Engrenage à vis sans fin droit angulaire en acier en laiton personnalisé et arbre d'engrenage à vis sans fin

Qu'est-ce qu'un engrenage à vis sans fin?
Un engrenage à vis sans fin est un engrenage à arbre décalé qui crée un mouvement entre les arbres à l'aide de filetages qui sont coupés dans une barre cylindrique pour réduire la vitesse. The combination of a worm wheel and worm are the components of a vis sans fin. Speed reduction is determined by the number of worm threads and the number of teeth on the worm wheel.
Les avantages des engrenages à vis sans fin incluent la réduction du bruit et des vibrations ainsi que la compacité. They are made of hardened metals because of the amount of heat they generate.
How Worm Gears are Made
A worm gear is the most compact type of gearing system. They are capable of being placed in very small spaces and still providing high ratio speed reduction. With proper mounting and installation, worm gear systems operate smoothly and quietly.
The typical method for fabrication worm gears is hobbing using a hob or cutting tool; this cutting tool is similar to the gear with which the worm gear will mate. Worms can be turned, hobbed, milled, or ground.
How are Worm engrenages being made
Taillage
Hobbing is a method for producing gear teeth using a set of customized bits that are designed to make the correct pitch for the gear’s application. Hobbing is a cold working forging process where a punch with the correct geometry is pressed into the workpiece.
The tool that is used, the punch, is referred to as a hob and is made of hardened steel that forms a helical hob cutter. The pressure and cold forging produce very accurate dimensions and excellent surface quality in the cavities.
Hobbing machines are fully automated and come in a wide variety of sizes to enable them to produce extremely small gears as well as large gears. The two parts of a hobbing machine include two spindles—one to hold the workpiece and one to hold the hob.
Types of Worm Gears
L'un des principaux avantages des engrenages à vis sans fin est leur capacité à offrir une réduction de vitesse et une multiplication de couple dans un faible encombrement. The construction of a worm gear includes a large worm wheel that has a shallow thread and is connected to a perpendicular axes, non-intersecting gear.
For worm gears, the positioning and assembly of the teeth is critical since a very strict tooth design is required for the wheel gear and the worm gear to determine how the gears meet. Variations are dependent on how the gears touch.
The two basic types of worm gears are cylindrical or straight and cone or double enveloping. The faces of worm gears are broken into straight, hobbed, and concave. Cylindrical worms are the most common and widely used.