CN109899458A - A kind of retarder based on ball bearing - Google Patents
A kind of retarder based on ball bearing Download PDFInfo
- Publication number
- CN109899458A CN109899458A CN201910257139.7A CN201910257139A CN109899458A CN 109899458 A CN109899458 A CN 109899458A CN 201910257139 A CN201910257139 A CN 201910257139A CN 109899458 A CN109899458 A CN 109899458A
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- China
- Prior art keywords
- cycloidal
- crankshaft
- ball bearing
- main shaft
- pin wheel
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Abstract
A kind of retarder based on ball bearing, including main shaft, planetary gear, crankshaft, cycloid ball bearing, shell and cycloidal-pin wheel；Shell position hollow assembling structure, main shaft are co-axially located at the geometric center of shell；Two crankshafts are parallel on the circle that the radians such as main shaft are arranged in centered on main shaft；The lower end of two crankshafts is fixedly installed planetary gear, and the lower end of main shaft is fixedly installed gear, and gear is engaged in two planetary gears；Fixing sleeve is set there are two cycloid ball bearing on each crankshaft, is arranged on main shaft there are two cycloidal-pin wheel, and there is hole in the position that cycloidal-pin wheel is located at crankshaft, and crankshaft is across hole setting, and two cycloid ball 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 group 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 retarder based on ball bearing.
Background technique
RV transmission is a kind of transmission newly risen, it is developed on the basis of traditional Cycloid drive, no
The shortcomings that only overcoming general pin cycloid transmission, and because having, small in size, light-weight, gear range is big, the service life is long, precision
Keep the series of advantages such as stable, high-efficient, stable drive.It is increasingly subject to extensive concern both domestic and external.RV retarder is by putting
Line pinwheel and planet stent composition are small in size with its, and anti-impact force is strong, and torque is big, and positioning accuracy is high, with small vibration, and reduction ratio is big etc.
Plurality of advantages is widely used in industrial robot, lathe, medical treatment detection device, the fields such as satellite receiving system.It is compared with machine
Common harmonic drive has much higher fatigue strength, rigidity and service life, and return difference stable accuracy in people, unlike harmonic wave passes
It is dynamic to significantly reduce with using the time to increase kinematic accuracy like that, therefore many national high precision machines people transmissions are more in the world
Using RV retarder, therefore, this kind of RV retarder has the development for gradually replacing harmonic speed reducer to become in advanced robot transmission
Gesture.Existing RV retarder work operating condition is complicated, is easy to influence by heavy shock loads, it is difficult to guarantee its service life, assemble simultaneously
Complexity, maintenance replacement are inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of retarders based on ball bearing, to solve the above problems.
To achieve the above object, the invention adopts the following technical scheme:
A kind of retarder based on ball bearing, including main shaft, planetary gear, crankshaft, cycloid ball bearing, shell and cycloidal pin
Wheel；Shell position hollow assembling structure, main shaft are co-axially located at the geometric center of shell；Two crankshafts are parallel to the radians such as main shaft and set
It sets on the circle centered on main shaft；The lower end of two crankshafts is fixedly installed planetary gear, and the lower end of main shaft is fixedly installed
Gear, gear are engaged in two planetary gears；Fixing sleeve is set there are two cycloid ball bearing on each crankshaft, is arranged with two on main shaft
There are hole in a cycloidal-pin wheel, the position that cycloidal-pin wheel is located at crankshaft, and crankshaft is arranged across hole, and two cycloid balls on each crankshaft
Bearing is respectively positioned in the hole of cycloidal-pin wheel；The internal tooth being meshed with cycloidal-pin wheel edge, cycloidal pin are provided on case inside wall
Wheel group and interior tooth engagement.
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
It is provided with spring bearing, is provided with gasket between spring bearing and cycloidal-pin wheel group.
Further, outer ring ball bearing, the outer ring of outer ring ball bearing and shell ends are respectively arranged at shell both ends open
Portion's inner sidewall is fixedly connected, and the inner ring of two outer ring ball bearings is fixedly installed end cap.
Further, end cap includes upper end cover and lower cover, and main shaft is arranged across upper end cover, and crankshaft is set across lower cover
It sets, and planetary gear is arranged on the outside of lower cover, there are two the pit to match with planetary gear shape, planetary gears for setting on lower cover
In pit.
Further, the spring bearing of upper end cover side is fixed on upper end cover inner sidewall, and crankshaft is inserted in support shaft
In holding.
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.
Compared with prior art, the present invention has following technical effect:
The present invention is able to bear radial load and axial load using ball bearing, while can effectively expand the tune of retarder
Fast range, and reduce noise.
The present invention uses dual planetary gear, 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.
Detailed description of the invention
Fig. 1 retarder sectional view of the present invention
Fig. 2 retarder shaft side figure of the present invention
Wherein, 1- main shaft, 2- spring bearing, 3- crankshaft, 4- planetary gear, 5- end cap, 6- cycloidal-pin wheel, the outer ring 7- ball axis
It holds, 8- shell, 12- cycloid ball bearing, 13- gasket.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further described:
Please refer to Fig. 1 and Fig. 2, a kind of retarder based on ball bearing, including main shaft 1, planetary gear 4, crankshaft 3, cycloid ball
Bearing 12, shell 8 and cycloidal-pin wheel 6；8 hollow assembling structures of shell, main shaft 1 are co-axially located at the geometric center of shell 8；Two
A crankshaft 3 is parallel to the radians such as main shaft 1 and is arranged on the circle centered on main shaft 1；The lower end of two crankshafts 3 is fixedly installed
Planetary gear 4, the lower end of main shaft 1 are fixedly installed gear, and gear is engaged in two planetary gears 4；Fixation is arranged on each crankshaft 3
It there are two cycloid ball bearing 12, is arranged on main shaft 1 there are two cycloidal-pin wheel 6, there is hole in the position that cycloidal-pin wheel 6 is located at crankshaft, bent
Axis is arranged across hole, and two cycloid ball bearings 12 on each crankshaft are respectively positioned in the hole of cycloidal-pin wheel 6；8 inner sidewall of shell
On be provided with the internal tooth being meshed with 6 edge of cycloidal-pin wheel, cycloidal-pin wheel group and interior tooth engagement.
Two cycloidal-pin wheels 6 on main shaft 1 form cycloidal-pin wheel group, and the upper and lower side of cycloidal-pin wheel group is respectively provided on crankshaft 3
There is spring bearing 2, gasket 13 is provided between spring bearing 2 and cycloidal-pin wheel group.
Outer ring ball bearing 7, the outer ring of outer ring ball bearing 7 and 8 tip inside of shell are respectively arranged at 8 both ends open of shell
Wall is fixedly connected, and the inner ring of two outer ring ball bearings 7 is fixedly installed end cap 5.
End cap 5 includes upper end cover and lower cover, and main shaft 1 is arranged across upper end cover, and crankshaft 3 is arranged across lower cover, and row
Star-wheel 4 is arranged on the outside of lower cover, is arranged on lower cover there are two the pit to match with 4 shape of planetary gear, planetary gear is located at
In pit.
The spring bearing of upper end cover side is fixed on upper end cover inner sidewall, and crankshaft is inserted in spring bearing.
It is connected by key between crankshaft 3 and planetary gear 4；Using geometric center to be opened up on the circumference in the center of circle on cycloidal-pin wheel 6
There are several circular holes.Main shaft is hollow structure, mitigates retarder weight, enhances heat dissipation effect
There are gaps between cycloidal-pin wheel group and end cap, and lubricating fluid Shi Gengfang is repaired or increased while enhancing heat dissipation effect
Just.
Outer ring ball bearing of the present invention is configured between shell and upper and lower end cap, and the cycloid ball bearing is configured in described
Between crankshaft and Cycloidal Wheel, slowed down using cam mechanism.
Primary speed-down is slowed down using planetary gear, and when work, motor connects belt pulley, and input torque passes through main shaft transmitting
To planetary gear, once slowed down, the material of main shaft is 300M steel, function admirable, and being made into hollow can mitigate retarder
Weight, be easily installed.Outer ring ball bearing is configured between shell and upper and lower end cap, and the cycloid ball bearing is configured in institute
It states between crankshaft and Cycloidal Wheel, two reduction gear is using crankshaft deceleration, and planetary gear is driven by key torque being transmitted to cam
Axis, to drive cam axle, following cycloid ball bearing rotation drives Cycloidal Wheel to be translatable immediately, to reach deceleration
Purpose.
Double reduction system is constituted using two camshafts and two planetary gears, compact-sized, retardation efficiency is high, assembly side
Just；It runs smoothly, noise is small, durable；Strong applicability, security reliability are big.
Claims (6)
1. a kind of retarder based on ball bearing, which is characterized in that including main shaft (1), planetary gear (4), crankshaft (3), cycloid ball
Bearing (12), shell (8) and cycloidal-pin wheel (6)；Shell (8) position hollow assembling structure, main shaft (1) are co-axially located at shell (8)
Geometric center；Two crankshafts (3) are parallel to the radians such as main shaft (1) and are arranged on the circle centered on main shaft (1)；Two crankshafts
(3) lower end is fixedly installed planetary gear (4), and the lower end of main shaft (1) is fixedly installed gear, and gear is in two planetary gears
(4) it engages；Fixing sleeve is set there are two cycloid ball bearing (12) on each crankshaft (3), is arranged that there are two cycloidal pins on main shaft (1)
It takes turns (6), there is hole in the position that cycloidal-pin wheel (6) is located at crankshaft, and crankshaft is arranged across hole, and two cycloid ball axis on each crankshaft
(12) are held to be respectively positioned in the hole of cycloidal-pin wheel (6)；It is provided on shell (8) inner sidewall and is meshed with cycloidal-pin wheel (6) edge
Internal tooth, cycloidal-pin wheel group and interior tooth engagement.
2. a kind of retarder based on ball bearing according to claim 1, which is characterized in that two pendulum on main shaft (1)
Line pinwheel (6) forms cycloidal-pin wheel group, and the upper and lower side of cycloidal-pin wheel group is provided with spring bearing (2), support shaft on crankshaft (3)
It holds and is provided with gasket (13) between (2) and cycloidal-pin wheel group.
3. a kind of retarder based on ball bearing according to claim 1, which is characterized in that at shell (8) both ends open
It is respectively arranged with outer ring ball bearing (7), the outer ring of outer ring ball bearing (7) is fixedly connected with shell (8) tip inside wall, and two outer
The inner ring of circle ball bearing (7) is fixedly installed end cap (5).
4. a kind of retarder based on ball bearing according to claim 3, which is characterized in that end cap (5) includes upper end cover
And lower cover, main shaft (1) are arranged across upper end cover, crankshaft (3) is arranged across lower cover, and planetary gear (4) is arranged in lower cover
Outside, there are two the pits to match with planetary gear (4) shape, planetary gear to be located in pit for setting on lower cover.
5. a kind of retarder based on ball bearing according to claim 4, which is characterized in that the support shaft of upper end cover side
It holds and is fixed on upper end cover inner sidewall, crankshaft is inserted in spring bearing.
6. a kind of retarder based on ball bearing according to claim 1, which is characterized in that crankshaft (3) and planetary gear (4)
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 (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257139.7A CN109899458A (en) | 2019-04-01 | 2019-04-01 | A kind of retarder based on ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257139.7A CN109899458A (en) | 2019-04-01 | 2019-04-01 | A kind of retarder based on ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899458A true CN109899458A (en) | 2019-06-18 |
Family
ID=66955081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257139.7A Pending CN109899458A (en) | 2019-04-01 | 2019-04-01 | A kind of retarder based on ball bearing |
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| Country | Link |
|---|---|
| CN (1) | CN109899458A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016114184A (en) * | 2014-12-16 | 2016-06-23 | Ntn株式会社 | Cycloid speed reducer and in-wheel motor drive with cycloid speed reducer |
| CN106015468A (en) * | 2016-07-25 | 2016-10-12 | 广州市昊志机电股份有限公司 | RV speed reducer with crossed roller bearings |
| CN106870644A (en) * | 2016-11-08 | 2017-06-20 | 吴小杰 | The RV decelerators of industrial robot high rigidity |
| CN108799316A (en) * | 2018-08-02 | 2018-11-13 | 南通振康焊接机电有限公司 | A kind of RV accurate retarding machines eccentric shaft and accurate retarding machine |
| CN108953541A (en) * | 2018-08-02 | 2018-12-07 | 南通振康焊接机电有限公司 | A kind of RV speed reducer of ultralow reduction ratio |
-
2019
- 2019-04-01 CN CN201910257139.7A patent/CN109899458A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016114184A (en) * | 2014-12-16 | 2016-06-23 | Ntn株式会社 | Cycloid speed reducer and in-wheel motor drive with cycloid speed reducer |
| CN106015468A (en) * | 2016-07-25 | 2016-10-12 | 广州市昊志机电股份有限公司 | RV speed reducer with crossed roller bearings |
| CN106870644A (en) * | 2016-11-08 | 2017-06-20 | 吴小杰 | The RV decelerators of industrial robot high rigidity |
| CN108799316A (en) * | 2018-08-02 | 2018-11-13 | 南通振康焊接机电有限公司 | A kind of RV accurate retarding machines eccentric shaft and accurate retarding machine |
| CN108953541A (en) * | 2018-08-02 | 2018-12-07 | 南通振康焊接机电有限公司 | A kind of RV speed reducer of ultralow reduction ratio |
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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 |