CN201839130U - Connection structure of motor shaft and upper shaft of sewing machine - Google Patents
Connection structure of motor shaft and upper shaft of sewing machine Download PDFInfo
- Publication number
- CN201839130U CN201839130U CN2010205522147U CN201020552214U CN201839130U CN 201839130 U CN201839130 U CN 201839130U CN 2010205522147 U CN2010205522147 U CN 2010205522147U CN 201020552214 U CN201020552214 U CN 201020552214U CN 201839130 U CN201839130 U CN 201839130U
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- motor shaft
- connector
- positioning
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- projection
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Abstract
The utility model belongs to the technical field of sewing machines, and relates to a connection structure of a motor shaft and an upper shaft of a sewing machine, comprising the motor shaft, the upper shaft, screws and a coupler, wherein the coupler consists of a bulge of a first connecting piece, a flexible buffer part arranged on a groove, and a small groove formed on the flexible buffer part; another bulge on a second connecting piece is clamped in the small groove of the flexible buffer part, or the coupler is formed by being provided with locating through holes, the locating through holes are arranged on a hollow cylinder body radially, correspond to the installation positions of the motor shaft and the upper shaft, and equal to the motor shaft and the upper shaft in number; and the motor shaft and the upper shaft are connected by the coupler and the screws through the locating through holes. The advantages are as follows: the connection structure is simple, has low noise, small vibration and small volume, is electricity-saving; as the requirement for concentricity that the motor shaft and the upper shaft are connected is low, the impact resistance is good, the fit clearance is good, the moment of installation is lighter, and the manufacturing and assembling are easy.
Description
Technical field
The utility model belongs to the sewing machine technique field, refers in particular to a kind of syndeton of motor shaft and last axle of sewing machine.
Background technology
At present, the motor shaft of sewing machine (being the power output shaft of motor) has two kinds with the syndeton of last axle: a kind of is that motor is given last axle by belt pulley with transmission of power, another kind is that motor is by intermeshing shaft joint and last axle transferring power, it is direct drive sewing machine, the former is because noise is big, vibrations are big, the power consumption height, and electric machine external is by the belt transferring power, therefore it is bulky, external form is attractive in appearance inadequately, there is the be meshing with each other complex structure of transferring power of gear in the latter, the concentricity requirement height produces a cost high-technology difficult problem.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, motor shaft of noise is little, vibration is little, power saving, volume are little, motor shaft and concentricity requirement that last axle is connected are low sewing machine and last syndeton.
The purpose of this utility model is achieved in that
The syndeton of the motor shaft of sewing machine and last axle includes motor shaft, goes up axle, screw and shaft coupling, and described shaft coupling comprises first connector, flexible buffering piece and second connector,
The first above-mentioned connector is: the side at a hollow cylinder radially is provided with more than one positioning through hole, opposite side is provided with the necking part that necking down forms, axially be provided with two or four grooves that circumferential uniform end faces are the fan ring surface in the outer of the hollow cylinder of necking part with interior, be formed with projection between the adjacent groove;
Above-mentioned flexible buffering piece is: with the groove floor on first connector, the upper surface of projection and the integrated supple buffer layer that the left and right side fits, supple buffer layer is formed with little groove between the left and right side of projection;
The second above-mentioned connector is: have and the little groove of the flexible buffering piece projection that cooperates of clamping mutually in that the outer surface of a hollow cylinder is one-body molded, projection and with hollow cylinder that projection links to each other on radially be provided with positioning through hole;
With screw be fixed on motor shaft by the positioning through hole on second connector or go up axle the installation position or on, with screw by the positioning through hole on first connector be fixed on axle or the installation position of motor shaft or on, flexible buffering piece is connected on the groove and projection of first connector, and the projection of second connector is connected in the little groove of flexible buffering piece.
The positioning through hole that is provided with on the first above-mentioned connector has two or four, and the positioning through hole that is provided with on second connector has two or four.
The thickness of the supple buffer layer on the above-mentioned left and right side that is fitted in first connector 〉=the be fitted in thickness of the groove floor and the supple buffer layer on the projection upper surface of first connector.
Above-mentioned shaft coupling is: the side at a hollow cylinder is provided with annular boss formation large-diameter portion and minor diameter part, radially be provided with on the minor diameter part motor shaft with on the motor shaft positioning through hole that equates of corresponding, the quantity in installation position of axle and on the axle positioning through hole, motor shaft is connected with shaft coupling, will goes up by last positioning through hole with screw and spool be connected with shaft coupling by the motor shaft positioning through hole with screw.
Above-mentioned motor shaft positioning through hole and last axle positioning through hole have two respectively.
The inwall of above-mentioned positioning through hole is provided with the internal thread that matches for external screw thread on the screw.
The outstanding compared to existing technology advantage of the utility model is:
1, of the present utility model simple in structure, noise is little, vibration is little, power saving, volume are little, motor shaft is low with the concentricity requirement that last axle is connected;
Torsion excessive when 2, the flexible buffering piece of following embodiment 1,2 described shaft couplings of the present utility model can be alleviated electric motor starting impacts, and reduces noise, reduces and collides the parts damage that causes;
3, the outer 56 on the necking part 51 on the embodiment of stating 1,2 described first connectors of the present utility model can protect flexible buffering piece can outwards not bloat because of the mutual extrusion of first connector and second connector, causes fit clearance excessive;
4, embodiment 3 described shaft couplings of the present utility model, axle and the stressed of motor shaft are concentrated at one end, to reduce the axiality requirement of structure to this shaft coupling, can not produce both sides and be subjected to force phenomenon simultaneously, this connected mode is because of the required precision to shaft coupling reduces, and on the right-hand member same position, it is all lighter to install moment, its more reasonable structure, easier making and assembling.
Description of drawings
Fig. 1 is the explosive view of the utility model embodiment 1.
Fig. 2 is the structure partial enlarged drawing of Fig. 1.
Fig. 3 is the structure partial enlarged drawing of the utility model embodiment 2.
Fig. 4 is the schematic perspective view of the shaft coupling of the utility model embodiment 3.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing:
The syndeton of the motor shaft of sewing machine and last axle includes motor shaft 11, goes up axle 7, screw 2 and shaft coupling, and described shaft coupling comprises first connector 5, flexible buffering piece 4 and second connector 3,
The first above-mentioned connector 5 is: the side 52 at a hollow cylinder radially is provided with more than one positioning through hole 56, opposite side is provided with the necking part 51 that necking down forms, axially be provided with the groove 54 that two circumferential uniform end faces are the fan ring surface in the outer of the hollow cylinder of necking part 51 with interior, be formed with projection 55 between the adjacent groove 54;
Above-mentioned flexible buffering piece 4 is: with the groove floor 54 on first connector 5, the upper surface 53 of projection 55 and the integrated supple buffer layer that the left and right side fits, supple buffer layer is formed with little groove 41 between the left and right side of projection 55;
The second above-mentioned connector 3 is: have and the little groove 41 of the flexible buffering piece projection 31 that cooperates of clamping mutually in that the outer surface of a hollow cylinder is one-body molded, projection 31 and with projection 31 hollow cylinders that link to each other on radially be provided with positioning through hole 32;
Be fixed on the installation position 111 or 71 of motor shaft 11 or last axle 7 by the positioning through hole 32 on second connector 3 with screw 2, be fixed on the installation position 71 or 11 of axle 7 or motor shaft 11 by the positioning through hole 56 on first connector 3 with screw, flexible buffering piece 4 is connected on the groove 54 and projection 55 of first connector, and the projection of second connector is connected in the little groove 41 of flexible buffering piece 4.
The positioning through hole 32 that is provided with on the first above-mentioned connector 3 has two, and the positioning through hole 56 that is provided with on second connector 5 has two.
The thickness L1 of the supple buffer layer on the above-mentioned left and right side that is fitted in first connector 〉=the be fitted in thickness L2 of the groove floor and the supple buffer layer on the projection upper surface of first connector.
The inwall of above-mentioned positioning through hole 32,56 is provided with the internal thread that matches for external screw thread on the screw 2.
The foregoing description is preferred embodiment of the present utility model only, is not to limit protection range of the present utility model according to this, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection range of the present utility model.
Claims (6)
1. the syndeton of the motor shaft of sewing machine and last axle includes motor shaft, goes up axle, screw and shaft coupling, and it is characterized in that: described shaft coupling comprises first connector, flexible buffering piece and second connector,
Described first connector is: the side at a hollow cylinder radially is provided with more than one positioning through hole, opposite side is provided with the necking part that necking down forms, axially be provided with two or four grooves that circumferential uniform end faces are the fan ring surface in the outer of the hollow cylinder of necking part with interior, be formed with projection between the adjacent groove;
Described flexible buffering piece is: with the groove floor on first connector, the upper surface of projection and the integrated supple buffer layer that the left and right side fits, supple buffer layer is formed with little groove between the left and right side of projection;
Described second connector is: have and the little groove of the flexible buffering piece projection that cooperates of clamping mutually in that the outer surface of a hollow cylinder is one-body molded, projection and with hollow cylinder that projection links to each other on radially be provided with positioning through hole;
With screw be fixed on motor shaft by the positioning through hole on second connector or go up axle the installation position or on, with screw by the positioning through hole on first connector be fixed on axle or the installation position of motor shaft or on, flexible buffering piece is connected on the groove and projection of first connector, and the projection of second connector is connected in the little groove of flexible buffering piece.
2. the syndeton of the motor shaft of sewing machine according to claim 1 and last axle, it is characterized in that: the positioning through hole that is provided with on described first connector has two or four, and the positioning through hole that is provided with on second connector has two or four.
3. the syndeton of the motor shaft of sewing machine according to claim 1 and last axle is characterized in that: the thickness of the supple buffer layer on the described left and right side that is fitted in first connector 〉=the be fitted in thickness of the groove floor and the supple buffer layer on the projection upper surface of first connector.
4. the syndeton of the motor shaft of sewing machine according to claim 1 and last axle, it is characterized in that: described shaft coupling is: the side at a hollow cylinder is provided with annular boss formation large-diameter portion and minor diameter part, radially be provided with on the minor diameter part motor shaft with on the motor shaft positioning through hole that equates of corresponding, the quantity in installation position of axle and on the axle positioning through hole, motor shaft is connected with shaft coupling, will goes up by last positioning through hole with screw and spool be connected with shaft coupling by the motor shaft positioning through hole with screw.
5. the syndeton of the motor shaft of sewing machine according to claim 4 and last axle, it is characterized in that: described motor shaft positioning through hole and last axle positioning through hole have two respectively.
6. according to the syndeton of the motor shaft of claim 1 or 4 described sewing machines and last axle, it is characterized in that: the inwall of described positioning through hole is provided with the internal thread that matches for external screw thread on the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205522147U CN201839130U (en) | 2010-10-08 | 2010-10-08 | Connection structure of motor shaft and upper shaft of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205522147U CN201839130U (en) | 2010-10-08 | 2010-10-08 | Connection structure of motor shaft and upper shaft of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839130U true CN201839130U (en) | 2011-05-18 |
Family
ID=44009229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205522147U Expired - Lifetime CN201839130U (en) | 2010-10-08 | 2010-10-08 | Connection structure of motor shaft and upper shaft of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839130U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178608A (en) * | 2014-09-17 | 2014-12-03 | 平湖市当湖街道飞天人机械图文设计服务部 | Industrial sewing machine oil circuit connecting member and heat treatment process thereof |
| CN104482064A (en) * | 2014-09-25 | 2015-04-01 | 江苏荣基重工科技有限公司 | Oldham coupling and unreeling machine using same |
| 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 |
| CN106471173A (en) * | 2014-07-29 | 2017-03-01 | 金光沿 | The bearing arrangement of sewing machine upper shaft |
| CN106828907A (en) * | 2017-03-27 | 2017-06-13 | 必扬星环（北京）航空科技有限公司 | It is easy to the double hair turbine wheel shaft depopulated helicopter dynamical systems safeguarded |
| CN106864756A (en) * | 2017-03-27 | 2017-06-20 | 必扬星环（北京）航空科技有限公司 | The double remaining turbine wheel shaft dynamical systems of depopulated helicopter |
| CN110065902A (en) * | 2019-03-28 | 2019-07-30 | 杭州恒宏机械有限公司 | Muff-coupling trapezoidal screw rod anti-blocking structure |
-
2010
- 2010-10-08 CN CN2010205522147U patent/CN201839130U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471173A (en) * | 2014-07-29 | 2017-03-01 | 金光沿 | The bearing arrangement of sewing machine upper shaft |
| CN106471173B (en) * | 2014-07-29 | 2020-04-03 | 金光沿 | Bearing device of upper shaft of sewing machine |
| CN104178608A (en) * | 2014-09-17 | 2014-12-03 | 平湖市当湖街道飞天人机械图文设计服务部 | Industrial sewing machine oil circuit connecting member and heat treatment process thereof |
| CN104482064A (en) * | 2014-09-25 | 2015-04-01 | 江苏荣基重工科技有限公司 | Oldham coupling and unreeling machine using same |
| 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 |
| CN106828907A (en) * | 2017-03-27 | 2017-06-13 | 必扬星环（北京）航空科技有限公司 | It is easy to the double hair turbine wheel shaft depopulated helicopter dynamical systems safeguarded |
| CN106864756A (en) * | 2017-03-27 | 2017-06-20 | 必扬星环（北京）航空科技有限公司 | The double remaining turbine wheel shaft dynamical systems of depopulated helicopter |
| CN110065902A (en) * | 2019-03-28 | 2019-07-30 | 杭州恒宏机械有限公司 | Muff-coupling trapezoidal screw rod anti-blocking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JACK SEWING CO., LTD. Free format text: FORMER NAME: NEW JACK SEWING MACHINE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee after: JACK SEWING MACHINE CO., LTD. Address before: 318010 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee before: New Jack Sewing Machine Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |