CN105351460A - Differential planet gear transmission - Google Patents
Differential planet gear transmission Download PDFInfo
- Publication number
- CN105351460A CN105351460A CN201510912136.4A CN201510912136A CN105351460A CN 105351460 A CN105351460 A CN 105351460A CN 201510912136 A CN201510912136 A CN 201510912136A CN 105351460 A CN105351460 A CN 105351460A
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- CN
- China
- Prior art keywords
- ring gear
- transmission
- fixed
- gear ring
- inner gear
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- 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
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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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
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a differential planet gear transmission. The differential planet gear transmission comprises an input shaft, a star-shaped frame, at least two planet gears, a fixed inner gear ring, a transmission inner gear ring, a fixed disc and an output shaft, wherein one end of the input shaft is connected with the star-shaped frame; the planet gears are arranged on the star-shaped frame; the front section parts of the planet gears are engaged with the fixed inner gear ring; the transmission inner gear ring is fixed on the fixed disc; the fixed disc is fixed on the output shaft; the fixed inner gear ring and the transmission inner gear ring are different in tooth number; the input shaft drives the star-shaped frame to rotate; the planet gears moving along with the star-shaped frame rotates along the fixed inner gear ring; the back section parts of the planet gears drive the transmission inner gear ring to rotate; and the transmission inner gear ring drives the output shaft to rotate through the fixed disc. The differential planet gear transmission has the characteristics of high specific efficiency, good performance, low consumption, small volume and low cost.
Description
Technical field
The present invention relates to a kind of speed changer, specifically a kind of planetary transmission.
Background technique
Speed changer industry equips one of industry based on China, and this has benefited from the attention to machine-building of industrialization, urbanization and country and is rapidly developed.The various types of high-accuracy speed changer of domestic enterprise's independent research these years in Shanghai the international Higher-end machines people of the international gear transmission equipment exhibition Shang Yu instrument that slows down race on the same stage.This is the important breakthrough of China in industry variable-speed motor field.It, as transmission device requisite in modernization construction, is used in all trades and professions.
Variable-speed motors all types of is at present mainly major function with deceleration, and the general speed reducer of domestic use can be divided into five classes substantially, and they also all also exist respective pluses and minuses in actual applications.1, gear reduction unit is the class speed reducer that number of applications is maximum, it includes cylindrical gear reducer, conical gear reducer and circular cone--the various ways such as cylindrical gear reducer, but in fact, in industry the product system of this type product be substantially all by offshore company dominate, obvious like this growth and the development being unfavorable for domestic speed reducer enterprise, and easily sent out the dispute of product property right, restriction for various reasons, although domestic Duo Jia mechanism makes great efforts to appeal, but be in progress always undesirable, prospect is still uncertain.Gear reduction unit manufactures and designs on block combiner system basis simultaneously, has profuse motor combination, installation form and organization plan, because installation form is various, generally also cumbersome for installation aspect; 2, also commonplace transmission product applied in the market by planet-gear speed reducer, due to the series of advantages that its drive technology has self, also be simultaneously due to China's industry in recent years since fast development, Planetary Gear Transmission technology is made to develop rapidly at home, the load of product also reaches unprecedented level, and the technical performance of product also reaches the level of same kind of products at abroad substantially.But the gear of planet-gear speed reducer not in same in the heart, so when load and moment of torsion larger, to the wearing and tearing of gear, also more and more volume is large, and other speed reducer relatively, planetary speed reducer structure comparison is compact, and revolution gap is little, precision comparison is high, working life is also long, and rated torque exports and can do very large, so its price is very expensive; 3, the main feature of worm type of reduction gearing has reverse self-locking function, larger deceleration ratio can be had, and its input and output axle is not with on an axis, also not in same plane, make its volume general all larger, and efficiency and precision are not high in transmission, there is no obvious advantage in the more and more microminiaturized trend of industrial robot in various industry afterwards.4, cycloidal planetary gear speed reducer is mainly used in the large speed ratio transmission of middle low power, because product performance gap compared with is abroad not little, cycloidal planetary gear speed reducer is produced fewer and feweri in recent years, and many producers have stopped production this series products, then produces the product of other type.Clearly to make it be close to superseded for the multiple performance issue of cycloidal planetary gear speed reducer, and the performance boost realizing product as early as possible with regenerate upgrade be also this speed reducer seek to upgrade can not also not challengeable selection; 5, the velocity ratio of harmonic drive is large, and not only bearing capacity is high for it, and transmission accuracy is high, and efficiency is high.But its shortcoming is also obvious, the flexbile gear of harmonic drive periodically deforms, and thus produces alternating stress, makes it easily to produce fatigue failure.And the moment of its rotary inertia and startup is comparatively large, be not suitable for for above low power tracking transmission, in speed, harmonic wave speed reducing machine can not be used for the occasion that velocity ratio is less than 35.If adopt the harmonic driving of roller wave-generator, its instantaneous transmission ratio is not constant and also has the problems such as radiating condition difference, is not suitable for the occasion being applied to longevity of service; 6, the numerous types of all kinds of mixed drive case, is essentially series special or nonstandard product, as wind-force and hydroelectric power speedup box, Li Mo bamboo uni-drive gear box, large-scale extruder gearbox etc.Along with domestic economy develop rapidly in recent years, the exploitation of mixed drive case and manufacturing all is rapidly developed, Product Level with abroad compare also substantially suitable.Although along with the development of all trades and professions technology, the development & application of such gearbox has very large development space, but it develops and is nowhere near on the basis of above all kinds of transmission machinery, the most basic or to ceaselessly improve moment, wear and tear, the technical problem such as degree of enduring hardships, met the requirement of industrial development.
Summary of the invention
The object of this invention is to provide a kind of efficiency high, performance is good, and consume low, volume is little, the planet difference tooth clutches that cost is low.
For achieving the above object, the technical solution adopted in the present invention is:
Planet difference tooth clutches, comprise input shaft, starframe, at least two planetary pinions, fixing ring gear, transmission ring gear, fixed tray and output shaft, one end of input shaft is connected with starframe, planetary pinion is located on starframe, planetary front section is meshed with fixing ring gear, described transmission ring gear is fixed on fixed tray, fixed tray is fixed on output shaft, described fixing ring gear is not identical with the number of teeth of transmission ring gear, input shaft drives starframe to rotate, the planetary pinion of following starframe movement rotates along fixing ring gear, planetary hindfoot portion drives transmission ring gear to rotate, transmission ring gear drives output shaft rotation by fixed tray.
Further, described planetary pinion is straight-tooth gear.
Beneficial effect of the present invention:
The gear of this speed changer inside is all rotate in coaxial mode, can reduce the radial force of tooth and between cog like this, thus reduces mechanical wear, improves the working life of gear;
Owing to adopting the structural type of above-mentioned poor tooth, the propulsion mode of tooth angle difference greatly strengthen the driving torque of speed changer, just heavy load work can be realized with small-sized motor under certain Gear combination condition, even motor can be embedded into that to synthesize volume in the middle of speed changer less, the integrated speed changer that load is larger, this will cost savings produces material and working space, has efficiency high, the advantage that volume is little and cost is low;
Owing to adopting the structural type of above-mentioned poor tooth, the heat dissipation problem of speed changer is allowed to be readily solved, because its mechanical wear relatively reduces many, the heat that in operation, between part, phase mutual friction produces falls sharply much naturally, the output rating of power also has greatly improved naturally, have efficiency high, performance is good, consumes low feature;
The structure of this speed changer decreases the loaded down with trivial details of the operations such as processing and maintain and replace part, and bring more convenience for user is practical with maintenance, it has very high economic benefit and social benefit, is beneficial to popularize, and is beneficial to industrial development.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sectional view along A-A line shown in Fig. 1.
In figure: 1, input shaft; 2, starframe; 3, planetary pinion; 4, fixing ring gear; 5, transmission ring gear; 6, fixed tray; 7, output shaft; 8, planetary front section; 9, planetary hindfoot portion.
Embodiment
As Fig. 1, shown in 2, planet difference tooth clutches, comprise input shaft 1, starframe 2, at least two planetary pinions 3, fixing ring gear 4, transmission ring gear 5, fixed tray 6 and output shaft 7, one end of input shaft 1 is connected with starframe 2, planetary pinion 3 is located on starframe 2, planetary front section 8 is meshed with fixing ring gear 4, described transmission ring gear 5 is fixed on fixed tray 6, fixed tray 6 is fixed on output shaft 7, described fixing ring gear 4 is not identical with the number of teeth of transmission ring gear 5, input shaft 1 drives starframe 2 to rotate, the planetary pinion 3 of following starframe 2 movement rotates along fixing ring gear 4, planetary hindfoot portion 9 drives transmission ring gear 5 to rotate, transmission ring gear 5 drives output shaft 7 to rotate by fixed tray 6.Described planetary pinion 3 is straight-tooth gear.
Because the number of teeth of fixing ring gear and transmission ring gear is different, so have certain differential seat angle between adjacent other tooth of two teeth being engaged with planetary pinion of fixing ring gear and transmission ring gear, and the differential seat angle of fixing ring gear and transmission ring gear corresponding teeth will inevitably be utilized to be engaged when planetary pinion rotates forward, thus make fixing ring gear and transmission ring gear corresponding next group tooth differential seat angle passive be that zero formation is synchronous.Because fixing ring gear is fixed, so passive at the differential seat angle of tooth group is while zero, transmission ring gear is inevitable also to be followed planetary rotation and rotates, but because fixing ring gear and transmission ring gear have the difference of the number of teeth, so the angular velocity of transmission ring gear rotation and the angular velocity of planetary gear rotation are unequal, thus reach the effect of speed change.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; technological scheme of the present invention is modified or equivalent replacement, do not depart from the protection domain of technical solution of the present invention.
Claims (2)
1. a planet difference tooth clutches, it is characterized in that: comprise input shaft, starframe, at least two planetary pinions, fixing ring gear, transmission ring gear, fixed tray and output shaft, one end of input shaft is connected with starframe, planetary pinion is located on starframe, planetary front section is meshed with fixing ring gear, described transmission ring gear is fixed on fixed tray, fixed tray is fixed on output shaft, described fixing ring gear is not identical with the number of teeth of transmission ring gear, input shaft drives starframe to rotate, the planetary pinion of following starframe movement rotates along fixing ring gear, planetary hindfoot portion drives transmission ring gear to rotate, transmission ring gear drives output shaft rotation by fixed tray.
2. planet difference tooth clutches according to claim 1, is characterized in that: described planetary pinion is straight-tooth gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912136.4A CN105351460A (en) | 2015-12-11 | 2015-12-11 | Differential planet gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912136.4A CN105351460A (en) | 2015-12-11 | 2015-12-11 | Differential planet gear transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351460A true CN105351460A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510912136.4A Pending CN105351460A (en) | 2015-12-11 | 2015-12-11 | Differential planet gear transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351460A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882926A (en) * | 2016-09-30 | 2018-04-06 | 阿尔斯通运输科技公司 | Planetary reducer, the bogie for being equipped with decelerator and supporting rolling stock |
| CN108061146A (en) * | 2016-11-09 | 2018-05-22 | 何汉权 | A kind of small size big retarding ratio is without back clearance retarder |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2244646Y (en) * | 1995-09-05 | 1997-01-08 | 沈培基 | Small tooth difference internal engagement cylindrical straight-teeth double-cycloidal gear pair and its speed reducer |
| CN201412484Y (en) * | 2009-06-09 | 2010-02-24 | 北京丰隆技术有限公司 | Manual film rolling device small tooth number difference planetary deceleration device |
| CN102226463A (en) * | 2011-05-25 | 2011-10-26 | 深圳市琛玛华夏科技有限公司 | Novel speed reducer and speed reduction motor |
| CN202091437U (en) * | 2011-05-25 | 2011-12-28 | 深圳市琛玛华夏科技有限公司 | Novel planetary speed reducer and geared motor |
| CN202560945U (en) * | 2012-01-19 | 2012-11-28 | 廖英洲 | Output shaft disk structure of teeth differential reducer |
| CN202560944U (en) * | 2012-01-19 | 2012-11-28 | 廖英洲 | Positioning disk structure for teeth differential reducer |
| CN103148168A (en) * | 2013-02-21 | 2013-06-12 | 黄希国 | Novel tooth difference speed reducer |
| CN203098758U (en) * | 2013-02-21 | 2013-07-31 | 黄希国 | Novel tooth difference speed reducer |
| CN205371485U (en) * | 2015-12-11 | 2016-07-06 | 梁志光 | Poor tooth -like derailleur of planet |
-
2015
- 2015-12-11 CN CN201510912136.4A patent/CN105351460A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2244646Y (en) * | 1995-09-05 | 1997-01-08 | 沈培基 | Small tooth difference internal engagement cylindrical straight-teeth double-cycloidal gear pair and its speed reducer |
| CN201412484Y (en) * | 2009-06-09 | 2010-02-24 | 北京丰隆技术有限公司 | Manual film rolling device small tooth number difference planetary deceleration device |
| CN102226463A (en) * | 2011-05-25 | 2011-10-26 | 深圳市琛玛华夏科技有限公司 | Novel speed reducer and speed reduction motor |
| CN202091437U (en) * | 2011-05-25 | 2011-12-28 | 深圳市琛玛华夏科技有限公司 | Novel planetary speed reducer and geared motor |
| CN202560945U (en) * | 2012-01-19 | 2012-11-28 | 廖英洲 | Output shaft disk structure of teeth differential reducer |
| CN202560944U (en) * | 2012-01-19 | 2012-11-28 | 廖英洲 | Positioning disk structure for teeth differential reducer |
| CN103148168A (en) * | 2013-02-21 | 2013-06-12 | 黄希国 | Novel tooth difference speed reducer |
| CN203098758U (en) * | 2013-02-21 | 2013-07-31 | 黄希国 | Novel tooth difference speed reducer |
| CN205371485U (en) * | 2015-12-11 | 2016-07-06 | 梁志光 | Poor tooth -like derailleur of planet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882926A (en) * | 2016-09-30 | 2018-04-06 | 阿尔斯通运输科技公司 | Planetary reducer, the bogie for being equipped with decelerator and supporting rolling stock |
| CN107882926B (en) * | 2016-09-30 | 2022-06-17 | 阿尔斯通运输科技公司 | Planetary gear reducer, bogie with same and matched railway vehicle |
| CN108061146A (en) * | 2016-11-09 | 2018-05-22 | 何汉权 | A kind of small size big retarding ratio is without back clearance retarder |
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Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |