the effect of bumper and absorbing shock.In this course of work, be subject to driving force during transmission by stress surface, metal spring piece can't be extruded, so, reduce metal spring piece significantly by the frequency repeatedly extruded, extend the service life of metal spring piece.Relative to elastomeric material, be not vulnerable to the impact of temperature in machine operation process the service life of the elastic component that metal material is made, ensure that the service life of metal spring piece.Meanwhile, this syndeton can reduce the production required precision of bayonet socket and fixture block too and play the effect of bumper and absorbing shock.
In the syndeton of above-mentioned motor and machine spindle, described location division is be opened in the straight trough on above-mentioned fixture block sidewall, described metal spring piece is the spring adopting bonding jumper to bend to V-type, a leg on spring in two legs to be arranged in straight trough and with straight trough bottom lean, another leg obliquely to straight trough extension and the outer end of this leg stretch out straight trough and lean with the sidewall of above-mentioned bayonet socket, described straight trough two ends place is also provided with and can carries out spacing axial limit structure to the axial location of straight trough inner spring.Because metal spring piece adopts spring, so, metal spring piece can be designed to V-type and ensure tensile strength too, be squeezed also not fragile, ensure that the service life of metal spring piece.Simultaneously, carry out spacing by straight trough to the circumferential position of metal spring piece, carry out spacing by axial limit structure to the axial location of metal spring piece, V-shaped metal spring piece is made stably to be fixed in straight trough, displacement significantly can not be there is or depart from straight trough, decrease the friction of metal spring piece and straight trough sidewall, ensure that the service life of elastic component.
In the syndeton of above-mentioned motor and machine spindle, described straight trough two ends lay respectively on the end face at above-mentioned fixture block two ends, bottom bayonet socket corresponding with this fixture block on described connector one, there is confined planes one, this confined planes one and the end face of above-mentioned fixture block one end lean and one end of the above-mentioned straight trough of shutoff, described syndeton also comprises the interstage sleeve be cylindrically sheathed on outside machine spindle, one end of this interstage sleeve has confined planes two, and described confined planes two leans and the other end of the above-mentioned straight trough of shutoff with the end face of the other end on above-mentioned fixture block.This syndeton is carried out spacing by straight trough to the circumferential position of metal spring piece, carry out spacing by confined planes one and arranging of confined planes two to the axial location of metal spring piece, V-shaped metal spring piece is made stably to be fixed in straight trough, displacement significantly can not be there is or depart from straight trough, decrease the friction of metal spring piece and straight trough sidewall, ensure that the service life of elastic component.Here, interstage sleeve can directly adopt on head of sewing machine for being set in the outer ring of the bearing outside machine spindle.
In the syndeton of above-mentioned motor and machine spindle, described axial limit structure comprises two projections being divided into above-mentioned straight trough two ends place, and described projection and above-mentioned fixture block are connected as a single entity.The structural design of projection, can make the degree of depth of height lower than straight trough of projection, and the height of projection also can be made identical with the degree of depth of straight trough, and namely the top of projection maintains an equal level mutually with the fixture block sidewall of straight trough opening part, then straight trough forms the shape of a groove.
As another kind of situation, in the syndeton of above-mentioned motor and machine spindle, described location division is be opened in the several locating holes on above-mentioned fixture block sidewall, described metal spring piece comprises flexure strip in arc-shaped and the quantity angle identical with locating hole, described flexure strip is protruding to the sidewall direction of bayonet socket, and described angle and flexure strip are connected as a single entity and angle is plugged in above-mentioned locating hole correspondingly.Similarly, flexure strip also can adopt spring steel to make, and both ensure that its not temperature influence, improves the service life of metal spring piece, can ensure tensile strength again.
In the syndeton of above-mentioned motor and machine spindle, described connector two comprises in circular sleeved part and to be arranged on sleeved part lateral wall and the fixture block radially protruded, described fixture block and above-mentioned sleeved part are connected as a single entity, side relative with connector two on described connector one also has the cavity that can hold above-mentioned sleeved part, and above-mentioned bayonet socket distributes around cavity and is all connected with cavity.Fixture block structure connector two being designed to circular sleeved part and radially outward protruding, make the structure of connector two simpler, axial length after connector two is connected with connector one is shorter, be beneficial to and strengthen the axial dimension of fixture block to increase the volume of metal spring piece according to different situations, improve the service life of metal spring piece further.
In the syndeton of above-mentioned motor and machine spindle, described connector one is connected as a single entity with motor output shaft, and described connector two to be sheathed on machine spindle and to be fixed by securing member with machine spindle.By connector one and motor output shaft integrated, then connector two-way crossed securing member be connected with main shaft, not only easy to connect, the connection between connector one and connector two can be made equally compacter.
Compared with prior art, this motor has the following advantages with the syndeton of machine spindle:
1, between connector one and connector two in transmission process, be that the stress surface of another side contrary with location division on fixture block is subject to driving force all the time, reduce the extruding frequency repeatedly that metal spring piece is subject to, extend the life-span of metal spring piece.
2, metal spring piece adopts spring and does not adopt rubber, the aging acceleration situation that high temperature when avoiding high speed operation of motor causes, and extends the service life of metal spring piece.
3, the above-mentioned effect that can reach reduction machining accuracy and bumper and absorbing shock in the one-sided structure arranging metal spring piece of fixture block equally.
Accompanying drawing explanation
Fig. 1 is the explosive view of the syndeton of this motor and machine spindle.
Fig. 2 is the explosive view of the another kind of technical scheme of syndeton of this motor and machine spindle.
Fig. 3 is the sectional structure schematic diagram at straight trough place in the syndeton of this motor and machine spindle.
In figure, 1, motor output shaft; 2, machine spindle; 3, connector one; 31, bayonet socket; 32, cavity; 33, confined planes one; 4, connector two; 41, fixture block; 41a, location division; 41b, stress surface; 42, metal spring piece; 43, sleeved part; 5, interstage sleeve; 51, confined planes two.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the syndeton of motor and machine spindle comprises connector 1 for fixing with motor output shaft 1 and the connector 24 for fixing with machine spindle 2, connector 1 has several bayonet socket 31, connector 24 has the fixture block 41 of the quantity protrusion identical with bayonet socket 31, fixture block 41 snaps onto in bayonet socket 31 correspondingly.
In the present embodiment, connector 1 and motor output shaft 1 are connected as a single entity, overall in the form of annular discs, the edge of its side relative with connector 24 has four contiguous blocks axially protruded, around formation one cavity 32 between four contiguous blocks, form bayonet socket 31 between adjacent two contiguous blocks, four bayonet sockets 31 are all connected with cavity 32.Connector 24 comprises in circular sleeved part 43 and to be arranged on sleeved part 43 lateral wall and the fixture block 41 radially protruded, fixture block 41 and sleeved part 43 are connected as a single entity, and sleeved part 43 is for be set in outside machine spindle 2 and to be connected mutually by screw and machine spindle 2.When connector 1 is connected with connector 24, sleeved part 43 snaps onto in cavity 32, and fixture block 41 to snap onto correspondingly in bayonet socket 31 and has gap between the sidewall of fixture block 41 and bayonet socket 31.
The both sides of one of them fixture block 41 on connector 24 have location division 41a and stress surface 41b respectively.Wherein, stress surface 41b is a plane, and the sidewall of itself and bayonet socket 31 side leans and can accept the driving force that connector 1 applies it.41a place, location division is fixed with a metal spring piece 42, this metal spring piece 42 is arranged at the gap location between bayonet socket 31 and fixture block 41, the both sides of metal spring piece 42 lean with the sidewall of opposite side on location division 41a and bayonet socket 31 respectively, and are resisted against on bayonet socket 31 sidewall at the elastic force effect lower stress face 41b of metal spring piece 42.
Specifically, location division 41a is opened in the straight trough on fixture block 41 sidewall vertically, metal spring piece 42 is the spring adopting bonding jumper to bend to V-type, a leg on spring in two legs to be arranged in straight trough and with straight trough bottom lean, another leg obliquely to straight trough extension and the outer end of this leg stretch out straight trough and lean with the sidewall of bayonet socket 31.Straight trough two ends place is also provided with and can carries out spacing axial limit structure to the axial location of straight trough inner spring.
In the present embodiment, as shown in Figure 3, straight trough two ends lay respectively on the end face at fixture block 41 two ends, axial limit structure comprises the confined planes 1 be positioned at bottom bayonet socket 31 corresponding with this fixture block 41 on connector 1, this confined planes 1 and the end face of fixture block 41 one end lean and one end of shutoff straight trough, syndeton also comprises the interstage sleeve 5 be cylindrically sheathed on outside machine spindle 2, this interstage sleeve 5 has confined planes 2 51 towards one end of fixture block 41, and this confined planes 2 51 leans and the other end of shutoff straight trough with the end face of the other end on fixture block 41.In the present embodiment, interstage sleeve 5 can be the outer ring of bearing.
The syndeton of this motor and machine spindle in use, motor output shaft 1 rotates together with connector 1, by the sidewall of the bayonet socket 31 on connector 1, the stress surface 41b on connector 24 is applied to the driving force making it rotate, thus band follower link 24 rotates with connector 1, driven the main axis of Sewing machines again by connector 24, complete startup.
When motor quits work, connector 1 stops simultaneously, and connector 24 is rotated further under effect of inertia, then another sidewall of bayonet socket 31 is by metal spring piece 42 crimp, and connector 24 gradually stops by elastic force effect, serves the effect of bumper and absorbing shock.In this course of work, be subject to driving force during transmission by stress surface 41b, metal spring piece 42 can't be extruded, so, reduce metal spring piece 42 significantly by the frequency repeatedly extruded, extend the service life of metal spring piece 42.Meanwhile, this syndeton can reduce the production required precision of bayonet socket 31 and fixture block 41 too and play the effect of bumper and absorbing shock.
Except technique scheme, axial limit structure also can comprise two projections being divided into straight trough two ends place, and two projections are all connected as a single entity with fixture block 41.As shown in Figure 2, location division 41a also can be the several locating holes be opened on fixture block 41 sidewall, metal spring piece 42 can comprise adopt spring steel to make in the flexure strip of arc-shaped and the quantity angle identical with locating hole, flexure strip is protruding to the sidewall direction of bayonet socket 31, and angle and flexure strip are connected as a single entity and angle is plugged in locating hole correspondingly.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (7)
1. the syndeton of motor and machine spindle, comprise connector one (3) for fixing with motor output shaft (1) and the connector two (4) for fixing with machine spindle (2), described connector one (3) has several bayonet socket (31), described connector two (4) has the fixture block (41) of the quantity protrusion identical with bayonet socket (31), described fixture block (41) snaps in above-mentioned bayonet socket (31) correspondingly, it is characterized in that, the both sides of described fixture block (41) have location division (41a) and stress surface (41b) respectively, described location division (41a) place is fixed with metal spring piece (42), the both sides of this metal spring piece (42) lean with the sidewall of above-mentioned location division (41a) and bayonet socket (31) respectively, and stress surface (41b) described under the elastic force effect of metal spring piece (42) is resisted against on the sidewall of bayonet socket (31) opposite side.
2. the syndeton of motor according to claim 1 and machine spindle, it is characterized in that, described location division (41a) is for being opened in the straight trough on above-mentioned fixture block (41) sidewall, described metal spring piece (42) is the spring adopting bonding jumper to bend to V-type, a leg on spring in two legs to be arranged in straight trough and with straight trough bottom lean, another leg obliquely to straight trough extension and the outer end of this leg stretch out straight trough and lean with the sidewall of above-mentioned bayonet socket (31), described straight trough two ends place is also provided with and can carries out spacing axial limit structure to the axial location of straight trough inner spring.
3. the syndeton of motor according to claim 2 and machine spindle, it is characterized in that, described straight trough two ends lay respectively on the end face at above-mentioned fixture block (41) two ends, described axial limit structure comprises the confined planes one (33) being positioned at the upper bayonet socket (31) corresponding with this fixture block (41) bottom of above-mentioned connector one (3), this confined planes one (33) and the end face of above-mentioned fixture block (41) one end lean and one end of the above-mentioned straight trough of shutoff, described syndeton also comprises the interstage sleeve (5) be cylindrically sheathed on outside machine spindle, one end of this interstage sleeve (5) has confined planes two (51), described confined planes two (51) leans and the other end of the above-mentioned straight trough of shutoff with the end face of the upper other end of above-mentioned fixture block (41).
4. the syndeton of motor according to claim 2 and machine spindle, is characterized in that, described axial limit structure comprises two projections being divided into above-mentioned straight trough two ends place, and described projection and above-mentioned fixture block (41) are connected as a single entity.
5. the syndeton of motor according to claim 1 and machine spindle, it is characterized in that, described location division (41a) is for being opened in the several locating holes on above-mentioned fixture block (41) sidewall, described metal spring piece (42) comprises flexure strip in arc-shaped and the quantity angle identical with locating hole, described flexure strip is protruding to the sidewall direction of bayonet socket (31), and described angle and flexure strip are connected as a single entity and angle is plugged in above-mentioned locating hole correspondingly.
6. the motor according to claim 1 or 2 or 3 or 4 or 5 and the syndeton of machine spindle, it is characterized in that, described connector two (4) comprises in circular sleeved part (43) and to be arranged on sleeved part (43) lateral wall and the fixture block (41) radially protruded, described fixture block (41) and above-mentioned sleeved part (43) are connected as a single entity, the upper side relative with connector two (4) of described connector one (3) also has the cavity (32) that can hold above-mentioned sleeved part (43), above-mentioned bayonet socket (31) distributes around cavity (32) and is all connected with cavity (32).
7. the syndeton of motor according to claim 6 and machine spindle, it is characterized in that, described connector one (3) is connected as a single entity with motor output shaft (1), and described connector two (4) is sheathed on machine spindle (2) and goes up and fixed by securing member with machine spindle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811870.2U CN204356512U (en) | 2014-12-18 | 2014-12-18 | The syndeton of motor and machine spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811870.2U CN204356512U (en) | 2014-12-18 | 2014-12-18 | The syndeton of motor and machine spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204356512U true CN204356512U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420811870.2U Withdrawn - After Issue CN204356512U (en) | 2014-12-18 | 2014-12-18 | The syndeton of motor and machine spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204356512U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499212A (en) * | 2014-12-18 | 2015-04-08 | 浙江琦星电子有限公司 | Connecting structure of motor and sewing machine spindle |
| CN104862894A (en) * | 2015-06-03 | 2015-08-26 | 玉环奕友电子有限公司 | Connecting device of overedger main shaft and motor |
-
2014
- 2014-12-18 CN CN201420811870.2U patent/CN204356512U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499212A (en) * | 2014-12-18 | 2015-04-08 | 浙江琦星电子有限公司 | Connecting structure of motor and sewing machine spindle |
| CN104499212B (en) * | 2014-12-18 | 2017-11-21 | 浙江琦星电子有限公司 | The attachment structure of motor and machine spindle |
| CN104862894A (en) * | 2015-06-03 | 2015-08-26 | 玉环奕友电子有限公司 | Connecting device of overedger main shaft and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150527 Effective date of abandoning: 20171121 |
|
| AV01 | Patent right actively abandoned |