A composite tether retracting device for measuring attitude angle and tension of space tether assembly

Abstract

The invention discloses a tether winding and unwinding device combining tethered system combination attitude angle and tension measurement. A six-dimensional force measurement part, a tether guide part, a tension pretightening part, a tether length measurement part, a tether arranging part and a tether winding part are sequentially installed in a shell in the length direction of the shell. The device has the functions that the tether attitude angle is measurable, the tether length is measurable and controllable, and the tether tension is measurable and controllable, and by arranging the tether arranging part, tethers can be uniformly arranged on a winding drum when too many tethers are wound back on the winding drum, so that the collapsing phenomenon caused by the fact that the tethers crowd and press mutually is avoided. The tether attitude angle and the tether tension can be obtained by utilizing tension components of the tether on coordinate axes of a coordinate system of a six-dimensional force sensor body through calculation, that is to say, the tether tension and the tether attitude angle can be indirectly measured simultaneously through one force sensor. The device has the advantages of being high in tension precision, wide in tension measurement range (the largest controllable and measureable tension is 200 N), large in tether size (the largest tether length is 200 m) and the like.

Description

technical field [0001] The invention relates to a space tether retractable device, in particular to a tether retractable device which combines attitude angle and tension measurement of a space tether assembly. Background technique [0002] Space tether systems generally use flexible tethers that are easy to coil. During the on-orbit operation of the system, it is generally necessary to control the length or tension of the tether through the tether coiling mechanism connected to the end of the tether. Therefore, the design and performance of the tether take-up mechanism play a very important role in whether the space tether system can successfully complete the task. For example, in the above-mentioned TSS-1 on-orbit test, the technical failure of the tether release mechanism made the tether It broke due to excessive tension, resulting in the failure of the mission. For the space tether system, the tether control mechanism is the actuator that controls the length, velocity an...

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Problems solved by technology

Therefore, the design and performance of the tether take-up mechanism play a very important role in whether the space tether system can successfully complete the task. For example, in the above-mentioned TSS-1 on-orbit test, the technical failure of the tether release mechanism made the tether Broken due to excessive tension, resulting in mission failure

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