The invention relates to the field of box girder hoisting, in particular to a hoisting device for a prefabricated box girder of a viaduct, the lower end of a traction rope is fixedly connected with a supporting table, a jacking mechanism is arranged on the top surface of the supporting table, and the output end of the jacking mechanism is fixedly connected with a supporting block; pull ropes are fixedly connected to the four portions of the supporting block and penetrate through the supporting table, and the left side and the right side of the bottom face of the supporting table are each provided with a set of lifting ropes; a transverse positioning device is clamped to the upper end of the middle of the prefabricated box girder, and longitudinal positioning devices are fixedly connected to the left and right sides of the prefabricated box girder; the two groups of lifting ropes are connected to the left part and the right part of the prefabricated box girder in a winding manner; the ends of the front pull rope and the rear pull rope are connected to the two push plate control mechanisms respectively. The ends of the left pull rope and the right pull rope are connected with the hydraulic control mechanisms on the two sides respectively. The left side and the right side of the pile body are positioned and limited by the prefabricated box girders through the transverse positioning devices, the distance between the prefabricated box girders is positioned and limited through the longitudinal positioning devices, and the adjustment difficulty of small deviation during hoisting of the prefabricated box girders is reduced.
本发明涉及箱梁吊装领域,更具体地涉及一种高架桥预制箱梁吊装装置,牵引绳下端固定连接有托台,托台的顶面上设置有顶升机构,顶升机构的输出端固接有托块;托块上位于四部均固定连接有拉绳,四根拉绳贯穿托台设置,托台的底面上左右两侧各设一组吊绳;预制箱梁中部上端卡接有横向定位装置,预制箱梁左右两侧均固定连接有纵向定位装置;两组吊绳缠绕连接在预制箱梁的左部和右部上;前后两个拉绳的端部分别连接在两个推板控制机构上;左右两个拉绳的端部分别与两侧液压控制机构连接;通过横向定位装置使得预制箱梁对桩体的左右两侧进行定位限定,纵向定位装置使得预制箱梁之间的距离进行定位限定,减小预制箱梁吊装时对于小幅偏差的调整难度。
Lifting device for prefabricated box girder of viaduct
一种高架桥预制箱梁吊装装置
2025-02-21
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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