LOAD-LIFTING TABLE

摘要

FIELD: mechanical engineering; scissor-type lifting facilities. ^ SUBSTANCE: proposed load-lifting table contains base and movable platform. Base and platform are mechanically intercoupled by main and additional pairs of scissor-type crossing levers. Long and short axles are installed in joints of crossing levers of main and additional pairs. Movable platform lifting drive in form of power cylinder is placed between base and movable platform. Base of said cylinder is mounted on short axle. Said cylinder is coupled by rod with long axle. Load-lifting table is furnished with movable platform emergency interlock. Said interlock is made at least in form of one housing installed for demounting on long axle and enclosing of cable. One end of cable is passed through diametric hole of long axle of additional pair of crossing levers being spring loaded relative to axle. Housing is made hollow and conical. Hollow rod, at least three spherical bodies and elastic member are installed in space of housing with conical surface coaxially and enclosing the cable for returning into initial position. Spherical bodies are installed in radial channels of hollow trod for simultaneous engagement with space of housing and with cable. ^ EFFECT: improved operating reliability. ^ 3 cl, 8 dwg