CN205806389U - The flexbile gear with the arch gear teeth a kind of of harmonic speed reducer - Google Patents
The flexbile gear with the arch gear teeth a kind of of harmonic speed reducer Download PDFInfo
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- CN205806389U CN205806389U CN201620083233.7U CN201620083233U CN205806389U CN 205806389 U CN205806389 U CN 205806389U CN 201620083233 U CN201620083233 U CN 201620083233U CN 205806389 U CN205806389 U CN 205806389U
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Abstract
nullThis utility model belongs to harmonic speed reducer technical field，Specifically refer to the flexbile gear with the arch gear teeth of a kind of harmonic speed reducer，Include the flexbile gear body in carnival hat shape，Flexbile gear body includes the annular fixed station for fixing output shaft of cylinder and vertical cylinder body axis，The core of cylinder offer in the axial direction extend and completely through center cavity，The outer circumference surface of cylinder is provided with and extends in the axial direction and by the annulus wheel cingulum of single gear teeth circular array distribution，Connecting portion between adjacent two gear teeth is at the bottom of tooth，The highest point of the single gear teeth is tooth top，The tooth top of the gear teeth has the arch addendum line that high both sides, a middle part are low in the axial direction，This utility model is by improving the external gear teeth of the flexbile gear of prior art，The area of contact between flexbile gear and foreign steamer is made to increase，Improve the transmission accuracy of harmonic speed reducer；This utility model can use and arrange multiple annular tooth wheel belt on flexbile gear simultaneously, when one of them gear band serious wear, may change gear band, thus extend the service life of harmonic speed reducer.
Description
Technical field
This utility model belongs to harmonic speed reducer technical field, and specifically refer to a kind of harmonic speed reducer has arch
The flexbile gear of the gear teeth.
Background technology
Harmonic reducer of robot relies on its simple in construction, size is little, noise is little, gear ratio is big, transmission accuracy is high and effect
Rate advantages of higher, and be widely used by the vitals as joint of robot.Since nineteen fifty-five U.S. C.W. Mai Saier is practical
Since novel First harmonic speed reducer, whole world major industrial country has all carried out comprehensive research to it, and then makes successively
The harmonic speed reducer different with dimensions for going out a lot of series kinds, wherein with involute fine module gear flank profil harmonic reduction
Device is most widely used.Wherein, harmonic speed reducer is widely used in the rotating part in the joint of robot by above-mentioned advantage
Position, the rotary table of machining center, mechanical hand rotating part, precision rotary table, Medical Instruments, measurement instrument, IC
Manufacture the wide spectrums such as device, aerospace appts, national defence equipment (such as guided missile, radar, rocket), especially at industrial machine
The application of people field is the most universal；For industrial robot, harmonic speed reducer can be greatly reduced industrial robot size,
Reduce noise, improve efficiency and precision.
The flexbile gear of current existing harmonic speed reducer has ring-type external gear teeth, and this external gear teeth is generally straight line tooth, i.e. should
The tooth top (highest points of the gear teeth) of the gear teeth is the straight line being parallel to flexbile gear sidewall or axis along the axis direction of flexbile gear, is operating
Cheng Zhong, flexbile gear is driven by the wave producer being positioned at flexbile gear and rotates at foreign steamer (steel wheel), owing to being extruded by wave producer, soft
Wheel deforms, and the linear external gear teeth of flexbile gear also can deform simultaneously, the external gear teeth of flexbile gear and the interior wheel of foreign steamer (steel wheel)
Tooth intermeshes, but after deforming, causes both fields of conjugate action to reduce, and transmission accuracy reduces, and the degree of wear of the gear teeth becomes
By force, reduce the service life of flexbile gear.
Utility model content
This utility model is to overcome the deficiency of prior art, it is proposed that a kind of harmonic speed reducer there are the arch gear teeth
Flexbile gear, this flexbile gear is by improving the external gear teeth of the flexbile gear of prior art, and the precision making harmonic speed reducer is higher, uses the longevity
Life extends.
This utility model solves above-mentioned technical problem by following technical proposals.
The flexbile gear with the arch gear teeth of a kind of harmonic speed reducer, includes the flexbile gear body in carnival hat shape, flexbile gear body
Including cylinder and the annular fixed station for fixing output shaft of vertical cylinder body axis, the core of cylinder offers edge
Axis direction extend and completely through center cavity, the outer circumference surface of cylinder be provided with in the axial direction extend and by single
The annulus wheel cingulum of gear teeth circular array distribution, the connecting portion between adjacent two gear teeth is at the bottom of tooth, the single gear teeth the highest
Place is tooth top, and the tooth top of the gear teeth has the arch addendum line that high both sides, a middle part are low in the axial direction.
More specifically, arch addendum line is one section of circular arc line.
More specifically, there is at the bottom of tooth arch tooth bottom line that high both sides, a middle part are low in the axial direction.
More specifically, at the bottom of tooth be in the axial direction one away from addendum line equidistant arch tooth bottom line.
More specifically, wheel cingulum width in the axial direction is the 1/2 ~ 1/4 of cylinder axial length.
More specifically, cylinder is distributed n annulus wheel cingulum.
More specifically, the value of n is 1 ~ 3.
The beneficial effects of the utility model are, this utility model is by changing the external gear teeth of the flexbile gear of prior art
Entering, make the straight linear type gear teeth become the arch external gear teeth that high both sides, middle part are low, this flexbile gear is produced by after wave producer active force
Change shape, becomes linear from arch, so that the area of contact between flexbile gear and foreign steamer increases, improves harmonic speed reducer
Transmission accuracy；This utility model arranges multiple annular tooth wheel belt on a flexbile gear simultaneously, when the abrasion of one of them gear band is tight
During weight, gear band may be changed, thus extend the service life of harmonic speed reducer.
Accompanying drawing explanation
Fig. 1 is the perspective view of embodiment one.
Fig. 2 is the cross-sectional view before embodiment one deformation.
Fig. 3 is the cross-sectional view after embodiment one deformation.
Fig. 4 is the contrast effect figure before and after embodiment one deformation.
Fig. 5 is the perspective view of embodiment two.
Fig. 6 is the cross-sectional view of embodiment two.
Detailed description of the invention
Provide this utility model preferred embodiment below in conjunction with the accompanying drawings, to describe the technical solution of the utility model in detail.
As shown in Figure 1 to Figure 4, the embodiment one of the flexbile gear with the arch gear teeth of a kind of harmonic speed reducer, include in carnival hat
The flexbile gear body 1 of shape, flexbile gear body 1 includes the annular for fixing output shaft of cylinder 12 and vertical circular cylinder 12 axis 10
Fixed station 13, the core of described cylinder 12 offer along axis 10 direction extend and completely through center cavity 11, cylinder
The outer circumference surface of body 12 is provided with and extends along axis 10 direction and by the annulus wheel cingulum of the single gear teeth 2 circular array distribution
21, the connecting portion between adjacent two gear teeth 2 is at the bottom of tooth 20 ', and the highest point of the single gear teeth 2 is tooth top 20, the tooth of the described gear teeth 2
Push up 20 and there is along axis 10 direction the arch addendum line that high both sides, a middle part are low, it is preferred that described arch addendum line 20 is one
Section circular arc line, at the bottom of described tooth, 20 ' is an arch tooth bottom line away from addendum line 20 equidistant from distance along axis 10 direction.
The operation principle of embodiment one:
When embodiment one is applied to harmonic speed reducer, due to the outward force of acceptor center cavity 11 internal wave generator 3,
Flexbile gear body 1 deforms, and the gear teeth 2 of flexbile gear body 1 are by the arch addendum line 20 of naturalness and arch tooth bottom line 20 ' simultaneously
Become linear, as shown in Figure 4, the arch addendum line 20 before A line is deformation in figure, B is the linearity addendum line 20 after deformation,
Arch tooth bottom line 20 ' is deformed into straight line (not shown in Fig. 4) the most equally, owing to the interior gear teeth of foreign steamer (steel wheel) are similarly straight
Line, therefore, considerably increases both area of contacts, thus improves between the gear teeth 2 and the interior gear teeth of foreign steamer of flexbile gear body 1
The precision of harmonic speed reducer and service life.
Such as Fig. 5 and Fig. 6, the embodiment two of the flexbile gear with the arch gear teeth of a kind of harmonic speed reducer, its cylinder 12 points
Being furnished with 2 annulus wheel cingulums 21, it takes turns cingulum 21 along width is cylinder 12 axial length the 1/2 of axis 10 direction.
The operation principle of embodiment two:
It is provided with two annulus wheel cingulums 21 on cylinder, after one of them weares and teares, can be replaced into another
Annulus wheel cingulum 21, and then substantially prolongs the service life of harmonic speed reducer.
Although the foregoing describing detailed description of the invention of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
These embodiments, on the premise of without departing substantially from principle of the present utility model and essence, can be made numerous variations or repair by member
Change, but these changes and amendment each fall within protection domain of the present utility model.
Claims (2)
1. the flexbile gear with the arch gear teeth of a harmonic speed reducer, it is characterised in that include the flexbile gear body in carnival hat shape
(1), flexbile gear body (1) includes the annular for fixing output shaft of cylinder (12) and vertical circular cylinder (12) axis (10) admittedly
Determine platform (13), the core of cylinder (12) offer along axis (10) direction extend and completely through center cavity (11), circle
The outer circumference surface of cylinder (12) is provided with and extends along axis (10) direction and by the annular of the single gear teeth (2) circular array distribution
Wheel cingulum (21), the connecting portion between adjacent two gear teeth (2) is at the bottom of tooth (20 '), and the highest point of the single gear teeth (2) is tooth top
(20), the tooth top (20) of the gear teeth (2) has the arch addendum line that high both sides, a middle part are low, arch tooth top along axis (10) direction
Line is one section of circular arc line, and (20 ') at the bottom of tooth have the arch tooth bottom line that high both sides, a middle part are low along axis (10) direction, at the bottom of tooth
(20 ') along axis (10) direction be one away from addendum line (20) equidistant arch tooth bottom line, wheel cingulum (21) is along axis
(10) width in direction is the 1/2 ~ 1/4 of cylinder (12) axial length, and cylinder (12) is distributed n annulus wheel cingulum
(21).
The flexbile gear with the arch gear teeth of harmonic speed reducer the most according to claim 1, it is characterised in that the value of n is 1 ~
3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620083233.7U CN205806389U (en) | 2016-01-26 | 2016-01-26 | The flexbile gear with the arch gear teeth a kind of of harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620083233.7U CN205806389U (en) | 2016-01-26 | 2016-01-26 | The flexbile gear with the arch gear teeth a kind of of harmonic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806389U true CN205806389U (en) | 2016-12-14 |
Family
ID=58143765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620083233.7U Active CN205806389U (en) | 2016-01-26 | 2016-01-26 | The flexbile gear with the arch gear teeth a kind of of harmonic speed reducer |
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| CN (1) | CN205806389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723802A (en) * | 2018-12-10 | 2019-05-07 | 广州市昊志机电股份有限公司 | A kind of flexbile gear and harmonic speed reducer |
| CN110939713A (en) * | 2019-12-26 | 2020-03-31 | 深圳市山卓谐波传动科技有限公司 | Shape-modifying gear and harmonic reducer |
-
2016
- 2016-01-26 CN CN201620083233.7U patent/CN205806389U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723802A (en) * | 2018-12-10 | 2019-05-07 | 广州市昊志机电股份有限公司 | A kind of flexbile gear and harmonic speed reducer |
| CN110939713A (en) * | 2019-12-26 | 2020-03-31 | 深圳市山卓谐波传动科技有限公司 | Shape-modifying gear and harmonic reducer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |