CN88202769U - Bicycle no chain transmission system - Google Patents
Bicycle no chain transmission system Download PDFInfo
- Publication number
- CN88202769U CN88202769U CN 88202769 CN88202769U CN88202769U CN 88202769 U CN88202769 U CN 88202769U CN 88202769 CN88202769 CN 88202769 CN 88202769 U CN88202769 U CN 88202769U CN 88202769 U CN88202769 U CN 88202769U
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- CN
- China
- Prior art keywords
- gear
- transmission
- crowngear
- axis
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a bicycle no chain transmission apparatus, comprising a central shaft umbrella-shaped gear, a transmission umbrella-shaped front gear, a transmission umbrella-shaped back gear, a wheel shaft umbrella-shaped gear, a central shaft, a transmission shaft, a ball bearing, a locating pyramid, a transmission shaft external sleeve pipe, an external sleeve pipe connecting end, a central shaft gear shield, a shield connecting side element, and a transmission gear shield. Through making use that two pairs of the umbrella-shaped gear wheels engage; the rotation of one pair of the gear wheels is transferred to the other pair by the transmission shaft; as a result, a rotating wheel hub arranged on one of the pair of the gear wheels rotates with the gear wheel to realize the dynamic transmission. The utility model has the advantages of simple structure, less noise, convenient assembly and disassembly, and high efficiency and compactness. The bicycle no chain transmission apparatus has compact structure and easy maintenance; the non-oil transmission can be realized, and the bicycle no chain transmission apparatus can be used for the improvement of the existing bicycle transmission apparatus.
Description
The utility model relates to the bicycle power drive as daily used for vehicle.
Bicycle is a kind of the most general in the daily life, the well-known vehicle.For many years, bicycle develops into two-wheeled from single-wheel, double even structure of riding, its power is except by motor-driven or electronic, most bicycle is still and adopts rider's foot to drive, and is because the bicycle structure of this pattern is simple, easy to use, cheap, but also can be by taking exercises by bike.The transmission of existing its power of bicycle mainly comes transmission by chain, and its type of drive is, the rider makes sprocket wheel rotate around axis with foot-operated pedal simultaneously, and the chain hole of messenger chain is respectively seated on the gear teeth of sprocket wheel and back flying wheel.Therefore, the rotation of sprocket wheel drives the motion of messenger chain, meanwhile also drives the rotation of flywheel, because flywheel is fixedly installed on the wheel hub of trailing wheel, rotates together so bicycle rear adheres to flywheel.Because the rotation of trailing wheel is rotated driven front-wheel together, consequently forms the motion of whole bicycle.The size of driving force, cycle racing soon, slowly can be as required by adopting the number of teeth between sprocket wheel and the flywheel recently design or regulate.But, adopt chain gear to exist a series of problem, main problem is, sprocket wheel, the wheel bar, the flywheel parts expose, and the rider's that makes dirty easily trouser legs are clamped rider's trouser legs easily, if the gear teeth mismate of chain and sprocket wheel, flywheel takes off chain easily.The bicycle that has adds that chain guard protects sprocket wheel, chain and flywheel, however chain guard is installed difficulty, does not allow arbitrarily to move, and frictional noise will take place to clash into or cause in long or chain guard inner component position not at that time at chain.Secondly, adopt the chain cover structure to sprocket wheel, the maintenance of chain and flywheel is also made troubles.
The purpose of this utility model is to propose a kind of Chainless-drive device and overcomes caused variety of issue when chain-driving is arranged.Promptly provide a kind of Chainless-drive device to make the rider by bike the time, be unlikely to perhaps to damage trouser legs because of driving device is subjected to trouble.Other purpose of the present utility model is the space that reduces driving device, because the whole transmission device good airproof performance influences transmission performance so can prevent the productive set of foreign object.When transmission crowngear employing non-metallic material, when one of the gear that perhaps is meshing with each other adopted non-metallic material, rotational noise was little, adopted no oily crowngear engaged transmission even.Owing to adopt Chainless-drive device, therefore there is not the chain situation of taking off, increase reliable transmission.Since adopt the engaged transmission of bevel reduction gear set, so transmission structures is simple, mounting or dismounting easily.
Accompanying drawing 1 is realized the scheme drawing that transmission is turned round between each drive disk assembly of expression Chainless-drive device.
Wherein, the component names of each numbering is as follows:
1 axis crowngear, 2 transmission umbrella shape front gears, 3 transmission umbrella shape backgears, 4 wheel shaft crowngears, 5 axis, 6 transmission shafts, 7-12 ball bearing of main shaft, 13 location cones, 14 transmission shaft outer tubes, 15,16 outer tube coupling ends, 17 axis gear guards, 18,19 guard shields connect the side part, and 20 take turns the shaft transmission gear guard shield, and 21 rotate wheel hub, 22 rotating axles, 23 pedal bent axles, 24 captive nuts.
Below in conjunction with accompanying drawing transmission device of the present utility model is explained in detail.
Chainless-drive device described in the utility model is to adopt two pairs of crowngear engagements, and the through-coupling mechanism that realizes transmission by transmission shaft.Described driving device mainly comprises axis crowngear 1, transmission umbrella shape front gear 2, transmission umbrella shape backgear 3, wheel shaft crowngear 4, axis 5, transmission shaft 6, ball bearing of main shaft 7,8,9,10,11,12, location cone 13, transmission shaft outer tube 14, outer tube coupling end 15,16, axis gear guard 17, guard shield connect side part 18,19, and parts such as wheel shaft transmission gear guard shield 20.Rider's reinforcing is in pedal (not shown), make 23 motions of pedal bent axle, because pedal bent axle 23 cooperates with axis 5 location, axis crowngear 1 and axis 5 heavy keying fit, so the motion of pedal bent axle 23 makes axis 5 and axis crowngear 1 be positioned at ball bearing of main shaft 7 together, 8,9, rotate in 10, transmission umbrella shape front gear 2 and backgear 3 are fixedly connected on the both sides of transmission shaft 6 respectively, because transmission umbrella shape front gear 2 and 1 engagement of axis crowngear, thus when axis crowngear 1 rotates, make transmission umbrella shape front gear 2, transmission umbrella shape backgear 3 and transmission shaft 6 are positioned at ball bearing of main shaft 11 and rotate together.Described wheel shaft crowngear 4 one ends are positioned at rotation wheel hub 21, and the other end is by location cone 13 location, and rotating axle passes wheel shaft crowngear 4 and location cone 13, and are subjected to ball 12 supporting rotations.Described wheel shaft crowngear 4 cooperates with rotation wheel hub 21, adopt habitual engaging and disengaging gear, as the detent mechanism in the freewheel, when making gear 4 make forward rotation, gear 4 drives rotation wheel hub 21 and rotates together, when gear 4 stalls or backward rotation, gear 4 does not drive and rotates wheel hub 21 rotations, and rotate wheel hub 21 and freely rotate around rotating axle 22 this moment.
Because described wheel shaft crowngear 4 and 3 engagements of transmission umbrella shape backgear, so when backgear 3 rotates, drive wheel shaft umbrella shape 4 and rotate together.Described gear system is when doing the forward transmission, and rider's propulsive effort acts directly on and rotates on the wheel hub 21, owing to rotate the forward rotation of wheel hub 21, causes whole bicycle to overtake.
Embodiment:
Adapted Chainless-drive device on common cycle rack axis and rotation wheel hub, axis crowngear wherein, the forward and backward gear of transmission umbrella shape, the wheel shaft crowngear is selected the spiral umbrella gear with similar S shape for use, the curved shape of tooth-formation of gear, the engagement lineal measure of between cog meshes dimension greater than straight-tooth, so the driving efficiency height.Above-mentioned crowngear is selected metallic material, casts as adopting partial metallurgy, or selects non-metallic material for use, as high strength non-metallic material polyurethane die cast, or selects for use one in the gear mesh that is meshing with each other to be non-metallic gear.At this moment, rotational noise is little, and can realize does not have oily transmission.Transmission shaft adopts the big spindle steel of intensity.Described transmission umbrella shape front gear 2 and backgear 3 adopt respectively with transmission shaft 6 and are threaded, be that gear 2 is equipped with negative thread at centre bit respectively with 3 its ends that are connected with transmission shaft 6, described negative thread is threaded with the outside thread formation at transmission shaft 6 two ends.Described axis crowngear and axis are whole formations.Two pairs of crowngears 1,2 of whole transmission device; The gear multiplication of 3,4 combinations is 1:2-1:3, and is wherein best than being 1:2.2.
The described Chainless-drive device of the utility model has simple in structure, compactness, and noise is little, and mounting or dismounting are convenient, keep in repair easily and maintain and can realize not having oily transmission, the transmission efficiency advantages of higher. Described transmission device except can be used for the improvement to existing bicycle drive, also be used in rotate the back brake device is set in the wheel hub or adopt the rotation wheel hub constructional device with shift speed change.
Claims (6)
1, a kind of Chainless-drive device of bicycle use, it is characterized in that described driving device comprises axis crowngear 1, transmission umbrella shape front gear 2, transmission umbrella shape backgear 3, wheel shaft crowngear 4, axis 5, transmission shaft 6, ball bearing of main shaft 7,8,9,10,11,12, location cone 13, transmission shaft outer tube 14, outer tube coupling end 15,16, axis gear guard 17, guard shield connects side part 18,19, and wheel shaft transmission gear guard shield 20, wherein said axis crowngear 1 and 2 engagements of transmission umbrella shape front gear, transmission umbrella shape backgear 3 and 4 engagements of wheel shaft crowngear, described front gear 2 and backgear 3 are connected to the both sides of transmission shaft 6, described axis gear guard 17, guard shield connects side part 19 and guard shield connects the both sides that side part 18 lays respectively at axis 5, be between described axis 5 and the axis crowngear 1 and captive joint, guard shield connects to adopt between side part 18 and 19 and is located by connecting, and described transmission shaft outer tube 14 is by means of outer tube coupling end 15,16 with gear guard 17, guard shield attaching parts 19 and transmission gear guard shield 20 are connected, and described rotating axle 22 fits in the wheel shaft crowngear 4 by location cone 13, when described wheel shaft crowngear 4 is done the forward running, gear 4 drives rotation wheel hub 21 and rotates together, when gear 4 stalls or antiport, gear 4 does not drive and rotates wheel hub 21 rotations, causes rotation wheel hub 21 freely to rotate around rotating axle 22.Its transmitting ratio of gear system that is made of described crowngear 1,2,3,4 is 1: 2-1: 3.
2, driving device as claimed in claim 1, it is characterized in that described axis crowngear 1, transmission umbrella shape front gear 2, transmission umbrella shape backgear 3 and wheel shaft crowngear 4 are spiral umbrella gears, the curved shape of tooth-formation of gear, the engagement dimension of between cog meshes dimension greater than straight-tooth.
3, as claim 1,2 described drivings device is characterized in that described axis crowngear 1, transmission crowngear 2,3 and wheel shaft crowngear 4 be by non-metallic material, for example, and polyurethane, perhaps pitch wheel one of them use metal, another is made with non-metal.
4, as claim 1,2 described drivings device, it is characterized in that described transmission umbrella shape front gear 2 and backgear 3 adopt respectively with transmission shaft 6 is threaded, be that gear 2 is provided with negative thread respectively with 3 its ends that are connected with transmission shaft 6, described negative thread is threaded with the outside thread formation at transmission shaft 6 two ends.
5, driving device as claimed in claim 1 is characterized in that described axis crowngear 1 and axis 5 are that integral body constitutes.
6, driving device as claimed in claim 1 is characterized in that described rotation wheel hub 21 can adopt and has shifted rotational structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202769 CN88202769U (en) | 1988-04-11 | 1988-04-11 | Bicycle no chain transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202769 CN88202769U (en) | 1988-04-11 | 1988-04-11 | Bicycle no chain transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88202769U true CN88202769U (en) | 1988-12-14 |
Family
ID=4837726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88202769 Withdrawn CN88202769U (en) | 1988-04-11 | 1988-04-11 | Bicycle no chain transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88202769U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067639C (en) * | 1995-08-08 | 2001-06-27 | 池清源 | Multiple-unit man-power bicycle |
| US6446995B1 (en) | 1999-06-04 | 2002-09-10 | Shanghai Baoqi Bicycle Co., Ltd. | Bicycle with bevel gear drive for children |
| CN102991630A (en) * | 2010-10-12 | 2013-03-27 | 甘万达 | Green bike, wheel and generator thereof |
-
1988
- 1988-04-11 CN CN 88202769 patent/CN88202769U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067639C (en) * | 1995-08-08 | 2001-06-27 | 池清源 | Multiple-unit man-power bicycle |
| US6446995B1 (en) | 1999-06-04 | 2002-09-10 | Shanghai Baoqi Bicycle Co., Ltd. | Bicycle with bevel gear drive for children |
| CN102991630A (en) * | 2010-10-12 | 2013-03-27 | 甘万达 | Green bike, wheel and generator thereof |
| CN102991630B (en) * | 2010-10-12 | 2016-11-16 | 甘万达 | Environmental protection bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |