Abstract: A magneto-rheological servo speed regulator-reducer comprises a power output shaft, a planetary gear (2), an eccentric shaft (3), a left speed reduction main shaft (4), a pin gear housing (5), a cycloidal pin (6), a main bearing (7), a right speed reduction main shaft (8), a signal control line (9), a base housing (10), a clutch end plate (11), a coil iron core (12), an excitation coil (13), an input shaft bracket (14), an input bearing (15), a power input shaft (16), an input shaft oil seal (17), magneto-rheological fluid (18), a transmission clutch disc (19), a clutch cavity (20), a transmission oil seal (21), a clutch oil seal (22), an encoder (23), a transmission bearing (24), a cycloidal gear bearing (25), a cycloidal gear (26), a speed reduction main shaft oil seal (27), an eccentric bearing (28) and a transmission main shaft (29).

Abstract: A digital motor comprising a stator, an internal rotor and an external rotor; wherein the internal rotor is embedded into the external rotor, with a cavity provided between the internal and external rotors; the cavity is filled with magnetic phase-change material. The asynchronous motor comprising a rotor and a stator; the asynchronous motor adopts two groups of rotor-stator structures that are arranged coaxially; one group is a driving rotor-stator structure, including a primary stator and a primary rotor; the primary rotor is formed by embedding a primary inner rotor into a primary outer rotor, phase-change magnetic materials are filled into a cavity between the primary inner rotor and the primary outer rotor.

Abstract: A magneto-rheological servo speed regulator-reducer comprises a power output shaft, a planetary gear (2), an eccentric shaft (3), a left speed reduction main shaft (4), a pin gear housing (5), a cycloidal pin (6), a main bearing (7), a right speed reduction main shaft (8), a signal control line (9), a base housing (10), a clutch end plate (11), a coil iron core (12), an excitation coil (13), an input shaft bracket (14), an input bearing (15), a power input shaft (16), an input shaft oil seal (17), magneto-rheological fluid (18), a transmission clutch disc (19), a clutch cavity (20), a transmission oil seal (21), a clutch oil seal (22), an encoder (23), a transmission bearing (24), a cycloidal gear bearing (25), a cycloidal gear (26), a speed reduction main shaft oil seal (27), an eccentric bearing (28) and a transmission main shaft (29).