Скачать с ютуб Lantern pinion as a special case of cycloidal gear в хорошем качестве

Lantern pinion as a special case of cycloidal gear

A special case of cycloidal gear with point gearing is the so-called lantern pinion. A disk with pins meshes with the teeth of a cycloidal gear. The tooth profile is created by rolling a circle on a base circle. The base circle corresponds to the pitch circle of the gear and the rolling circle corresponds to the pitch circle of the pinion. The resulting trajectory during rolling describes the shape of the cycloid. The drawing point of the cycloid is extended to form a circle to reduce wear, when the components later mesh. The diameter of the circle corresponds to the diameter of the trundles. The envelope of the rolling trundle then describes the shape of the tooth profile. Thus, the tooth shape results from an equidistance to the cycloid. To construct the lantern pinion, the trundles are arranged in a circle with their centers on the rolling circle. In practice, the cycloidal shape of the tooth profile is often approximated by an involute because it is easier to manufacture. If a larger and larger rolling circle is used to design the cycloidal gear, in the extreme case a rolling straight line is obtained. Instead of a cycloid, you get an involute for the tooth profile, and instead of a cycloidal gear, you get a gear with involute teeth! The trundles are then arranged in a straight line and you get a drive rod. 00:00 What is a lantern pinion? 00:17 Design of the lantern pinion and lantern gear 01:14 Application of lantern pinions (advantages and disadvantages) 01:38 Line of action / contact 02:23 Special case of a lantern gear: The drive rod