Brief analysis of the principle and function of transmission
The transmission is used to change the speed and torque of the engine. It can fix or change the transmission ratio of the output shaft and the input shaft in different stages. It is also called the transmission. The transmission consists of a transmission mechanism and a control mechanism. Some cars also have a power output mechanism. Most of the transmission mechanisms are driven by ordinary gears, and others are driven by planetary gears. The general gear transmission mechanism usually uses sliding gears and synchronizer. It is used to give full play to the best performance of the engine. The transmission can produce different transmission ratios between the engine and the wheel during the driving process of the vehicle. The engine can work in its best dynamic performance state by shifting gears.
Brief analysis of the principle and function of transmission
principle
Mechanical transmission mainly applies the principle of gear speed reduction. Simply put, there are many sets of gears with different transmission ratios in the gearbox, and the shifting behavior of the vehicle is to make different gears work in the gearbox through the control mechanism. For example, at low speed, let the gear pair with larger transmission ratio work, while at high speed, let the gear pair with smaller transmission ratio work.
Brief analysis of the principle and function of transmission
1. Changing the transmission ratio.
One of the functions of the transmission is to change the transmission ratio, so as to change the speed of the car and the torque on the driving wheel, so that the engine works in the most favorable conditions. In the course of driving, because of the different surroundings, the engine needs to work in different states to meet the needs of the environment. For example, when a car is driving on a high-speed road, its speed needs to exceed 100 km/h, while on a city road, its speed is generally 50 km/h; when a car is driving on a downhill road, its resistance is relatively small; when it is driving on a straight road, its resistance is relatively small, and when it is driving on an uphill road, its resistance will increase to a great extent, and so on. Under different driving conditions, the transmission plays its role, changing the transmission ratio to meet the traction requirements of different driving conditions, so that the engine works in the best state.
2, realize reversing driving
The two function of the transmission is to reverse driving. In real life, it is often necessary to make the car go backwards, but the crankshaft of the engine can only turn in one direction. Then the problem arises. How can reverse drive be realized? The main contributor to this function is the transmission, because there is reverse gear in the transmission, so we can make the car go backwards.
3, interrupt power transmission, achieve neutral gear.
The three function of the transmission is to interrupt power transmission and achieve neutral gear. When the clutch engages, the transmission does not output power, and when the clutch does not engage, but in neutral gear, the transmission can also achieve no output power. This function of the transmission enables the driver to leave the driving seat when the vehicle is not extinguished. When the engine starts, the car shifts or needs to stop, the transmission interruption power transmission function is also needed.