CN202022292U

CN202022292U - Reciprocating type speed-increasing driving mechanism of bicycle

Info

Publication number: CN202022292U
Application number: CN2011201410221U
Authority: CN
Inventors: 王宏新
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-06
Filing date: 2011-05-06
Publication date: 2011-11-02
Anticipated expiration: 2021-05-06

Abstract

The utility model discloses a reciprocating type speed-increasing driving mechanism of a bicycle, which comprises cranks, a hub, a hub shaft-type supporting body, a reciprocating moving mechanism, a one-way driving mechanism, a moving speed-increasing mechanism and a moving output mechanism, wherein the reciprocating moving mechanism, the one-way driving mechanism, the moving speed-increasing mechanism and the moving output mechanism are installed in the hub shaft-type supporting body; the hub is arranged on the hub shaft-type supporting body; the hub and the hub shaft-type supporting body are in rolling friction; the output end of the moving output mechanism is connected with the hub through a gear; the reciprocating type speed-increasing driving mechanism has the characteristics that two cranks are respectively and fixedly connected with the shaft fluted disc and central gear shaft of the reciprocating moving mechanism; the shaft fluted disc and central gear shaft of the reciprocating moving mechanism are respectively connected with the one-way driving mechanism which is installed between the reciprocating moving mechanism and the moving speed-increasing mechanism; and the input end of the moving output mechanism is connected with the moving speed-increasing mechanism. The reciprocating type speed-increasing driving mechanism of the bicycle has a compact structure, convenience in structural arrangement and high transmission efficiency.

Description

The reciprocating type speedup driver train of bicycle

Technical field

The utility model relates to a kind of bicycle driving and transmission device, particularly relates to the reciprocating type speedup driver train of bicycle.

Background technology

Traditional bicycle carries out transferring power and speedup by sprocket wheel and chain, its shortcoming is that drive disk assembly exposes, need cleaned at regular intervals and last wet goods handling labor, the situation of chain releasing also can take place sometimes, cyclist's the clothes of making dirty easily, and chain and sprocket engagement expose, and be also dangerous during use, and the structure of whole transmission device is not compact yet; Simultaneously, when the pedal of standard bicycle was made circular movement around axis, the arm of force between pedal and the axis constantly changed, and had upward lower dead point, and the efficient of riding is not high.

The patent No. is the driver train of the rod driven bicycles of ZL85106710, comprise parts of forming by pedal, a pair of arm, a pivot and a pair of bar, be installed on the main shaft, chain is installed on the sprocket wheel, and this sprocket wheel is connected with wheel hub on being contained in hind axle by a pair of free-wheel clutch.Chain is connected with arm, and when the motroist treadles, when lever arm swung up and down, chain was reciprocating.

Though the patent No. is the driver train of the rod driven bicycles of ZL85106710 to be changed the pedal of standard bicycle into pedal around axis as circular movement and pumps, solved standard bicycle in the process of riding between pedal and the axis arm of force have the problem of lower dead point, but chain sprocket is arranged still in the drive disk assembly, not solving drive disk assembly exposes, the problem of chain releasing also can take place sometimes, and the structure of whole transmission device is not compact yet.

The patent No. is a kind of reciprocating drive mechanism for bicycle of ZL200810035815.8, comprise flower-drum and axle rod, its structure is: the center of axle rod, the round slab of a vertical fastening symmetrical perforate, on the circumference of circle slab, correspondence has the axis hole of dress axle, on the axle bevel planet gear is housed, with mesh respectively by the conical gear of the duplex sun gear of ball and bearings on the axle rod of both sides, the round slab both sides of dress bevel planet gear on the axle rod, respectively be equipped with lower member by middle mind-set bilateral symmetry ground according to this: one-way drive mechanism is arranged, gear increaser mechanism; The swing stop gear.After implementing the present invention, overcome the shortcoming that drive disk assembly exposes, all drive disk assemblies of the present invention are all located in the obturator, and the cyclist's that can not make dirty clothes does not need cleaned at regular intervals and oils, and has omitted handling labor; Do not had driving chain, the situation of chain-taking also can not take place, used very safely, structure is very compact.

But, the patent No. is that a kind of reciprocating drive mechanism for bicycle structure of ZL200810035815.8 is too complicated, the identical multilevel hierarchy in the left and right sides can only be finished the partial function of repetition, and the slow counter motion of left and right sides crank is slowed down by speedup again and is finished, structure and driving efficiency are not high, in the practical application, mechanism's volume can not be excessive and speedup to reach under the necessarily required constraint, owing to the part multiplying wheel is not easy to reach requirement of strength and the short actual application value that lost of its flower-drum.

Summary of the invention

The purpose of this utility model provides the reciprocating type speedup driver train of a kind of bicycle, and the reciprocating type speedup driving mechanism structure of this bicycle compactness, arrangement of mechanism is convenient, flexible, driving efficiency is high.

In order to achieve the above object, the reciprocating type speedup driver train of bicycle of the present utility model, comprise crank, wheel hub, wheel hub shaft type supporter, reciprocating mechanism, one-way drive mechanism, motion speed increasing mechanism and motion output mechanism, reciprocating mechanism, one-way drive mechanism, motion speed increasing mechanism and motion output mechanism are installed in the wheel hub shaft type supporter, wheel hub is installed on the wheel hub shaft type supporter, be rolling friction between wheel hub and the wheel hub shaft type supporter, the mouth of motion output mechanism is connected with wheel hub by gear, it is characterized in that: two cranks are captiveed joint with sun gear shaft with the axle fluted disc of reciprocating mechanism respectively, the axle fluted disc of reciprocating mechanism is connected with one-way drive mechanism respectively with sun gear shaft, one-way drive mechanism is installed between reciprocating mechanism and the motion speed increasing mechanism, and the input end of motion output mechanism is connected with the motion speed increasing mechanism; Reciprocating mechanism is made up of axle fluted disc, sun gear shaft and reverse compound planetary wheel, between axle fluted disc and the sun gear shaft plain bearing is installed, and an axle fluted disc has the internally toothed annulus structure, and the internally toothed annulus radius is R _In, sun gear shaft has the external gear structure, and the external gear radius is R _Outward, the fixing reverse compound planetary wheel of axle is the combination of small one and large one gear, radius is respectively R _{Outside the star}And R _{In the star}, the oppositely internally toothed annulus engagement of compound planetary wheel big gear wheel part and axle fluted disc, oppositely relational expression: R is satisfied in the external gear engagement of compound planetary wheel miniature gears part and sun gear shaft simultaneously _Outward+ R _{Outside the star}+ R _{In the star}=R _InWith R _Outward/ R _{Outside the star}=R _In/ R _{In the star}, because reciprocating mechanism adopts the compound planetary wheel construction, the driving efficiency height, part is few, and is simple in structure.

Described reciprocating mechanism can also be that awl toothing, the awl toothing on the sun gear shaft on the fluted disc formed with the reverse bevel gear set engagement that axle is fixed on the support sleeve.

Because reciprocating mechanism, one-way drive mechanism, motion speed increasing mechanism and motion output mechanism have only one tunnel drive path, rather than about the identical structure of two covers can only finish the partial function of repetition, compact conformation, arrangement convenience is flexible, and the driving efficiency height.

The reciprocating type speedup driver train of described bicycle is characterized in that: one-way drive mechanism is the inner gearing type ratchet-ratchet overriding clutch that is furnished with two interior ring structures in the ratchet, and this two interior ring links to each other with sun gear shaft with the axle fluted disc respectively.

Described one-way drive mechanism can also be the Wedge type over running clutch that is furnished with ring in two in the outer shroud, and this two interior ring links to each other with sun gear shaft with the axle fluted disc respectively.

Described one-way drive mechanism can also be the star-wheel roller-type overrunning clutch that is furnished with two star-wheels in the outer shroud, and this two star-wheel links to each other with sun gear shaft with the axle fluted disc respectively.

The reciprocating type speedup driver train of described bicycle is characterized in that: the motion speed increasing mechanism is one-level, two or three grades of NGW type planet speed increasing mechanisms.

Described motion speed increasing mechanism can also be NW type, NN type or WW type planet speed increasing mechanism.

The reciprocating type speedup driver train of described bicycle is characterized in that: the motion output mechanism is fixing NGW type, NW type or a NN type planetary mechanism of planet wheel spindle.

The reciprocating type speedup driver train of described bicycle, it is characterized in that: wheel hub shaft type supporter is made up of wheel hub support sleeve and wheel hub supporting seat, wheel hub support sleeve and wheel hub supporting seat are by being threaded, be evenly equipped with opening on the wheel hub supporting seat, so that arrange the output planetary wheels of motion output mechanism, wheel hub shaft type supporter is at skin, and volume is bigger, and structural strength guarantees easily.

Described wheel hub shaft type supporter, can also form by left wheel hub supporting seat, right wheel hub supporting seat and wheel hub support sleeve, left wheel hub supporting seat, right wheel hub supporting seat are connected with minus thread by dextrorotation respectively with the wheel hub support sleeve, have opening on the right wheel hub supporting seat.

Because reciprocating mechanism, one-way drive mechanism and motion output mechanism have only one tunnel drive path, the space of reserving for the motion speed increasing mechanism, arrangement of mechanism is convenient, the speed increasing mechanism type selecting is flexible, and the reciprocating type speedup driver train of the bicycle of producing is practical.

Described crank is the bicycle and man power pedal device, and two cranks are captiveed joint with sun gear shaft with the axle fluted disc of reciprocating mechanism respectively.

Described wheel hub is the connection and the support unit of cycle wheel, and bicycle rim is connected with wheel hub by spoke.

The reciprocating type speedup driving mechanism structure of bicycle of the present utility model compactness, arrangement of mechanism make things convenient for, driving efficiency is high.

Description of drawings

Fig. 1 is the profile scheme drawing that the utility model embodiment is contained in the reciprocating type speedup driver train of bicycle on the bicycle vehicle carriage.

Fig. 2 is the profile scheme drawing of the utility model embodiment.

Fig. 3 is the assembly relation scheme drawing of the utility model embodiment.

Fig. 4 is the structural representation of the utility model embodiment.

Fig. 5 is the A-A cutaway view of Fig. 4.

Fig. 6 is the B-B cutaway view of Fig. 4.

Fig. 7 is the C-C cutaway view of Fig. 4.

Fig. 8 is the D-D cutaway view of Fig. 4.

Fig. 9 is the E-E cutaway view of Fig. 4.

Figure 10 is the three-dimensional cross-sectional schematic of assembling of the another kind of motion output mechanism of embodiment.

Figure 11 is the three-dimensional cross-sectional schematic of the assembling of one-level motion speed increasing mechanism.

Figure 12 is the three-dimensional cross-sectional schematic of the assembling of three grades of motion speed increasing mechanisms.

Figure 13 is the three-dimensional cross-sectional schematic of assembling of the another kind of one-way drive mechanism of embodiment.

Figure 14 is the three-dimensional assembling of the another kind of reciprocating mechanism separation type scheme drawing of embodiment.

Figure 15 is a structure cutaway view after the assembling of Figure 14.

Figure 16 is the F-F cutaway view of Figure 15.

Figure 17 is the three-dimensional assembling of the another kind of reciprocating mechanism separation type scheme drawing of embodiment.

Figure 18 is a structure cutaway view after the assembling of Figure 17.

Figure 19 is the G-G cutaway view of Figure 18.

Figure 20 is the H-H cutaway view of Figure 18.

Figure 21 is the another kind of wheel hub supporter of embodiment and the three-dimensional assembling of the separation type scheme drawing of motion output mechanism.

Figure 22 is a structure cutaway view after the assembling of Figure 21.

The specific embodiment

The explanation of Fig. 3 mark: seal cap 1, nut 2, semi-round key 3, crank 4, pressure cap 5 supports seal cover cap 6, plain bearing I 7, axle fluted disc 8, plain bearing V 9, oppositely the compound planetary wheel 14, plain bearing IV 15, sun gear shaft 16, plain bearing VI 17, wheel hub support sleeve 18, plain bearing III 19, wheel hub rolling body 20, wheel hub 21, ratchet spring 22, ratchet steel ball 23, ratchet 24, detent pin 25, spacing pawl disk 26, connecting key 27, position adjustable ring 28, antifriction-bearing box I 29, single direction ratchet dish 30, one-level speedup planet wheel spindle 31, one-level speedup satellite gear 32, outer locating ring I 33, interior locating ring I 34, centre tooth wheel disc 35, secondary speedup satellite gear rolling body 36, secondary speedup planet wheel spindle 37, secondary speedup satellite gear 38, output gear wheel disc 39, outer locating ring II 40, antifriction-bearing box II 41, interior locating ring II 42, output planetary wheel shaft 43, output planetary wheel 44, spacing ring I 45, antifriction-bearing box III 46, spacing ring II 47, roller bearing end cap 48, roller bearing end cap screw 49, wheel hub supporting seat 50, plain bearing II 51.

The explanation of Fig. 4 mark: wheel hub shaft type supporter 10, reciprocating mechanism 11, one-way drive mechanism 12, motion speed increasing mechanism 13, motion output mechanism 52.

The explanation of Figure 12 mark: 61, three grades of speedup planet wheel spindles 62 of three grades of speedup satellite gears.

The explanation of Figure 14 mark: a fluted disc 8, reverse bevel gear shaft 68, oppositely the finishing bevel gear cuter cover 69, reverse finishing bevel gear cuter 70, reverse bevel gear shaft spacing ring 71, sun gear shaft 16, plain bearing VI 73.

The explanation of Figure 17 mark: axle fluted disc 8, left plain bearing 75, right plain bearing 76, oppositely bevel gear shaft stop screw 77, reverse bevel gear shaft 68, oppositely the finishing bevel gear cuter cover 69, spacing watt 79 of sun gear shaft, sun gear shaft 16, wheel hub support sleeve 18, spacing watt of tightening screw 82 of sun gear shaft.

The explanation of Figure 21 mark: left wheel hub supporting seat 83, wheel hub support sleeve II 84, output pawl disk 85, detent pin III 86, ratchet III 87, antifriction-bearing box IV 88, antifriction-bearing box IV inner ring spacing ring 89, antifriction-bearing box IV outer ring spacing ring 90, antifriction-bearing box A91, antifriction-bearing box B92, output planetary wheel shaft II 93, output planetary wheel III 94, antifriction-bearing box V 95, antifriction-bearing box V outer ring spacing ring 96, position adjustable ring II 97, right wheel hub supporting seat 98, the compound dish 99 of output ratchet gear.

Referring to Fig. 4, the embodiment of the reciprocating type speedup driver train of the utility model bicycle comprises crank 4, wheel hub 21, wheel hub shaft type supporter 10, reciprocating mechanism 11, one-way drive mechanism 12, motion speed increasing mechanism 13 and motion output mechanism 52, reciprocating mechanism 11, one-way drive mechanism 12, motion speed increasing mechanism 13 and motion output mechanism 52 are installed in the wheel hub shaft type supporter 10, wheel hub 21 is installed on the wheel hub shaft type supporter 10, be rolling friction between wheel hub 21 and the wheel hub shaft type supporter 10, the mouth of motion output mechanism 52 is connected with wheel hub 21 by output planetary wheel 44, two cranks 4 are captiveed joint with sun gear shaft 16 with the axle fluted disc 8 of reciprocating mechanism 11 respectively, the axle fluted disc 8 of reciprocating mechanism 11 is connected with one-way drive mechanism 12 respectively with the spacing pawl disk 26 on being connected in sun gear shaft 16, one-way drive mechanism 12 is installed between reciprocating mechanism 11 and the motion speed increasing mechanism 13, and the input end of motion output mechanism 52 is connected with motion speed increasing mechanism 13.

Because reciprocating mechanism 11, one-way drive mechanism 12, motion speed increasing mechanism 13 and motion output mechanism 52 have only one tunnel drive path, rather than about the identical structure of two covers can only finish the partial function of repetition, compact conformation, arrangement convenience is flexible, and the driving efficiency height.

Reciprocating mechanism 11 is made up of axle fluted disc 8, sun gear shaft 16 and reverse compound planetary wheel 14, between axle fluted disc 8 and the sun gear shaft 16 plain bearing IV 15 is installed, and it is R that an axle fluted disc 8 has radius _InInner gear structure, it is R that sun gear shaft 16 has radius _OutwardThe external gear structure, the fixing reverse compound planetary wheel of axle is that radius is respectively R _{Outside the star}And R _{In the star}The combination of small one and large one two gear, the oppositely inner gear engagement of compound planetary wheel big gear wheel part and axle fluted disc, oppositely relational expression: R is satisfied in the external gear engagement of compound planetary wheel miniature gears part and sun gear shaft simultaneously _Outward+ R _{Outside the star}+ R _{In the star}=R _InWith R _Outward/ R _{Outside the star}=R _In/ R _{In the star}, a more than cover compound planetary wheel adopts symmetric arrangement according to structure and requirement of strength, because reciprocating mechanism adopts the compound planetary wheel construction, and the driving efficiency height, part is few, and is simple in structure.

One-way drive mechanism 12 is the ratchet and pawl arrangement of two interior ring structures, form by ratchet spring 22, ratchet steel ball 23, detent pin 25, ratchet 24 and single direction ratchet dish 30,

ratchet

24 and 30 engagements of single direction ratchet dish, ratchet 24 is installed on the axle fluted disc 8 and spacing pawl disk 26 of reciprocating mechanism 11 by detent pin 25, ratchet spring 22 contacts ratchet steel ball 23 jack-up with ratchet 24, make

ratchet

24 and 30 engagements of single direction ratchet dish, thereby the axle fluted disc 8 of reciprocating mechanism 11 and the crank motion of sun gear shaft 16 are become unidirectional rotatablely moving.

Motion speed increasing mechanism 13 is one-level, two-stage or three grades of NGW type planet boost installations, because reciprocating mechanism 11, one-way drive mechanism 12 and motion output mechanism 52 have only one tunnel drive path, for motion speed increasing mechanism 13 has been reserved arrangement space, according to the over-speed gear ratio needs, be convenient to arrange tandem NGW type planet boost installation level to carry out speedup, over-speed gear ratio is selected flexibly, and the main parts size structure is identical, and is economical and practical.

Motion output mechanism 52 is the fixing NGW type planet device of planet wheel spindle, main by the output gear structure on the output gear wheel disc 39, internally toothed annulus structure on output planetary wheel 44 and the wheel hub 21 is formed, and rotatablely moving on the output gear wheel disc 39 taken turns 44 drive hubs 21 by output planetary and rotated.

Wheel hub shaft type supporter 10 is made up of wheel hub support sleeve 18 and wheel hub supporting seat 50, wheel hub support sleeve 18 and wheel hub supporting seat 50 are by being threaded, have opening on the wheel hub supporting seat 50, the effect of opening is to be used for making passing through with wheel hub 21 bonded assembly output planetaries wheel 44 of motion output mechanism 52, wheel hub shaft type supporter 10 is the container and the sealing element of the reciprocating type speedup driver train of bicycle, be again the main support body of the reciprocating type speedup driver train of bicycle, volume is good than macrostructure intensity.

Referring to Fig. 3, the wheel hub shaft type supporter 10 that the reciprocating type speedup driver train of the utility model bicycle embodiment comprises wheel hub 21 and is made of by spiral marking connection wheel hub support sleeve 18 and wheel hub supporting seat 50, on wheel hub support sleeve 18 and the wheel hub supporting seat 50 an outer rolling circular groove is arranged respectively, match with interior rolling circular groove on wheel hub 21 two ends and to constitute the ring raceway at two ends, wheel hub 21 left and right sides, wheel hub rolling body 20 rolls in two raceways, and supporting wheel hub 21 moves in a circle around the axis of the wheel hub shaft type supporter 10 that wheel hub support sleeve 18 and wheel hub supporting seat 50 constitute.Wheel hub support sleeve 18 outside ends have symmetrical support groove, there is the ring support groove wheel hub supporting seat 50 outsides, wheel hub support sleeve 18 can connect with cycle rack by the support groove with the wheel hub shaft type supporter 10 that wheel hub supporting seat 50 constitutes, wherein, symmetrical support groove assurance wheel hub support sleeve 18 on the wheel hub support sleeve 18 is fixed with the cycle rack relative angular position, ring support groove on the wheel hub supporting seat 50 allows wheel hub supporting seat 50 and cycle rack angle unfixing, be convenient to regulate the matching thread on wheel hub support sleeve 18 and the wheel hub supporting seat 50, to reach the side-to-side movement gap that the wheel hub rolling body 20 that is adjusted in the raceway cooperates with raceway.Diaphragm structure in the middle of the wheel hub support sleeve 18 is separated into small one and large one two circular cylindrical cavities to wheel hub support sleeve 18, the mechanism 11 that moves reciprocatingly is installed in its little cavity, in its big cavity from dividing plate outwards according to outer inferior be equipped with one-way drive mechanism 12, motion speed increasing mechanism 13, with motion speed increasing mechanism 13 motion output mechanisms 52 adjacent, that be contained in the wheel hub supporting seat 50 process motion speed increasing mechanism 13 rotatablely moving of output are passed to wheel hub 21, drive hub 21 moves in a circle.

Among the embodiment, be contained in that reciprocating mechanism 11 in the wheel hub support sleeve 18 little cavitys mainly contains external tooth center gear that the gear structure on the sun gear shaft 16 constitutes, oppositely compound planetary is taken turns 14 group, spool fluted discs, 8 formations, external tooth center gear on the sun gear shaft 16, oppositely compound planetary is taken turns on 14 group, the spool fluted discs central wheel of internal teeth composition reversing-gear that 8 internally toothed annulus structure constitutes, take turns 14 groups axle fixedly the time when reverse compound planetary, the external tooth center gear of reversing-gear concerns with the backswing of central wheel of internal teeth formation.Oppositely compound planetary wheel 14 be coaxial by two but half gear of different radii in conjunction with constituting, referring to Fig. 5, wherein, with external tooth center gear ingear half tooth radius of reversing-gear be R _{Outside the star}, with central wheel of internal teeth ingear half tooth radius of reversing-gear be R _{In the star}, the radius of the central wheel of internal teeth of reversing-gear, external tooth center gear is respectively R _InAnd R _Outward, R _Outward=12mm, R _{Outside the star}=4 mm, R _{In the star}=8 mm, R _In=24 mm are R then _Outward+ R _{Outside the star}+ R _{In the star}=12 mm+4 mm+8 mm=24 mm, R _Outward/ R _{Outside the star}=12mm/4 mm=3, R _In/ R _{In the star}=24 mm/8 mm=3,

So R _Outward+ R _{Outside the star}+ R _{In the star}=R _InR _Outward/ R _{Outside the star}=R _In/ R _{In the star}

Getting module of gear is 1, then the number of teeth of the external tooth center gear of reversing-gear, central wheel of internal teeth is respectively 24 and 48, oppositely the number of teeth of two and half gears of compound planetary wheel 14 is respectively 4 and 8, behind rounding, be adjusted into 3 and 6, the axis of fixing reverse compound planetary wheel 14, inside and outside center gear pendulum angle all are defined as 60 degree, and above-mentioned two relational expressions have guaranteed that the external tooth center gear of reversing-gear equates with central wheel of internal teeth motion cireular frequency, but direction is opposite, finishes oscillating traverse motion.Oppositely axle one end of compound planetary wheel 14 is supported in the circular hole on wheel hub support sleeve 18 dividing plates by plain bearing VI 17, the circular hole that the other end passes a fluted disc 8 bottoms is supported in the circular hole that supports on the seal cover cap 6 by plain bearing V 9, here get aforesaid reverse compound planetary wheel 14 of 4 covers and Holder Fasteners, consider and support seal cover cap 6 and axle fluted disc 8 structural strengths, the reverse compound planetary of 4 covers is taken turns 14 groups and is taked close in twos, symmetric arrangement form.Be evenly equipped with several arc breach around the circular support seal cover cap 6, this arc breach cooperates with the arc on wheel hub support sleeve 18 cavitys is protruding, the circular movement of seal cover cap 6 around its axis supported in restriction, support pressure cap 5 is arranged outside the seal cover cap 6, female thread structure in external thread structure on the pressure cap 5 and wheel hub support sleeve 18 cavitys cooperates, the axial motion of restriction support seal cover cap 6.Axle fluted disc 8 is circular groove shape, the bottom land symmetry has two arcuate sockets, respectively there is the axle activity of a pair of reverse compound planetary wheel 14 to pass, a limiting stopper is respectively stretched out in the two arc grooves on supporting seal cover cap 6 symmetrically in axle fluted disc 8 bottoms, and the unidirectional pivot angle scope of this two limiting stoppers restrictive axes fluted disc 8 is 60 degree.Axle fluted disc 8 bottom land outsides along central axis to be projected with major axis, there is the minor axis projection bottom land inside along central axis, the minor axis projection is supported on sun gear shaft 16 by plain bearing IV 15 to be had in the circular hole of gear structure end, major axis is supported in the circular hole that supports seal cover cap 6 centers by plain bearing I 7, and pass and support seal cover cap 6, its end conical surface axle cooperates with taper hole on the crank 4 and connects by semi-round key 3, its shaft end screw thread and nut 2 connect firmly, and outermost seals with seal cap 1.There are internally toothed annulus structure and reverse compound planetary to take turns 14 groups of engagements around the axle fluted disc 8 circular groove inwalls, a pair of projection is stretched out along its axis direction symmetry in its flute profile edge, this passes a circular hole on wheel hub support sleeve 18 dividing plates respectively versatilely to projection, can do reciprocally swinging, the projection top respectively has ratchet 24 and detent pin 25, ratchet spring 22, ratchet steel ball 23 to constitute ratchet swinging structure I.The external tooth center gear structure of sun gear shaft 16 is taken turns 14 groups of engagements with reverse compound planetary, its axis body is supported in the axis hole of wheel hub support sleeve 18 dividing plate centers by plain bearing III 19, and extend in the big cavity of wheel hub support sleeve 18, connect with sun gear shaft 16 by the convex shoulder on connecting key 27 and the sun gear shaft 16 near the discoid spacing pawl disk 26 at dividing plate place in the wheel hub support sleeve 18 big cavitys and locate, spacing pawl disk 26 opposite sides by position adjustable ring 28 adjacent with antifriction-bearing box I 29, antifriction-bearing box I 29 opposite sides by interior locating ring I 34 at sun gear shaft 16 upper limits.Single direction ratchet dish 30 is supported on the sun gear shaft 16 and by outer locating ring I 33 by antifriction-bearing box I 29 and connects firmly with antifriction-bearing box I 29, spacing pawl disk 26 is becoming 90 degree places, orientation to extend radially out a pair of ratchet piece with axle fluted disc 8 projections, the ratchet swinging structure II that has ratchet 24 and detent pin 25, ratchet spring 22, ratchet steel ball 23 to constitute on it.Stretch out a limiting stopper in each two arc groove on wheel hub support sleeve 18 dividing plates of two ratchet pieces on the spacing pawl disk 26, the unidirectional pivot angle scope of this two limiting stoppers restriction sun gear shaft 16 is 60 degree, referring to Fig. 6.A pair of ratchet swinging structure II on the spacing pawl disk 26 becomes the plane to be arranged vertically with a pair of ratchet swinging structure I of axle on the fluted disc 8, the single direction ratchet dish 30 that a pair of ratchet swinging structure I, a pair of ratchet swinging structure II and inner ring have ratchet has constituted the one-way drive mechanism 12 that reciprocally swinging is converted to unidirectional rotary motion jointly, referring to Fig. 7.Single direction ratchet dish 30 is simultaneously again as one-level speedup pinion carrier, be evenly equipped with 4 pairs of one-level speedup planet wheel spindles 31 and one-level speedup satellite gear 32 on it, the gear structure that one-level speedup satellite gear 32, centre tooth wheel disc 35 central axis connect firmly has been formed one-level speedup planetary wheel train as the part internally toothed annulus that plays the central wheel of internal teeth effect on one-level speedup external tooth center gear and the wheel hub support sleeve 18.There is through hole at centre tooth wheel disc 35 central axis places so that sun gear shaft 16 passes through, centre tooth wheel disc 35 is again a secondary speedup pinion carrier simultaneously, be evenly equipped with 4 secondary speedup planet wheel spindles 37 on it, secondary speedup satellite gear 38 is arranged on the secondary speedup planet wheel spindle 37, interior rolling circular groove looping raceway in outer rolling circular groove on the secondary speedup planet wheel spindle 37 and secondary speedup satellite gear 38 axis holes, in secondary speedup satellite gear rolling body 36 is arranged, referring to Fig. 8, secondary speedup satellite gear 38, secondary speedup external tooth center gear structure and the part internally toothed annulus that plays the central wheel of internal teeth effect on the wheel hub support sleeve 18 on the output gear wheel disc 39 have been formed secondary speedup planetary wheel train, one-level, secondary speedup planetary wheel train has been formed motion speed increasing mechanism 13.On the output gear wheel disc 39 except secondary speedup external tooth center gear structure is arranged, export external tooth center gear structure, axial center hole and dish end circular groove on it in addition, output gear wheel disc 39 is supported in the bearing hole on the wheel hub supporting seat 50 by antifriction-bearing box II 41, circular groove on it cooperates with interior locating ring II 42 and is fixed on the antifriction-bearing box II 41, and antifriction-bearing box II 41 is limited on the wheel hub supporting seat 50 by outer locating ring II 40.Output planetary wheel 44 is by antifriction-bearing box III 46, spacing ring I 45, spacing ring II 47, roller bearing end cap 48, roller bearing end cap screw 49 is spacing and be supported on by screw thread and be fixed on the output planetary wheel shaft 43 on the wheel hub supporting seat 50, constituted the output planetary wheel construction, output external tooth center gear structure periphery on the output gear wheel disc 39 is evenly equipped with 4 such output planetary wheel constructions, the output planetary wheel construction, output external tooth center gear structure on the output gear wheel disc 39 and the internally toothed annulus structure that plays the central wheel of internal teeth effect on the wheel hub 21 have constituted motion output mechanism 52, referring to Fig. 9.After sun gear shaft 16 passes through antifriction-bearing box I 29, interior locating ring I 34, pass centre tooth wheel disc 35, output gear wheel disc 39 successively, and be supported on the wheel hub supporting seat 50 by plain bearing II 51, its end conical surface axle cooperates with taper hole on the crank 4 and connects by semi-round key 3, shaft end screw thread and nut 2 connect firmly, and outermost seals with seal cap 1.

Referring to Figure 10, in another embodiment, pinion structure engagement on output external tooth center gear structure on the output gear wheel disc 39 of motion output mechanism 52 and the output planetary wheel 44, big gear wheel structure on the output planetary wheel 44 and the central wheel of internal teeth structure engages on the wheel hub 21.

Referring to Figure 11, motion speed increasing mechanism 13 be the primary planet carrier effect single direction ratchet dish 30 and on one-level speedup planet wheel spindle 31, one-level speedup satellite gear 32 and wheel hub support sleeve 18 on the internally toothed annulus that plays the central wheel of internal teeth effect, the external toothing structure that plays the effect of external tooth center gear on the output gear wheel disc 39 directly mesh, motion speed increasing mechanism 13 is one-level speedup planetary wheel trains.

Referring to Figure 12, motion speed increasing mechanism 13 is three grades of speedup planetary wheel trains, single direction ratchet dish 30, one-level speedup planet wheel spindle 31, the gear structure that plays the effect of external tooth center gear on one-level speedup satellite gear 32 and the centre tooth wheel disc 35, the one-level speedup planetary wheel train that the part internally toothed annulus structure that plays the central wheel of internal teeth effect on the wheel hub support sleeve 18 is formed, centre tooth wheel disc 35, secondary speedup planet wheel spindle 37, the gear structure that plays the effect of external tooth center gear on secondary speedup satellite gear 38 and the centre tooth wheel disc 35, the secondary speedup planetary wheel train that the part internally toothed annulus structure that plays the central wheel of internal teeth effect on the wheel hub support sleeve 18 is formed, centre tooth wheel disc 35, three grades of speedup planet wheel spindles 62, the gear structure that plays the effect of external tooth center gear on three grades of speedup satellite gears 61 and the output gear wheel disc 39, three grades of speedup planetary wheel trains that the part internally toothed annulus structure that plays the central wheel of internal teeth effect on the wheel hub support sleeve 18 is formed, one, two, three grades of speedup satellite gear train component movement speed increasing mechanisms 13.

Referring to Figure 13, one-way drive mechanism 12 can also be a pair of ratchet swinging structure on the fluted disc 8 and a pair of ratchet swinging structure on the spacing pawl disk 26 side by side, not in same plane, the single direction ratchet dish 30 that these two pairs of ratchet swinging structures and inner ring have ratchet has constituted the mechanism that reciprocally swinging is converted to unidirectional rotary motion jointly.

Referring to Figure 14,15 and 16, reciprocating mechanism 11 can also be to be made of with reverse 70 groups of engagements of finishing bevel gear cuter the awl toothing on the axle fluted disc 8, awl toothing on the sun gear shaft 16, oppositely finishing bevel gear cuter 70 is supported and fixed on the wheel hub support sleeve 18 by reverse bevel gear shaft 68, reverse finishing bevel gear cuter cover 69, reverse bevel gear

shaft spacing ring

71,4 reverse finishing bevel gear cuters 70 are in twos near symmetric arrangement, and the cylindrical projection structure of axle fluted disc 8 central axis is connected by plain bearing VI 73 with the circular groove structure of sun gear shaft 16 central axis.

Referring to Figure 17,18,19 and 20, reciprocating mechanism 11, can also be by the awl toothing on the axle fluted disc 8,70 groups of engagements of awl toothing on the sun gear shaft 16 and reverse finishing bevel gear cuter constitute, oppositely finishing bevel gear cuter 70 is by reverse bevel gear shaft 68, oppositely the finishing bevel gear cuter cover 69, oppositely bevel gear shaft stop screw 77 is supported and fixed on the wheel hub support sleeve 18,4 reverse finishing bevel gear cuters 70 are in twos near symmetric arrangement, the top of axle fluted disc 8 is equipped with on a pair of bulge-structure of ratchet and has through hole so that the awl toothing on the sun gear shaft 16 partly passes through, guaranteeing between the finishing bevel gear cuter under the complete ingear condition to increase pendulum angle, the cylindrical projection structure of the central axis on axle fluted disc 8 and the sun gear shaft 16 is supported on the wheel hub support sleeve 18 with right plain bearing 76 by left plain bearing 75 respectively, it is spacing that two cylindrical projection on the sun gear shaft 16 are carried out pendulum angle by two symmetrical arc grooves on the wheel hub support sleeve 18, by being fixed on spacing watt 79 axial limiting of a pair of sun gear shaft on wheel hub support sleeve 18 symmetrical grooves, spacing watt 79 of spacing watt of tightening screw of sun gear shaft 82 permanent center gear wheel shaft.

Referring to Figure 21 and 22, wheel hub shaft type supporter 10 also can be made up of left wheel hub supporting seat 83, right wheel hub supporting seat 98 and wheel hub support sleeve II 84, left wheel hub supporting seat 83, right wheel hub supporting seat 98 and wheel hub support sleeve II 84 are connected with minus thread by dextrorotation respectively, have opening on the right wheel hub supporting seat, the effect of opening is to be used for making motion output mechanism and wheel hub bonded assembly gear to pass through.

Referring to Figure 21 and 22, described motion output mechanism 52, can also be that output pawl disk 85 drives compound dish 99 rotations of output ratchet gear by detent pin III 86 on it and ratchet III 87, via antifriction-bearing box A91, antifriction-bearing box B292, output planetary wheel shaft II 93, the planet circular system that output planetary wheel III 94 is formed is transferred to wheel hub 21, antifriction-bearing box IV 88, antifriction-bearing box IV inner ring spacing ring 89, antifriction-bearing box IV outer ring spacing ring 90 will be exported pawl disk 85 and connect firmly on right wheel hub supporting seat 98, antifriction-bearing box V 95, antifriction-bearing box V outer ring spacing ring 96, position adjustable ring II 97 will be exported the compound dish 99 of ratchet gear and connect firmly on right wheel hub supporting seat 98.

In conjunction with the accompanying drawings the utility model working process is specifically described.

By the central wheel of internal teeth on the axle fluted disc 8, the special meshing relation of external tooth center gear on the sun gear shaft 16 and reverse compound planetary wheel 14, axle fluted disc 8 constitutes reverse constant speed swing relation with sun gear shaft 16, when crank 4 is done the cw circle swing downwards, drive axle fluted disc 8 and do same cw circle swing, sun gear shaft 16 is done constant speed conter clockwise circle swing, the crank 4 that drives another side is done upwards conter clockwise circle swing, and ratchet 24 conter clockwises that drive the ratchet swinging structure on the spacing pawl disk 26 a pair of ratchet pieces by connecting key 27 slip over the ratchet on the single direction ratchet dish 30 simultaneously; When crank 4 is done same cw circle swing to a lower swing drive axle fluted disc 8, ratchet swinging structure on the axle fluted disc 8 a pair of projections drives single direction ratchet dish 30 and does the cw circular movement, when axle fluted disc 8 cws turn over 60 when spending, a pair of limiting stopper on it is spacing in supporting 6 liang of arc grooves of seal cover cap, and it is not spacing to do in the two arc grooves of a pair of limiting stopper on wheel hub support sleeve 18 dividing plates on the spacing pawl disk 26 of conter clockwise circle swing this moment.When the crank 4 of another side is done the cw circle swing downwards, sun gear shaft 16 is done same cw circle swing, axle fluted disc 8 is done constant speed conter clockwise circle swing, ratchet 24 conter clockwises that drive the ratchet swinging structure on the axle fluted disc 8 a pair of projections slip over the ratchet of single direction ratchet dish 30, drive crank 4 simultaneously and do upwards conter clockwise circle swing; When the crank 4 of another side is done same cw circle swing to lower swing drive sun gear shaft 16, sun gear shaft 16 drives spacing pawl disk 26 by connecting key 27 and does same cw circle swing, ratchet swinging structure on the spacing pawl disk 26 a pair of ratchet pieces drives single direction ratchet dish 30 and does the cw circular movement, when spacing pawl disk 26 cws turn over 60 when spending, spacing in the two arc grooves of a pair of limiting stopper on it on wheel hub support sleeve 18 dividing plates, a pair of limiting stopper of axle on the fluted disc 8 of doing the conter clockwise circle swing is not spacing this moment in supporting 6 liang of arc grooves of seal cover cap.Single direction ratchet dish 30 is as the one-level speedup pinion carrier of the one-level speedup planetary wheel train of motion input, the external tooth center gear that drives one-level speedup planetary wheel train is done the speedup motion, and this external tooth center gear is done same cw speedup motion as the part drive centre tooth wheel disc 35 of centre tooth wheel disc 35; Centre tooth wheel disc 35 is again simultaneously the secondary speedup pinion carrier as the secondary speedup planetary wheel train of motion input, the external tooth center gear that drives secondary speedup planetary wheel train is done the speedup motion, and this external tooth center gear is done same cw speedup motion as the part drive output gear wheel disc 39 of output gear wheel disc 39; The external tooth center gear of motion output mechanism is the part of output gear wheel disc 39, internally toothed annulus structure on the wheel hub 21 plays the central wheel of internal teeth effect of motion output mechanism, 44 on output planetary wheel is fixing, output gear wheel disc 39 is converted to the deceleration conter clockwise circular movement of the central wheel of internal teeth structure on the wheel hub 21 to the cw circular movement of speedup by its external tooth center gear structure, drives wheel hub 21 and does same conter clockwise circular movement.After the speedup of the cw circular movement of single direction ratchet dish 30 through I and II speedup planetary wheel gear mechanism, form the cw circular movement of big speedup, after the little deceleration of conter clockwise by the motion output mechanism, finally export the conter clockwise circular movement of certain speedup at wheel hub 21.

The reciprocating type speedup driver train of bicycle of the present utility model, the reciprocating type speedup driving mechanism structure of this bicycle compactness, arrangement of mechanism make things convenient for, driving efficiency is high, promoting the use of it has positive meaning to the safety performance that improves bicycle, the portability of riding.

Claims

1. the reciprocating type speedup driver train of bicycle, comprise crank, wheel hub, wheel hub shaft type supporter, reciprocating mechanism, one-way drive mechanism, motion speed increasing mechanism and motion output mechanism, reciprocating mechanism, one-way drive mechanism, motion speed increasing mechanism and motion output mechanism are installed in the wheel hub shaft type supporter, wheel hub is installed on the wheel hub shaft type supporter, be rolling friction between wheel hub and the wheel hub shaft type supporter, the mouth of motion output mechanism is connected with wheel hub by gear, it is characterized in that: two cranks are captiveed joint with sun gear shaft with the axle fluted disc of reciprocating mechanism respectively, the axle fluted disc of reciprocating mechanism is connected with one-way drive mechanism respectively with sun gear shaft, one-way drive mechanism is installed between reciprocating mechanism and the motion speed increasing mechanism, and the input end of motion output mechanism is connected with the motion speed increasing mechanism; Reciprocating mechanism is made up of axle fluted disc, sun gear shaft and reverse compound planetary wheel, between axle fluted disc and the sun gear shaft plain bearing is installed, and an axle fluted disc has the internally toothed annulus structure, and the internally toothed annulus radius is R _In, sun gear shaft has the external gear structure, and the external gear radius is R _Outward, the fixing reverse compound planetary wheel of axle is the combination of small one and large one gear, radius is respectively R _{Outside the star}And R _{In the star}, the oppositely internally toothed annulus engagement of compound planetary wheel big gear wheel part and axle fluted disc, the oppositely external gear engagement of compound planetary wheel miniature gears part and sun gear shaft, and satisfy relational expression: R _Outward+ R _{Outside the star}+ R _{In the star}=R _InWith R _Outward/ R _{Outside the star}=R _In/ R _{In the star}

2. the reciprocating type speedup driver train of bicycle according to claim 1, it is characterized in that: one-way drive mechanism is the inner gearing type ratchet-ratchet overriding clutch that is furnished with two interior ring structures in the ratchet, and this two interior ring links to each other with sun gear shaft with the axle fluted disc respectively.

3. the reciprocating type speedup driver train of bicycle according to claim 1 is characterized in that: one-way drive mechanism is the Wedge type over running clutch that is furnished with ring in two in the outer shroud, and this two interior ring links to each other with sun gear shaft with the axle fluted disc respectively.

4. the reciprocating type speedup driver train of bicycle according to claim 1 is characterized in that: one-way drive mechanism is the star-wheel roller-type overrunning clutch that is furnished with two star-wheels in the outer shroud, and this two star-wheel links to each other with sun gear shaft with the axle fluted disc respectively.

5. the reciprocating type speedup driver train of bicycle according to claim 1 is characterized in that: the motion speed increasing mechanism is I and II or three grades of NGW type planet speed increasing mechanisms.

6. the reciprocating type speedup driver train of bicycle according to claim 1 is characterized in that: the motion speed increasing mechanism also can be NW type, NN type or WW type planet speed increasing mechanism.

7. the reciprocating type speedup driver train of bicycle according to claim 1 is characterized in that: the motion output mechanism is fixing NGW type, NW type or a NN type planetary mechanism of planet wheel spindle.

8. the reciprocating type speedup driver train of bicycle according to claim 1, it is characterized in that: wheel hub shaft type supporter is made up of wheel hub support sleeve and wheel hub supporting seat, wheel hub support sleeve and wheel hub supporting seat are by being threaded, be evenly equipped with opening on the wheel hub supporting seat, so that arrange the output planetary wheels of motion output mechanism.

9. the reciprocating type speedup driver train of bicycle according to claim 1, it is characterized in that: wheel hub shaft type supporter also can be made up of left wheel hub supporting seat, right wheel hub supporting seat and wheel hub support sleeve, left wheel hub supporting seat, right wheel hub supporting seat are connected with minus thread by dextrorotation respectively with the wheel hub support sleeve, have opening on the right wheel hub supporting seat.

10. the reciprocating type speedup driver train of bicycle according to claim 1 is characterized in that: reciprocating mechanism is made up of with the reverse bevel gear set engagement that axle is fixed on the support sleeve the awl toothing on the axle fluted disc, awl toothing on the sun gear shaft.