CN202659817U - Combined harmonic speed reducer - Google Patents
Combined harmonic speed reducer Download PDFInfo
- Publication number
- CN202659817U CN202659817U CN 201220170111 CN201220170111U CN202659817U CN 202659817 U CN202659817 U CN 202659817U CN 201220170111 CN201220170111 CN 201220170111 CN 201220170111 U CN201220170111 U CN 201220170111U CN 202659817 U CN202659817 U CN 202659817U
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- China
- Prior art keywords
- gear
- combined harmonic
- generator
- wave
- flexbile gear
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a combined harmonic speed reducer which comprises a wave generator, a flexible gear and a rigid gear. The wave generator is connected with the flexible gear, an external gear is arranged on the outer surface of the flexible gear, an internal gear is arranged on the inner surface of the rigid gear, and the external gear and the internal gear are meshed with each other. The combined harmonic speed reducer has the advantages that transmission links of the combined harmonic speed reducer are few, and the combined harmonic speed reducer is small in size and simple in structure.
Description
Technical field
The utility model relates to retarder, relates in particular to the combined harmonic retarder.
Background technique
Retarder is the independently type closed driving device between prime mover and the working machine, is used for reducing rotating speed and increases torque, to satisfy the device of need of work.Retarder generally is comprised of driving parts, axle, bearing, casing and annex thereof.The characteristics of general retarder are that reduction speed ratio is little, axial dimension is large, volume is large, quality is large, such as cup type harmonic speed reducer.Because the restriction of These characteristics, such retarder can not be satisfied the needs that slow down in the precision type instrument transmission.In order to satisfy the needs of retarder in the precision type instrument transmission, need the retarder that the exploitation reduction speed ratio is large, axial dimension is little, volume is little, quality is little, so the planetary-harmonic retarder has been arranged.Present planetary-harmonic retarder is most widely used a kind of, and its principle is that wave-generator is a rod-like members, and its two ends are equipped with rolling bearing and are consisted of roller, mutually compresses with the inwall of flexbile gear.Flexbile gear is for producing the thin-wall gear of larger resiliently deformable, and its diameter of bore is slightly less than the overall length of wave-generator.Wave-generator is to make flexbile gear produce the member of controlled elasticity distortion.After wave-generator is packed flexbile gear into, force the section of flexbile gear to become ellipse by original circle, near the tooth its major axis two ends meshes fully with the tooth of just taking turns, and near the tooth the minor axis two ends is then thrown off fully with firm wheel.The transition state that the tooth of other sections is in engagement and breaks away from the girth.When wave-generator rotates continuously, the distortion of flexbile gear constantly changes, and flexbile gear and the just engagement of wheel are also constantly changed, by engaging-in, mesh, nibble out, throw off, engaging-in again, carry out again and again, thereby the realization flexbile gear has relatively just been taken turns along the wave-generator slow circumvolve.During work, fixedly steel wheel is rotated by the driven by motor wave-generator, and flexbile gear is as follower, and output is rotated, and drives load movement.In the application in practice, many precision type instrument are (such as robot, the miniature instrument instrument) more critically transmission of need of work realizes, although present planetary-harmonic retarder has overcome the part technical barrier, but because transmission link is more, volume is larger, and does not satisfy the application in precision type instrument.
The model utility content
In order to solve the problems of the prior art, the utility model provides a kind of combined harmonic retarder.
The utility model provides a kind of combined harmonic retarder, comprise wave-generator, flexbile gear, just take turns, described wave-generator links to each other with described flexbile gear, and described flexbile gear outer surface is provided with external gear, described firm wheel internal surface is provided with internal gear, and described external gear and described internal gear are intermeshing.
As further improvement of the utility model, described wave-generator is oval cam.
As further improvement of the utility model, this combined harmonic retarder also comprises output shaft, described output shaft and described firm wheel integrated molding.
As further improvement of the utility model, the described output shaft of this combined harmonic retarder and described firm wheel are bolted together.
The beneficial effects of the utility model are: the transmission link of combined harmonic retarder of the present utility model is few, small volume, simple in structure.
Description of drawings
Fig. 1 is combined harmonic retarder cross-sectional view of the present utility model.
Embodiment
As shown in Figure 1, the utility model discloses a kind of combined harmonic retarder, comprise wave-generator, flexbile gear 1, just take turns 2, described wave-generator links to each other with described flexbile gear 1, described flexbile gear 1 outer surface is provided with external gear, described firm wheel 2 internal surfaces are provided with internal gear, and described external gear and described internal gear are intermeshing.
Described wave-generator is oval cam.
Motor links to each other with described oval cam and drives described oval cam and rotates.
This combined harmonic retarder also comprises output shaft, described output shaft and described firm wheel 2 integrated moldings.Certainly, described output shaft and described firm wheel 2 also can link together by bolt 3.
During use, the moving wave-generator of motor straight tape splicing rotates, wave-generator rotates so that flexbile gear 1 section becomes ellipse by circle, thus make near flexbile gear 1 longitudinal end tooth just with firm wheel 2 on tooth mesh fully, simultaneously near the tooth the flexbile gear 1 minor axis end just with firm wheel 2 on tooth break away from fully; Wave-generator rotates continuously and forces flexbile gear 1 constantly to be out of shape, thereby flexbile gear 1 and firm wheel 2 engagements are constantly changed, and flexbile gear 1 is as follower output transmission, thereby the band dynamic load is rotated.Flexbile gear 1 is also referred to as planet wheel, has just taken turns 2 and has been also referred to as sun gear.This combined harmonic retarder also comprises bearing ball 4 and bearing (ball) cover 5.
The input shaft of motor and wave-generator integrated design have reduced the connection for transmission link of input shaft and wave-generator; Output shaft and just wheel 2 integrated designs have reduced the retarder driving error.Just wheel 2 be bearing inner race also be bearing outer ring, reduced volume and the quality of this combined harmonic retarder integral body.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. combined harmonic retarder, it is characterized in that: comprise wave-generator, flexbile gear, just take turns, described wave-generator links to each other with described flexbile gear, and described flexbile gear outer surface is provided with external gear, described firm wheel internal surface is provided with internal gear, and described external gear and described internal gear are intermeshing.
2. combined harmonic retarder according to claim 1, it is characterized in that: described wave-generator is oval cam.
3. combined harmonic retarder according to claim 2, it is characterized in that: this combined harmonic retarder also comprises output shaft, described output shaft and described firm wheel integrated molding.
4. combined harmonic retarder according to claim 2, it is characterized in that: this combined harmonic retarder also comprises output shaft, described output shaft and described firm wheel are bolted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220170111 CN202659817U (en) | 2012-04-20 | 2012-04-20 | Combined harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220170111 CN202659817U (en) | 2012-04-20 | 2012-04-20 | Combined harmonic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659817U true CN202659817U (en) | 2013-01-09 |
Family
ID=47454726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220170111 Expired - Lifetime CN202659817U (en) | 2012-04-20 | 2012-04-20 | Combined harmonic speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775382A (en) * | 2018-07-31 | 2018-11-09 | 苏州绿的谐波传动科技有限公司 | Harmonic speed reducer with one group of ball bearing arranged side by side |
-
2012
- 2012-04-20 CN CN 201220170111 patent/CN202659817U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775382A (en) * | 2018-07-31 | 2018-11-09 | 苏州绿的谐波传动科技有限公司 | Harmonic speed reducer with one group of ball bearing arranged side by side |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |