Fully-unloaded gear shifting device

Abstract

The invention discloses a fully-unloaded gear shifting device which comprises a driving shaft and a driven shaft, a one-gear driving unidirectional clutch and a two-gear driving unidirectional clutch are fixedly sheathed on the driving shaft, and a one-gear driven unidirectional clutch is fixedly sheathed and a two-gear driven unidirectional and bidirectional clutch is installed on the driven shaft, wherein a unidirectional driving gear in the one-gear driving unidirectional clutch is meshed with a one-gear driven gear in the one-gear driven unidirectional clutch. When the driving shaft rotates counterclockwise, the one-gear driving unidirectional clutch drives the one-gear driven unidirectional clutch to rotate clockwise, and the one-gear driven unidirectional clutch drives the driven shaft to rotate clockwise. When the driven shaft rotates clockwise, the two-gear driving unidirectional clutch drives a steering gear to rotate counterclockwise, the steering gear drives the two-gear driven unidirectional and bidirectional clutch to rotate clockwise, and the two-gear driven unidirectional and bidirectional clutch drives the driven shaft to rotate clockwise. The fully-unloaded gear shifting device has novel structure, the gear shifting function can be reliably realized via the unidirectional clutches and the unidirectional and bidirectional clutch, and the reserve gear function can also be realized.

Description

technical field [0001] The invention relates to an electric motor auxiliary device, in particular to a full unloading gear shifting device capable of shifting gears 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 automat...

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 complex, difficult to repair, and the cost is high. At the same time, due to the limitation of sensor technology, the response to speed changes is slow, and it is not as sensitive as the manual gear; CVT can realize The continuous change of the transmission ratio, so as to obtain the best match between the transmission system and the engine working conditions, theoretically improve the fuel economy and power of the vehicle, improve the driver's handling convenience and the passenger's ride comfort, so in theory It is an ideal transmission device for motor vehicles. Therefore, it is widely used in existing scooter motorcycles. However, the application of continuously variable transmissions to small vehicles such as motorcycles basically uses belt transmission, and the load-bearing torque is limited. When the engine loses rotation, it will directly affect 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

Images