CN110053699A - A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw - Google Patents
A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw Download PDFInfo
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- CN110053699A CN110053699A CN201910489740.9A CN201910489740A CN110053699A CN 110053699 A CN110053699 A CN 110053699A CN 201910489740 A CN201910489740 A CN 201910489740A CN 110053699 A CN110053699 A CN 110053699A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M1/00—Rider propulsion of wheeled vehicles
- B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
- B62M1/26—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by rotary cranks combined with reciprocating levers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
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Abstract
The present invention relates to driving gear of manpower vehicle, in particular to four bar driving mechanisms of a kind of difunctional pedal rod driven of rickshaw.Including right treadle, right connecting rod, left treadle, sprocket wheel, right crank, axis, left crank, left connecting rod, left pedestal and right pedestal, its middle sprocket is sheathed on axis and rotates synchronously with axis, the both ends of axis are connect with left crank and right crank respectively, left pedestal and right pedestal are fixed on the left and right sides of bicycle body, the rear end of left treadle and right treadle is hinged with left pedestal and right pedestal respectively, front end is respectively equipped with left pedal and right pedal, left treadle is hinged by left connecting rod and the end of left crank, and right treadle is hinged by the end of right connecting rod and right crank.The mode of having an effect that the present invention uses vertically shaking to step, pivot angle is less than 90 degree, and crank starting angle is big, no dead point, and product can be suitable for all human powered vehicles, and reaching makes manpower propose effect 50%, realizes the high efficiency drive of bicycle.
Description
Technical field
The present invention relates to driving gear of manpower vehicle, in particular to four bar driving machines of a kind of difunctional pedal rod driven of rickshaw
Structure.
Background technique
Changing existing vehicle driving method, is improving in the patent of four bar driving mechanisms of drive efficiency, patent of invention number
" four-bar mechanisms of the double L shape pedal rod drivens of rickshaw " Patent project of ZL99101685.8, publication number CN1137832C, it suffices to say that
It is good one of the project of a Technical comparing, it passes through the setting of double L shape treadles, and crank is made to start angle γоIncrease, it is maximum reachable
25 degree or so, and use lesser treadle pivot angle (ψ≤60 degree) and improve effective benefit of manpower to drive bicycle to advance
With rate, the better effects that output power is 1.5 times of existing vehicle are reached, by actual use, it laborsaving and proposed effect function and obtain
It is affirmed to part is filled.But meanwhile find this technology while having the above advantages, existing great Hyperlink trouble is, with making
With the extension of time, in the axis shelves-axis bowl-using general low-grade ordinary bicycle when husky frame ball bearing, bottom bracket axle and
Its bearing, the abrasion aggravation of treadle axle bearing, service life is substantially reduced, therefore this technology is not particularly suited for ordinary bicycle,
And it is only applicable to the high-grade bicycle that less axis has rolling bearing, and make the reduction of its service life.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of four bar driving machines of the difunctional pedal rod driven of rickshaw
Structure, to realize the high efficiency drive of rickshaw.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw, including right treadle, right connecting rod, left treadle, right song
Handle, sprocket wheel, axis, left crank, left connecting rod, left pedestal and right pedestal, middle sprocket are sheathed on axis and turn with axis is synchronous
Dynamic, the both ends of the axis are connected with left crank and right crank, and the left pedestal and right pedestal are fixed on a left side for bicycle body
The rear end of right side, the left treadle and right treadle is hinged with the left pedestal and the right pedestal respectively, and front end is respectively equipped with a left side
Pedal and right pedal, one end of the left connecting rod and the outer end of the left crank are hinged, and the other end and the left treadle are hinged, institute
The one end for stating right connecting rod and the outer end of the right crank are hinged, and the other end and the right treadle are hinged.
Left treadle axis and right treadle axis, the left treadle and the right side are respectively equipped on the left pedestal and the right pedestal
The rear end of treadle by bearing respectively with the left treadle axis and the right treadle axis connection, the left treadle and the right treadle
On, the position that the heart is rocking bar radius is being revolved away from it, is being respectively equipped with left rocker pins and right rocker pins, the left connecting rod and the right company
The other end of bar by bearing respectively with left rocker pins and right rocking bar pin connection.
The center of the left treadle axis, left rocker pins and left pedal is located in a straight line, and left treadle axis shakes with a left side
The center of lever pin is away from for left rocking bar radius；The center of the right treadle axis, right rocker pins and right pedal is located in a straight line, and
And the center of right treadle axis and right rocker pins is away from for right rocking bar radius.
The left treadle axis and the right treadle axis are all set in the back upper place of the axis.
When the left treadle or the right treadle are located at starting position, the right treadle or the left treadle are located at final position.
When the left treadle is located at final position, the axis collinear of the left connecting rod, left crank and right crank；When the right side is stepped on
When bar is located at final position, the axis collinear of the right connecting rod, right crank and left crank.
Pivot angle ψ≤90 ° of the left treadle and the right treadle.
The angle between angle and the right connecting rod and the right crank between the left connecting rod and the left crank is
Drive line angle, drive line angle γ of the left and right crank in start bit0≥45°。
The left pedestal and right pedestal are each attached between the lower chain stay of bicycle and standpipe, the axis be located at it is described under
Chain stay and the standpipe intersect on node.
The sprocket wheel is fixed on the inside of the right crank and is integrally formed with the right crank, and the sprocket wheel passes through chain
Item and rear flywheel are sequentially connected.
The invention has the advantages and beneficial effects that: the present invention be by use that vertically shaking steps have an effect in a manner of to implement
Example and propose, but mechanism is as a whole, can change treadle with the rotation and displacement for the rack being fixed on vehicle frame
The design in the direction and position that step, to realize that product of the present invention can be suitable for: by manpower " two sides reciprocating swing type
Have an effect be changed into axis rotation driving " all manual machines and vehicle, reaching mentions the effective rate of utilization of manpower than existing vehicle
It is high by 50%, it realizes the high efficiency drive of bicycle, can be used to existing vehicle transformation, and can be used for manufacturing and designing the purpose of new car.
The present invention provides it is a kind of step on, the difunctional treadle that rocking bar is integrated, pivot angle is less than or equal to 90 degree, and crank
Start the compression connecting rod that angle is greater than 45 degree, it is not only dead without starting come the four bar driving mechanisms for pushing Middle axle crank to rotate
Point, and drive efficiency is significantly improved, in crank final position, the link centerline of the position is conllinear with crank center line,
Its drive line angle is zero degree.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of driving mechanism in the present invention；
Fig. 3 is the force diagram of four-bar mechanism in the present invention；
Thrust when Fig. 4 is the work of the invention in crank 57 degree of angular regions of starting and crank conllinear with connecting rod leads figure.
In figure: 1 is lower chain stay, and 2 be right pedal, and 3 be right treadle, and 4 be right connecting rod, and 5 be right crank-pin, and 6 be left pedal, 7
It is left rocker pins for left treadle, 8,9 be right crank, and 10 be sprocket wheel, and 11 be axis, and 12 be left crank, and 13 be left crank-pin, and 14 are
Left connecting rod, 15 be left pedestal, and 15 ' be right pedestal, and 16 be left treadle axis, and 16 ' right treadle axis, 17 be right rocker pins, and 18 be chain,
19 be flywheel, and 20 be saddle, and 21 be standpipe, γоStart angle for crank, ψ is the pivot angle of treadle.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
As shown in Figure 1, a kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw provided by the invention, including the right side are stepped on
Bar 3, right connecting rod 4, left treadle 7, right crank 9, sprocket wheel 10, axis 11, left crank 12, left connecting rod 14, left pedestal 15 and right pedestal
15 ', middle sprocket 10 is sheathed on axis 11 and rotates synchronously with axis 11, and the both ends of axis 11 are symmetrically connected with left crank
12 and right crank 9, left pedestal 15 and right pedestal 15 ' are fixed on the left and right sides of bicycle body, after left treadle 7 and right treadle 3
End is hinged with left pedestal 15 and right pedestal 15 ' respectively, and front end is respectively equipped with left pedal 6 and right pedal 2.One end of left connecting rod 14 with
The outer end of left crank 12 is hinged, and the other end and left treadle 7 are hinged, and left treadle 7 presses left crank 12 by left connecting rod 14, to drive
Dynamic axis 11 and sprocket wheel 10 rotate, while right treadle 3 and left treadle 7 are realized and linked；One end of right connecting rod 4 is outer with right crank 9
End is hinged, and the other end and right treadle 3 are hinged, and right treadle 3 presses right crank 9 by right connecting rod 4, to drive axis 11 and sprocket wheel
10 rotations, while left treadle 7 and right treadle 3 are realized and are linked.
Further, left pedestal 15 and right pedestal 15 ' are above respectively equipped with left treadle axis 16 and right treadle axis 16 ', left treadle 7
It is connect respectively with left treadle axis 16 and right treadle axis 16 ' with the rear end of right treadle 3 by bearing, left treadle 7 and right treadle 3,
Revolve the position that heart is rocking bar radius away from it and be respectively equipped with left rocker pins 8 and right rocker pins 17, left connecting rod 14 and right connecting rod 4 it is another
End is connect with left rocker pins 8 and right rocker pins 17 respectively by bearing.The end of left crank 12 and right crank 9 is respectively equipped with left song
The through-hole of one end of handle pin 13 and right crank-pin 5, left connecting rod 14 and right connecting rod 4 by bearing respectively with left crank-pin 13 and right song
Handle pin 5 connects.The center of left treadle axis 16, left rocker pins 8 and left pedal 6 is located in a straight line, and left treadle axis 16 with
The center of left rocker pins 8 is away from for left rocking bar radius；The center of right treadle axis 16 ', right rocker pins 17 and right pedal 2 is located at one directly
On line, and the center of right treadle axis 16 ' and right rocker pins 17 is away from for right rocking bar radius.
Left pedestal 15 and right pedestal 15 ' are each attached between the lower chain stay 1 of bicycle and standpipe 21, during lower chain stay 1 is located at
Between axis 11 and rear flywheel 19, the upper end of standpipe 21 is equipped with saddle 20.Axis 11 is located at intersecting for lower chain stay 1 and standpipe 21
On node B, left treadle axis 16 and right treadle axis 16 ' are all set in the back upper place of axis 11, as shown in Figure 2.Sprocket wheel 10 is fixed on
It the inside of right crank 9 and is integrally formed with right crank 9, sprocket wheel 10 is sequentially connected by chain 18 and rear flywheel 19, forms closing
Chain conveyer.
As shown in Fig. 2, right treadle 3 or left treadle 7 are located at final position when left treadle 7 or right treadle 3 are located at starting position, it is left
Pivot angle ψ≤90 ° of treadle 7 and right treadle 3.Between angle and right connecting rod 4 and right crank 9 between left connecting rod 14 and left crank 12
Angle be drive line angle, crank is crank starting angle γ in the drive line angle of start bit0,γ0≥45°。
When left treadle 7 is located at final position, left connecting rod 14, left crank 12 and right crank 9 are conllinear, and drive line angle is 0 °；Work as the right side
When treadle 3 is located at final position, right connecting rod 4, right crank 9 and left crank 12 are conllinear, and drive line angle is 0 °.
Rack 6, left treadle 7, right treadle 3, left connecting rod 14 and right connecting rod 4, and by the left and right crank 12 at 11 both ends of axis,
9 two packet sizes of composition, four bar driving mechanisms that are identical, and being linked by axis 11.Rack is the fixed link in four bar driving mechanisms
AB, wherein A is the rotation center of the treadle axis 16,16 ' of left and right, and B is the rotation center of axis 11.Rack AB can be according to reality
It needs, by the rotation and displacement to AB, to change the design in direction and position that treadle steps, to realize that " two sides are reciprocal
Swing type have an effect is changed into axis rotation driving " all manual machines and vehicle.
The present invention provides it is a kind of step on, the difunctional treadle that rocking bar is integrated, pivot angle is less than or equal to 90 degree, and crank
Start the compression connecting rod that angle is greater than 45 degree, come the four bar driving mechanisms for pushing Middle axle crank to rotate, the present invention is to use
Mode that vertically shaking stepped have an effect is embodiment and proposes, but mechanism is as a whole, can be with being fixed on vehicle frame
On rack AB rotation and displacement, and change the design in direction and position that treadle steps, to realize product of the present invention energy
Enough be suitable for: all manual machines and vehicle by manpower " two sides reciprocating swing type, which is had an effect, is changed into the rotation of axis " reach
To making the effective rate of utilization of manpower improve 50% than existing vehicle, the high efficiency drive of bicycle is realized, can be used to existing vehicle transformation,
It can be used for manufacturing and designing the purpose of new car again.
The present invention is changed to step Double side swinging type up and down by manpower bilateral crank rotation driving method is stepped by manpower
Left treadle 7 and right treadle 3, the left connecting rod 14 and right connecting rod 4 for bearing the bilateral of compression drive axis 11 to rotate, and make two sides
Left treadle 7 and right treadle 3 realize linkage.Left treadle 7 and right treadle 3 be characterized in, left treadle axis 16 thereon, left rocker pins 8
And the center of left pedal 6 is located in a straight line, the center of right treadle axis 16 ', right rocker pins 17 and right pedal 2 is located at one directly
On line, and the centre distance etc. of the centre distance and right treadle axis 16 ' and right rocker pins 17 of left treadle axis 16 and left rocker pins 8
In rocking bar radius.The drive line angle of left crank 12 and right crank 9 in start bit is used simultaneously, i.e. crank starts angle γ0It is greater than
45 degree, not only without starting dead point, and significantly improve drive efficiency.In crank final position, the connecting rod center of the position
Line is conllinear with crank center line, and drive line angle is zero degree, and the pivot angle ψ of multi-functional treadle is less than or equal to 90 degree.
The present invention is that one kind is stepped on and (shaken) bar and is integrated, and treadle includes rocking bar, the i.e. part of the round end of treadle, has and steps on
The dual function of bar and rocking bar, difunctional left treadle 7 and right treadle 3 are part of actively having an effect, it changes the circle of existing bicycle
Week steps, but uses the power the way of initiating stepped up and down, i.e., has an effect when stepping downwards, when returning up, joined by treadle
Motivation structure provides power, returns to final position treadle passively, it is to shorten crank center away from outside it on the basis of existing vehicle
Stomidium sets crank-pin, and is mutually twisted by left linkages with the left rocker pin being located on the difunctional left and right treadle in vehicle frame base
It connects, realizes that treadle links and axis drive, treadle are by being fixed on lower chain stay and standpipe " bottom by stepping repeatedly for treadle
Treadle axis on seat " is fixed on the car body, and " pedestal " and the solderable fixation of lower chain stay and standpipe, it is also possible to which bolt installation is solid
It is fixed.
The technical characteristic of product of the present invention is the crank starting angle γ for determining its drive efficiency heightоSuper large, (general four
For linkage in 15 degree, documents are in 25 degree) it must be pointed out starting angle γоBe limited by all many conditions rather than can be with
Meaning setting, the present invention is greater than 45 degree, and the starting angle of embodiment actual use is 68 degree, not only without transmission dead point, and
In the range of treadle starts to 57 degree of corner, the efficiency of manpower work done is 2.1 times of documents, while proposing effect,
Documents are solved when crank is conllinear with connecting rod, the pulling force of connecting rod has reached 13 times or more of the pedal force F of people, and this reality
Applying example is only 2.1F.
The present invention can be rotated by 90 ° counterclockwise the rack AB in driving mechanism structure figure (Fig. 2) using A as the center of circle, and
When being moved to the axis axle center of 11 axle center B of its axis and recumbent bicycle and overlapping, by the mutual alignment relation in Fig. 2, each phase is set
The related part closed can be realized and step before and after treadle, technological transformation of the present invention to recumbent bicycle be completed, so as to complete this hair
The bright application extension on recumbent bicycle, makes this technology more have vitality.So the present invention is to be stepped using vertically shaking
Mode of having an effect be embodiment and propose that but mechanism is as a whole, can be with the rotation for the rack AB being fixed on vehicle frame
Turn and be displaced, and change the design in direction and position that treadle steps, to realize that product of the present invention can be suitable for: relying on people
All manual machines and vehicle of the power " two sides reciprocating swing type, which is had an effect, is changed into the rotation of axis ".
The present invention realizes that structure is simple, component under conditions of remaining transmission and the speed change system of standard bicycle
Less, the advantages that light weight and cost is low, variable-ratio, inheritance is good and effect is good, compared with existing vehicle: power increases by 1/2, firmly
Speed can be improved 1/5 when identical, laborsaving l/3 when speed ratio is identical.The present invention is suitable for the transformation of various bicycles and human powered vehicle
And the manpower driving of manufacture and electric bicycle, it is addition suitable for pedicab, water cycle, perambulator, body building self running
The treadle self-powered of vehicle recumbent bicycle and wheel-chair application etc..
As shown in Fig. 2, increasing downward arrow on right pedal 2, and there is the label of F, indicate that the power size of pedaling of people is F,
Direction be it is downward, separately on the right side of crank shaft core, added rotation arrow and n label, indicate crank rotate to be clockwise
Direction.Axis 11 is centrally disposed in lower chainstay 1 and the cross one another node B of standpipe 21, and left treadle axis 16 and right treadle
Axis 16 ' is then located on left pedestal 15 and right pedestal 15 ', and pedestal is then weldingly fixed on lower chain stay 1 and standpipe 21, this is a
The axis of ordinary bicycle is set to moving down, the upper left side at heart B (i.e. the center of axis 11) is revolved, if the double function in shuttle-type left and right
The left treadle 7 and right treadle 3 of energy, their rotation center are A, pivot angle ψ.Left treadle 7 has arrived at lower final position, right at this time
The center for 14 its both ends of the hole of left connecting rod answered is e and d, and e is the center of the left rocker pins 8 on left treadle 7, and d is left crank
The center of left crank-pin 13 on 12, from figure: ed and crank center line MM point-blank, i.e. left connecting rod 14 and bent
Handle 12 and right 9 three of crank are conllinear in final position, and right treadle 3 at this time is in start bit, corresponding right connecting rod 4, and two
The center of stomidium is f and c, and f is the center of the right rocker pins 17 on right treadle 3, and c is the right crank-pin 5 on right crank 9
Center can then make right connecting rod 4 that right crank 9 be pushed to rotate if at this moment stepping right treadle 3 forward, from figure: right connecting rod 4 with
The angle of right crank 9, i.e. crank gearing angle are γ, and the drive line angle of start bit is to start angle γ0, (the γ of the present embodiment0=
68 degree).
Fig. 3 be difunctional pedal rod driven four-bar mechanism embodiment and its force diagram, for and patent No. ZL99101685.8,
The patent of invention (hereinafter referred to as documents) of the four-bar mechanism of the double L shape pedal rod drivens of entitled rickshaw compares,
In order to the setting of drawing it is convenient for the sake of, the driving mechanism in this figure does not press operating position setting, but treadle and crank
Rotation heart line AB work is rotated by 90 ° counterclockwise, and the specific size of embodiment is as follows in figure:
A=125；R=85；R'=139；ɑ=145；H=350；L=313；γо=68 degree (length unit is millimeter) have
It is as follows to close meaning of parameters:
A- treadle and crank rotation the heart away from；R- throw of crankshaft；R'- rocking bar radius；ɑ-connecting rod two end hole center away from；L- treadle
It is long；γ-connecting rod and crank angle；β-treadle and connecting rod angle；ψ-treadle pivot angle；γоCrank starts angle；F- rides constant force and hangs down
It is straight downward；H is effectively to step on journey.
For convenient for being compared to each other, now directly reference calculation formula and its result of the documents in relation to existing vehicle is as follows:
(1) the formula (2-2) of documents rotates a circle the formula of institute's work done, directly reference result for existing vehicle:
Wо=700F [kgmm]
(2) the time that it rotates a circle is set as tоSecond, then its input power is formula (2-3):
(3) it is formula (2-4) that existing vehicle, which steps total input work made by one week:
WO is total=1099F [kgmm]
(4) then the speed that steps of existing vehicle is formula (2-5):
Vо=1099/tо[mm/ seconds]
The embodiment of the present invention:
(1) " product of the function made by gravity equal to weight G and whole story position height difference h, the road Er Yuqi are had according to mechanics theorem
Diameter is unrelated ", it is considered that the swing type one way work done of foot-operated constant force F perpendicular to the ground, with gravity work production the case where is completely the same,
Have:
WIt is single=Fh=350F [kgmm]-is (1)
(2) now ask the treadle of the present embodiment to step one and step time t used in whole (2h)Completely newlyIt (sets and steps on speed with existing vehicle
It is identical):
(3) complete (double) journey total works of the present embodiment are as follows:
WIt is new total=2L ψ
=2 × 313 × 68/57.3
=743F [kgmm]-is (3)
(4) the power of the present embodiment are as follows:
PNewly=WIt is new total÷tO is new
=743F ÷ 0.68tо
=1093F/tо[kgmm/ seconds]-(4)
That is the power of the present embodiment is the multiple of existing vehicle power: n=1093F ÷ 700F=1.56 (again)
It is easy analysis in Fig. 3, the connecting rod of the four-bar mechanism under stress is disconnected, thus mechanism
It is divided into two, left end is by the treadle of orientation constant force F and the effect of-N power vertically downward, and right end is by circumferential resistance QResistanceWith N power
The Middle axle crank of effect, power is reached right end crank by connecting rod by left end, therefore left end is output end, and right end is input terminal, N power
Effect be driving crank rotation, in order to find out the size of N power, see the treadle stress of left end first: when with treadle rotation heart A be
Axis has A point power taking square:
FLCp bar=NR'sin β [kgmm] is (1)
L in formulaCp barFor average treadle length, the torque of it and the product formation of external force F (being mutually perpendicular to), FLCp barWith torque
MCp barIt is equivalent, and R'sin β be then treadle revolve heart A to connecting rod central force (fc) line vertical range, so having:
MCp bar=FLCp bar[kg·mm]⑵
And MCp barThe average torque of treadle, the product of it and corner ψ, equal to treadle one way function namely:
WIt is single=MCp bar ×ψ[kg·mm]⑶
So treadle average torque MCp bar:
Then thrust:
Formula is (5): NBar=2.12F/sin β is exactly to seek connecting rod compression N in this project embodimentBarGeneral formulae, can in formula
See the compression N that connecting rod is receivedBarIt is inversely proportional with the sinusoidal sin β at the angle β, so we can smoothly find out using this formula
The stress condition of connecting rod everywhere.
We seek the compression N of connecting rod belowBarTo crank torque MIt is bentInfluence, from the right end (output end) of Fig. 3:
At the outer hinge c of crank, there are two power effect, one be connecting rod thrust NBar, the other is the circumferential resistance Q of crankResistance, bent
Handle then keeps balance under the action of the two above power, seeks the thrust N of connecting rod belowBarGenerated crank torque MIt is bent:
Formula (6) is the compression that the present embodiment seeks connecting rod, when acting on Middle axle crank, the crank torque M of generationIt is bent, very
Obvious MIt is bentSize it is directly proportional to sin γ, and be inversely proportional with sin β, thus we can use this formula, find out crank and exist
Crank torque M when any positionIt is bent。
Attached drawing 4 be ask the present embodiment crank start 57 degree of angular regions in work, and crank with connecting rod pushing away when conllinear
Power leads figure, and the treadle rotation heart is A in Fig. 4, and it is B that crank, which revolves the heart, and the beginning position of treadle is with 010'A indicates that the beginning position of crank is 0B, and
0'0 indicates connecting rod when beginning position；When final position, treadle t1T'A indicates that crank indicates that connecting rod is indicated with t't with tB；Crank circle
Line 1B, 2B, 3B of 1,2,3 three point and crank rotation heart B on week respectively indicate three different locations of crank, 1B expressions
Crank has turned through 21 degree of angles since start bit, and 2B indicates to have turned 19 degree again, and 3B indicates to turn over 17 degree again, at three in figure
It marks " 21 °, 19 °, 17 ° ", three angles add up to 57 degree, the purpose for the arrangement is that in order to turn with documents in identical crank
It is compared and sets on Angle Position.In Fig. 4,11、21、31When respectively indicating crank and successively rotating 21 °, 19 °, 17 ° of angles
The position of treadle end；1', 2', 3' respectively indicate the position of rocker pins when crank successively rotates 21 °, 19 °, 17 ° of angles；β0、
β1、β2、β3Respectively indicate treadle and connecting rod angle when initial position and crank successively rotate 21 °, 19 °, 17 ° of angles；γ0、γ1、
γ2、γ3Respectively indicate the angle of connecting rod and crank when initial position and crank successively rotate 21 °, 19 °, 17 ° of angles.See right
Having " such as with Φ from number above the 13rd, 14,15,16 rows than file page 13iIndicate that section angle, subscript i indicate segment number
And survey then: Φ1=21 °, Φ2=19 °, Φ3=17 ° ", from this, the crank section partition and documents of this Fig. 4 is complete
Exactly the same, the related parameter in figure is identical as meaning in attached drawing 3, now by the value for surveying β and γ in Fig. 4 are as follows: β0=64 degree, β1=
75 degree, β2=84 degree, β3=89 degree, γ0=111 degree, γ1=93 degree, γ2=76 degree, γ3=62 degree.
Directly below with the formula (6) in Fig. 3:
Crank 0,1,2,3 everybody when angle beta, after angle γ value substitutes into respectively in formula (6), obtain:
MSong 0=187F
MSong 1=186F
MSong 2=176F
MSong 3=159F
The crank average torque of section (1):
MBent (1) cp=(187+186)/2=186.5F
The crank average torque of section (2):
MBent (2) cp=(186+176)/2=181F
The crank average torque of section (3):
MBent (3) cp=(176+159)/2=167.5F
Then ∑ MIt is bent=535F
The crank average torque function of section (1):
W⑴=186.5F × 21/57.3=68F
The crank average torque function of section (2):
W⑵=181F × 19/57.3=60F
The crank average torque function of section (3):
W⑶=167.5F × 17/57.3=50F
Then ∑ WNewly=178F
Have from documents page 15 lower number the 6th row to the 10th row:
" it at this moment can apply formula (3-10) Wi=Mi×Фi, crank is found out in the input work W of each sectioniCalculated result
It is as follows: W1=21.59F, W2=28.96F, W3=32.21F ┉ ┉ "
Then documents: ∑ WIt is right=W1+W2+W3=21.59F+28.96F+32.21F=83F
Then the embodiment of the present invention is the multiple of documents institute work done in above-mentioned three sections (in 57 degree of angles) are as follows: 178F
÷ 83F=2.14 times, from this as it can be seen that the present embodiment due to use 2.7 times bigger than documents (documents for 25 degree,
Embodiment is 68 degree) starting angle the reason of, in the range of making 57 degree of angles after actuation, made function is made by documents
2.14 times of function.
Documents are seen again in treadle final position, and crank is conllinear with connecting rod, the pulling force T of connecting rod14=13.6F is (see comparison text
The 7th row of number after part page 14), and the connecting rod thrust of the present embodiment:
NBar=2.12F/sin β=2.12F/sin64 degree=2.4F [kg]
Wherein: βt=64 degree.
It was found from this: connecting rod thrust N of the embodiment of the present invention in treadle final positionBarOnly documents connecting rod pulling force
: 2.4F/13.6F=18%, i.e., less than 1/5, and insufficient documents be averaged connecting rod pulling force half (see documents, the
Several 6-11 rows after page 14), therefore the present embodiment solves documents since in treadle final position, mechanism stress is too big, and
Damage axis, the big problem of treadle axis and its bearing.
In summary the most apparent advantage of the present embodiment is:
1. power is 1.5 times of existing vehicle；
2. the starting angle of super large, no dead point, and drive efficiency can be increased substantially near start bit；
3. mechanism stress is smaller (2F) in treadle final position, it is therefore prevented that damage parts improve mechanism service life, benefit
In popularization.
The present invention is to be changed to step Double side swinging type up and down by manpower bilateral crank rotation driving method is stepped by manpower
Difunctional left and right treadle, and the bilateral of the receiving compression by being hinged respectively with difunctional treadle and axis or so crank is left
Right connecting rod drives middle shaft rotation, and the difunctional treadle of two sides is made to realize linkage.The present invention is to be had an effect using what is stepped up and down
Mode is embodiment and proposes that but mechanism is as a whole, can with the rotation and displacement for the rack being fixed on vehicle frame,
And change the design in direction and position that treadle steps, to realize that product of the present invention can be suitable for " two sides reciprocating swing type
Have an effect and be changed into the rotation of axis " all manual machines and vehicle.By on bicycle, manual machine and human powered vehicle, if
The driving mechanism of the utility model is set, them can be made more laborsaving efficiently, and bicycle, manual machine and human powered vehicle are set
Meter, can reach the optimum Working of manpower by the adjustment of the angles and positions of rack, to realize that a variety of applications are opened up
Exhibition, makes the technology of the present invention more have vitality.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within any modification, equivalent replacement, improvement, extension etc., be all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw, which is characterized in that including right treadle (3), right connecting rod
(4), left treadle (7), right crank (9), sprocket wheel (10), axis (11), left crank (12), left connecting rod (14), left pedestal (15) and
Right pedestal (15 '), middle sprocket (10) are sheathed on axis (11) and rotate synchronously with axis (11), the axis (11)
Both ends are connected with left crank (12) and right crank (9), and the left pedestal (15) and right pedestal (15 ') are fixed on bicycle body
It is cut with scissors respectively with the left pedestal (15) and the right pedestal (15 ') rear end of left and right sides, the left treadle (7) and right treadle (3)
It connects, front end is respectively equipped with left pedal (6) and right pedal (2), and one end of the left connecting rod (14) is outer with the left crank (12)
End is hinged, and hingedly, the outer end of one end of the right connecting rod (4) and the right crank (9) is cut with scissors for the other end and the left treadle (7)
It connects, the other end and the right treadle (3) are hinged.
2. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 1, which is characterized in that the left side
Left treadle axis (16) and right treadle axis (16 '), the left treadle (7) are respectively equipped on pedestal (15) and the right pedestal (15 ')
It is connect respectively with the left treadle axis (16) and the right treadle axis (16 ') with the rear end of the right treadle (3) by bearing, institute
State on left treadle (7) and the right treadle (3), away from its revolve heart be rocking bar radius position, be respectively equipped with left rocker pins (8) and
The other end of right rocker pins (17), the left connecting rod (14) and the right connecting rod (4) by bearing respectively with left rocker pins (8) and
Right rocker pins (17) connection.
3. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 2, which is characterized in that the left side
The center of treadle axis (16), left rocker pins (8) and left pedal (6) is located in a straight line, and left treadle axis (16) shakes with a left side
The center of lever pin (8) is away from for left rocking bar radius；The centre bit of the right treadle axis (16 '), right rocker pins (17) and right pedal (2)
In on straight line, and the center of right treadle axis (16 ') and right rocker pins (17) is away from for right rocking bar radius.
4. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 2, which is characterized in that the left side
Treadle axis (16) and the right treadle axis (16 ') are all set in the back upper place of the axis (11).
5. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 1, which is characterized in that the left side
When treadle (7) or the right treadle (3) are located at starting position, the right treadle (3) or the left treadle (7) are located at final position.
6. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 5, which is characterized in that when described
When left treadle (7) is located at final position, the left connecting rod (14), left crank (12) and right crank (9) axis collinear；When the right side is stepped on
When bar (3) is located at final position, the right connecting rod (4), right crank (9) and left crank (12) axis collinear.
7. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 5, which is characterized in that the left side
Pivot angle ψ≤90 ° of treadle (7) and the right treadle (3).
8. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 1, which is characterized in that the left side
The angle between angle and the right connecting rod (4) and the right crank (9) between connecting rod (14) and the left crank (12) is
Drive line angle, drive line angle γ of the left and right crank in start bit0≥45°。
9. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 1, which is characterized in that the left side
Pedestal (15) and right pedestal (15 ') are each attached between the lower chain stay (1) of bicycle and standpipe (21), and the axis (11) is located at
The lower chain stay (1) and the standpipe (21) intersect on node.
10. four bar driving mechanisms of the difunctional pedal rod driven of rickshaw according to claim 1, which is characterized in that described
Sprocket wheel (10) is fixed on the inside of the right crank (9) and is integrally formed with the right crank (9), and the sprocket wheel (10) passes through
Chain (18) and rear flywheel (19) are sequentially connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489740.9A CN110053699A (en) | 2019-06-06 | 2019-06-06 | A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489740.9A CN110053699A (en) | 2019-06-06 | 2019-06-06 | A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw |
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| Publication Number | Publication Date |
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| CN110053699A true CN110053699A (en) | 2019-07-26 |
Family
ID=67325626
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|---|---|---|---|
| CN201910489740.9A Pending CN110053699A (en) | 2019-06-06 | 2019-06-06 | A kind of four bar driving mechanisms of the difunctional pedal rod driven of rickshaw |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135044A (en) * | 2020-01-16 | 2020-05-12 | 上海荣泰健康科技股份有限公司 | Crank rocker type massager and massage method |
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