Why can gears change torque
Release Time:
2025-05-08
The main reason gears can change torque is that they achieve the conversion of speed and power through different tooth ratios. The basic principle of gear transmission is to change the output shaft's rotational speed and power through the tooth ratio between two interlocking gears. When a large gear drives a small gear, the small gear's rotational speed increases, but the output power decreases; conversely, when a small gear drives a large gear, the large gear's rotational speed decreases, but the output power increases.
The main reason gears can change torque is that they achieve the conversion of speed and power through different gear ratios. The basic principle of gear transmission is to change the output shaft's speed and power through the gear ratio between two interlocking gears. When a large gear drives a small gear, the small gear's speed increases, but the output power decreases; conversely, when a small gear drives a large gear, the large gear's speed decreases, but the output power increases.
The specific mechanism of gears changing torque
Gear ratio: The transmission ratio is the ratio of the number of teeth on the driving wheel to the number of teeth on the driven wheel. For example, if the driving wheel has 10 teeth and the driven wheel has 20 teeth, the transmission ratio is 1:2. This means that for every 2 turns of the driving wheel, the driven wheel only turns 1 turn, resulting in an increase in the torque of the driven wheel.
Torque calculation: Torque equals force multiplied by the lever arm. In a gear system, a larger diameter gear has a larger lever arm, so the same force will produce a larger torque; while a smaller diameter gear has a smaller lever arm, resulting in a smaller torque.
Application scenarios of different types of gears
Helical gears: The tooth surfaces of helical gears make contact more evenly, which can reduce noise and vibration, making them suitable for situations that require smooth operation.
Planetary gear system: By combining multiple planetary gears, torque amplification can be achieved. For example, a planetary gear system can amplify torque through combinations of gears at different levels, typically with an amplification ratio of 5 times.
Related News
Mobile client
Guangdong Likai Precision Technology Co., Ltd
Phone: 086-754-85171080 / 086-754-85178025
Email: 188366050@qq.com
Address: West side of Houcai Economic Union, Longdu Town, Chenghai District, Shantou City, Guangdong Province
Copyright © Guangdong Likai Precision Technology Co., Ltd