CN208764268U - Eccentrically rocking type reduction gear - Google Patents
Eccentrically rocking type reduction gear Download PDFInfo
- Publication number
- CN208764268U CN208764268U CN201821481070.3U CN201821481070U CN208764268U CN 208764268 U CN208764268 U CN 208764268U CN 201821481070 U CN201821481070 U CN 201821481070U CN 208764268 U CN208764268 U CN 208764268U
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- CN
- China
- Prior art keywords
- ring
- fixing groove
- ditch grooved
- movable
- ball
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Abstract
The utility model belongs to reducer technology field, in particular to a kind of Eccentrically rocking type reduction gear.Including input shaft, fixing groove ring, swing ball component, shell, movable ditch grooved ring and output shaft, wherein input shaft and output shaft can be rotated the both ends for being set to shell, fixing groove ring, movable ditch grooved ring and swing ball component are placed in shell, fixing groove ring is fixedly connected with the input terminal of shell, movable ditch grooved ring is fixedly connected with output shaft, swing ball component positioned at fixing groove ring and movable ditch grooved ring between and with fixing groove ring and movable ditch grooved ring CONTACT WITH FRICTION, swing ball component with input eccentric shaft connect.The utility model significantly reduces noise, is applicable to require on the mechanical device of low noise；The utility model structure is simple, small and exquisite, just can reach the deceleration greatly than number by more than ten spherical columns, while can also be mostly than several output.
Description
Technical field
The utility model belongs to reducer technology field, in particular to a kind of Eccentrically rocking type reduction gear.
Background technique
In engineering machinery, speed reducer be it is commonly used, motor, internal combustion engine or other power to run at high speed are led to
It crosses the few gear of the number of teeth on the input shaft of speed reducer and engages the gear wheel on output shaft to achieve the purpose that deceleration.Traditional deceleration
Device is mainly made of driving parts, axis, bearing, cabinet and its attachment, wherein driving parts use gear or worm screw, gear or
Worm gearing manufacturing process is complicated, it is desirable that accurate, cost is high, and noise is big, especially the deceleration device of helicopter, noise
People is even more allowed to be difficult to endure.Therefore, it is simple to be badly in need of a kind of structure, low noise, the not high speed reducer of cost.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of Eccentrically rocking type reduction gear, it is existing to solve
Speed reducer manufactures complex process, it is desirable that accurate, cost is high, and the problem that noise is big.
To achieve the goals above, the utility model uses following technical scheme:
A kind of Eccentrically rocking type reduction gear, including input shaft, fixing groove ring, swing ball component, shell, movable ditch grooved ring
And output shaft, wherein input shaft and output shaft are rotatablely arranged at the both ends of the shell, the fixing groove ring, movable ditch
Grooved ring and swing ball component are placed in shell, and the fixing groove ring is fixedly connected with the input terminal of the shell, described
Movable ditch grooved ring is fixedly connected with the output shaft, the swing ball component be located at the fixing groove ring and movable ditch grooved ring it
Between and with the fixing groove ring and movable ditch grooved ring CONTACT WITH FRICTION, the swing ball component connect with the input eccentric shaft.
The swing ball component includes shaft, sphere and ball, and wherein sphere is hollow structure, and the shaft is placed in institute
It states in the cavity of sphere and both ends and the sphere is rotatablely connected, one end of the shaft and the input axis connection and axis
It is not conllinear；The outer surface of the sphere circumferentially arranged at least it is two rows of respectively with the fixing groove ring and movable ditch grooved ring friction
The ball of contact.
The tip inside of the fixing groove ring and movable ditch grooved ring is circumferentially equipped with a row for matching with ball friction
The groove of conjunction.
Row's groove number on the fixing groove ring and movable ditch grooved ring is more than the quantity of corresponding row ball
One or one few.
The input shaft and the output shaft coaxial line.
The ball is embedded in the groove that the sphere is equipped in appearance and can be rotated, and the shape of the ball is ball
Shape, hemispherical or taper.
The output shaft be it is multiple and successively nested from inside to outside, can be relatively rotated between the two neighboring output shaft,
The movable ditch grooved ring be it is multiple and successively nested from inside to outside, one end of multiple movable ditch grooved rings respectively with multiple institutes
It states output shaft to be fixedly connected, the outer surface of the sphere is equipped with the movable groove with each movable ditch grooved ring other end respectively
Multiple rows of ball of contact.
The length of multiple movable ditch grooved rings successively becomes larger from inside to outside；The length of multiple output shafts is from inside to outside
Successively shorten.
The inner wall of the fixing groove ring is equipped with multiple rows of fixing groove.
Multiple rows of ball on the sphere is distributed from center to two sides, for cooperating with fixing groove and movable groove.
The advantages of the utility model and beneficial effect are: the utility model structure is simple, small and exquisite, passes through more than ten spherical columns
It just can reach the deceleration greatly than number, while can also be mostly than several output.
The core component of the utility model is spherical structure, and movement is twisting, and the spherical column of contact is similar to ball
Shape bearing is applicable to require on the mechanical device of low noise so significantly reducing noise.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is the structural schematic diagram of the swing ball component in the utility model embodiment one；
Fig. 3 is the cross-sectional view that ball component is swung in the utility model；
Fig. 4 a is one of the structural schematic diagram of ball in the utility model；
Fig. 4 b is the second structural representation of ball in the utility model；
Fig. 4 c is the third structural representation of ball in the utility model；
Fig. 5 is the structural schematic diagram of movable ditch grooved ring in the utility model；
Fig. 6 is the structural schematic diagram of fixing groove ring in the utility model；
Fig. 7 is the expanded view of movable ditch grooved ring and fixing groove ring in the utility model；
Fig. 8 is the structural schematic diagram of the utility model embodiment two；
Fig. 9 is the structural schematic diagram that ball component is swung in the utility model embodiment two.
In figure: 1 is input shaft, and 2 is input end bearing block, and 3 be input end bearing, and 4 be fixing groove ring, and 401 be fixation
Groove, 5 is swing ball component, and 501 be shaft, and 502 be taper roller bearing, and 503 be sphere, and 504 be ball, and 5041 roll for taper
Pearl, 5042 be hemispherical ball a, and 5043 be hemispherical ball b, and 6 be shell, and 7 be movable ditch grooved ring, and 701 be movable groove, 8
To export end bearing block, 9 be output end bearing, and 10 be output shaft, and 11 be the first output shaft, and 12 be the second output shaft, and 13 be the
Three output shafts, 71 be the first movable ditch grooved ring, and 72 be the second movable ditch grooved ring, and 73 be third movable ditch grooved ring.
Specific embodiment
In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied
The utility model is described in detail in example.
Embodiment one
As shown in Figure 1, a kind of Eccentrically rocking type reduction gear provided by the utility model, including input shaft 1, fixing groove ring
4, ball component 5, shell 6, movable ditch grooved ring 7 and output shaft 10 are swung, wherein input shaft 1 and output shaft 10 pass through input terminal respectively
Bearing 3 and output end bearing 9 are rotatablely arranged at the both ends of shell 6, fixing groove ring 4, movable ditch grooved ring 7 and swing ball group
Part 5 is placed in shell 6, and fixing groove ring 4 is fixedly connected with the input terminal of shell 6, and movable ditch grooved ring 7 and output shaft 10 are solid
Fixed connection, swing ball component 5 positioned at fixing groove ring 4 and movable ditch grooved ring 7 between and with fixing groove ring 4 and activity groove
7 CONTACT WITH FRICTION of ring swings ball component 5 and connect with 1 bias of input shaft.
As shown in Fig. 2, swinging ball component 5 includes shaft 501, sphere 503 and ball 504, wherein sphere 503 is hollow knot
Structure, shaft 501 is placed in the cavity of sphere 503 and both ends are rotatablely connected by taper roller bearing 502 and sphere 503, shaft
501 one end is connect with input shaft 1 and axis is not conllinear；The outer surface of sphere 503 is respectively and solid circumferentially arranged at least two rows
Determine the ball 504 of 7 CONTACT WITH FRICTION of ditch grooved ring 4 and movable ditch grooved ring.
As shown in figure 3, ball 504 is embedded in the groove that sphere 503 is equipped in appearance and can be rotated.The shape of ball 504
Shape is spherical structure, can also be other rotatable forms.
As shown in fig. 4 a, the shape of ball 504 can be taper roller 5041；As shown in Figure 4 b, the shape of ball 504 can be
Hemispherical ball a5042, hemispherical ball a5042 are sheathed on pin shaft and can rotate around pin shaft；As illustrated in fig. 4 c, ball 504
Shape can be hemispherical ball b5043, hemispherical ball b5043 and pin shaft integral structure, pin shaft can sphere 503 in appearance
Rotation in the groove being equipped with.
It is used for and 504 frictional fit of ball as shown in figure 5, the tip inside of movable ditch grooved ring 7 is circumferentially equipped with a row
Movable groove 701；As shown in fig. 6, the tip inside of fixing groove ring 4 is circumferentially equipped with a row for rubbing with ball 504
Wipe the fixing groove 401 of cooperation.Row's groove number on fixing groove ring 4 and movable ditch grooved ring 7 is rolled than a corresponding row
The quantity one more or less of pearl 504.
Fig. 7 is the expanded view of movable ditch grooved ring 7 and fixing groove ring 4 in the utility model；As shown in fig. 7, ball 504 with
The fit system of groove is: ball 504 is from being placed in groove to gradually to the fit system on the outside of groove, i.e., being a certain always
The ball 504 and trench contact of side, to achieve the purpose that movable ditch grooved ring 7 is pushed to rotate.
In the embodiments of the present invention, 10 coaxial line of input shaft 1 and output shaft.
The working principle of the utility model is:
Power input shaft 1 is connect with 501 bias of shaft for swinging ball component 5, when input shaft 1 drives shaft 501 to rotate,
Sphere 503 is in twisted posture, and two rows of balls 504 on 503 surface of sphere swing back and forth, and two rows of balls 504 respectively correspond fixed ditch
Grooved ring 4 and movable ditch grooved ring 7, because fixing groove ring 4 is fixed, the movable ditch grooved ring 7 is with regard to the power after exportable deceleration.Have several
Arrange ball 504 and movable ditch grooved ring 7, so that it may export the power of several groups of different rotating speeds.
The relationship of the quantity of every row's ball 504 on 503 surface of sphere and the quantity of groove at even number and odd number, every row's ball
504 quantity is not quite similar.
Embodiment two
The present embodiment two and the structure of embodiment one are essentially identical, the difference is that, embodiment first is that digital ratio number export,
The present embodiment than number second is that mostly export.
As shown in figure 8, output shaft 10 is multiple and successively nested from inside to outside, two neighboring output shaft in the present embodiment
It can be relatively rotated between 10, movable ditch grooved ring 7 is multiple and successively nesting, one end of multiple movable ditch grooved rings 7 are equal from inside to outside
With swing 5 CONTACT WITH FRICTION of ball component, the other end is fixedly connected with multiple output shafts 10 respectively.The length of multiple movable ditch grooved rings 7
Successively become larger from inside to outside, the length of multiple output shafts 10 successively shortens from inside to outside.
The inner wall of fixing groove ring 4 is equipped with multiple rows of fixing groove 401, as shown in figure 9, multiple rows of ball on sphere 503
504 are distributed from center to two sides, for cooperating with fixing groove 401 and movable groove 701, are mostly exported than number with realizing.
In the present embodiment, output shaft 10 and movable ditch grooved ring 7 are three, and the end of each movable ditch grooved ring 7 is equipped with a row
Movable groove 701, the inner wall of fixing groove ring 4 are equipped with two rows of fixing grooves 401；Sphere 503 is equipped with five row's balls 504,
Two rows of balls 504 wherein positioned at side are corresponding with two rows of fixing grooves 401 on fixing groove ring 4 respectively, are located at another
Three row's balls 504 of side are corresponding with the movable groove 701 of three 7 ends of movable ditch grooved ring respectively.One row's fixing groove 401 with
Corresponding row ball 504 forms one group of input shaft bearing, row's activity groove 701 and corresponding 504 groups of another row's ball
At one group of output bearing.Because the fixing groove ring 4 of input shaft bearing be it is fixed, sphere at this moment does not have revolution, only turns round
It is dynamic.It being interacted by ball 504 on sphere and movable ditch grooved ring 7, sphere at this moment not only twists, there are also revolution, it
Revolution than be about ball 504 number, or be ditch slot number on movable ditch grooved ring 7, sphere has revolving speed, by the
Two couples of youngsters export the deceleration again of bearing, and reduction ratio increases again, and the structure can realize that number is compared in six kinds of outputs in this way.
The core component of the utility model is spherical structure, and movement is twisting, and the spherical column of contact is similar to ball
Shape bearing is applicable to require on the mechanical device of low noise so significantly reducing noise.The utility model structure letter
It is single, it is small and exquisite, it just can reach the deceleration greatly than number by more than ten spherical columns, while can also be mostly than several output.
The foregoing is merely the embodiments of the present invention, are not intended to limit the protection scope of the utility model.It is all
Any modification, equivalent substitution and improvement made within spirit of the present utility model and principle, extension etc., are all contained in this reality
With in novel protection scope.
Claims (10)
1. a kind of Eccentrically rocking type reduction gear, which is characterized in that including input shaft (1), fixing groove ring (4), swing ball component
(5), shell (6), movable ditch grooved ring (7) and output shaft (10), wherein input shaft (1) and output shaft (10) are rotatablely arranged at
The both ends of the shell (6), the fixing groove ring (4), movable ditch grooved ring (7) and swing ball component (5) are placed in shell
(6) in, the fixing groove ring (4) is fixedly connected with the input terminal of the shell (6), the movable ditch grooved ring (7) with it is described
Output shaft (10) is fixedly connected, the swing ball component (5) between the fixing groove ring (4) and movable ditch grooved ring (7),
And with the fixing groove ring (4) and movable ditch grooved ring (7) CONTACT WITH FRICTION, the swing ball component (5) and the input shaft (1)
Bias connection.
2. Eccentrically rocking type reduction gear according to claim 1, which is characterized in that the swing ball component (5) includes turning
Axis (501), sphere (503) and ball (504), wherein sphere (503) is hollow structure, and the shaft (501) is placed in described
In the cavity of sphere (503) and both ends and the sphere (503) are rotatablely connected, one end of the shaft (501) and the input
Axis (1) connects and axis is not conllinear；The outer surface of the sphere (503) circumferentially arranged at least it is two rows of respectively with the fixation
The ball (504) of ditch grooved ring (4) and movable ditch grooved ring (7) CONTACT WITH FRICTION.
3. Eccentrically rocking type reduction gear according to claim 2, which is characterized in that the fixing groove ring (4) and activity
The tip inside of ditch grooved ring (7) is circumferentially equipped with a row for the groove with ball (504) frictional fit.
4. Eccentrically rocking type reduction gear according to claim 3, which is characterized in that the fixing groove ring (4) and activity
The quantity one more or less of row's groove number on ditch grooved ring (7) than corresponding row ball (504).
5. Eccentrically rocking type reduction gear according to claim 2, which is characterized in that the input shaft (1) and the output
Axis (10) coaxial line.
6. Eccentrically rocking type reduction gear according to claim 2, which is characterized in that the ball (504) is embedded at described
It in the groove that sphere (503) is equipped in appearance and can be rotated, the shape of the ball (504) is spherical, hemispherical or taper.
7. Eccentrically rocking type reduction gear according to claim 2, which is characterized in that the output shaft (10) be it is multiple and
It is successively nested from inside to outside, it can be relatively rotated between the two neighboring output shaft (10), the movable ditch grooved ring (7) is more
A and successively nested from inside to outside, one end of multiple movable ditch grooved rings (7) is fixed with multiple output shafts (10) respectively
The outer surface of connection, the sphere (503) is equipped with the movable groove with each movable ditch grooved ring (7) other end respectively
(701) the multiple rows of ball (504) contacted.
8. Eccentrically rocking type reduction gear according to claim 7, which is characterized in that multiple movable ditch grooved rings (7)
Length successively becomes larger from inside to outside；The length of multiple output shafts (10) successively shortens from inside to outside.
9. Eccentrically rocking type reduction gear according to claim 7, which is characterized in that the inner wall of the fixing groove ring (4)
It is equipped with multiple rows of fixing groove (401).
10. Eccentrically rocking type reduction gear according to claim 9, which is characterized in that multiple rows of rolling on the sphere (503)
Pearl (504) is distributed from center to two sides, for cooperating with fixing groove (401) and movable groove (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821481070.3U CN208764268U (en) | 2018-09-11 | 2018-09-11 | Eccentrically rocking type reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821481070.3U CN208764268U (en) | 2018-09-11 | 2018-09-11 | Eccentrically rocking type reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764268U true CN208764268U (en) | 2019-04-19 |
Family
ID=66135537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821481070.3U Expired - Fee Related CN208764268U (en) | 2018-09-11 | 2018-09-11 | Eccentrically rocking type reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843759A (en) * | 2018-09-11 | 2018-11-20 | 李桂君 | A kind of Eccentrically rocking type reduction gear |
-
2018
- 2018-09-11 CN CN201821481070.3U patent/CN208764268U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843759A (en) * | 2018-09-11 | 2018-11-20 | 李桂君 | A kind of Eccentrically rocking type reduction gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20200911 |