CN1586973A - Man power cycle double side swing type self limiting pedal rod driving mechanism - Google Patents
Man power cycle double side swing type self limiting pedal rod driving mechanism Download PDFInfo
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- CN1586973A CN1586973A CN 200410064355 CN200410064355A CN1586973A CN 1586973 A CN1586973 A CN 1586973A CN 200410064355 CN200410064355 CN 200410064355 CN 200410064355 A CN200410064355 A CN 200410064355A CN 1586973 A CN1586973 A CN 1586973A
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Abstract
The present invention relates to double-side swing type self limiting pedal rod driving mechanism for man power cycle. It has shortened crank center distance, crank pins set to the outer end of crank, and roller fixed via bearing onto the crank pin. While pedaling the double-side swing type self limiting pedal rod, the roller drives the crank to drive the middle shaft and the lower crank has its roller driving the lower pedal rod upwards. The present invention has double-sided self limiting pedal rod with crank starting angle greater than 40 deg and idle pedal rod stroke within 5 % of total stroke and capable of limiting the final position and the position of the other crank, realizing linking of double pedal rods. The positioning connection of the pedal rod and roller raises the drive efficiency. Thus, the present invention has simple structure, less parts, low cost and high efficiency, and is suitable for various kinds of bicycles.
Description
One, affiliated technical field
The invention belongs to transportation means, B62M1/04 class, man power cycle double side swing type self limiting pedal rod driving mechanism.
Two, technical background
Current, the bicycle that people generally use is started and operation by foot-operated crank circle Zhou Xuanzhuan, and this power the way of initiating makes the effective rate of utilization less than 70 percent of manpower, and when approaching formation dead angle when vertical in crank and ground, make to start difficulty, transmitted power reduces to zero.For overcoming this shortcoming, many schemes have appearred, wherein application number is 87100267 and is called the patent application of actuating unit for bicycle and manpower bicycle's treadle formula actuating device utility model patent that the patent No. is ZL02229919X, they all are that foot-operated power is directly exerted pressure to crank Xiao who is located at the Middle axle crank outer end by the straight line of oscillating type treadle, drive the axis rotation and realize what treadle linked.Wherein the latter is the former improvement invention, and it is to roll that slide block is changed into roller change slip.Reduced frictional resistance, but because of there not being the measure that is located by connecting between treadle and roller, the anti-drive efficiency that makes descends than the former, idle running made the shortcoming of drive efficiency and degree of comfort decreased greatly when they all existed treadle to step again, was difficult to carry out.And patent application technology (documents) scheme of man-power single side swing type external limiting pedal rod driving mechanism, though solved the big problem of idle running, but make complex structure because of having set up inhibiting device, mechanism's weight increases, also existing simultaneously can not be spacing to the next crank, crank idle running angle φ is arranged, make the final position treadle and a shortcoming of the asynchronous interlock of treadle that begins.
Three, Fa Ming purpose and major technique feature
The purpose of this invention is to provide a kind of may command treadle idle running and can realize high efficiency drive (power is 1.5 times of existing car power) and treadle synchronous interaction do not need again to limit the in addition man power cycle double side swing type self limiting pedal rod driving mechanism simple in structure, in light weight, with low cost of a device.
The common ground of manpower car double side swing type self limiting pedal rod driving mechanism of the present invention and documents scheme is to step the oscillating type treadle 9 that revolves on the assembly 3 that is connected that the heart is located at chain stay spider 2 under the axis rear portion when manpower, 9 ' time, the working edge of foot-operated power pars infrasegmentalis in treadle, act on and be located at by bearing 7,7 ' be fixed on crank Xiao 6,6 ' on roller 8,8 ', make crank 5,5 ' rotation drives axis 1 and makes the interlock of bilateral treadle, they all are when the crank center line is plumb bob vertical, beginning position by upper crank roller decision treadle, by the final position of the next crank roller decision treadle, and all be by the spacing of final position treadle realized.And the high position of treadle all is by the working edge of treadle tangent with it formation the in top, external envelope garden in the roller rotation, treadle 9,9 ' two kinds of connection modes are all arranged with the assembly 3 that is connected: a kind of is to be connected and fixed with treadle axle 4,4 ' running-fit on the hole and the assembly 3 that is connected, and another kind is to be connected and fixed with treadle cover 4,4 ' running-fit on the axle and the assembly 3 that is connected.Treadle pivot angle ψ＜60 °, the working edge of treadle cuts shape and can be straight line or curve, reaches constituting of the two.Treadle 9,9 ' with roller 8,8 ' have open type and the two kinds of connection modes of inseparable enclosed that can divide.Driver train of the present invention can the axis axle center be an axle after designs fix, revolution arbitrarily, and match with open type treadle or enclosed treadle, thus form bicycle and the rickshaw that various vertical, levels or inclination scrunch.
Feature of the present invention is that the working edge of oscillating type treadle is made up of two parts that intersect, what be positioned at the front portion is spacing driving limit, what be positioned at the rear portion is to return the limit, and the basical traditional model of working edge is two straight lines that intersect, and it is modified to each working edge and all can be made of straight, the curve of various combination.Treadle idle running of the present invention is always stepped on 5 percent of distance less than treadle, and crank starts angle γ
o=ψ＞40 °, crank final position drive line angle γ
t=0.
Four, Fa Ming content, advantage, purposes.
Accompanying drawing 1 is the driver train scheme drawing that the present invention is used for existing car, from Fig. 1 as seen:
The present invention contains axis 1, following chain stay spider 2, assembly 3 is connected, a left side, right treadle axle or treadle cover 4,4 ', a left side, right crank 5,5 ', a left side, right crank Xiao 6,6 ', bearing 7,7 ', roller 8,8 ', a left side, right treadle 9,9 ', a left side, right pedal 10,10 ', a left side, right reinforcing rod 11,11 ', elastic element 12,12 ' it is characterized in that having double side swing type self limiting pedal rod, by treadle axle on the assembly 3 that is connected or treadle cover 4,4 ' be fixed on down on the chain stay spider 2, the assembly 3 that is connected both can weld fixing, also install and fix, the dual mode that is fixedly connected with of the treadle and the assembly that is connected: a kind of is with the treadle axle 9 on the hole and the assembly 3 that is connected, 9 ' running-fit is connected and fixed, another kind is with the treadle cover 9 on the axle and the assembly 3 that is connected, 9 ' running-fit is connected and fixed, and two working edges of treadle are arranged in the pars infrasegmentalis of treadle, but the constituting of its section shape straight line or curve and the two.The working edge of treadle is partly formed by two, what be positioned at the front portion is spacing driving limit, its effect mainly is to the final position treadle and the next crank is carried out spacing simultaneously and Middle axle crank drives, have treadle simultaneously concurrently and begin to return effect, being positioned at the spacing driving of treadle limit working edge afterwards is to return the limit, it mainly acts on is to realize jointly that with spacing driving limit the next crank does not have idle running angle (φ=0), guarantee that the final position treadle does not have idle running and returns, make the synchronous interaction of bilateral treadle, have the effect of control treadle idle running simultaneously concurrently.The basic version of above-mentioned two working edges is two straight lines that intersect, and its modification can be respectively be made of the various combination form of straight, curve.
The feature on spacing driving limit is:
1, this limit is in treadle when position beginning, with the contact point of upper crank roller be the point of contact of this limit and roller, both drive points on this limit (beginning drive point), the normal of this point is crossed the roller center, and becomes crank startup angle γ with plumb bob vertical
o, and γ
o＞40 °, the distance of aft terminal on this limit (points 1 among both two working edge intersection point Fig. 2,3) and the outer garden of upper crank roller face is less than 0.5 millimeter.
2, this limit when the treadle final position and the contact point of the next crank roller be the point of contact of this limit and roller, both spacing points on this limit, the normal of this point are crossed crank center and roller center and are overlapped the drive line angle γ of crank power with plumb bob vertical
t=0, the distance of aft terminal on this limit (points 1 among both two working edge intersection point Fig. 2,3) and the outer garden of the next crank roller face is greater than 1/3 roller diameter (d).
3, on spacing driving limit, spacing preceding, drive point after, active section before the drive point is both for driving active section, the function of the active section between drive point and the spacing point has two, and existing driving function has again initially, returns function, be called compound active section, during enforcement this composite log distinguished extension e value to two ends: 1＜e＜5 are to guarantee that failure-free driving and spacing is arranged.
4, this limit is when the spacing anterior working edge that adopts notching curve, can obviously increase behind the crank the 1/3 average drive line angle that drives corner power, improves drive efficiency.
The feature of returning the limit is:
1, when the treadle final position, returns the outside of limit, and do not intersect with it in the interior envelope garden of roller rotational trajectory.
2, return the limit idle running when big when what adopt, can adopt the notching curve of radius of curvature, help to reduce idle running, improve drive efficiency at its leading portion more than or equal to the external envelope garden radius of roller rotational trajectory.
Treadle of the present invention is the same with the man-power single side swing type external limiting driver train, by itself and the roller two kinds of connection modes that whether have been located by connecting, a kind of is the non-open type that is located by connecting and can divides, a kind of is the inseparable enclosed that is located by connecting, the feature of open type treadle is that the bottom of treadle both had been working edge, the feature of enclosed treadle is that the treadle bottom is provided with the osed top circular groove, roller is connected for running-fit with poor, roller can freely roll in groove, and the top of groove both had been two working edges, the open type treadle must be at treadle 9,9 ' and reinforcing rod 11,11 ' or car body between, peripheral hardware elastic element 12,12 ', make the treadle pair roller produce elastic pressure, make the two keep the elastic compression state, the open type Elastic Contact that formation can divide connects, and the enclosed treadle then forms inseparable enclosed and is located by connecting.Accompanying drawing 5 is driver trains that the present invention adopts the enclosed treadle to form, be applied in the embodiment on the bicycle that tilting steps, from scheme visible it be that the open type treadle of the driver train the accompanying drawing 1 is changed into enclosed treadle 9,9 ' and be axle with axis axle center 1, mechanism's integral body rotation alpha degree and direct formation.Accompanying drawing 6 is driver trains that the present invention adopts the open type treadle to form, be applied in the embodiment on the bicycle that tilts to scrunch, as seen it is the open type pedal rod driving mechanism the accompanying drawing 1 from scheming, with axis axle center 1 is axle, behind the whole rotation alpha degree of mechanism, reinforcing rod 11,11 ' and treadle working edge one side between, add tension spring 12,12 ', its spring two outer ends respectively with reinforcing rod 11,11 ' with treadle 9,9 ' be connected, thereby make treadle become to compress contact condition with roller by working edge.As seen from above-mentioned, driver train of the present invention is after designs fix, and treadle revolves the heart and can the axis axle center be axle, revolution arbitrarily, and match with open type or enclosed treadle among the present invention.Thereby form bicycle or rickshaw that various vertical, levels or inclination scrunch.
The revolving the heart and can be located at down in the chain stay spider 2 of treadle of the present invention, or bottom.Treadle returns working edge must guarantee that the idle running of treadle is less than always stepping on 5% of distance.The left and right crank 5,5 of the present invention ' be fixed on axis two outer ends, symmetrical each other, its outer end establish fixing crank Xiao 6,6 ', bearing 7,7 ' endoporus be fixed on crank Xiao 6,6 ' on, outer garden then be fixed on roller 8,8 ' endoporus in, (as being plain bearing, then outer garden of bearing and roller are fixed, and endoporus is connected for running-fit with crank Xiao).
Accompanying drawing 1 is used for the driver train scheme drawing of existing car for open type treadle of the present invention.
Accompanying drawing 2 is the work scheme drawing of two kinds of working edge combinations of treadle of the present invention.
Accompanying drawing 3 is made every effort to merit figure for treadle basical traditional model working edge of the present invention.
Accompanying drawing 4 is used for the driver train scheme drawing of existing car for enclosed treadle of the present invention.
Accompanying drawing 5 steps the bicycle scheme drawing for the inclination that the present invention adopts the enclosed treadle to form.
Accompanying drawing 6 steps the bicycle scheme drawing for the inclination that the present invention adopts the open type treadle to form.
Fig. 1 is the driver train that the open type treadle of modification working edge swing type self limiting of the present invention is formed, application example on existing car, crank is in ground and becomes vertical among the figure, the working edge of treadle is made of with spacing driving limit straight, the curve combination jointly the limit of returning of straight line, and the treadle start bit is γ to the drive line angle of crank power
o, the treadle pivot angle is ψ and γ
o=ψ＞40 ° open type treadle is connected by the elastic pressure contact of establishing tension spring 12,12 ' realization treadle and roller between boom rod end outside its underpart and shelf standpipe.
Fig. 2 is the work scheme drawing of the modification working edge that adopts among straight line basical traditional model working edge and Fig. 1, has related parameter as follows: (unit of length: millimeter, angular unit: degree, unit of force: kilogram) represent treadle with working edge among the figure.
A---treadle and crank revolve the heart apart from γ
o---the crank when treadle begins the position starts the angle
L---the long γ of treadle
t---the drive line angle (γ of final position power under the crank
t=0)
h
AlwaysThe high-order cooresponding crank roller line of centers of---treadle is always stepped on apart from β---treadle
H---treadle is effectively stepped on distance and the plumb bob vertical angle of cut (β=∠ H
oCG
o)
Δ h---treadle idle running r---forms the tangent line garden radius that treadle returns the limit
δ---treadle idle running angle r '---forms the tangent line garden radius of pedal rod driven limit composite log
The anterior radius of curve in the spacing driving limit of ψ---treadle effective angle f obliquity R '---modification
R---crank center is apart from e---spacing driving limit composite log (23) two ends perimetric length
The foot-operated constant force of d---roller diameter F---vertical ground
Dotted line among the figure: two kinds of working edge treadle upper level position lines.
B1 (H)---a bilinear working edge combination treadle high position (basical traditional model)
B1H---straight, a curve working edge combination treadle high position (modification)
Solid line among the figure: B1 (G)---bilinear working edge combination treadle beginning position (position of starting working)
B1G---straight, curve working edge combination treadle beginning position (position of starting working)
B1 (E)---bilinear working edge combination treadle final position
B1E---straight, curve working edge combination treadle final position
Figure cathetus: OCt---cross the plumb bob vertical that crank revolves the heart
MN---beginning position treadle is to the pressure line of this position (crank) roller.
ACK---cross the horizon that crank revolves the heart
12345---spacing driving working edge
123---the compound active section of spacing driving working edge
Curve:
---the curve (garden arc) of the spacing driving working edge of modification drives working edge.
Figure mid point: 1-two working edge intersection points
Drive point on the 2-spacing driving limit and with the center be G
oRoller point of contact G
o' overlap
Spacing point on the 3-spacing driving limit, and with the center be G
tRoller point of contact G
t' overlap
Prolong the point that e value back is become before the spacing point on the 4-spacing driving limit
The outer end points on 5-spacing driving limit (both pedal axle centers)
G
o-upper crank roller center.B-treadle centre of gration
G
t-the next crank roller center.C-crank centre of gration
G
oThe pressure point of contact of the '-beginning position spacing driving working edge of treadle and this crank roller
G
tThe pressure point of contact of the spacing driving working edge of '-final position treadle and this crank roller
H
oHigh-order cooresponding this crank roller center of-treadle
H
oWhen '-treadle is high-order, return working edge and cooresponding this roller point of contact.
As seen from the figure: at driver train basic specification A, R, d, L, ψ, δ, r, their (basical traditional models after r ' determines, the modification working edge) the key distinction is 45 sections of the leading portions on spacing driving limit 12345, basical traditional model is the extended line of straight line 1234, modification for radius be the garden camber line (point 4 for point of contact) of R ', both two schemes had common straight line to return the limit, with compound active section (1 23) on the spacing driving limit and perimetric length thereof be 34 sections of e, the average drive line angle of the latter's 1/3 driving corner power after spacing driving limit leading portion adopts the purpose of recessed garden arc curve mainly to be the increase crank improves the driving effect.And return that limit B1 adopts with r is that the purpose of the tangent straight line in the tangent line garden of radius is to reduce treadle idle running pivot angle δ, just always steps on apart from h at treadle simultaneously
AlwaysAfter the decision, idle running Δ h is reduced, press h among this figure
Always=350 same ratio actual measurement Δ h=13, then:
(＜5% design permissible value)
And the drive line angle of the power of treadle beginning position (start bit) had both started angle γ
oActual measurement γ
o=43.5 ° (＞40 ° of design permissible values) start angle γ for the documents scheme
oMore than two times, both big startup angle, little treadle idle running is a technical solution of the present invention, improves one of reason of drive efficiency.The limit B1 that returns during treadle final position of the present invention does not as seen from the figure in addition intersect with this garden in the outside, interior envelope garden of crank roller rotation, therefore when passive the rotating up of the next crank roller, at first be that composite log along rear portion, spacing driving limit is from putting 3 through putting 2 to end points 1 rolling touch, return the limit rolling touch from 1 tangent line then, make the final position treadle not have idle running and return along garden B (radius is r).The spacing driving of treadle among figure limit is when the treadle final position, because its linear portions is vertical with plumb bob vertical ot, the two wires intersection point both had been the spacing point 3 on the spacing driving limit, and spacing point 3 is again the next crank roller G simultaneously
tPoint of contact G with the compound active section in spacing driving limit (1 23 4)
t', therefore when external force by the treadle effect at that point the time, its pressure active line must overlap with the ot line and passes through the next (crank) roller center G
t, the drive line angle γ of crank power at this moment
t=0, thus the final position of having realized treadle when making crank spacing is spacing.
In sum, advantage of the present invention is that idle running is little, it is big to start the angle, drive efficiency height, treadle are in that have again can be spacing to the next crank in limit function, and the idle running angle is zero, and do not need to establish in addition independent inhibiting device, can make the treadle synchronous interaction, realize high efficiency drive, reach laborsaving and the fast speed purpose.And simple in structure, in light weight, (the average substance of mechanism is 2 kilograms) cost is low.The present invention has kept the driving system and the parts of existing car, and (only shortened crank center apart from) also kept the speed change system and the parts of derailleur, farthest utilized mature existing car prior art.Thereby realized simple in structurely, member is few, in light weight, cost is low, inheritance is good and ride brisk labour-saving purpose.The present invention is applicable to all bicycles, comprise level scrunches and tilt to scrunch bicycle, rickshaw, and the manpower that can be used for Electrical Bicycle drives, and the speed of a motor vehicle can reach per hour 16～18 kilometers, so mileages of continuation after can obviously strengthening it and once charging, and the speed of a motor vehicle is descended, when being used for bicycle, per hour 24 kilometers of maximum speed, its normal speed of a motor vehicle can be stablized and reaches per hour 18～20 kilometers, be equivalent to the speed of a motor vehicle of Electrical Bicycle, and have that car body is light, cost is low, do not charge, the advantage of environmental protection, energy-conservation, body-building.
Five, Fa Ming technique effect
Fig. 3 be treadle basical traditional model of the present invention (straight line) working edge made every effort to merit figure, in fact it is exactly the driver train scheme drawing that the bilinear work in combination limit among Fig. 2 is formed, just the outer end points 5 of treadle among Fig. 2 after moving down, its swing garden arc is become end points outside the treadle new among Fig. 3, half garden week of the right side be divided into six sections among the figure to what the crank rotation drove, each section angle is π/6 (radian), each Along ent on its garden is 0,1,2,3,4,5,6, there is shown the roller verandah position of each point position and the treadle control position of answering with each position pair of rollers (its outer end steps and a little is respectively 0 ', 1 ', 2 ', 3 ', 4 ', 5 ', 6 ') and treadle and roller in each locational pressure operation point also both the point of contact of the two be respectively 0
o, 1
o, 2
o, 3
o, 4
o, 5
o, 6
o, crank revolves the distance of pressure active line (cross point of contact and roller center) of heart C and each position treadle and roller with e among the figure
iExpression also is respectively e
1e
2E
6, the GE line among the figure is the vertical tangent line of treadle outer end spot wobble arc, among the figure with l
iThe distance of end points and this line is respectively l outside the expression treadle position
0l
1L
6, among the figure with K
iThe point of contact i that represents each position of halving upper roller and spacing driving limit
iRevolve the wire length of heart B with treadle, and respectively with K
0, K
1, K
2, K
3, K
4, K
5, K
6Illustrate, and with l
i' expression each point of contact to the generation garden of the compound active section in spacing driving limit B (radius is r ') the tangent line of doing each corresponding point of contact 0 tangent with the generation garden
1, 1
1, 2
1, 3
1, 4
1, 5
1, 6
1Wire length, be respectively l
0', l
1' ... l
6', BQ is a horizon among the figure, and ACK was the horizon of crank center, and the oct line was the plumb bob vertical that crank revolves the heart.The rotation direction of the crank shown in this figure is a clockwise direction, M
Bent resistanceBe the running resistance square that acts on the rotary crank, direction is an anticlockwise direction.When acting on outside the treadle end points i ' time, owing to act on the M on the roller crank of i position perpendicular to executing constant force F outside ground-surface
Bent resistanceEffect, make this roller by with the point of contact O on this spacing driving limit
i, generation one acts on the supporting power N of treadle
i, its direction is pointed to point of contact i by the roller center-point
o, the limit of the spacing driving of treadle meanwhile also can produce a size and N
iEquate direction antagonistic force F in contrast
iAct on the roller, crank will overcome crank resisting moment M under this power effect
Bent resistanceRealize that rotation drives.The work beginning position that now begins to drive with treadle is that example is obtained the roller crank by the O position that is produced by permanent external force F in treadle start bit (O ') and acted on supporting power N on the treadle
oWith by N
oGeneration acts on the counter-force F on the crank
o(dotted line arrow) and ask F
iGeneral formula:
From scheming as seen, the external force that acts on the treadle has two, both F and N
o, treadle keeps balance under the combined action of this two power, respectively treadle is revolved heart B point power taking square then as two power:
(L-l
0) F-l
0' N
o=0 ... (1) in the formula: L-treadle is long
l
0The distance of outer end points (O ') of-treadle and plumb bob vertical (GE)
l
0'-point of contact (O
o) and be the point of contact (O of garden tangent line that B does on the B of garden of r ' to radius
1) the long (l of line
0'=O
oO
1) from following formula, can obtain bearing reaction N
oFor:
At right-angled triangle BO
1O
0In, ∠ BO
1O
0=90 ° of events:
(3) substitution (2) gets in the wushu:
In the formula: K
o-be point of contact (O
o) revolve the wire length (K of heart B with treadle
o=BO
o)
The compound active section in r '-spacing driving limit generates garden radius (definite value)
Because treadle is to the antagonistic force F of crank
oWith bearing reaction N
oThe opposite sign but equal magnitude event:
Then general have a formula:
Obtain crank each point place with formula (6) and act on power F on the crank
iValue after, both can obtain the crank torque M of this power to place, the each point position of crank
i, both can obtain each section of crank by it
Interior average torque
Thereby can obtain each section merit of crank
Both can obtain the treadle one way to section merit algebraic addition at last and step on the effective merit W of one way apart from h
SingleThe related parameter that has of known mechanism is: (its concrete implication is seen Fig. 2 and explanation thereof)
A=292, d=45, R=111, h=339, L=459, r '=133, and survey treadle and the relevant size of crank roller on this figure in the each point position by same ratio:
l
iFor: l
0=18.2, l
1=2.7, l
2=0.6, l
3=10, l
4=27, l
5=45.4, l
6=52.6
K
iFor: K
0=287, K
1=339, K
2=376.5, K
3=391, K
4=388, K
5=362, K
6=317
e
iFor: e
0=77, e
1=98.8, e
2=109.5, e
3=103.6, e
4=84, e
5=48, e
6=0
Be specifically to ask the merits and demerits journey below:
1, asks the treadle directed force F of roller at each place, Along ent position
i:
Application of formula (6)
The above-mentioned relevant data of substitution is tried to achieve:
F
0＝1.73F，F
1＝1.46F，F
2＝1.3F，F
3＝1.22F，F
4＝1.19F，F
5＝1.23F，F
6＝1.41F
2, ask the treadle directed force F of roller at each place, Along ent position
iCrank is revolved the active torque M of the heart
i:
Application of formula: M
i=F
iE
i(7)
E in the following formula
iBe power F
iPressure active line to the crank distance of revolving the heart (see the e of above-mentioned actual measurement
iValue), then the active torque that can be tried to achieve on the crank each point position by (7) formula is:
M
0＝133.2F，M
1＝144.2F，M
2＝142.4F，M
3＝126.4F，
M
4＝100F，M
5＝59F，M
6＝0
3, ask each section of crank
Interior average active torque
Application of formula:
The average main torque that both can try to achieve each section of crank is:
M
cp①＝138.7F，M
cp②＝143.3F，M
cp③＝134.4F，M
cp④＝113.2F，M
cp⑤＝79.5F，M
cp⑥＝29.5F
4, ask each section of crank
The merit that external force is done
Application of formula:
In the formula
Be the section corner, and represent, then can obtain the merit that external force is done in the branch section such as each crank and be with Rad:
W
①＝72.6F，W
②＝75F，W
③＝70.3F，W
④＝59.2F，W
⑤＝41.6F，W
⑥＝15.4F
5, ask the treadle one way to step on the one way total work W that does apart to crank
Single total:
Application of formula:
Then have: W
Single total=72.6F+75F+70.3F+59.2F+41.6F+15.4F=334.1F
6, ask the efficiency eta of treadle work done
w:
Application of formula:
Then the present invention adopts the work doing efficiency of bilinear limit combination to be:
The work doing efficiency that known existing car circumference steps crank is η=0.637, and then the efficient of work done of the present invention is that the multiple of existing car is:
(doubly)
As enchashment driving drive efficiency is 1, and drive efficiency then of the present invention is 1.5 times of existing car.
If establishing the power of existing car is 1, then the power of technical solution of the present invention will be 1.5 times of existing car power.If the power that has more is used for speed-raising, the speed of a motor vehicle that then can make the present invention program's bicycle is 1.2 times of existing car, both than 0.2 times of existing vehicle speed increase (both 1/5th); If the power that has more is used for when laborsaving, then comparable existing car laborsaving 1/3rd.Here it is technique effect of the present invention.(concrete proof is please referred to the 14th, 15,16 pages of the patent of invention specification sheetss of ZL991016858).
Claims (4)
1, manpower car double side swing type self limiting pedal rod driving mechanism of the present invention contains axis (1), following chain stay spider (2), assembly (3) is connected, a left side, right treadle axle or treadle cover (4,4 '), a left side, left side crank (5,5 '), a left side, right crank Xiao (6,6 '), bearing (7,7 '), roller (8,8 '), a left side, right treadle (9,9 '), a left side, right pedal (10,10 '), a left side, right reinforcing rod (11,11 '), elastic element (12,12 '), the common ground of manpower car double side swing type self limiting pedal rod driving mechanism of the present invention and documents man-power single side swing type external limiting pedal rod driving mechanism scheme is to step the oscillating type treadle (9 that revolves on the assembly that is connected (3) that the heart is located at chain stay spider (2) under the axis rear portion when going into power, 9 ') time, the working edge of foot-operated power pars infrasegmentalis in treadle, act on and be located at by bearing (7,7 ') be fixed on crank Xiao (6,6 ') on roller (8,8 '), make crank (5,5 ') rotate driving axis (1) and make the interlock of bilateral treadle, they all are when the crank center line is plumb bob vertical, beginning position by upper crank roller decision treadle, final position by the next crank roller decision treadle, and all be by the spacing of final position treadle realized, and the high position of treadle all is by the working edge of treadle tangent with it formation the in top, external envelope garden in the roller rotation, treadle (9,9 ') with the assembly (3) that is connected two kinds of connection modes are arranged all: a kind of is with the treadle axle (4 on the hole and the assembly (3) that is connected, 4 ') running-fit is connected and fixed, another kind is with the treadle on the axle and the assembly (3) that is connected, cover (4,4 ') running-fit is connected and fixed treadle pivot angle Ψ＜60 °, the working edge of treadle cuts shape and can be straight line or curve, reach constituting of the two, treadle (9,9 ') and roller (8,8 ') open type and the two kinds of connection modes of inseparable enclosed that can divide are arranged, corresponding treadle is called open type treadle and enclosed treadle, driver train is after designs fix, can the axis axle center be axle, revolution arbitrarily, thereby and match with open type or enclosed treadle, form various vertical, bicycle that level or inclination scrunch and rickshaw, the treadle idle running is always stepped on 5 percent of distance less than treadle, feature of the present invention is that the working edge of oscillating type treadle is made up of two parts that intersect, be positioned at, anterior is spacing driving limit, what be positioned at the rear portion is to return the limit, the basical traditional model of working edge is two straight lines that intersect, it is modified to straight that each working edge all can be by various combination, curve constitutes, and crank starts angle γ.=Ψ＞40 °, crank final position drive line angle γ
t=0.
2, man power cycle double side swing type self limiting pedal rod driving mechanism according to claim 1, the spacing driving limit that it is characterized in that treadle is the point of contact of this limit and roller with the contact point of upper crank roller in the treadle beginning during position, both drive points on this limit, the normal of this point is crossed the roller center, and becomes crank to start angle γ with plumb bob vertical
o, spacing driving limit when the treadle final position, with the roller contact point of the next crank be the point of contact of this limit and roller, both spacing points on this limit, the normal of this point are crossed crank center and roller center and are overlapped the drive line angle γ of crank power with plumb bob vertical
t=0, the aft terminal on spacing driving limit, the distance of the outer garden of the roller face of both two working edge intersection points and upper crank is less than 0.5 millimeter, with the distance of the outer garden of the roller of the next crank face greater than 1/3 roller diameter d, on spacing driving limit, spacing preceding, drive point after, active section before the drive point is both for driving active section, the function of the active section between drive point and the spacing point has two, existing driving function has again initially returns function, be called compound active section, during enforcement this composite log distinguished extension e value to two ends: 1＜e＜5, to guarantee that failure-free driving and spacing is arranged, in spacing driving margin site during the anterior working edge that adopts notching curve, can obviously increase behind the crank the 1/3 average drive line angle that drives corner power.
3, man power cycle double side swing type self limiting pedal rod driving mechanism according to claim 1, it is characterized in that treadle is when final position, return the outside of limit in the interior envelope garden of roller rotational trajectory, and do not intersect with it, return the limit idle running when big when what adopt, can adopt the notching curve of radius of curvature at its leading portion, help to reduce idle running more than or equal to the external envelope garden radius of roller rotational trajectory.
4, man power cycle double side swing type self limiting pedal rod driving mechanism according to claim 1, it is characterized in that treadle and roller have two kinds of connection modes, a kind of is the non-open type that is located by connecting and can divides, a kind of is the inseparable enclosed that is located by connecting, the feature of open type treadle is that the bottom of treadle both had been two working edges, the feature of enclosed treadle is that the treadle bottom is provided with the osed top circular groove, roller is that running-fit is connected with groove, roller can freely roll in groove, the top of groove both had been two working edges, the open type treadle must be at treadle (9,9 ') and reinforcing rod (11,11 ') or car body between, peripheral hardware elastic element (12,12 ') make the treadle pair roller produce elastic pressure, make treadle and roller keep the elastic compression state, the open type Elastic Contact that formation can divide connects, and the enclosed treadle then forms inseparable enclosed and is located by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100643553A CN100457536C (en) | 2004-08-18 | 2004-08-18 | Man power cycle double side swing type self limiting pedal rod driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100643553A CN100457536C (en) | 2004-08-18 | 2004-08-18 | Man power cycle double side swing type self limiting pedal rod driving mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586973A true CN1586973A (en) | 2005-03-02 |
| CN100457536C CN100457536C (en) | 2009-02-04 |
Family
ID=34603841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100643553A Expired - Fee Related CN100457536C (en) | 2004-08-18 | 2004-08-18 | Man power cycle double side swing type self limiting pedal rod driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100457536C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053699A (en) * | 2019-06-06 | 2019-07-26 | 金洪烈 | A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203548U (en) * | 1986-05-12 | 1987-12-23 | 田丰 | Bicycle with gearing-up shaft and double pedals |
| CN2106790U (en) * | 1991-03-30 | 1992-06-10 | 陈运新 | Power transmission for high-speed labour-saving cycles |
| CN2170912Y (en) * | 1993-08-06 | 1994-07-06 | 毕桂平 | Reciprocating pedal device for bicycle |
| CN2188069Y (en) * | 1993-11-23 | 1995-01-25 | 徐军 | Pedal transmission for bicycle |
| CN2559551Y (en) * | 2002-03-26 | 2003-07-09 | 黄玉成 | Foot lever type driving device for treadlemill |
-
2004
- 2004-08-18 CN CNB2004100643553A patent/CN100457536C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053699A (en) * | 2019-06-06 | 2019-07-26 | 金洪烈 | A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100457536C (en) | 2009-02-04 |
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