For most gears, backlash is provided for smooth engagement between two gears and rattling is generated by collision of the teeth due to this backlash while the gears rotate.
Scissors gears have been used to reduce the rattling. The scissors gear is applied to a driving gear or a driven gear and one gear is connected with the other gear by a scissors spring. Accordingly, when the teeth of a counterpart gear are engaged with the scissors gear, the teeth of the scissor gear are engaged with the teeth of the counterpart gear like scissors, such that backlash is removed and operational noise of the gears is reduced.
A scissors gear is composed of a set of two gear bodies. One gear body is connected to the other gear body by a Revolute joint and a Rotational spring.
Gear geometries are created from the parameters of ISO standards. The tooth profile is represented to multiple arcs. The sprocket tooth geometry data is:
•Created from a predefined data file.
•Edited from a predefined data file.
•Exported from a predefined data file.
•Imported from a predefined data file.
Figure 1 Scissors Gear
Figure 2 Scissors icon of the Gear group in the Gear tab