1results about How to "Guaranteed final performance" patented technology

The present application relates to mechanical assembly technical field, specifically, a kind of umbrella hoisting device and the hoisting method of gear hub type parts.The device includes: middle pole, multiple pin holes are provided on it along the axial direction;Ring is arranged on the top of middle pole;Movable hinge base is arranged on middle pole through sliding sleeve;Pin is arranged in sliding sleeve and cooperates with selected pin hole;Fixed hinge base is arranged on the bottom of middle pole;Multiple claw pole upper part is hinged with movable hinge base, and lower end is bent to form support claw;Multiple connecting rod two ends are respectively hinged with fixed hinge base and corresponding claw pole middle lower part;Pressing assembly is arranged on each claw pole and located above support claw.Movable hinge base moves relative to middle pole axial direction, and claw pole is driven to fold or unfold by connecting rod.The present application realizes axial two-way clamping to gear hub type parts annular boss by support claw and pressing assembly, avoids damaging internal tooth surface, has the advantages of compact structure, convenient operation, strong adaptability, hoisting stable and reliable.