CN109899477A - A kind of speed reducer of split type shell - Google Patents
A kind of speed reducer of split type shell Download PDFInfo
- Publication number
- CN109899477A CN109899477A CN201910257151.8A CN201910257151A CN109899477A CN 109899477 A CN109899477 A CN 109899477A CN 201910257151 A CN201910257151 A CN 201910257151A CN 109899477 A CN109899477 A CN 109899477A
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- CN
- China
- Prior art keywords
- cycloidal
- crankshaft
- bearing
- main shaft
- pin wheel
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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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Abstract
A kind of speed reducer of split type shell, including main shaft, planetary gear, crankshaft, cycloid bearing, shell and cycloidal-pin wheel；Shell is hollow assembling structure, and main shaft is co-axially located at the geometric center of shell；Three crankshafts are parallel on the circle that the radians such as main shaft are arranged in centered on main shaft；The upper end of each crankshaft is fixedly installed planetary gear, and the upper end of main shaft is fixedly installed gear, and gear is engaged with all planetary gears；Fixing sleeve is set there are two cycloid bearing on each crankshaft, is arranged on main shaft there are two cycloidal-pin wheel, and the position that cycloidal-pin wheel is located at crankshaft is equipped with hole, and crankshaft is across hole setting, and two cycloid bearings on each crankshaft are respectively positioned in the hole of cycloidal-pin wheel；The internal tooth being meshed with cycloidal-pin wheel edge, cycloidal-pin wheel and interior tooth engagement are provided on case inside wall；The present invention keeps power output distribution more uniform, and structure is simpler efficiently, and assembling process is easy.
Description
Technical field
The invention belongs to retarder technical field, in particular to a kind of speed reducer of split type shell.
Background technique
Existing RV retarder is mainly used for industrial robot, lathe, medical treatment detection device, the neck such as satellite receiving system
Domain.But existing RV retarder is easy to influence by heavy shock loads, and bearing life is lower, in addition its heavier-weight, shape ruler
It is very little larger；Speed reducer structure is complicated simultaneously, and dismounting takes time and effort, and repairs or detect inconvenience.
Summary of the invention
The purpose of the present invention is to provide a kind of speed reducers of split type shell, to solve the above problems.
To achieve the above object, the invention adopts the following technical scheme:
A kind of speed reducer of split type shell, including main shaft, planetary gear, crankshaft, cycloid bearing, shell and cycloidal-pin wheel；
Shell is hollow assembling structure, and main shaft is co-axially located at the geometric center of shell；Three crankshafts are parallel to the setting of the radians such as main shaft
On the circle centered on main shaft；The upper end of each crankshaft is fixedly installed planetary gear, and the upper end fixed setting of main shaft is with teeth
Wheel, gear are engaged with all planetary gears；Fixing sleeve is set there are two cycloid bearing on each crankshaft, is arranged that there are two cycloids on main shaft
Pinwheel, the position that cycloidal-pin wheel is located at crankshaft are equipped with hole, and crankshaft is arranged across hole, and two cycloid bearings on each crankshaft are equal
In the hole of cycloidal-pin wheel；Be provided with the internal tooth being meshed with cycloidal-pin wheel edge on case inside wall, cycloidal-pin wheel with it is interior
Tooth engagement；Shell includes upper housing, race bearing and lower case；Upper housing and lower case are annular shape, upper housing, outer race shaft
It holds and is coaxially disposed with lower case, lower case and upper housing are fixedly connected with the bearing outer ring of race bearing, form shell.
Further, two cycloidal-pin wheels on main shaft form cycloidal-pin wheel group, the upper and lower side of cycloidal-pin wheel group on crankshaft,
And circlip is provided between two cycloidal-pin wheels.
Further, shell is provided with cylinder roller bearing far from the opening of planetary gear one end, cylinder roller bearing
Outer ring is fixedly connected with shell end inner sidewall, and the inner ring of cylinder roller bearing is fixedly installed end cap.
Further, it is provided with bearing hole on end cap, spring bearing is provided in bearing hole, crankshaft is inserted in spring bearing
It is interior.
Further, gasket is provided between two cycloidal-pin wheels；The bearing inner race of race bearing is provided with and cycloidal pin
The internal tooth that wheel edge is meshed, cycloidal-pin wheel and interior tooth engagement.
Further, it is connected by key between crankshaft and planetary gear；Using geometric center as the circumference in the center of circle on cycloidal-pin wheel
On offer several circular holes；Main shaft is hollow structure.
Compared with prior art, the present invention has following technical effect:
Shell of the invention is split type structure, and dismounting is efficient and convenient, when being repaired to retarder or adding lubrication, disassembly side
Just.
The present invention uses three planetary gears, symmetrical configuration, while planet race is also uniformly opened up on end cap is distributed power output
More uniformly；
The present invention uses telescopic mounting structure, assembles step by step, and assembling process specification is smooth, and assembly efficiency is high, assembles
Journey is easy, compact mechanical structure；
Assembly structure design of the present invention is reasonable, and manufacture assembly precision guarantees, so that it may obtain high-precision and small―gap suture return difference；
Detailed description of the invention
Fig. 1 is retarder sectional view of the present invention
Fig. 2 is retarder of the present invention without shell shaft side figure
Wherein, 1- upper housing, 2- planetary gear, 3- cycloid bearing, 4- crankshaft, 5- circlip, 9- cycloidal-pin wheel, 10- outer race shaft
It holds, 12- lower case, 14- cylinder roller bearing, 16- end cap, 17- input shaft.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
Please refer to Fig. 1 and Fig. 2, a kind of speed reducer of split type shell, including main shaft 17, planetary gear 2, crankshaft 4, cycloid axle
Hold 3, shell and cycloidal-pin wheel 9；Shell is hollow assembling structure, and main shaft 17 is co-axially located at the geometric center of shell；Three songs
Axis 4 is parallel to the radians such as main shaft 17 and is arranged on the circle centered on main shaft 17；The upper end of each crankshaft 4 is fixedly installed row
Star-wheel 2, the upper end of main shaft 17 are fixedly installed gear, and gear is engaged with all planetary gears 2；Fixing sleeve is equipped on each crankshaft 4
Two cycloid bearings 3 are arranged on main shaft 17 there are two cycloidal-pin wheel 9, and cycloidal-pin wheel 9 is located at the position of crankshaft equipped with hole, crankshaft
It is arranged across hole, and two cycloid bearings 3 on each crankshaft are respectively positioned in the hole of cycloidal-pin wheel 9；It is arranged on case inside wall
There are the internal tooth being meshed with 9 edge of cycloidal-pin wheel, cycloidal-pin wheel and interior tooth engagement；Shell includes upper housing 1,10 and of race bearing
Lower case 12；Upper housing 1 and lower case 12 are annular shape, and upper housing 1, race bearing 10 and lower case 12 are coaxially disposed, under
Shell 12 and upper housing 1 are fixedly connected with the bearing outer ring of race bearing 10, form shell.
Two cycloidal-pin wheels 9 on main shaft 17 form cycloidal-pin wheel group, the upper and lower side of cycloidal-pin wheel group on crankshaft 4, and
Circlip 5 is provided between two cycloidal-pin wheels 9.
Shell is provided with cylinder roller bearing 14 far from the opening of planetary gear one end, the outer ring of cylinder roller bearing 14 with
Shell end inner sidewall is fixedly connected, and the inner ring of cylinder roller bearing 14 is fixedly installed end cap 16.
It is provided with bearing hole on end cap 16, spring bearing is provided in bearing hole, crankshaft 4 is inserted in spring bearing.
Gasket is provided between two cycloidal-pin wheels 9；The bearing inner race of race bearing 10 is provided with and 9 edge of cycloidal-pin wheel
The internal tooth being meshed, cycloidal-pin wheel and interior tooth engagement.
It is connected by key between crankshaft 4 and planetary gear 2；Using geometric center to be opened up on the circumference in the center of circle on cycloidal-pin wheel 9
There are several circular holes；Main shaft 17 is hollow structure, and hollow structure mitigates retarder weight, while enhancing heat dissipation effect.
There are gaps between cycloidal-pin wheel group and end cap, while enhancing is radiated, repair more convenient when increase lubrication.
Cylinder roller bearing of the present invention is mounted between needle roller wheel and end cap, and race bearing is connected with cycloidal-pin wheel, is utilized
Cam mechanism slows down.
Primary speed-down is using planetary gear speed-reduction, and when work, motor connects belt pulley, and input torque passes through input shaft
Planetary gear is passed to, first time deceleration is carried out.Cylinder roller bearing is mounted between needle roller wheel and end cap, race bearing and pendulum
Line pinwheel is connected, and two reduction gear is using crankshaft deceleration, and the rotation of planetary gear drives crank rotation, following cycloid bearing
Rotation drives cycloidal-pin wheel to be translatable immediately, to achieve the purpose that deceleration.Simultaneously in cycloid gear and lower wall and uplink carrier
There are certain spaces between disk, convenient for heat dissipation.
Double reduction system is constituted using three crank axles and planetary gear, compact-sized, retardation efficiency is high, easy to assembly；Together
When for planet carrier craft precision require reduce, the production cycle shorten, processing cost reduce.
Claims (6)
1. a kind of speed reducer of split type shell, which is characterized in that including main shaft (17), planetary gear (2), crankshaft (4), cycloid axle
Hold (3), shell and cycloidal-pin wheel (9)；Shell is hollow assembling structure, and main shaft (17) is co-axially located at the geometric center of shell；
Three crankshafts (4) are parallel to the radians such as main shaft (17) and are arranged on the circle centered on main shaft (17)；The upper end of each crankshaft (4)
It is fixedly installed planetary gear (2), the upper end of main shaft (17) is fixedly installed gear, and gear is engaged with all planetary gears (2)；Often
Fixing sleeve is set there are two cycloid bearing (3) on a crankshaft (4), is arranged that there are two cycloidal-pin wheel (9), cycloidal-pin wheels on main shaft (17)
(9) it is equipped with hole positioned at the position of crankshaft, crankshaft is arranged across hole, and two cycloid bearings (3) on each crankshaft are respectively positioned on pendulum
In the hole of line pinwheel (9)；Be provided with the internal tooth being meshed with cycloidal-pin wheel (9) edge on case inside wall, cycloidal-pin wheel with it is interior
Tooth engagement；Shell includes upper housing (1), race bearing (10) and lower case (12)；Upper housing (1) and lower case (12) are circle
Ring-type, upper housing (1), race bearing (10) and lower case (12) coaxial arrangement, lower case (12) and upper housing (1) are and outer ring
The bearing outer ring of bearing (10) is fixedly connected, and forms shell.
2. a kind of speed reducer of split type shell according to claim 1, which is characterized in that two pendulum on main shaft (17)
Line pinwheel (9) forms cycloidal-pin wheel group, on crankshaft (4) between the upper and lower side and two cycloidal-pin wheels (9) of cycloidal-pin wheel group
It is provided with circlip (5).
3. a kind of speed reducer of split type shell according to claim 1, which is characterized in that shell is far from planetary gear one end
Opening be provided with cylinder roller bearing (14), the outer ring of cylinder roller bearing (14) and shell end inner sidewall is fixed connects
It connects, the inner ring of cylinder roller bearing (14) is fixedly installed end cap (16).
4. a kind of speed reducer of split type shell according to claim 3, which is characterized in that end cap is provided with axis on (16)
Bearing bore is provided with spring bearing in bearing hole, and crankshaft (4) is inserted in spring bearing.
5. a kind of speed reducer of split type shell according to claim 1, which is characterized in that two cycloidal-pin wheels (9) it
Between be provided with gasket；The bearing inner race of race bearing (10) is provided with the internal tooth being meshed with cycloidal-pin wheel (9) edge, cycloidal pin
Wheel and interior tooth engagement.
6. a kind of speed reducer of split type shell according to claim 1, which is characterized in that crankshaft (4) and planetary gear (2)
Between be connected by key；Using geometric center to offer several circular holes on the circumference in the center of circle on cycloidal-pin wheel (9)；Main shaft (17) is
Hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257151.8A CN109899477A (en) | 2019-04-01 | 2019-04-01 | A kind of speed reducer of split type shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257151.8A CN109899477A (en) | 2019-04-01 | 2019-04-01 | A kind of speed reducer of split type shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899477A true CN109899477A (en) | 2019-06-18 |
Family
ID=66954164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257151.8A Pending CN109899477A (en) | 2019-04-01 | 2019-04-01 | A kind of speed reducer of split type shell |
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| Country | Link |
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| CN (1) | CN109899477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750741A (en) * | 2022-11-30 | 2023-03-07 | 重庆天作传动科技有限公司 | Vector cam speed reducer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101235A1 (en) * | 2007-02-16 | 2008-08-21 | Delbert Tesar | Manufacture and use of parallel eccentric electro-mechanical actuator |
| CN102003465A (en) * | 2009-08-26 | 2011-04-06 | 住友重机械工业株式会社 | Bearing structure and bearing |
| CN204239629U (en) * | 2014-08-15 | 2015-04-01 | 李志广 | The dust-proof accurate cycloid speed reducer of the built-in integrated carrier bearing of planetary pinion |
| CN104999476A (en) * | 2015-04-25 | 2015-10-28 | 聂进云 | Joint bearing reducer of robot |
-
2019
- 2019-04-01 CN CN201910257151.8A patent/CN109899477A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101235A1 (en) * | 2007-02-16 | 2008-08-21 | Delbert Tesar | Manufacture and use of parallel eccentric electro-mechanical actuator |
| CN102003465A (en) * | 2009-08-26 | 2011-04-06 | 住友重机械工业株式会社 | Bearing structure and bearing |
| CN204239629U (en) * | 2014-08-15 | 2015-04-01 | 李志广 | The dust-proof accurate cycloid speed reducer of the built-in integrated carrier bearing of planetary pinion |
| CN104999476A (en) * | 2015-04-25 | 2015-10-28 | 聂进云 | Joint bearing reducer of robot |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750741A (en) * | 2022-11-30 | 2023-03-07 | 重庆天作传动科技有限公司 | Vector cam speed reducer |
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| 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: 20190618 |
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| RJ01 | Rejection of invention patent application after publication |