Overload protection device for planetary gears

• Main Author: CHEN LIANJIN
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2012
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses an overload protection device for planetary gears. The overload protection device for the planetary gears comprises at least one planetary gear set, a gear case housing and an overload protection plate spring, wherein each planetary gear set is arranged in the gear case housing, and the overload protection plate spring is connected with the gear case housing and is provided with elastic racks engaged with the outer walls of external gears. When hold force among the elastic racks and the outer walls of the external gears is larger than the preset force F, the elastic racks are engaged with the outer walls of the external gears, and the external gears and the overload protection plate spring are static. When an output shaft of the planetary gear sets is subjected to the produced moment larger than the preset force F, the output shaft drives planetary gears to drive the external gears to be disengaged with the elastic racks, and the planetary gears and the overload protection plate sp