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Gearbox in center shaft of bicycle

A technology of bicycles and transmission gearboxes, which is applied in the direction of vehicle transmissions, vehicle components, wheel transmissions, etc., can solve problems such as obstacles to the development of central axle transmission technology.

Active Publication Date: 2021-09-17
佛山市顺德区智趣动电子商务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of bicycle transmission technology, the requirements for gearboxes are getting higher and higher. From the initial chain gear transmission to the current center shaft transmission, the stability and reliability of bicycle transmissions have been greatly improved. Now The speed adjustment range and stability of some bicycle center shaft transmissions are inversely proportional to the size and reliability of the transmission. How to achieve a large speed adjustment range, high stability, high reliability, and a compact center shaft transmission , has become the biggest obstacle to the development of the current center shaft transmission technology

Method used

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  • Gearbox in center shaft of bicycle
  • Gearbox in center shaft of bicycle
  • Gearbox in center shaft of bicycle

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Embodiment Construction

[0015] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 As shown, a kind of bicycle center shaft internal gearbox provided by the present invention includes a box body 1, an input shaft 2, an output shaft 3 and a speed change unit 4, the two ends of the input shaft 2 are connected with bicycle pedals, and the output shaft 3 is connected with the wheel connected, the input shaft 2 and the output shaft 3 are connected through a speed change unit 4, and the speed change unit 4 includes a driving gear set 5, a driven gear set 6, a transmission gear set 7 and a transmission gear set 8, and the driving gear set 5 Comprising three driving gears 51, the driven gear set 6 includes four driven gears 61, the transmission gear set 7 includes a transmission gear 71 whose number is the sum of the driving gear 51 and the driven gear 61, and the transmission gear set 8 includes the transmission driving gear 81, the transmission driven gear 82, the driving transm...

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Abstract

A gearbox in a center shaft of a bicycle comprises a box body, an input shaft, an output shaft and a speed change unit, the two ends of the input shaft are connected with pedals of the bicycle, the output shaft is connected with wheels, the input shaft and the output shaft are connected through the speed change unit, and the speed change unit comprises a driving gear set, a driven gear set, a transmission gear set and a variable-speed gear set. The variable-speed gear set comprises variable-speed driving gears, variable-speed driven gears, driving variable-speed shifting fork rods and driven variable-speed shifting fork rods. The number of the driving variable-speed shifting fork rods is consistent with that of the driving gears. The number of the driven variable-speed shifting fork rods is consistent with that of the driven gears. A driving inserting hole is formed in the variable-speed driving gear, and a driven inserting groove is formed in the variable-speed driven gear.

Description

technical field [0001] The invention relates to an inner axle gearbox of a bicycle. Background technique [0002] With the continuous improvement of bicycle transmission technology, the requirements for gearboxes are getting higher and higher. From the initial chain gear transmission to the current center shaft transmission, the stability and reliability of bicycle transmissions have been greatly improved. Now The speed adjustment range and stability of some bicycle center shaft transmissions are inversely proportional to the size and reliability of the transmission. How to achieve a large speed adjustment range, high stability, high reliability, and at the same time a compact center shaft transmission , has become the biggest obstacle to the development of the current center shaft transmission technology. Contents of the invention [0003] The invention provides a bicycle center shaft internal gearbox, which has the advantages of simple structure, large speed regulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M11/04
CPCB62M11/04
Inventor 蔡明
Owner 佛山市顺德区智趣动电子商务有限公司
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