Lifting appliance for assembling liquid rocket

Abstract

The invention provides a lifting appliance for assembling a liquid rocket. The lifting appliance comprises a lifting supporting unit, a beam body connecting unit, an adjusting unit and two cross beamsling units. The lifting supporting unit is used for being connected with a lifting machine, the two ends of the beam body connecting unit are connected with the lifting supporting unit and the crossbeam sling units respectively, the adjusting unit is connected to the beam body connecting unit in series, and the cross beam sling units are used for being connected with a lifting point of a rocketto be lifted. In the rocket lifting process, the adjusting unit adjusts the positions of the cross beam sling units according to tension borne by the beam body connecting unit, so that the two cross beam sling units are evenly stressed. The lifting supporting unit comprises a first longitudinal beam, a first fork frame and a first lifting belt connected with the first fork frame are arranged on the first longitudinal beam, the first longitudinal beam is provided with a first fixing hole and a first adjusting hole, and the first lifting belt is used for being connected with the lifting machinein a hanging mode in the rocket lifting process. Before rocket connection and when the rocket is hoisted, the stress of the lifting point is accurately determined, and the risk that the rocket slidestowards the unbalance loading end is avoided.

Description

[0001]This application is a divisional application for an invention patent filed on July 23, 2019, titled "A full-arrow combined spreader with a large aspect ratio device", and the application number is "201910664744.6".Technical field[0002]The invention relates to the technical field of lifting of liquid rockets, in particular to a sling for liquid rocket assembly.Background technique[0003]With the rapid development of the aerospace industry, various technologies involved in the rocket field have also achieved rapid progress.[0004]At present, the launch vehicle testing and launching model has gradually emerged the "three leveling" testing launch model, which puts forward high requirements for the full-arrow horizontal lifting of the launch vehicle. Because the launch vehicle has the characteristics of heavier mass, large slenderness ratio, and long lifting point span, and the launch vehicle has strong longitudinal bearing capacity and weak lateral bearing capacity, the whole rocket...

AI Technical Summary

Problems solved by technology

[0005] However, when the launch vehicle is hoisted through three or more sets of hoisting points at the same time, there may be a situation where one of the hoisting points is under a large and unquantifiable force, which makes the hoisting process of the whole rocket have uncontrollable factors

The traditional solution is to balance the force on each lifting point by connecting multiple lifting points to each other, but under the action of friction, it is difficult to accurately determine the force on the lifting point in this lifting mode, resulting in a tendency to Risk of slippage at eccentric load end

Especially before the spreader is connected to the rocket and during the movement of the hoisting rocket, there are certain safety risks

Images