30-07-2008 дата публикации
Номер: CN0101230750A
Автор:
HONG YINGWU,
GONG JIAN,
WANG XUEBING,
MIU QIUXIA,
LIU WEI,
HENG JINFANG,
LU QINGHUA,
YINGWU HONG,
JIAN GONG,
XUEBING WANG,
QIUXIA MIU,
WEI LIU,
JINFANG HENG,
QINGHUA LU
Принадлежит:
The invention discloses a core through typed self-lifting full hydraulic stepping lifter and a method for lifting a construction platform. The core through typed self-lifting full hydraulic stepping lifter comprises a lift rod, a hydraulic lifting system and a PLC control system. The hydraulic lifting system comprises a base, an oil cylinder body, a lower part locking device, a piston rod, a guide sleeve, an upper part locking device and a cylinder cover. The upper part of the oil cylinder body is fixedly connected with the cylinder cover, and the lower part is fixedly connected with the base. The lower part locking device is arranged in the base, the upper part locking device is arranged at the upper end of the piston rod, and an upper offsetting spring is arranged between a sealing cover arranged at the upper end of the piston rod and the upper part locking device. The guide sleeve is arranged between the lift rod and the piston rod, and a lower offsetting spring is arranged between the ...
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