CN102837792A - High-efficiency driving mechanism of bicycle - Google Patents
High-efficiency driving mechanism of bicycle Download PDFInfo
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- CN102837792A CN102837792A CN2012103461195A CN201210346119A CN102837792A CN 102837792 A CN102837792 A CN 102837792A CN 2012103461195 A CN2012103461195 A CN 2012103461195A CN 201210346119 A CN201210346119 A CN 201210346119A CN 102837792 A CN102837792 A CN 102837792A
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- belt
- wheel
- leather belt
- ratchet
- sprocket
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Abstract
The invention discloses a high-efficiency driving mechanism of a bicycle. The high-efficiency driving mechanism comprises a left belt, a right belt and a middle belt, wherein the middle belt is connected between a middle upper reversing wheel and a middle lower reversing wheel; the left belt is connected between left upper and lower reversing wheels and a left belt pulley; the right belt is connected between right upper and lower reversing wheels and a right belt pulley; the upper end of a left pedal is simultaneously connected to the left belt and the middle belt; the upper end of a right pedal is simultaneously connected with the right belt and the middle belt; the left belt pulley and the right belt pulley are movably sleeved on a rear wheel shaft; outer side faces of the left belt pulley and the right belt pulley are provided with a left driving chain disc and a right driving chain disc respectively; a left driven chain disc and a right driven chain disc are movably sleeved on a chain wheel shaft; a front left pawl is arranged on the left driven chain disc and is matched with a front left ratchet which is fixedly sleeved on the chain wheel shaft; the right driven chain disc is provided with a front right pawl which is matched with a front right ratchet which is fixedly sleeved on the chain wheel shaft; and the front left ratchet and the front right ratchet are in bilateral symmetry. Since the left pedal and the right pedal only do rectilinear motion, pedal force can act on a part of maximum moment all the time to obtain maximum torque output.
Description
Technical field
The present invention relates to mechanical drive mechanism, especially bicycle driving mechanism.
Background technology
Existing bicycle driving mechanism comprises pedal, drive sprocket, chain and flywheel etc.; Flywheel is fixed on the wheel shaft of trailing wheel; Drive sprocket is contained on the sprocket shaft (bicycle middle shaft); Chain is around between drive sprocket and the flywheel, and the power of pedaling of pin leans on parts such as pedal (being equivalent to crank), drive sprocket, chain, flywheel to be delivered on the trailing wheel, moves ahead thereby drive bicycle.
Because the driver is sitting in the pedal that tramps with one's feet on the seat cushion; Pedal moves in a circle; The pedaling force direction and can not guarantee all the time of pin perpendicular to the arm of force, under the effect of identical pedal power, normally to be in the moment that is obtained when equal height position and pedal power (suppose that bicycle running is on level road) vertically downward maximum when left and right sides pedal; And to be in another moment when being in extreme lower position of extreme higher position almost nil when one in the pedal of the left and right sides, and mechanical efficiency does not reach maximization.Sometimes in order to improve power, people can habitually adjust the force direction of pedaling of pin with the rotation of step tread, if when inertia is little, pin will feel painstaking and awkward when front lower place or the back lower place are pedaled.In addition, because pedal is to move in a circle, consider the actuation range limitation of pin when being seated by bike, the circular motion radius of pedal can not be done too greatly, and this also is to cause one of not high reason of common non-variable speed bicycle speed.
Summary of the invention
The purpose of this invention is to provide a kind ofly under identical pedal power condition, the moment of torsion that acts on the drive sprocket is consistent, and efficient is higher, and makes things convenient for the driver to come bicycle driven high efficiency drive mechanism with the pedal power of single direction.
In order to realize above-mentioned technical purpose; The technical scheme that the present invention adopts is: a kind of bicycle high efficiency drive mechanism; Comprise that left foot is pedaled, right pedal, drive sprocket, driven sprocket, left leather belt, right leather belt and mid-belt, drive sprocket is solidly set on the sprocket wheel axle head, driven sprocket is solidly set on the trailing wheel axle head; Be connected through chain drive-belt between drive sprocket and the driven sprocket; The back ratchet is housed on the driven sprocket, and this back ratchet matches with back ratchet on being solidly set on hind axle, mid-belt be connected in mid-on reverse wheel and in deposit between the reverse wheel; Left leather belt is connected in the left side and goes up under reverse wheel, the left side between the reverse wheel and left leather belt wheel, and right leather belt is connected between reverse wheel and right leather belt are taken turns under reverse wheel on the right side, the right side; Mid-go up reverse wheel, in deposit reverse wheel and be assemblied in respectively on the first switching-over wheel shaft, the second switching-over wheel shaft; On the left side on reverse wheel and the right side reverse wheel be assemblied in respectively the 3rd switching-over wheel shaft about end, under the left side under reverse wheel and the right side reverse wheel be assemblied in respectively the 4th switching-over wheel shaft about hold; The upper end that left foot is pedaled is connected on left leather belt and the mid-belt simultaneously, and the upper end of right pedal is connected on right leather belt and the mid-belt simultaneously; Left leather belt wheel, right leather belt wheel kink are on hind axle and lay respectively at the both sides of trailing wheel; The lateral surface of left leather belt wheel, right leather belt wheel is fixed with a left side initiatively chain drum, right initiatively chain drum respectively; Correspondence kink on sprocket shaft has left driven chain drum, right driven chain drum; A left side initiatively is connected left chain between chain drum and the left driven chain drum, is connected right chain between right active chain drum and the right driven chain drum; On the driven chain drum in a left side preceding left pawl is installed; Before left pawl match with preceding left ratchet on being solidly set on sprocket shaft; Right ratchet before being equipped with on the right driven chain drum, preceding right ratchet matches preceding left ratchet and preceding right ratchet left-right symmetric with preceding right ratchet on being solidly set on sprocket shaft.
When stepping on left foot with left foot and pedal, left foot is pedaled and is driven left leather belt and mid-belt movement, and it is up to drive right pedal in the mid-belt movement process; Left leather belt drives the left leather belt wheel and rotates; And then the left side active chain drum on the left leather belt wheel drives left driven chain drum rotation through left chain; The driven chain drum in a left side drives sprocket shaft through preceding left pawl and preceding left ratchet and rotates, and sprocket shaft drives trailing wheel through drive sprocket, chain drive-belt, driven sprocket, back ratchet and back ratchet and rotates, and bicycle moves ahead; Right ratchet rotates with sprocket shaft before this moment, but preceding right ratchet does not constitute obstruction to preceding right ratchet.When left foot was pedaled the arrival bottom dead point, right pedal arrived top dead point, at this moment steps on right pedal with right crus of diaphragm, and right pedal drives right leather belt and mid-belt movement, drove left foot in the mid-belt movement process and pedaled up; Right leather belt drives the right leather belt wheel and rotates; And then the right initiatively chain drum on the right leather belt wheel drives right driven chain drum rotation through right chain; Right driven chain drum drives sprocket shaft through preceding right ratchet and preceding right ratchet and rotates, and sprocket shaft drives trailing wheel through drive sprocket, chain drive-belt, driven sprocket, back ratchet and back ratchet and rotates, and bicycle moves ahead; Left ratchet rotates with sprocket shaft before this moment, but preceding left pawl does not constitute obstruction to preceding left ratchet.Like this, left foot is pedaled replacing with right pedal and is moved downward, left leather belt wheel, right leather belt wheel, a left side initiatively relay-type ground such as chain drum, right initiatively chain drum with transmission of power to hind axle, the power that makes the bicycle acquisition continue to move ahead.
In the present invention, because left and right sides pedal has only straight-line motion, thereby can make pedal power all the time all perpendicular to its acting force arm; The output of acquisition torque peak; Also be convenient under standing state, to pedal bicycle and move ahead, for laborsaving and do not influence pedal operation, left and right sides belt pulley can be done greatlyyer.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that the B of Fig. 1 is to view.
Fig. 4 is the C-C cutaway view (omitting left and right sides pedal) of Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is explained further details.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; The present invention provides a kind of bicycle high efficiency drive mechanism; Contain that left foot pedals 1, right pedal 2, drive sprocket 3, driven sprocket 4, left leather belt 5, right leather belt 6 and mid-belt 7, drive sprocket 3 is solidly set on sprocket shaft 8 ends, driven sprocket 4 is solidly set on hind axle 9 ends; Be connected through chain drive-belt 10 between drive sprocket 3 and the driven sprocket 4; Back ratchet 11 is housed on the driven sprocket 4, and this back ratchet 11 matches with back ratchet 12 on being solidly set on hind axle 9, mid-belt 7 be connected in mid-on reverse wheel 13 and in deposit between the reverse wheel 14; Left leather belt 5 is connected in the left side and goes up under reverse wheel 15, the left side between the reverse wheel 16 and left leather belt wheel 17, and right leather belt 6 is connected on the right side under reverse wheel 18, the right side reverse wheel 19 and right leather belt and takes turns between 20; Mid-go up reverse wheel 13, in deposit reverse wheel 14 and be assemblied in respectively on the first switching-over wheel shaft 21, the second switching-over wheel shaft 22; On the left side on reverse wheel 15 and the right side reverse wheel 18 be assemblied in respectively the 3rd switching-over wheel shaft 23 about end, under the left side under reverse wheel 16 and the right side reverse wheel 19 be assemblied in respectively the 4th switching-over wheel shaft 24 about end; Left foot is pedaled 1 upper end and is connected simultaneously on left leather belt 5 and the mid-belt 7, and the upper end of right pedal 2 is connected on right leather belt 6 and the mid-belt 7 simultaneously; Left leather belt wheel 17, right leather belt are taken turns 20 kinks on hind axle 9 and lay respectively at the both sides of trailing wheel 25; The lateral surface of left leather belt wheel 17, right leather belt wheel 20 is fixed with a left side initiatively chain drum 26, right initiatively chain drum 27 respectively; Corresponding on sprocket shaft 8 kink left driven chain drum 28, right driven chain drum 29 are arranged; A left side initiatively is connected left chain 30 between chain drum 26 and the left driven chain drum 28, is connected right chain 31 between right side active chain drum 27 and the right driven chain drum 29; Left pawl 32 before being equipped with on the driven chain drum 28 in a left side; Before left pawl 32 match with preceding left ratchet 33 on being solidly set on sprocket shaft 8; Right ratchet 34 before being equipped with on the right driven chain drum 29; Before right ratchet 34 match preceding left ratchet 33 and preceding right ratchet 35 left-right symmetric with preceding right ratchet 35 on being solidly set on sprocket shaft 8.
The first switching-over wheel shaft 21, the second switching-over wheel shaft 22 are fixed on the vehicle frame and are vertical with sprocket shaft 8, and the 3rd switching-over wheel shaft 23, the 4th switching-over wheel shaft 24 are fixed on the vehicle frame and are parallel with sprocket shaft 8.Left foot is pedaled 1 upper end and is connected simultaneously on left leather belt 5 and the mid-belt 7 through rivet, and the upper end of right pedal 2 is connected on right leather belt 6 and the mid-belt 7 through rivet simultaneously.It is fixing also can to adopt alternate manner to connect.
Principle of work: when stepping on left foot with left foot and pedal 1, left foot is pedaled 1 and is driven left leather belt 5 and mid-belt 7 motions, and it is up to drive right pedal 2 in mid-belt 7 motion processes; Left leather belt 5 drives left leather belt wheel 17 and rotates; And then the left side active chain drum 26 on the left leather belt wheel 17 rotates through the left driven chain drum 28 of left chain 30 drives; The driven chain drum 28 in a left side drives sprocket shaft 8 through preceding left pawl 32 with preceding left ratchet 33 and rotates, and sprocket shaft 8 drives trailing wheel through drive sprocket 3, chain drive-belt 10, driven sprocket 4, back ratchet 11 and back ratchet 12 and rotates, and bicycle moves ahead; Right ratchet 35 rotates with sprocket shaft 8 before this moment, but preceding right ratchet 34 does not constitute obstruction to preceding right ratchet 35.Pedal 1 when arriving bottom dead point when left foot, right pedal 2 arrives top dead points, at this moment steps on right pedal 2 with right crus of diaphragm, and right pedal 2 drives right leather belts 6 and mid-belt 7 motions, drives left foot in mid-belt 7 motion processes and pedals 1 up; Right leather belt 6 drives right leather belt wheel 20 and rotates; And then the right initiatively chain drum 27 on the right leather belt wheel 20 rotates through the right driven chain drum 29 of right chain 31 drives; Right driven chain drum 29 drives sprocket shaft 8 through preceding right ratchet 34 with preceding right ratchet 35 and rotates, and sprocket shaft 8 drives trailing wheel through drive sprocket 3, chain drive-belt 10, driven sprocket 4, back ratchet 11 and back ratchet 12 and rotates, and bicycle moves ahead; Left ratchet 33 rotates with sprocket shaft 8 before this moment, but preceding left pawl 32 does not constitute obstruction to preceding left ratchet 33.Like this, left foot is pedaled 1 and is being replaced and move downward with right pedal 2, left leather belt wheel 17, right leather belt wheel 20, a left side initiatively relay-type ground such as chain drum 26, right initiatively chain drum 27 with transmission of power to hind axle 9, the power that makes the bicycle acquisition continue to move ahead.
Adopt the existing power transmission structure of existing bicycle from drive sprocket 3, chain drive-belt 10, driven sprocket 4 to back ratchet 11 and back ratchet 12.
Because left foot pedals 1, right pedal 2 has only straight-line motion, thereby can make pedal power among the present invention, promptly act on the maximum torque place, obtain torque peak output, also be convenient under standing state, to pedal bicycle and move ahead all the time perpendicular to the arm of force.Left leather belt 5, right leather belt 6 and mid-belt 7 also can adopt chain, corresponding mid-go up reverse wheel 13, in deposit on reverse wheel 14, the left side under reverse wheel 15, the left side on reverse wheel 16, left leather belt wheel 17, the right side that reverse wheel 19, right leather belt wheel 20 etc. adopt sprocket wheels under reverse wheel 18, the right side.
Claims (4)
1. bicycle high efficiency drive mechanism; Comprise that left foot is pedaled, right pedal, drive sprocket and driven sprocket; Drive sprocket is solidly set on the sprocket wheel axle head, and driven sprocket is solidly set on the trailing wheel axle head, is connected through chain drive-belt between drive sprocket and the driven sprocket; The back ratchet is housed on the driven sprocket; This back ratchet matches with back ratchet on being solidly set on hind axle, it is characterized in that: also include left leather belt, right leather belt and mid-belt, mid-belt be connected in mid-go up reverse wheel and in deposit between the reverse wheel; Left leather belt is connected in the left side and goes up under reverse wheel, the left side between the reverse wheel and left leather belt wheel, and right leather belt is connected between reverse wheel and right leather belt are taken turns under reverse wheel on the right side, the right side; Mid-go up reverse wheel, in deposit reverse wheel and be assemblied in respectively on the first switching-over wheel shaft, the second switching-over wheel shaft; On the left side on reverse wheel and the right side reverse wheel be assemblied in respectively the 3rd switching-over wheel shaft about end, under the left side under reverse wheel and the right side reverse wheel be assemblied in respectively the 4th switching-over wheel shaft about hold; The upper end that left foot is pedaled is connected on left leather belt and the mid-belt simultaneously, and the upper end of right pedal is connected on right leather belt and the mid-belt simultaneously; Left leather belt wheel, right leather belt wheel kink are on hind axle and lay respectively at the both sides of trailing wheel; The lateral surface of left leather belt wheel, right leather belt wheel is fixed with a left side initiatively chain drum, right initiatively chain drum respectively; Correspondence kink on sprocket shaft has left driven chain drum, right driven chain drum; A left side initiatively is connected left chain between chain drum and the left driven chain drum, is connected right chain between right active chain drum and the right driven chain drum; On the driven chain drum in a left side preceding left pawl is installed; Before left pawl match with preceding left ratchet on being solidly set on sprocket shaft; Right ratchet before being equipped with on the right driven chain drum, preceding right ratchet matches preceding left ratchet and preceding right ratchet left-right symmetric with preceding right ratchet on being solidly set on sprocket shaft.
2. bicycle high efficiency drive according to claim 1 mechanism, it is characterized in that: left leather belt is parallel to each other between part between the reverse wheel under reverse wheel on the right side and the right side and mid-belt at part between the reverse wheel and right leather belt under reverse wheel on the left side and the left side.
3. bicycle high efficiency drive according to claim 1 mechanism is characterized in that: the first switching-over wheel shaft, the second switching-over wheel shaft are fixed on the vehicle frame and are vertical with sprocket shaft, and the 3rd switching-over wheel shaft, the 4th switching-over wheel shaft are fixed on the vehicle frame and are parallel with sprocket shaft.
4. bicycle high efficiency drive according to claim 1 mechanism, it is characterized in that: the upper end that left foot is pedaled is connected on left leather belt and the mid-belt through rivet simultaneously, and the upper end of right pedal is connected on right leather belt and the mid-belt through rivet simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103461195A CN102837792A (en) | 2012-09-18 | 2012-09-18 | High-efficiency driving mechanism of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103461195A CN102837792A (en) | 2012-09-18 | 2012-09-18 | High-efficiency driving mechanism of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102837792A true CN102837792A (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103461195A Pending CN102837792A (en) | 2012-09-18 | 2012-09-18 | High-efficiency driving mechanism of bicycle |
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| Country | Link |
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| CN (1) | CN102837792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871836A (en) * | 2015-05-07 | 2015-09-02 | 浙江理工大学 | Double ratchet wheel type anti-revolution rotation seedling clamping device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996022911A1 (en) * | 1995-01-27 | 1996-08-01 | David John Christiansen | A drive mechanism for a manually powered vehicle |
| CN1370938A (en) * | 2001-02-27 | 2002-09-25 | 吴正德 | Translation-rotation interchanging driving mechanism |
| CN2573365Y (en) * | 2002-10-21 | 2003-09-17 | 牛润锋 | Pedal device of rider driven wheeled vehicle |
| CN201863979U (en) * | 2010-03-29 | 2011-06-15 | 雷迅之 | Linear reciprocating type pedaling system of bicycle |
-
2012
- 2012-09-18 CN CN2012103461195A patent/CN102837792A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996022911A1 (en) * | 1995-01-27 | 1996-08-01 | David John Christiansen | A drive mechanism for a manually powered vehicle |
| CN1370938A (en) * | 2001-02-27 | 2002-09-25 | 吴正德 | Translation-rotation interchanging driving mechanism |
| CN2573365Y (en) * | 2002-10-21 | 2003-09-17 | 牛润锋 | Pedal device of rider driven wheeled vehicle |
| CN201863979U (en) * | 2010-03-29 | 2011-06-15 | 雷迅之 | Linear reciprocating type pedaling system of bicycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871836A (en) * | 2015-05-07 | 2015-09-02 | 浙江理工大学 | Double ratchet wheel type anti-revolution rotation seedling clamping device |
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Application publication date: 20121226 |