Synchronous Telescopic Mechanism of Truck-mounted Crane

Abstract

The application provides a synchronous telescopic mechanism for a truck-mounted crane, which includes a basic arm, a first telescopic arm, a second telescopic arm, and a third telescopic arm that are sequentially socketed in the basic arm, a multi-stage telescopic oil cylinder and a rope row mechanism , the rope row mechanism includes a first boom rope assembly, a second boom rope assembly, a first retractable boom rope assembly and a second retractable boom rope assembly, and the multi-stage telescopic oil cylinder includes a piston rod, a primary cylinder, The secondary cylinder and the bracket arranged at the end of the secondary cylinder away from the primary cylinder, the first outrigger rope assembly includes a first outrigger wheel and a first outrigger rope, and the second outrigger The boom rope assembly includes a second boom rope assembly and a second boom rope assembly, the first boom rope assembly includes a first boom rope assembly and a first boom rope assembly, and the second boom rope assembly includes a second boom rope assembly wheel and the second retractable arm rope, the synchronous telescopic mechanism has the characteristics of simple structure and convenient installation.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a synchronous telescopic mechanism of a truck-mounted crane. Background technique [0002] In the prior art, the synchronous telescopic mechanism of the four-section boom truck-mounted crane has two telescopic methods, one is to use a single-stage telescopic cylinder plus multiple sets of rope row components for synchronous telescopic control, and the other is to use multiple single-stage telescopic cylinders synchronous control. If a synchronous telescopic mechanism with a single-stage telescopic cylinder and multiple sets of rope row components is used, under heavy load conditions, the thrust of the single-stage telescopic cylinder is limited, and it is impossible to reliably realize the simultaneous telescopic expansion of the four-section boom; Oil cylinders are used for synchronous control. Due to the limited space of the boom of the truck-mounted crane and high safety ...

AI Technical Summary

Problems solved by technology

If a synchronous telescopic mechanism with a single-stage telescopic cylinder plus multiple sets of rope row components is used, under heavy load conditions, the thrust of the single-stage telescopic cylinder is limited, and it is impossible to reliably realize the synchronous telescopic expansion of the four-section boom; Oil cylinders are used for synchronous control. Due to the limited space of the boom of the truck-mounted crane and high safety requirements, it is inconvenient to install multiple single-stage telescopic cylinders in the boom with limited space, and its own weight is too heavy, which is not convenient for the use of the truck-mounted crane.

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