CN106969103A - A kind of internal speed variator of bicycle and its arrangements for speed regulation - Google Patents
A kind of internal speed variator of bicycle and its arrangements for speed regulation Download PDFInfo
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- CN106969103A CN106969103A CN201710377912.4A CN201710377912A CN106969103A CN 106969103 A CN106969103 A CN 106969103A CN 201710377912 A CN201710377912 A CN 201710377912A CN 106969103 A CN106969103 A CN 106969103A
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- Prior art keywords
- speed
- gear
- planet
- rear class
- prime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
- B62M11/18—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears with a plurality of planetary gear units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Abstract
It is according to a kind of advantage of internal speed variator of bicycle and its arrangements for speed regulation provided by the present invention：Increase in demand that can be by gear or the quantity of reduction prime planetary gearsets and rear class planet module, flexible design, it is particularly suitable for the internal speed variator of bicycle system of multi gear digit, can sets that smaller speed change is differential and more transmission ranges meet the demand of bicyclist, such as：It is achievable 15 grades speed change output only to need 7 groups of planetary gears, is effectively equivalent to the bicycle shift position of the 21 outer speed changes of speed（Because the part transmission range of outer 21 outer multi-speed bicycles is overlapping）When speed than it is differential be set in 1.1 or so when, total no-load voltage ratio is up to 4.18, and control system of the present invention is extremely simple, only need to stir the Variable speed spanner for being arranged on handlebar, drive cam axle, so that cam framework moves up and down locking, unlocks corresponding planetary ring gear, and only need 2 grades of gear auxiliary driving, efficiency high, it is simple in construction, be greatly reduced appearance and size and weight, the shifting needs of all kinds of bicycles can be fully met.
Description
Technical field
The invention belongs to bicycle speed-varying unit field, it is related to a kind of internal speed variator of bicycle and its arrangements for speed regulation.
Background technology
Existing bicycle shift system is roughly divided into two kinds, and a kind of is to pass through gear shift in bicycle rear shaft
Internal speed-changing system, another outer speed change to set setting multi-chain gear wheel on multistage chain wheel and rear vehicle shaft on bicycle middle shaft
System, wherein, it is widely used as the outer speed change system of multistage adjustable speed simple in construction, but there is also some not
Foot, such as：In stationary vehicle can not speed change, vehicle traveling in speed change when, chain easily comes off with sprocket wheel, due to speed change part
Exposure outside, need to frequently maintain and just can guarantee that it runs well, and internal speed-changing system then solves chain and sprocket wheel in speed change
The problem of easily coming off, while because its gear part is all enclosed in housing substantially so that it maintains simple, easy, but
Compared with outer speed change system, its maximum deficiency is exactly that its transmission range is very few, and driving torque fluctuation is excessive, particularly at some
During special road section, it is impossible to be adjusted to the torque required for bicyclist, i.e. gear very little, so as to limit it in bicycle art
Overall application, with advances in technology, some bicycle producers have developed many gear bicycle internal speed-changing systems in succession, but from
The transmission range of existing outer multi-speed bicycle is also reached for transmission range far away, and with the increase of gear, internal speed-changing is adjusted
The complex degree of structure of speed system is also greatly increased therewith, and its cost is too high, and volume, weight are excessive etc., and factor also causes it can not
In bicycle trade popularization and application.
The content of the invention
The present invention is provided in order to solve the above problems, its object is to provide to go by the increase in demand or reduction of gear
The quantity of star gear train and planet module, you can reach design requirement, and lightweight, small volume, speed governing is simple, easy care
A kind of internal speed variator of bicycle and its arrangements for speed regulation.
The present invention is for a kind of internal speed variator of bicycle and its arrangements for speed regulation realizing above-mentioned goal of the invention and provide, bag
Include a kind of internal speed variator of bicycle being arranged on vehicle frame and a kind of arrangements for speed regulation of matched linkage.
A kind of described internal speed variator of bicycle, including vehicle frame, handlebar, crank shaft, chain wheel etc., in bicycle rack installation
Provided with least one set of planet module in the sleeve of axle, the planet module is provided with ratchet by one group between sun gear and ring gear
Planetary gear is constituted, wherein, the groove provided with axial direction on the ring gear of planetary gearsets is cylindrical, to coordinate the convex of arrangements for speed regulation
The locking to planetary gear ring gear is played, the planet carrier of planetary gearsets is coaxially fixed with the crank shaft inputted as power, OK
The sun gear of star gear train is fixedly connected with power output shaft and set with crank shaft in coaxial circumferential slippage, and chain wheel is defeated with power
It is power output that shaft, which fixes continuous cropping, and the locking of the cylindrical upper groove of the ring gear of planetary gearsets is reached with unblock by projection
Exported to different rotating speeds, so as to reach the purpose of speed change.
A kind of described internal speed variator of bicycle, in order to expand total no-load voltage ratio of internal speed changer, reduces speed than differential, voluntarily
The prime and at least one set that vehicle frame installs provided with least one set of planetary gear composition in the sleeve of axis are made up of planet module
Rear class, wherein, axial groove is equipped with the ring gear of prime and rear class planetary gearsets is cylindrical, to coordinate speed governing to fill
The raised locking put, prime planet gear carrier and the planet carrier of rear class planet module are rigidly connected, prime planetary gear
Sun gear coaxially fixed with the crank shaft that is inputted as power, the sun gear of rear class planet module is fixed with power output shaft to be connected
Connect and set with crank shaft in coaxial circumferential slippage, it is power output that chain wheel fixes continuous cropping with power output shaft, right by projection
The locking of the cylindrical upper groove of ring gear of prime or the different planetary gearsets of rear class reaches different rotating speed outputs from unblock,
So as to reach the purpose of speed change.
Described a kind of internal speed variator of bicycle, in order to provide smaller speed while total no-load voltage ratio of internal speed changer is expanded
Than differential, it is provided with and is made up of the planetary gear of multigroup coaxial parallel different no-load voltage ratios in the sleeve of bicycle rack installation axis
Prime, and multigroup coaxial serial rear class being made up of the planet module of different no-load voltage ratios, wherein, in prime and rear class planet
Axial groove is equipped with the ring gear of gear train is cylindrical, to coordinate the raised locking of arrangements for speed regulation, prime each group planet
The sun gear of gear is coaxially fixed with the crank shaft inputted as power, the planetary planet carrier of prime each group and rear class first
The planet carrier of group planet module is rigidly connected mutually, the sun gear of every group of planet module of rear class and the row of next group of planet module
Carrier is connected, and the sun gear of last group of planet module is fixedly connected with power output shaft and is in coaxial circumferential slippage with crank shaft
Set, chain wheel is fixedly connected with power output shaft as power output, due to the planetary gear of prime multi-set parallel set and after
The multigroup serial planet module setting of level, while total no-load voltage ratio of speed changer is expanded, can also bring more transmission ranges to adjust
Section, by the locking and unblock of the planetary gearsets ring gear different to prime or rear class, to reach different rotating speed outputs.
It should be noted that：So-called planetary gearsets parallel can be construed to：The sun gear of each group planetary gearsets is same
Axle is rigidly connected and the connection of planet carrier coaxial rigid, and so-called planet module can be serially construed to：Planet module is organized before rear class
Sun gear be connected as power output with the planet carrier coaxial rigid that rear group planet module is inputted as power.
After the ring gear of rear class planet module unlocks, planet carrier moves ring gear and sun gear as power input belt
Rotate in same direction, when sun gear is as power output, because the monodirectional locking of ratchet is limited, ring gear can only be in the same direction with sun gear
Synchronized to rotate, now the ring gear of planet module is rotated at the same speed in the same direction with planet carrier and sun gear, equivalent to prime planetary gear
The planet carrier and power output shaft of group are direct-connected, and the planetary gearsets of the minimum no-load voltage ratio of prime are the minimum no-load voltage ratio of speed changer.
After projection on by cam framework moves down the ring gear of locking rear class planet module, the highest of speed changer
Total no-load voltage ratio is equal to the product of the no-load voltage ratio and the planetary gearsets no-load voltage ratio of prime highest no-load voltage ratio of the highest no-load voltage ratio planet module of locking, this
When speed changer the total no-load voltage ratio=speed changer of highest highest no-load voltage ratio/speed changer minimum no-load voltage ratio, it is therefore seen that, as rear class is serial
The increase of planet module can great transmission expansion device total no-load voltage ratio so that its application is extended, and due to there was only two
Level gear drive so that transmission efficiency is improved.
Described a kind of internal speed variator of bicycle, in order to be maintained at the ring gear of first group of planet module of rear class in locking
Afterwards, planet module enters the ride comfort of speed change after work, the no-load voltage ratio and first group of row of prime of first group of level planet module of rear class
The no-load voltage ratio product of star gear is more than prime, and last organizes planetary no-load voltage ratio.
Described a kind of internal speed variator of bicycle, in order to expand the total no-load voltage ratio of speed changer, in the ring gear of rear class planet module
When unlocking, ratchet is in locking state.
A kind of described arrangements for speed regulation, applied to internal speed variator of bicycle, including：The sleeve of axis is installed in bicycle rack
Camshaft stand is provided with, rotatable camshaft is provided with camshaft stand, cam is installed with camshaft,
Provided with the cam framework that can be moved up and down with the rotation of cam outside cam, it is provided with and prime planetary gear on cam framework
And the ring gear of rear class planet module it is cylindrical on fit depressions it is raised, when cam framework is moved up and down so that raised
Ring gear is locked into the cylindrical groove of planetary gear ring gear when moving down, or projection departs from internal tooth when moving up
The cylindrical groove of circle, releases the locking to ring gear, passes through the ring gear of the projection planetary gearsets different to prime or rear class
Cylindrical upper groove locking come reach power output shaft it is different rotating speed output, so as to reach the purpose of speed change.
Described a kind of arrangements for speed regulation, in order to provide more gear selections to bicyclist, to reduce the ripple of driving torque
It is dynamic, more to adapt to the demand of bicyclist, the multigroup planet of correspondence internal speed changer prime on the sleeve of axis is installed in bicycle rack
The position of gear sets a set of arrangements for speed regulation, and the multigroup planet of correspondence internal speed changer rear class on the sleeve of axis is installed in bicycle rack
The position of module sets another set of arrangements for speed regulation.
Described a kind of arrangements for speed regulation, in order to realize that, when speed governing rotating disk is rotated, the projection on cam framework can be on demand
The cylindrical groove of the corresponding planetary gearsets ring gear of occlusion, cam is pacified from camshaft by spline by different warp-wise angles
Dress.
Described a kind of arrangements for speed regulation, in order to realize the convenient control to each group planetary gear ring gear, on camshaft
Axially be provided with side by side with planetary gearsets quantity identical cam and cam framework, set between cam framework and axis sleeve
There is back-moving spring, speed governing rotating disk is provided with one end of camshaft, by rotating speed governing driven by rotary disc cam rotation.
A kind of described arrangements for speed regulation, in order to also carry out the regulation of transmission range when vehicle stops, and make projection exist
Planetary gear ring gear is rotated to smoothly entering snap-lock ring gear after groove, raised and groove during circumference optional position
Mutual corresponding sharp-tooth shaped structure is set to, wherein, the flank of tooth of pointed tooth stress is vertical with the tangent to periphery direction of ring gear.
A kind of described arrangements for speed regulation, in order to which transmission range is easy to adjust, speed change is respectively arranged on the left side and the right side in handlebar
Gear spanner, and connected by cable with the speed governing rotating disk on the arrangements for speed regulation of corresponding prime and rear class.
By above description it can be seen that：When the ring gear of rear class planet module is not locked, rear class planet module
Internal gear, planet carrier, sun gear genlocing, equivalent to a rigidly connected axle, when the parallel multigroup difference of locking prime
The ring gear that planetary any one group of no-load voltage ratio, all can have different rotating speeds to export to power output shaft.
It should be noted that：The no-load voltage ratio of above-mentioned planetary gearsets is：Output speed/input speed, parallel many of prime
The different no-load voltage ratio planetary gearsets of group can only lock one of which, can not lock simultaneously more than two, otherwise will occur transmission lock
Dead phenomenon, the locking to the multigroup planet module of rear class is unrestricted, can be according to the combination of locking respectively to rear class each group planet module
Go out different rotating speed outputs.
When the ring gear locking of rear class primary planet module, rear class planet module can all be changed into one group of common planet
Gear is driven, and now prime planetary gearsets are serial as power transmission with rear class planet module, and now power is through with after
The rigidly connected power output shaft output of sun gear of level planet module.
In summary：The planet module of the no-load voltage ratio of the planetary gearsets of the no-load voltage ratio of speed changer=prime locking × rear class locking
Group no-load voltage ratio（In the ring gear locking of the planet module of rear class, no-load voltage ratio=1）.
The group number of the variable speed planetary gear group of the different no-load voltage ratios of the transmission range of speed changer=prime ×（Rear class planet module group
Number+n）, wherein n is：Part planet module in the equal unlocked state+rear class of ring gear of rear class each group planet module is multigroup
Ring gear be locked state+rear class each group planet module ring gear have locked out state, i.e.,：Number of states sum.
For example：When rear class is tri- groups of planet modules of A, B, C, the planet of the different no-load voltage ratios of transmission range=prime of speed changer
Group number × 8 of gear train, (three groups of planet modules As, B, C are unlocked+the planet module of locking：A, B, C, AB, AC, BC, ABC,
Totally 8 kinds of states).
It is according to a kind of advantage of internal speed variator of bicycle and its arrangements for speed regulation provided by the present invention：Can be by gear
Increase in demand or the quantity for reducing prime planetary gearsets and rear class planet module, flexible design are particularly suitable for multi gear digit
Internal speed variator of bicycle system, can set that smaller speed change is differential and more transmission ranges meet the demand of bicyclist, such as：
It is achievable 15 grades speed change output only to need 7 groups of planetary gears, is effectively equivalent to the bicycle shift position of the 21 outer speed changes of speed（Because outer
The part transmission range of 21 outer multi-speed bicycles is overlapping）, when speed than it is differential be set in 1.1 or so when, total no-load voltage ratio up to 4.18, this
Invention control system is extremely simple, need to only stir the Variable speed spanner for being arranged on handlebar, drives cam axle so that cam framework
Move up and down locking, unlock corresponding planetary ring gear, and only need 2 grades of gear auxiliary driving, efficiency high, knot
Structure is simple, be greatly reduced appearance and size and weight, can fully meet the shifting needs of all kinds of bicycles.
Brief description of the drawings
By below in conjunction with the accompanying drawings to embodiment further describe elaborate the present invention design and application.
Fig. 1 is a kind of internal speed variator of bicycle of the invention and its structure diagram of arrangements for speed regulation embodiment
Fig. 2 is a kind of internal speed variator of bicycle of the invention and its structural representation of arrangements for speed regulation embodiment
Fig. 3 is the schematical sectional view splitted along Fig. 2 line A-A
Fig. 4 is Fig. 2 schematical sectional view splitted of line B-B
Fig. 5 is Fig. 2 A0 partial enlarged drawings
Fig. 6 is Fig. 1 A01 partial enlarged drawings
Fig. 7 is Fig. 1 A1 partial enlarged drawings
Embodiment：
Now, it will be described according to the embodiment of the present invention, its example is illustrated in the accompanying drawings.Hereinafter, with reference to the accompanying drawings
Embodiment is described, to explain the present general inventive concept.
As shown in Fig. 1 to 2, described a kind of internal speed variator of bicycle, in order to expand the same of total no-load voltage ratio of internal speed changer
When bring more transmission ranges to adjust, install to be provided with the sleeve 2 of axis in bicycle rack and coaxial parallel different become by 7 groups
The prime that the planetary gear of ratio is constituted, and after 2 groups of coaxial serial planet modules As 1 by different no-load voltage ratios, A2 are constituted
Level, wherein, planet module is made up of one group of planetary gear that ratchet is provided between sun gear and ring gear, in prime and rear class
Axial groove 7 is equipped with the ring gears of planetary gearsets is cylindrical, with the locking for the projection 9 for coordinating arrangements for speed regulation, prime
One group of planetary sun gear 4 and the planetary sun gear of remaining each group are coaxial solid with the crank shaft 3 inputted as power
It is fixed, the planetary planet carrier 1 of first group of prime and the planetary planet carrier of remaining each group and first group of planet module of rear class
Planet carrier 18 be rigidly connected mutually, the sun gear 14 of first group of planet modules A 1 of rear class and the row of next group of planet modules A 2
Carrier 13 is connected, and the sun gear 11 of second group of planet module is fixedly connected with power output shaft 12 and is in coaxial circles with crank shaft 3
Slide in week and set, chain wheel 25 is fixedly connected as power output with power output shaft 12, due to the planet tooth of prime multi-set parallel
Wheel setting and the multigroup serial planet module setting of rear class, while total no-load voltage ratio of speed changer is expanded, can also bring more
Transmission range is adjusted, by the locking of the planetary gearsets ring gear different to prime or rear class, defeated come the rotating speed that reaches different
Go out.
As shown in figure 1, a kind of described internal speed variator of bicycle, in order to be maintained in first group of planet modules A 1 of rear class
Gear ring 17 is after locking, and planet modules A 1 enters the ride comfort of speed change after work, the no-load voltage ratio of first group of planet modules A 1 of rear class
Being more than prime with first group of planetary no-load voltage ratio product of prime, last organizes planetary no-load voltage ratio.
Described a kind of internal speed variator of bicycle, in order to expand the total no-load voltage ratio of speed changer, in the ring gear of rear class planet module
When unlocking, ratchet is in locking state.
As shown in Figures 2 to 4, described a kind of arrangements for speed regulation, applied to internal speed variator of bicycle, including：In bicycle rack
The sleeve 2 for installing axis is provided with camshaft stand 21, rotatable camshaft 20 is provided with camshaft stand 21, in cam
Cam 24 is installed with axle 20, provided with the cam framework that can be moved up and down with the rotation of cam 24 outside cam 24
22, be provided with cam framework 22 with prime planetary gear and the ring gear of rear class planet module it is cylindrical on groove 7 match
Projection 9 is closed, when cam framework 22 is moved up and down so that projection 9 is cylindrical into planetary gear ring gear when moving down
Groove 7 locks ring gear 6, or projection 9 departs from the cylindrical groove 7 of ring gear when moving up, and releases the lock to ring gear 6
It is fixed, reach that power is defeated by the locking of raised 9 pairs of primes or the cylindrical upper groove 7 of ring gear of the different planetary gearsets of rear class
The different rotating speed output of shaft, so as to reach the purpose of speed change.
As shown in Fig. 2 a kind of described arrangements for speed regulation, in order to provide more gear selections to bicyclist, to reduce biography
The fluctuation of kinetic moment, more to adapt to the demand of bicyclist, is installed on the sleeve 2 of axis before correspondence internal speed changer in bicycle rack
The multigroup planetary position of level sets a set of arrangements for speed regulation, and correspondence internal speed changer on the sleeve 2 of axis is installed in bicycle rack
The position of the multigroup planet module of rear class sets another set of arrangements for speed regulation.
As shown in Fig. 2 to 3, a kind of described arrangements for speed regulation, in order to realize when speed governing rotating disk 19 is rotated, cam framework 22
On projection 9 can be engaged the cylindrical groove 7 of corresponding planetary gearsets ring gear on demand, cam 24 passes through with camshaft 20
Spline is installed by different warp-wise angles.
As shown in Fig. 2 a kind of described arrangements for speed regulation, in order to realize the convenient control to each group planetary gear ring gear,
On camshaft 20 axially be provided with side by side with planetary gearsets quantity identical cam 24 and cam framework 22, in cam framework
Back-moving spring 23 is provided between 22 and axis sleeve 2, speed governing rotating disk 19 is provided with one end of camshaft, by rotating speed governing rotating disk
19 band moving cams 24 are rotated.
As shown in figure 3, a kind of described arrangements for speed regulation, in order to also carry out the regulation of transmission range when vehicle stops,
And projection 9 can be smoothly entered snap-lock internal tooth after groove 7 when planetary gear ring gear is rotated to circumference optional position
Circle, projection 9 is set to mutual corresponding sharp-tooth shaped structure with groove 7, wherein, the flank of tooth of pointed tooth stress and the circumference of ring gear are cut
Line direction is vertical.
A kind of described arrangements for speed regulation, in order to which transmission range is easy to adjust, speed change is respectively arranged on the left side and the right side in handlebar
Gear spanner, and connected by cable with the speed governing rotating disk 19 on the arrangements for speed regulation of corresponding prime and rear class.
It should be noted that：Above-described embodiment speed governing and sets more gears for convenience, when prime is arranged to 7 groups of rows
Star gear, 2 groups of planet modules of rear class are arranged to：It is described during three kinds of states that A1 lockings, A2 lockings and A1A2 are not locked
A kind of internal speed variator of bicycle can become dissolve 7 × 3=21 speed output, it is right the need for can meeting most of bicycles substantially
The bicycle that ordinary municipal is ridden, can also reduce transmission range, with one group of prime planetary gear and one group of rear class planet module
Combination can obtain three kinds of speed stages, such as only can obtain two kinds of speed stages with one group of planet module, and structure is also simpler, from
Above description can be seen that can by gear demand, increase or decrease the quantity of planetary gearsets and planet module, you can reach
Design requirement, flexible design is particularly suitable for the transmission system of multi gear digit, above is being retouched to the specific of embodiment of the present invention
State, this is not the restriction to the spirit and scope of the present invention, on the premise of design concept of the present invention is not departed from, in this area
Various modifications and improvement that ordinary skill technical staff makes to the present invention, all should fall into protection scope of the present invention, the present invention
Claimed technology contents are already recorded in claims.
Claims (10)
1. a kind of internal speed variator of bicycle, including vehicle frame, handlebar, crank shaft, chain wheel etc., it is characterised in that：In bicycle rack peace
Fill provided with least one set of planet module in the sleeve of axis, the planet module is provided with spine by one group between sun gear and ring gear
The planetary gear composition of wheel, wherein, the groove provided with axial direction on the ring gear of planetary gearsets is cylindrical, to coordinate arrangements for speed regulation
The raised locking to planetary gear ring gear, the planet carrier of planetary gearsets and the crank shaft inputted as power are coaxially solid
Fixed, the sun gear of planetary gearsets is fixedly connected with power output shaft and with crank shaft in the setting of coaxial circumferential slippage, chain wheel and
It is power output, the locking to the cylindrical upper groove of the ring gear of planetary gearsets and solution by projection that power output shaft, which fixes continuous cropping,
Lock to reach different rotating speed output, so as to reach the purpose of speed change.
2. a kind of internal speed variator of bicycle as claimed in claim 1, it is characterised in that：The sleeve of axis is installed in bicycle rack
Interior prime and at least one set of rear class being made up of planet module provided with least one set of planetary gear composition, wherein, in prime
And rear class planetary gearsets ring gear it is cylindrical on be equipped with axial groove, it is preceding to coordinate the raised locking of arrangements for speed regulation
Level planet gear carrier and the planet carrier of rear class planet module are rigidly connected, and the planetary sun gear of prime is with being used as power
The crank shaft of input is coaxially fixed, and the sun gear of rear class planet module is fixedly connected with power output shaft and with crank shaft in coaxial
Circumferential slippage is set, and it is power output that chain wheel fixes continuous cropping with power output shaft, passes through the projection row different to prime or rear class
The locking of the cylindrical upper groove of ring gear of star gear train reaches different rotating speed outputs from unblock, so as to reach the mesh of speed change
's.
3. a kind of internal speed variator of bicycle as described in claim 1 to 2, it is characterised in that：Axis is installed in bicycle rack
The prime being made up of the planetary gear of multigroup coaxial parallel different no-load voltage ratios is provided with sleeve, and it is multigroup coaxial serial by not
The rear class constituted with the planet module of no-load voltage ratio, wherein, it is equipped with the ring gear of prime and rear class planetary gearsets is cylindrical
The groove of axial direction, to coordinate the raised locking of arrangements for speed regulation, the planetary sun gear of prime each group as power with inputting
Crank shaft coaxially fix, the planet carrier of the planetary planet carrier of prime each group and first group of planet module of rear class is mutually just
Property connection, the sun gear of each group of planet module of rear class is connected with the planet carrier of next group of planet module, last group of planet mould
The sun gear of block is fixedly connected with power output shaft and set with crank shaft in coaxial circumferential slippage, and chain wheel is consolidated with power output shaft
Fixed connection is as power output, and planetary gear setting and the multigroup serial planet module of rear class due to prime multi-set parallel are set
It is fixed, while total no-load voltage ratio of speed changer is expanded, it can also bring more transmission ranges to adjust, by different to prime or rear class
Planetary gearsets ring gear locking and unblock, to reach different rotating speeds outputs.
4. a kind of internal speed variator of bicycle as claimed in claim 3, it is characterised in that：In order to be maintained at first group of planet of rear class
The ring gear of module is after locking, and planet module enters the ride comfort of speed change after work, first group of level planet module of rear class
No-load voltage ratio is more than prime with the planetary no-load voltage ratio product of first group of prime, and last organizes planetary no-load voltage ratio, in rear class planet mould
When the ring gear of block unlocks, ratchet is in locking state.
5. a kind of arrangements for speed regulation, it is characterised in that：Applied to internal speed variator of bicycle, it is included in the set that bicycle rack installs axis
Cylinder is provided with camshaft stand, and rotatable camshaft is provided with camshaft stand, cam is installed with camshaft,
Provided with the cam framework that can be moved up and down with the rotation of cam outside cam, it is provided with and prime planet tooth on cam framework
Wheel and the ring gear of rear class planet module it is cylindrical on fit depressions it is raised, when cam framework is moved up and down so that convex
Rise interior into the groove locking ring gear that planetary gear ring gear is cylindrical, or projection disengaging when moving up when moving down
The cylindrical groove of gear ring, releases the locking to ring gear, passes through the internal tooth of the projection planetary gearsets different to prime or rear class
Enclose the locking of cylindrical upper groove to reach that the different rotating speed of power output shaft is exported, so as to reach the purpose of speed change.
6. a kind of arrangements for speed regulation as claimed in claim 5, it is characterised in that：Correspondence on the sleeve of axis is installed in bicycle rack
The multigroup planetary position of internal speed changer prime sets a set of arrangements for speed regulation, and correspondence on the sleeve of axis is installed in bicycle rack
The multigroup planetary position of internal speed changer rear class sets another set of arrangements for speed regulation.
7. a kind of arrangements for speed regulation as claimed in claim 5, it is characterised in that：Cam presses different warps from camshaft by spline
Installed to angle.
8. a kind of arrangements for speed regulation as claimed in claim 5, it is characterised in that：Axially it is provided with side by side and planet on camshaft
Gear train quantity identical cam and cam framework, are provided with back-moving spring, in camshaft between cam framework and axis sleeve
One end be provided with speed governing rotating disk, by rotating speed governing driven by rotary disc cam rotation.
9. a kind of arrangements for speed regulation as claimed in claim 5, it is characterised in that：It is raised to be set to mutual corresponding pointed tooth with groove
Shape structure, wherein, the flank of tooth of pointed tooth stress is vertical with the tangent to periphery direction of ring gear.
10. a kind of arrangements for speed regulation as claimed in claim 5, it is characterised in that：Speed change is respectively arranged on the left side and the right side in handlebar
Gear spanner, and connected by cable with the speed governing rotating disk on the arrangements for speed regulation of corresponding prime and rear class.
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| CN201710377912.4A CN106969103A (en) | 2017-05-25 | 2017-05-25 | A kind of internal speed variator of bicycle and its arrangements for speed regulation |
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| CN106969103A true CN106969103A (en) | 2017-07-21 |
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| CN113028021A (en) * | 2021-02-26 | 2021-06-25 | 苏州市职业大学 | Chainless multi-stage speed change mechanism |
| CN113247170A (en) * | 2021-06-01 | 2021-08-13 | 上海第二工业大学 | Two-gear speed-changing chainless transmission shaft of bicycle |
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