CN108019472A - Planetary reducer - Google Patents
Planetary reducer Download PDFInfo
- Publication number
- CN108019472A CN108019472A CN201810081724.1A CN201810081724A CN108019472A CN 108019472 A CN108019472 A CN 108019472A CN 201810081724 A CN201810081724 A CN 201810081724A CN 108019472 A CN108019472 A CN 108019472A
- Authority
- CN
- China
- Prior art keywords
- gear
- planetary
- bearing
- output shaft
- fixed
- 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
Links
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
- 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
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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
- F16H57/02—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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- 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
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
A kind of planetary reducer, the right end of its babinet is fixed with end cap, and the inner face center of end cap is installed with fixed gear；Planetary wheel carrier is provided with by 3rd bearing, fourth bearing in the middle part of the inner cavity of babinet, the inner cavity left end of babinet is provided with output shaft gear by five bearing of the mat woven of fine bamboo strips；Input gear axle is inserted into the center cavity of end cap fixed gear and output shaft gear with one heart by clutch shaft bearing and second bearing；The first planetary gear, the second planetary gear and third planet gear composition are symmetrically installed with planetary wheel carrier, and the first planetary gear is engaged with fixed gear, the second planetary gear is engaged with input gear axle, and third planet gear is engaged with output shaft gear；Power is inputted from input gear axle, output shaft gear output.The present invention is compact-sized, and than big, input and output are driven speed with one heart, have higher transmission accuracy and higher mechanical efficiency.
Description
Technical field
The present invention relates to reducing gear technical field, more particularly to a kind of planetary reducer.
Background technology
Traditional planetary reducer species is very much, but goes for large speed ratio, large torque, and small more difficult.
Existing robot joint speed reducer drive mechanism is complicated, and power consumption is high, and efficiency is low, maintenance difficult.Particularly it is limited in gearratio,
In the case that volume is limited, it is difficult to adapt to high-power large torque transmission.
The content of the invention
It is not only compact-sized in order to solve the above technical problem, the present invention provides a kind of planetary reducer, it is small, pass
Dynamic speed is than big, and input and output are driven with one heart, and transmission moment of torsion is big, has higher transmission accuracy and higher mechanical efficiency,
Particularly suitable for robot joint speed reducer.
The technical solution of the present invention：, a kind of planetary reducer, there is babinet, it is characterised in that：The right side of the babinet
End is fixed with end cap, and the inner face center of end cap is installed with fixed gear；Pass through the 3rd in the middle part of the inner cavity of the babinet
Bearing, fourth bearing are provided with planetary wheel carrier, and the inner cavity left end of the babinet is provided with output shaft gear by five bearing of the mat woven of fine bamboo strips；It is defeated
Enter the center cavity that gear shaft is inserted into end cap, fixed gear and output shaft gear by clutch shaft bearing and second bearing with one heart
In；It is symmetrically installed with gear set on the planetary wheel carrier, the gear set is by the first planetary gear for coaxially installing with one heart, and second
Planetary gear and third planet gear composition, and the first planetary gear is engaged with fixed gear, the second planetary gear and input tooth
Wheel shaft engages, and third planet gear is engaged with output shaft gear；Power is inputted from input gear axle, passes through the second planetary gear band
While dynamic planetary wheel carrier rotation, the first planetary gear around fixed gear rotate while rotation, third planet gear is around output
Rotation while shaft gear rotates, then output shaft gear rotation output power is driven by third planet gear.
The pitch diameter difference of the fixed gear and output shaft gear is bigger, and speed is than smaller, and pitch diameter difference is smaller, fast ratio
It is bigger.
First planetary gear is identical with the second planetary modulus, the first planetary gear and third planet gear
Modulus is different.
The left end of the input gear axle is provided with locking stop nut, is installed between the 3rd bearing and fourth bearing
There is baffle ring.
Compared to the prior art, the present invention has the advantages that：
1st, the present invention has given up the structure that conventional planetary gear reducer is generally revolved round the sun using planetary wheel carrier around ring gear, and innovation is set
The structure that planetary wheel carrier revolves round the sun around external gear has been counted, planetary reducer box sizes is significantly reduced, has met robot pass
Save the technical requirements of retarder volume-diminished as far as possible.
2nd, the output shaft gear of the present invention design as planetary reduction gear box body left end cap at the same time, babinet right end cap and fixation
The design that gear is fixed as one, further simplify structure, reduce volume, and ensure that input shaft is in together with output shaft
One pivot, improves axial direction, radial direction bearing capacity, and it is big not only to transmit moment of torsion, and with higher transmission accuracy and compared with
High mechanical efficiency, transmission efficiency reach more than 90%.
3rd, the present invention need to only input by adjusting output shaft gear, the pitch diameter of input gear axle, and fixed gear
The number of teeth and modulus of gear shaft and planetary gear set are achieved with preferably fast ratio.Transmission speed ratio scope reaches 1100-5.
Brief description of the drawings
Fig. 1 is the structure sectional view of the present invention.
Embodiment
A kind of embodiment of the 1 description present invention below in conjunction with the accompanying drawings.
A kind of planetary reducer, has babinet 1, and the right end of the babinet 1 is fixed with end cap 16, and the inner face of end cap 16
Center is installed with fixed gear 2；Row is provided with by 3rd bearing 11, fourth bearing 12 in the middle part of the inner cavity of the babinet 1
Star wheel frame 3, the inner cavity left end of the babinet 1 are provided with output shaft gear 4 by five bearing 13 of the mat woven of fine bamboo strips；Input gear axle 5 passes through
One bearing 9 and second bearing 10 are inserted into the center cavity of 16 fixed gear 2 of end cap and output shaft gear 4 with one heart；The row
It is symmetrically installed with 2-10 group gear sets on star wheel frame 3, the gear set is by the first planetary gear 6 for coaxially installing with one heart, and second
Planetary gear 7 and third planet gear 8 form, and the first planetary gear 6 is engaged with fixed gear 2, the second planetary gear 7 with it is defeated
Enter gear shaft 5 to engage, third planet gear 8 is engaged with output shaft gear 4；Power is inputted from input gear axle 5, passes through the second row
Star gear 7 drive planetary wheel carrier 3 rotate while, the first planetary gear 6 around fixed gear 2 rotate while rotation, the third line
Star gear 8 around output shaft gear 4 rotate while rotation, then pass through third planet gear 8 drive output shaft gear 4 rotation output
Power.The left end of the input gear axle 5 is provided with locking stop nut 14, between the 3rd bearing 11 and fourth bearing 12
Baffle ring 15 is installed.
The pitch diameter difference of the fixed gear 2 and output shaft gear 4 is bigger, and for speed than smaller, pitch diameter difference is smaller, speed
Than bigger.First planetary gear 6 is identical with the modulus of the second planetary gear 7, the first planetary gear 6 and third planet gear
8 modulus is different.
During work, while driving the rotation of planetary wheel carrier 3 by the second planetary gear 7, the first planetary gear 6 is around fixed tooth
Wheel 2 rotation while rotation, third planet gear 8 around output shaft gear 4 rotate while rotation.Due to fixed gear 2 with it is defeated
It is different to go out the pitch diameter of shaft gear 4, and the first planetary gear 6 is different from the modulus of third planet gear 8, therefore, by the
The rotation and revolution of three planetary gears 8 can drive the rotation output power of output shaft gear 4.
The present invention only need to be by adjusting fixed gear 2, output shaft gear 4, input gear axle 5, the first planetary gear 6, the
The number of teeth and modulus of two planetary gears 7 and third planet gear 8 are achieved with preferably fast ratio.Transmission efficiency reach 90% with
On.Transmission speed ratio scope reaches 1100-5.
Above-described embodiment, simply presently preferred embodiments of the present invention, is not used for limiting the scope of the present invention, therefore all with this
The equivalent variations that content described in invention claim is done, should all be included within scope of the invention as claimed.
Claims (4)
1. a kind of planetary reducer, has babinet (1), it is characterised in that：The right end of the babinet (1) is fixed with end cap (16),
And the inner face center of end cap (16) is installed with fixed gear (2)；Pass through 3rd bearing in the middle part of the inner cavity of the babinet (1)
(11), fourth bearing (12) is provided with planetary wheel carrier (3), and the inner cavity left end of the babinet (1) is installed by five bearing of the mat woven of fine bamboo strips (13)
There is output shaft gear (4)；Input gear axle (5) by clutch shaft bearing (9) and second bearing (10) be inserted into one heart end cap (16),
In the center cavity of fixed gear (2) and output shaft gear (4)；Gear set is symmetrically installed with the planetary wheel carrier (3), it is described
Gear set by the first planetary gear (6) for coaxially installing with one heart, the second planetary gear (7) and third planet gear (8) composition, and
First planetary gear (6) is engaged with fixed gear (2), and the second planetary gear (7) is engaged with input gear axle (5), third planet
Gear (8) is engaged with output shaft gear (4)；Power is inputted from input gear axle (5), is driven and gone by the second planetary gear (7)
Star wheel frame (3) rotate while, the first planetary gear (6) around fixed gear (2) rotate while rotation, third planet gear
(8) rotation while rotation around output shaft gear (4), then drive output shaft gear (4) rotation defeated by third planet gear (8)
Go out power.
2. planetary reducer according to claim 1, it is characterised in that：The fixed gear (2) and output shaft gear (4)
Pitch diameter difference it is bigger, speed is than smaller, and pitch diameter difference is smaller, and fast ratio is bigger.
3. planetary reducer according to claim 1 or 2, it is characterised in that：First planetary gear (6) and the second row
The modulus of star gear (7) is identical, and the first planetary gear (6) is different from the modulus of third planet gear (8).
4. planetary reducer according to claim 3, it is characterised in that：The left end of the input gear axle (5) is provided with
Stop nut (14) is locked, baffle ring (15) is installed between the 3rd bearing (11) and fourth bearing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081724.1A CN108019472A (en) | 2018-01-29 | 2018-01-29 | Planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081724.1A CN108019472A (en) | 2018-01-29 | 2018-01-29 | Planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019472A true CN108019472A (en) | 2018-05-11 |
Family
ID=62074823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081724.1A Pending CN108019472A (en) | 2018-01-29 | 2018-01-29 | Planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108019472A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751368A (en) * | 2019-02-22 | 2019-05-14 | 陕西捷泰智能传动股份有限公司 | A kind of large speed ratio hollow type 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413088Y (en) * | 2000-03-06 | 2001-01-03 | 胡志良 | External geared differential speed reducer |
| US20040220008A1 (en) * | 2002-08-30 | 2004-11-04 | Kiyoji Mingishi | Power transmission device |
| CN205173377U (en) * | 2015-11-24 | 2016-04-20 | 江炜 | Practical planetary reducer |
| CN106838137A (en) * | 2017-03-07 | 2017-06-13 | 王维 | Planetary gear speed reducing mechanism |
| WO2017179623A1 (en) * | 2016-04-12 | 2017-10-19 | 日本電産シンポ株式会社 | Speed reducer |
| CN208057836U (en) * | 2018-01-29 | 2018-11-06 | 王维 | planetary reducer |
-
2018
- 2018-01-29 CN CN201810081724.1A patent/CN108019472A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413088Y (en) * | 2000-03-06 | 2001-01-03 | 胡志良 | External geared differential speed reducer |
| US20040220008A1 (en) * | 2002-08-30 | 2004-11-04 | Kiyoji Mingishi | Power transmission device |
| CN205173377U (en) * | 2015-11-24 | 2016-04-20 | 江炜 | Practical planetary reducer |
| WO2017179623A1 (en) * | 2016-04-12 | 2017-10-19 | 日本電産シンポ株式会社 | Speed reducer |
| CN106838137A (en) * | 2017-03-07 | 2017-06-13 | 王维 | Planetary gear speed reducing mechanism |
| CN208057836U (en) * | 2018-01-29 | 2018-11-06 | 王维 | planetary reducer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751368A (en) * | 2019-02-22 | 2019-05-14 | 陕西捷泰智能传动股份有限公司 | A kind of large speed ratio hollow type planetary reducer |
| CN109751368B (en) * | 2019-02-22 | 2023-06-02 | 陕西捷泰智能传动有限公司 | Hollow planetary reducer with large speed ratio |
| 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 |
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