CN202520875U - Motor gearbox - Google Patents
Motor gearbox Download PDFInfo
- Publication number
- CN202520875U CN202520875U CN2012202035730U CN201220203573U CN202520875U CN 202520875 U CN202520875 U CN 202520875U CN 2012202035730 U CN2012202035730 U CN 2012202035730U CN 201220203573 U CN201220203573 U CN 201220203573U CN 202520875 U CN202520875 U CN 202520875U
- Authority
- CN
- China
- Prior art keywords
- ring gear
- motor
- gear
- end cap
- hole
- 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 - Fee Related
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Abstract
The utility model provides a motor gearbox, which comprises an inner cavity formed by enclosing an upper end cover, a lower end cover and a shell, wherein a motor gear, a planet gear transmission mechanism and an output revolving shaft are arranged in the inner cavity; the motor gear is used for driving the output revolving shaft by being coupled with an input gear of the planet gear transmission mechanism; the motor gear and the output revolving shaft are positioned on the same axis; the upper end cover is provided with a through hole; the output revolving shaft passes through a first bearing and a second bearing embedded into the through hole in sequence, and extends out of the upper end cover; the first bearing is limited through a hole retainer ring; and the second bearing is limited through a shaft retainer ring. An internally-meshed planet gear speed reduction mechanism is introduced into the motor gearbox, so that the motor gearbox has the advantages of compact structure, low inter-tooth load and coaxality of input and output shafts; and meanwhile, smaller physical dimension and lower weight are realized under the condition of the same material and mechanical performance, and miniaturization of the motor gearbox is easy to realize.
Description
Technical field
The utility model relates to a kind of motor gearbox.
Background technique
Motor gearbox is a kind of through the reduction gears mechanism of the power of motor by the few pinion of the number of teeth on input shaft gearwheel more than the number of teeth to the output shaft.In the motor gearbox that prior motor disposed, the parallel-axis type speed-changing gear box is comparatively general.But because the gear in the parallel-axis type speed-changing gear box is asymmetric with respect to the position of bearings distribution, when axle produced bending deflection, load is skewness on the facewidth, therefore, the rigidity of axle was had relatively high expectations, and the high speed shaft gear needs away from input end.In addition, because the field of motor gearbox utilization belongs to household electric appliance, electronic toys etc. mostly, therefore, motor gearbox is correspondingly more and more to small-sized or microminiaturized development, and parallel-axis type gear-box volume is huge, can't reach desirable requirement.
Summary of the invention
The purpose of the utility model is to overcome the defective of existing technology, and the motor gearbox that a kind of volume is little, can adapt to heavy load and stable working is provided.
For realizing above-mentioned purpose; The utility model adopts a kind of like this motor gearbox; Comprise the inner chamber that forms by upper end cap, lower end cap and housings close, comprise motor gear, planetary gear mechanism and output revolving shaft in the described inner chamber, described motor gear through with the input gears of described planetary gear mechanism; Drive described output revolving shaft; Described motor gear and described output revolving shaft are positioned on the coaxial line, and described upper end cap is provided with through hole, and described output revolving shaft passes the clutch shaft bearing and second bearing that are embedded in the described through hole successively and from described upper end cap, extends out; Described clutch shaft bearing adopts the hole spacing with back-up ring, and described second bearing adopts shaft block ring spacing.
Especially, described planetary gear mechanism is made up of multiple-stage planetary gear train.
Especially; Described multiple-stage planetary gear train comprises first ring gear, second ring gear, the 3rd ring gear, connects locating stud and passes axially locating hole and the described housing of location formation on described the 3rd ring gear, described second ring gear, described first ring gear successively.
Especially, the axial mounting hole and the described lower end cap that pass successively on described upper end cap, described the 3rd ring gear, described second ring gear and described first ring gear of screw rod fixed.
Through engagement type planetary gear reducing mechanism in motor gearbox, introducing; Make motor gearbox have the advantage of the little and input and output shaft coaxial line of compact structure, between cog load; Simultaneously; Under the material condition identical, have smaller boundary dimension and weight, be easy to realize the microminiaturization of motor gearbox with mechanical property.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment motor gearbox.
Among the figure: 1, first ring gear; 2, second ring gear; 3, the 3rd ring gear, 4, connection locating stud; 5, upper end cap; 6, output revolving shaft; 7, lower end cap; 8, motor gear; 9, second bearing; 10, shaft block ring; 11, back-up ring is used in the hole; 12, screw rod; 13, clutch shaft bearing.
Embodiment
As shown in Figure 1, a kind of motor gearbox comprises the inner chamber that is formed by upper end cap 5, lower end cap 7 and housings close; Comprise motor gear 8, planetary gear mechanism and output revolving shaft 6 in the inner chamber; Motor gear 8 through with the input gears of planetary gear mechanism, drive output revolving shaft 6, motor gear 8 is positioned on the coaxial line with output revolving shaft 6; Upper end cap 5 is provided with through hole; Output revolving shaft 6 passes the clutch shaft bearing 13 and second bearing 9 that are embedded in the through hole successively and from upper end cap 5, extends out, and clutch shaft bearing 13 employing holes are spacing with back-up ring 11, and second bearing 9 adopts shaft block ring 10 spacing.
Planetary gear mechanism is made up of multiple-stage planetary gear train.
Multiple-stage planetary gear train comprises first ring gear 1, second ring gear 2, the 3rd ring gear 3, connects locating stud 4 and passes on the 3rd ring gear 3, second ring gear 2, first ring gear 1 axially locating hole and location successively and form housing.
Axial mounting hole and lower end cap 7 that screw rod 12 passes on upper end cap 5, the 3rd ring gear 3, second ring gear 2 and first ring gear 1 successively are fixing.
Claims (5)
1. motor gearbox; Comprise the inner chamber that forms by upper end cap, lower end cap and housings close; It is characterized in that: comprise motor gear, planetary gear mechanism and output revolving shaft in the described inner chamber; Described motor gear through with the input gears of described planetary gear mechanism, drive described output revolving shaft, described motor gear and described output revolving shaft are positioned on the coaxial line; Described upper end cap is provided with through hole; Described output revolving shaft passes the clutch shaft bearing and second bearing that are embedded in the described through hole successively and from described upper end cap, extends out, and described clutch shaft bearing adopts the hole spacing with back-up ring, and described second bearing adopts shaft block ring spacing.
2. motor gearbox according to claim 1 is characterized in that: described planetary gear mechanism is made up of multiple-stage planetary gear train.
3. motor gearbox according to claim 1 and 2; It is characterized in that: described first ring gear, second ring gear, the 3rd ring gear of comprising connects locating stud and passes axially locating hole and the described housing of location formation on described the 3rd ring gear, described second ring gear, described first ring gear successively.
4. according to claim 1 or 2 said motor gearboxes, it is characterized in that: axial mounting hole and described lower end cap that screw rod passes on described upper end cap, described the 3rd ring gear, described second ring gear and described first ring gear are successively fixed.
5. according to the said motor gearbox of claim 3, it is characterized in that: axial mounting hole and described lower end cap that screw rod passes on described upper end cap, described the 3rd ring gear, described second ring gear and described first ring gear are successively fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202035730U CN202520875U (en) | 2012-04-24 | 2012-04-24 | Motor gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202035730U CN202520875U (en) | 2012-04-24 | 2012-04-24 | Motor gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520875U true CN202520875U (en) | 2012-11-07 |
Family
ID=47103827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202035730U Expired - Fee Related CN202520875U (en) | 2012-04-24 | 2012-04-24 | Motor gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485270A (en) * | 2014-09-15 | 2016-04-13 | 德昌电机(深圳)有限公司 | Planetary gear speed changer and planetary gear speed changer assembly |
-
2012
- 2012-04-24 CN CN2012202035730U patent/CN202520875U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485270A (en) * | 2014-09-15 | 2016-04-13 | 德昌电机(深圳)有限公司 | Planetary gear speed changer and planetary gear speed changer assembly |
| CN105485270B (en) * | 2014-09-15 | 2019-12-03 | 德昌电机(深圳)有限公司 | Planetary transmission and planetary transmission component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20150424 |
|
| EXPY | Termination of patent right or utility model |