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公开(公告)号：US20230348234A1
公开(公告)日：2023-11-02
申请号：US17886484
申请日：2022-08-12
发明人： Zeqiang ZHANG , Yanqing ZENG , Hongbin ZHENG , Silu LIU , Tengfei WU , Wenming CHENG
摘要： The present invention discloses a pressing and stretching structure and a clamping structure of a container spreader, and belongs to the technical field of crane accessories. The pressing and stretching structure comprises a telescopic rod, a rotating mechanism and a guiding cylinder which is arranged vertically; a radially telescopic pin is arranged in the guiding cylinder and stoppers are arranged at a lower end; a first annular lug boss and a second annular lug boss are arranged at an interval from top to bottom on an outer wall of the telescopic rod; a sliding bush is sleeved between the first lug boss and the second lug boss; and the rotating mechanism is used for making the telescopic rod and the guiding cylinder to move relatively so that the limiting rod on the telescopic rod reaches the positions of the lower end surface and the upper end surface of the stoppers.
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2.发明申请公开(公告)号：US20210294933A1
公开(公告)日：2021-09-23
申请号：US17337821
申请日：2021-06-03
发明人： Zeqiang ZHANG , Silu LIU , Wei LIANG , Chao GUAN , Hongbin ZHENG , Junqi LIU , Xiaoyue FANG
摘要： A two-stage method for a double-row intelligent layout of a workshop based on multiple constraints. The minimum logistics cost function of the double-row intelligent layout is established as the objective function, and the constraints of the function model are established at the same time, to generate the LP model. The initial population of facilities is generated, and the fitness value of each individual in the initial population is calculated according to the LP model, so that the fitness value is used as the current optimal solution. The individual in the initial population is continuously optimized by using the VNS and PMX technologies, and the value of the objective function and optimal sequence of the optimal solution are updated by using the elite retention strategy.
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