CN202449166U - Tricycle speed changing and shifting device and back and forth pedaling tricycle with same - Google Patents
Tricycle speed changing and shifting device and back and forth pedaling tricycle with same Download PDFInfo
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- CN202449166U CN202449166U CN2012200553218U CN201220055321U CN202449166U CN 202449166 U CN202449166 U CN 202449166U CN 2012200553218 U CN2012200553218 U CN 2012200553218U CN 201220055321 U CN201220055321 U CN 201220055321U CN 202449166 U CN202449166 U CN 202449166U
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Abstract
The utility model relates to a tricycle speed changing and shifting device and a back and forth pedaling tricycle with the same. The tricycle speed changing and shifting device and the back and forth pedaling tricycle thereof comprise a tricycle frame, a reclining seat, pedals and the tricycle speed changing and shifting device. The tricycle speed changing and shifting device comprises a driving shaft and a driven shaft which are mutually parallel and fixed on the tricycle frame through a bearing, a first chain wheel, a second chain wheel and a plurality of driving gears are sleeved on the driving shaft, the first chain and the second chain wheel are mounted on the driving shaft through forward clutches respectively, the plurality of driving gears are mounted on the driving shaft through reverse clutches respectively, a plurality of driven gears are arranged on the driven shaft, and the plurality of driven gears and the plurality of driving gears are sequentially connected correspondingly to form a multiple speed ratio gear set. The tricycle speed changing and shifting device and the back and forth pedaling tricycle with the same have the advantages that the structure is simple, the operation is convenient, one-step shifting is achieved, the back and forth pedaling is labor saving and efficient, and the stability and the comfort of the tricycle are improved by the aid of the tricycle and the reclining seat.
Description
Technical field
The utility model belongs to technical field of bicycles; Be particularly related to a kind of bicycle shift gearshift and front and back thereof and back and forth scrunch tricycle; Particularly, the utility model relate to a kind of have the bicycle drive of manual directly gear shift function and have this device back and forth scrunch bicycle.
Background technology
Mostly the speed-changing mechanism of variable speed bicycle is chain-type multi-gear disk servo-actuated gearshift, engage a gear after the conventional chains driving bicycle wants engage a gear and just must go earlier.For example, we find that chain is not on suitable gear when preparing by bike; We push on the predetermined gear with regard to the knob of need will transferring the files; Scrunching of requiring great effort on inappropriate gear after pedal gets up cycle racing, chain could progressively forward on the predetermined gear then, and this kind structure can't be as automobile; Just can be before go with gear disposable accurately being transferred on the suitable position, brought inconvenience to the user.
In addition, to develop into today be structure, material, conveniently all arrived very ripe perfect stage for traditional bicycle.But often by bike people can realize standard bicycle a lot of weak points are arranged also.The one, the support zone and the car body area of contact of health are very little, and ride for a long time palm and buttocks have the sensation of numb pain; The 2nd, the center of gravity of bicycle is higher, has certain risk during sudden stop, and all inertia strength forward all can converge on the palm simultaneously, and the load of palm is strengthened; The 3rd, when riding people's health almost in vertical state, air resistance strengthens; The 4th, maximum just self body weight of the power that scrunches of bicycle will be left vehicle seat and can't apply bigger power because surpass self body weight buttocks.To these problems, over more than 100 year both at home and abroad always the someone design various recumbent bicycles, and receive liking of more people gradually.
But, brought the chain transmission mode of ordinary bicycle other problem when using on the recumbent bicycle again.Just present popular on the market lying type three wheel bicycle; First problem be when riding posture by vertically change into partly lie after; Be positioned at the pedal of bicycle forefront if still not too made things convenient for,, and make the vehicle body lengthening because the circumference stepping movement of two pin can take than large space for circumference just scrunches; When pin moved to the top of circumference, health almost was the posture that lies low, and is not easy to observe the place ahead road conditions simultaneously.In addition, actv. acting district only in the scope about 100 degree angles when circumference scrunches, and other 260 degree angle is invalid acting district, and mechanical efficiency is reduced, the easy fatigue of riding for a long time.It is light that second problem is that three-wheel vehicle does not resemble the cart, just seem very inconvenient when needing reversing running into, and particularly three-wheel vehicle is for shading wind and rain, dust or reduce air resistance and just more needed reverse gear when installing hood additional.
Summary of the invention
The purpose of the utility model is that a kind of bicycle shift gearshift of proposition and front and back thereof back and forth scrunch the tricycle technical scheme; This gearshift has manually directly gear shift function, and its bicycle is that the linear reciprocation that has this gearshift scrunches tricycle.
To achieve these goals, the technical scheme of the utility model is:
A kind of bicycle shift gearshift; Comprise imput shaft and with adhesion wheel bonded assembly driven shaft voluntarily; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack, wherein, on imput shaft, are with sprocket wheel and a plurality of driving gear that at least one is driven by chain; Said sprocket wheel is installed on the imput shaft through forward clutch; Said a plurality of driving gear is installed on the imput shaft through a plurality of reverse clutches, and said driven shaft is provided with a plurality of driven gears, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; The hole wall that said driven gear and driven shaft are nested is provided with groove; Said driven shaft is the hollow shaft that has axis hole; The axis of said driven shaft is provided with a long slot bore at least in the hole wall upper edge of said axis hole, and the length of long slot bore contains the groove on a plurality of said driven gear hole walls, is provided with shift carriage in the axis hole of said driven shaft; Shift carriage slides along the stressed front and back of axis hole; Said shift carriage is provided with the stressed slide block that at least one can elastic telescopic perpendicular to the driven shaft central axis, and stressed slide block is when shift carriage stretches out, and stressed slip front is passed the groove that long slot bore on the said driven shaft hole wall snaps in a said driven gear; The rear end of stressed slide block is retained in the shift carriage; Driving gear drives driven shaft through driven gear and stressed slide block and rotates, and said shift carriage is provided with rotational coupling mechanism, and rotational coupling mechanism connects a gearshift pull bar; Said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation, and said reverse clutch is to allow driving gear to surmount the overriding clutch that imput shaft is rotated.
A kind of bicycle shift gearshift; Comprise imput shaft and with bicycle adhesion wheel bonded assembly driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack, it is characterized in that, on imput shaft, are with sprocket wheel and a plurality of driving gear that at least one is driven by chain; Said sprocket wheel is installed on the imput shaft through forward clutch; Said driven shaft is provided with a plurality of driven gears, and said a plurality of driven gears are installed on the driven shaft through a plurality of reverse clutches, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; The hole wall that said driving gear and imput shaft are nested is provided with groove; Said imput shaft is the hollow shaft that has axis hole; The axis of said imput shaft is provided with a long slot bore at least in the hole wall upper edge of said axis hole, and the length of long slot bore contains the groove on a plurality of said driving gear hole walls, is provided with shift carriage in the axis hole of said imput shaft; Shift carriage slides along the stressed front and back of axis hole; Said shift carriage is provided with the stressed slide block that at least one can elastic telescopic perpendicular to the imput shaft central axis, and stressed slide block is when shift carriage stretches out, and stressed slip front is passed the groove that long slot bore on the said imput shaft hole wall snaps in a said driving gear; The rear end of stressed slide block is retained in the shift carriage; Driving gear drives driven shaft through stressed slide block and driven gear and rotates, and said shift carriage is provided with rotational coupling mechanism, and rotational coupling mechanism connects a gearshift pull bar; Said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation, and said reverse clutch is to allow driven shaft to surmount the overriding clutch that driven gear rotates.
A plurality of driven gears in the said multiple speed ratio gear group and the corresponding successively directly engagement of said a plurality of driving gears, a plurality of driven gears drive driven shaft respectively and form a plurality of forward gears towards a direction rotation.
A driven gear and the common and idle pulley engagement of driving gear in the said multiple speed ratio gear group; Driving gear drives the driven shaft counter-rotating through idle pulley and driven gear and forms reverse gear, and said idle pulley is fixed on the said bicycle rack through bearing and pivot shaft.
Said multiple speed ratio gear group is in three kinds of speed ratio gear groups, four kinds of speed ratio gear groups, the five kinds of speed ratio gear groups.
Said multiple speed ratio gear group is in three kinds of speed ratio gear groups, four kinds of speed ratio gear groups, the five kinds of speed ratio gear groups, and three driving gears of said three kinds of speed ratio gear groups and the speed ratio of three driven gears are respectively 1,3,5; Four driving gears of said four kinds of speed ratio gear groups and the speed ratio of four driven gears are respectively 1,1,2,4; Five driving gears of said five kinds of speed ratio gear groups and the speed ratio of five driven gears are respectively 1,1,2,4,5, and to be that 1 driving gear and driven gear are common form reverse gear with an idle pulley engagement to one of them speed ratio.
Said groove has two or four or six; Two or four or six grooves are symmetrical set around said driven gear hole wall or driving gear hole wall.
Said long slot bore is two; Said stressed slide block is two; Two long slot bores are symmetricly set on the said axis hole hole wall, and two long slot bore lines of centres and said axis hole central axis intersect, and said shift carriage is provided with hole perpendicular to driven shaft central axis both sides; When shift carriage is that said shift carriage is provided with hole perpendicular to driven shaft central axis both sides in the active axis hole time; Be placed with spring in the hole, two stressed slide blocks are pressed into the hole of shift carriage both sides from the end of spring, and said stressed slip front is the domatic convexity with front side of sliding before and after the shift carriage and rear side; After said stressed slip front snapped in the driven gear groove, the protruding lower edge of said stressed slide block domatic was lower than said driven shaft long slot bore collar extension edge.
The domatic convexity of said stressed slip front is the inclined-plane of the cambered surface or the rectilinear projection of arc-shaped convex, and the angle on two inclined-planes is 95 degree angle to 120 degree angles.
The rotational coupling mechanism of said shift carriage is: on shift carriage, be provided with a connecting bore; The central axis of said connecting bore and said driven shaft central axes; When shift carriage is the central axis and the said imput shaft central axes of said connecting bore in the active axis hole time; One with said gearshift pull bar bonded assembly pipe link pass said connecting bore; On the pipe link of connecting bore both sides, be provided with draw-in groove, two elastic cards insert draw-in groove respectively pipe link are rotatably connected on the shift carriage.
The rotational coupling mechanism of said shift carriage is: on shift carriage, be provided with a connecting bore; The central axis of said connecting bore and said driven shaft central axes; When shift carriage is the central axis and the said imput shaft central axes of said connecting bore in the active axis hole time; Bearing is installed in connecting bore, and the outward turning change of said bearing is captiveed joint with shift carriage, and the interior swivel eye of said bearing is captiveed joint with said gearshift pull bar.
A kind of front and back back and forth scrunch tricycle, comprise tricycle frame, three wheels, bicycle seat, steering hardware, brake gear and bicycle drives; Wherein two wheels are front portions that driven wheel is installed in bicycle rack; A wheel is the rear portion that adhesion wheel is installed in bicycle rack; Steering hardware is installed in the front portion of bicycle rack and controls said two wheel steerings; Bicycle seat is to lie the formula chair mounted between the above adhesion wheel of bicycle rack and driven wheel, and said bicycle drive comprises stretcher and bicycle shift gearshift, wherein:
Said bicycle shift gearshift comprise imput shaft and and driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack; Wherein, On imput shaft, be with first sprocket wheel, second sprocket wheel and a plurality of driving gear, said first sprocket wheel and second is installed on the imput shaft through forward clutch respectively with sprocket wheel, and said a plurality of driving gears are installed on the imput shaft through a plurality of reverse clutches respectively; Said driven shaft is provided with a plurality of driven gears, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; At least one pair of groove is set on the hole wall that said driven gear and driven shaft are nested, and a pair of groove is symmetrical set around said driven gear hole wall; Said driven shaft is the hollow shaft that has axis hole, and the axis of said driven shaft is provided with at least one pair of long slot bore in the hole wall upper edge of said axis hole, and a pair of long slot bore is symmetricly set on the said axis hole hole wall; The a pair of long slot bore line of centres and said axis hole central axis intersect; The length of long slot bore contains the groove on a plurality of said driven gear hole walls, is provided with shift carriage in the axis hole of said driven shaft, and shift carriage slides along the stressed front and back of axis hole; Said shift carriage is provided with hole perpendicular to driven shaft central axis both sides; Be placed with spring in the hole, two stressed slide blocks are pressed into the hole of shift carriage both sides from the end of spring, and stressed slide block is when shift carriage stretches out; Stressed slip front is passed the groove that long slot bore on the said driven shaft hole wall snaps in a said driven gear; The rear end of stressed slide block is retained in the shift carriage, and driving gear drives driven shaft through driven gear and stressed slide block and rotates, and said stressed slip front is that domatic is protruding with front side of sliding before and after the shift carriage and rear side; After said stressed slip front snapped in the driven gear groove, the protruding lower edge of said stressed slide block domatic was lower than said driven shaft long slot bore collar extension edge; Said shift carriage is provided with a connecting bore; The central axis of said connecting bore and said driven shaft central axes; Bearing is installed in connecting bore, and the outward turning change of said bearing is captiveed joint with shift carriage, and the interior swivel eye of said bearing is captiveed joint with a gearshift pull bar; Said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation, and said reverse clutch is to allow final gear to surmount the overriding clutch that imput shaft is rotated;
A driven gear and the common and idle pulley engagement of driving gear in the said multiple speed ratio gear group; Driving gear drives the driven shaft counter-rotating through idle pulley and driven gear and forms reverse gear, and said idle pulley is fixed on the said bicycle rack through bearing and pivot shaft;
Said gear shift device is installed in rear portion on the bicycle rack; Said adhesion wheel is connected on the said driven shaft; Said stretcher has two; Two stretchers divide on the bicycle rack before the left-right and front-back swing is installed in the formula seat of lying, and the bicycle rack between said two stretchers and the said gear shift device is provided with an idle wheel, and chain comes out around the upside of going into to first sprocket wheel from the downside of first sprocket wheel; The chain that comes out is walked around said idle wheel and is come out around the downside of going into to second sprocket wheel from the upside of second sprocket wheel, and two terminations of chain are connected with two stretchers respectively.
Said multiple speed ratio gear group is a kind of in three kinds of speed ratios, four kinds of speed ratios, the five kinds of speed ratio gear groups.
Said multiple speed ratio gear group is in three kinds of speed ratios, four kinds of speed ratios, the five kinds of speed ratio gear groups, and three driving gears of said three kinds of speed ratio gear groups and the speed ratio of three driven gears are respectively 1,3,5; Four driving gears of said four kinds of speed ratio gear groups and the speed ratio of four driven gears are respectively 1,1,2,4; Five driving gears of said five kinds of speed ratio gear groups and the speed ratio of five driven gears are respectively 1,1,2,4,5, and to be that 1 driving gear and driven gear are common form reverse gear with an idle pulley engagement to one of them speed ratio.
The domatic convexity of said stressed slip front front side and rear side is the inclined-plane of the cambered surface or the rectilinear projection of arc-shaped convex, and the angle on front side and two inclined-planes of rear side is 95 degree angle to 120 degree angles.
The utility model beneficial effect compared with prior art is: simple in structure, easy to operate, realized that gearshift settles at one go, and front and back back and forth scrunch province's force efficiency height, and the three-wheel and the formula seat of lying have improved the stability and the traveling comfort of bicycle.
Below in conjunction with accompanying drawing and embodiment the utility model is done and to be described in further detail.
Description of drawings
Fig. 1 is the utility model embodiment 1 gear shift apparatus structure scheme drawing;
Fig. 2 is the utility model embodiment 2 gear shift apparatus structure scheme drawings;
Fig. 3 has reverse gear gear shift apparatus structure scheme drawing for the utility model embodiment 3;
Fig. 4 back and forth scrunches the tricycle structural representation for a kind of front and back of the utility model;
Fig. 5 connects scheme drawing for back and forth scrunching chain before and after the utility model;
Fig. 6 is the utility model embodiment 1 driven gear shaft side scheme drawing;
Fig. 7 is the utility model embodiment 1 driving gear shaft side scheme drawing;
Fig. 8 is the utility model embodiment 1 driven shaft radial section scheme drawing;
Fig. 9 is the utility model embodiment 1 forward overriding clutch inner structure scheme drawing;
Figure 10 is the utility model embodiment 1 reverse overriding clutch inner structure scheme drawing;
Figure 11 is the bearing collar structural representation of the utility model embodiment 1 bearing;
Figure 12 is the utility model embodiment 1 bearing endless belt ball schematic side view.
The specific embodiment
Embodiment 1;
A kind of bicycle shift gearshift embodiment; Referring to Fig. 1, Fig. 6 to Figure 12, said gear shift device comprise imput shaft 1 and drive the driven shaft 3 that bicycle quick 2 rotates; Said imput shaft and driven shaft are parallel to each other and are fixed on the bicycle rack 5 through bearing 4; Wherein, on imput shaft, be with at least one by sprocket wheel 6 and a plurality of driving gears 7 that chain drives, said sprocket wheel is installed on the imput shaft through forward clutch 8; Said a plurality of driving gear is installed on the imput shaft through a plurality of reverse clutches 9; Said driven shaft is provided with a plurality of driven gears 10, and a plurality of driven gears are installed on the driven shaft through a plurality of bearings 11, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; The hole wall that said driven gear and driven shaft are nested is provided with axially penetrating groove 10-1; Said driven shaft is the hollow shaft that has axis hole 3-1; The axis of said driven shaft is provided with a long slot bore 3-2 at least in the hole wall upper edge of said axis hole; The length of long slot bore contains the groove on a plurality of said driven gear hole walls; Be provided with shift carriage 12 in the axis hole of said driven shaft, shift carriage along the stressed front and back of axis hole (direction shown in arrow among Fig. 1 13) slide, said shift carriage is provided with the stressed slide block 14 that at least one can elastic telescopic perpendicular to the driven shaft central axis; Stressed slide block is when shift carriage stretches out; Stressed slip front is passed the groove that long slot bore on the said driven shaft hole wall snaps in a said driven gear, and the rear end of stressed slide block is retained in the shift carriage, and driving gear drives driven shaft through driven gear and stressed slide block and rotates; Said shift carriage is provided with rotational coupling mechanism; Rotational coupling mechanism connects a gearshift pull bar 15, and said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation or rotating speed between imput shaft and sprocket wheel, and said reverse clutch is to allow driving gear to surmount the overriding clutch of imput shaft rotation or rotating speed between imput shaft and driving gear.
Overriding clutch among the embodiment is a kind of proven technique; There is the overriding clutch of multiple structure can use for reference use on the market; Mostly they are the overriding clutch of click formula, can certainly design voluntarily according to actual needs, and the forward overriding clutch in the present embodiment is exactly the overriding clutch of bicycle freewheel structure; Be that a kind of foreign steamer is provided with ratchet; The overriding clutch of very heavy group of rod 9-1 on interior wheel (imput shaft) is described sprocket wheel like Fig. 7 and Fig. 9 power-transfer clutch foreign steamer, and the endoporus of sprocket wheel is provided with ratchet.And the reverse overriding clutch in the present embodiment just in time is that ratchet, very heavy group of rod are gone up the reversing sense setting at same axle (imput shaft), and the forward overriding clutch is used conversely, and is shown in figure 10.
Among the embodiment, on driven shaft, a plurality of bearings wherein are to be installed in successively on the driven shaft to said a plurality of driven gears through a plurality of bearing installations; It can adopt standard rolling bearing to install, and also can be like Figure 11 and shown in Figure 12, and a plurality of bearing collar 11-1 are set on driven shaft; Be provided with the arc groove 11-2 that is used to place ball 12-3 at bearing collar; The corresponding with it arc groove that also is provided with on the driven gear during installation, is inserted in driven shaft with driven gear and bearing collar successively and fixes.
A plurality of driving gears are installed on the imput shaft through a plurality of reverse clutches described in the embodiment; A plurality of reverse clutches wherein are installed on the imput shaft; The interior endless belt of driving gear has ratchet; Its imput shaft is provided with very heavy group of rod groove, and a plurality of very heavy group of rods are put into and dialled the rod groove ratchet of corresponding driving gear successively, and then forms a plurality of driving gears and be installed on the imput shaft through a plurality of reverse clutches.
Among the embodiment; Only rotate as driven shaft towards a direction; Therefore the corresponding successively directly engagement of a plurality of driven gears in the said multiple speed ratio gear group and said a plurality of driving gears, a plurality of driving gears drive driven shaft respectively towards a plurality of forward gears of direction rotation formation through a plurality of driven gears.
Embodiment 2:
A kind of bicycle shift gearshift another kind is an instance; Referring to Fig. 2 and embodiment 1, embodiment 1 disclosed content also should be as the content of present embodiment, in embodiment 1; Driving gear is installed on the imput shaft through overriding clutch, and shift carriage is in driven axis hole; If driven gear is installed on the driven shaft through overriding clutch, shift carriage can be realized the function of embodiment 1 equally in the active axis hole, have the structure identical with embodiment that various structure is also arranged in the present embodiment.
Therefore; The said bicycle shift gearshift of present embodiment comprise imput shaft and with bicycle adhesion wheel bonded assembly driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack, on imput shaft, are with at least one by sprocket wheel and a plurality of driving gear that chain drives, and said sprocket wheel is installed on the imput shaft through forward clutch; Driving gear is installed on the imput shaft through bearing 29; Said driven shaft is provided with a plurality of driven gears, and said driven gear is installed on the driven shaft through a plurality of reverse clutches 30, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; The hole wall that said driving gear and imput shaft are nested is provided with groove 7-1; Said imput shaft is the hollow shaft that has axis hole 1-1; The axis of said imput shaft is provided with a long slot bore 1-2 at least in the hole wall upper edge of said axis hole; The length of long slot bore contains the groove on a plurality of said driving gear hole walls; Be provided with shift carriage in the axis hole of said imput shaft, shift carriage slides (shown in arrow 13-1) along the stressed front and back of axis hole, and said shift carriage is provided with the stressed slide block that at least one can elastic telescopic perpendicular to the imput shaft central axis; Stressed slide block is when shift carriage stretches out; Stressed slip front is passed the groove that long slot bore on the said imput shaft hole wall snaps in a said driving gear, and the rear end of stressed slide block is retained in the shift carriage, and driving gear drives the driven shaft rotation through stressed slide block and driven gear; Said shift carriage is provided with rotational coupling mechanism; Rotational coupling mechanism connects a gearshift pull bar, and said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation between imput shaft and sprocket wheel, and said reverse clutch is to allow driven shaft to surmount the overriding clutch that driven gear rotates between driven shaft and driven gear.Identical with embodiment 1, the forward in the present embodiment is the overriding clutch of bicycle freewheel structure with reverse overriding clutch, and reverse overriding clutch wherein is that foreign steamer is provided with ratchet, the overriding clutch of very heavy group of rod 30-1 on interior wheel (driven shaft),
Embodiment 3:
Referring to Fig. 3, embodiment 1 and embodiment 2; Embodiment 1 also should be as the content of present embodiment with embodiment 2 disclosed contents; The difference of present embodiment and embodiment 1 and 2 is; Can rotate to both direction as driven shaft; That is to say and in the bicycle shift gearshift, increase the function that reverse gear is arranged; Driven gear in the said multiple speed ratio gear group of present embodiment and driving gear common with 16 engagements of an idle pulley, driving gear drives the driven shaft counter-rotating through idle pulley and driven gear and forms reverse gear, promptly forms a plurality of driving gears and drives in a plurality of driven gears rotations and have a driven gear to turn to identical multiple speed ratio gear group with other driven gear switched in opposite with driving gear; Thereby realize promptly having forward gear that the function of reverse gear is arranged again, said idle pulley is fixed on the said bicycle rack through bearing 17 and pivot shaft 18.
In embodiment 1 and embodiment 2, can be a kind of in three kinds of speed ratio gear groups or four kinds of speed ratio gear groups or the five kinds of speed ratio gear groups according to the said multiple speed ratio gear group of the needs of reality.Speed ratio is according to the speed change request setting; For example, three of said three kinds of speed ratio gear groups driving gears and three driven gears for example is respectively 1,3,5; Four driving gears of said four kinds of speed ratio gear groups and the speed ratio of four driven gears are respectively 1,1,2,4; Five driving gears of said five kinds of speed ratio gear groups and the speed ratio of five driven gears are respectively 1,1,2,4,5, and to be that 1 driving gear and driven gear are common form reverse gear with an idle pulley engagement to one of them speed ratio.
Embodiment 4:
Referring to embodiment 1, embodiment 2 and Fig. 3; Embodiment 1, embodiment 2, embodiment 3 disclosed contents also should be as the content of present embodiment; Present embodiment on the basis of the foregoing description, the hole wall that said driven gear and driven shaft are nested be provided with groove (being that the hole wall that said driving gear and imput shaft are nested is provided with groove among the embodiment 2) can have two or four or six promptly a pair of, two pairs, three pairs; Two or four or six grooves are symmetrical set around said driven gear hole wall (being the driving gear hole wall in embodiment 2).Wherein, Optimal scheme is: said long slot bore is two (as shown in Figure 8); Said stressed slide block is two; Two long slot bores are symmetricly set on the said axis hole hole wall, and two long slot bore lines of centres and said axis hole central axis intersect, and said shift carriage is provided with hole 12-1 perpendicular to driven shaft central axis both sides (being that said shift carriage is perpendicular to imput shaft central axis both sides) in embodiment 2; Be placed with spring 12-2 in the hole; Two stressed slide blocks are pressed into the hole of shift carriage both sides from the end of spring, and said stressed slip front is the domatic convexity 14-1 that the top is connected each other with front side of sliding before and after the shift carriage and rear side, after said stressed slip front snaps in the driven gear groove (being after snapping in the driving gear groove in embodiment 2); The protruding lower edge 12-3 of said stressed slide block domatic is lower than said driven shaft long slot bore collar extension edge 3-2-1 (being imput shaft long slot bore collar extension edge 1-2-1) in embodiment 2, generally be lower than 4-6mm.This kind structure is convenient to stressed slide block and when receiving the push-pull effort of gearshift pull bar, from groove, is withdrawed from easily; So wherein, the domatic convexity of said stressed slip front front side and rear side is the inclined-plane of the cambered surface or the rectilinear projection of arc-shaped convex, and the angle on front side and two inclined-planes of rear side is 95 degree angle to 120 degree angles, and optimum angle is 100 degree.
Embodiment 5:
Referring to Fig. 1, embodiment 1, embodiment 2, embodiment 3 and embodiment 4; Embodiment 1, embodiment 2, embodiment 3 and embodiment 4 disclosed contents also should be as the contents of present embodiment; In the above-described embodiments, the rotational coupling mechanism of said shift carriage can be: as shown in Figure 1, on shift carriage, be provided with a connecting bore; The central axis of said connecting bore overlaps with said driven shaft central axis or imput shaft center shaft; One with said gearshift pull bar 15 bonded assembly pipe link 15-1 pass said connecting bore, on the pipe link of connecting bore both sides, be provided with draw-in groove, two elastic cards insert draw-in groove respectively pipe link are rotatably connected on the shift carriage.
The difference of present embodiment is; The rotational coupling mechanism of said shift carriage is: as shown in Figure 3; On shift carriage, be provided with a connecting bore 12-4; The central axis of said connecting bore and said driven shaft (in embodiment 2, being imput shaft) central axes is equipped with bearing 19 in connecting bore, the outward turning change 19-1 of said bearing is captiveed joint with shift carriage; The interior swivel eye 19-2 of said bearing is captiveed joint with said gearshift pull bar; What the said bearing of present embodiment used is bearing with spherical outside surface, the deep groove ball bearing that roller bearing units is more general its characteristics easy to use be mainly loading and unloading simple, when the gearshift pull bar angle that correct time can the adjust a bearing center, can adapt to rocking of gearshift pull bar.
For the sprocket wheel in the rotation present embodiment of realizing a kind of crank motion driving driving wheel is two, two sprocket wheels are installed on the imput shaft through two forward overriding clutchs respectively.
Embodiment 6:
A kind of front and back back and forth scrunch tricycle; Referring to Fig. 4 and Fig. 5; Embodiment 1, embodiment 3 and embodiment 4, embodiment 5 disclosed contents also should be as the content of present embodiment, and said tricycle comprises tricycle frame 20, three wheels, bicycle seat 21, steering hardware 22, brake gear 23 and bicycle drives; Wherein two wheels are front portions that driven wheel 24 is installed in bicycle rack; A wheel is the rear portion that adhesion wheel 25 is installed in bicycle rack; The front portion that steering hardware is installed in bicycle rack is controlled said driven wheel and is turned to; Bicycle seat is to lie the formula chair mounted between the above adhesion wheel of bicycle rack and driven wheel, and said bicycle drive comprises stretcher 26 and bicycle shift gearshift, and brake gear is traditional brake gear; Mounting means also is traditional mode, wherein:
Said bicycle shift gearshift is as described in embodiment 1, the embodiment 3 to embodiment 5; Comprise imput shaft and and driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack; Wherein, On imput shaft, be with the first sprocket wheel 6-1, second and sprocket wheel 6-2 and a plurality of driving gear, said first sprocket wheel and second is installed on the imput shaft through the forward overriding clutch respectively with sprocket wheel, and said a plurality of driving gears are installed on the imput shaft through reverse overriding clutch respectively; Be provided with a plurality of driven gears through bearing installation on the said driven shaft, said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; At least one pair of groove is set on the hole wall that said driven gear and driven shaft are nested, and a pair of groove is symmetrical set around said driven gear hole wall; Said driven shaft is the hollow shaft that has axis hole; The axis of said driven shaft is provided with at least one pair of long slot bore in the hole wall upper edge of said axis hole; A pair of long slot bore is symmetricly set on the said axis hole hole wall, and a pair of long slot bore line of centres and said axis hole central axis intersect, and the length of long slot bore contains the groove on a plurality of said driven gear hole walls; Be provided with shift carriage in the axis hole of said driven shaft; Shift carriage slides along the stressed front and back of axis hole, and said shift carriage is provided with hole perpendicular to driven shaft central axis both sides, is placed with spring in the hole; Two stressed slide blocks are pressed into the hole of shift carriage both sides from the end of spring; Stressed slide block is when shift carriage stretches out, and stressed slip front is passed the groove that long slot bore on the said driven shaft hole wall snaps in a said driven gear, and the rear end of stressed slide block is retained in the shift carriage; Driving gear drives driven shaft through driven gear and stressed slide block and rotates; Said stressed slip front is the domatic convexity that the top is connected each other with front side of sliding before and after the shift carriage and rear side, and after said stressed slip front snapped in the driven gear groove, the protruding lower edge of said stressed slide block domatic was lower than said driven shaft long slot bore collar extension edge; Said shift carriage is provided with a connecting bore; The central axis of said connecting bore and said driven shaft central axes; Bearing is installed in connecting bore; The outward turning change of said bearing is captiveed joint with shift carriage, and the interior swivel eye of said bearing is captiveed joint with a gearshift pull bar, and the gearshift pull bar prolongs the next door that control handle 15-1 is arranged on seat through one; Said forward overriding clutch is to allow imput shaft to surmount the power-transfer clutch of sprocket rotation or rotating speed, and said reverse overriding clutch is to allow driving gear to surmount the power-transfer clutch of imput shaft rotation or rotating speed;
A driven gear and the common and idle pulley engagement of driving gear in the said multiple speed ratio gear group; Driving gear drives the driven shaft counter-rotating through idle pulley and driven gear and forms reverse gear, and said idle pulley is fixed on the said bicycle rack through bearing and pivot shaft;
Said gear shift device is installed in rear portion on the bicycle rack; Said adhesion wheel is connected on the said driven shaft; Said stretcher has two; Two stretchers divide on the bicycle rack before the left-right and front-back swing is installed in the formula seat of lying, and the bicycle rack between said two stretchers and the said gear shift device is provided with an idle wheel 27; As shown in Figure 5: chain 28 comes out around the upside of going into to first sprocket wheel from the downside of first sprocket wheel; The chain that comes out is walked around said idle wheel and is come out around the downside of going into to second sprocket wheel from the upside of second sprocket wheel, and two terminations of chain are connected with two stretchers respectively.
In the present embodiment; Said as required multiple speed ratio gear group is in three kinds of speed ratio gear groups or four kinds of speed ratio gear groups or the five kinds of speed ratio gear groups, and three driving gears of said three kinds of speed ratio gear groups and the speed ratio of three driven gears are respectively 1,3,5; Four driving gears of said four kinds of speed ratio gear groups and the speed ratio of four driven gears are respectively 1,1,2,4; Five driving gears of said five kinds of speed ratio gear groups and the speed ratio of five driven gears are respectively 1,1,2,4,5, and to be that 1 driving gear and driven gear are common form reverse gear with an idle pulley engagement to one of them speed ratio.
The domatic convexity of stressed slip front front side and rear side described in the present embodiment is the inclined-plane of the cambered surface or the rectilinear projection of arc-shaped convex, and the angle on front side and two inclined-planes of rear side is 95 degree angle to 120 degree angles, and optimum angle is 100 degree.
Claims (10)
1. bicycle shift gearshift; Comprise imput shaft and with bicycle adhesion wheel bonded assembly driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack, it is characterized in that, on imput shaft, are with sprocket wheel and a plurality of driving gear that at least one is driven by chain; Said sprocket wheel is installed on the imput shaft through forward clutch; Said a plurality of driving gear is installed on the imput shaft through a plurality of reverse clutches, and said driven shaft is provided with a plurality of driven gears, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; The hole wall that said driven gear and driven shaft are nested is provided with groove; Said driven shaft is the hollow shaft that has axis hole; The axis of said driven shaft is provided with a long slot bore at least in the hole wall upper edge of said axis hole, and the length of long slot bore contains the groove on a plurality of said driven gear hole walls, is provided with shift carriage in the axis hole of said driven shaft; Shift carriage slides along the stressed front and back of axis hole; Said shift carriage is provided with the stressed slide block that at least one can elastic telescopic perpendicular to the driven shaft central axis, and stressed slide block is when shift carriage stretches out, and stressed slip front is passed the groove that long slot bore on the said driven shaft hole wall snaps in a said driven gear; The rear end of stressed slide block is retained in the shift carriage; Driving gear drives driven shaft through driven gear and stressed slide block and rotates, and said shift carriage is provided with rotational coupling mechanism, and rotational coupling mechanism connects a gearshift pull bar; Said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation, and said reverse clutch is to allow driving gear to surmount the overriding clutch that imput shaft is rotated.
2. bicycle shift gearshift; Comprise imput shaft and with bicycle adhesion wheel bonded assembly driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack, it is characterized in that, on imput shaft, are with sprocket wheel and a plurality of driving gear that at least one is driven by chain; Said sprocket wheel is installed on the imput shaft through forward clutch; Said driven shaft is provided with a plurality of driven gears, and said a plurality of driven gears are installed on the driven shaft through a plurality of reverse clutches, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; The hole wall that said driving gear and imput shaft are nested is provided with groove; Said imput shaft is the hollow shaft that has axis hole; The axis of said imput shaft is provided with a long slot bore at least in the hole wall upper edge of said axis hole, and the length of long slot bore contains the groove on a plurality of said driving gear hole walls, is provided with shift carriage in the axis hole of said imput shaft; Shift carriage slides along the stressed front and back of axis hole; Said shift carriage is provided with the stressed slide block that at least one can elastic telescopic perpendicular to the imput shaft central axis, and stressed slide block is when shift carriage stretches out, and stressed slip front is passed the groove that long slot bore on the said imput shaft hole wall snaps in a said driving gear; The rear end of stressed slide block is retained in the shift carriage; Driving gear drives driven shaft through stressed slide block and driven gear and rotates, and said shift carriage is provided with rotational coupling mechanism, and rotational coupling mechanism connects a gearshift pull bar; Said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation, and said reverse clutch is to allow driven shaft to surmount the overriding clutch that driven gear rotates.
3. a kind of bicycle shift gearshift according to claim 1 and 2; It is characterized in that; A plurality of driven gears of said multiple speed ratio gear group and the corresponding successively directly engagement of said a plurality of driving gears, a plurality of driven gears drive driven shaft respectively and form a plurality of forward gears towards a direction rotation.
4. a kind of bicycle shift gearshift according to claim 1 and 2; It is characterized in that; A driven gear and the common and idle pulley engagement of driving gear in the said multiple speed ratio gear group; Driving gear drives the driven shaft counter-rotating through idle pulley and driven gear and forms reverse gear, and said idle pulley is fixed on the said bicycle rack through bearing and pivot shaft.
5. a kind of bicycle shift gearshift according to claim 1 and 2; It is characterized in that said long slot bore is two, said stressed slide block is two; Two long slot bores are symmetricly set on the said axis hole hole wall; Two long slot bore lines of centres and said axis hole central axis intersect, and said shift carriage is provided with hole perpendicular to the central axis both sides, is placed with spring in the hole; Two stressed slide blocks are pressed into the hole of shift carriage both sides from the end of spring; Said stressed slip front is that domatic is protruding with front side of sliding before and after the shift carriage and rear side, and after said stressed slip front snapped in the driven gear groove, the protruding lower edge of said stressed slide block domatic was lower than said long slot bore collar extension edge.
6. a kind of bicycle shift gearshift according to claim 1 and 2; It is characterized in that; The domatic convexity of said stressed slip front front side and rear side is the inclined-plane of the cambered surface or the rectilinear projection of arc-shaped convex, and the angle on front side and two inclined-planes of rear side is 95 degree angle to 120 degree angles.
7. a kind of bicycle shift gearshift according to claim 1; It is characterized in that; The rotational coupling mechanism of said shift carriage is: on shift carriage, be provided with a connecting bore, the central axis of said connecting bore and said driven shaft central axes are equipped with bearing in connecting bore; The outward turning change of said bearing is captiveed joint with shift carriage, and the interior swivel eye of said bearing is captiveed joint with said gearshift pull bar.
8. a kind of bicycle shift gearshift according to claim 2; It is characterized in that; The rotational coupling mechanism of said shift carriage is: on shift carriage, be provided with a connecting bore, the central axis of said connecting bore and said imput shaft central axes are equipped with bearing in connecting bore; The outward turning change of said bearing is captiveed joint with shift carriage, and the interior swivel eye of said bearing is captiveed joint with said gearshift pull bar.
9. front and back back and forth scrunch tricycle, comprise tricycle frame, three wheels, bicycle seat, steering hardware, brake gear and bicycle drives; Wherein two wheels are front portions that driven wheel is installed in bicycle rack; A wheel is the rear portion that adhesion wheel is installed in bicycle rack; Steering hardware is installed in the front portion of bicycle rack and controls said two wheel steerings; Bicycle seat is to lie the formula chair mounted between the above adhesion wheel of bicycle rack and driven wheel, and said bicycle drive comprises stretcher and bicycle shift gearshift, it is characterized in that; Said bicycle shift gearshift comprise imput shaft and and driven shaft; Said imput shaft and driven shaft are parallel to each other through bearing fixing on bicycle rack, wherein, on imput shaft, are with first sprocket wheel, second sprocket wheel and a plurality of driving gear; Said first sprocket wheel and second sprocket wheel are installed on the imput shaft through forward clutch respectively; Said a plurality of driving gear is installed on the imput shaft through reverse clutch respectively, and said driven shaft is provided with a plurality of driven gears, and said a plurality of driven gears and said a plurality of driving gears are corresponding successively to connect to form multiple speed ratio gear group; At least one pair of groove is set on the hole wall that said driven gear and driven shaft are nested, and a pair of groove is symmetrical set around said driven gear hole wall; Said driven shaft is the hollow shaft that has axis hole, and the axis of said driven shaft is provided with at least one pair of long slot bore in the hole wall upper edge of said axis hole, and a pair of long slot bore is symmetricly set on the said axis hole hole wall; The a pair of long slot bore line of centres and said axis hole central axis intersect; The length of long slot bore contains the groove on a plurality of said driven gear hole walls, is provided with shift carriage in the axis hole of said driven shaft, and shift carriage slides along the stressed front and back of axis hole; Said shift carriage is provided with hole perpendicular to driven shaft central axis both sides; Be placed with spring in the hole, two stressed slide blocks are pressed into the hole of shift carriage both sides from the end of spring, and stressed slide block is when shift carriage stretches out; Stressed slip front is passed the groove that long slot bore on the said driven shaft hole wall snaps in a said driven gear; The rear end of stressed slide block is retained in the shift carriage, and driving gear drives driven shaft through driven gear and stressed slide block and rotates, and said stressed slip front is that domatic is protruding with front side of sliding before and after the shift carriage and rear side; After said stressed slip front snapped in the driven gear groove, the protruding lower edge of said stressed slide block domatic was lower than said driven shaft long slot bore collar extension edge; Said shift carriage is provided with a connecting bore; The central axis of said connecting bore and said driven shaft central axes; Bearing is installed in connecting bore, and the outward turning change of said bearing is captiveed joint with shift carriage, and the interior swivel eye of said bearing is captiveed joint with a gearshift pull bar; Said forward clutch is to allow imput shaft to surmount the overriding clutch of sprocket rotation, and said reverse clutch is to allow final gear to surmount the overriding clutch that imput shaft is rotated;
A driven gear and the common and idle pulley engagement of driving gear in the said multiple speed ratio gear group; Driving gear drives the driven shaft counter-rotating through idle pulley and driven gear and forms reverse gear, and said idle pulley is fixed on the said bicycle rack through bearing and pivot shaft;
Said gear shift device is installed in rear portion on the bicycle rack; Said adhesion wheel is connected on the said driven shaft; Said stretcher has two; Two stretchers divide on the bicycle rack before the left-right and front-back swing is installed in the formula seat of lying, and the bicycle rack between said two stretchers and the said gear shift device is provided with an idle wheel, and chain comes out around the upside of going into to first sprocket wheel from the downside of first sprocket wheel; The chain that comes out is walked around said idle wheel and is come out around the downside of going into to second sprocket wheel from the upside of second sprocket wheel, and two terminations of chain are connected with two stretchers respectively.
10. back and forth scrunch tricycle according to the said a kind of front and back of claim 9; It is characterized in that; The domatic convexity of said stressed slip front front side and rear side is the inclined-plane of the cambered surface or the rectilinear projection of arc-shaped convex, and the angle on two inclined-planes of front side and rear side is 95 degree angle to 120 degree angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200553218U CN202449166U (en) | 2012-02-21 | 2012-02-21 | Tricycle speed changing and shifting device and back and forth pedaling tricycle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200553218U CN202449166U (en) | 2012-02-21 | 2012-02-21 | Tricycle speed changing and shifting device and back and forth pedaling tricycle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202449166U true CN202449166U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200553218U Expired - Lifetime CN202449166U (en) | 2012-02-21 | 2012-02-21 | Tricycle speed changing and shifting device and back and forth pedaling tricycle with same |
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| Country | Link |
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| CN (1) | CN202449166U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556275A (en) * | 2012-02-21 | 2012-07-11 | 张锷 | Bicycle gear shifting device and back-and-forth pedaling tricycle |
| CN104500729A (en) * | 2014-12-10 | 2015-04-08 | 张家港市九鼎机械有限公司 | Gear shifting device and vehicle with same |
| CN104494775A (en) * | 2014-12-10 | 2015-04-08 | 张家港市九鼎机械有限公司 | Light-weight speed changing device and bicycle adopting light-weight speed changing device |
-
2012
- 2012-02-21 CN CN2012200553218U patent/CN202449166U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556275A (en) * | 2012-02-21 | 2012-07-11 | 张锷 | Bicycle gear shifting device and back-and-forth pedaling tricycle |
| WO2013123851A1 (en) * | 2012-02-21 | 2013-08-29 | Zhang E | Tricycle gear shift unit, and tricycle capable of being pedaled back and forth |
| CN102556275B (en) * | 2012-02-21 | 2014-06-04 | 张锷 | Bicycle gear shifting device and back-and-forth pedaling tricycle |
| CN104500729A (en) * | 2014-12-10 | 2015-04-08 | 张家港市九鼎机械有限公司 | Gear shifting device and vehicle with same |
| CN104494775A (en) * | 2014-12-10 | 2015-04-08 | 张家港市九鼎机械有限公司 | Light-weight speed changing device and bicycle adopting light-weight speed changing device |
| CN104494775B (en) * | 2014-12-10 | 2017-05-24 | 张家港市九鼎机械有限公司 | Light-weight speed changing device and bicycle adopting light-weight speed changing device |
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