CN105465286A - Planetary reducer - Google Patents
Planetary reducer Download PDFInfo
- Publication number
- CN105465286A CN105465286A CN201610008319.8A CN201610008319A CN105465286A CN 105465286 A CN105465286 A CN 105465286A CN 201610008319 A CN201610008319 A CN 201610008319A CN 105465286 A CN105465286 A CN 105465286A
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- CN
- China
- Prior art keywords
- planetary
- gear
- input
- output
- 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
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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
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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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
- F16H57/082—Planet carriers
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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
- F16H2057/085—Bearings for orbital gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a planetary reducer, which comprises a planetary carrier, wherein an input planetary gear and an output planetary gear are mounted on the planetary carrier by planetary wheel shafts; a center gear is mounted in the center of the input end of the planetary carrier; the center gear is meshed with the input planetary gear; the center gear inputs power; the input end of the planetary carrier is provided with an input inner gear ring by a bearing; the input inner gear ring is meshed with the input planetary gear; an output inner gear ring is mounted on one side, close to the output end, of the input inner gear ring by a bearing; the output inner gear ring is meshed with the output planetary gear; the output end of the planetary carrier is provided with a power output disc by a bearing; and the power output disc is fixedly connected with the output inner gear ring. The planetary reducer has the advantages that the structure is compact; the speed ratio is large; the input and output coaxial transmission is realized; the transmission precision and mechanical efficiency are relatively high; and the planetary reducer is particularly suitable for a robot joint reducer.
Description
Technical field
The present invention relates to reducing gear technical field, particularly relate to a kind of planetary speed reducer.
Background technique
Robot joint speed reducer extensively adopts RV retarder and harmonic speed reducer.Because RV retarder requires high to the processing of part and assembly precision, existing general purpose machine tool are difficult to realize high efficiency processing, need expensive special purpose machine tool, thus manufacture cost is higher.Harmonic speed reducer relies on displacement transfer power and the motion of flexbile gear, and flexbile gear material requirements is high, the life-span is shorter, and can not transmit larger moment of torsion.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of planetary speed reducer, not only compact structure, transmission speed ratio is large, and the concentric transmission of input output, and transmitting torque is large, there is higher transmission accuracy and higher mechanical efficiency, be particularly suitable for robot joint speed reducer.
Technical solution of the present invention: a kind of planetary speed reducer, comprise planetary wheel carrier, described planetary wheel carrier is provided with input planet gear and output planetary gear by planet wheel shaft, the input end central authorities of described planetary wheel carrier are provided with central gear, and central gear engages with input planet gear, by central gear input power; The input end of described planetary wheel carrier is provided with input ring gear by bearing, and input ring gear engages with input planet gear, described input ring gear is provided with output ring gear near output terminal side by bearing, and export ring gear and output planetary gears meshing, the output terminal of described planetary wheel carrier is provided with PTO drive disk by bearing, and PTO drive disk is fixedly connected with output ring gear.
Described planetary wheel carrier by two wheel-type supports be connected as a single entity and one of them near output terminal wheel-type support with output terminal axle journal form, the two ends of described planet wheel shaft are arranged on two wheel-type supports by bearing, and described input planet gear and output planetary gear are between two wheel-type supports; Described PTO drive disk is arranged on output terminal axle journal by bearing.
The integrated YRT bearing of described bearing, by exporting the annular boss that ring gear external diameter has, is arranged on three row rollers of annular boss three, and by inputting annular shoulder that ring gear has near output terminal side and gland press-fits formation.
Described input ring gear is fixed with end cap near input end side.
Compared to prior art, the present invention has following beneficial effect:
1, by YRT bearing optimal design being integrated, thus there is more compact structure and less volume, simultaneously also than adopting independently YRT bearing completed products to considerably reduce cost.Minimum volume can accomplish external diameter 77mm, thickness 44mm.
2, input shaft and output shaft are in same rotating center, radial force axial by YRT loading ability of bearing, and improve axial, radial bearing capacity, transmitting torque is large.
When 3, installing power intake can with motor coaxle direct connection, and only have a shoulder as benchmark, therefore easy to install.
4, there is higher transmission accuracy and higher mechanical efficiency.Transmission efficiency and transmission speed ratio are better than RV retarder.Transmission efficiency reaches more than 90%.Transmission speed ratio scope reaches 500-40.
5, there is power-off and shut down auto-lock function.Power-off shut down after, output terminal apply moment of torsion time, reducing gear does not rotate, therefore need not select tape band-type brake motor as input power, not only reliability is high, reduces user cost, and easy to maintenance.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention,
Fig. 2 is the structure sectional view of planetary wheel carrier of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1,2, a kind of embodiment of the present invention is described.
A kind of planetary speed reducer, comprise planetary wheel carrier 5, described planetary wheel carrier 5 is provided with input planet gear 3 and output planetary gear 12 by planet wheel shaft 7, the input end central authorities of described planetary wheel carrier 5 are provided with central gear 1, and central gear 1 engages with input planet gear 3, by central gear 1 input power; The input end of described planetary wheel carrier 5 is provided with input ring gear 4 by bearing 14, and input ring gear 4 engages with input planet gear 3, described input ring gear 4 is provided with by bearing 8 near output terminal side and exports ring gear 6, and output ring gear 6 engages with output planetary gear 12, the output terminal of described planetary wheel carrier 5 is provided with PTO drive disk 10 by bearing 11, and PTO drive disk 10 is fixedly connected with output ring gear 6.Described input ring gear 4 is fixed with end cap 2 near input end side.
Described planetary wheel carrier 5 by two wheel-type supports 15 be connected as a single entity and one of them near output terminal wheel-type support 15 with output terminal axle journal 16 form, the two ends of described planet wheel shaft 7 are arranged on two wheel-type supports 15 by bearing 13, and described input planet gear 3 and output planetary gear 12 are between two wheel-type supports 15; Described PTO drive disk 10 is arranged on output terminal axle journal 16 by bearing 11.The integrated YRT bearing of described bearing 8, by exporting the annular boss 17 that ring gear 6 external diameter has, is arranged on three row rollers 18 of annular boss 17 3, and by inputting annular shoulder 19 that ring gear 4 has near output terminal side and gland 9 press-fits formation.
During work, the present invention is fixed on joint of robot position by the flange plate first by input ring gear 4 cylindrical has, then motor coaxle is fixedly mounted on end cap 2, and electric machine main shaft is coaxially connected with central gear 1, central gear 1 is driven to rotate, revolve round the sun around input ring gear 4 while central gear 1 drives input planet gear 3 rotation, and then drive planetary wheel carrier 5 to revolve round the sun, revolve round the sun around output ring gear 6 while being arranged on output planetary gear 12 rotation on planet wheel shaft 7 simultaneously, being revolved round the sun by planetary wheel carrier 5 and revolving round the sun around output ring gear 6 while output planetary gear 12 rotation drives output ring gear 6 to rotate, power to be slowed down output by PTO drive disk 10, achieve the concentric transmission of input output, compact structure, deceleration speed ratio is large, axially, radial bearing capacity is high, transmitting torque is large, and there is higher transmission accuracy and higher mechanical efficiency.Particularly have power-off and shut down auto-lock function, not only reliability is high, and easy to maintenance.
Above-described embodiment, just preferred embodiment of the present invention, is not used for limiting the scope of the present invention, therefore all equivalent variations done with content described in the claims in the present invention, all should be included within the claims in the present invention scope.
Claims (4)
1. a planetary speed reducer, it is characterized in that: comprise planetary wheel carrier (5), described planetary wheel carrier (5) is provided with input planet gear (3) and output planetary gear (12) by planet wheel shaft (7), the input end central authorities of described planetary wheel carrier (5) are provided with central gear (1), and central gear (1) engages with input planet gear (3), by central gear (1) input power, the input end of described planetary wheel carrier (5) is provided with input ring gear (4) by bearing (14), and input ring gear (4) is engaged with input planet gear (3), described input ring gear (4) is provided with by bearing (8) near output terminal side and exports ring gear (6), and output ring gear (6) is engaged with output planetary gear (12), the output terminal of described planetary wheel carrier (5) is provided with PTO drive disk (10) by bearing (11), and PTO drive disk (10) is fixedly connected with output ring gear (6).
2. planetary speed reducer according to claim 1, it is characterized in that: described planetary wheel carrier (5) by two wheel-type supports (15) be connected as a single entity and one of them near output terminal wheel-type support (15) with output terminal axle journal (16) form, the two ends of described planet wheel shaft (7) are arranged on two wheel-type supports (15) by bearing (13), and described input planet gear (3) and output planetary gear (12) are positioned between two wheel-type supports (15); Described PTO drive disk (10) is arranged on output terminal axle journal (16) by bearing (11).
3. planetary speed reducer according to claim 1 and 2, it is characterized in that: the integrated YRT bearing of described bearing (8), by exporting the annular boss (17) that ring gear (6) external diameter has, be arranged on three row rollers (18) of annular boss (17) three, and the annular shoulder (19) had near output terminal side by input ring gear (4) and gland (9) press-fit formation.
4. planetary speed reducer according to claim 3, is characterized in that: described input ring gear (4) is fixed with end cap (2) near input end side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008319.8A CN105465286A (en) | 2016-01-07 | 2016-01-07 | Planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008319.8A CN105465286A (en) | 2016-01-07 | 2016-01-07 | Planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465286A true CN105465286A (en) | 2016-04-06 |
Family
ID=55603308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008319.8A Pending CN105465286A (en) | 2016-01-07 | 2016-01-07 | Planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465286A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838137A (en) * | 2017-03-07 | 2017-06-13 | 王维 | Planetary gear speed reducing mechanism |
| CN108180258A (en) * | 2018-02-07 | 2018-06-19 | 王维 | Double outputting planetary speed reducer |
| CN108561512A (en) * | 2018-06-15 | 2018-09-21 | 宝鸡捷泰智能科技有限公司 | Planetary reducer |
| CN110836247A (en) * | 2019-11-18 | 2020-02-25 | 陕西捷泰智能传动股份有限公司 | Large-speed-ratio hollow ultra-small robot joint speed reducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6348022B1 (en) * | 2000-02-18 | 2002-02-19 | Wei A Jin | Planetary gear transmission apparatus |
| DE10300641A1 (en) * | 2003-01-09 | 2004-07-22 | Siemens Ag | Servomotor drive e.g. for actuating motor vehicle parking brake, has first and second toothed wheels engaging with first and second toothed rings respectively, having non-identical number of teeth |
| WO2004097255A2 (en) * | 2003-05-02 | 2004-11-11 | Incentra Limited | Gearbox, and centrifuge incorporating same |
| CN202251801U (en) * | 2011-10-13 | 2012-05-30 | 中国石油集团渤海石油装备制造有限公司 | Differential for debris dryer |
| CN204083079U (en) * | 2014-08-06 | 2015-01-07 | 湖南德业机械制造有限公司 | Hand drill speed reducer |
| CN104895726A (en) * | 2015-07-02 | 2015-09-09 | 国电联合动力技术有限公司 | Tidal power generator set and variable-pitch bearing thereof |
| CN205654786U (en) * | 2016-01-07 | 2016-10-19 | 刘朝龙 | Planetary speed reducer |
-
2016
- 2016-01-07 CN CN201610008319.8A patent/CN105465286A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6348022B1 (en) * | 2000-02-18 | 2002-02-19 | Wei A Jin | Planetary gear transmission apparatus |
| DE10300641A1 (en) * | 2003-01-09 | 2004-07-22 | Siemens Ag | Servomotor drive e.g. for actuating motor vehicle parking brake, has first and second toothed wheels engaging with first and second toothed rings respectively, having non-identical number of teeth |
| WO2004097255A2 (en) * | 2003-05-02 | 2004-11-11 | Incentra Limited | Gearbox, and centrifuge incorporating same |
| CN202251801U (en) * | 2011-10-13 | 2012-05-30 | 中国石油集团渤海石油装备制造有限公司 | Differential for debris dryer |
| CN204083079U (en) * | 2014-08-06 | 2015-01-07 | 湖南德业机械制造有限公司 | Hand drill speed reducer |
| CN104895726A (en) * | 2015-07-02 | 2015-09-09 | 国电联合动力技术有限公司 | Tidal power generator set and variable-pitch bearing thereof |
| CN205654786U (en) * | 2016-01-07 | 2016-10-19 | 刘朝龙 | Planetary speed reducer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838137A (en) * | 2017-03-07 | 2017-06-13 | 王维 | Planetary gear speed reducing mechanism |
| CN108180258A (en) * | 2018-02-07 | 2018-06-19 | 王维 | Double outputting planetary speed reducer |
| CN108561512A (en) * | 2018-06-15 | 2018-09-21 | 宝鸡捷泰智能科技有限公司 | Planetary reducer |
| CN110836247A (en) * | 2019-11-18 | 2020-02-25 | 陕西捷泰智能传动股份有限公司 | Large-speed-ratio hollow ultra-small robot joint speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |
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| RJ01 | Rejection of invention patent application after publication |