CN101244750A - Stepless automatic speed transmission of medial axis - Google Patents
Stepless automatic speed transmission of medial axis Download PDFInfo
- Publication number
- CN101244750A CN101244750A CNA2007100899898A CN200710089989A CN101244750A CN 101244750 A CN101244750 A CN 101244750A CN A2007100899898 A CNA2007100899898 A CN A2007100899898A CN 200710089989 A CN200710089989 A CN 200710089989A CN 101244750 A CN101244750 A CN 101244750A
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- gear
- axis
- brake hoop
- automatic transmission
- continuously variable
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention relates to a center shaft stepless automatic transmission, which adopts the planetary gear train as the main structure, comprising a planetary gear set and a brake arranged in a five-way unit, wherein, the planetary gear set comprising an internal gear, a planetary gear support, a planetary gear and an external gear; the brake is fixed in the five-way unit, which applies an adjustable friction brake force on the internal gear; when the resistance is different due to road condition change, the internal gear enables to generate different rotating speeds along with the adjustable friction brake force, thus the transmission ratio of the total transmission is changed in automatic and stepless mode, thereby, the rider is in appropriate riding state at any time no matter what road condition is. The center shaft stepless automatic transmission breaks the traditional technical mode of center shaft large chainwheel transmission, achieves the large chainwheel effect with small chainwheel, and has the advantages of simple and labor-saving operation, safe and reliable speed change, beautiful appearance and convenient use for foldable bikes.
Description
Technical field
The present invention relates to a kind of new drive device, especially a kind of axis continuously variable automatic transmission that can be used for bicycle.
Background technology
Existing bicycle is in order to adapt to different road conditions and environment, and what the rider must change oneself frequently steps on the power of pedaling to reach the different speed of a motor vehicle.Bicycle speed-varying unit can make the rider keep changing the speed of a motor vehicle to adapt to different road conditions and environment under the essentially identical condition of stepping on the power of pedaling, in other words, the rider can both obtain the comparatively suitable state that drives by the transmitting ratio that changes bicycle speed-varying unit under different road conditions conditions.
Yet above-mentioned traditional bicycle speed-varying unit has following weak point:
1, the necessary hand shift of rider, this causes the generation of accident causing diverting one's attention of rider in the process by bike.
2, change-speed box causes easily in the shift process and takes off chain.
3, the axis fluted disc is big, and is for folded bicycle, so neither attractive in appearance by it, uses also inconvenient.
Summary of the invention
Purpose of the present invention just provides a kind of axis continuously variable automatic transmission.This axis continuously variable automatic transmission rapid operation, safe and reliable, volume is little, in light weight, cost is low and the effect that can reach large fluted disc with small tooth plate.Both attractive in appearance, it is convenient to use again.
In order to achieve the above object, technical scheme of the present invention is as follows:
A kind of axis continuously variable automatic transmission comprises an axis, and five-way is positioned at the left crank and the right crank at these axis two ends, and left end cap and right end cap and fluted disc have compound planet gear and drg in the five-way; Described compound planet gear comprises inner gear, planetary gear carrier, planetary wheel and external gear, inner gear is installed in the five-way, planetary gear carrier is fixed on the axis, external gear is installed in this rotation relatively on the axis, compensating-gear shaft on the planetary gear carrier parallels with axis, compensating-gear shaft axially on planetary wheel is installed, planetary wheel respectively with inner gear and external gear engagement, described fluted disc is fixed on the external gear; Described drg is fixed in the five-way, and above-mentioned inner gear effect is had an adjustable friction brake force.
Described drg is made up of brake hoop, brake hoop controller and brake hoop connecting element, described brake hoop is one to have the annulus of breach, it is installed on the inner gear, inner gear is applied certain force of strain or coupling mechanism force, described brake hoop controller is connected with brake hoop, thereby having adjustable tension force or coupling mechanism force, this brake hoop controller changes the internal gear contact tension force of brake hoop or pressure produces different friction brake force, the contact surface of this brake hoop and inner gear is smooth side or rough surface, and described brake hoop connecting element is fixed on the five-way and in brake hoop and connects.
Characteristics of the present invention are that also described brake hoop also can be an annual spring.
Characteristics of the present invention are that also the drg in the described five-way can remove, and makes the axis continuously variable automatic transmission become the axis speed increaser.
Characteristics of the present invention are that also described inner gear can be fixed on the axis, and brake hoop is installed on the planetary gear carrier.
Compare with traditional bicycle speed-varying unit, the present invention has abandoned original change-speed box fully by stirring the conventional confguration that chain carries out gear shift, adopt the keystone configuration of planet circular system as described axis continuously variable automatic transmission, the drg that is fixed in the five-way applies certain friction brake force to the inner gear in the compound planet gear, cause when road condition change when stepping on the power of pedaling greater than default friction brake force, inner gear produces different rotating speeds thereupon, thereby change the transmitting ratio between planetary wheel and the external gear automatically, thereby can make the rider keep the substantially invariable power of pedaling of stepping on, no matter reach the effect that under which kind of road conditions condition rider can both be in the suitable state that drives.Above-mentioned default friction brake force is adjustable, whole speed-change process is to finish automatically with the variation of road conditions, main, the variation of revolution ratio is progressive stepless between the follower, therefore axis continuously variable automatic transmission of the present invention can adapt to the condition of road surface of garage at that time and automatically operate on the best transmitting ratio, and do not have repeatedly a trouble of gearshift, diverting one's attention when having avoided the rider to use traditional change-speed box variable block, also exempted the worry of chain releasing, the safety that has guaranteed speed change is with reliable, in addition, the present invention has also broken the technology mode of traditional axis large fluted disc transmission, realized crank, the fluted disc non-uniform movement can reach the effect of large fluted disc with small tooth plate.For folded bicycle, both attractive in appearance, it is convenient to use again.
Description of drawings:
Fig. 1: axis continuously variable automatic transmission front section view;
Fig. 2: Fig. 2 is the cutaway view of A-A among Fig. 1.
Sequence number among the figure: 1 left end cap, 2 bearings, 3 five-ways, 4 axis, 5 jump rings, 6 inner geares, 7 planetary wheels, 8 bearings, 9 right end caps, 10 fluted discs, 11 back of the body caps, 12 jump rings, 13 needle bearings, 14 external gears, 15 compensating-gear shafts, 16 planetary gear carriers, 17 brake hoops, 18 brake hoop controllers, 19 brake hoop connecting elements, 20 drgs, 21 compound planet gears, 22 right cranks, 23 left cranks.
Preferred forms
Below with reference to description of drawings preferred forms of the present invention.
A kind of axis continuously variable automatic transmission comprises an axis 4, and five-way 3 is positioned at the left crank 23 and the right crank 22 at these axis 4 two ends, and left end cap 1 and right end cap 9 and fluted disc 10 have compound planet gear 21 and drg 20 in the five-way 3; Described compound planet gear 21 comprises inner gear 6, planetary gear carrier 16, planetary wheel 7 and external gear 14, inner gear 6 is installed in the five-way 3, planetary gear carrier 16 is fixed on the axis 4, external gear 14 is enclosed within on the needle bearing 13 on the axis 4, this axle rotation relatively, compensating-gear shaft 15 on the planetary gear carrier 16 parallels with axis 4, compensating-gear shaft 15 axially on planetary wheel 7 is installed, planetary wheel 7 is hinged on the compensating-gear shaft 15, this axle rotation relatively, between planetary wheel 7 large internal gears 6 and the external gear 14, and planetary wheel 7 meshes with inner gear 6 and external gear 14 respectively, bearing 8 is installed on the external gear 14, and fluted disc 10 is fixed on the external gear 14; Described drg 20 is fixed in the five-way 3, and above-mentioned inner gear 6 effects are had an adjustable friction brake force.
Described drg 20 is by brake hoop 17, brake hoop controller 18 and brake hoop connecting element 19 are formed, described brake hoop 17 is one to have the annulus of breach, it is installed on the inner gear 6, inner gear 6 is applied certain force of strain or coupling mechanism force, should default tension force or coupling mechanism force can stop inner gear 6 to rotate, described brake hoop controller 18 is connected with brake hoop 17, this brake hoop controller 18 has adjustable tension force or thereby coupling mechanism force produces different friction brake force so that change the contact tension force or the pressure of 17 pairs of inner geares 6 of brake hoop, brake hoop 17 is smooth side or rough surface with the contact surface of inner gear 6, and described brake hoop connecting element 19 is fixed on the five-way 3 and in brake hoop 17 and connects.
In one embodiment of the invention, establishing inner gear 6 is 42 teeth, and planetary wheel 7 is 9 teeth, and external gear 14 is 22 teeth, 17 pairs of inner geares of brake hoop, 6 default certain friction brake force.When applying one to the stretcher on the crank 23, the rider steps on when pedaling power, when the road conditions condition better (normally smooth road) of bicycle walking, resistance when bicycle advances is just smaller, this moment the people step on the friction brake force that propulsive effort that the power of pedaling produces is not enough to overcome 17 pairs of inner geares 6 of brake hoop, inner gear 6 just is fixed and can't rotates, what at this moment bicycle advanced is fastest, crank 23 rotates one downwards when pedaling 360 ° of cycles, fluted disc rotates 1008 °, fluted disc 16 teeth are equivalent to 45 teeth, have reached the effect of large fluted disc with small tooth plate.When the road conditions condition of bicycle walking relatively poor (normally uneven road maybe when starting or go up a slope), resistance when bicycle advances is just bigger, necessary the stepping on of advancing this moment pedaled the friction brake force that propulsive effort will surpass 17 pairs of inner geares 6 of brake hoop, thereby make inner gear 6 along rotating identical direction rotation with planetary gear carrier 16, at this moment the transmitting ratio of axis continuously variable automatic transmission will change, and this transmitting ratio changes with the rotating speed of inner gear 6, external gear 14 is just with lower speed shelves output movement thus, thereby the required power of pedaling of stepping on is reduced, allow the rider under relatively poor road conditions condition, can drive bicycle more effortlessly.
By above description, this continuously variable automatic transmission can change transmitting ratio in automatic stepless ground with the variation of road conditions as can be known, so that the rider no matter under which kind of road conditions, can both advance with the roughly the same power of pedaling of stepping on, thereby all be in effortless optimum at any time and drive state.
The foregoing description is only in order to explanation the present invention but do not limit the present invention, any change that every spirit that does not break away from claim of the present invention is done and replace and all should belong to scope of the present invention.
Claims (7)
1. axis continuously variable automatic transmission, comprise an axis (4), five-way (3), be positioned at the left crank (23) and the right crank (22) at this axis (4) two ends, left end cap (1) and right end cap (9) and fluted disc (10), it is characterized in that compound planet gear (21) and drg (20) are arranged in the five-way (3); Described compound planet gear (21) comprises inner gear (6), planetary gear carrier (16), planetary wheel (7) and external gear (14), inner gear (6) is installed in the five-way (3), planetary gear carrier (16) is fixed on the axis (4), external gear (14) is enclosed within on the needle bearing (13) on the axis (4), this axle rotation relatively, compensating-gear shaft (15) on the planetary gear carrier (16) parallels with axis (4), compensating-gear shaft (15) axially on planetary wheel (7) is installed, planetary wheel (7) is hinged on the compensating-gear shaft (15), this axle rotation relatively, between planetary wheel (7) large internal gear (6) and the external gear (14), and planetary wheel (7) meshes with inner gear (6) and external gear (14) respectively, bearing (8) is installed on the external gear (14), and fluted disc (10) is fixed on the external gear (14); Described drg (20) is fixed in the five-way (3), and effect has an adjustable friction brake force to above-mentioned inner gear (6).
2. axis continuously variable automatic transmission as claimed in claim 1, it is characterized in that, described drg (20) is by brake hoop (17), brake hoop controller (18) and brake hoop connecting element (19) are formed, described brake hoop (17) is one to have the annulus of breach, it is installed on the inner gear (6), inner gear (6) is applied certain force of strain or coupling mechanism force, should default tension force or coupling mechanism force can stop inner gear (6) to rotate, described brake hoop controller (18) is connected with brake hoop (17), this brake hoop controller (18) have adjustable tension force or coupling mechanism force in case change brake hoop (17) to inner gear (6) thus contact tension force or pressure produce different friction brake force, brake hoop (17) is smooth side or rough surface with the contact surface of inner gear (6), and described brake hoop connecting element (19) is fixed on five-way (3) and upward and in brake hoop (17) connects.
3. axis continuously variable automatic transmission as claimed in claim 2 is characterized in that, described brake hoop (17) also can be the annual spring that has breach.
4. axis continuously variable automatic transmission as claimed in claim 1 is characterized in that, the drg (20) in the described five-way (3) can remove, and makes the axis continuously variable automatic transmission become the axis speed increaser.
5. axis continuously variable automatic transmission as claimed in claim 1 is characterized in that, described inner gear (6) can be fixed on the axis (4), and brake hoop (17) is installed on the planetary gear carrier (16).
6. axis continuously variable automatic transmission as claimed in claim 1 is characterized in that, the quantity of described compensating-gear shaft (15) can change as required.
7. axis continuously variable automatic transmission as claimed in claim 1 is characterized in that, described this continuously variable automatic transmission can be installed on the hind axle of bicycle as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100899898A CN101244750A (en) | 2007-02-16 | 2007-03-26 | Stepless automatic speed transmission of medial axis |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071797.4 | 2007-02-16 | ||
| CN200710071797 | 2007-02-16 | ||
| CNA2007100899898A CN101244750A (en) | 2007-02-16 | 2007-03-26 | Stepless automatic speed transmission of medial axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101244750A true CN101244750A (en) | 2008-08-20 |
Family
ID=39945487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100899898A Pending CN101244750A (en) | 2007-02-16 | 2007-03-26 | Stepless automatic speed transmission of medial axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101244750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015868A (en) * | 2014-06-17 | 2014-09-03 | 哈尔滨工程大学 | Novel linear speed change device for bicycle |
| CN110341870A (en) * | 2018-04-06 | 2019-10-18 | 株式会社岛野 | Human powered vehicle component |
| US11407471B2 (en) | 2017-10-24 | 2022-08-09 | Shimano Inc. | Bicycle system |
-
2007
- 2007-03-26 CN CNA2007100899898A patent/CN101244750A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015868A (en) * | 2014-06-17 | 2014-09-03 | 哈尔滨工程大学 | Novel linear speed change device for bicycle |
| US11407471B2 (en) | 2017-10-24 | 2022-08-09 | Shimano Inc. | Bicycle system |
| CN110341870A (en) * | 2018-04-06 | 2019-10-18 | 株式会社岛野 | Human powered vehicle component |
| CN110341870B (en) * | 2018-04-06 | 2021-10-26 | 株式会社岛野 | Assembly for a human powered vehicle |
| TWI835788B (en) * | 2018-04-06 | 2024-03-21 | 日商島野股份有限公司 | Human powered vehicle components |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080820 |