CN106051122A - Reference-circle differential reduction gear - Google Patents

Reference-circle differential reduction gear Download PDF

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Publication number
CN106051122A
CN106051122A CN201610652796.8A CN201610652796A CN106051122A CN 106051122 A CN106051122 A CN 106051122A CN 201610652796 A CN201610652796 A CN 201610652796A CN 106051122 A CN106051122 A CN 106051122A
Authority
CN
China
Prior art keywords
planetary gear
gear
speed variator
reference circle
main planetary
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.)
Pending
Application number
CN201610652796.8A
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Chinese (zh)
Inventor
马墉良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Youlian Automation Equipment Technology Co Ltd
Original Assignee
Dongguan Youlian Automation Equipment Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan Youlian Automation Equipment Technology Co Ltd filed Critical Dongguan Youlian Automation Equipment Technology Co Ltd
Priority to CN201610652796.8A priority Critical patent/CN106051122A/en
Publication of CN106051122A publication Critical patent/CN106051122A/en
Priority to PCT/CN2017/077648 priority patent/WO2018028204A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/28Toothed gearings for conveying rotary motion with gears having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/028Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/28Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H2001/2881Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The invention relates to the technical field of speed reduction transmission, in particular to a reference-circle differential reduction gear which comprises a supporting housing, an input gear, a planet gear group and an output inner gear ring; the supporting housing is fixedly provided with a fixed inner gear ring; the planet gear group comprises primary planetary gears and secondary planetary gears which are fixedly connected to the primary planetary gears coaxially; the primary planetary gears are engaged with the input gear and the fixed inner ring simultaneously; the secondary planetary gears are engaged with the output inner gear ring; and the diameter of the reference circle of the output inner gear ring is greater than or smaller than that of the reference circle of the fixed inner gear ring. The reference-circle differential reduction gear is simple in structure, is stable in operation, is high in transmission ratio, and further has the advantages of high transmission efficiency, convenience in dismounting and mounting, good rigidity and high transmission precision. The transmission ratio can be 1:5000 or above, and efficiency can be 95% or above. The reference-circle differential reduction gear is small in size and is light in weight, and size of the reference-circle differential reduction gear is reduced by 50%-80% or above in comparison with that of a conventional gear speed reducer; and the reference-circle differential reduction gear is reliable to use, is low in fault rate, is relatively high in creativity and is obvious in progress.

Description

A kind of reference circle subtractive speed variator
Technical field
The present invention relates to deceleration transmission technical field, refer in particular to a kind of reference circle subtractive speed variator.
Background technology
In being currently used for the transmission power mechanism with motion, the range of application of reductor is the most extensive.Almost various Can see its trace in the drive system of machinery, from the transmission work of big power, to Smaller load, accurate angle is transmitted The application of reductor can be seen, and in commercial Application, reductor has deceleration and increases torque functions, the most extensively should Being used in the conversion equipment of speed and moment of torsion, reductor is the mechanism of a kind of power transmission, in needs high torque and be not required to Will the most high-revolving place all to it, and along with industrial expansion and the automatization of factory, it utilizes the need of reductor The amount of asking is growing.
But being currently being widely used reducer with big speed ratio and there is structure complexity, galloping, single staged transmission ratio is little, volume Greatly, it is unreliable to use, and fault is many, and the life-span is short, and noise is big, dismounting inconvenience, is not easy to the problems such as maintenance, and is meeting In the case of big retarding ratio, needing Multi-stage transmission, efficiency is the lowest, poor rigidity, and precision is low, complex manufacturing technology, and defect is obvious.
The harmonic drive of such as harmonic wave speed reducing machine is that the elastic deformation utilizing flexible member controlled comes transmitting movement and power, Its volume is little, precision is the highest, but shortcoming is flexbile gear restricted lifetime, not impact resistance, and rigidity is poor compared with metalwork.Input turns Speed can not be the highest, and general requirement is less than 1500 revs/min, and complex manufacturing technology, cost of manufacture is higher.
For another example planetary reducer, its advantage is that structure comparison is compact, and backhaul gap is little, precision is higher, and service life is the longest, It is the biggest that specified output moment of torsion can do.But it is little that shortcoming is speed reducing ratio, single-stage speed reducing minimum 3, maximum is usually no more than 10, and And often increase primary speed-down precision will reduce by one times, volume also can increase.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in construction, smooth running, and gear ratio is high, volume is little, make With the reference circle subtractive speed variator of life-span length, there is the advantage that transmission efficiency height, easy accessibility, good rigidly and transmission accuracy are high.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of reference circle subtractive speed variator, including supporting housing, input gear, planetary gear set and output ring gear, supports Housing is fixedly installed affixed ring gear, and described planetary gear set includes main planetary gear and is fixedly and coaxially connected with main planetary gear Secondary planetary gear, main planetary gear engage with described input gear and affixed ring gear simultaneously, and pair planetary gear is defeated with described Going out ring gear engagement, the reference diameter of output ring gear is more than or less than the reference diameter of affixed ring gear.
Preferably, described main planetary gear and the planetary quantity of pair are one.
Another is preferred, described planetary gear set include planet stent, plural main planetary gear and with primary planet tooth The secondary planetary gear that wheel connects one to one, plural main planetary gear annular is distributed in planet stent.
Preferably, described planet stent includes two monolateral supports and the bearing pin equal with main planetary gear quantity, main row After star gear and the fixing connection of secondary planetary gear between two monolateral supports, bearing pin is through main planetary gear and secondary planet tooth After wheel, two ends are fixed with two monolateral supports respectively.
Preferably, it is connected by bearing between described support housing with output ring gear.
Preferably, described support housing is connected with the outer ring interference fit of bearing, output ring gear and the inner ring mistake of bearing It is full of and is connected.
Preferably, described output ring gear connects output lid.
Preferably, described input gear connects power shaft, and main planetary gear and secondary planetary gear are straight tooth column tooth Wheel or helical gears.
Preferably, described main planetary gear and secondary planetary gear connect by screw is fixing.
The beneficial effects of the present invention is:
The invention provides a kind of reference circle subtractive speed variator, the reference circle subtractive speed variator simple in construction of the present invention, fortune Turning steadily, gear ratio is big, and speed reducing ratio can accomplish more than 5000, and lightweight, volume is little, and precision is high (within 1 point), and power shaft turns Speed can be with 15000 revs/min, and volume is the 20% of other reductors of Same Efficieney, and suitable big retarding opens than occasion and heavy duty The dynamic reductor used.
Use the reductor of technique scheme, have following features compared with tradition reductor,
1, single staged transmission ratio is big, input and output shaft on the same axis, maximum saving installing space;
2, parts count is little, and transmission accuracy is higher, smooth running, and noise is little, and efficiency is high, and service life is long;
3 easy accessibility, easy to maintenance;
4, it is particularly suitable for robots arm joint, Aero-Space and big retarding and than occasion and requires that the occasion of precision drive makes With;
5, volume is little, and moment of torsion is big, and simple in construction, cost of manufacture is low, is low energy consumption environment-friendly products, may replace in the market All reductor products.
To sum up, the reference circle subtractive speed variator simple in construction of the present invention, smooth running, gear ratio is high, also has transmission effect The advantage that rate height, easy accessibility, good rigidly and transmission accuracy are high.Gear ratio up to for more than 1: 5000, efficiency up to 95% with On.Volume is little, lightweight, reduces more than 50%-80% than conventional gears reductor volume, uses reliable, and failure rate is low is created Property higher, progressive substantially.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of reference circle subtractive speed variator embodiment one of the present invention.
Fig. 2 is the cross-sectional view of A-A in Fig. 1.
Fig. 3 is the cross-sectional view of reference circle subtractive speed variator embodiment two of the present invention.
Fig. 4 is the cross-sectional view of reference circle subtractive speed variator embodiment three of the present invention.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing below in conjunction with embodiment Bright, that embodiment is mentioned content not limitation of the invention.
It is the embodiment one of a kind of reference circle subtractive speed variator as depicted in figs. 1 and 2, including supporting housing 1, input gear 2, planetary gear set and output ring gear 3, support housing 1 and be fixedly installed affixed ring gear 4, and described planetary gear set includes primary planet Gear 5 and the secondary planetary gear 6 being fixedly and coaxially connected with main planetary gear 5, with described input gear 2 while of main planetary gear 5 Engaging with affixed ring gear 4, secondary planetary gear 6 engages with described output ring gear 3, and the reference diameter of output ring gear 3 is big In or less than the reference diameter of affixed ring gear 4.
During the deceleration transmission of reference circle subtractive speed variator, as a example by the motor of 1200 revs/min, motor Main shaft is transferred to main planetary gear 5, secondary planetary gear 6 and main planetary gear 5 synchronous axial system by input gear 2, and by moment of torsion It is transferred to export ring gear 3, and owing to secondary planetary gear 6 revolves round the sun along with the autobiography of planet stent 7 with main planetary gear 5, if solid The reference diameter ratio connecing ring gear 4 and output ring gear 3 is 100: 99, and the indexing of input gear 2 and main planetary gear 5 Circular diameter ratio is 1: 6, the gear ratio of the input gear of reference circle subtractive speed variator the most of the present invention 2 and output ring gear 3 is 6 × 100-99 × 100, this gear ratio is 600, i.e. revolution be 1200 revs/min power shaft 12 through this deceleration device deceleration it After, the rotating speed of output shaft is 2 revs/min.
The reference circle subtractive speed variator simple in construction of the present invention, smooth running, gear ratio is big, and speed reducing ratio can accomplish 5000 Above, lightweight, volume is little, and precision is high, and within 1 point, power shaft 12 rotating speed can be with 15000 revs/min, and volume is equal The 20% of other reductors of power, the reductor that suitable big retarding uses than occasion and heavy load starting.
Use the reductor of technique scheme, have a following features compared with tradition reductor:
1, single staged transmission ratio is big, input and output shaft on the same axis, maximum saving installing space;
2, parts count is little, and transmission accuracy is higher, smooth running, and noise is little, and efficiency is high, and service life is long;
3 easy accessibility, easy to maintenance;
4, it is particularly suitable for robots arm joint, Aero-Space and big retarding and than occasion and requires that the occasion of precision drive makes With;
5, volume is little, and moment of torsion is big, and simple in construction, cost of manufacture is low, is low energy consumption environment-friendly products, may replace in the market All reductor products.
To sum up, the reference circle subtractive speed variator simple in construction of the present invention, smooth running, gear ratio is high, also has transmission effect The advantage that rate height, easy accessibility, good rigidly and transmission accuracy are high.Single staged transmission ratio is more than 1: 5000, efficiency up to 95% with On.Volume is little, lightweight, reduces more than 50%-80% than conventional gears reductor volume, uses reliable, and failure rate is low is created Property higher, progressive substantially.
In the present embodiment, described input gear 2 connects power shaft 12, and main planetary gear 5 and secondary planetary gear 6 are directly Tooth roller gear or helical gears, this power shaft 12 can be the main shaft of motor, it is also possible to by shaft coupling and motor It is in transmission connection, easy to use;Use straight spur gear can effectively reduce difficulty of processing and the production cost of reductor, use tiltedly Tooth roller gear then can effectively reduce the noise of reductor, runs more steady, and transmission accuracy is higher.
In the present embodiment, described planetary gear set include planet stent 7, two main planetary gear 5 and with main planetary gear 5 The secondary planetary gear 6 connected one to one, the main planetary gear 5 of two is symmetrically arranged in planet stent 7.Concrete, described row Prong frame 7 includes two monolateral supports 8 and the bearing pin 9 equal with main planetary gear 5 quantity, main planetary gear 5 and secondary planet tooth After the fixing connection of wheel 6 between two monolateral supports 8, bearing pin 9 passes two ends after main planetary gear 5 and secondary planetary gear 6 Fix with two monolateral supports 8 respectively.This planet stent 7 is used for playing a supportive role main planetary gear 5 and secondary planetary gear 6, Avoid two main planetary gears 5 inconsistent with secondary planetary gear 6 rotating speed and affect the transmission efficiency of reductor.Preferably embodiment party Formula is to be equiped with bearing between bearing pin 9 and main planetary gear 5 and secondary planetary gear 6, for reducing friction between the two, reduces The caloric value of decelerator, extends planetary gear set service life.
Preferably, it is connected by bearing 10 between described support housing 1 with output ring gear 3, wherein, described support housing 1 is connected with the outer ring interference fit of bearing 10, and output ring gear 3 is connected with the inner ring interference fit of bearing 10.Thus effectively protect Demonstrate,prove unique degree of freedom of described output ring gear 3, it is to avoid output ring gear 3 departs from from reductor, the globality of reductor Better.
In the present embodiment, described output ring gear 3 connects output lid 11, when the reductor of the present invention is for robot Time upper, it is also possible to directly next stage mechanical arm or mechanical paw are fixed on output lid 11, further enhance this and subtract The practicality of speed machine and popularity.
It is illustrated in figure 3 the embodiment two of a kind of reference circle subtractive speed variator, exists with the difference of above-described embodiment one In: described main planetary gear 5 and secondary planetary gear 6 connect by screw 13 is fixing, further reduce planetary gear set part Difficulty of processing and dismounting difficulty, safeguard and overhaul convenient.
In the present embodiment, described output ring gear 3 connects output lid 11, and this output lid 11 connects has output shaft even Connect, be used for installing belt wheel or shaft coupling, easy to assembly.
It is illustrated in figure 4 the embodiment three of a kind of reference circle subtractive speed variator, exists with the difference of above-described embodiment two In: the quantity of described main planetary gear 5 and secondary planetary gear 6 is one, and structure is simpler, and manufacturing cost is lower, suitableeer Little for driving torque, the toy art that required precision is the highest.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (9)

1. a reference circle subtractive speed variator, including supporting housing (1), input gear (2), planetary gear set and output ring gear (3), support housing (1) and be fixedly installed affixed ring gear (4), it is characterised in that: described planetary gear set includes main planetary gear (5) the secondary planetary gear (6) and with main planetary gear (5) being fixedly and coaxially connected, with described input tooth while of main planetary gear (5) Wheel (2) and affixed ring gear (4) engagement, secondary planetary gear (6) is engaged with described output ring gear (3), exports ring gear (3) Reference diameter is more than or less than the reference diameter of affixed ring gear (4).
Reference circle subtractive speed variator the most according to claim 1, it is characterised in that: described main planetary gear (5) and secondary row The quantity of star gear (6) is one.
Reference circle subtractive speed variator the most according to claim 1, it is characterised in that: described planetary gear set includes planet stent (7), plural main planetary gear (5) and the secondary planetary gear (6) that connects one to one with main planetary gear (5), two Above main planetary gear (5) annular is distributed in planet stent (7).
Reference circle subtractive speed variator the most according to claim 3, it is characterised in that: described planet stent (7) includes two Monolateral support (8) and the bearing pin (9) equal with main planetary gear (5) quantity, main planetary gear (5) and secondary planetary gear (6) are solid Fixed connect after be positioned between two monolateral supports (8), bearing pin (9) is through main planetary gear (5) and secondary planetary gear (6) afterwards two End is fixed with two monolateral supports (8) respectively.
Reference circle subtractive speed variator the most according to claim 1, it is characterised in that: described support housing (1) is interior with output Connected by bearing (10) between gear ring (3).
Reference circle subtractive speed variator the most according to claim 5, it is characterised in that: described support housing (1) and bearing (10) outer ring interference fit connects, and output ring gear (3) is connected with the inner ring interference fit of bearing (10).
Reference circle subtractive speed variator the most according to claim 1, it is characterised in that: described output ring gear (3) connects to be had Output lid (11).
Reference circle subtractive speed variator the most according to claim 4, it is characterised in that: described input gear (2) connection has defeated Entering axle (12), main planetary gear (5) and secondary planetary gear (6) are straight spur gear or helical gears, bearing pin (9) with It is equiped with bearing between main planetary gear (5) and secondary planetary gear (6).
Reference circle subtractive speed variator the most according to claim 1, it is characterised in that: described main planetary gear (5) and secondary row Star gear (6) connects by screw (13) is fixing.
CN201610652796.8A 2016-08-11 2016-08-11 Reference-circle differential reduction gear Pending CN106051122A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610652796.8A CN106051122A (en) 2016-08-11 2016-08-11 Reference-circle differential reduction gear
PCT/CN2017/077648 WO2018028204A1 (en) 2016-08-11 2017-03-22 Pitch-circle differential speed-reduction device

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Application Number Priority Date Filing Date Title
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107461460A (en) * 2017-09-11 2017-12-12 马墉良 Modified reference circle subtractive speed variator
CN107489737A (en) * 2017-08-11 2017-12-19 周凤艳 A kind of speed difference transmission mechanism and differential speed reducer
WO2018028204A1 (en) * 2016-08-11 2018-02-15 谭国荣 Pitch-circle differential speed-reduction device
CN108105339A (en) * 2018-02-09 2018-06-01 佛山市驰康医疗器材有限公司 The straight machine of dental handpiece speedup
CN109931369A (en) * 2019-04-16 2019-06-25 高昌德 A kind of synchronization discrepancy benefit retarder
CN110259921A (en) * 2018-10-30 2019-09-20 沈万伦 A kind of duplicate rows astrolabe gearbox
CN110500386A (en) * 2019-07-29 2019-11-26 广东大市智能装备有限公司 A kind of differential teeth planetary gear reduction unit
CN110858743A (en) * 2018-08-24 2020-03-03 日本电产株式会社 Speed reduction device and electromechanical device
CN111365416A (en) * 2020-03-20 2020-07-03 北京铁甲钢拳科技有限公司 Combined star wheel speed reducer
CN111720498A (en) * 2020-07-02 2020-09-29 江苏胜立特机械有限公司 Small-size planetary gear reducer with large transmission ratio
CN114517826A (en) * 2022-01-25 2022-05-20 中国船舶重工集团公司第七0三研究所 Superspeed multistage planetary gear box structure

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CN113915296A (en) * 2021-10-25 2022-01-11 常州市光卓传动设备有限公司 Planet wheel transmission mechanism
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CN2926667Y (en) * 2006-07-04 2007-07-25 李涛 Planetary reducer and bow fastened nut dismounting machine therewith
KR20100097564A (en) * 2009-02-26 2010-09-03 유순기 Fixed ring gear fixing device of planetary gear reducer
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028204A1 (en) * 2016-08-11 2018-02-15 谭国荣 Pitch-circle differential speed-reduction device
CN107489737A (en) * 2017-08-11 2017-12-19 周凤艳 A kind of speed difference transmission mechanism and differential speed reducer
CN107461460A (en) * 2017-09-11 2017-12-12 马墉良 Modified reference circle subtractive speed variator
CN108105339A (en) * 2018-02-09 2018-06-01 佛山市驰康医疗器材有限公司 The straight machine of dental handpiece speedup
CN108105339B (en) * 2018-02-09 2024-05-10 佛山市驰康医疗器材有限公司 Dental handpiece speed-increasing straight machine
CN110858743B (en) * 2018-08-24 2022-04-29 日本电产株式会社 Speed reduction device and electromechanical device
CN110858743A (en) * 2018-08-24 2020-03-03 日本电产株式会社 Speed reduction device and electromechanical device
CN110259921A (en) * 2018-10-30 2019-09-20 沈万伦 A kind of duplicate rows astrolabe gearbox
CN110259921B (en) * 2018-10-30 2024-04-26 沈万伦 Double-planetary-disc gearbox
CN109931369A (en) * 2019-04-16 2019-06-25 高昌德 A kind of synchronization discrepancy benefit retarder
CN110500386A (en) * 2019-07-29 2019-11-26 广东大市智能装备有限公司 A kind of differential teeth planetary gear reduction unit
CN111365416A (en) * 2020-03-20 2020-07-03 北京铁甲钢拳科技有限公司 Combined star wheel speed reducer
CN111720498A (en) * 2020-07-02 2020-09-29 江苏胜立特机械有限公司 Small-size planetary gear reducer with large transmission ratio
CN114517826A (en) * 2022-01-25 2022-05-20 中国船舶重工集团公司第七0三研究所 Superspeed multistage planetary gear box structure

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Application publication date: 20161026