CN108050209A - Multiple stage gear reduction motor containing dual planetary gear - Google Patents
Multiple stage gear reduction motor containing dual planetary gear Download PDFInfo
- Publication number
- CN108050209A CN108050209A CN201711216630.2A CN201711216630A CN108050209A CN 108050209 A CN108050209 A CN 108050209A CN 201711216630 A CN201711216630 A CN 201711216630A CN 108050209 A CN108050209 A CN 108050209A
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- gear
- output
- dual planetary
- planetary gear
- motor
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Classifications
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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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Gear Transmission (AREA)
Abstract
The present invention relates to a kind of multiple stage gear reduction motor containing dual planetary gear, the pivot center interlaced arrangement of the output shaft of motor and the first input component makes motor length size no longer limited, so as to improve the draw ratio of motor to improve electric efficiency.Multiple stage gear reduction motor can be applied in the application being limited in axial space, and can realize makes entire decelerating motor axial direction compact dimensions.In addition, the dual planetary gear reducing gear of final output can optimize the gear parameter of each pair of meshing gear to realize big retarding ratio using dual planetary gear structure, and improve load capacity and improve transmission efficiency.In identical output speed, big retarding so contributes to be further reduced motor size and weight than also having using motor speed and power density is improved.In the application that some need output terminal self-locking, when choosing appropriate planetary gear train gear parameter, planetary gear train output terminal reverse self-locking function can be realized.
Description
Technical field
The present invention relates to decelerating motor, more specifically to a kind of multiple stage gear reduction electricity containing dual planetary gear
Machine.
Background technology
The motor shaft of decelerating motor in correlation technique is either parallel with reducing output shaft or is total to reducing output shaft
Axis so that whole axial dimension is excessive.Or the invention is inapplicable or electric in the application of some axially mounted spaces compacts
Machine has to design using the disk type brushless motor of high cost.Some other deceleration such as designed using turbine and worm alternating axis
Motor, for afterbody planetary gear reducing mechanism often using simple planetary structure, reduction ratio is relatively small,
Less planetary gear quantity also limits the overall load ability of decelerating motor.Simple planetary structure also requires sun gear
With ring gear using the module and pressure angle identical with planetary gear, so as to limit by optimizing each pair of meshing gear
Modulus and pressure angular dimensions improve the ability of transmission efficiency and power density.
The content of the invention
The technical problem to be solved in the present invention is, provides a kind of improved multiple stage gear reduction containing dual planetary gear
Motor.
The technical solution adopted by the present invention to solve the technical problems is：Construct a kind of multistage tooth containing dual planetary gear
Decelerating motor is taken turns, including motor, the first reducing gear and dual planetary gear reducing gear；
The motor includes output shaft and motor output, and it is defeated that first reducing gear includes rotatably set first
The first output for entering part and rotatably setting, first input component coordinate to realize that linkage turns with first output
It is dynamic；
The motor output cooperates with first input component, first input component and first to be driven to export
Part rotates, and the axis of the output shaft and the pivot center of first input component are staggered；
The dual planetary gear reducing gear include rotatably set respectively at least two dual planetary gears, one
Deceleration output and the fixation ring gear of a fixed setting,
Each dual planetary gear is rotatably arranged in outside first output, each dual planetary gear
Pivot center is parallel with the pivot center of first output, in the pivot center of the deceleration output and the fixation
The coaxial of the axis of gear ring and first output；
Each dual planetary gear is included side by side and the 4th gear, the 5th gear of integrally connected, the 4th tooth
The gear parameter of wheel is different from the gear parameter of the 5th gear, and each 4th gear is engaged with first output,
Each 4th gear or the 5th gear are engaged with the fixed ring gear；
The dual planetary gear coordinates with the deceleration output, when first output rotates, to drive institute
State dual planetary gear, deceleration output interlocks with the rotation；
The gearratio of the motor output to the deceleration output is more than 1.
Preferably, the gearratio of the motor output to first output is more than 1, first output to institute
The gearratio for stating deceleration output is more than 1.
Preferably, using the engagement cooperation of face gear between the motor output and first input component；Or, the electricity
Coordinated between machine output and first input component using bevel gear；Or, the motor output and first input component
Between using worm and gear coordinate.
Preferably, first input component is structure as a whole with first output, and turn of first input component
Shaft line and the coaxial of first output；Or,
First input component includes first gear, first output include side by side and coaxial integrally connected second
Gear, the 3rd gear, the pivot center of the first gear and the pivot center of first output are arranged in parallel, and described
One gear is engaged with the second gear, and first output is driven to rotate, the 3rd gear and the compound planetary tooth
Wheel engagement, drives the dual planetary gear to rotate.
Preferably, what the deceleration output included rotatably setting rotates body and the rotation with the rotation body
The rotation output that axis coaxle is set, the pivot center of the pivot center and first output for rotating body are same
Axis；
Each dual planetary gear is driven when first output rotates around the first output outer ring rotating,
And the dual planetary gear is allowed to drive the rotation body, rotate output rotation, the rotation output is allowed outwards to export.
Preferably, the deceleration output includes several axis around own axis for each dual planetary gear
Body, each dual planetary gear can be rotatably arranged at the rotation body on each axis body.
Preferably, the deceleration output includes the output ring gear that rotatably sets, the 4th gear and described the
One output and fixed ring gear engage, and the 5th gear is engaged with the output ring gear.
Preferably, the dual planetary gear reducing gear further includes the planet carrier rotatably set, the planet carrier
The coaxial of pivot center and first output, each dual planetary gear are rotatably arranged in the row
It is positioned in carrier and by the planet carrier and supported.
Preferably, the output that rotates is equipped with the key outwards exported or hole.
Preferably, the deceleration output includes pivot center and the 6th tooth of the coaxial of the rotation body
Wheel.
Implement the multiple stage gear reduction motor containing dual planetary gear of the present invention, have the advantages that：Motor
The pivot center interlaced arrangement of output shaft and the first input component makes motor axial length dimension no longer limited, so as to improve electricity
The draw ratio of machine is to improve electric efficiency.Multiple stage gear reduction motor can be applied in the application being limited in axial space, can be with
Realization makes entire decelerating motor axial direction compact dimensions.
In addition, the dual planetary gear reducing gear of final output can be set using dual planetary gear structure to optimize
The parameter of each pair of meshing gear is counted, to realize big retarding ratio, and load capacity is improved and improves transmission efficiency.In identical output speed
When spending, big retarding so contributes to be further reduced motor size and again than also having using improving motor speed and power density
Amount.In the application that some need output terminal self-locking, when choosing appropriate planetary gear train gear parameter, planetary gear train can be realized
Output terminal reverse self-locking function.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is that the reducing transmission structure of the multiple stage gear reduction motor containing dual planetary gear in the embodiment of the present invention is former
Schematic diagram is managed, deceleration output terminal includes dual planetary gear structure；
Fig. 2 is the dual planetary gear reducing gear transmission scheme in another embodiment, and dual planetary gear is rotatable
It is arranged on deceleration transmission principle schematic when rotating on body；
Fig. 3 is that the first input component, the first output in another embodiment are Split type structure and dual planetary gear and turn
The transferring structure principle schematic of multiple stage gear reduction motor during dynamic body engagement cooperation；
Fig. 4 be motor output in Fig. 1 and the first input component for bevel gear cooperation when principle schematic diagram；
Fig. 5 be motor output in Fig. 1 and the first input component for worm and gear cooperation when principle schematic diagram.
Specific embodiment
In order to which the technical features, objects and effects to the present invention are more clearly understood, now compare attached drawing and be described in detail
The specific embodiment of the present invention.
As shown in Figure 1 to Figure 3, the electricity of the multiple stage gear reduction containing dual planetary gear in a preferred embodiment of the invention
Machine includes motor 1, the first reducing gear 2 and dual planetary gear reducing gear 3.Motor 1 includes output shaft 11 and motor
Output 12, outwards exports power.First reducing gear 2 includes the first input component 21 for rotatably setting and rotatably sets
First output 22, the first input component 21 coordinates with the first output 22 to be interlocked with the rotation with realizing.
Output shaft 11 is cooperated by motor output 12 and the first input component 21.It in general, can be on output shaft 11
Motors output 12, the motor outputs 12 such as gear, worm screw is set directly to coordinate with the first input component 21, to drive the first input
21 and first output 22 of part rotates, and the axis of output shaft 11 and the pivot center of the first input component 21 are staggered.Output shaft
The motors such as gear, worm screw for being set on 11 output 12 can be fixedly connected with output shaft 11, can also pass through the connections such as keyhole.
Dual planetary gear reducing gear 3 include rotatably set respectively two or more dual planetary gears 31,
One deceleration output 32 and the fixed ring gear 33 of the annular of fixed setting.
Each dual planetary gear 31 is rotatably arranged in outside the first output 22, the rotation axis of each dual planetary gear 31
Line is parallel with the pivot center of the first output 22, the pivot center of deceleration output 32 and the axis of retainer plate gear 33 with
The coaxial of first output 22.
Each dual planetary gear 31 is included side by side and the 4th gear 311, the 5th gear 312 of integrally connected, the 4th tooth
The gear parameter of wheel 311 is different from the gear parameter of the 5th gear 312, and each 4th gear 311 is engaged with the first output 22, respectively
4th gear 311 or the 5th gear 312 are engaged with fixed ring gear 33.4th gear 311, the 5th gear 312 axis can be with
Coaxially, also can not coaxially, the number of teeth of the gear parameter including gear, modulus, pressure angle, modification coefficient etc..
Dual planetary gear 31 coordinates with deceleration output 32, when the first output 22 rotates, to drive compound planetary
Gear 31, deceleration output 32 interlock with the rotation.The motor output 12 of multiple stage gear reduction motor 1 arrives the biography of deceleration output 32
Dynamic ratio is more than 1, realizes and slows down.
The 4th gear 311, the 5th gear 312 of dual planetary gear 31 can be two numbers of teeth, and modulus and pressure angle are all
Different gears are integrated, respectively from different component engaged transmissions.
Due to the pivot center interlaced arrangement of 11 and first input component 21 of output shaft of motor 1, make 1 length dimension of motor not
It is limited again, so as to improve the draw ratio of motor 1 to improve 1 efficiency of motor.Multiple stage gear reduction electricity in the embodiment of the present invention
Machine can be applied in the application being limited in axial space, and can realize makes entire decelerating motor axial direction compact dimensions.
In addition, the first output 22 is the pinion gear of compound planetary wheel cyclic train, i.e. sun gear, compound planetary is arranged on
The central axes of cyclic train are taken turns, the other component of compound planetary wheel cyclic train is driven to rotate.The compound planetary of final output
Gear reduction 3 can utilize dual planetary gear to realize big retarding ratio, high load and high transmission efficiency.In identical output speed
When spending, big retarding ratio is also beneficial to improve 1 rotating speed of motor and power density, so contribute to be further reduced 1 size of motor and
Weight.In the application that some need output terminal self-locking, when choosing appropriate planetary gear train gear parameter, planetary gear can be realized
It is reverse self-locking function.
The decelerating motor of the present invention for a kind of axial dimension is compact, light-weighted multistage big retarding than electric drive dress
It puts, can realize the big retarding ratio in the axial dimension space for occupying very little and the output of efficient electric drive.
Preferably, the gearratio of the 12 to the first output of motor output 22 is more than 1, and the first output 22 is exported to slowing down
The gearratio of part 32 is more than 1, every primary transmission is made to slow down, big retarding ratio easy to implement.
In some embodiments, motor output 12 is spur pinion, the first input component 21 is face gear, so as to fulfill
The axis interlaced arrangement of 11 and first input component 21 of output shaft.In other embodiments, as shown in figure 4,12 He of motor output
Bevel gear cooperation can also be used between first input component 21, as shown in figure 5, between 12 and first input component 21 of motor output
Worm and gear cooperation can be used, can realize that the power of alternate directions transfers.
In general, the axis of output shaft 11 is vertical with the pivot center of the first input component 21, and in other embodiments, output shaft
The pivot center of 11 axis and the first input component 21 can be also a certain included angle.
As shown in Figure 1, in some embodiments, the first input component 21 is structure as a whole with the first output 22, and first
The coaxial of the pivot center of input component 21 and the first output 22.The output shaft 11 of motor 1 drives the first input component
21st, the first output 22 rotates, and the first output 22 is usually gear, and the diameter of the first input component 21 is more than the first output 22
Diameter.
As shown in figure 3, in other embodiments, the first input component 21 and the first output 22 or Split type structure, two
It is transferred between person by structures such as gears, the first output 22 is driven to rotate.Preferably, the first input component 21 includes first gear
211, the pivot center of first gear 211 and the pivot center of the first output 22 are arranged in parallel.First output 22 is included simultaneously
The second gear 221 of row and coaxial integrally connected, the 3rd gear 222, it is preferable that the number of teeth of second gear 221 is more than first
The number of teeth of gear 211, the 3rd gear 222 is realized when transferring and slowed down.First gear 211 is engaged with second gear 221, is driven
First output 22 rotates, and the 3rd gear 222 is engaged with dual planetary gear 31, and deceleration output 32 is driven to rotate.
When the first input component 21 and the first output 22 are Split type structure, it can be understood as compared in motor 1 and again
Level-one parallel-axes gears reducing gear is added between conjunction planetary gear reducing mechanism 3, to increase total reduction ratio.At this point, the
One output 22 can also realize deceleration transmission between the first input component 21 using kinds of drive such as straight-tooth, helical teeth.
As shown in Fig. 1 and Fig. 3, further, dual planetary gear reducing gear 3 is negative sign differential reducing mechanism, can be real
Now big reduction ratio and transmission efficiency increases with reduction ratio and is reduced.When the appropriate gear parameter of selection, it can be achieved that reversely
Self-locking.
Dual planetary gear reducing gear 3 further includes the fixed ring gear 33 of annular of fixed setting, fixed ring gear 33
The coaxial of axis and the first output 22.
In addition, deceleration output 32 includes the rotation body 321 rotatably set and the rotation axis with rotating body 321
The rotation output 322 of line coaxial arrangement, rotates the pivot center of body 321 and the coaxial of the first output 22,
That is the first output 22, fixed ring gear 33, the pivot center of rotation body 321 are coaxial.
When the first output 22 rotates, each dual planetary gear 31 is driven around 22 outer ring rotating of the first output, and is allowed
Dual planetary gear 31 drives and rotates body 321, rotation output 322 rotates, and rotation output 322 is allowed outwards to export.
As shown in Figure 1, Figure 3, deceleration output 32 is included in the output ring gear 324 rotatably set, the 4th gear 311
It is engaged with the first output 22 and fixed ring gear 33, the 5th gear 312 is engaged with output ring gear 324, is being driven in output
When gear ring 324 rotates, rotation output 322 is allowed to rotate outside output.
As shown in Fig. 2, in other embodiments, dual planetary gear 31 can not be also used in output with rotating body 321
The gear of gear ring 324 is driven.Deceleration output 32 includes several axis bodies 325 for each dual planetary gear 31 around own axes
It rotates, allows each dual planetary gear 31 that can be rotatably arranged at body 321 is rotated on each axis body 325, work as dual planetary gear
31 outside the first output 22 when rotating, and deceleration output 32 is driven to rotate, and allows rotating output 322 and outwards export.
In the corresponding embodiments of Fig. 2, planetary gear train is positive sign mechanism, can realize that the deceleration transmission of relative efficiency is defeated
Go out, but there is no reverse self-locking function.
Motor 1 rotates output after slowing down successively in the first reducing gear 2 and dual planetary gear reducing gear 3
Part 322 outwards exports.Preferably, can special output interface be set on output 322 is rotated.
As shown in Fig. 2, in some embodiments, rotation output 322 can be shaft, turntable, axis hole etc. with rotation body
321 positions rotated, it is preferable that the key outwards exported or hole can be also equipped on output 322 is rotated.Key or hole can conducts
Output interface, outside passing power.
Again as shown in Figure 1, in other embodiments, deceleration output 32 may also comprise pivot center with rotating body 321
Coaxial the 6th gear 323, the 6th gear 323 can be used as output interface, outside passing power.
In some embodiments, as shown in Figure 1, Figure 3, dual planetary gear reducing gear 3 further includes what is rotatably set
The coaxial of planet carrier 34, the pivot center of planet carrier 34 and the first output 22, dual planetary gear 31 are rotatable
Be arranged on planet carrier 34, and support is positioned by planet carrier 34, and each dual planetary gear 31 turns outside the first output 22
When dynamic, planet carrier 34 can be rotated with dual planetary gear 31.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of multiple stage gear reduction motor containing dual planetary gear, which is characterized in that including motor（1）, the first speed reducer
Structure（2）And dual planetary gear reducing gear（3）；
The motor（1）Including output shaft（11）With motor output（12）, first reducing gear（2）Including rotatably setting
The first input component put（21）The first output rotatably set（22）, first input component（21）With described first
Output（22）Cooperation is interlocked with the rotation with realizing；
The motor output（12）With first input component（21）It cooperates, to drive first input component（21）With
First output（22）It rotates, the output shaft（11）Axis and first input component（21）Pivot center staggeredly set
It puts；
The dual planetary gear reducing gear（3）Including at least two dual planetary gears rotatably set respectively（31）、
One deceleration output（32）And the fixation ring gear of fixed setting（33）,
Each dual planetary gear（31）It is rotatably arranged in first output（22）Outside, each compound planetary tooth
Wheel（31）Pivot center and first output（22）Pivot center it is parallel, the deceleration output（32）Rotation axis
Line and the fixed ring gear（33）Axis and first output（22）Coaxial；
Each dual planetary gear（31）Including side by side and the 4th gear of integrally connected（311）, the 5th gear（312）,
4th gear（311）Gear parameter and the 5th gear（312）Gear parameter it is different, each 4th gear
（311）With first output（22）Engagement, each 4th gear（311）Or the 5th gear（312）With it is described solid
Determine ring gear（33）Engagement；
The dual planetary gear（31）With the deceleration output（32）Cooperation, in first output（22）It rotates
When, drive the dual planetary gear（31）, deceleration output（32）It interlocks with the rotation；
The motor output（12）To the deceleration output（32）Gearratio be more than 1.
2. multiple stage gear reduction motor according to claim 1, which is characterized in that the motor output（12）To described
First output（22）Gearratio be more than 1, the first output（22）To the deceleration output（32）Gearratio be more than 1.
3. multiple stage gear reduction motor according to claim 1, which is characterized in that the motor output（12）With it is described
First input component（21）Between using face gear engagement cooperation；Or, the motor output（12）With first input component
（21）Between using bevel gear coordinate；Or, the motor output（12）With first input component（21）Between use worm gear
Worm screw coordinates.
4. multiple stage gear reduction motor according to claim 1, which is characterized in that first input component（21）With it is described
First output（22）It is structure as a whole, and first input component（21）Pivot center and first output（22）'s
Coaxial；Or,
First input component（21）Including first gear（211）, first output（22）Including side by side and coaxial integral
The second gear of connection（221）, the 3rd gear（222）, the first gear（211）Pivot center and first output
（22）Pivot center be arranged in parallel, the first gear（211）With the second gear（221）Engagement drives described first
Output（22）It rotates, the 3rd gear（222）With the dual planetary gear（31）Engagement, drives the deceleration output
（32）It rotates.
5. according to Claims 1-4 any one of them multiple stage gear reduction motor, it is characterised in that；
The deceleration output（32）Including the rotation body rotatably set（321）And with the rotation body（321）'s
The rotation output that coaxial is set（322）, the rotation body（321）Pivot center and first output
（22）Coaxial；
In first output（22）Each dual planetary gear is driven during rotation（31）Around first output（22）
Outer ring rotating, and allow the dual planetary gear（31）Drive the rotation body（321）, rotate output（322）It rotates, allows
The rotation output (322) outwards exports.
6. multiple stage gear reduction motor according to claim 5, which is characterized in that the deceleration output（32）Including supplying
Each dual planetary gear（31）Around several axis bodies of own axis（325）, each dual planetary gear（31）It can
With the rotation body（321）It is rotatably arranged at each axis body（325）On.
7. multiple stage gear reduction motor according to claim 5, which is characterized in that the deceleration output（32）Including can
Rotate the output ring gear set（324）, the 4th gear（311）With first output（22）With fixed ring gear
（33）Engagement, the 5th gear（312）With the output ring gear（324）Engagement.
8. multiple stage gear reduction motor according to claim 7, which is characterized in that the dual planetary gear reducing gear
（3）Further include the planet carrier rotatably set（34）, the planet carrier（34）Pivot center and first output（22）
Coaxial, each dual planetary gear（31）It is rotatably arranged in the planet carrier（34）Above and by the row
Carrier（34）Positioning support.
9. multiple stage gear reduction motor according to claim 5, which is characterized in that the rotation output（322）On set
There are the key outwards exported or hole.
10. multiple stage gear reduction motor according to claim 5, which is characterized in that the deceleration output（32）Including
Pivot center and the rotation body（321）Coaxial the 6th gear（323）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711216630.2A CN108050209A (en) | 2017-11-28 | 2017-11-28 | Multiple stage gear reduction motor containing dual planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711216630.2A CN108050209A (en) | 2017-11-28 | 2017-11-28 | Multiple stage gear reduction motor containing dual planetary gear |
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| Publication Number | Publication Date |
|---|---|
| CN108050209A true CN108050209A (en) | 2018-05-18 |
Family
ID=62120916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711216630.2A Pending CN108050209A (en) | 2017-11-28 | 2017-11-28 | Multiple stage gear reduction motor containing dual planetary gear |
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| US6348022B1 (en) * | 2000-02-18 | 2002-02-19 | Wei A Jin | Planetary gear transmission apparatus |
| CN2926667Y (en) * | 2006-07-04 | 2007-07-25 | 李涛 | Planetary reducer and bow fastened nut dismounting machine therewith |
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| CN102022484A (en) * | 2010-12-06 | 2011-04-20 | 上海锦珠减速器制造有限公司 | Three-stage combined planetary speed reducer and realization method thereof |
| CN203082124U (en) * | 2012-10-25 | 2013-07-24 | 南京星能传动机械有限责任公司 | Large-power NW type grinding machine gear case |
| CN104121335A (en) * | 2013-04-23 | 2014-10-29 | 刘绍全 | Planetary speed reducer with two planetary gears |
| CN107054543A (en) * | 2015-11-16 | 2017-08-18 | 株式会社岛野 | Bicycle Drive Unit |
-
2017
- 2017-11-28 CN CN201711216630.2A patent/CN108050209A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6348022B1 (en) * | 2000-02-18 | 2002-02-19 | Wei A Jin | Planetary gear transmission apparatus |
| CN2926667Y (en) * | 2006-07-04 | 2007-07-25 | 李涛 | Planetary reducer and bow fastened nut dismounting machine therewith |
| CN201318419Y (en) * | 2008-12-24 | 2009-09-30 | 洛阳矿山机械工程设计研究院有限责任公司 | Vertical spiral bevel double-planet speed reducer |
| CN102022484A (en) * | 2010-12-06 | 2011-04-20 | 上海锦珠减速器制造有限公司 | Three-stage combined planetary speed reducer and realization method thereof |
| CN203082124U (en) * | 2012-10-25 | 2013-07-24 | 南京星能传动机械有限责任公司 | Large-power NW type grinding machine gear case |
| CN104121335A (en) * | 2013-04-23 | 2014-10-29 | 刘绍全 | Planetary speed reducer with two planetary gears |
| CN107054543A (en) * | 2015-11-16 | 2017-08-18 | 株式会社岛野 | Bicycle Drive Unit |
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Application publication date: 20180518 |
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