CN106838137A - Planetary gear speed reducing mechanism - Google Patents
Planetary gear speed reducing mechanism Download PDFInfo
- Publication number
- CN106838137A CN106838137A CN201710130705.9A CN201710130705A CN106838137A CN 106838137 A CN106838137 A CN 106838137A CN 201710130705 A CN201710130705 A CN 201710130705A CN 106838137 A CN106838137 A CN 106838137A
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- CN
- China
- Prior art keywords
- gear
- planetary
- planetary gear
- wheel carrier
- bearing
- 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
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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
- F16H57/023—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)
Abstract
A kind of planetary gear speed reducing mechanism, the left end of its casing is provided with fixed gear, the right-hand member of casing is provided with planetary wheel carrier by clutch shaft bearing, gear shaft is inserted into the cavity of fixed gear and planetary wheel carrier with one heart by second bearing, and the inner of planetary wheel carrier by 3rd bearing be arranged on fixed gear it is cylindrical on, gear train is symmetrically installed with the planetary wheel carrier, the gear train is made up of coaxial mounted first planetary gear and the second planetary gear, and first planetary gear engaged with fixed gear, the second planetary gear is engaged with gear shaft；Power is input into from planetary wheel carrier outer end, planetary wheel carrier by the first planetary gear around fixed gear rotate while, first planetary gear and the second planetary gear rotation, output power is rotated by the second planetary gear band movable gear shaft again, compact conformation of the present invention, speed is than greatly, input and output are driven with one heart, with transmission accuracy and mechanical efficiency higher higher.
Description
Technical field
The present invention relates to reducing gear technical field, more particularly to a kind of planetary gear speed reducing mechanism.
Background technology
Traditional reducing gear species is a lot, but goes for large speed ratio, large torque so that reducing transmission structure is complicated,
Volume is big, and power consumption is high, and efficiency is low.Particularly gearratio is limited, and volume is limited.Such as cycloidal planetary gear speed reducer, worm and gear subtracts
, there is maintenance difficult, the shortcomings of inefficient in fast machine.Harmonic wave speed reducing machine is not suitable for high-power large torque transmission.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of planetary gear speed reducing mechanism, not only compact conformation, transmission speed ratio
Greatly, and input and output are driven with one heart, transmitting torque is big, with transmission accuracy and mechanical efficiency higher higher, especially fits
Share in robot joint speed reducer.
Technical solution of the invention：A kind of planetary gear speed reducing mechanism, with casing, the left end of the casing is provided with admittedly
Fixed gear, the right-hand member of casing is provided with planetary wheel carrier by clutch shaft bearing, and gear shaft is inserted into fixation with one heart by second bearing
In the cavity of gear and planetary wheel carrier, and planetary wheel carrier the inner by 3rd bearing be arranged on fixed gear it is cylindrical on, institute
State and gear train is symmetrically installed with planetary wheel carrier, the gear train is by coaxial mounted first planetary gear and the second planetary gear
Constitute, and the first planetary gear is engaged with fixed gear, the second planetary gear is engaged with gear shaft；Power is from planetary wheel carrier outer end
Input, planetary wheel carrier by the first planetary gear around fixed gear rotate while, the first planetary gear and the second planetary gear
Rotation, then output power is rotated by the second planetary gear band movable gear shaft.
2-4 group gear trains, and the first planetary gear and the second planetary section are symmetrically installed with the planetary wheel carrier
Circular diameter difference is bigger, and speed is than smaller, and pitch diameter difference is smaller, and speed is than bigger.
First planetary gear is different from the second planetary modulus.
The planetary wheel carrier is step cavity structure, and small end is arranged on the right-hand member of casing by clutch shaft bearing, and big end is logical
Cross 3rd bearing installed in fixed gear it is cylindrical on, and make fixed gear, gear shaft be located at the cavity in.
The cylindrical of the planetary wheel carrier is provided with fourth bearing and cabinet wall between.
Compared to prior art, the present invention has the advantages that：
1st, casing output end of the present invention is provided with fixed gear, and output gear shaft is in turn mounted in fixed gear inner chamber, makees
It is a fulcrum of output gear shaft, reaches realization transmission large torque, large speed ratio, efficient purpose.
2nd, input shaft of the present invention and output shaft are in same pivot, improve axial direction, radial direction bearing capacity, and transmission is turned round
Square is big.
3rd, the present invention has transmission accuracy and mechanical efficiency higher higher.Only need to be by adjusting fixed gear, gear
The number of teeth and modulus of axle and gear train are achieved with preferably speed ratio.Transmission efficiency reaches more than 90%.Transmission speed ratio scope reaches
To 1100-5.
Brief description of the drawings
Fig. 1 is structure sectional view of the invention.
Specific embodiment
1 a kind of embodiment of the invention is described below in conjunction with the accompanying drawings.
A kind of planetary gear speed reducing mechanism, with casing 1, the left end of the casing 1 is provided with fixed gear 3, the right-hand member of casing 1
Planetary wheel carrier 2 is provided with by clutch shaft bearing 8, gear shaft 6 is inserted into fixed gear 3 and planetary gear with one heart by second bearing 9
In the cavity of frame 2, and planetary wheel carrier 2 the inner by 3rd bearing 10 be arranged on fixed gear 3 it is cylindrical on, the planetary gear
Gear train is symmetrically installed with frame 2, the gear train is made up of the planetary gear 5 of coaxial mounted first planetary gear 4 and second,
And first planetary gear 4 engaged with fixed gear 3, the second planetary gear 5 is engaged with gear shaft 6.
It is symmetrically installed with 2-4 group gear trains on the planetary wheel carrier 2, and the first planetary gear 4 and the second planetary gear 5
Pitch diameter difference is bigger, and speed is than smaller, and pitch diameter difference is smaller, and speed is than bigger.And the planet of the first planetary gear 4 and second
The modulus of gear 5 is different.
The planetary wheel carrier 2 is step cavity structure, and small end is arranged on the right-hand member of casing 1, big end by clutch shaft bearing 8
By 3rd bearing 10 be arranged on fixed gear 3 it is cylindrical on, and make fixed gear 3, gear shaft 6 be located at the cavity in.Institute
Fourth bearing 11 is installed between the inwall of cylindrical and casing 1 for stating planetary wheel carrier 2.
During work, power is input into from the outer end of planetary wheel carrier 2, and planetary wheel carrier 2 is by the first planetary gear 4 around fixed gear 3
While rotation, the first planetary gear 4 and the rotation of the second planetary gear 5, then revolved with movable gear shaft 6 by the second planetary gear 5
Transfer out power.Only need to be by adjusting fixed gear, the number of teeth and modulus of gear shaft and gear train are achieved with preferably speed ratio.
Transmission efficiency reaches more than 90%.Transmission speed ratio scope reaches 1100-5.
Above-described embodiment, simply presently preferred embodiments of the present invention, not for limiting the scope of the present invention, thus it is all with this
The equivalent variations that content described in invention claim is done, all should be included within scope of the invention as claimed.
Claims (5)
1. a kind of planetary gear speed reducing mechanism, with casing (1), it is characterised in that：The left end of the casing (1) is provided with fixed gear
(3), the right-hand member of casing (1) is provided with planetary wheel carrier (2) by clutch shaft bearing (8), and gear shaft (6) is same by second bearing (9)
The heart is inserted into the cavity of fixed gear (3) and planetary wheel carrier (2), and the inner of planetary wheel carrier (2) passes through 3rd bearing (10)
Installed in fixed gear (3) it is cylindrical on, be symmetrically installed with gear train on the planetary wheel carrier (2), the gear train is by coaxial
The first planetary gear (4) and the second planetary gear (5) installed are constituted, and the first planetary gear (4) is nibbled with fixed gear (3)
Close, the second planetary gear (5) is engaged with gear shaft (6)；Power is input into from planetary wheel carrier (2) outer end, and planetary wheel carrier (2) is by the
One planetary gear (4) around fixed gear (3) rotate while, the first planetary gear (4) and the second planetary gear (5) rotation, then
Output power is rotated by the second planetary gear (5) band movable gear shaft (6).
2. planetary gear speed reducing mechanism according to claim 1, it is characterised in that：It is symmetrically installed with the planetary wheel carrier (2)
2-4 group gear trains, and the first planetary gear (4) is poor bigger with the pitch diameter of the second planetary gear (5), speed is than smaller, pitch circle
Diameter difference is smaller, and speed is than bigger.
3. planetary gear speed reducing mechanism according to claim 1 and 2, it is characterised in that：First planetary gear (4) and second
The modulus of planetary gear (5) is different.
4. planetary gear speed reducing mechanism according to claim 3, it is characterised in that：The planetary wheel carrier (2) is step cavity
Structure, small end installed in the right-hand member of casing (1), is held by 3rd bearing (10) installed in fixing tooth greatly by clutch shaft bearing (8)
Wheel (3) it is cylindrical on, and make fixed gear (3), gear shaft (6) in the cavity.
5. planetary gear speed reducing mechanism according to claim 4, it is characterised in that：The cylindrical and casing of the planetary wheel carrier (2)
(1) fourth bearing (11) is installed between inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710130705.9A CN106838137A (en) | 2017-03-07 | 2017-03-07 | Planetary gear speed reducing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710130705.9A CN106838137A (en) | 2017-03-07 | 2017-03-07 | Planetary gear speed reducing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106838137A true CN106838137A (en) | 2017-06-13 |
Family
ID=59138307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710130705.9A Pending CN106838137A (en) | 2017-03-07 | 2017-03-07 | Planetary gear speed reducing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838137A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019472A (en) * | 2018-01-29 | 2018-05-11 | 王维 | Planetary reducer |
| CN110107656A (en) * | 2019-05-28 | 2019-08-09 | 保定启晨传动科技有限公司 | A kind of dead axle speed changer |
| CN110513469A (en) * | 2018-05-21 | 2019-11-29 | 宁波麦思动力系统有限公司 | A planetary gear transmission and a motor |
| CN112833146A (en) * | 2021-03-08 | 2021-05-25 | 南京好龙电子有限公司 | External meshing planetary gear mechanism with high transmission efficiency |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413088Y (en) * | 2000-03-06 | 2001-01-03 | 胡志良 | External geared differential speed reducer |
| JP2010151196A (en) * | 2008-12-24 | 2010-07-08 | Kikuchi Haguruma Kk | Speed reducer |
| CN104121336A (en) * | 2013-04-23 | 2014-10-29 | 刘绍全 | Three-star-wheel planetary speed reducer |
| CN105465286A (en) * | 2016-01-07 | 2016-04-06 | 刘朝龙 | Planetary reducer |
-
2017
- 2017-03-07 CN CN201710130705.9A patent/CN106838137A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413088Y (en) * | 2000-03-06 | 2001-01-03 | 胡志良 | External geared differential speed reducer |
| JP2010151196A (en) * | 2008-12-24 | 2010-07-08 | Kikuchi Haguruma Kk | Speed reducer |
| CN104121336A (en) * | 2013-04-23 | 2014-10-29 | 刘绍全 | Three-star-wheel planetary speed reducer |
| CN105465286A (en) * | 2016-01-07 | 2016-04-06 | 刘朝龙 | Planetary reducer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019472A (en) * | 2018-01-29 | 2018-05-11 | 王维 | Planetary reducer |
| CN110513469A (en) * | 2018-05-21 | 2019-11-29 | 宁波麦思动力系统有限公司 | A planetary gear transmission and a motor |
| CN110107656A (en) * | 2019-05-28 | 2019-08-09 | 保定启晨传动科技有限公司 | A kind of dead axle speed changer |
| CN112833146A (en) * | 2021-03-08 | 2021-05-25 | 南京好龙电子有限公司 | External meshing planetary gear mechanism with high transmission efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
|
| RJ01 | Rejection of invention patent application after publication |