CN207034091U - A kind of gear transmission structure - Google Patents
A kind of gear transmission structure Download PDFInfo
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- CN207034091U CN207034091U CN201720955271.1U CN201720955271U CN207034091U CN 207034091 U CN207034091 U CN 207034091U CN 201720955271 U CN201720955271 U CN 201720955271U CN 207034091 U CN207034091 U CN 207034091U
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- gear
- eccentric
- central shaft
- transmission structure
- input
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Abstract
The utility model discloses a kind of gear transmission structure.The gear transmission structure, including roller gear, eccentric gear, speed disk and input stator.The roller gear both ends are respectively equipped with input end gear and gear of output end, and eccentric gear is provided with eccentric shaft, central shaft and end tooth wheel, and the speed disk is provided with radial direction elliptical aperture, and the input stator is provided with central shaft hole.The central shaft of eccentric gear is arranged in the central shaft hole of input stator, and eccentric shaft is arranged in the radial direction elliptical aperture of speed disk, and end tooth wheel is meshed with roller gear gear of output end.Compared with prior art, the utility model has the advantages that：By Eccentric Gear-drive, input stator rotation is driven, its is compact-sized, speed governing high sensitivity, and speed governing is stable.
Description
Technical field
A kind of drive mechanism is the utility model is related to, particularly a kind of gear transmission structure.
Background technology
High-end bicycle generally uses buncher as its speed changing structure at present, has compared with traditional chain wheel speed-changing mechanism
Have that speed change is steady, speed change is without pause and transition in rhythm or melody, the characteristics of having experienced of riding, and its principle passes through steel ball component angle change, and steel ball rotating speed is permanent
It is fixed, when steel ball component angle changes, bail and the contact point of output bail and steel ball are inputted to steel ball component axle
Corresponding change occurs for radius, and corresponding linear velocity changes, so as to realize stable speed change.Steel ball component is typically mounted at
Input on stator and output stator, realize the angle change of steel ball component by rotating input stator, but input stator and be in
Inside speed changer, external force is difficult to make input stator rotation.
The content of the invention
Goal of the invention：In view of the above-mentioned problems, overcome above-mentioned deficiency, there is provided a kind of gear transmission structure, using eccentric gear
Transmission, drive input stator rotation.
Technical scheme：A kind of gear transmission structure, including roller gear, eccentric gear, speed disk and input stator.It is described
Roller gear both ends are respectively equipped with input end gear and gear of output end, and eccentric gear is provided with eccentric shaft, central shaft and end tooth wheel,
The speed disk is provided with radial direction elliptical aperture, and the input stator is provided with central shaft hole.The central shaft of eccentric gear is arranged on defeated
In the central shaft hole for entering stator, eccentric shaft is arranged in the radial direction elliptical aperture of speed disk, end tooth wheel and roller gear output end tooth
Wheel is meshed.The deflection of cylindricality gear drives eccentric gear deflection, and eccentric gear bottom eccentric shaft is radially movable, can not be tangential
Motion, eccentric gear is around eccentric shaft turns, so the central shaft of eccentric gear tangentially moves, drives turning for input stator
It is dynamic.
Further, the gear transmission structure also includes plastic bushing, on the central shaft of eccentric gear.
Further, the eccentric gear is 3, is distributed on gear of output end circumference.
Further, the material of the input stator is wear-resistant metal material.
Further, the material of the eccentric gear is steel alloy.
The utility model principle：The deflection of cylindricality gear drives eccentric gear deflection, and eccentric gear bottom eccentric shaft is along footpath
To motion, can not tangential motion, eccentric gear is around eccentric shaft turns, so the central shaft of eccentric gear just tangentially moves,
Drive the rotation of input stator.
Beneficial effect：Compared with prior art, the utility model has the advantages that：By Eccentric Gear-drive, input is driven
Stator rotation, its is compact-sized, speed governing high sensitivity, and speed governing is stable.
Brief description of the drawings
Fig. 1 is the utility model eccentric gear and roller gear schematic three dimensional views.
Fig. 2 is this practical eccentric gear and roller gear front view and section view.
Fig. 3 is speed disk and input stator front view.
Fig. 4 is gear drive schematic three dimensional views.
Embodiment
It is below specific embodiment, furthers elucidate the utility model, it should be understood that this embodiment is merely to illustrate this reality
With new rather than limitation the scope of the utility model, after the utility model has been read, those skilled in the art are to this
The modification of the various equivalent form of values of utility model falls within the application appended claims limited range.
A kind of gear transmission structure as shown in Figure 1, Figure 2, Figure 3 shows, including 2,3 roller gear 1, plastic bushing eccentric gears
3rd, speed disk 4 and input stator 5.The both ends of roller gear 1 are respectively equipped with input end gear 101 and gear of output end 102, institute
State eccentric gear 3 and be provided with eccentric shaft 301, central shaft 302 and end tooth wheel 303, the speed disk 4 is provided with radial direction elliptical aperture 401, institute
State input stator 5 and be provided with central shaft hole 501, plastic bushing 2 is installed on the central shaft 302 of eccentric gear 3, plastic bushing 2 is pacified
In the central shaft hole of input stator 5, eccentric shaft 301 is arranged in the radial direction elliptical aperture 401 of speed disk 4,3 eccentric gears
3 end tooth wheel 303 is meshed with the gear of output end 102 of roller gear 1, is uniformly distributed along the circumference.The deflection of cylindricality gear 1 drives eccentric
Gear 3 deflects, and the eccentric shaft 301 of eccentric gear 3 is radially movable, can not tangential motion, eccentric gear 3 is around eccentric shaft 301
Rotate, the central shaft 302 of eccentric gear 3 tangentially moves, and drives the rotation of input stator 5.
Claims (5)
1. a kind of gear transmission structure, including roller gear（1）, eccentric gear（3）, speed disk（4）With input stator（5）；Institute
State roller gear（1）Both ends are respectively equipped with input end gear（101）And gear of output end（102）；The eccentric gear（3）It is provided with
Eccentric shaft（301）, central shaft（302）With end tooth wheel（303）；The speed disk（4）Provided with radial direction elliptical aperture（401）；It is described defeated
Enter stator（5）It is provided with central shaft hole（501）；Eccentric gear（3）Central shaft（302）Installed in input stator（5）Center
In axis hole, eccentric shaft（301）Installed in speed disk（4）Radial direction elliptical aperture（401）In, end tooth wheel（303）With roller gear（1）
Gear of output end（102）It is meshed.
A kind of 2. gear transmission structure according to claim 1, it is characterised in that：Also include plastic bushing（2）, installed in inclined
Heart gear（3）Central shaft（302）On.
A kind of 3. gear transmission structure according to claim 1 or claim 2, it is characterised in that：The eccentric gear（3）For 3,
Cloth is in gear of output end（102）On circumference.
A kind of 4. gear transmission structure according to claim 1, it is characterised in that：The input stator（5）Material to be resistance to
Grind metal material.
A kind of 5. gear transmission structure according to claim 1, it is characterised in that：The eccentric gear（3）Material for close
Jin Gang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720955271.1U CN207034091U (en) | 2017-08-02 | 2017-08-02 | A kind of gear transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720955271.1U CN207034091U (en) | 2017-08-02 | 2017-08-02 | A kind of gear transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034091U true CN207034091U (en) | 2018-02-23 |
Family
ID=61473640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720955271.1U Active CN207034091U (en) | 2017-08-02 | 2017-08-02 | A kind of gear transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034091U (en) |
-
2017
- 2017-08-02 CN CN201720955271.1U patent/CN207034091U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |