Method and device for preventing impact vibration of lift system

    公开(公告)号:US11320021B2

    公开(公告)日:2022-05-03

    申请号:US16324905

    申请日:2016-12-08

    Abstract: A method and device for preventing impact vibration of a lift system include: acquiring a load weight in a lift container; obtaining preset basic parameters of a lift system; according to the load weight in the lift container and the basic parameters of the lift system, determining a fundamental wave vibration period of a lifting rope when the lift system starts; according to the fundamental wave vibration period and preset calculation parameters of the lift system, determining time-varying simulation parameters of an acceleration of the lift system during a lifting process; according to determined time-varying simulation parameters of the acceleration, lifting the lift container.

    Ultrasonic generation device and concrete forming system

    公开(公告)号:US12179385B2

    公开(公告)日:2024-12-31

    申请号:US18576732

    申请日:2023-01-10

    Abstract: An ultrasonic generation device and a concrete forming system are provided. The ultrasonic generation device includes a housing, a rotary vibration member, and a shaft body. The housing is provided with an air inlet. The rotary vibration member is disposed in the housing. The shaft body is relatively fixed to the housing, the rotary vibration member is sleeved on the shaft body, and the rotary vibration member and the shaft body are rotatable relative to each other. The shaft body is provided with a main air passage and a jet hole, a first end of the main air passage is in communication with the air inlet and a second end of the main air passage is in communication with the jet hole, the jet hole is provided in the shaft body at a position corresponding to the rotary vibration member.

    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.

    Rope replacement apparatus
    10.
    发明授权

    公开(公告)号:US12291427B2

    公开(公告)日:2025-05-06

    申请号:US18715069

    申请日:2023-02-08

    Abstract: A rope replacement apparatus includes: a rope conveying mechanism, used for driving a first rope to move along a moving path of a second rope, so as to replace the second rope; a first detection part, used for detecting a first moving speed V1 of the first rope output by the rope conveying mechanism; the first detection part being installed on the rope conveying mechanism; a second detection part, used for detecting a second moving speed V2 of the second rope outside the rope conveying mechanism; the second detection part being installed on the moving path of the second rope; a control part, used for adjusting V1 according to the difference between V1 and V2; the first detection part and the second detection part being both in communication connection with the control part. The rope replacement apparatus improves rope replacement efficiency and slipping can be reduced.

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