CN2682246Y - Large torque friction slipping type output shaft - Google Patents
Large torque friction slipping type output shaft Download PDFInfo
- Publication number
- CN2682246Y CN2682246Y CN 200420024907 CN200420024907U CN2682246Y CN 2682246 Y CN2682246 Y CN 2682246Y CN 200420024907 CN200420024907 CN 200420024907 CN 200420024907 U CN200420024907 U CN 200420024907U CN 2682246 Y CN2682246 Y CN 2682246Y
- Authority
- CN
- China
- Prior art keywords
- output shaft
- shims
- plastic
- metal
- plastic gear
- 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 - Lifetime
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Abstract
The utility model relates to a large torque friction slipping type output shaft, comprising an output shaft, a plastic gear, two metal spring shims and two metal shims. The two metal shims are respectively arranged on the two sides of the plastic gears and between the two metal spring shims and are fixedly arranged on the plastic gears. When the external load exceeds the rated load of the motor, the slip phenomenon can appear between the plastic gears and the output shaft and between the metal shims and the output shaft, to reach the function of over-loaded protection. The utility model has the advantages of simple and reasonable structure, big output torque, long service life, stable performance and low production cost, etc, and the utility model is suitable for the miniature motor.
Description
Technical field
The utility model relates to a kind of and the matching used friction slip formula of micromachine output shaft, belongs to the coupling field.
In order to protect motor when transshipping, not burnt; just need between motor and load, be provided with friction slip formula output shaft; its structure mainly comprises output shaft, gear and two compression springs; two compression springs are clamped in the both sides of gear with the output shaft riveted joint; motor driven gear makes output shaft drive load; when load is transshipped, produce skidding between gear and the compression spring and protect motor not burnt.Gear on the existing friction slip formula output shaft mostly is metal gear, just requires also to be metal gear with its meshed gears, make the easy abrasion of the flank of tooth, and cost is higher.For micromachine, select that plastic gear is more favourable to reduce cost and increase the service life for use, but because the friction factor between plastic gear and the metal spring pad is lower, cause friction to be changeed apart from lower, and because plastic gear is aging, can be converted into the plastics distortion by resiliently deformable, further reduce frictional force apart from and can't starting load.
Summary of the invention
The purpose of this utility model is to exist output to change apart from lower deficiency in order to improve the wheeled friction slip formula of above-mentioned plastic teeth output shaft, designs a kind of simple and reasonable, output and changes apart from the large torque friction slip formula output shaft of the plastic gear of big, long service life, stable performance.
The utility model mainly is on the basis of the wheeled friction slip output shaft of existing plastic teeth, increases by two metallic shims and forms.Its structure comprises output shaft, plastic gear, 2 metal spring pads and 2 metallic shims, and described 2 metallic shims are installed between plastic gear and 2 the metal spring pads respectively and fixedly mount on the bi-side of plastic gear.
Owing on the bi-side of plastic gear, be installed with metallic shim, with the metal spring pad directly and plastic friction change into and the metallic shim friction, make it to have the performance of metal gear, the advantage that has plastic gear again, so, that the utility model obviously has is simple and reasonable, output is changeed apart from advantages such as big, long service life, stable performance and cost of production are low, and the most suitable micromachine uses.
Description of drawings
Accompanying drawing 1 is the structural representation of existing friction slip formula output shaft;
Accompanying drawing 2 is structural representations of friction slip formula output shaft of the present utility model;
Accompanying drawing 3 is structural representations of metallic shim in the accompanying drawing 2;
Accompanying drawing 4 is structural representations of plastic gear in the accompanying drawing 2;
Accompanying drawing 5 is plan structure schematic representation of accompanying drawing 4.
Embodiment
Referring to accompanying drawing, 1 is output shaft in the accompanying drawing 1, the 2nd, and metal spring pad, the 3rd, metal or plastic gear, described two metal spring pads 2 usefulness output shafts, 1 riveted joint and be clamped in the both sides of metal or plastic gear 3.In the accompanying drawing 2 11 is output shafts, the 12nd, metal spring pad, the 13rd, plastic gear, the 14th, metallic shim, described 2 metallic shims 14 are installed in respectively between plastic gear 13 and 2 the metal spring pads 12, and 2 metallic shims 14 fixedly mount respectively on two sides of plastic gear 13.Can adopt the method fixed installation of positioning hole and convex closure, its structure is shown in Fig. 3,4,5, among the figure 15 is provided in a side of the positioning hole on the metallic shim, 16 are provided in a side of convex closure corresponding with positioning hole on the plastic gear, the quantity of positioning hole and convex closure is consistent, can establish one or more when the plastic gear at assembling metallic shim place is suitable when recessed, when the plastic gear at assembling metallic shim place does not have can establish two or more when recessed.During assembling, respectively stack a metallic shim 14 and metal spring pad 12 on the bi-side of plastic gear 13 respectively, and the convex closure 16 on positioning hole on the metallic shim 15 and the plastic gear is embedded mutually and locatees, put on output shaft 11 riveted joints then and get final product.After the riveted joint; the positive pressure that produces on the metal spring pad passes to plastic gear through metallic shim; because the lifting surface area of plastic gear increases; thereby can bear bigger positive pressure; simultaneously; friction factor between metal spring pad and the metallic shim is bigger than the friction factor between metal spring pad and the plastics; thereby improve its friction and change distance; when outer load surpasses the rated load of motor; skidding will occur between plastic gear and metallic shim and the output shaft, play overload protective function.Because the material of gear 13 is plastics, the gear that is meshed with it also can use plastic material, thereby can reduce production costs greatly, obviously having simple and reasonable, output changes apart from advantages such as big, long service life, stable performance and cost of production are low, and the most suitable micromachine uses.
Claims (2)
1, a kind of large torque friction slip formula output shaft, comprise output shaft, plastic gear and 2 metal spring pads, it is characterized in that also including 2 metallic shims, described 2 metallic shims are installed between plastic gear and 2 the metal spring pads respectively and are fixedly mounted on the bi-side of plastic gear.
2, large torque friction slip formula output shaft as claimed in claim 1 is characterized in that metallic shim is provided with and is no less than 1 positioning hole, with the plastic gear of positioning hole corresponding position on be provided with the location convex closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024907 CN2682246Y (en) | 2004-02-24 | 2004-02-24 | Large torque friction slipping type output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024907 CN2682246Y (en) | 2004-02-24 | 2004-02-24 | Large torque friction slipping type output shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682246Y true CN2682246Y (en) | 2005-03-02 |
Family
ID=34606964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420024907 Expired - Lifetime CN2682246Y (en) | 2004-02-24 | 2004-02-24 | Large torque friction slipping type output shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682246Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052438A (en) * | 2010-12-27 | 2011-05-11 | 宁波划一马达有限公司 | Gear drive structure with function of overload protection |
| CN101874168B (en) * | 2008-01-17 | 2013-05-01 | 三菱电机株式会社 | Gear mechanism with torque limiter |
| CN103438187A (en) * | 2013-08-27 | 2013-12-11 | 重庆建设工业(集团)有限责任公司 | Overload protection transmission gear |
| CN104482153A (en) * | 2014-12-26 | 2015-04-01 | 常州市盛和电子有限公司 | Overload slip protection device |
| CN108324075A (en) * | 2017-01-20 | 2018-07-27 | 广东美的生活电器制造有限公司 | Spiral propeller and food processor for food processor |
-
2004
- 2004-02-24 CN CN 200420024907 patent/CN2682246Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101874168B (en) * | 2008-01-17 | 2013-05-01 | 三菱电机株式会社 | Gear mechanism with torque limiter |
| CN102052438A (en) * | 2010-12-27 | 2011-05-11 | 宁波划一马达有限公司 | Gear drive structure with function of overload protection |
| CN103438187A (en) * | 2013-08-27 | 2013-12-11 | 重庆建设工业(集团)有限责任公司 | Overload protection transmission gear |
| CN104482153A (en) * | 2014-12-26 | 2015-04-01 | 常州市盛和电子有限公司 | Overload slip protection device |
| CN108324075A (en) * | 2017-01-20 | 2018-07-27 | 广东美的生活电器制造有限公司 | Spiral propeller and food processor for food processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU LESHI LEILI ELECTRICAL APPLIANCE CO., LT Free format text: FORMER OWNER: LEILI ELECTRIC CO., LTD., CHANGZHOU Effective date: 20100723 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213100 XIATANGFANG VILLAGE, QISHUYAN, CHANGZHOU CITY, JIANGSU PROVINCE TO: 213011 QIANJIA INDUSTRIAL PARK, YAOGUAN TOWN, WUJIN DISTRICT, CHANGZHOU CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100723 Address after: 213011 Changzhou City, Wujin Province, the town of remote view of the town of Home Industrial Park Patentee after: Changzhou Leshi Leili Electrical Appliance Co., Ltd. Address before: 213100, Jiangsu, Changzhou province Qishuyan Tong Fang Village Patentee before: Leili Electrical Equipment. Co., Ltd., Changzhou |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140224 Granted publication date: 20050302 |