mångstegsväxel

A mångstegsväxel, or multi-stage gearbox, is a mechanical device used to transmit rotational power between an input shaft and an output shaft, altering the speed and torque of the rotation. It achieves this through a series of gear reductions, typically arranged in sequential stages. Each stage consists of at least one input gear and one output gear, where the teeth of one gear mesh with the teeth of another.

The primary function of a mångstegsväxel is to provide a larger range of speed and torque ratios than a single-stage gearbox can offer. By cascading multiple reduction stages, a significantly lower output speed with a correspondingly higher output torque can be achieved. Conversely, in some applications, it can also be configured to provide speed increases, though this is less common for typical reduction gearboxes.

The design of a mångstegsväxel involves careful selection of gear ratios for each stage to achieve the desired overall transmission characteristics. The compactness and efficiency of the gearbox are critical design considerations, as are the materials used for the gears and bearings to ensure durability and longevity. They are commonly found in applications where high torque is required at low speeds, such as in industrial machinery, electric vehicles, and heavy-duty equipment. The overall gear ratio of a mångstegsväxel is the product of the individual gear ratios of each stage.