gears & motors for robots
proposed by Prof.Satoshi Nishimura image00 / Jichi Med Univ(JAPAN)

E-mail: (snishi-tky(a-mark)ninus.ocn.ne.jp ) 　URL: (www.satoshi-celica.com ) image00
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gears & motors

harmonics drive


harmonic drive (from china)


outer gears


inner gears


anothre brand


combined
advantage: high reduction rate, high stability, small backlash, small size,


mounted with stepper


small!


Movie: play MP4 image00


belt system


timing pulley and belts


advantage: high speed, low price, easy maintenancce,

planetary gear


heavy weight, low reduction rate


14mm shafts


integrated into system

mechanical limit


limit switch for zero position

shafts, bearings, cases


shaft sizes, 5mm, 8mm, 14mm etc..


shafts are connected by couplers


assembled into system


damper for stability

fanuc corp.
for fabrication facotry, precise positioning is needed
harmonic drive is mainly used

da vinci hinotori
sugical robots, haromic drive is also used

yaskawa corp.
but speed is needed for handling, logistics, painting, welding,
sometimes, belt drive is used

unitree corp.
for humanoid robots, everything differs

QDD

recent humanoid robots use QDD products
including high-power motor, low-ratio reducer, dual position and current sensors
high speed, light weight, but without precision/stability

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