Suspension device for monorail crane and monorail crane

    公开(公告)号:US11059497B2

    公开(公告)日:2021-07-13

    申请号:US16744248

    申请日:2020-01-16

    Abstract: Provided are a suspension device of a monorail crane and a monorail crane. The suspension device includes a suspension box and at least one set of suspension wheels; the suspension box is provided with a receiving groove for receiving at least one set of the suspension wheels; the receiving groove is provided with a first suspension wheel and a second suspension wheel; a first gap is formed the first suspension wheel and the second suspension wheel; the monorail includes at least a first track on which the first suspension wheel is placed and a second track on which the second suspension wheel is placed; a spacer is provided between the first track and the second track; the first gap can accommodate at least the spacer; the suspension devices each further includes a braking mechanism fixed to the suspension box.

    Overwinding buffer device and method for vertical hoisting system

    公开(公告)号:US11174125B2

    公开(公告)日:2021-11-16

    申请号:US16324895

    申请日:2016-10-31

    Abstract: An overwinding buffer device and method are employed for a vertical hoisting system including a derrick and a hoisting container. A hydraulic buffer device is disposed on the derrick, the hydraulic buffer device including at least one buffering hydraulic cylinder and buffering pressure rollers disposed corresponding to the buffering hydraulic cylinders; the buffering hydraulic cylinders are disposed on the derrick; piston rods of the buffering hydraulic cylinders are disposed horizontally and outer ends of the piston rods face towards the hoisting container; the buffering pressure rollers are horizontally fixed on an outer side wall of the hoisting container and arced surfaces of the buffering pressure rollers face towards the piston rods of the buffering hydraulic cylinders.

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