CN101497324A - Gear transmission device for automobile rear view mirror driver - Google Patents
Gear transmission device for automobile rear view mirror driver Download PDFInfo
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- CN101497324A CN101497324A CNA2009100958999A CN200910095899A CN101497324A CN 101497324 A CN101497324 A CN 101497324A CN A2009100958999 A CNA2009100958999 A CN A2009100958999A CN 200910095899 A CN200910095899 A CN 200910095899A CN 101497324 A CN101497324 A CN 101497324A
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- gear
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- transmission device
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- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
The invention relates to a gear transmission device for a mirror face drive of a rearview mirror of an automobile. The gear transmission device comprises an upper cover (1) of a gear box, three planetary gears (2), a central gear rod (3) and a lower cover (4) of the gear box; inner gear rings of the upper cover (1) of the gear box are engaged with upper gear rings (2.1) of the three planetary gears (2) respectively; lower gear rings (2.2) of the three planetary gears (2) are engaged with the central gear rod (3) and the inner gear rings of the lower cover (4) of the gear box; the gear number of the inner gear rings of the upper cover (1) of the gear box is 52; the gear number of the upper gear rings (2.1) of the planetary gears (2) is 21; the gear number of the lower gear rings (2.2) of the planetary gears (2) is 22; the gear number of the central gear rod (3) is 9; and the gear number of the inner gear rings of the lower cover (4) of the gear box is 53. The gear transmission device has the characteristics that the needed motor has low rotational speed and small noise.
Description
Technical field:
The invention belongs to the vehicle body fittings field, particularly relate to a kind of gear transmission device for automobile rear view mirror driver.
Background technology:
At present, the epicyclic reduction gear mechanism that automobile rear view mirror driver (being also referred to as minute surface deflector or minute surface commutator on the industry) adopts, common fit is: three planetary wheel rigging positions be 120 degree divided equally positions and in the number of teeth of the gear case lower cover of leading must divide equally.The reduction ratio of the epicyclic reduction gear mechanism that prior art adopts is generally two kinds: the one, and the number of teeth of gear case loam cake gear ring is that the number of teeth of 47 teeth, planetary wheel upper ring gear is that the number of teeth of 19 teeth, planetary wheel lower ring gear is that the number of teeth 8 teeth of 20 teeth, center ratch gear ring, the number of teeth of gear case lower cover gear ring are 49 teeth; The 2nd, the number of teeth of gear case loam cake gear ring is that the number of teeth of 52 teeth, planetary wheel upper ring gear is that the number of teeth of 22 teeth, planetary wheel lower ring gear is that the number of teeth of 23 teeth, center ratch gear ring is that the number of teeth of 7 teeth, gear case lower cover gear ring is 53 teeth.The product of the reduction ratio of the gear of the gear reduction transmission device of above-mentioned prior art, the rotating speed of the motor of demand is very fast, and therefore the noise of whole gear reduction driving device is bigger when operation.
Summary of the invention:
The technical problem to be solved in the present invention provides a kind of slow and little gear transmission device for automobile rear view mirror driver of noise of rotating speed of demand motor.
The present invention overcomes the above problems used technical scheme: a kind of gear transmission device for automobile rear view mirror driver with following structure is provided, it comprises gear case loam cake, three planetary wheels, center ratch and gear case lower covers, the internally toothed annulus of described gear case loam cake meshes with three planetary upper ring gears respectively, described three planetary lower ring gears all with the engagement of the internally toothed annulus of center ratch and gear case lower cover, the number of teeth of described gear case loam cake internally toothed annulus is 52 teeth; The described planetary upper ring gear number of teeth is 21 teeth, and the planetary lower ring gear number of teeth is 22 teeth; The number of teeth of described center ratch is 9 teeth; The number of teeth of described gear case lower cover internally toothed annulus is 53 teeth.
After adopting above structure, the present invention compared with prior art because the number of teeth of gear case loam cake internally toothed annulus is 52 teeth; The planetary upper ring gear number of teeth is 21 teeth, and the planetary lower ring gear number of teeth is 22 teeth; The number of teeth of center ratch is 9 teeth; The number of teeth of gear case lower cover internally toothed annulus is 53 teeth.This brand new reduction ratio scheme make the rotating speed of motor of demand want slow, so noise is less.
Description of drawings:
Accompanying drawing is the structural representation of gear transmission device for automobile rear view mirror driver of the present invention.
As shown in the figure: 1, gear case loam cake, 2, planetary wheel, 2.1, the planetary wheel upper ring gear, 2.2, the planetary wheel lower ring gear, 3, the center ratch, 4, the gear case lower cover.
Concrete embodiment:
Below in conjunction with accompanying drawing and concrete embodiment, the present invention is described further, but the present invention is not limited only to following concrete embodiment:
A kind of as shown in drawings gear transmission device for automobile rear view mirror driver, it comprises gear case loam cake 1, three planetary wheels 2, center ratch 3 and gear case lower covers 4, the internally toothed annulus of described gear case loam cake 1 respectively with upper ring gear 2.1 engagement of three planetary wheels 2, the lower ring gear 2.1 of described three planetary wheels 2 all with the engagement of the internally toothed annulus of center ratch 3 and gear case lower cover 4, the number of teeth of described gear case loam cake 1 internally toothed annulus is 52 teeth; Upper ring gear 2.1 numbers of teeth of described planetary wheel 2 are 21 teeth, and lower ring gear 2.2 numbers of teeth of planetary wheel 2 are 22 teeth; The number of teeth of described center ratch 3 is 9 teeth; The number of teeth of described gear case lower cover 4 internally toothed annuluss is 53 teeth.
During assembling, only need to get final product by the assembly method installation of existing conventional.
Claims (1)
1, a kind of gear transmission device for automobile rear view mirror driver, it comprises gear case loam cake (1), three planetary wheels (2), center ratch (3) and gear case lower cover (4), the internally toothed annulus of described gear case loam cake (1) respectively with the engagement of the upper ring gear (2.1) of three planetary wheels (2), the lower ring gear (2.1) of described three planetary wheels (2) all with the engagement of the internally toothed annulus of center ratch (3) and gear case lower cover (4), it is characterized in that: the number of teeth of described gear case loam cake (1) internally toothed annulus is 52 teeth; Upper ring gear (2.1) number of teeth of described planetary wheel (2) is 21 teeth, and lower ring gear (2.2) number of teeth of planetary wheel (2) is 22 teeth; The number of teeth of described center ratch (3) is 9 teeth; The number of teeth of described gear case lower cover (4) internally toothed annulus is 53 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100958999A CN101497324A (en) | 2009-02-17 | 2009-02-17 | Gear transmission device for automobile rear view mirror driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100958999A CN101497324A (en) | 2009-02-17 | 2009-02-17 | Gear transmission device for automobile rear view mirror driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101497324A true CN101497324A (en) | 2009-08-05 |
Family
ID=40944659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100958999A Pending CN101497324A (en) | 2009-02-17 | 2009-02-17 | Gear transmission device for automobile rear view mirror driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101497324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108078522A (en) * | 2017-12-28 | 2018-05-29 | 王吉昀 | A kind of electronic kitchen container washing apparatus |
| CN113525237A (en) * | 2021-07-16 | 2021-10-22 | 江门市宏力后视镜实业有限公司 | Folding device for rearview mirror of truck |
-
2009
- 2009-02-17 CN CNA2009100958999A patent/CN101497324A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108078522A (en) * | 2017-12-28 | 2018-05-29 | 王吉昀 | A kind of electronic kitchen container washing apparatus |
| CN113525237A (en) * | 2021-07-16 | 2021-10-22 | 江门市宏力后视镜实业有限公司 | Folding device for rearview mirror of truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |