| 摘要 |
agricultural engineering; material handling facilities. SUBSTANCE: proposed manipulator has base with mounting brackets and telescopic supports, slewing column secured for turning around vertical axle of base and provided with hinge-mounted boom, arm with load gripping hook, boom and arm control hydraulic drives and slewing column control mechanism with hydraulic drives. Base is made in form of hollow cylinder with radially orientated upper and lower beams. Lower beams are furnished with telescopic supports. Axle of upper beam is arranged at angle relative to base axle, extreme end of the beam being pointed upwards, and projection of beam being located midway between corresponding lower beams. Slewing column is made in form of hollow rod arranged in space of base cylinder. Slewing mechanism is provided with tier-mounted single-arm and double-arm levers secured for free turning on slewing column, and single-arm lever rigidly coupled with slewing column. Base of one of hydraulic drives is connected with extreme end of upper inclined beams of base, its rod being coupled with free end of rotating single-arm lever. Ends of double-arm lever are hinge-coupled with bases of pair of other hydraulic drives, rod of one of these drives being mounted on free end of lever of slewing column, and rod of other drive being mounted on free end of rotating single-arm lever. EFFECT: enlarged range of boom turning angles and arm reach, simplified design and reduced dynamic loads at extreme sections of column turning. 3 cl, 1 dwg
|
