REVERSING TRANSMISSION GEAR Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: driving gear-wheel engages two driven bevel gear-wheels and is installed on output shaft. Second and third driving bevel gear-wheels are in mesh with two pairs of auxiliary driven bevel gear-wheels. They are positioned on input shaft in succession by means of two controlled couplings. Some of similar links of each of planetary mechanisms are coupled to driven bevel gear-wheels, and other similar links of these planetary mechanisms are coupled to output shaft through friction members. Third link of each of planetary mechanisms is coupled to that link of other planetary mechanism which is coupled to driven bevel gear-wheel. Cylindrical satellite gears are coupled with their auxiliary rims to cylindrical rims of auxiliary driven bevel gear-wheels. Transmission ratios of toothed pairs formed by second and third driving bevel gear-wheels with corresponding auxiliary driven bevel gear-wheels are not equal. EFFECT: imparting of three auxiliary speeds to output shaft. 2 dwg