Pre-tightening force adjusting device and method of tension guiding mechanism

Abstract

The invention provides a pre-tightening force adjusting device and method of a tension guiding mechanism, and belongs to the technical field of aerospace assembly. The to-be-adjusted tension guiding mechanism is fixed to one side of a fixing seat of the adjusting device, and thus a rotating shaft of the tension guiding mechanism and a rotating shaft of the adjusting device are fixedly connected; arotating wheel is rotated to drive a volute spring of the tension guiding mechanism to be tightly coiled or uncoiled; when the preset position is reached, braking is conducted through a brake, and the volute spring is always in the current state to achieve pre-tightening of the plane volute spring; torque is measured through a torque wrench, and by combining with the positions of clamping grooveswhich are evenly distributed in the circumference, the working position of the plane volute spring when a solar battery array is expanded can be accurately found; and the pre-twisting angle of the plane volute spring is precisely set to be + / - 5 degrees, the output torque is precisely controlled to be + / - 0.04 Nm, and the adjusting efficiency and accuracy of the tension guiding mechanism are improved.

Description

technical field [0001] The invention relates to the field of aerospace assembly, in particular to a device and method for adjusting the pretightening force of a tension guide mechanism. Background technique [0002] Such as figure 1 As shown, the tension guide mechanism is an important part of the large-area flexible wing, which includes a housing 1, a first rotating shaft 2, a scroll spring 3 and a winding wheel assembly 4, and the first rotating shaft 2 passes through the On the housing 1 and is rotatably connected with the housing 1, the scroll spring 3 is located in the housing 1, and one end is fixedly connected to the first rotating shaft 2 through the coil spring inner end fixing member 5, and the other end It is fixedly connected with the reel assembly 4 and is used to provide rotational force to the reel assembly 4. The reel assembly 4 is located outside the housing 1 and is rotatably connected to the first rotating shaft 2. The first end of the winding wheel asse...

AI Technical Summary

Problems solved by technology

[0004] In the above method, in the process of adjusting the spring torque of the volute, there are repeated operations of rotating the winding wheel and the rotating shaft. Hands can only be released after reaching the flexible wing, which increases the difficulty of operation and lower efficiency; at the same time, due to the instability of manual operation and the irregular shape of the torque wrench, it can only roughly interpret the rotation angle of the shaft, and the position accuracy is poor

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