Adjustment locking mechanism for spatial attitude of suspended type large-scale member

Abstract

The invention discloses an adjustment locking mechanism for spatial attitude of a suspended type large-scale member, comprising a portal type steel frame and a servo car arranged in the horizontal plane. Lifting motors are arranged on a cross beam of the portal type steel frame, the lifting motors are connected with suspension points on the member through arranged tightwires and lift the upper part of the member, the servo car is connected with a supporting point on the member and supports the lower part of the member, and the spatial attitude of the member is adjusted by adjusting the length extended by the tightwires. The member is provided with a limit point, a limit mechanism for limiting lateral displacement of the limit point is arranged between the limit point and the portal type steel frame, and / or a positioning mechanism is arranged between the servo car and the horizontal plane. The invention has the advantages of simple design, low cost, easy implementation and high reliability; and the attitude positioning requirements of the member can be greatly improved by arranging the limit mechanism and / or the positioning mechanism so as to improve the attitude measuring accuracy of the member.

Description

technical field [0001] The invention relates to an adjustment and locking mechanism of a large-scale component space attitude based on a suspension mode. Background technique [0002] With the rapid development of modern manufacturing technology, various large-scale facilities, equipment and equipment are more and more widely used in national defense, industrial and civil fields, such as aircraft, ships, spacecraft, long-span structures and various astronomical telescopes. Most of these facilities and equipment are composed of a class of thin-walled component units with similar dimensions and functions, such as bulkheads of aircraft, ships and spacecraft, aircraft wings, roofs of long-span structures, and reflections of astronomical telescopes. face unit, etc. The lateral dimensions of these component units are generally large, and they are often in a continuously changing spatial posture during installation. Due to the progress of modern material science and processing te...

AI Technical Summary

Problems solved by technology

Due to the huge size of the components, a large stroke is usually required to adjust to a given attitude angle, which puts forward higher requirements on the expansion ratio of the actuator, and when the expansion ratio reaches a certain upper limit, it usually leads to sideways movement of the actuator screw rod. The stiffness becomes worse, which not only affects the precise adjustment of attitude, but also cannot effectively lock and restrain the components after adjustment, so as to complete the normal test

Larger lateral deformations, in turn, will lead to difficulties in extending and retracting the actuators, thereby limiting the effective working space of such attitude adjustment mechanisms

In addition, when the attitude angle is large, the attitude of the actuator is tilted as the horizontal displacement of the support point of the component changes significantly, which affects the precise control of the strokes of the three actuators

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