Bridge pier lifting machine for cross-sea bridge construction

Abstract

The invention relates to the technical field of lifting machines, in particular to a bridge pier lifting machine for cross-sea bridge construction. The bridge pier lifting machine comprises a balanceframe, an extension frame is arranged on the surface of the balance frame, a cross rod is arranged on the surface of the extension frame, the cross rod penetrates through clamping arms, meshing toothed plates are arranged on the surfaces of the clamping arms, and the meshing toothed plates are in meshing connection with driving fluted discs; and a pin shaft is sleeved with the driving fluted discs, the pin shaft is inserted into the surface of the mounting frame, the mounting frame is fixed to the top face of the extension frame, the outer side of the pin shaft is sleeved with a driven belt wheel, and the driven belt wheel is connected with a driving belt wheel through a transmission belt. The bridge pier lifting machine for cross-sea bridge construction has the beneficial effects that theclamping arms are additionally arranged on the two sides of the balance frame, the clamping force of the clamping arms is adjusted through cooperation of the meshing toothed plate and the driving fluted disc, and compared with the mode that a bridge pier is bound through a rope alone, the firmness is better when the bridge pier is clamped through the clamping arms.

Description

technical field [0001] The invention relates to the technical field of hoisting machines, in particular to a bridge pier hoisting machine used for the construction of large cross-sea bridges. Background technique [0002] The bridge pier is a substructure that supports the bridge span structure and transmits the dead load and vehicle live load to the foundation, and the bridge abutment is located on the two lakes of the bridge. The piers are between the two abutments. The function of the bridge pier is to support the bridge span structure: the surface abutment support not only plays the role of supporting the bridge span structure, but also connects with the embankment and prevents the embankment from slipping. In order to protect the analysis platform and embankment filling, some protection and diversion projects are often done on both sides of the analysis platform; the hoist uses the winding function of the hoist to control the length of the rope that pulls the heavy obj...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the pier is only bound and hoisted by ropes during the hoisting process of the bridge pier, which has poor firmness, and there is a potential safety hazard of falling off, and the tightness of the tied rope is not firm through manual adjustment; In the middle, it will cause the pier to shake left and right, and the weight of the pier itself causes its inertia to be large. When it is transported to the designated location, it is difficult to stop the pier from shaking in a short time, which will affect the construction efficiency; due to the heavy weight of the pier, a single During the hoisting process, the hoist connected by the rope is difficult to maintain balance, and the safety performance is low

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