The motor output shaft diameter is 14mm, and the speed is 3000 revolutions per minute. A harmonic reducer with a drive ratio of 80 is required. Read a lot of information, did not tell the reducer input shaft size, how to determine?. Only its transmission ratio and load are determined.
The robot reducer usually uses harmonic reducer and RV reducer (that is cycloid pin gear reducer). At present, the best is the radial differential reducer (it is evolved from the automobile differential). The process of harmonic reducer, including Japan, has also been improved; RV reducer technology is mature, the crankshaft process is difficult, the diameter difference reducer is sub RV deceleration device is modified to cancel the crankshaft, excellent technology and more mature and superior, the diameter difference of sub transmission ratio can reach infinity (practical single differential gear and ring gear tooth number ratio number)
The radial differential reducer has great transmission power (harmonic reducer, industrial robot load 10Kg, diameter deviation, sub reducer, industrial robot can load 2000Kg). The CNOOC adopts foreign planetary reducer of submersible pump can only use 9 "(228.6mm) and the Shenyang University in Liaohe Oilfield wellhead, the son of your prince Dr. reducer of submersible pump can break 5" (127mm) (i.e. small wellhead diameter is less than 105mm sent a reducer load up to 35KW power). Gd980, SIASUN etc. the intention of contributions received sub diameter difference transmission technology Co Ltd, Japan is one of the development of the robot China pressing big three reducer bottleneck trip.
The volume ratio is two of a harmonic reducer (i.e. the volume modulus is two times harmonic reducer), harmonic reducer and flexible transmission, the diameter difference of sub rigid reducer drive, rigid robot drive buffer stroke in place shorter and small RV reducer, reducer torque diameter difference sub large volume for each small robot joint. The diameter difference of sub reducer and planetary reducer is less than the efficiency of harmonic reducer and RV reducer, so a lot of harmonic reducer transmission efficiency is lower than 0.8, the diameter difference of sub reducer planetary reducer meshing tooth number is more than five times less than the harmonic reducer and RV reducer, thus the diameter difference sub reducer theoretical accuracy only the higher harmonic reducer reducer is difficult to surpass RV.
