CN204312627U - A kind of harmonic speed reducer - Google Patents
A kind of harmonic speed reducer Download PDFInfo
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- CN204312627U CN204312627U CN201420766254.XU CN201420766254U CN204312627U CN 204312627 U CN204312627 U CN 204312627U CN 201420766254 U CN201420766254 U CN 201420766254U CN 204312627 U CN204312627 U CN 204312627U
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- flexbile gear
- speed reducer
- output disc
- harmonic speed
- harmonic
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Abstract
The utility model discloses a kind of harmonic speed reducer, belong to transmission art field.Its feature structure is: be provided with cover plate outside described output disc, and the outside device that connects can be connected with output disc through cover central hole; The length of described flexbile gear is 0.6 ~ 0.8 times of the oval major axis of harmonic generator.A kind of harmonic speed reducer of the utility model optimizes overall structure, and the flange plate eliminating input output connects, and instead of flange plate, reduce the radial dimension of retarder entirety with cover plate; And adopt short cylinder flexbile gear structure, reduce overall axial dimension, the requirement of some less installing spaces can be adapted to, and overall intensity and the stability of work can be ensured.
Description
Technical field
The utility model relates to a kind of Novel reducer, specifically a kind of harmonic speed reducer, belongs to transmission art field.
Background technique
Harmonic speed reducer is the gearing that the distortion of a kind of controlled elasticity by middle flexible part realizes motion and transmission of power.It is a kind of planetary drive with small teeth difference of specific type.Be mainly used in the fields such as robot, Aero-Space, precision type instrument.There is the advantages such as velocity ratio is large, transmission accuracy is high, structure is simple, volume is little, lightweight compared with general gear transmission.
Existing harmonic speed reducer its input part general is connected by flange plate with output, and overall structure is compact not, and retarder longitudinal separation is comparatively large, cannot meet the requirement that installing space is less.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of harmonic speed reducer of less installing space, and its axial length is shorter, and radial length is also less, and can meet usage requirement.
For solving the problems of the technologies described above, the technological scheme of a kind of harmonic speed reducer of the utility model is: comprise harmonic generator that one end is oval cam structure, flexible bearing together with oval cam anatomical connectivity, the flexbile gear of tubular and steel wheel, steel wheel one end is provided with internal tooth, intermeshes with the external tooth of flexbile gear one end in it; One end of harmonic generator is provided with the keyway be connected with outer motor shaft, the axle of the other end there is flexbile gear pad by deep groove ball bearing cover, flexbile gear pad is connected with output disc at the bottom of the cylinder of flexbile gear, output disc is arranged in steel wheel by zanjon bearing, it is characterized in that: be provided with cover plate outside described output disc, the outside device that connects can be connected with output disc through cover central hole; The length of described flexbile gear is 0.6 ~ 0.8 times of the oval major axis of harmonic generator.
The thickness of described cover plate is 0.1 ~ 0.3 times of described steel wheel external diameter.
The wall thickness of described tubular flexbile gear is 0.01 ~ 0.05 times of length of flexspline.
The beneficial effects of the utility model
Compared with prior art, the utility model is provided with cover plate outside described output disc, and the outside device that connects can be connected with output disc through cover central hole; The length of described flexbile gear is 0.6 ~ 0.8 times of the oval major axis of harmonic generator.A kind of harmonic speed reducer of the utility model optimizes overall structure, and the flange plate eliminating input output connects, and instead of the flange plate of output terminal, reduce the radial dimension of retarder entirety with cover plate; And adopt short cylinder flexbile gear structure, reduce overall axial dimension, the requirement of some less installing spaces can be adapted to, and overall intensity and the stability of work can be ensured.
Accompanying drawing explanation
Fig. 1 is phantom of the present utility model;
Fig. 2 is plan view of the present utility model.
Embodiment
By reference to the accompanying drawings the utility model is further elaborated.
As depicted in figs. 1 and 2, a kind of harmonic speed reducer, it comprises harmonic generator 1 that one end is oval cam structure, flexible bearing 2 together with oval cam anatomical connectivity, the flexbile gear 3 of tubular and steel wheel 4, and steel wheel 4 one end is provided with internal tooth, intermeshes with the external tooth of flexbile gear in it 3 one end; One end of harmonic generator 1 is provided with the keyway 5 be connected with outer motor shaft, the axle of the other end there is flexbile gear pad 7 by two deep groove ball bearing 6 covers, flexbile gear pad 7 is connected with output disc 8 at the bottom of the cylinder of flexbile gear 3, and output disc 8 is arranged in steel wheel 3 by zanjon bearing 9; Be provided with cover plate 10 outside described output disc 8, the outside device that connects can be connected with output disc 8 through cover central hole 11; The length of described flexbile gear 3 is 0.6 ~ 0.8 times of the oval major axis of harmonic generator 1.
A kind of harmonic speed reducer of the utility model optimizes overall structure, and the flange plate eliminating input output connects, and instead of the flange plate of output terminal, reduce the radial dimension of retarder entirety with cover plate 10; And adopt short cylinder flexbile gear 3 structure, reduce overall axial dimension, the requirement of some less installing spaces can be adapted to, and overall intensity and the stability of work can be ensured.
The thickness of cover plate 10 of the present utility model is 0.1 ~ 0.3 times of described steel wheel external diameter.As preferably, the thickness of cover plate 10 is 0.15 times of steel wheel external diameter.
The wall thickness of tubular flexbile gear 3 of the present utility model is 0.01 ~ 0.05 times of flexbile gear 3 length.As preferably, the wall thickness of tubular flexbile gear 3 is 0.02 times of flexbile gear 3 length.
During work, when harmonic generator 1 rotates in flexbile gear 3, due to the cam structure that harmonic generator 1 is oval, flexbile gear 3 is forced to produce continuous print resiliently deformable, the now continuous rotation of wave-generator 1, just make flexbile gear tooth engaging-in-engage-nibble-throw off these four kinds of cycle of states and back and forth constantly change engagement original separately.This side set motion just, the high speed rotating of input just can be become slowly running of output by harmonic speed reducer.
Its flexbile gear 3 of the harmonic speed reducer of the present embodiment is two with steel wheel 4 tooth difference, and the profile of tooth of flexbile gear 3 is involute gear, adopts 35CrMnSiA material, and Linear cut slow wire feeding is processed.Because flexbile gear 3 is than just wheel 4 few two tooth pitches on pitch circumference, so flexbile gear 3 is in engagement process, just relatively just must take turns the angular displacement that 4 turn over two tooth pitches, the rotation of this angular displacement reducer output shaft just, thus achieve the object of deceleration.
Claims (3)
1. a harmonic speed reducer, comprise harmonic generator (1) that one end is oval cam structure, flexible bearing (2) together with oval cam anatomical connectivity, the flexbile gear (3) of tubular and steel wheel (4), steel wheel (4) one end is provided with internal tooth, intermeshes with the external tooth of flexbile gear in it (3) one end; One end of harmonic generator (1) is provided with the keyway (5) be connected with outer motor shaft, the axle of the other end there is flexbile gear pad (7) by deep groove ball bearing (6) cover, flexbile gear pad (7) is connected with output disc (8) at the bottom of the cylinder of flexbile gear (3), output disc (8) is arranged in steel wheel (4) by zanjon bearing (9), it is characterized in that: described output disc (8) outside is provided with cover plate (10), outside even device can pass cover central hole (11) and be connected with output disc (8); The length of described flexbile gear (3) is 0.6 ~ 0.8 times of the oval major axis of harmonic generator (1).
2. a kind of harmonic speed reducer according to claim 1, is characterized in that, the thickness of described cover plate (10) is 0.1 ~ 0.3 times of described steel wheel (4) external diameter.
3. a kind of harmonic speed reducer according to claim 1, is characterized in that, the wall thickness of described tubular flexbile gear (3) is 0.01 ~ 0.05 times of flexbile gear (3) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766254.XU CN204312627U (en) | 2014-12-09 | 2014-12-09 | A kind of harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766254.XU CN204312627U (en) | 2014-12-09 | 2014-12-09 | A kind of harmonic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312627U true CN204312627U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420766254.XU Active CN204312627U (en) | 2014-12-09 | 2014-12-09 | A kind of harmonic speed reducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204312627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286763A (en) * | 2016-10-11 | 2017-01-04 | 湖南大学 | A kind of new harmonic decelerator and input drive mechanism thereof |
| CN106514491A (en) * | 2016-12-21 | 2017-03-22 | 上海机床厂有限公司 | Continuous indexing type B-axis slewing mechanism |
-
2014
- 2014-12-09 CN CN201420766254.XU patent/CN204312627U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286763A (en) * | 2016-10-11 | 2017-01-04 | 湖南大学 | A kind of new harmonic decelerator and input drive mechanism thereof |
| CN106286763B (en) * | 2016-10-11 | 2019-06-18 | 湖南大学 | A kind of harmonic speed reducer and its input drive mechanism |
| CN106514491A (en) * | 2016-12-21 | 2017-03-22 | 上海机床厂有限公司 | Continuous indexing type B-axis slewing mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |