CN103587646A - Internal speed changer - Google Patents
Internal speed changer Download PDFInfo
- Publication number
- CN103587646A CN103587646A CN201210508610.3A CN201210508610A CN103587646A CN 103587646 A CN103587646 A CN 103587646A CN 201210508610 A CN201210508610 A CN 201210508610A CN 103587646 A CN103587646 A CN 103587646A
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- Prior art keywords
- speed changer
- power
- transfer clutch
- internal speed
- clutch
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Abstract
The invention discloses an internal speed changer which comprises a center shaft, a clutch and a gear mechanism. The clutch and the gear mechanism are arranged on the center shaft, the gear mechanism comprises a planetary gear train and a gear carrier, the planetary gear train is arranged on the center shaft via the gear carrier, protrusions are arranged on the surface, which faces the gear carrier, of the clutch, grooves which are matched with the protrusions are formed in the inner wall of the gear carrier, the side surfaces, which are in contact with the grooves, of the protrusions are inclined planes, and the side surfaces of the grooves are matched with the side surfaces of the protrusions which are in contact with the grooves. The internal speed changer has the advantages that the surfaces, which are in contact with the planetary gear train, of the clutch are inclined, so that friction force generated in riding procedures can be offset via inclination angles, and the purpose of nonstop pedaling speed changing in a riding state can be achieved eventually; an internal complicated structure of the clutch can be omitted owing to a different friction force offset mode; tolerance requirements on products are reduced relatively, so that a qualified rate of the products can be obviously increased in manufacturing procedures.
Description
Technical field
The invention belongs to technical field of bicycles, particularly relate to a kind of internal speed changer.
Background technology
Product in 03204051.2 patent is the product of the same type with this patent, this patent reaches the object of bicycle nave boss internal speed-changing under original technology by power-transfer clutch and the combination of different gear clusters, bicycle is advanced in attitude, pass through stretcher, chain, flywheel sheet, driver train, adapter, internal tooth wheels, satellite gear, toothed ring machine, ratchet P, flower drum shell, complete a complete input/output procedure, this power is passed to the process of internal tooth wheels by power-transfer clutch, this power there will be the friction between contact surface between the two in the adapter process separated with planetary wheel carrier.Due to the existence of friction force, make this structure in riding, to carry out speed change, in speed-change process, must stop to step on and could complete smoothly speed change, can not realize in the middle speed change of riding.
The speed change of the bicycle of a company realization in riding is by the crank slot on axis and power-transfer clutch inner structure, to produce an extrapolability to realize in addition, when bicycle changes from high speed to flat speed, power-transfer clutch needs and gear mechanism is separated, between the face contacting due to power-transfer clutch and tooth rest, there is a friction force, this structure utilizes power-transfer clutch to match with crank slot, thereby offset the friction force producing in the process of riding, realized the speed change in riding.But, this structure but shortcoming is processed complex, the processing of crank slot needs special Mould Machining, and power-transfer clutch inside need to have complicated structure to match with crank slot, thereby processing equipment is had to very high requirement, and this has also increased productive costs undoubtedly.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: existing bicycle carries out speed change in riding, and must stop to step on to complete smoothly speed change, or need to realize by complicated structure.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of internal speed changer.
Wherein, described internal speed changer comprises axis, power-transfer clutch and gear mechanism, described axis is provided with power-transfer clutch and gear mechanism, described gear mechanism comprises planetary gear train and tooth rest, described planetary gear train is arranged on axis by tooth rest, described power-transfer clutch is provided with projection on the face towards tooth rest, the inwall of described tooth rest is provided with the groove matching with described projection, described projection is dip plane in the side with contact grooves, and described groove side matches with the side that described projection contacts.
Preferably, the inside of described axis is provided with a straight-line groove, and described power-transfer clutch is by combination between this straight-line groove and tooth rest and separate.
Preferably, the side of described projection and the leaning angle of vertical plane are 5-30 degree.
Preferably, the leaning angle of the side of described projection is 20 degree.
Preferably, the side of described groove and vertical plane leaning angle be 5-30 degree.
Preferably, the cross section of described projection is trapezoidal.
Preferably, the cross section of described groove is trapezoidal.
(3) beneficial effect
Technique scheme tool has the following advantages: the present invention is set as by the face that power-transfer clutch is contacted with planetary wheel carrier, by this angle of inclination, offset the friction force producing in the process of riding, finally realize the object of not stopping to step on speed change under riding condition, because the counteracting mode of friction force is different, cancel the labyrinth of power-transfer clutch inside, on to the requirement of processing equipment and processing charges, all there is obvious advantage.Also relatively lower on to the poor requirement of the work of product, make the qualification rate in manufacture course of products obviously increase.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention;
Fig. 2 is the lateral plan of the power-transfer clutch of an embodiment of the present invention;
Fig. 3 is the structural representation of the another kind of embodiment of the present invention.
Wherein, 100: axis; 101: straight-line groove; 200: power-transfer clutch; 201: the side of projection; 300: tooth rest; 301: the side of groove.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, structural representation for a kind of embodiment of the present invention, this change-speed box comprises axis 100, power-transfer clutch 200 and gear mechanism, described axis 100 is provided with power-transfer clutch 200 and gear mechanism, described gear mechanism comprises planetary gear train and tooth rest 300, described planetary gear train is arranged on axis 100 by tooth rest 300, described power-transfer clutch 200 is provided with projection on the face towards tooth rest, the inwall of described tooth rest is provided with the groove matching with described projection, described projection is dip plane in the side with contact grooves, the side of described groove matches with the side that described projection contacts.The present invention is set as by the face that power-transfer clutch is contacted with planetary wheel carrier, by this angle of inclination, offset the friction force producing in the process of riding, finally realize the object of not stopping to step on speed change under riding condition, because the counteracting mode of friction force is different, cancel the labyrinth of power-transfer clutch inside, on to the requirement of processing equipment and processing charges, all there is obvious advantage.Also relatively lower on to the poor requirement of the work of product, make the qualification rate in manufacture course of products obviously increase.
The inside of axis 100 of the present invention is provided with a straight-line groove 101, and described power-transfer clutch is by combination between this straight-line groove and tooth rest and separate.The side that the present invention contacts with planetary wheel carrier at power-transfer clutch is inclined side, thereby offset in the process of riding and produce the friction force between side, so possessed too when the present invention changes axis into d-axis in riding, do not stop to step on the function that can complete speed change.
As shown in Figure 3, be the structural representation of the another kind of embodiment of the present invention, power-transfer clutch of the present invention is provided with projection on the face towards tooth rest, and the inwall of described tooth rest is provided with groove, and described projection and groove match.The 201Wei dip plane, side of the projection of power-transfer clutch of the present invention, becomes certain inclination angle with vertical plane.Match with the side of projection in the side 301 of the groove of tooth rest of the present invention, also become certain inclination angle with vertical plane.When change-speed box is realized from high speed to flat fast transformation, now power-transfer clutch and tooth rest are separated, because the side 201 of projection and the side 301 of groove all become certain inclination angle with vertical plane, thereby offset the friction force between two sides, be compared to existing two sides and produce huge friction force for facing directly, two sides of the present invention are more easily separated, have realized bicycle from not stopping to step on speed change to flat speed at a high speed.
Preferably, the side 201 of projection is 5-30 degree with the leaning angle of vertical plane, and preferably, the leaning angle of the side 201 of projection is 20 degree.
The side 301 of groove of the present invention is 5-30 degree with the leaning angle of vertical plane, and preferably, the leaning angle of the side 301 of described groove is 20 degree.
As shown in Figure 2, it is the lateral plan of the power-transfer clutch of an embodiment of the present invention, one side of this power-transfer clutch is provided with several projections, this projection is boss shape, boss comprises end face and is connected to the bottom surface on power-transfer clutch, end face is longer than in bottom surface, and the cross section that makes this boss is trapezoidal, and this trapezoidal base angle is 70-85 degree.The inwall of corresponding tooth rest is also provided with the groove that several and projection match, and the cross section of this groove is trapezoidal, and making the face that this groove contacts with projection is dip plane, and this trapezoidal base angle is 70-85 degree.
As can be seen from the above embodiments, the present invention is set as by the face that power-transfer clutch is contacted with planetary wheel carrier, by this angle of inclination, offset the friction force producing in the process of riding, finally realize the object of not stopping to step on speed change under riding condition, because the counteracting mode of friction force is different, cancel the labyrinth of power-transfer clutch inside, on to the requirement of processing equipment and processing charges, all there is obvious advantage.Also relatively lower on to the poor requirement of the work of product, make the qualification rate in manufacture course of products obviously increase.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (7)
1. an internal speed changer, it is characterized in that, comprise axis, power-transfer clutch and gear mechanism, described axis is provided with power-transfer clutch and gear mechanism, described gear mechanism comprises planetary gear train and tooth rest, described planetary gear train is arranged on axis by tooth rest, described power-transfer clutch is provided with projection on the face towards tooth rest, the inwall of described tooth rest is provided with the groove matching with described projection, described projection is dip plane in the side with contact grooves, and described groove side matches with the side that described projection contacts.
2. internal speed changer according to claim 1, is characterized in that, the inside of described axis is provided with a straight-line groove, and described power-transfer clutch is by combination between this straight-line groove and tooth rest and separate.
3. internal speed changer according to claim 1, is characterized in that, the side of described projection and the leaning angle of vertical plane are 5-30 degree.
4. internal speed changer according to claim 3, is characterized in that, the leaning angle of the side of described projection is 20 degree.
5. internal speed changer according to claim 1, is characterized in that, the side of described groove and vertical plane leaning angle be 5-30 degree.
6. internal speed changer according to claim 1, is characterized in that, the cross section of described projection is trapezoidal.
7. internal speed changer according to claim 1, is characterized in that, the cross section of described groove is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508610.3A CN103587646A (en) | 2012-11-21 | 2012-11-21 | Internal speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508610.3A CN103587646A (en) | 2012-11-21 | 2012-11-21 | Internal speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103587646A true CN103587646A (en) | 2014-02-19 |
Family
ID=50078034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210508610.3A Pending CN103587646A (en) | 2012-11-21 | 2012-11-21 | Internal speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103587646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314057A (en) * | 2014-07-30 | 2016-02-10 | 安宏亮 | Automatic transmission bicycle |
| CN110281694A (en) * | 2019-07-31 | 2019-09-27 | 佛山市大硕金属制品有限公司 | A kind of integrated wheel of built-in speed changer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727189A (en) * | 1993-07-12 | 1995-01-27 | Oriental Kanzai Kk | Automatic switching device for planetary gear type transmission |
| CN2604335Y (en) * | 2003-02-11 | 2004-02-25 | 日驰企业股份有限公司 | Improved internal speed variator wheels hub shaft and the internal speed variator with the same hub |
| CN101016072A (en) * | 2007-02-15 | 2007-08-15 | 顾国荣 | Automatic transmission for bicycle |
| CN202911907U (en) * | 2012-11-21 | 2013-05-01 | 宁波力盟工业有限公司 | Internal transmission |
-
2012
- 2012-11-21 CN CN201210508610.3A patent/CN103587646A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727189A (en) * | 1993-07-12 | 1995-01-27 | Oriental Kanzai Kk | Automatic switching device for planetary gear type transmission |
| CN2604335Y (en) * | 2003-02-11 | 2004-02-25 | 日驰企业股份有限公司 | Improved internal speed variator wheels hub shaft and the internal speed variator with the same hub |
| CN101016072A (en) * | 2007-02-15 | 2007-08-15 | 顾国荣 | Automatic transmission for bicycle |
| CN202911907U (en) * | 2012-11-21 | 2013-05-01 | 宁波力盟工业有限公司 | Internal transmission |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314057A (en) * | 2014-07-30 | 2016-02-10 | 安宏亮 | Automatic transmission bicycle |
| CN110281694A (en) * | 2019-07-31 | 2019-09-27 | 佛山市大硕金属制品有限公司 | A kind of integrated wheel of built-in speed changer |
| CN110281694B (en) * | 2019-07-31 | 2023-02-14 | 佛山市大硕金属制品有限公司 | Integrated wheel capable of being internally provided with transmission |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140219 |