CN204473053U - Double helical gear driving bicycle - Google Patents
Double helical gear driving bicycle Download PDFInfo
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- CN204473053U CN204473053U CN201520156156.9U CN201520156156U CN204473053U CN 204473053 U CN204473053 U CN 204473053U CN 201520156156 U CN201520156156 U CN 201520156156U CN 204473053 U CN204473053 U CN 204473053U
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Abstract
The utility model announces a kind of double helical gear driving bicycle, belongs to technical field of bicycles.Comprise handlebar, vehicle frame, vehicle seat, trailing wheel and front-wheel; Trailing wheel comprises circular wheel body, and wheel body inner ring surface has whole circle herringbone tooth, and wheel body two sides have symmetrical circular groove, and wheel body outer ring surface is provided with tire; Be provided with two groups of bearings in circular groove, what often group bearing was symmetrical is arranged in the circular groove of both sides respectively, and the inner ring of bearing is connected with vehicle frame; The herringbone tooth of trailing wheel is provided with the chain wheel gear engaged with herringbone tooth, and chain wheel gear is connected with vehicle frame; Chain wheel gear is provided with foot-operated.The maximum feature of the utility model uses gear transmission, its driving efficiency is high, simple and compact for structure, cost is low, and gear transmission technology is ripe, and this will alleviate the labour intensity of staff, larger economic benefit can be brought for company, therefore there are wide market outlook.
Description
Technical field
The utility model relates to technical field of bicycles, specifically a kind of double helical gear driving bicycle.
Background technology
Although existing stage self car type class is a lot, mostly for connecting formula transmission.As long as and the company's of employing formula transmission, the thing followed just cannot be avoided to connect the shortcoming of formula transmission.Common linked transmission bicycle driving efficiency is low, complex structure.Safeguard inconvenient, joint structure is unreliable, etc. feature.And existing non-linked transmission bicycle is also mostly axle-driven bicycle, or front pedal-type non-chain bicycle.
Axle-driven bicycle; Axle-driven bicycle carrys out transmission mainly through gear and axle.Although be not linked transmission, totally still have the shortcoming of linked transmission, driving efficiency is low.Structure is not compact.Although it is not avoid the features such as the chain releasing of linked transmission, still laborsaving.
Front pedal-type non-chain bicycle; Front pedal-type non-chain bicycle, it is made up of vehicle frame, front vehicle wheel, rear wheel, pedal clutch, connecting rod, actuator etc.It is characterized in that: do not need to adopt the driving parts such as sprocket wheel, chain, flywheel, cashing has the circular movement of bicycle to be that front pedal-type is upper and lower to step, alleviate the amount of exercise in human body knee joint, condyle joint.Pedal clutch adopts Bevel Gear Drive, and actuator adopts planet gear transmission, makes the moving velocity of bicycle and the reliability of transmission be obtained for very large raising.Not wiping the extension bottom of s trouser leg when riding, safety and comfort, is a kind of desirable vehicle.But the structure of footboard clutches is comparatively complicated, work unreliable.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of double helical gear driving bicycle.
Gear has transmitting ratio high, and structure is reliable, easy to maintenance, the features such as reliable operation.And gear is as a kind of type of drive be most widely used in mechanical drive, technical maturity is reliable, convenient acquisition.Due to gear-driven various advantages, the utility model gear replaces traditional chain gear, the stable type of drive of this tradition of gear transmission is used on bicycle.Thus reach the object of a series of shortcoming of the company's of solution formula transmission.Allowing rides more stablizes with laborsaving, avoids the puzzlement that chain releasing brings.
The utility model is by the following technical programs: a kind of double helical gear driving bicycle, comprises handlebar, vehicle frame, vehicle seat and the trailing wheel be connected on vehicle frame and front-wheel; Described trailing wheel comprises circular wheel body, and described wheel body inner ring surface has whole circle herringbone tooth, and wheel body two sides have symmetrical circular groove, and wheel body outer ring surface is provided with tire; Be provided with two groups of bearings in described circular groove, what often group bearing was symmetrical is arranged in the circular groove of both sides respectively, and the inner ring of described bearing is connected with vehicle frame; The herringbone tooth of taking turns in the rear is provided with the chain wheel gear engaged with herringbone tooth, chain wheel gear is connected with vehicle frame; Described chain wheel gear is provided with foot-operated.
It is further: the inner ring of described bearing is connected with screw rod, and described screw rod is connected on vehicle frame.
Described trailing wheel is set with the protective cover be fixed on vehicle frame, described wheel body and chain wheel teeth wheel are positioned at protective cover; On protective cover, opening is left in the relevant position of corresponding bearing and chain wheel gear.
The utility model compact conformation; Use the cooperation of inner gear and external gear to realize, chain wheel is as external gear, and Direct driver inner gear rotates.And inner gear can, directly as trailing wheel, drive bicycle to advance.
Durability long structure is simple; The quantity of gear is few, and drive with two gears and move ahead, gear is connected with screw rod with bearing with the fixing of vehicle frame.Connect with axle between chain wheel and vehicle frame.Be connected with screw rod with four bearings between inner gear and vehicle frame.
Transmitting ratio is high; Rotated by chain wheel Direct driver trailing wheel, eliminate middle miniature gears.More laborsaving.
Easy to maintenance; Owing to there is no chain, so there will not be the chain releasing as standard bicycle.The reliable transmission of gear is more better than chain.
The bicycle sold in the world is at present substantially all chain gear, and reliability and the efficiency of linked transmission are high less than gear, and the life-span is not long yet.Structure is more complicated also, and reliability is not strong.Chain also easily comes off, and safeguards inconvenient.The feature maximum compared with traditional chain gear of the utility model uses gear transmission, its driving efficiency is high, simple and compact for structure, cost is low, gear transmission technology is ripe, this will alleviate the labour intensity of staff, larger economic benefit can be brought for company, therefore there are wide market outlook.The utility model is easy and simple to handle, long service life, easy to maintenance, towards most domestic ruck, Ke Huduo.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is right elevation in Fig. 1;
Fig. 3 is the enlarged drawing of vehicle frame and trailing wheel junction in Fig. 1;
Fig. 4 is rear-wheel structure schematic diagram;
Fig. 5 is protecting cover structure schematic diagram;
Fig. 6 is chain wheel gear and foot pedal structure schematic diagram;
Fig. 7 is vehicle frame front view;
Fig. 8 is left view in Fig. 7;
Fig. 9 is birds-eye view in Fig. 8;
In figure: 1, handlebar; 2, vehicle frame; 3, vehicle seat; 4, trailing wheel; 41, herringbone tooth; 42, circular groove; 43, tire; 44, wheel body; 5, foot-operated; 6, chain wheel gear; 7, front-wheel; 8, front fork; 9, bearing; 10, screw rod; 11, protective cover.
Detailed description of the invention
Be below a specific embodiment of the present utility model, existing the utility model is described in further detail by reference to the accompanying drawings.
As shown in Figure 1, vehicle frame 2 front end connects front fork 8, and front-wheel 7 is installed in front fork 8 lower end, and front fork 8 upper end end installation car is 1; The chain wheel gear 6 that vehicle frame 2 rear end connects trailing wheel 4 and directly engages with trailing wheel 4, chain wheel gear 6 is provided with foot-operated 5, trailing wheel 4 is set with the protective cover 11 be fixed on vehicle frame 2.
As shown in Figure 4, trailing wheel 4 comprises circular wheel body 44, and described wheel body 44 inner ring surface has whole circle herringbone tooth 41, and wheel body 44 two sides have symmetrical circular groove 42, and wheel body 44 outer ring surface is provided with tire 43; Tire 43 diameter 900mm, the wide 30mm of circular groove 42, the degree of depth is 20mm, and trailing wheel width is 50mm.Leave the support of 10mm between two circular grooves 42, be used for supporting the weight of the people that trailing wheel and trailing wheel support.The material of trailing wheel is mainly 45# steel, and tire material is rubber, to reach the object of damping.And trailing wheel inside adopts herringbone tooth.It is larger that herringbone tooth compares common straight-tooth load-carrying capacity, and smooth running, noise is less, more not easily produces vibrations.And herringbone tooth is compared to helical teeth, without on helical teeth to the transverse force of axle.Without transverse force, structure can more rationally with reliable.Like this, trailing wheel is just more rationally with stable.
Composition graphs 2 and Fig. 3 again, is provided with two groups of bearings 9 in circular groove 42, often organize in the symmetrical circular groove 42 being arranged on both sides respectively of bearing 9, the inner ring connecting screw rod 10 of bearing 9, screw rod 10 is connected on vehicle frame 2.Bearing 9 is GB277 bearing, and bearing 9 to load on wheel body 44 in circular groove 42 track and is fixed on vehicle frame with screw rod.Use bearing can reduce the friction force between constraint, and bearing is in mechanical transmission course, play parts that are fixing and reduction load friction coefficient.Alternatively, when other parts produce relative motion each other on axle, be used for reducing the fixing parts of friction coefficient in power transmission process and retainer shaft center.Bearing is a kind of very important parts in contemporary mechanical equipment.Its radical function is supported mechanical swivel, in order to reduce the mechanical load friction coefficient of equipment in transmission process.And adopt four bearings can limit the degree of freedom of trailing wheel, share stressed simultaneously.Make structure more reliable and durable.The long 200mm of screw rod of fixed type bearing, diameter is 10mm.Circular groove 42 2-3mm more bigger than bearing 9 diameter, prevents that shaft strength direction is identical cannot roll.Groove depth is 20mm.Bearing can be put down completely, bearing can be rolled freely in groove.
As shown in Figure 5, trailing wheel 4 is set with the protective cover 11 be fixed on vehicle frame 2, wheel body 44 and chain wheel gear 6 are positioned at protective cover 11; On protective cover 11, opening is left in the relevant position of corresponding bearing 9 and chain wheel gear 6.Trailing wheel 4 and chain wheel gear 6 are gears meshing, so need to ensure dust in operational process, stone etc. can not affect the normal transmission of bicycle.And bicycle in use often can and earth, stone, the contacts such as dust.And take the bottom of s trouser leg in order to prevent to during gears meshing, so devise protective cover 11.Decrease dust, impact when stone normally runs gear, turn avoid gear simultaneously and scratch the situations such as clothing.Cover of dust thickness is 2.5mm internal diameter be 750mm external diameter is 860mm.
As shown in Figure 6, chain wheel gear 6 number of teeth 30, modulus 5, thickness is 40mm, and shaft hole diameter is 25mm, and the keyway degree of depth is 5.5mm, and the thickness of keyway is 6mm.Chain wheel gear is fixed on axle by keyway, adopts interference fit between chain wheel and foot-operated and chain wheel teeth wheel shaft.The material of chain wheel gear is 45# steel.Chain wheel gear also adopts herringbone tooth, and trailing wheel herringbone tooth intermeshes.Tramp with one's feet dynamic pedal, and pedal is rotated by axle band movable chain wheel, and chain wheel and backgear intermesh, and reaches the object driving trailing wheel to rotate.
Fig. 7 to Fig. 9 is a specific design size of vehicle frame 2, in figure: the high 100mm of label 21, long 30mm, wide 20mm; Label 22 is length of sides is 150mm, thickness is the equilateral triangle of 40mm; Label 23 length 600mm, diameter are the high 500mm of 30mm label 24, diameter is 30mm; Label 25 length 300mm, diameter are 30mm label 26 length 400mm, diameter is 30mm, horizontal sextant angle is 30 °; Label 27 and 28 is all long 200mm, length and width are the cuboid of 30mm; Label 29 is length is 140mm, the generous cross bar in order to support seat for 30mm.
The utility model double helical gear driving bicycle belongs to the structural development of bicycle.Real has broken away from the restriction of chain, the shortcoming drawback of the company's of avoiding formula transmission.There is again gear-driven advantage simultaneously, compare old-fashioned company's formula transmission, more laborsaving.Meanwhile, because there is no the structures such as flywheel, so structure is more compact.And compact design means more durable, there will not be the situation of the chain releasing on old bicycles.Ride more safe.
And in China, bicycle or main walking-replacing tool.This improves extensive market.And not only bicycle, Electrical Bicycle, motor bike etc. can use this Optimal Structure Designing, make compact conformation reliable.
Claims (3)
1. a double helical gear driving bicycle, comprises handlebar (1), vehicle frame (2), vehicle seat (3) and the trailing wheel (4) be connected on vehicle frame (2) and front-wheel (7); It is characterized in that: described trailing wheel (4) comprises circular wheel body (44), described wheel body (44) inner ring surface has whole circle herringbone tooth (41), wheel body (44) two sides have symmetrical circular groove (42), and wheel body (44) outer ring surface is provided with tire (43); Be provided with two groups of bearings (9) in described circular groove (42), often organize in the symmetrical circular groove (42) being arranged on both sides respectively of bearing (9), the inner ring of described bearing (9) is connected with vehicle frame (2); In the rear take turns (4) herringbone tooth (41) on the chain wheel gear (6) engaged with herringbone tooth (41) is installed, chain wheel gear (6) is connected with vehicle frame (2); Described chain wheel gear (6) is provided with foot-operated (5).
2. double helical gear driving bicycle according to claim 1, is characterized in that: the inner ring of described bearing (9) is connected with screw rod (10), and described screw rod (10) is connected on vehicle frame (2).
3. double helical gear driving bicycle according to claim 1, is characterized in that: described trailing wheel (4) is set with the protective cover (11) be fixed on vehicle frame (2), and described wheel body (44) and chain wheel gear (6) are positioned at protective cover (11); Opening is left in the relevant position of the upper corresponding bearing (9) of protective cover (11) and chain wheel gear (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156156.9U CN204473053U (en) | 2015-03-19 | 2015-03-19 | Double helical gear driving bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156156.9U CN204473053U (en) | 2015-03-19 | 2015-03-19 | Double helical gear driving bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204473053U true CN204473053U (en) | 2015-07-15 |
Family
ID=53628841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520156156.9U Expired - Fee Related CN204473053U (en) | 2015-03-19 | 2015-03-19 | Double helical gear driving bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204473053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323585A (en) * | 2017-07-12 | 2017-11-07 | 李良杰 | Gear driving bicycle |
| CN107776331A (en) * | 2016-08-31 | 2018-03-09 | 谢杰川 | One kind is without hub wheel |
-
2015
- 2015-03-19 CN CN201520156156.9U patent/CN204473053U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107776331A (en) * | 2016-08-31 | 2018-03-09 | 谢杰川 | One kind is without hub wheel |
| CN107323585A (en) * | 2017-07-12 | 2017-11-07 | 李良杰 | Gear driving bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |