CN208237011U - A kind of cam cycloidal gear speed reducer - Google Patents
A kind of cam cycloidal gear speed reducer Download PDFInfo
- Publication number
- CN208237011U CN208237011U CN201820796231.1U CN201820796231U CN208237011U CN 208237011 U CN208237011 U CN 208237011U CN 201820796231 U CN201820796231 U CN 201820796231U CN 208237011 U CN208237011 U CN 208237011U
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- CN
- China
- Prior art keywords
- bearing
- cam
- input shaft
- speed reducer
- cycloidal
- 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.)
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Abstract
The utility model discloses a kind of cam cycloidal gear speed reducers, it includes input shaft, eccentric cam, bearing one, cam pin tooth, bearing two, end cap, shell, bearing three, hypocycloid gear ring.Input shaft and eccentric cam are connected to one, and input shaft is embedded in bearing one, and bearing one is mounted in the card slot of the end cap, and the axis of eccentric cam and the axis of input shaft have an eccentricity；The cam pin tooth is embedded in bearing two, and bearing two is mounted in the card slot of end cap, and cam pin tooth and eccentric cam link；The hypocycloid gear ring is embedded in the bearing three, and bearing three is mounted in the card slot of the shell, and cam pin tooth is engaged with hypocycloid gear ring, and hypocycloid gear ring is overlapped with the axis of input shaft.By optimizing the structure of cycloidal-pin gear speed reducer, the size and weight of cycloidal-pin gear speed reducer are reduced, the service life of cycloidal-pin gear speed reducer is extended, realize the demand of miniaturization.
Description
Technical field
The utility model belongs to mechanical transmission fields, and in particular to a kind of retarder, especially a kind of cam cycloid gear
Retarder.
Background technique
Cycloidal-pin gear speed reducer is using cycloidal pin teeth engagement, planetary drive principle, so being generally also planet cycloid needle
Wheel decelerator, it is all that cycloidal-pin gear speed reducer can be widely used in chemical industry, conveying, pharmacy, printing, lifting, metallurgy, power generation etc.
Conglomerate, as driving or deceleration device, unique steady structure alternative common cylinder The gear deceleration in many cases
Machine and worm-gear speed reducer, therefore, cycloidal-pin gear speed reducer is widely used in various industries and field, by vast use
The popular welcome at family.
Cycloidal-pin gear speed reducer is a kind of application planetary drive principle, using the novel transmission dress of cycloidal pin teeth engagement
It sets.The full transmission device of cycloidal-pin gear speed reducer can be divided into three parts: input mechanism, deceleration mechanism, output mechanism.On input shaft
Double eccentric sleeves equipped with 180 ° of a dislocation fill there are two the roller bearing of referred to as pivoted arm on eccentric bushing, form H mechanism, two
The centre bore of a Cycloidal Wheel is the raceway of rotary arm bearing on eccentric bushing, and by one group of annular array on Cycloidal Wheel and pin gear
Needle tooth is meshed, to form the internal messing deceleration mechanism that tooth difference is a tooth.
But due to being limited by structure, the transmission ratio of cycloidal-pin gear speed reducer cannot be less than 9；Output mechanism makes entirely
The axially and radially size of mechanism increases, while the size for again limiting rotary arm bearing is difficult to increase, to limit tumbler shaft
The bearing capacity held, so that this kind of gear transmission structure service life is lower.
Utility model content
The purpose of this utility model aiming at cycloidal-pin gear speed reducer size is larger, bearing capacity to rotary arm bearing
More demanding, service life it is shorter the characteristics of, a kind of novel cam cycloidal gear speed reducer is provided, by eccentric cam
Use and save the epicyclodial wheel and output mechanism of cycloidal-pin gear speed reducer so that the structure of retarder is optimized,
The size and weight for reducing cycloidal-pin gear speed reducer, have reduced the bearing requirements of rotary arm bearing, to extend cycloidal pin
The service life of wheel decelerator realizes the demand of miniaturization to be allowed to be easily manufactured.
Technical solution
In order to achieve the above technical purposes, the utility model devises a kind of cam cycloidal gear speed reducer, it includes defeated
Enter axis, eccentric cam, bearing one, cam pin tooth, bearing two, end cap, shell, bearing three, hypocycloid gear ring etc..Input shaft and partially
Cardiac prominence wheel is connected to one, and input shaft is embedded in bearing one, and bearing one is mounted in the card slot of the end cap, and the bias is convex
It is discoid for taking turns, and the axis of eccentric cam and the axis of input shaft have an eccentricity；The cam pin tooth is embedded in bearing two, bearing
Two are mounted in the card slot of end cap, and cam pin tooth and eccentric cam link；The hypocycloid gear ring is embedded in the bearing three, bearing
Three are mounted in the card slot of the shell, and cam pin tooth is engaged with hypocycloid gear ring, the axis weight of hypocycloid gear ring and input shaft
It closes.
Further, the eccentricity phase of the eccentricity of the cam pin tooth and the eccentric cam axis and input shaft axis
Together, the round heart of distribution where the cam pin tooth centre of gyration is located on input shaft axis.
Preferably, a cam pin tooth tooth fewer than the hypocycloid gear ring.
Preferably, the cam pin tooth can carry out pumping tooth.
Beneficial effect
A kind of cam cycloidal gear speed reducer provided by the utility model by the use of eccentric cam and saves cycloid
The epicyclodial wheel and output mechanism of pinwheel reducer reduce number of parts so that the structure of retarder is optimized, thus
The bearing requirements to rotary arm bearing are reduced, the service life of cycloidal-pin gear speed reducer is extended, realize the demand of miniaturization.
Detailed description of the invention
The cam cycloidal gear speed reducer structural schematic diagram of 1 the utility model of attached drawing；
The cam cycloidal gear speed reducer cross-sectional view of 2 the utility model of attached drawing；
In figure: 1. input shafts, 2. eccentric cams, 3. bearings one, 4. cam pin teeth, 5. bearings two, 6. end caps, 61. card slots
One, 62. card slots two, 7. shells, 71. card slots three, 8. bearings three, 9. hypocycloid gear rings.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in further details.
Specific embodiment
It is as shown in Fig. 1 the cam cycloidal gear speed reducer that design according to the utility model, it includes input shaft 1, inclined
Cardiac prominence wheel 2, bearing 1, cam pin tooth 4, bearing 25, end cap 6, shell 7, bearing 38, hypocycloid gear ring 9.Input shaft 1 and partially
Cardiac prominence wheel 2 is fixedly connected integrally, and in one 3 cavity of bearing, bearing 1 is mounted in the card slot one of end cap 6 input shaft 1.
Eccentric cam 2 is a disk, and the axis of eccentric cam 2 and the axis of input shaft 1 have an eccentricity.Cam pin tooth 4 is embedded in bearing
In 25 cavity, bearing 25 is mounted on the card slot two of end cap 6, and cam pin tooth 4 is engaged with eccentric cam 2.Hypocycloid gear ring 9 is embedding
In in the cavity of bearing 38, bearing 38 is mounted on the card slot three of shell 7, and cam pin tooth 4 is engaged with hypocycloid gear ring 9, interior
Cycloid gear ring 9 is overlapped with the axis of input shaft 1.
Input shaft 1 is fixedly connected integrally with eccentric cam 2, and when input shaft 1 rotates, eccentric cam 2 will be with input shaft 1
Keep same rotational speed.Eccentric cam 2 and cam pin tooth 4 link, and drive cam pin tooth 4 to rotate by eccentric cam 2, simultaneously because
The engagement of cam pin tooth 4 and hypocycloid gear ring 9, driving hypocycloid gear ring 9 rotate, and hypocycloid gear ring 9 itself is also output
Wheel, hypocycloid gear ring 9 and input shaft 1 are coaxial, are achieved in coaxial gear.
As shown in Fig. 2, the eccentricity phase of the eccentricity of cam pin tooth 4 and 2 axis of eccentric cam and 1 axis of input shaft
Together, the round heart of distribution where 4 centre of gyration of cam pin tooth is located on the axis of input shaft 1, eccentric convex when input shaft rotation
The rotation of wheel drive cam pin tooth, cam pin tooth 4 rotate on the circumference using the axis of input shaft 1 as the center of circle.
In the present embodiment, cam pin tooth 4 turns than 9 few teeth of hypocycloid gear ring, the hypocycloid gear ring of cam pin tooth driving
Speed is able to maintain fixed ratio with cam pin tooth.
In the present embodiment, cam pin tooth 4 can also carry out pumping tooth, by the number of teeth for changing cam pin tooth 4 and hypocycloid gear ring 9
Than changing the revolving speed of hypocycloid gear ring 9.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of cam cycloidal gear speed reducer, it includes input shaft (1), eccentric cam (2), bearing one (3), cam pin tooth
(4), bearing two (5), end cap (6), shell (7), bearing three (8), hypocycloid gear ring (9), it is characterised in that: the input shaft
(1) it is connected to one with the eccentric cam (2), input shaft (1) is in the cavity of bearing one (3), bearing one (3) peace
In the card slot one (61) of the end cap (6), the axis of eccentric cam (2) and the axis of input shaft (1) have an eccentricity；Institute
Cam pin tooth (4) are stated in the cavity of bearing two (5), bearing two (5) is mounted in the card slot two (62) of end cap (6), eccentric
Needle tooth (4) and eccentric cam (2) are linked；The hypocycloid gear ring (9) is in the cavity of the bearing three (8), bearing three (8)
It is mounted in the card slot three (71) of the shell (7), cam pin tooth (4) is engaged with hypocycloid gear ring (9), hypocycloid gear ring (9)
It is overlapped with the axis of input shaft (1).
2. a kind of cam cycloidal gear speed reducer according to claim 1, it is characterised in that: the cam pin tooth (4)
Eccentricity and the eccentric cam (2) axis are identical as the eccentricity of input shaft (1) axis, cam pin tooth (4) centre of gyration institute
The round heart of distribution be located on input shaft (1) axis.
3. a kind of cam cycloidal gear speed reducer according to claim 1 or 2, it is characterised in that: the cam pin tooth (4)
A tooth fewer than the hypocycloid gear ring (9).
4. a kind of cam cycloidal gear speed reducer according to claim 1 or 2, it is characterised in that: the cam pin tooth (4)
It can carry out pumping tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820796231.1U CN208237011U (en) | 2018-05-25 | 2018-05-25 | A kind of cam cycloidal gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820796231.1U CN208237011U (en) | 2018-05-25 | 2018-05-25 | A kind of cam cycloidal gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237011U true CN208237011U (en) | 2018-12-14 |
Family
ID=64575754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820796231.1U Expired - Fee Related CN208237011U (en) | 2018-05-25 | 2018-05-25 | A kind of cam cycloidal gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208237011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113544393A (en) * | 2019-03-18 | 2021-10-22 | Ntn株式会社 | Electric actuator |
-
2018
- 2018-05-25 CN CN201820796231.1U patent/CN208237011U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113544393A (en) * | 2019-03-18 | 2021-10-22 | Ntn株式会社 | Electric actuator |
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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 |
Granted publication date: 20181214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |