CN106314666B - Magnetic force boosting bicycle - Google Patents

Magnetic force boosting bicycle Download PDF

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Publication number
CN106314666B
CN106314666B CN201610718382.0A CN201610718382A CN106314666B CN 106314666 B CN106314666 B CN 106314666B CN 201610718382 A CN201610718382 A CN 201610718382A CN 106314666 B CN106314666 B CN 106314666B
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rotating shaft
energy
bicycle
energy storage
shaft
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CN106314666A (en
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张娟霞
郝梦艺
白宗耀
李晨辉
孟庆航
郭献章
马文成
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Northeastern University Qinhuangdao Branch
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Northeastern University Qinhuangdao Branch
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

The invention discloses a magnetic force-assisted bicycle, which comprises a bicycle frame body and a rear wheel, and further comprises an energy storage rotating shaft, an energy release rotating shaft and an energy storage device, wherein the energy storage rotating shaft is positioned on one side of the rear wheel, the energy release rotating shaft is positioned on the other side of the rear wheel, a transmission gear is arranged between the energy storage rotating shaft and the energy release rotating shaft and connected to one end of a winding shaft, the other end of the winding shaft is connected with a universal joint, the universal joint is fixed on the bicycle frame body, a cord is arranged on the winding shaft, one end joint of the cord is fixed on a shaft body of the winding shaft, the other end joint of the cord is connected with a winding disc, the winding disc is arranged in the energy storage device, the universal joint is connected with a reversing. The invention utilizes the magnetic force generated by the change of the distance between the ring magnets to drive the bicycle, can meet the power requirement of long-time riding, is convenient to charge, does not have the problem of battery recycling and has low manufacturing cost.

Description

Magnetic force boosting bicycle
Technical Field
The invention relates to a bicycle, in particular to a magnetic force boosting bicycle.
Background
The existing common power-assisted bicycle is an electric power-assisted bicycle, a power-assisted mode of half electric drive and half human drive is adopted, the problems that the power is insufficient, the charging is inconvenient, the battery is recycled and the like exist in the long-time riding of the power-assisted bicycle, and the price of the electric bicycle is higher.
Disclosure of Invention
The invention aims to solve the problems and provides a magnetic force-assisted bicycle. This magnetic force helping hand bicycle utilizes the produced magnetic drive bicycle of the interval change between each ring magnet, has solved the problem that electric power helping hand bicycle is not enough in the long-time riding of power, charge inconvenience, battery need retrieve and recycle.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a magnetic force helping hand bicycle, including the frame body and the rear wheel of bicycle, still include the energy storage axis of rotation, release can axis of rotation and energy memory, the energy storage axis of rotation is located one side of rear wheel, it is located the opposite side of rear wheel to release can the axis of rotation, be provided with drive gear between energy storage axis of rotation and the release can the axis of rotation, drive gear connects in the one end of spool, the other end and the universal joint of spool are connected, the universal joint is fixed in on the frame body of bicycle, be provided with the cotton rope on the spool, the one end joint of cotton rope is fixed in on the spool, the other end. The cotton rope passes through the big fixed pulley in the energy memory and gets into the hollow shaft that is closest to the entry, passes the triangle separation blade that sets up in the hollow shaft from the movable pulley that is located on the annular magnet of hollow shaft top, then bypasses the little fixed pulley of hollow shaft bottom, then is connected with remaining hollow shaft in proper order with same mode, and at last cotton rope twines on the wire reel. The wire spool is arranged in the energy storage device, the wire spool is connected with the reversing device through a steel wire rope, and the reversing device is arranged on a handlebar of the bicycle. The steel wire rope is led out from two ends of the universal shaft and connected with the reversing device arranged on the handlebar, so that the connecting shaft is controlled, the distance between the annular magnets in the energy storage box is further controlled, and the purpose of storing or releasing energy is achieved. The reversing device is used for switching the energy storage and release states of the magnetic force assisted bicycle. When the switching-over device switches over to the energy storage state, the drive gear of spool tip and the meshing of the A bevel gear of energy storage axis of rotation axle end department, the A friction pulley of energy storage axis of rotation tip leans on the rear wheel of tight bicycle this moment, the A friction pulley then when marcing through the bicycle and the effect of friction power between the rear wheel rotates, drive the energy storage axis of rotation simultaneously, the energy storage axis of rotation drives A bevel gear, A bevel gear drives the spool and rotates, thereby realize tightening up of cotton rope, after tightening up of cotton rope, can make the annular magnet who sets up on same hollow shaft be close to each other, produce magnetic force, reach the purpose of energy storage. When the reversing device is switched to an energy releasing state, the transmission gear at the end part of the winding shaft is meshed with the bevel gear B at the end part of the energy releasing rotating shaft, the cotton rope can be released simultaneously, the release of the cotton rope drives the winding shaft connected with the winding shaft to rotate, the rotation of the winding shaft drives the energy releasing rotating shaft to rotate, the friction wheel B at the shaft end of the energy releasing rotating shaft is close to the rear wheel of the bicycle, and the friction force between the friction wheel B and the rear wheel enables the rear wheel of the bicycle to rotate, so that the energy releasing purpose is achieved.
In the magnetic force-assisted bicycle, one end of the energy storage rotating shaft is provided with an a friction wheel, the other end of the energy storage rotating shaft is provided with an a bevel gear, and the a friction wheel is attached to the rear wheel. The friction wheel A is in close contact with the rear wheel of the bicycle and rotates through the friction force between the friction wheel A and the rear wheel of the bicycle. The friction wheel A is a rubber roller with patterns, and the patterns on the friction wheel A can increase the friction force with the rear wheel of the bicycle.
In the magnetic force-assisted bicycle, one end of the energy-releasing rotating shaft is provided with a friction wheel B, the other end of the energy-releasing rotating shaft is provided with a bevel gear B, and the friction wheel B is attached to the rear wheel. The friction wheel B is in close contact with the rear wheel of the bicycle and rotates through the friction force between the friction wheel B and the rear wheel of the bicycle. The friction wheel B is a rubber roller with patterns, and the patterns on the friction wheel B can increase the friction force with the rear wheel of the bicycle.
In the magnetic force-assisted bicycle, at least two hollow shafts which are arranged in parallel are arranged in the energy storage device, at least two annular magnets and a triangular separation blade which is arranged on the hollow shaft are sleeved on each hollow shaft, a movable pulley is arranged on the annular magnet at the top of each hollow shaft, a small fixed pulley is arranged below the annular magnet at the bottom of each hollow shaft, and a large fixed pulley is arranged at an inlet of the energy storage device. The triangular blocking pieces arranged on the hollow shafts are positioned between the bottom magnets and the magnets adjacent to the bottom magnets, and the triangular blocking pieces on different hollow shafts are connected through cords.
In an aforementioned magnetic force assisting bicycle, the energy storage rotating shaft is disposed in the first fixing tube, the energy release rotating shaft is disposed in the second fixing tube, and the first fixing tube and the second fixing tube are both mounted on the frame body.
In an aforementioned magnetic force assisted bicycle, bearings are disposed in the first fixing tube and the second fixing tube, the energy storage rotating shaft is disposed on the bearing of the first fixing tube, and the energy release rotating shaft is disposed on the bearing of the second fixing tube. The bearing is in clearance fit with the first fixed pipe and the second fixed pipe, and the bearing is in interference fit with the energy storage rotating shaft and the energy release rotating shaft.
In the magnetic force-assisted bicycle, the first fixing pipe and the second fixing pipe are both connected with the spring, and the spring is connected with the bicycle frame body.
The method for calculating the number of the ring magnets in the magnetic force assisted bicycle comprises the following steps of:
s100: determining the energy released by two adjacent ring magnets;
s200: determining the power of the bicycle during riding;
s300: and calculating the number of the ring magnets according to the energy released by the two adjacent ring magnets and the power of the bicycle during riding.
In the method for calculating the number of ring magnets, the magnetic force F generated by two adjacent ring magnets is calculated according to a formula F ═ Bg/4965 ^2 ^ Ag, where Bg is the magnetic induction intensity generated between two adjacent ring magnets, and Ag is the magnetic pole area;
according to the formula
Figure BDA0001089978040000021
Calculating the magnetic induction Bg generated between two adjacent ring magnets, wherein D is the thickness of the ring magnets, h is the distance between the two adjacent ring magnets, r is the equivalent radius of the ring magnets, and r is 0.25 (D) according to the formula1-D2) Calculating the equivalent radius r of the ring magnet, wherein D1Is the outer ring diameter of the ring magnet, D2Is the diameter of the inner ring of the ring magnet;
according to the formula f ═ f1+ G sin a, calculating the force f borne by the magnetic force-assisted bicycle when the bicycle goes up the slope, wherein a is the gradient of the running road section of the bicycle, and f1Resistance to riding, f10.02 ═ G, wherein G ═ G1+g2,g1For the weight of the rider, g2Is the self weight of the bicycle.
In the method for calculating the number of the ring magnets, the relationship between the magnetic force F generated by the two adjacent ring magnets and the distance h is determined according to the magnetic force F and the magnetic induction Bg generated by the two adjacent ring magnets, and the energy released by the two adjacent ring magnets is calculated according to the relationship between the magnetic force F generated by the two adjacent ring magnets and the distance.
Compared with the prior art, the bicycle is driven by the magnetic force generated by the change of the distance between the annular magnets, and the conversion of energy storage and energy release is realized by the structural combination of the winding shaft and the reversing device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the energy storage device of the present invention;
FIG. 3 is a schematic view of the construction of the spool of the present invention;
FIG. 4 is a schematic structural view of a friction wheel B of the present invention;
fig. 5 is a graph showing the relationship between the magnetic force and the distance between two adjacent ring magnets.
Reference numerals: 1-a frame body, 2-a rear wheel, 3-an energy storage rotating shaft, 4-an energy release rotating shaft, 5-an energy storage device, 6-a transmission gear, 7-a winding shaft, 8-a universal joint, 9-a rope, 10-a friction wheel, 11-a bevel gear, 12-B friction wheel, 13-B bevel gear, 14-a hollow shaft, 15-a ring magnet, 16-a movable pulley, 17-a small fixed pulley, 18-a large fixed pulley, 19-a first fixed pipe, 20-a second fixed pipe, 21-a bearing, 22-an inlet, 23-a reversing device, 24-a handlebar, 25-a spring, 26-a steel wire rope, 27-a winding disc and 28-a triangular baffle.
The invention is further described with reference to the following figures and detailed description.
Detailed Description
Example 1 of the invention: the utility model provides a magnetic force assist bicycle, frame body 1 including the bicycle, the rear wheel 2, energy storage axis of rotation 3, release can axis of rotation 4 and energy memory 5, energy storage axis of rotation 3 is located one side of rear wheel 2, release can axis of rotation 4 is located the opposite side of rear wheel 2, be provided with drive gear 6 between energy storage axis of rotation 3 and the release can axis of rotation 4, drive gear 6 is connected in the one end of spool 7, the other end and the universal joint 8 of spool 7 are connected, universal joint 8 is fixed in on the frame body 1 of bicycle, be provided with cotton rope 9 on the spool 7, the one end joint of cotton rope 9 is fixed in on the axis body of spool 7, the other end joint is connected with wire reel 27, wire reel 27 sets up in energy memory 5. The universal joint 8 is connected to a reversing device 23 via a cable 26, the reversing device 23 being arranged on a handlebar 24 of the bicycle. One end of the energy storage rotating shaft 3 is provided with an A friction wheel 10, the other end of the energy storage rotating shaft 3 is provided with an A bevel gear 11, and the A friction wheel 10 is attached to the rear wheel 2. One end of the energy release rotating shaft 4 is provided with a B friction wheel 12, the other end of the energy release rotating shaft 4 is provided with a B bevel gear 13, and the B friction wheel 12 is attached to the rear wheel 2.
Example 2 of the invention: the utility model provides a magnetic force assist bicycle, frame body 1 and rear wheel 2 including the bicycle, still include energy storage axis of rotation 3, release can axis of rotation 4 and energy memory 5, energy storage axis of rotation 3 is located one side of rear wheel 2, release can axis of rotation 4 is located the opposite side of rear wheel 2, be provided with drive gear 6 between energy storage axis of rotation 3 and the release can axis of rotation 4, drive gear 6 is connected in the one end of spool 7, the other end and the universal joint 8 of spool 7 are connected, universal joint 8 is fixed in on the frame body 1 of bicycle, be provided with cotton rope 9 on the spool 7, the one end joint of cotton rope 9 is fixed in on the axis body of spool 7, the other end joint is connected with wire reel 27, wire reel 27 sets up in energy memory 5. The universal joint 8 is connected to a reversing device 23 via a cable 26, the reversing device 23 being arranged on a handlebar 24 of the bicycle. One end of the energy storage rotating shaft 3 is provided with an A friction wheel 10, the other end of the energy storage rotating shaft 3 is provided with an A bevel gear 11, and the A friction wheel 10 is attached to the rear wheel 2. One end of the energy release rotating shaft 4 is provided with a B friction wheel 12, the other end of the energy release rotating shaft 4 is provided with a B bevel gear 13, and the B friction wheel 12 is attached to the rear wheel 2. At least two hollow shafts 14 arranged in parallel and triangular blocking pieces 28 arranged on the hollow shafts 14 are arranged in the energy storage device 5, at least two annular magnets 15 are sleeved on each hollow shaft 14, a movable pulley 16 is arranged on the annular magnet 15 positioned at the top of each hollow shaft 14, and the movable pulley 16 is arranged on one side of the bottom surface of the annular magnet 15 at the topmost part of the hollow shaft 14. A small fixed pulley 17 is arranged below the annular magnet 15 at the bottom of each hollow shaft 14, and a large fixed pulley 18 is arranged at the inlet 22 of the energy storage device 5.
Example 3 of the invention: the utility model provides a magnetic force assist bicycle, frame body 1 and rear wheel 2 including the bicycle, still include energy storage axis of rotation 3, release can axis of rotation 4 and energy memory 5, energy storage axis of rotation 3 is located one side of rear wheel 2, release can axis of rotation 4 is located the opposite side of rear wheel 2, be provided with drive gear 6 between energy storage axis of rotation 3 and the release can axis of rotation 4, drive gear 6 is connected in the one end of spool 7, the other end and the universal joint 8 of spool 7 are connected, universal joint 8 is fixed in on the frame body 1 of bicycle, be provided with cotton rope 9 on the spool 7, the one end joint of cotton rope 9 is fixed in on the axis body of spool 7, the other end joint is connected with wire reel 27, wire reel 27 sets up in energy memory 5. The universal joint 8 is connected to a reversing device 23 via a cable 26, the reversing device 23 being arranged on a handlebar 24 of the bicycle. One end of the energy storage rotating shaft 3 is provided with an A friction wheel 10, the other end of the energy storage rotating shaft 3 is provided with an A bevel gear 11, and the A friction wheel 10 is attached to the rear wheel 2. One end of the energy release rotating shaft 4 is provided with a B friction wheel 12, the other end of the energy release rotating shaft 4 is provided with a B bevel gear 13, and the B friction wheel 12 is attached to the rear wheel 2. At least two hollow shafts 14 arranged in parallel and triangular blocking pieces 28 arranged on the hollow shafts 14 are arranged in the energy storage device 5, at least two annular magnets 15 are sleeved on each hollow shaft 14, a movable pulley 16 is arranged on the annular magnet 15 positioned at the top of each hollow shaft 14, and the movable pulley 16 is arranged on one side of the bottom surface of the annular magnet 15 at the topmost part of the hollow shaft 14. A small fixed pulley 17 is arranged below the annular magnet 15 at the bottom of each hollow shaft 14, and a large fixed pulley 18 is arranged at the inlet 22 of the energy storage device 5. The energy storage rotating shaft 3 is arranged in the first fixing pipe 19, the energy release rotating shaft 4 is arranged in the second fixing pipe 20, and the first fixing pipe 19 and the second fixing pipe 20 are both arranged on the frame body 1. Bearings 21 are arranged in the first fixed pipe 19 and the second fixed pipe 20, the energy storage rotating shaft 3 is arranged on the bearing 21 of the first fixed pipe 19, and the energy release rotating shaft 4 is arranged on the bearing 21 of the second fixed pipe 20. The first fixing pipe 19 and the second fixing pipe 20 are both connected with a spring 25, and the spring 25 is connected with the frame body 1.
Calculating the number of the ring magnets 15:
first, the magnetic force generated between two adjacent ring magnets 15 and the storable magnetic energy are calculated: assuming the dimension D of the ring magnet 151Is phi 20mm, D2Phi 10mm, D5 mm, the ring magnet 15 is equivalent to a cylindrical magnet, i.e., the cylindrical magnet r is 0.25 × (D)1-D2) 0.25 × 2.5mm, where r is the equivalent radius of the ring magnet 15;
secondly, calculate the magnetic induction on two adjacent cylindrical magnet axes, calculate the magnetic induction Bg on the axis of two adjacent cylindrical magnets promptly: according to the formula
Figure BDA0001089978040000051
Wherein r is 2.5mm, d is 5 mm;
then, the magnetic force between two adjacent cylindrical magnets, i.e., the magnetic force between two adjacent ring magnets 15, is calculated: according to the formula F ═ (Bg/4965) ^2 Ag;
the relationship between the magnetic force and the distance obtained by the above calculation is shown in fig. 5, and thus the energy released by two adjacent cylindrical magnets is approximately 3J, that is, the energy released by two adjacent ring magnets 15 is approximately 3J.
Finally, the number of ring magnets 15 required is calculated: assuming that the speed on ascending is 1m/s and the weight of human body is g160kg, bicycle weight g215kg, if the bicycle keeps constant motion, the slope is 10 degrees, and the resistance f1G × 0.02, the power is: p ═ F1v according to the formula F ═ F1The power when riding uphill can be calculated to be approximately 41J, which is 0.02G + Gsin10 °.
Thus, it is possible to design 15 magnets and divide them into three groups, where each group can release 12J of energy.
The working principle of the invention is as follows:
during energy storage, the reversing device 23 at the bicycle handle bar 24 is switched to an energy storage mode, the direction of the winding shaft 7 is adjusted through the universal joint 8 connected with the steel wire rope 26, the transmission gear 6 at the end part of the winding shaft 7 is meshed with the bevel gear A11 at the shaft end part of the energy storage rotating shaft 3, the energy storage rotating shaft 3 is compressed under the action of a force, the friction wheel A10 at the other shaft end part of the energy storage rotating shaft 3 is abutted against the rear wheel 2 of the bicycle, the rear wheel 2 of the bicycle rotates in the forward process of the bicycle, the friction wheel A10 rotates with the rear wheel 2 under the action of friction force, the friction wheel A10 rotates to drive the energy storage rotating shaft 3 to rotate, the winding shaft 7 is driven to rotate through the meshing transmission of the bevel gear A11 and the transmission gear 6, the wire rope 9 is tightened by the winding shaft 7, and the distance between the annular magnets 15 on the hollow shafts 14 in the energy storage device, the interaction force between the ring magnets 15 is increased, thereby realizing energy storage using magnetic force.
Then the reversing device 23 is restored to a state of neither storing energy nor releasing energy, the winding shaft 7 is positioned in the middle position between the energy storing rotating shaft 3 and the energy releasing rotating shaft 4, namely the transmission gear 6 is not connected with the A bevel gear 11 nor the B bevel gear 13, and the triangular blocking piece 28 on the hollow shaft 14 bounces to block the annular magnet at the tail end of the hollow shaft 14, so that the annular magnet 15 is prevented from slipping, and the whole energy storing process is realized.
When releasing energy, the reversing device 23 at the handle bar 24 is switched to an energy releasing mode, at the same time, the cord 9 is tightened, the direction of the winding shaft 7 is adjusted through the universal joint 8 connected with the steel wire rope 26, the transmission gear 6 at the end part of the winding shaft 7 is meshed with the bevel gear B13 at the shaft end of the energy releasing rotating shaft 4, the spring 25 is compressed after the energy releasing rotating shaft 4 is stressed, the friction wheel B12 at the other shaft end of the energy releasing rotating shaft 4 is abutted against the rear wheel 2 of the bicycle, meanwhile, the triangular blocking piece 28 is pulled by the cord 9 to be abutted against the hollow shaft 14 to move, after the adjacent annular magnets 15 on the same hollow shaft 14 are subjected to mutual acting force, the distance between the annular magnets is increased, the cord 9 is released to drive the winding shaft 7 to rotate, after the winding shaft 7 rotates, the energy releasing rotating shaft 4 is driven to rotate through the meshing transmission of the transmission gear 6 and, thereby drive wheel 2 and rotate, and then realize magnetic force helping hand, reduced the consumption of people's energy when riding.
When the functions of magnetic energy storage and power assistance are not used, the reversing device 23 is switched to the original state, the winding shaft 7 is positioned in the middle of the energy storage rotating shaft 3 and the energy release rotating shaft 4, the winding shaft is not meshed with the energy storage rotating shaft 3 or the energy release rotating shaft 4, the energy storage rotating shaft 3 and the energy release rotating shaft 4 are far away from the rear wheel 2 of the bicycle under the action of the elastic force of the spring 25, and the bicycle in the state is the riding state of a common bicycle.

Claims (9)

1. A magnetic force-assisted bicycle comprises a bicycle frame body (1) and a rear wheel (2), and is characterized by further comprising an energy storage rotating shaft (3), an energy release rotating shaft (4) and an energy storage device (5), wherein the energy storage rotating shaft (3) is positioned on one side of the rear wheel (2), the energy release rotating shaft (4) is positioned on the other side of the rear wheel (2), a transmission gear (6) is arranged between the energy storage rotating shaft (3) and the energy release rotating shaft (4), the transmission gear (6) is connected to one end of a winding shaft (7), the other end of the winding shaft (7) is connected with a universal joint (8), the universal joint (8) is fixed on the bicycle frame body (1), a thread rope (9) is arranged on the winding shaft (7), one end joint of the thread rope (9) is fixed on the shaft body of the winding shaft (7), and the other end joint is connected with a winding disc (27), wire reel (27) set up in energy memory (5), universal joint (8) are connected with switching-over device (23) through wire rope (26), switching-over device (23) set up on handlebar (24) of bicycle, be equipped with hollow shaft (14) of two at least parallel arrangement in energy memory (5) and set up triangle separation blade (28) on hollow shaft (14), the cover is equipped with two at least ring magnet (15) on every hollow shaft (14), be equipped with movable pulley (16) on ring magnet (15) at every hollow shaft (14) top, the below of ring magnet (15) of every hollow shaft (14) bottom is equipped with little fixed pulley (17), the entry (22) department of energy memory (5) is equipped with big fixed pulley (18).
2. A magnetically assisted bicycle according to claim 1, characterized in that one end of the energy storage rotating shaft (3) is provided with an a friction wheel (10), the other end of the energy storage rotating shaft (3) is provided with an a bevel gear (11), and the a friction wheel (10) is attached to the rear wheel (2).
3. The magnetic force-assisted bicycle according to claim 2, wherein one end of the energy-releasing rotating shaft (4) is provided with a B friction wheel (12), the other end of the energy-releasing rotating shaft (4) is provided with a B bevel gear (13), and the B friction wheel (12) is attached to the rear wheel (2).
4. A magnetically assisted bicycle according to claim 3, wherein the energy storage rotation shaft (3) is disposed in a first fixed tube (19), the energy release rotation shaft (4) is disposed in a second fixed tube (20), and both the first fixed tube (19) and the second fixed tube (20) are mounted on the frame body (1).
5. A magnetically assisted bicycle according to claim 4, characterized in that bearings (21) are provided in both the first fixed tube (19) and the second fixed tube (20), the energy storage rotating shaft (3) is provided on the bearing (21) of the first fixed tube (19), and the energy release rotating shaft (4) is provided on the bearing (21) of the second fixed tube (20).
6. A magnetically assisted bicycle according to claim 5, characterized in that the first (19) and second (20) fixed tubes are connected to a spring (25), the spring (25) being connected to the frame body (1).
7. The method for counting the number of ring magnets according to any one of claims 1 to 6, comprising the steps of:
s100, determining the energy released by two adjacent ring magnets (15);
s200, determining the power of the bicycle during riding;
s300: and calculating the number of the ring magnets (15) according to the energy released by the two adjacent ring magnets (15) and the power of the bicycle during riding.
8. The method of claim 7, wherein the magnetic force F generated by two adjacent ring magnets (15) is calculated according to the formula F ═ (Bg/4965) ^2 × Ag, where Bg is the magnetic induction generated between two adjacent ring magnets (15) and Ag is the magnetic pole area;
according to the formula
Figure FDA0002325210630000021
Calculating the magnetic induction Bg generated between two adjacent ring magnets (15), wherein D is the thickness of the ring magnets (15), h is the distance between the two adjacent ring magnets (15), r is the equivalent radius of the ring magnets (15), and r is 0.25 (D) according to the formula1-D2) Calculating the equivalent radius r of the ring magnet (15), where D1Is the outer ring diameter of the ring magnet (15), D2Is the inner ring diameter of the ring magnet (15);
according to the formula f ═ f1+ G sina, calculating the force f borne by the magnetic force-assisted bicycle when the bicycle goes up the slope, wherein a is the gradient of the running road section of the bicycle, and f1For resistance during riding, f10.02 ═ G, wherein G ═ G1+g2,g1For the weight of the rider, g2Is the self weight of the bicycle.
9. The method for calculating the number of ring magnets according to claim 8, wherein the relationship between the magnetic force F generated by two adjacent ring magnets (15) and the distance h is determined according to the magnetic force F generated by two adjacent ring magnets (15) and the magnetic induction Bg, and the energy released by two adjacent ring magnets (15) is calculated according to the relationship between the magnetic force F generated by two adjacent ring magnets (15) and the distance.
CN201610718382.0A 2016-08-24 2016-08-24 Magnetic force boosting bicycle Active CN106314666B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2352440Y (en) * 1998-06-19 1999-12-08 何庆伶 Magnetic force-aid bicycle
AU2002367852A1 (en) * 2002-03-29 2003-10-20 Wavecrest Laboratories, Llc Rotary electric motor having concentric annular members
CN101599729A (en) * 2009-04-13 2009-12-09 陈方利 Magnetic power assist
CN202063238U (en) * 2011-04-21 2011-12-07 江苏磁源动力科技有限公司 Three-force combination power device of moped
CN204452763U (en) * 2015-02-11 2015-07-08 陈唯明 Bicycle magnetic assisted device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2352440Y (en) * 1998-06-19 1999-12-08 何庆伶 Magnetic force-aid bicycle
AU2002367852A1 (en) * 2002-03-29 2003-10-20 Wavecrest Laboratories, Llc Rotary electric motor having concentric annular members
CN101599729A (en) * 2009-04-13 2009-12-09 陈方利 Magnetic power assist
CN202063238U (en) * 2011-04-21 2011-12-07 江苏磁源动力科技有限公司 Three-force combination power device of moped
CN204452763U (en) * 2015-02-11 2015-07-08 陈唯明 Bicycle magnetic assisted device

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