CN2558147Y - Equal strength circular gear surface gearing pair motor for car - Google Patents
Equal strength circular gear surface gearing pair motor for car Download PDFInfo
- Publication number
- CN2558147Y CN2558147Y CN 02242127 CN02242127U CN2558147Y CN 2558147 Y CN2558147 Y CN 2558147Y CN 02242127 CN02242127 CN 02242127 CN 02242127 U CN02242127 U CN 02242127U CN 2558147 Y CN2558147 Y CN 2558147Y
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- CN
- China
- Prior art keywords
- worm
- gear
- helical gear
- motor
- transmission pair
- 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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- Gear Transmission (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Gears, Cams (AREA)
Abstract
Disclosed is a uniform-strengthen arc tooth-surface transmission pair automobile motor, pertaining to an improved structure of the worm gears meshing with the transmission pair in the automobile motor. The utility model comprises an armature, an armature shaft and a reduce-drive apparatus; wherein, the reduce-drive apparatus is composed of a worm and a helical gear-meshed transmission pair; the worm is arranged on the armature shaft; the tooth thickness of the helical reference circle B#-(1) is larger than the tooth thickness of the worm reference circle, B#-(2); the helical gear profile is composed of multi-section curve of second order envelops. The utility model adopts the special gear profile structure of worm and plastic gear transmission pair, which realizes the purpose that the worm and the gear driving reaches uniform strengthen and close service life in the motor. Thus the utility model is a great improvement for the worm gear transmission pair in the automobile motor.
Description
Technical field
The improvement of gear on worm engaged transmission auxiliary structure in the utility model and the electric motor of automobile.
Background technology
Permanent magnetic DC motor that multiple band decelerator arranged in the supporting electric component on the automobile at present is as wiper motor, seat motor, air regulator elevating motor etc., the common ground of its structure is: behind the electrical power, the rotation of worm screw armature shaft, worm screw and gears engaged, and driven gear shaft assembly rotation, realize that thus mechanical energy is exported by gear shaft by the deceleration of armature shaft to gear shaft, finish electric energy and transform to mechanical energy.But because general worm screw and armature shaft are made by steel material and through heat treatment, and gear is by injection molding, in actual manufacturing and use, there be the gear life problem low far beyond worm screw, wearing and tearing of plastic teeth gear part and slippage damage and become the motor key in useful life, as wiper motor, the durability test generally can only reach 150 * 10
4Inferior.
Summary of the invention
In view of the deficiency that prior art exists, the purpose of this utility model aims to provide a kind of electric motor of automobile that improves gear and worm engaging transmission working life to greatest extent.
The utility model is finished as follows: it comprises armature, armature shaft, speed reduction gearing, and described speed reduction gearing is made up of worm screw and helical gear engaged transmission pair, and described worm screw is arranged on the armature shaft, described helical gear reference circle transverse tooth thickness B
1Greater than reference circle of worm transverse tooth thickness B
2, described helical gear curve is formed by connecting by multistage curve of order 2 envelope.
Above-mentioned helical gear reference circle transverse tooth thickness B
1Be reference circle of worm transverse tooth thickness B
2Twice.
Above-mentioned helical gear profile of tooth is made up of the approximate involute of multi-section circular arc.
The utility model compared with prior art, equal strength wildhaber-novikov gear and worm engaging new structure have been adopted, reduced in the motor because of plastic beveled wheel excessive wear or slippage and damaged faults such as causing noise and vibration increase, reach the working life that improves plastic gear and transmission to greatest extent, thereby improved the useful life of motor, reached 175 * 10 as the wiper motor durability
4More than inferior.Adopt the helical gear overload capacity of the utility model structure to strengthen significantly simultaneously, brake destructive contrast test through motor overload, when motor overload burnt out, its plastic beveled wheel still can not damage in slippage, in the actual product use, motor can not lose efficacy inadequately because of the strength of gear teeth.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is helical gear and worm engaging flute profile figure among Fig. 1
Specific embodiments
Accompanying drawing has been represented structure of the present utility model, in conjunction with the embodiments structure of the present utility model and principle thereof is further elaborated below again.The utility model comprises armature 3, armature shaft 4, speed reduction gearing 5, and described deceleration transmission 5 is formed by worm screw 1 and helical gear 2 engaged transmission are secondary, and described worm screw 1 is arranged on the armature shaft 4, described helical gear 2 reference circle transverse tooth thickness B
1Greater than worm screw 1 reference circle transverse tooth thickness B
2, described helical gear 2 profiles of tooth are formed by connecting by multistage curve of order 2 envelope.In the present embodiment, helical gear 2 reference circle transverse tooth thickness B
1Be worm screw 1 reference circle transverse tooth thickness B
2Twice, described helical gear 2 tooth curves are that the approximate involute of multi-section circular arc is formed, described worm screw profile of tooth 7 is a prolate involute, promptly worm screw has straight-side profile on normal profile, flank profil is a convex outer curve on the axial section, is prolate involute on end face.The utility model has adopted the special tooth profile structure of worm screw and plastic beveled wheel engaged transmission pair, realized that the motor middle gear cooperates the purpose that reaches equal strength, close life-span with worm-drive, when making the durability of motor obtain increasing substantially, strengthened the overload capacity of motor gear, obviously having reduced motor return of goods disqualification rate, is one of worm screw in the electric motor of automobile and gear driving pair to be created greatly change.
Claims (3)
1. equal strength circular-arc tooth surface transmission electric motor of automobile, comprise armature (3), armature shaft (4), speed reduction gearing (5), described speed reduction gearing (5) is formed by worm screw (1) and helical gear (2) engaged transmission are secondary, described worm screw (1) is arranged on the armature shaft (4), it is characterized in that: described helical gear (2) reference circle transverse tooth thickness B
1Greater than worm screw (1) reference circle transverse tooth thickness B
2, described helical gear (2) tooth curve is formed by connecting by multistage curve of order 2 envelope.
2. equal strength circular-arc tooth surface transmission electric motor of automobile as claimed in claim 1 is characterized in that: described helical gear reference circle transverse tooth thickness B
1Be worm indexing transverse tooth thickness B
2Twice.
3. equal strength circular-arc tooth surface transmission electric motor of automobile as claimed in claim 1 or 2 is characterized in that: described helical gear (2) profile of tooth is made up of the approximate involute of multi-section circular arc (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02242127 CN2558147Y (en) | 2002-07-19 | 2002-07-19 | Equal strength circular gear surface gearing pair motor for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02242127 CN2558147Y (en) | 2002-07-19 | 2002-07-19 | Equal strength circular gear surface gearing pair motor for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558147Y true CN2558147Y (en) | 2003-06-25 |
Family
ID=33714781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02242127 Expired - Lifetime CN2558147Y (en) | 2002-07-19 | 2002-07-19 | Equal strength circular gear surface gearing pair motor for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558147Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749405B (en) * | 2008-12-10 | 2012-04-25 | 胜华波集团有限公司 | Machining method of bevel gear and worm transmission structure with nonstandard circular-arc tooth surface |
| CN104505982A (en) * | 2014-12-31 | 2015-04-08 | 浙江胜华波电器股份有限公司 | Motor with arc-shaped thick-tooth type bevel gear |
| CN104539101A (en) * | 2014-12-31 | 2015-04-22 | 浙江胜华波电器股份有限公司 | Electric motor worm gear transmission mechanism with arc fat tooth type bevel wheel |
-
2002
- 2002-07-19 CN CN 02242127 patent/CN2558147Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749405B (en) * | 2008-12-10 | 2012-04-25 | 胜华波集团有限公司 | Machining method of bevel gear and worm transmission structure with nonstandard circular-arc tooth surface |
| CN104505982A (en) * | 2014-12-31 | 2015-04-08 | 浙江胜华波电器股份有限公司 | Motor with arc-shaped thick-tooth type bevel gear |
| CN104539101A (en) * | 2014-12-31 | 2015-04-22 | 浙江胜华波电器股份有限公司 | Electric motor worm gear transmission mechanism with arc fat tooth type bevel wheel |
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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: ZHEJIANG PROVINCE SHENGHUABO ELECTRIC CO., LTD. Free format text: FORMER OWNER: SHENGHUABO GROUP CO.,LTD. Effective date: 20100129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENGHUABO GROUP CO.,LTD. Free format text: FORMER NAME: ZHEJIANG SHENGHUABO AUTOMOBILE ELECTRIC APPLIANCE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Zip the new industrial zone, Zhejiang province Ruian City Tangxia Town: 325204 Patentee after: SHENGHUABO GROUP Co.,Ltd. Address before: Zip new Fang Industrial Zone, Zhejiang province Ruian City Tangxia Town: 325204 Patentee before: Zhejiang Shenghuabo Automobile Electric Appliance Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: Zip the new industrial zone, Zhejiang province Ruian City Tangxia Town: 325204 Patentee after: ZHEJIANG SHENGHUABO ELECTRIC APPLIANCE Corp. Address before: Zip the new industrial zone, Zhejiang province Ruian City Tangxia Town: 325204 Patentee before: SHENGHUABO GROUP Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120719 Granted publication date: 20030625 |