Hoisting system of large tonnage bridge erecting machine

Abstract

The invention discloses a hoisting system for a novel large-tonnage bridging machine. The hoisting system includes guiding pulley assemblies, a hoisting crown block longitudinal beam, fixed pulley assemblies, a hosting trolley running mechanism, movable pulley assemblies, a hoisting assembly, a hoisting cart frame, a hoisting cart running mechanism, a left platform, a right platform, a left winch, a right winch and a longitudinal movement driving mechanism, wherein a single hoisting assembly and / or two hoisting assemblies are connected to the bottom of each two sets of movable pulley assembles. The hoisting system for the novel large-tonnage bridging machine is compact, concise and reliable in structure, and greatly reduced in whole weight; the new stringing mode also meets the requirement of the winch on winding a rope for two layers while meeting the deflection requirements of the rope, so that the service life of the steel wire rope is improved, and uniform stress of each hoisting rod on the hoisting assembly is ensured. Under the premise of usage technical requirement, the size of the support leg carrier roller box can be minimal, and the manufacture cost of the bridging machine is reduced.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a lifting system of a large-tonnage bridge erecting machine. Background technique [0002] With the continuous development of science and technology and infrastructure in our country, especially in the construction of highways and high-speed railways, various new technologies and new equipment have been widely used and promoted, which has improved the construction speed and quality of railways and highways. [0003] There are currently the following problems in the erection of large-tonnage highway beams: the synchronization of the lifting system and the beam transport vehicle during the beam feeding operation, the reliability and stability of the lifting system's heavy load and no-load longitudinal movement, in a limited space The rope-threading problem of large-magnification movable and fixed pulley blocks, and the problem of balanced force on the multi-...

AI Technical Summary

Problems solved by technology

[0003] There are currently the following problems in the erection of large-tonnage highway beams: the synchronization of the lifting system and the beam transport vehicle during the beam feeding operation, the reliability and stability of the lifting system's heavy load and no-load longitudinal movement, in a limited space The rope-threading problem of large-magnification movable and fixed pulley blocks, and the problem of balanced force on the multi-hanging point hole suspenders of large-tonnage highway beams have become one of the difficulties in beam erection construction, and they are also urgently needed for the middle support devices of existing bridge erecting machines. Technical issues resolved

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