Chainless gear transmission device for bicycle
A transmission and gear-type technology, which is applied in the direction of wheel transmission, vehicle parts, vehicle gearboxes, etc., can solve the problems of chain loosening, loud noise, uneven force, etc., to improve efficiency, reduce noise, and structure compact effect
Inactive Publication Date: 2010-10-20
刘珍如 +3
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Problems solved by technology
The bicycle chain of this structure is easy to loosen, the force is uneven, the phenomenon of chain detachment and chain breakage often occurs, and the wear is very serious, the chain is easily damaged, and needs to be replaced frequently
The unstable transmission of force by the chain transmission structure will also lead to low transmission efficiency of the bicycle and considerable noise during operation; at the same time, the transmission parts are partly exposed to the air, and often come into contact with impurities such as dust in the air, which accelerates the transmission speed of the bicycle. Corrosion of transmission parts; it is also difficult to refuel and lubricate. In addition, for this kind of open chain transmission bicycle, the trouser legs are likely to be squeezed into the transmission system or encounter lubricating oil and be torn or dirty
Method used
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Embodiment
[0014] Embodiment: with reference to accompanying drawing:
[0015] The present embodiment comprises the front drive shaft 6 installed in the front drive case 10, the front drive gear 3, the front driven gear 11, the rear driven gear 13 installed in the rear drive case 20, the rear drive gear 14, the rear drive shaft 16 and the vehicle hub 19, the front drive gear 3 and the rear driven gear 13 adopt bevel gears, and the front driven gear 11 and the rear drive gear 14 adopt cylindrical gears. The transmission rod 12 connects the front drive box 10 and the rear drive box 20 . The front drive gear 3 is connected to the front drive shaft 6 through the ratchet 5, and a ratchet 7 is provided at the joint between the front drive shaft 6 and the ratchet 5, and the front drive shaft 6 is connected to the pedal shaft 1 and the pedal 2 through the connecting rod 4 . Adopt interference fit between front drive shaft 6 and connecting rod 4, and reinforce with pin. Front drive shaft 6, re...
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The invention discloses a chainless gear transmission device for a bicycle. The gear transmission device comprises a front driving shaft, a front driving gear and a front driven gear which are arranged in a front driving box, a rear driven gear, a rear driving gear and a rear driving shaft which are arranged in a rear driving box, a hub and a driving rod which connects the front driving box with the rear driving box. The gear transmission device is characterized in that: the front driving gear is connected with the front driving shaft through a ratchet wheel; ratchet is formed at a joint of the front driving shat and the ratchet wheel; and the front driving shaft is connected with a pedal shaft and a pedal through a connecting rod. The gear transmission device for the bicycle has the advantages of realizing chainless transmission of the bicycle, improving the energy transmission efficiency of the bicycle and reducing noise in the transmission process.
Description
technical field [0001] The invention relates to a chainless gear type bicycle transmission device. Background technique [0002] The traditional transmission system of bicycle is mainly realized by chain, crankset and flywheel at present, and crankset transmits motion to flywheel and bicycle rear wheel to realize driving by chain under the drive of pedal and connecting rod. The bicycle chain of this structure is easy to loosen, and the stress is not uniform, and the phenomenon of detachment and broken chain often occurs, and the wear and tear is very serious, and the chain is very easy to be damaged, so it needs to be replaced frequently. The unstable transmission of force by the chain transmission structure will also lead to low transmission efficiency of the bicycle and generate considerable noise during operation; at the same time, the transmission parts are partly exposed to the air, and often come into contact with impurities such as dust in the air, which speeds up the...
Claims
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IPC IPC(8): B62M11/02
Inventor 宁勇戴绘东刘珍如戴云力戴德军曾广胜鲁纪鸣
Owner 刘珍如