The invention relates to a prefabricated box girder protection lifting appliance which comprises a flange plate protection device arranged at a selected lifting point position of a prefabricated box girder and a main cross beam, right crank arms are arranged at the left end and the right end of the main cross beam, bending parts are arranged at the lower ends of the left crank arms and the right crank arms, and the bending parts are arranged on the lower side of an upper wing plate of the prefabricated box girder. The bent part is provided with a fixing assembly so that the flange plate protection device can clamp the upper flange plate, and the lower side of the bent part is fixedly connected with a pull ring. A bottom plate protection device is further arranged and comprises a flexible strip-shaped piece arranged at the bottom of a bottom web of the prefabricated box girder, one end of the flexible strip-shaped piece is connected with a pull ring of the right crank arm, the other end of the flexible strip-shaped piece is connected with a pull ring of the left crank arm, corner protection steel plates are arranged at the positions, corresponding to the corners of the two sides of the bottom web, of the flexible strip-shaped piece, and a euphroe is arranged on the flexible strip-shaped piece. A main hoisting steel wire rope is further arranged and bypasses the bottom of the prefabricated box girder, the two ends of the main hoisting steel wire rope are connected with the crown block hoisting beam, and the flange plate protection device and the bottom plate protection device are sleeved with the main hoisting steel wire rope.
本发明涉及一种预制箱梁保护吊具,包括设置于预制箱梁选定吊点位置的翼缘板保护装置,包括主横梁,主横梁左端设置有左、右端设置有右拐臂,左、右拐臂下端设有弯曲部,弯曲部设置于预制箱梁上翼板下侧,弯曲部设置有固定组件从而使翼缘板保护装置卡固上翼板,弯曲部下侧固接有拉环;还设有底板保护装置,包括设置于预制箱梁底腹板底部的柔性带状件,柔性带状件一端与右拐臂的拉环连接,另一端与左拐臂的拉环连接,柔性带状件上对应于底腹板两侧的拐角设置有拐角保护钢板,柔性带状件上设有紧绳器;还设有主吊钢丝绳,主吊钢丝绳绕过预制箱梁底部,其两端与天车吊梁连接,主吊钢丝绳套设有翼缘板保护装置和底板保护装置外部。
Prefabricated box girder protection lifting appliance
预制箱梁保护吊具
2023-12-26
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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