CN109442005A - High-speed planetary gear train reducer structure with large speed ratio - Google Patents
High-speed planetary gear train reducer structure with large speed ratio Download PDFInfo
- Publication number
- CN109442005A CN109442005A CN201811619979.5A CN201811619979A CN109442005A CN 109442005 A CN109442005 A CN 109442005A CN 201811619979 A CN201811619979 A CN 201811619979A CN 109442005 A CN109442005 A CN 109442005A
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- Prior art keywords
- planet carrier
- outer circumference
- circumference surface
- gear
- reducer structure
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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.)
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 34
- 244000309464 bull Species 0.000 claims description 42
- 238000005096 rolling process Methods 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 210000003464 cuspid Anatomy 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Friction Gearing (AREA)
Abstract
A large-speed-ratio high-speed planetary gear train reducer structure comprises a planetary carrier, planetary wheels, a sun wheel and a large gear ring, wherein the planetary wheels are installed on the planetary carrier through planetary wheel shafts, the sun wheel is arranged in the planetary carrier, the sun wheel is meshed with the planetary wheels and floats, thrust roller bearings are sleeved on outer circumferential surfaces of two ends of the sun wheel, one end of each thrust roller bearing is abutted against the outer circumferential surface of the sun wheel, the other end of each thrust roller bearing is abutted against the inner wall of the planetary carrier, inner teeth are arranged on the inner circumferential surface of the large gear ring and meshed with the planetary wheels, outer teeth for power output are arranged on the outer circumferential surface of the large gear ring, the inner circumferential surface of the large gear ring is fixed on the outer circumferential surface of one end of the planetary carrier through a deep groove ball bearing. The design has the advantages of simple and compact structure, wide application range, good operation stability, high bearing capacity, high reliability and long service life, and can offset the axial force.
Description
Technical field
It is main suitable the present invention relates to a kind of retarder more particularly to a kind of large speed ratio high-speed planets system reducer structure
For simplifying reducer structure, expanding the retarder scope of application.
Background technique
Retarder is that matching revolving speed and driving torque are played between prime mover and working machine or prime mover and executing agency
Effect, retarder is a kind of relatively accurate machinery, and the purpose using it is to reduce revolving speed, increases torque.Existing retarder
It is essentially all that planet carrier floats, while by planet carrier output power, the planetary system deceleration mechanism of this form is suitable for dynamic
Power outputs and inputs the case where coaxial line, if not coaxial, needs to install gear, axial length and lengthening on planet carrier；
In addition, since planet carrier dynamic balancing is difficult to be done well, it is less suitable for use in high speed situation.
Summary of the invention
The purpose of the present invention is overcome the problems, such as it is existing in the prior art structure is complicated, the defect of narrow application range and, mention
The large speed ratio high-speed planets system reducer structure simple, applied widely for a kind of structure.
In order to achieve the above object, the technical solution of the invention is as follows: a kind of large speed ratio high-speed planets system retarder knot
Structure, including planet carrier, planetary gear, sun gear, the planetary gear are connected with planet wheel spindle, and planet wheel spindle is connected with planet carrier
It connects；
The sun gear is arranged in planet carrier, and sun gear is meshed with planetary gear, and sun gear floats, described planet carrier one end
Outer circumference surface on be set with bull gear, the other end and the speed reducer housing of planet carrier are linked together, the inner circle of the bull gear
Internal tooth is provided on circumferential surface, internal tooth is meshed with planetary gear, is provided on the outer circumference surface of bull gear for the outer of power output
Tooth.
Thrust bearing is set on the outer circumference surface at the sun gear both ends, one end of the thrust bearing is resisted against too
On the outer circumference surface of sun wheel, the other end of thrust bearing is resisted against on the inner wall of planet carrier.
Position on the outer circumference surface of the sun gear close to sun gear input terminal is set with hole snap ring, the hole card
Ring is mounted in the No.1 mounting groove of planet carrier inner wall, and the end face of hole snap ring is in contact with the end face of thrust bearing.
No.1 spline is provided on the outer circumference surface of the sun gear input terminal.
The thrust bearing is thrust roller bearing.
No. two splines are provided on the outer circumference surface of the planet carrier, planet carrier is connected by No. two splines and reducer shell
It is integrated.
Position on the inner peripheral surface of the bull gear positioned at internal tooth two sides is set with rolling bearing, the rolling bearing
Inner ring be sleeved on the outer circumference surface of planet carrier.
Position on the outer circumference surface of the planet carrier positioned at bull gear side is provided with stage portion, stage portion and the axis of rolling
The inner ring held is in contact, and the position on the outer circumference surface of the planet carrier positioned at the bull gear other side offers No. two mounting grooves,
Axis snap ring is installed, axis is in contact with snap ring with the inner ring of rolling bearing in No. two mounting grooves.
The rolling bearing is deep groove ball bearing.
Compared with prior art, the invention has the benefit that
1, sun gear is arranged in planet carrier in a kind of large speed ratio high-speed planets of the invention system reducer structure, sun gear and row
Star-wheel is meshed, and sun gear floats, and is set with bull gear on the outer circumference surface of planet carrier one end, the other end of planet carrier with subtract
Fast device shell is linked together, and internal tooth is provided on the inner peripheral surface of bull gear, and internal tooth is meshed with planetary gear, the outer circle of bull gear
The external tooth for power output is provided on circumferential surface；Power is inputted by sun gear in above-mentioned design, is passed to via planetary gear
Bull gear, and outputed power by the external tooth of bull gear, it is not only simple in structure in this way, and be suitable for high speed situation.Therefore,
It is the configuration of the present invention is simple, applied widely.
2, it is covered on the outer circumference surface at sun gear both ends in a kind of large speed ratio high-speed planets of the invention system reducer structure
Equipped with thrust bearing, one end of thrust bearing is resisted against on the outer circumference surface of sun gear, and the other end of thrust bearing is against being expert at
It, can be by the axial force transmission of sun gear to planet carrier, and outside planet carrier and retarder by thrust bearing on the inner wall of carrier
Shell is linked together, to counteract axial force；Position on the outer circumference surface of sun gear close to sun gear input terminal is set with hole
With snap ring, hole is mounted in the No.1 mounting groove of planet carrier inner wall with snap ring, the end face of hole snap ring and the end face of thrust bearing
It is in contact, axially position is carried out to thrust bearing with snap ring using hole, not only increases the unfailing performance of reducer structure, and
Improve the service life of thrust bearing；Thrust bearing is thrust roller bearing, and it is higher that thrust roller bearing is suitable for revolving speed
Occasion.Therefore, the present invention can not only offset the axial force of sun gear, but also improve the unfailing performance of retarder and use the longevity
Life.
3, it is set on the outer circumference surface of sun gear input terminal in a kind of large speed ratio high-speed planets of the invention system reducer structure
It is equipped with No.1 spline, No. two splines are provided on the outer circumference surface of planet carrier, planet carrier passes through No. two splines and reducer shell
It is linked together；Sun gear is connect using spline with power input part in above-mentioned design, and planet carrier uses spline and reducing gearbox
Body is linked together, not only compact-sized, simple installation, but also can offset axial force.Therefore, the present invention it is not only compact-sized,
Simple installation, and axial force can be offset.
4, it is located at internal tooth on the inner peripheral surface of bull gear in a kind of large speed ratio high-speed planets of the invention system reducer structure
The position of two sides is set with rolling bearing, and the inner ring of rolling bearing is sleeved on the outer circumference surface of planet carrier, using the axis of rolling
It honours bull gear to be positioned, not only bull gear is made to run smoothly, but also improve the bearing capacity of bull gear, in addition, above-mentioned
Design can be by axial force transmission to planet carrier, to offset axial force；It is located at bull gear side on the outer circumference surface of planet carrier
Position be provided with stage portion, stage portion is in contact with the inner ring of rolling bearing, on the outer circumference surface of planet carrier be located at bull gear
The position of the other side offers No. two mounting grooves, is equipped with axis snap ring in No. two mounting grooves, axis snap ring and rolling bearing
Inner ring is in contact, and carries out axially position to rolling bearing with snap ring using stage portion and axis, prevents rolling bearing axial direction play, mention
The high unfailing performance of reducer structure, the service life for improving rolling bearing；Rolling bearing is deep groove ball bearing, deep-groove ball
Bearing is suitable for the higher occasion of revolving speed, and extremely durable.Therefore, the present invention not only injection volume and good operational stability, bearing capacity it is high, can
The high, long service life by property, and axial force can be offset.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure: planet carrier 1, No. two spline 11, stage portion 12, planetary gear 2, sun gear 3, sun gear input terminal 31, No.1
Spline 32, planet wheel spindle 4, bull gear 5, internal tooth 51, external tooth 52, thrust bearing 6, hole snap ring 7, rolling bearing 8, axis snap ring
9。
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1, a kind of large speed ratio high-speed planets system reducer structure, including planet carrier 1, planetary gear 2, sun gear 3,
The planetary gear 2 is connected with planet wheel spindle 4, and planet wheel spindle 4 is connected with planet carrier 1；
The sun gear 3 is arranged in planet carrier 1, and sun gear 3 is meshed with planetary gear 2, and sun gear 3 floats, the planet
Bull gear 5 is set on the outer circumference surface of 1 one end of frame, the other end and the speed reducer housing of planet carrier 1 are linked together, the canine tooth
It is provided with internal tooth 51 on the inner peripheral surface of circle 5, internal tooth 51 is meshed with planetary gear 2, is arranged on the outer circumference surface of bull gear 5 useful
In the external tooth 52 of power output.
Be set with thrust bearing 6 on the outer circumference surface at 3 both ends of sun gear, one end of the thrust bearing 6 against
On the outer circumference surface of sun gear 3, the other end of thrust bearing 6 is resisted against on the inner wall of planet carrier 1.
Position on the outer circumference surface of the sun gear 3 close to sun gear input terminal 31 is set with hole snap ring 7, the hole
It is mounted on snap ring 7 in the No.1 mounting groove of 1 inner wall of planet carrier, the end face of hole snap ring 7 connects with the end face of thrust bearing 6
Touching.
No.1 spline 32 is provided on the outer circumference surface of the sun gear input terminal 31.
The thrust bearing 6 is thrust roller bearing.
No. two splines 11 are provided on the outer circumference surface of the planet carrier 1, planet carrier 1 passes through No. two splines 11 and retarder
Shell is linked together.
Position on the inner peripheral surface of the bull gear 5 positioned at 51 two sides of internal tooth is set with rolling bearing 8, the rolling
The inner ring of bearing 8 is sleeved on the outer circumference surface of planet carrier 1.
Position on the outer circumference surface of the planet carrier 1 positioned at 5 side of bull gear is provided with stage portion 12, stage portion 12 with
The inner ring of rolling bearing 8 is in contact, and the position on the outer circumference surface of the planet carrier 1 positioned at 5 other side of bull gear offers two
Number mounting groove is equipped with axis snap ring 9 in No. two mounting grooves, and axis is in contact with snap ring 9 with the inner ring of rolling bearing 8.
The rolling bearing 8 is deep groove ball bearing.
The principle of the present invention is described as follows:
The design proposes a kind of large speed ratio high-speed planets system reducer structure, and power is inputted by sun gear, via planetary gear
It is transferred to bull gear, by the external tooth of bull gear (inside and outside bull gear with teeth), is outputed power.The large speed ratio high-speed planets
It is that reducer structure is floated using sun gear；Planetary gear is connect by planet wheel spindle with planet carrier, and planet carrier passes through itself spline
(but being not limited to spline) is linked together with reducer shell；Bull gear is supported by deep groove ball bearing, the inner ring peace of deep groove ball bearing
On planet carrier；The axial force of sun gear passes through two thrust bearings of left and right ends, planet carrier is transmitted the force to, to support
Disappear axial force.Above-mentioned technical proposal can be widely applied to various gearboxes.
Bull gear is positioning by the purpose that two deep groove ball bearings support, while bull gear can be made to run smoothly；Due to
The retarder of the design is the external tooth output power by bull gear, and to improve gear capacity, general gear is using oblique
Tooth will generate axial force in engagement process, and the inner ring of deep groove ball bearing is mounted on planet carrier, can be by axial force transmission
To planet carrier, and the retarder planet carrier connects together with shell, to counteract axial force.
By spline fixed carrier in reducer structure, pass through bull gear output power；Planet carrier and shell are linked as one
Body is while there are also compact-sized, to offset the benefit of axial force backward to achieve the purpose that fixed carrier.
Axis is mounted in the annular groove that planet carrier is equipped with snap ring, and effect is axially position deep groove ball bearing, prevents it
Axial motion；Hole is mounted in the annular groove that planet carrier is equipped with snap ring, and effect is axially position thrust bearing.
To sum up, the design is compact-sized, simple, and positioning method is novel, as sun gear both ends are also equipped with two thrust bearings
For offsetting axial force (since the input terminal of the design retarder is motor, motor is that cannot have axial force)；Bull gear by
Two deep groove ball bearing positioning, while deep groove ball bearing inner ring is mounted on planet carrier.
Embodiment 1:
Referring to Fig. 1, a kind of large speed ratio high-speed planets system reducer structure, including planet carrier 1, planetary gear 2, sun gear 3, it is described
Planetary gear 2 is connected with planet wheel spindle 4, and planet wheel spindle 4 is connected with planet carrier 1, and the sun gear 3 is arranged in planet carrier 1,
Sun gear 3 is meshed with planetary gear 2, and sun gear 3 floats, and is set with bull gear on the outer circumference surface of described 1 one end of planet carrier
5, the other end and the speed reducer housing of planet carrier 1 are linked together, and internal tooth 51 is provided on the inner peripheral surface of the bull gear 5, interior
Tooth 51 is meshed with planetary gear 2, and the external tooth 52 for power output is provided on the outer circumference surface of bull gear 5.
Embodiment 2:
Basic content with embodiment 1, the difference is that:
Referring to Fig. 1, thrust bearing 6, one end of the thrust bearing 6 are set on the outer circumference surface at 3 both ends of sun gear
It is resisted against on the outer circumference surface of sun gear 3, the other end of thrust bearing 6 is resisted against on the inner wall of planet carrier 1；The sun gear 3
Outer circumference surface on close to the position of sun gear input terminal 31 be set with hole snap ring 7, the hole snap ring 7 is mounted on planet carrier
In the No.1 mounting groove of 1 inner wall, hole is in contact with the end face of snap ring 7 with the end face of thrust bearing 6；The sun gear input terminal 31
Outer circumference surface on be provided with No.1 spline 32；The thrust bearing 6 is thrust roller bearing.
Embodiment 3:
Basic content with embodiment 1, the difference is that:
Referring to Fig. 1, No. two splines 11 are provided on the outer circumference surface of the planet carrier 1, planet carrier 1 passes through No. two splines 11 and subtracts
Fast device shell is linked together.
Embodiment 4:
Basic content with embodiment 1, the difference is that:
Referring to Fig. 1, the position on the inner peripheral surface of the bull gear 5 positioned at 51 two sides of internal tooth is set with rolling bearing 8, described
The inner ring of rolling bearing 8 is sleeved on the outer circumference surface of planet carrier 1；It is located at bull gear 5 one on the outer circumference surface of the planet carrier 1
The position of side is provided with stage portion 12, and stage portion 12 is in contact with the inner ring of rolling bearing 8, the outer circumference surface of the planet carrier 1
The upper position positioned at 5 other side of bull gear offers No. two mounting grooves, and axis snap ring 9, axis card are equipped in No. two mounting grooves
Ring 9 is in contact with the inner ring of rolling bearing 8；The rolling bearing 8 is deep groove ball bearing.
Claims (9)
1. a kind of large speed ratio high-speed planets system reducer structure, including planet carrier (1), planetary gear (2), sun gear (3), described
Planetary gear (2) is connected with planet wheel spindle (4), and planet wheel spindle (4) is connected with planet carrier (1), it is characterised in that:
Sun gear (3) setting is in planet carrier (1), and sun gear (3) is meshed with planetary gear (2), and sun gear (3) is floating
It is dynamic, it is set with bull gear (5) on the outer circumference surface of described planet carrier (1) one end, the other end and speed reducer housing of planet carrier (1)
It is linked together, is provided with internal tooth (51) on the inner peripheral surface of the bull gear (5), internal tooth (51) is meshed with planetary gear (2), greatly
The external tooth (52) for power output is provided on the outer circumference surface of gear ring (5).
2. a kind of large speed ratio high-speed planets system according to claim 1 reducer structure, it is characterised in that: the sun
It takes turns and is set with thrust bearing (6) on the outer circumference surface at (3) both ends, one end of the thrust bearing (6) is resisted against sun gear (3)
Outer circumference surface on, the other end of thrust bearing (6) is resisted against on the inner wall of planet carrier (1).
3. a kind of large speed ratio high-speed planets system according to claim 2 reducer structure, it is characterised in that: the sun
It takes turns and is set with hole snap ring (7) on the outer circumference surface of (3) close to the position of sun gear input terminal (31), the hole is with snap ring (7)
It is mounted in the No.1 mounting groove of planet carrier (1) inner wall, hole is in contact with the end face of snap ring (7) with the end face of thrust bearing (6).
4. a kind of large speed ratio high-speed planets system according to claim 3 reducer structure, it is characterised in that: the sun
It takes turns and is provided with No.1 spline (32) on the outer circumference surface of input terminal (31).
5. a kind of large speed ratio high-speed planets system according to claim 2 reducer structure, it is characterised in that: the thrust
Bearing (6) is thrust roller bearing.
6. a kind of large speed ratio high-speed planets system according to claim 1 reducer structure, it is characterised in that: the planet
No. two splines (11) are provided on the outer circumference surface of frame (1), planet carrier (1) is linked as by No. two splines (11) with reducer shell
One.
7. a kind of large speed ratio high-speed planets system according to claim 1 reducer structure, it is characterised in that: the canine tooth
The position on the inner peripheral surface of (5) positioned at internal tooth (51) two sides is enclosed to be set with rolling bearing (8), the rolling bearing (8)
Inner ring is sleeved on the outer circumference surface of planet carrier (1).
8. a kind of large speed ratio high-speed planets system according to claim 7 reducer structure, it is characterised in that: the planet
Position on the outer circumference surface of frame (1) positioned at bull gear (5) side is provided with stage portion (12), stage portion (12) and rolling bearing
(8) inner ring is in contact, and the position on the outer circumference surface of the planet carrier (1) positioned at bull gear (5) other side offers No. two
Mounting groove is equipped with axis snap ring (9) in No. two mounting grooves, and axis is in contact with snap ring (9) with the inner ring of rolling bearing (8).
9. a kind of large speed ratio high-speed planets system according to claim 7 reducer structure, it is characterised in that: the rolling
Bearing (8) is deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619979.5A CN109442005A (en) | 2018-12-28 | 2018-12-28 | High-speed planetary gear train reducer structure with large speed ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619979.5A CN109442005A (en) | 2018-12-28 | 2018-12-28 | High-speed planetary gear train reducer structure with large speed ratio |
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| Publication Number | Publication Date |
|---|---|
| CN109442005A true CN109442005A (en) | 2019-03-08 |
Family
ID=65540519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811619979.5A Pending CN109442005A (en) | 2018-12-28 | 2018-12-28 | High-speed planetary gear train reducer structure with large speed ratio |
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| CN203594733U (en) * | 2013-12-19 | 2014-05-14 | 天津市祥威传动设备有限公司 | Planetary reducer for plastic extruding machine |
| CN204061745U (en) * | 2014-08-07 | 2014-12-31 | 龙工（上海）精工液压有限公司 | Planetary pinion is the 3Z type planetary gear speed reducing mechanism of floating duplicate gear |
| CN204985553U (en) * | 2015-08-20 | 2016-01-20 | 郑州机械研究所 | Herringbone tooth planetary reducer |
| CN105465283A (en) * | 2015-12-11 | 2016-04-06 | 方盛车桥（柳州）有限公司 | Helical tooth planet gear speed reduction mechanism |
| CN206386439U (en) * | 2016-12-19 | 2017-08-08 | 扬州大学 | A kind of helical tooth cycloid gear planetary reduction gear |
| CN206439344U (en) * | 2016-12-20 | 2017-08-25 | 中国第一汽车股份有限公司 | Odd-side planetary gear train assembly after a kind of heavy multi-speed transmission |
| CN107091305A (en) * | 2017-04-01 | 2017-08-25 | 重庆电子工程职业学院 | Planetary transmission for electric automobile |
| CN106989164A (en) * | 2017-04-13 | 2017-07-28 | 东风商用车有限公司 | NGW type planetary mechanism with lubricating oil channel for gearbox |
| CN206943391U (en) * | 2017-04-13 | 2018-01-30 | 东风商用车有限公司 | NGW type planetary mechanism with lubricating oil channel for gearbox |
| CN209398799U (en) * | 2018-12-28 | 2019-09-17 | 东风商用车有限公司 | High-speed planetary gear train reducer structure with large speed ratio |
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