What kind of reducer is better for horizontal multi joint robot?
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 for single tooth difference), the volume ratio of two is 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.
The level of SCARA-Selective Copmliance Assembly on the multi joint robot Robot Arm reducer is as small as possible, before all harmonic reducer, reducer robot generally used harmonic reducer and RV reducer (i.e. cycloid reducer), the best or sub diameter difference reducer (it is the automobile differential evolved).
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.
