CN2298177Y - Electric machine speed reduction mechanism for vehicle wiper - Google Patents
Electric machine speed reduction mechanism for vehicle wiper Download PDFInfo
- Publication number
- CN2298177Y CN2298177Y CN 97215594 CN97215594U CN2298177Y CN 2298177 Y CN2298177 Y CN 2298177Y CN 97215594 CN97215594 CN 97215594 CN 97215594 U CN97215594 U CN 97215594U CN 2298177 Y CN2298177 Y CN 2298177Y
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- China
- Prior art keywords
- spiroid
- gear
- worm
- angle
- degree
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- Expired - Fee Related
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- Gears, Cams (AREA)
Abstract
The utility model relates to an electric motor speed reduction transmission mechanism for a vehicle wiper, which comprises an electric motor, a supporting bearing, a worm which is arranged at the end of a shaft of the electric motor, and a worm wheel which is matched with the worm. The utility model is characterized in that the worm is a cone worm in an Archimedean tooth shape; the worm wheel is a cone worm wheel which is matched with the worm. The utility model has the advantages that the reselection coefficient is large; multiple teeth are meshed in transmission, so the load borne by each of the teeth is small; the transmission noise is low; the abrasion is small; the transmission efficiency is high; the service life is long, etc. The utility model can be used for the electric motor speed reduction transmission mechanism for the vehicle wiper.
Description
The utility model relates to automobile water wiper motor reduction gearing mechanism.
The automobile water wiper key distinction structurally is the wiper motor reduction gearing mechanism.In the prior art, speed reduction gearing has two classes substantially, i.e. the reversible structure that cooperates of the unidirectional type structure that is cooperated by unidirectional worm gear, worm screw and two-way worm gear, worm screw.This two classes speed reduction gearing all is column-style worm gear, worm screw combination transmission devices, and its shortcoming is that the gravity treatment coefficient is little, during transmission worm gear, worm mesh the number of teeth few, the only tooth of multiple spot engagement.Shortcomings such as therefore, the load of each tooth carrying is bigger, thereby causes transmission noise height, and wearing and tearing are big, and driving efficiency is low, and the life-span is short.
The purpose of this utility model is to overcome the above-mentioned shortcoming that prior art exists, design a kind of reduction gearing mechanism of new structure, to improve the gravity treatment coefficient of reduction gearing mechanism, the ingear number of teeth when increasing transmission, thereby reduce the load of each tooth carrying, reduce the transmission noise, reduce abrasion factor, improve driving efficiency and service life.
Technical solution of the present utility model is the spiroid gear that column-style worm gear, the worm screw with prior art changes over spiroid and be complementary with it.
The utility model automobile water wiper motor reduction gearing mechanism has an electrical motor (1), a backup bearing (2), a worm screw (3) and a worm gear (4) that is complementary with worm screw (3) that is positioned at electrical motor (1) axle head, it is characterized in that: said worm screw (3) is the spiroid that contains Archimedes's profile of tooth, and said worm gear (4) is that the spiroid gear, the said spiroid (3) that are complementary with worm screw (3) are as follows with the parameter of spiroid gear (4):
A. the face cone angle of spiroid gear is 8 ± 0.2 degree, and the cone angle of spiroid is 5 ± 0.2 degree;
B. the transmitting ratio of spiroid and spiroid gear: minimum 10: 1, the highest 400: 1;
C. the axial pressure angle of spiroid: the flash angle of obliquity is 30～35 degree, and low limit angle of obliquity is 10～15 degree;
D. spiroid axle center and spiroid gear distance of shaft centers are from being that width between centers is 20～150mm;
E. spiroid gear external diameter=3 * width between centers, internal diameter=2.2 * width between centers;
F. the angle of rotation of joint of spiroid=30～60 are spent;
G. the lay ratio of spiroid and spiroid gear=2.8～5.5;
H. the profile of tooth of spiroid is a spiral of Archimedes, and profile of tooth is a straight-side profile, and the principal section of spiroid gear is an involute.Compare with prior art, the utility model has following advantage:
1. the gravity treatment coefficient is big.When transmission the ingear tooth imitate many, its ingear number of teeth quite and the spiroid gear number of teeth 12%.For example, the spiroid gear number of teeth is 55 o'clock, and its gravity treatment coefficient is 6.Therefore, the load of each tooth carrying reduces pro rata;
2. the transmission noise is low.The gravity treatment coefficient is big when meshing because of transmission, and the tooth pitch accumulative pitch error is little to the sensivity of noise, so the transmission noise is lower than 58 decibels;
3. the life-span is long.Because of it is multiple tooth engagement simultaneously, the load that each tooth is born is little, and it is little to wear and tear, be difficult for beating tooth, so the life-span is long:
4. driving torque is big.Because of it is multiple tooth engagement simultaneously, so it is big to bear the driving torque ability;
5. driving efficiency height.Because of each tooth bear the load little, loss due to friction is little, so the driving efficiency height.
Below in conjunction with accompanying drawing, also be that embodiment of the present utility model is further described the utility model.
Fig. 1 is the cross-sectional view of facing of the present utility model.Wherein (1) is electrical motor, (2) be the backup bearing of spiroid, (3) be the spiroid with spiral of Archimedes profile of tooth that is positioned at electrical motor (1) axle head, its profile of tooth is a straight-side profile, and (4) are complementary with spiroid (3), the principal section is the spiroid gear of involute.
Embodiment 1
Structure as shown in Figure 1.Spiroid wherein (3) is as follows with the parameter of spiroid gear (4):
A. the face cone angle of spiroid gear is 8 ± 0.2 degree, and the cone angle of spiroid is 5 ± 0.2 degree;
B. the transmitting ratio of spiroid and spiroid gear: minimum 10: 1, the highest 400: 1;
C. the axial pressure angle of spiroid: the flash angle of obliquity is 30 degree, and low limit angle of obliquity is 10 degree; D. the width between centers in spiroid axle center and spiroid gear axle center is 20mm; E. spiroid gear external diameter=3 * width between centers, internal diameter=2.2 * width between centers; F. the angle of rotation of joint of spiroid=30 are spent; G. the lay ratio of spiroid and spiroid gear=2.8.Embodiment 2 structure as shown in Figure 1.Spiroid wherein (3) is as follows with the parameter of spiroid gear (4): the face cone angle of A. spiroid gear is 8 ± 0.2 degree, and the cone angle of spiroid is 5 ± 0.2 degree; B. the transmitting ratio of spiroid and spiroid gear: minimum 10: 1, the highest 400: 1; C. the axial pressure angle of spiroid: the flash angle of obliquity is 32 degree, and low limit angle of obliquity is 12 degree; D. the width between centers in spiroid axle center and spiroid gear axle center is 100mm; E. spiroid gear external diameter=3 * width between centers, internal diameter=2.2 * width between centers; F. the angle of rotation of joint of spiroid=45 are spent; G. the lay ratio of spiroid and spiroid gear=4.0.Embodiment 3 structure as shown in Figure 1, spiroid wherein (3) is as follows with the parameter of spiroid gear (4): the face cone angle of A. spiroid gear is 8 ± 0.2 degree, the cone angle of spiroid is 5 ± 0.2 degree; B. the transmitting ratio of spiroid and spiroid gear: minimum 10: 1, the highest 400: 1; C. the axial pressure angle of spiroid: the flash angle of obliquity is 35 degree, and low limit angle of obliquity is 15 degree; D. the width between centers in spiroid axle center and spiroid gear axle center is 150mm; E. spiroid gear external diameter=3 * width between centers, internal diameter=2.2 * width between centers; F. the angle of rotation of joint of spiroid=60 are spent; G. the lay ratio of spiroid and spiroid gear=5.5.
Claims (1)
1, a kind of automobile water wiper motor reduction gearing mechanism, an electrical motor (1) is arranged, a backup bearing (2), a worm screw (3) and a worm gear (4) that is complementary with worm screw (3) that is positioned at electrical motor (1) axle head, it is characterized in that: said worm screw (3) is the spiroid that contains Archimedes's profile of tooth, said worm gear (4) is the spiroid gear that is complementary with worm screw (3), and said spiroid (3) is as follows with the parameter of spiroid gear (4):
A. the face cone angle of spiroid gear is 8 ± 0.2 degree, and the cone angle of spiroid is 5 ± 0.2 degree;
B. the transmitting ratio of spiroid and spiroid gear: minimum 10: 1, the highest 400: 1;
C. the axial pressure angle of spiroid: the flash angle of obliquity is 30～35 degree, and low limit angle of obliquity is 10～15 degree;
D. spiroid axle center and spiroid gear distance of shaft centers are from being that width between centers is 20～150mm;
E. spiroid gear external diameter 3 * width between centers, internal diameter 2.2 * width between centers;
F. the angle of rotation of joint 30～60 of spiroid is spent;
G. the lay ratio 2.8～5.5 of spiroid and spiroid gear;
H. the profile of tooth of spiroid is a spiral of Archimedes, and profile of tooth is a straight-side profile, and the principal section of spiroid gear is an involute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215594 CN2298177Y (en) | 1997-05-06 | 1997-05-06 | Electric machine speed reduction mechanism for vehicle wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215594 CN2298177Y (en) | 1997-05-06 | 1997-05-06 | Electric machine speed reduction mechanism for vehicle wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2298177Y true CN2298177Y (en) | 1998-11-25 |
Family
ID=33932695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215594 Expired - Fee Related CN2298177Y (en) | 1997-05-06 | 1997-05-06 | Electric machine speed reduction mechanism for vehicle wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2298177Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592067A (en) * | 2013-12-03 | 2014-02-19 | 贵阳万江航空机电有限公司 | Method and device for testing distributed forces of conducting bar of automobile windscreen wiper |
| CN105882609A (en) * | 2016-05-18 | 2016-08-24 | 中国航空工业集团公司西安飞机设计研究所 | Airplane windshield wiper synchronizing mechanism |
| CN106090170A (en) * | 2016-08-19 | 2016-11-09 | 重庆齿轮箱有限责任公司 | A kind of compact worm screw slewing equipment |
-
1997
- 1997-05-06 CN CN 97215594 patent/CN2298177Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592067A (en) * | 2013-12-03 | 2014-02-19 | 贵阳万江航空机电有限公司 | Method and device for testing distributed forces of conducting bar of automobile windscreen wiper |
| CN103592067B (en) * | 2013-12-03 | 2015-10-28 | 贵阳万江航空机电有限公司 | A kind of automobile wiper blade sliver distributed force method of testing and equipment |
| CN105882609A (en) * | 2016-05-18 | 2016-08-24 | 中国航空工业集团公司西安飞机设计研究所 | Airplane windshield wiper synchronizing mechanism |
| CN105882609B (en) * | 2016-05-18 | 2018-01-30 | 中国航空工业集团公司西安飞机设计研究所 | A kind of frontal windshield rain brush lazy-tongs |
| CN106090170A (en) * | 2016-08-19 | 2016-11-09 | 重庆齿轮箱有限责任公司 | A kind of compact worm screw slewing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |