Bridge erecting crane auxiliary arm quick installation mechanism

Abstract

The invention discloses a bridge erecting crane auxiliary arm quick installation mechanism. The bridge erecting crane auxiliary arm quick installation mechanism comprises a main arm and an auxiliary arm. The end of the main arm is provided with a groove for mounting of the auxiliary arm. A traction motor is fixed to the auxiliary arm. A winding wheel is fixed to the outer side of an output shaft of the traction motor. A traction steel rope is wound around the outside of the winding wheel. Two convex blocks are symmetrically mounted outside the auxiliary arm. Abutting assemblies matched with the two convex blocks are symmetrically mounted outside the main arm. A fixed insertion rod is fixed to the end, inserted into the groove, of the auxiliary arm. The inner bottom of the groove is provided with an insertion groove matched with the fixed insertion rod. The outside of the end, far away from the auxiliary arm, of the fixed insertion rod is symmetrically provided with two limiting grooves. Opposite insertion assemblies matched with the two limiting grooves are symmetrically mounted outside the main arm. The bridge erecting crane auxiliary arm quick installation mechanism implements three-time fixation on the auxiliary arm inserted at the end of the main arm in a mechanical driving mode, saves time and labor, improves the opposite insertion installation efficiency, can also preventaccidental injuries to workers and is practical and reliable.

Description

technical field [0001] The invention relates to the technical field of crane jib installation structures, in particular to a crane jib rapid installation mechanism for bridge installation. Background technique [0002] Bridges generally refer to structures erected on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that cross mountain streams, poor geology or meet other transportation needs to make traffic more convenient. A bridge is generally composed of a superstructure, a substructure, a support and ancillary structures. The superstructure is also called a bridge span structure, which is the main structure for crossing obstacles; the substructure includes abutments, piers and foundations; Or the force transmission device installed at the supporting place of the bridge abutment; the auxiliary structures refer to the bridg...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: at present, the installation and fixation between the main arm and the auxiliary arm on the crane are mostly carried out manually, which is inefficient and likely to cause danger to workers, and then proposes a Quick Installation Mechanism of Crane Jib for Bridge Installation

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