CN111365416A - Combined star wheel speed reducer - Google Patents
Combined star wheel speed reducer Download PDFInfo
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- CN111365416A CN111365416A CN202010198552.3A CN202010198552A CN111365416A CN 111365416 A CN111365416 A CN 111365416A CN 202010198552 A CN202010198552 A CN 202010198552A CN 111365416 A CN111365416 A CN 111365416A
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- layer
- gear
- planet carrier
- planetary gear
- planetary
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H2057/085—Bearings for orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The embodiment of the invention relates to a combined star wheel speed reducer, which comprises: the fixed end, motor, sun gear, upper planetary gear, lower floor's planetary gear, upper planet carrier, middle level planet carrier, lower floor's planet carrier, planet carrier spliced pole, lower floor's ring gear, upper strata ring gear and output. The motor fixed on the fixed end drives the sun gear to rotate, the sun gear drives the upper-layer planetary gear and the lower-layer planetary gear which are meshed with the sun gear to rotate, the upper-layer planetary gear and the lower-layer planetary gear are located on the planet carrier which is an integral planet carrier, and the number of teeth of the upper-layer planetary gear is more than that of the teeth of the lower-layer planetary gear, so that the integral planet carrier obtains differential speed reduction. The differential deceleration speed drives an upper inner gear ring meshed with the upper planetary gear to rotate; the output end fixed with the gear ring in the upper layer rotates along with the gear ring to output. The invention compresses the reduction ratio realized by the 3-stage planetary reducer into two stages, and has smaller volume and higher transmission efficiency under the condition of the same reduction ratio.
Description
Technical Field
The invention relates to the technical field of speed reducers, in particular to a combined star wheel speed reducer.
Background
The planetary gear reducer is an industrial product with wide application, and can reduce the rotating speed of a motor and increase output torque. The planetary gear reducer generally comprises a sun gear, a planet gear and an inner gear ring which are engaged with each other, wherein a shaft of the sun gear is a power input shaft, and a shaft driven by the planet gear carrier or the inner gear ring is an output shaft, so that the reduction of the rotating speed is realized.
However, the reduction ratio of the planetary gear speed reducer is generally smaller, and if a larger reduction ratio is to be realized, the prior art generally adopts a method of connecting multiple stages of planetary gear speed reduction mechanisms in series, but the method can cause that the whole speed reducer is overlong, the size is larger, and the transmission efficiency is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a combined planetary wheel speed reducer, which compresses a large speed reduction ratio which can be realized only by connecting 3-stage planetary wheel speed reducing mechanisms in series into two stages, realizes a larger speed reduction ratio under the condition of the same volume and weight, increases the speed reduction ratio through the difference of the tooth numbers of the upper and lower layers of planetary wheels without increasing the length of the speed reducer, can be used at positions with harsh space requirements, and has high transmission efficiency.
In order to achieve the above object, the present invention provides a combined star-wheel reduction gear comprising:
the fixed end, the motor, the sun gear, the upper layer planetary gear, the lower layer planetary gear, the upper layer planet carrier, the middle layer planet carrier, the lower layer planet carrier, the planet carrier connecting column, the lower layer inner gear ring, the upper layer inner gear ring and the output end;
the motor is fixedly arranged on the fixed end;
the input shaft of the sun gear is connected with the output shaft of the motor, and the motor drives the sun gear to rotate;
the lower-layer planet carrier, the middle-layer planet carrier and the upper-layer planet carrier are arranged in a plane vertical to an output shaft of the motor, a plurality of planet carrier connecting columns are arranged in parallel with the output shaft of the motor, and the upper-layer planet carrier, the middle-layer planet carrier and the lower-layer planet carrier are connected into an integral planet carrier through the planet carrier connecting columns;
the lower-layer planet gears are meshed with the sun gear, are uniformly distributed around the sun gear in a radiation manner, are arranged on the planet carrier connecting column between the lower-layer planet carrier and the middle-layer planet carrier through a bearing, and drive the lower-layer planet gears to rotate;
the upper-layer planet gears are meshed with the sun gear, are uniformly distributed around the sun gear in a radiation manner, are arranged on the planet carrier connecting column between the upper-layer planet carrier and the middle-layer planet carrier through a bearing, and drive the upper-layer planet gears to rotate;
the lower-layer inner gear ring is fixed on the fixed end and meshed with the lower-layer planetary gear, and the lower-layer planetary gear revolves along the sun gear under the action of the lower-layer inner gear ring and drives the integral planet carrier to rotate;
the upper layer inner gear ring is fixed on the output end and meshed with the upper layer planet gear, the number of teeth of the upper layer planet gear is more than that of teeth of the lower layer planet gear, the lower layer planet gear and the upper layer planet gear drive the whole star frame simultaneously, the whole star frame obtains differential deceleration speed, and the differential deceleration speed drives the output end to rotate.
Preferably, the number of the lower planetary gears is the same as the number of the upper planetary gears.
Preferably, the number of teeth of the upper-layer planetary gear is the sum of the number of teeth of the lower-layer planetary gear and an integral multiple of the number of teeth of the lower-layer planetary gear;
the ratio of the number of teeth of the lower-layer planetary gear to the number of the lower-layer planetary gear is an integer.
The embodiment of the invention provides a combined star wheel speed reducer, which compresses a large speed reduction ratio which can be realized only by connecting 3-stage planet wheel speed reducing mechanisms in series into two stages, realizes a larger speed reduction ratio under the condition of the same volume and weight, increases the speed reduction ratio without increasing the length of the speed reducer by the difference of the number of teeth of an upper layer and a lower layer of planet wheels, can be used at a position with strict space requirement, and has high transmission efficiency.
Drawings
FIG. 1 is an internal structural view of a combined planetary reduction gear according to an embodiment of the present invention;
FIG. 2 is a plan view of a combination starwheel reduction unit according to an embodiment of the present invention;
fig. 3 is an assembly view of a lower planetary gear and a lower ring gear of a combined planetary gear reduction device according to an embodiment of the invention;
FIG. 4 is a top view of a lower planetary gear of a combination starwheel reduction according to an embodiment of the present invention;
FIG. 5 is an assembly view of an upper planetary gear and an upper ring gear of a combined planetary gear reduction unit according to an embodiment of the present invention;
fig. 6 is a top view of a combination starwheel reduction unit according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
According to the combined planetary wheel speed reducer provided by the embodiment of the invention, the large speed reduction ratio which can be realized only by connecting 3-stage planetary wheel speed reducing mechanisms in series originally is compressed into two stages, under the condition of the same volume and weight, the larger speed reduction ratio is realized, the speed reduction ratio is increased without increasing the length of the speed reducer through the difference of the tooth numbers of the upper and lower layers of planetary wheels, the combined planetary wheel speed reducer can be used at a position with strict space requirement, and the transmission efficiency is high.
Fig. 1 is an internal structure diagram of a combined star-wheel reduction device according to an embodiment of the present invention, and as shown in fig. 1, the combined star-wheel reduction device includes: the fixed end 1, the motor 2, the sun gear 3, the lower-layer planetary gear 41, the upper-layer planetary gear 42, the lower-layer planet carrier 51, the middle-layer planet carrier 52, the upper-layer planet carrier 53, the lower-layer inner gear ring 61, the upper-layer inner gear ring 62, the planet carrier connecting column 7 and the output end 8.
The motor 2 is fixedly arranged on the fixed end 1 and provides external power input for the speed reducer.
An input shaft of the sun gear 3 is connected with an output shaft of the motor 2, and the motor 2 drives the sun gear 3 to rotate.
Lower floor's planet carrier 51, middle level planet carrier 52 and upper planet carrier 53 set up in the plane perpendicular with the output shaft of motor 2, planet carrier spliced pole 7 be a plurality of and with the output shaft parallel arrangement of motor 2, planet carrier spliced pole 7 links into a whole star frame with upper planet carrier 53, middle level planet carrier 52 and lower planet carrier 51.
The lower planetary gears 41 are in a plurality and are meshed with the sun gear 3, the lower planetary gears are uniformly distributed around the sun gear 3 in a radiation manner, the lower planetary gears are arranged on a planetary carrier connecting column 7 between a lower planetary carrier 51 and a middle planetary carrier 52 through bearings, and the sun gear 3 drives the lower planetary gears 41 to rotate;
the upper-layer planet gears 42 are a plurality of and are meshed with the sun gear 3, are uniformly distributed around the sun gear 3 in a radiation manner, are arranged on a planet carrier connecting column 7 between an upper-layer planet carrier 53 and a middle-layer planet carrier 52 through a bearing, and the sun gear 3 drives the upper-layer planet gears 42 to rotate;
the number of the lower planetary gears 41 is the same as the number of the upper planetary gears 42.
The lower-layer inner gear ring 61 is fixed on the fixed end 1 and is meshed with the lower-layer planetary gear 41, and the lower-layer planetary gear 41 revolves along the sun gear 3 under the action of the lower-layer inner gear ring 61 and drives the whole planet carrier to rotate;
the upper internal gear ring 62 is fixed on the output end 8 and meshed with the upper planetary gear 42, the number of teeth of the upper planetary gear 42 is more than that of the lower planetary gear 41, the lower planetary gear 41 and the upper planetary gear 42 drive the whole planet carrier at the same time, the whole planet carrier obtains differential deceleration speed, and the differential deceleration speed drives the upper internal gear ring 62 and the output end 8 to rotate.
In the running process of the speed reducer, the sun gear 3 drives the lower-layer planetary gear 41, at the moment, the lower-layer planet carrier 51 is used as an output end to obtain a speed V1, and if the upper-layer internal gear ring 62 is fixed, the sun gear 3 drives the upper-layer planetary gear 42, the upper-layer planet carrier 53 is used as an output end to obtain a speed V2, because the upper-layer planet carrier 53 and the lower-layer planet carrier 51 are linked into a whole planet carrier through the planet carrier connecting column 7, and the lower-layer planetary gear 41 and the upper-layer planetary gear 42 simultaneously drive the whole planet carrier, the differential speed reduction speed of the whole planet carrier is V1-; at this time, assuming that the sun gear 3 is fixed, the whole planet carrier is used as an input end (input speed: V1-V2), the inner ring gear 62 of the upper layer is used as an output end, and the optimization is carried out as the equation of the number of teeth:
where g is the number of teeth of the sun gear 3, e is the number of teeth of the lower planetary gear 41, p is the number of lower planetary gears 41, and x is the final reduction ratio to be achieved. If the combined star wheel speed reducer according to the embodiment of the present invention is assembled, the reduction ratio equation is as follows: the ratios of the number of teeth g of the sun gear 3, the number of teeth e of the lower planetary gear 41, and the number p of the lower planetary gear 41 are all integers, and in order to achieve the requirement of minimum volume and maximum reduction ratio, the number of teeth of the upper planetary gear 42 is the sum of the number of teeth e of the lower planetary gear 41 and the integral multiple of the number p of the lower planetary gear 41.
Fig. 2 is a plan view of a combined planetary reduction gear according to an embodiment of the present invention, and as shown in fig. 2, in the operation process of the combined planetary reduction gear, a fixed end 1 is fixed, and an output end 8 rotates.
Fig. 3 is an assembly diagram of a lower planetary gear and a lower ring gear of a combined planetary gear reduction device according to an embodiment of the present invention, and as shown in the drawing, a planet carrier connecting column 7 includes: a planet carrier connecting column 71 with a bearing at the lower part and a planet carrier connecting column 72 with a bearing at the upper part. The lower-layer inner gear ring 61 is fixedly arranged on the fixed end 1, the lower-layer planetary gear 41 is arranged on a bearing of a planet carrier connecting column 71 with a bearing at the lower part and is respectively meshed with the lower-layer inner gear ring 61 and the sun gear 3, the sun gear 3 drives the lower-layer planetary gear 41 to rotate when rotating, and the rotation direction of the lower-layer planetary gear 41 is opposite to the rotation direction of the sun gear 3. Since the lower ring gear 61 is fixed and engaged with the lower planetary gears 41, the lower planetary gears 41 revolve around the sun gear 3 again by the lower ring gear 61, and the revolving direction of the lower planetary gears 41 is the same as that of the sun gear 3.
Fig. 4 is a top view of the lower planetary gear of a combined planetary reduction gear according to an embodiment of the present invention, as shown in the figure, 3 lower planetary gears 41 are mounted on bearings of a planet carrier connecting column 71 with bearings at the lower part and are uniformly distributed around the sun gear 3.
Fig. 5 is an assembly diagram of an upper-layer planetary gear and an upper-layer internal gear ring of a combined planetary gear speed reducer according to an embodiment of the present invention, as shown in the figure, the upper-layer internal gear ring 62 is fixed with the output end 8, the upper-layer planetary gear 42 is mounted on a bearing of a planet carrier connecting column 72 with a bearing at the upper part, and is respectively meshed with the upper-layer internal gear ring 62 and the sun gear 3, since a planet carrier where the upper-layer planetary gear 42 is located and a planet carrier where the lower-layer planetary gear 41 is located are linked into an integral planet carrier by a planet carrier connecting column 7, and assuming that the number of teeth of the upper-layer planetary gear 42 is the same as the number of teeth of the lower-. In the present invention, the number of teeth of the upper planetary gear 42 is changed to make the output end 8 obtain an output speed, specifically, in the present embodiment, the number of teeth of the upper planetary gear 42 is greater than that of the lower planetary gear, the lower planetary gear 41 makes the lower planetary carrier 51 obtain a speed V1 under the action of the sun gear 3 and the fixed lower inner gear ring 61, and assuming that the upper inner gear ring 62 is fixed, the upper planetary gear 42 makes the upper planetary carrier 53 obtain a speed V2 under the action of the sun gear 3 and the fixed upper inner gear ring 62, because the upper planetary carrier 53 and the lower planetary carrier 51 are linked into an integral carrier through a planetary carrier connecting column, and the lower planetary gear 41 and the upper planetary gear 42 drive the integral carrier at the same time, the integral carrier obtains a differential deceleration speed V1-V2. At this time, assuming that the sun gear 3 is fixed, the upper planetary carrier 53 has an input speed (V1-V2), and the output end 8 obtains an output speed.
Fig. 6 is a top view of a combined planetary reduction gear according to an embodiment of the present invention, wherein 3 upper planetary gears 42 are mounted on bearings of a planet carrier connecting column 72 with bearings on the upper portion and evenly distributed around the sun gear 3. The planet carrier connecting column 72 with the bearing at the upper part and the planet carrier connecting column 71 with the bearing at the lower part are alternately and uniformly distributed around the sun gear 3, and the structure can effectively improve the integral stability of the speed reducer.
The embodiment of the invention has the following specific transmission process:
the motor 2 rotates to drive the sun gear 3 coaxially arranged with the motor 2 to rotate, the sun gear 3 drives the lower-layer planetary gear 41 meshed with the sun gear 3 to rotate, the lower-layer planetary gear 41 revolves around the sun gear 3 under the action of the fixed lower-layer inner gear ring 61 meshed with the lower-layer planetary gear 41, meanwhile, the sun gear 3 also drives the upper-layer planetary gear 42 meshed with the sun gear 3 to rotate, because the number of teeth of the upper-layer planetary gear 42 is more than that of the lower-layer planetary gear 41, the upper-layer planetary gear 42 and the lower-layer planetary gear 41 are arranged on the same integral planet carrier, and the lower-layer planetary gear 41 and the upper-layer planetary gear 42 simultaneously drive the integral planet carrier, so the integral planet carrier obtains a differential speed reduction speed. Under the action of the differential deceleration speed, the upper-layer planetary gear 42 drives the upper-layer internal gear 62 engaged with the upper-layer planetary gear 42 to rotate, and the upper-layer internal gear 62 drives the output end 8 to rotate because the upper-layer internal gear 62 is fixed with the output end 8.
Compared with the prior art, the embodiment of the invention provides the combined planetary wheel speed reducer, which compresses a large speed reduction ratio which can be realized only by connecting 3-stage planetary wheel speed reducing mechanisms in series into two stages, realizes a larger speed reduction ratio under the condition of the same volume and weight, increases the speed reduction ratio without increasing the length of the speed reducer through the difference of the number of teeth of the upper and lower layers of planetary wheels, and can be used at positions with strict space requirements. Under the condition of realizing the same reduction ratio, the combined star wheel speed reducer provided by the embodiment of the invention has smaller volume and higher transmission efficiency.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. A combination starwheel reduction unit, characterized in that it comprises:
the fixed end, the motor, the sun gear, the upper layer planetary gear, the lower layer planetary gear, the upper layer planet carrier, the middle layer planet carrier, the lower layer planet carrier, the planet carrier connecting column, the lower layer inner gear ring, the upper layer inner gear ring and the output end;
the motor is fixedly arranged on the fixed end;
the input shaft of the sun gear is connected with the output shaft of the motor, and the motor drives the sun gear to rotate;
the lower-layer planet carrier, the middle-layer planet carrier and the upper-layer planet carrier are arranged in a plane vertical to an output shaft of the motor, a plurality of planet carrier connecting columns are arranged in parallel with the output shaft of the motor, and the upper-layer planet carrier, the middle-layer planet carrier and the lower-layer planet carrier are connected into an integral planet carrier through the planet carrier connecting columns;
the lower-layer planet gears are meshed with the sun gear, are uniformly distributed around the sun gear in a radiation manner, are arranged on the planet carrier connecting column between the lower-layer planet carrier and the middle-layer planet carrier through a bearing, and drive the lower-layer planet gears to rotate;
the upper-layer planet gears are meshed with the sun gear, are uniformly distributed around the sun gear in a radiation manner, are arranged on the planet carrier connecting column between the upper-layer planet carrier and the middle-layer planet carrier through a bearing, and drive the upper-layer planet gears to rotate;
the lower-layer inner gear ring is fixed on the fixed end and meshed with the lower-layer planetary gear, and the lower-layer planetary gear revolves along the sun gear under the action of the lower-layer inner gear ring and drives the integral planet carrier to rotate;
the upper layer inner gear ring is fixed on the output end and meshed with the upper layer planet gear, the number of teeth of the upper layer planet gear is more than that of teeth of the lower layer planet gear, the lower layer planet gear and the upper layer planet gear drive the whole star frame simultaneously, the whole star frame obtains differential deceleration speed, and the differential deceleration speed drives the output end to rotate.
2. The compound starwheel reduction of claim 1, wherein the number of lower planetary gears is the same as the number of upper planetary gears.
3. The combination starwheel reduction of claim 1, wherein the number of teeth of the upper planetary gear is the sum of the number of teeth of the lower planetary gear and an integer multiple of the number of teeth of the lower planetary gear;
the ratio of the number of teeth of the lower-layer planetary gear to the number of the lower-layer planetary gear is an integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198552.3A CN111365416A (en) | 2020-03-20 | 2020-03-20 | Combined star wheel speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198552.3A CN111365416A (en) | 2020-03-20 | 2020-03-20 | Combined star wheel speed reducer |
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| Publication Number | Publication Date |
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| CN111365416A true CN111365416A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010198552.3A Pending CN111365416A (en) | 2020-03-20 | 2020-03-20 | Combined star wheel speed reducer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319627Y (en) * | 1998-02-09 | 1999-05-19 | 铁岭市生产力促进中心 | Multi-shaft duplex gear planetary differential speed reducer |
| DE19845182A1 (en) * | 1998-10-01 | 2000-04-20 | Continental Ag | Planetary gear for with automotive electro-mechanical brake actuator has a sun pinion drive input wheel, a hollow drive output wheel, a fixed wheel and a planetary wheel |
| CN201531567U (en) * | 2009-09-16 | 2010-07-21 | 黄仁华 | Planetary gear reducer |
| CN104121335A (en) * | 2013-04-23 | 2014-10-29 | 刘绍全 | Planetary speed reducer with two planetary gears |
| CN105257783A (en) * | 2015-10-27 | 2016-01-20 | 邹海英 | Reducer with large transmission ratio |
| CN106051122A (en) * | 2016-08-11 | 2016-10-26 | 东莞友联自动化设备科技有限公司 | Reference-circle differential reduction gear |
| CN109538701A (en) * | 2018-03-07 | 2019-03-29 | 深圳市奇诺动力科技有限公司 | Differential planetary transmission |
-
2020
- 2020-03-20 CN CN202010198552.3A patent/CN111365416A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319627Y (en) * | 1998-02-09 | 1999-05-19 | 铁岭市生产力促进中心 | Multi-shaft duplex gear planetary differential speed reducer |
| DE19845182A1 (en) * | 1998-10-01 | 2000-04-20 | Continental Ag | Planetary gear for with automotive electro-mechanical brake actuator has a sun pinion drive input wheel, a hollow drive output wheel, a fixed wheel and a planetary wheel |
| CN201531567U (en) * | 2009-09-16 | 2010-07-21 | 黄仁华 | Planetary gear reducer |
| CN104121335A (en) * | 2013-04-23 | 2014-10-29 | 刘绍全 | Planetary speed reducer with two planetary gears |
| CN105257783A (en) * | 2015-10-27 | 2016-01-20 | 邹海英 | Reducer with large transmission ratio |
| CN106051122A (en) * | 2016-08-11 | 2016-10-26 | 东莞友联自动化设备科技有限公司 | Reference-circle differential reduction gear |
| CN109538701A (en) * | 2018-03-07 | 2019-03-29 | 深圳市奇诺动力科技有限公司 | Differential planetary transmission |
Non-Patent Citations (1)
| Title |
|---|
| 库德里亚夫采夫，基尔佳舍夫: "《行星齿轮传动手册》", 31 December 1986, 北京：冶金工业出版社 * |
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Application publication date: 20200703 |