Central overrunning clutching synchronizer gearbox for electric bicycle

Abstract

The invention discloses a central overrunning clutching synchronizer gearbox for an electric bicycle. The gearbox comprises a dead axle and a moving axle, wherein the dead axle and the moving axle areindependently provided with multiple levels of gears; the gears on the dead axle and the gears on the moving axle are subjected to constant meshing arrangement one by one; the gears on the moving axle can be rotatably sheathed to the moving axle relative to the moving axle; a spline which carries out axial movement along the moving axle and synchronously operates with the moving axle is installedin the moving axle; the spindle is pulled and driven by a steel wire to move; the gears on the moving axle are independently provided with a spline groove which synchronously operates after the gearsare cooperated with the spline. Each gear on the moving axle corresponds to a tap position, the tap position is changed through the movement of the spline, tap position can be realized through pulling a steel wire even if parking is carried out, and tap position change speed is high. Meanwhile, a constant meshing way is adopted to enable the structure of the gearbox to be compact, small in spaceand convenient in use.

Description

technical field [0001] The invention belongs to the technical field of gearboxes, and in particular relates to a gearbox for a central overrunning clutch synchronizer of an electric bicycle. Background technique [0002] The chain-type transmission method of existing transmission bicycles has not been innovatively developed for many years. Its structure is simple and its cost is low, but it also has many disadvantages. It is easy to be damaged by collisions outside, difficult to maintain due to dirt and dirt, difficult to adjust the speed inaccurately, the chain is easy to wear when pulled diagonally, and it is also prone to off-chain jamming. [0003] At present, most electric vehicles are driven by rear hub motors without mechanical gearboxes. The speed and torque adjustment range is limited, and the unsprung mass of the rear wheel suspension system is large, which affects the sensitivity of the suspension, resulting in passability and riding comfort. feel bad. [0004] ...

AI Technical Summary

Problems solved by technology

[0005] Although there are many types of gearboxes in the field of motorcycles and automobiles, there are few gearboxes suitable for bicycles and electric bicycles. Bicycle gearboxes do not require high speed and torque, but require small size, light weight, compact and reliable structure, etc.

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