CN202883895U - Harmonic reducer - Google Patents
Harmonic reducer Download PDFInfo
- Publication number
- CN202883895U CN202883895U CN 201220408389 CN201220408389U CN202883895U CN 202883895 U CN202883895 U CN 202883895U CN 201220408389 CN201220408389 CN 201220408389 CN 201220408389 U CN201220408389 U CN 201220408389U CN 202883895 U CN202883895 U CN 202883895U
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- flexbile gear
- wave
- generator
- wheel
- wave generator
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Abstract
The utility model discloses a harmonic reducer. The harmonic reducer comprises a flexible wheel sleeve, a rigid wheel, a flexible wheel, a wave generator and a flexible bearing. The rigid wheel is provided with rigid wheel inner teeth, the flexible wheel is provided with flexible wheel outer teeth, the wave generator is provided with a key groove, the flexible wheel is connected with the wave generator in a supporting mode through the wave generator, the wave generator is connected with a circumscribed motor shaft, and the wave generator inputs motive power and the flexible wheel outputs the motive power. By the method, in the process of operation, the flexible wheel outer teeth and the rigid wheel inner teeth produce angular displacement and operation of harmonic reciprocating transformation. The harmonic reducer can achieve the speed reducing effect of 60:1. The harmonic reducer has the advantages of being simple in structure, stable in work and high in reliability. The harmonic reducer can be applied to harmonic drive of electric bicycles.
Description
Technical field
The utility model relates to a kind of harmonic speed reducer of new structure, especially a kind of harmonic speed reducer that is applicable in the electric assisted bicycle industry.
Background technique
At present, its harmonic generator of the harmonic speed reducer of standard, harmonic wave flexbile gear are connected with flange plate with power input shaft, output shaft respectively, and excessive, the complex structure of volume when being applied in electric bicycle and driving, efficient are low, and cost is high.
The model utility content
The technical problem that the utility model mainly solves provides a kind of harmonic speed reducer, be to drive harmonic wave tooth and the just reciprocal distortion running of the angular displacement of the on-stream process of wheel great-leap-forward by wave-generator (cam) transmission flexible bearing, can reach the deceleration effect of 60:1.That this harmonic speed reducer has is simple in structure, high working efficiency, cost is low, energy-saving and cost-reducing and the high advantage of reliability, is highly suitable for the electric bicycle field.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of harmonic speed reducer is provided, comprise: the flexbile gear cover, just take turns, flexbile gear, the structure such as wave-generator and flexible bearing forms, described firm wheel is provided with firm wheel internal tooth, described flexbile gear is provided with the flexbile gear external tooth, described wave-generator is provided with keyway, described wave-generator is installed in the described flexbile gear, described flexbile gear and wave-generator are by the flexible bearing support and connection, described flexbile gear is installed in the described firm wheel, described firm wheel is installed in the described flexbile gear cover and with external motor axis and is connected, the power of external motor output causes flexbile gear that controlled resiliently deformable constantly occurs by the running of wave-generator, the flexbile gear external tooth also constantly changes and the just engagement generation side set motion of wheel internal tooth, this side set motion can become slowly running of output with the high speed rotating of input, has produced retarding efffect.Thereby reach the deceleration effect of 60:1 by described flexbile gear external tooth and the just number of teeth design of wheel internal tooth.
In preferred embodiment of the utility model, each central axis is on a line when described flexbile gear cover, just wheel, flexbile gear and wave-generator assembling, and described flexbile gear cover, just wheel, flexbile gear are connected with wave-generator and are connected at an external motor axis.
In preferred embodiment of the utility model, the flexbile gear external tooth forms reduction speed ratio than the just disproportionate variation of the wheel internal tooth number of teeth.
In preferred embodiment of the utility model, described flexbile gear external tooth lacks 4 teeth than the described firm wheel internal tooth number of teeth, and described flexbile gear external tooth is the non-all gear engagement of leap property with just wheel internal tooth engagement.
In preferred embodiment of the utility model, described wave-generator is that the cam face structure is a technological points of this harmonic speed reducer.
The utility model harmonic speed reducer has advantage simple in structure, easy and simple to handle, that cost is low and energy-conservation, can reach the deceleration effect of 60:1.
Description of drawings
Fig. 1 is the structure explosive view of the utility model harmonic speed reducer;
The mark of each parts is as follows among the figure: 1, flexbile gear cover, 2, just wheel, 3, flexbile gear, 4, wave-generator, 5, just take turns internal tooth, 6, the flexbile gear external tooth, 7, flexible bearing, 8, keyway.
Embodiment
The utility model is elaborated below in conjunction with accompanying drawing and concrete preferred embodiment, so that advantage of the present utility model and feature can be easier to be understood by those skilled in the art, these embodiments only are illustrative purposes, are not intended to scope of the present utility model is limited.
See also Fig. 1, the utility model harmonic speed reducer comprises: flexbile gear cover 1, just take turns 2, flexbile gear 3, wave-generator 4 and flexible bearing 7, described firm wheel 2 are provided with firm wheel internal tooth 5, described flexbile gear 3 is provided with flexbile gear external tooth 6, described wave-generator 4 is provided with keyway 8, described wave-generator 4 is installed in the described flexbile gear 3, described flexbile gear 3 passes through flexible bearing 7 support and connection with wave-generator 4, described flexbile gear 3 is installed in the described firm wheel 2, described firm wheel 2 is installed in the described flexbile gear cover 1, and power is exported by flexbile gear 3 by wave-generator 4 inputs.
Further, described flexbile gear cover 1, just take turns 2, flexbile gear 3 and wave-generator 4 assemblings and coaxial on a line with external motor shaft, flexbile gear 3 be connected by bearings between flexbile gear overlaps 1.
In addition, described flexbile gear external tooth 6 is not symmetrical with described firm wheel internal tooth 5 numbers of teeth, and described wave-generator 4 is cam face structures.
In addition, wave-generator 4 is connected by the flat key that is contained in the keyway 8 with external motor shaft during work, motor shaft rotates and drives wave-generator 4 rotations, the rotation of the wave-generator 4 of cam face makes flexbile gear 3 that controlled resiliently deformable occur, flexbile gear external tooth 6 meshes with firm wheel internal tooth 5 in deformation process, because flexbile gear external tooth 6 lacks 4 teeth than just taking turns internal tooth 5 numbers of teeth, so flexbile gear external tooth 6 is the non-all gear engagement of leap property with just taking turns when internal tooth 5 meshes, flexbile gear 3 under the effect of wave-generator 4 relative to just taking turns 2 angular displacements that produce 4 between cog in rotating, this angular displacement is exactly the rotation of output shaft.Constantly rotate continuously by wave-generator 4, controlled resiliently deformable constantly occurs in flexbile gear 3, flexbile gear external tooth 6 also constantly changes and the just engagement generation side set motion of wheel internal tooth 5, this side set motion can become slowly running of output with the high speed rotating of input, has produced retarding efffect.Thereby reach the deceleration effect of 60:1 by described flexbile gear external tooth and the just number of teeth design of wheel internal tooth.
Be different from prior art, that the utility model harmonic speed reducer has is simple in structure, working stability and the high advantage of reliability, can be applicable to the harmonic driving of electric bicycle.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. harmonic speed reducer, it is characterized in that, comprise: flexbile gear cover, firm wheel, flexbile gear, wave-generator and flexible bearing, described firm wheel is provided with firm wheel internal tooth, and described flexbile gear is provided with the flexbile gear external tooth, described wave-generator is provided with keyway, described wave-generator is installed in the described flexbile gear, and described flexbile gear and wave-generator are by the flexible bearing support and connection, and described flexbile gear is installed in the described firm wheel, described firm wheel is installed in the described flexbile gear cover, and power is exported by flexbile gear by the wave-generator input.
2. harmonic speed reducer according to claim 1 is characterized in that, the central axis of described flexbile gear cover, firm wheel, flexbile gear and wave-generator all point-blank.
3. harmonic speed reducer according to claim 1 is characterized in that, described flexbile gear external tooth lacks 4 teeth than the described firm wheel internal tooth number of teeth.
4. harmonic speed reducer according to claim 1 is characterized in that, is non-all gear engagement when described flexbile gear external tooth and described firm wheel internal tooth engagement.
5. harmonic speed reducer according to claim 1 is characterized in that, described wave-generator is the cam face structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408389 CN202883895U (en) | 2012-08-17 | 2012-08-17 | Harmonic reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408389 CN202883895U (en) | 2012-08-17 | 2012-08-17 | Harmonic reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883895U true CN202883895U (en) | 2013-04-17 |
Family
ID=48075326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408389 Expired - Fee Related CN202883895U (en) | 2012-08-17 | 2012-08-17 | Harmonic reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883895U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438158A (en) * | 2013-09-09 | 2013-12-11 | 南京信息工程大学 | Compact harmonic speed reducer |
| CN103644256A (en) * | 2013-11-21 | 2014-03-19 | 上海宇航系统工程研究所 | Grease lubrication antenna active unfolding device |
| CN103925339A (en) * | 2014-03-28 | 2014-07-16 | 苏州绿的谐波传动科技有限公司 | Harmonic reducer with U-shaped groove key |
| CN104776116A (en) * | 2015-05-04 | 2015-07-15 | 刘和义 | Flexible bearing, application and assembly method based on full-ball design |
| CN104832603A (en) * | 2014-02-12 | 2015-08-12 | 上银科技股份有限公司 | Hollow speed reducer |
| CN105822730A (en) * | 2016-05-25 | 2016-08-03 | 浙江来福谐波传动股份有限公司 | MiNi type harmonic reducer with motor shaft |
| CN110159726A (en) * | 2019-04-26 | 2019-08-23 | 牧川精密传动(浙江)有限公司 | A kind of circular cone harmonic speed changer |
| CN110425266A (en) * | 2019-06-21 | 2019-11-08 | 珠海格力电器股份有限公司 | Cam structure, wave producer, harmonic speed reducer and cam cutting technique |
-
2012
- 2012-08-17 CN CN 201220408389 patent/CN202883895U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438158A (en) * | 2013-09-09 | 2013-12-11 | 南京信息工程大学 | Compact harmonic speed reducer |
| CN103644256A (en) * | 2013-11-21 | 2014-03-19 | 上海宇航系统工程研究所 | Grease lubrication antenna active unfolding device |
| CN103644256B (en) * | 2013-11-21 | 2016-03-02 | 上海宇航系统工程研究所 | A kind of grease lubrication antenna active unwinding device |
| CN104832603A (en) * | 2014-02-12 | 2015-08-12 | 上银科技股份有限公司 | Hollow speed reducer |
| CN103925339A (en) * | 2014-03-28 | 2014-07-16 | 苏州绿的谐波传动科技有限公司 | Harmonic reducer with U-shaped groove key |
| CN103925339B (en) * | 2014-03-28 | 2016-08-17 | 苏州绿的谐波传动科技有限公司 | Harmonic speed reducer with U-shaped groove key |
| CN104776116A (en) * | 2015-05-04 | 2015-07-15 | 刘和义 | Flexible bearing, application and assembly method based on full-ball design |
| CN105822730A (en) * | 2016-05-25 | 2016-08-03 | 浙江来福谐波传动股份有限公司 | MiNi type harmonic reducer with motor shaft |
| CN110159726A (en) * | 2019-04-26 | 2019-08-23 | 牧川精密传动(浙江)有限公司 | A kind of circular cone harmonic speed changer |
| CN110425266A (en) * | 2019-06-21 | 2019-11-08 | 珠海格力电器股份有限公司 | Cam structure, wave producer, harmonic speed reducer and cam cutting technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20130817 |