The gearbox transmission device comprises a main shaft, an auxiliary shaft and an output chain wheel, a main shaft gear and a driving ratchet wheel are arranged on the main shaft, an auxiliary shaft gear and a driven ratchet wheel are arranged on the auxiliary shaft, and a shifting groove is formed between the driving ratchet wheel and the driven ratchet wheel. The main shaft gear and the auxiliary shaft gear are mutually matched and meshed; at least one of the driving ratchet wheel and the driven ratchet wheel is a double-ratchet ratchet wheel, and two main shaft gears or two auxiliary shaft gears with single ratchets are arranged on the two sides of the double-ratchet ratchet wheel. The double-ratchet ratchet wheel moves left and right on the main shaft or the auxiliary shaft and is meshed with or separated from the two main shaft gears or the two auxiliary shaft gears of the single ratchet through ratchets on the two sides. One of the main shaft gears is a direct-drive gear, and the output chain wheel is fixed on the direct-drive gear; the ratchets are all oblique teeth. According to the technical scheme, the compact bicycle transmission is compact in structure, capable of directly carrying out gear advancing and gear retreating and stable in operation.
本发明涉及一种带负荷变速的自行车变速箱传动装置及变速箱,变速箱传动装置,包括主轴、副轴和输出链轮,主轴上设有主轴齿轮和主动棘轮,副轴上有副轴齿轮和从动棘轮,主动棘轮和从动棘轮的中间设有拨槽,主轴齿轮和副轴齿轮相互配合啮合;主动棘轮和从动棘轮中至少有一个是双棘齿棘轮,双棘齿棘轮两侧设置有具有单棘齿的两个主轴齿轮或两个副轴齿轮,双棘齿棘轮在主轴或副轴上左右移动并通过两侧的棘齿分别与所述的单棘齿的两个主轴齿轮或两个副轴齿轮相互啮合/分离;主轴齿轮其中一个是直驱齿轮,输出链轮固定在所述的直驱齿轮上;棘齿均为斜齿。采用上述技术方案的紧凑型自行车变速器,结构紧凑,能直接进行进挡和退挡,运行稳定。
Bicycle gearbox transmission device with on-load speed change and gearbox
一种带负荷变速的自行车变速箱传动装置及变速箱
2023-07-25
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Bicycle center shaft gearbox with on-load speed change
Europäisches Patentamt | 2022
|Bicycle with novel gearbox transmission bicycle transmission
Europäisches Patentamt | 2022
|