| 摘要 |
FIELD: mechanical engineering; load-gripping facilities. ^ SUBSTANCE: according to invention, beam shifting drive is furnished with crank-and-connecting rod mechanisms, gears arranged on slow-speed shafts of reduction gear engage through gear joints with cranks of crank-and-connecting rod mechanisms whose cranks are installed on side walls of housing. connecting rods are hinge-connected be ends to sliders, each provided with pair of gear wheels rigidly installed on axle fitted in slider housing so that smaller gear wheel engages with rack installed on slider guide, and larger gear wheel, with rack installed on gear telescopic beam. Lock turning mechanisms include L-shaped drive levers with turning axles arranged parallel to longitudinal axis of gripping device, one end of each lever being connected by means of tie-rods with levers of locks turnable in horizontal plane and other end of said lever being connected with measuring weight and hydraulic pusher. Some guides for telescopic beams are made in form of rollers with slots and others, arranged in places of appearance of considerable loads, in form of plates with slots, plates being installed for cross displacement. Device is furnished with replaceable adjusting strips to adjust position of said plates. ^ EFFECT: improved reliability. ^ 9 dwg |
