Double cam self-adapting automatic gear shifting hub

Abstract

The invention discloses a double cam self-adapting automatic transmission hub, comprising a power plant, a bottom fork, a box, a brake device, a transmission shaft which is arranged in and matches the box aswirl, a slow gear transmission mechanism and a conical disc clutch double cam self-adapting transmission assembly; wherein, a slow gear transmission shaft is arranged in and matches the box aswirl as well as is parallel to the transmission shaft. The double cam self-adapting automatic transmission hub not only keeps the output power of motors and the driving conditions of vehicles in the optimum matching state and realizes balance control of the driving moment of vehicles and comprehensive running resistance, but also does not need to hand off transmission chains when backing vehicles, has the same backing operation as the common vehicles and simple operation and self adapts to automatic transmission along with the variation of running resistance under the condition of not cutting off the driving force. The double cam self-adapting automatic transmission hub is beneficial for energy efficiency of vehicles and mechanical power equipments and has the characteristics of small volume, light weight, simple structure and suitability for installation on the hub and for portable electric bicycles with small volume.

Description

technical field [0001] The invention relates to a motor wheel hub, in particular to a double-cam self-adaptive automatic transmission wheel hub. Background technique [0002] In the prior art, automobiles, motorcycles, and electric bicycles basically directly control the throttle or current control speed through a speed control handle or an accelerator pedal, or use a manual mechanical automatic transmission mechanism to realize speed change. The operation of the handle or accelerator pedal depends entirely on the driver's operation, which often causes a mismatch between the operation and the driving conditions, resulting in unstable operation of the motor or engine, and stalling. [0003] When the motor vehicle is operated and controlled by the rider only based on experience without knowing the driving resistance, the following problems inevitably exist: 1. When starting, going uphill and with a large load, the motor or motor is forced to The engine speed drops and works i...

AI Technical Summary

Problems solved by technology

The operation of the handle or accelerator pedal depends entirely on the driver's operation, often resulting in a mismatch between the operation and the driving conditions, resulting in unstable operation of the motor or engine, and stalling

[0003] When the motor vehicle is operated and controlled by the rider only based on experience without knowing the driving resistance, the following problems inevitably exist: 1. When starting, going uphill and with a large load, the motor or motor is forced to The engine speed drops and works in the low-efficiency area, the engine stalls, heats up, or even stops rotating

2. Since there is no mechanical transmission to adjust the torque and speed, it can only be used in plain areas, and cannot be used in mountainous, hilly and heavy-load conditions, which reduces the scope of use; 3. The installation space at the drive wheel is small, and an engine or motor is installed It is difficult to accommodate automatic transmission and other new technologies; 4. It does not have the function of self-adaptation, and cannot automatically detect, correct and eliminate the driver's operation errors; 5. When the speed changes suddenly, the motor or engine will be in an unstable state. Running under normal working conditions will inevitably make it difficult to match the power of the motor or engine with the driving resistance

6. The continuation distance is short, the climbing ability is poor, and the adaptability range is small

[0004] In order to solve the above problems, a series of cam-adaptive automatic transmissions have appeared, which use driving resistance to drive the cam to achieve the purpose of automatic shifting; in order to cooperate with automatic shifting, an overrunning clutch is set, and there is a shunt in the transmission; There is an intersection between the gear and the slow gear transmission, which will cause the transmission to be stuck, and it is impossible to reverse the car; in order to solve the problem of reversing, a reversing device is installed on the automatic transmission. The reversing device is added, which makes the structure of the transmission more complicated, increases the production cost, and requires the driver to manually reverse the car, making the use more complicated

[0005] Therefore, there is a need for an automatic transmission hub, which can not only adapt to the change of driving resistance without cutting off the driving force, but also automatically perform gear shifting and speed change, solve the problem that the small change of motor torque-speed cannot meet the road use under complex conditions, and it does not need to be reversed. Manually cut off the transmission chain, simple structure, small size, light weight, small space required for installation

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