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Working Principle and Process Flow of Gear Reducers
Gear reducers, or speed-reducing gears, are essential components in high-speed machinery. To make the speed generated by the machine practical, it must be reduced to a lower level that meets the requirements of the intended application. The basic structure of a gear reducer consists of a large gear and a smaller gear, which rotate in tandem.
In a single-stage gear reducer, a large gear is connected to a smaller gear; for every one revolution of the large gear, the small gear makes two revolutions. The small gear rotates more quickly, but its torque is reduced.
The gear reduction process operates at a preset ratio that matches the characteristics of the input and output gears. A gear reducer achieves power transformation by altering the ratio of the driving gears.
Gear ratio
Gear ratio is a way of measuring how gears of different sizes interact to transmit power. A key aspect of this calculation is determining the circumference, which is a fundamental characteristic of a gear. By examining the circumference, one can ascertain the gear ratio. For example, if one gear completes two revolutions for every single revolution of a larger gear, the ratio is 2:1, meaning the output speed is halved.
This example simplifies a more complex gear reducer that features multiple stages of gear pairs in series, used to convert revolutions per minute (RPM) into torque. The following example illustrates a slightly more intricate gear reducer, which includes an idler gear between the pinion and the larger gear.
When determining the gear ratio, the gears that influence it are the driving gear and the driven gear. Any intermediate gears are not counted in the calculation of the gear ratio. A simple way to compute the gear ratio is to divide the number of teeth on the driven gear by the number of teeth on the driving gear. In the example, the driving gear has 7 teeth, while the driven gear has 30 teeth. The driving gear must rotate 4.3 times for the driven gear to complete one revolution.
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Shenzhen Jier Transmission Equipment Co., Ltd. is a high-tech enterprise that has been focusing on the sales, maintenance, and technical services of reducers for more than ten years. It is the core agent of world-renowned brands such as SEW reducers, NORD reducers, Bauer reducers, and Baumer sensors in Switzerland in Germany
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