Forward and reverse full-overrun gear shifting mechanism

Abstract

The invention discloses a forward and reverse full-overrun gear shifting mechanism. The mechanism comprises a driving shaft and a driven shaft, wherein a first-gear driving one-way clutch and a second-gear driving one-way clutch are fixedly sleeved on the driving shaft; a first-gear driven one-way clutch is fixedly sleeved on the driven shaft; a second-gear driven one-way / two-way clutch is arranged on the driven shaft; a first-gear driving gear in the first-gear driving one-way clutch is engaged with a first-gear driven gear in the first-gear driven one-way clutch; when the driving shaft rotates clockwise, the first-gear driving one-way clutch drives the first-gear driven one-way clutch to rotate anticlockwise and the first-gear driven one-way clutch drives the driven shaft to rotate anticlockwise; and when the driving shaft rotates anticlockwise, the second-gear driving one-way clutch drives the second-gear driven one-way / two-way clutch to rotate anticlockwise and the second-gear driven ne-way / two-way clutch drives the driven shaft to rotate anticlockwise. The mechanism has a simple and novel structure. Reliable gear shifting function and reverse gear function can be realized reliably through the one-way clutch and the one-way / two-way clutch.

Description

technical field [0001] The invention relates to an engine auxiliary device, in particular to a forward and reverse full-override shifting mechanism capable of shifting and reverse gears. Background technique [0002] In the prior art, various automobiles, motorcycles, and electric bicycle transmissions are of a great variety, but they are inseparable from each other. The transmissions mainly include manual transmissions, automatic transmissions and continuously variable transmissions. The manual transmission relies on the driver to change the speed manually, which requires very high experience of the driver. The level of the driver directly affects the safety of driving and the service life of the vehicle. For inexperienced drivers, when the speed changes suddenly, It will cause the engine to run under unsteady conditions, and it is prone to problems such as off-gear and flameout; the transmission ratio rotation and shifting of the automatic transmission are carried out auto...

AI Technical Summary

Problems solved by technology

The manual transmission relies on the driver to change the speed manually, which requires very high experience of the driver. The level of the driver directly affects the safety of driving and the service life of the vehicle. For inexperienced drivers, when the speed changes suddenly, It will cause the engine to run under unsteady conditions, and it is prone to problems such as off-gear and flameout; the transmission ratio rotation and shifting of the automatic transmission are carried out automatically, and the conversion of each gear of the mechanical transmission is based on reflecting the engine load and The vehicle speed signal system is used to control the actuators of the shift system. The driver only needs to manipulate the accelerator pedal to control the vehicle speed. However, the automatic transmission still needs to go through two processes of separation and engagement when shifting gears. The driving force is cut off before the gear, so you can obviously feel the frustration, and the mechanism is complicated and difficult to repair. At the same time, due to the limitation of the sensor technology, the response to the speed change is slow, and it is not as sensitive as the manual gear; the continuously variable transmission can realize the continuous transmission ratio. Change, so as to get the best match between the transmission system and the engine operating conditions, theoretically improve the fuel economy and power of the vehicle, improve the driver's handling convenience and the passenger's ride comfort, so it is ideal in theory Motor vehicle transmission, therefore, is used more in existing scooter, but, CVT is applied to the small car such as motorcycle and basically all uses belt drive, and the bearing torque is limited, and the engine may lose power when the torque is large. Turning phenomenon directly affects the power, economy and safety of the car

Most of the above transmissions or shifting mechanisms can only realize the function of shifting gears, and it is difficult to realize the function of reverse gears

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