CN102155533A - Planetary gear speed reducer - Google Patents
Planetary gear speed reducer Download PDFInfo
- Publication number
- CN102155533A CN102155533A CN2011100762694A CN201110076269A CN102155533A CN 102155533 A CN102155533 A CN 102155533A CN 2011100762694 A CN2011100762694 A CN 2011100762694A CN 201110076269 A CN201110076269 A CN 201110076269A CN 102155533 A CN102155533 A CN 102155533A
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- Prior art keywords
- gear
- speed reducer
- planetary gear
- housing
- 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
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
The invention discloses a planetary gear speed reducer which comprises output torque shell, a bracket flange, a spline housing, a primary planetary gear train, a secondary planetary gear train and a tertiary planetary gear train, wherein the bracket flange and the shell are assembled together through a bearings; the spline housing is utilized as the high-speed input shaft of the speed reducer; the primary planetary gear train, the secondary planetary gear train and the tertiary planetary gear train transfer an input torque to the shell through a gear in the shell; a tertiary planetary frame of the tertiary planetary gear train is provided with a tertiary planetary frame side plate and five cantilever beam cylinders which are cast together with a planetary frame body; and the bearings at the joint of the shell and the bracket flange are two single-row tapered roller bearings. According to the invention, by utilizing one planetary side plate, the intensity of the planetary frame is increased, and the service life is improved; through the two single-row tapered roller bearings which are installed together correspondingly at an adjustable interval, the loading supporting points of the bearings can be enlarged, and the static loading of the whole planetary gear speed reducer can be improved; and through changing gear materials, a heat processing technology and a manufacturing process, the gear module can be reduced while the gear intensity is improved.
Description
Technical field
The present invention relates to a kind of speed reducer, especially a kind of planet-gear speed reducer.
Background technique
Speed reducer is a kind of device that mates rotating speed and transmitting torque between prime mover and working machine, and utilization is very extensive in modern mechanical.The twentieth century end, the existing very great development of speed reducer technology.Compared with the past, cylindrical gears generally adopts carburizing and quenching, roll flute, and volume was littler when bearing capacity obviously improved, efficient is higher, weight is lighter, noise is lower; Adopt preferred number during design, Dimensions is neat, and the general interchangeability of part is strong; Structural design is more and more diversified, and the speed reducer kind is more and more abundanter, thereby has enlarged using scope.
Characteristics such as speed reducer has starting and work limitation rate height, less energy consumption, noise are low, compact dimensions, aesthetic in appearance, good economy performance are mainly used in the various crane gears such as railway and truck crane, boats and ships, oil field, colliery, harbour.
Yet the high-mechanic of speed reducer, littler volume are a double-edged sword equally.In transmitting the process of big torque the stand under load part especially the intensity of planet carrier often can not increase again and strengthen, using process occur easily that strength member damages in fatigue period may.In addition, speed reducer spring bearing (as mining development machine running part) under some operating modes need bear very big weight, and is most important in cooperating high loading work, and bearing is proposed very high requirement.
Summary of the invention
Damage easily when the little high-mechanic of volume in order to remedy above-mentioned speed reducer, to the demanding defective of bearing, the present invention proposes a kind of planet-gear speed reducer.
A kind of planet-gear speed reducer, comprise housing as the torque output terminal, the flange bracket that is assembled together by bearing with housing, spline housing as speed reducer high speed input shaft, and in housing, input torque is taken turns train by gear transmission to one-level planet wheel train, secondary planet wheel train and the third-level planetary of housing, the third-level planetary frame of third-level planetary wheel train is provided with third-level planetary frame side plate and five and planet carrier body integrally casting overhang cylinder, and the bearing of housing and flange bracket joint is two single-row tapered roller bearings.
Housing is mainly by ring gear, the gear ring end cap that is connected with ring gear one end by bolt and form by the gear ring flange that bolt is connected with the ring gear the other end.
Sun gear and planetary pinion material adopt 18Cr2Ni4WA in the third-level planetary wheel train, use the technology of low-temperature tempering behind the carburizing and quenching, and surface hardness is greater than 58HRC, core hardness 341-367HBS.
The gear of the planetary pinion train of speed reducer adopts fine finishing to stay the technology of roll flute after the mill surplus, and the accuracy of gear is six grades.
The present invention utilizes a planet carrier side plate, increases the intensity of planet carrier, improves the life-span of using; By the single-row tapered roller bearing that (correspondence is installed together) two spacings can be regulated, increase the load-carrying strong point of bearing, improve the static load of complete machine; Increase the strength of gear teeth by changing gear material, heat treatment process, processing technology simultaneously reducing module.
Description of drawings
Fig. 1 is a side-looking generalized section of the present invention;
Wherein, 1, housing, 11, ring gear, 12, gear ring end cap, 13, the gear ring flange, 2, flange bracket, 3, spline housing, 4, single-row taper roller bearing, 5, one-level planet wheel train, 6, secondary planet wheel train, 7, third-level planetary wheel train, 70, third-level planetary frame side plate, 71 overhang cylinders, 72, sun gear, 73, planetary pinion, 74, the third-level planetary frame.
Embodiment
Bottom comes in conjunction with the accompanying drawings that the present invention will be further described.
Referring to Fig. 1, a kind of planet-gear speed reducer, comprise housing 1 as the torque output terminal, the flange bracket 2 that is assembled together by bearing with housing, spline housing 3 as speed reducer high speed input shaft, and the one-level planet wheel train 5 that in housing, input torque is arrived housing by gear transmission, secondary planet wheel train 6 and third-level planetary wheel train 7, the third-level planetary frame 74 of third-level planetary wheel train is provided with the overhang cylinder 71 of third-level planetary frame side plate 70 and five and planet carrier body integrally casting, and the bearing of housing and flange bracket joint is two single-row tapered roller bearings 4.Described spline housing is connected with external power source, pass third-level planetary wheel train, secondary planet wheel train and one-level planet wheel train successively from flange bracket, the planet carrier of third-level planetary wheel train is fixedly connected on the backup flange, and torque is tied to third-level planetary wheel train by one-level planet wheel wheel and transmits step by step.The spacing of two single-row tapered roller bearings of housing and flange bracket joint is adjusted spacing to greatest extent under the overall space condition of limited, make weight drop between the bearings spacing, and the similar two point-supported beam structures of striding have increased bearing capacity.Five overhang cylinders of third-level planetary frame and frame form as integrally casting in the third-level planetary wheel train.Be subjected to radial force very high herein, even at overhang cylindrical root place processing orthodrome, its bearing capacity improves limited, and increase a third-level planetary frame side plate herein, when being subjected to big radial force, power is born by all five overhang cylinders respectively, thereby increases the intensity of whole planet carrier, has improved working life.
Housing is mainly by ring gear 11, the gear ring end cap 12 that is connected with ring gear one end by bolt and form by the gear ring flange 13 that bolt is connected with the ring gear the other end.
Sun gear 72 and planetary pinion 73 materials adopt 18Cr 2Ni 4WA in the third-level planetary wheel train, use the technology of low-temperature tempering behind the carburizing and quenching, and surface hardness is greater than 58HRC, core hardness 341-367HBS.
The gear of the planetary pinion train of speed reducer adopts fine finishing to stay the technology of roll flute after the mill surplus, and the accuracy of gear is six grades.
After the present invention increased third-level planetary frame side plate, the third-level planetary frame was increasing a small amount of axial dimension, and under the situation that radial dimension does not have to increase fully, intensity obviously increases, and the work operating mode has had obviously to be improved.
The present invention adopts new material and technology, in the intensity allowed band, reduce heavily loaded planetary gear train module after, the gear-box overall dimension further reduces, bearing capacity but increases.
Two single-row tapered roller bearings of the present invention have dropped between the two bearings fulcrum coupled equipment center of gravity, and stress is obviously improved.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. planet-gear speed reducer, comprise the housing (1) of exporting torque, the flange bracket (2) that is assembled together by bearing with housing, spline housing (3) as speed reducer high speed input shaft, and the one-level planet wheel train (5) that in housing, input torque is arrived housing by gear transmission, secondary planet wheel train (6) and third-level planetary wheel train (7), it is characterized in that, the third-level planetary frame (74) of third-level planetary wheel train is provided with the overhang cylinder (71) of third-level planetary frame side plate (70) and five and planet carrier body integrally casting, and the bearing of housing and flange bracket joint is two single-row tapered roller bearings (4).
2. a kind of planet-gear speed reducer according to claim 1, it is characterized in that, described housing is mainly by ring gear (11), the gear ring end cap (12) that is connected with ring gear one end by bolt and form by the gear ring flange (13) that bolt is connected with the ring gear the other end.
3. a kind of planet-gear speed reducer according to claim 1, it is characterized in that, sun gear (72) and planetary pinion (73) material adopt 18Cr2Ni4WA in the described third-level planetary wheel train, the technology of low-temperature tempering behind the use carburizing and quenching, surface hardness is greater than 58HRC, core hardness 341-367HBS.
4. a kind of planet-gear speed reducer according to claim 1 is characterized in that, the gear of the planetary pinion train of described speed reducer stays the technology of grinding surplus roll flute after adopting fine finishing, and the accuracy of gear is six grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100762694A CN102155533A (en) | 2011-03-29 | 2011-03-29 | Planetary gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100762694A CN102155533A (en) | 2011-03-29 | 2011-03-29 | Planetary gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102155533A true CN102155533A (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100762694A Pending CN102155533A (en) | 2011-03-29 | 2011-03-29 | Planetary gear speed reducer |
Country Status (1)
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| CN (1) | CN102155533A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511597A (en) * | 2012-06-19 | 2014-01-15 | 罗伯特·博世有限公司 | Planetary gear mechanism, method for connecting same and use of same |
| TWI476335B (en) * | 2012-07-19 | 2015-03-11 | Cosen Mechatronics Co Ltd | Reducer |
| CN104595461A (en) * | 2015-01-16 | 2015-05-06 | 张斐斐 | Connecting device for bevel gear |
| CN107152500A (en) * | 2017-06-13 | 2017-09-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of transmission device, hub unit, wheel heel teeth wheel apparatus and dumper |
| CN107654584A (en) * | 2016-07-25 | 2018-02-02 | 迪尔公司 | Drive component with the rotation housing for being attached to output interface |
| CN110242730A (en) * | 2019-05-28 | 2019-09-17 | 无锡腾马精密机械有限公司 | Planetary reducer sun gear and input shaft, planet carrier package assembly |
| CN110762171A (en) * | 2019-11-28 | 2020-02-07 | 沙洲职业工学院 | Planetary reducer for DELTA robot |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165146A (en) * | 1990-10-30 | 1992-06-10 | Komatsu Ltd | Planetary gear speed reducer |
| CN2198140Y (en) * | 1993-06-17 | 1995-05-24 | 湖北荆州减速机厂 | Planet driving device |
| WO2008037564A1 (en) * | 2006-09-30 | 2008-04-03 | Zf Friedrichshafen Ag | Multi-stage reduction gear |
| CN201381525Y (en) * | 2009-04-18 | 2010-01-13 | 赣州五环机器有限责任公司 | Rotating planetary reducer |
| CN201407320Y (en) * | 2009-05-14 | 2010-02-17 | 陈国章 | Linear transmission structure of three-stage planetary speed reducer |
| CN101852270A (en) * | 2010-06-09 | 2010-10-06 | 江苏驰翔精密齿轮有限公司 | Rotary reducer for crane |
| CN202091433U (en) * | 2011-03-29 | 2011-12-28 | 宁波新宏液压有限公司 | Planetary gear reducer |
-
2011
- 2011-03-29 CN CN2011100762694A patent/CN102155533A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165146A (en) * | 1990-10-30 | 1992-06-10 | Komatsu Ltd | Planetary gear speed reducer |
| CN2198140Y (en) * | 1993-06-17 | 1995-05-24 | 湖北荆州减速机厂 | Planet driving device |
| WO2008037564A1 (en) * | 2006-09-30 | 2008-04-03 | Zf Friedrichshafen Ag | Multi-stage reduction gear |
| CN201381525Y (en) * | 2009-04-18 | 2010-01-13 | 赣州五环机器有限责任公司 | Rotating planetary reducer |
| CN201407320Y (en) * | 2009-05-14 | 2010-02-17 | 陈国章 | Linear transmission structure of three-stage planetary speed reducer |
| CN101852270A (en) * | 2010-06-09 | 2010-10-06 | 江苏驰翔精密齿轮有限公司 | Rotary reducer for crane |
| CN202091433U (en) * | 2011-03-29 | 2011-12-28 | 宁波新宏液压有限公司 | Planetary gear reducer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511597A (en) * | 2012-06-19 | 2014-01-15 | 罗伯特·博世有限公司 | Planetary gear mechanism, method for connecting same and use of same |
| CN103511597B (en) * | 2012-06-19 | 2018-03-30 | 罗伯特·博世有限公司 | Planetary gears and attaching method thereof and purposes |
| TWI476335B (en) * | 2012-07-19 | 2015-03-11 | Cosen Mechatronics Co Ltd | Reducer |
| CN104595461A (en) * | 2015-01-16 | 2015-05-06 | 张斐斐 | Connecting device for bevel gear |
| CN107654584A (en) * | 2016-07-25 | 2018-02-02 | 迪尔公司 | Drive component with the rotation housing for being attached to output interface |
| CN107152500A (en) * | 2017-06-13 | 2017-09-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of transmission device, hub unit, wheel heel teeth wheel apparatus and dumper |
| CN110242730A (en) * | 2019-05-28 | 2019-09-17 | 无锡腾马精密机械有限公司 | Planetary reducer sun gear and input shaft, planet carrier package assembly |
| CN110762171A (en) * | 2019-11-28 | 2020-02-07 | 沙洲职业工学院 | Planetary reducer for DELTA robot |
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Application publication date: 20110817 |