Stretchable sleeve device and measuring and control method thereof

Abstract

The invention discloses a stretchable sleeve device and a measuring and control method thereof. A tensioning guide device is added in a spreading bracing wire mechanism of the bracing wire part in an existing self-unlocking stretchable sleeve device, and a bracing wire can be automatically tensioned and stretched in a large range. The stretchable sleeve device further comprises a measuring and control system. The measuring and control system can control the sleeve device and can automatically record detecting data on an upper computer. A locking part comprises two mechanical locking structures, and the two mechanical locking structures can carry out replacement mutually. Therefore, conversion of mechanism locks of different forms is achieved under the condition that the structure of the sleeve device is not changed, and then multiple locking principles are tested through one set of control system. The stretchable sleeve device and the measuring and control method thereof have the advantages that the phenomenon that the stretched bracing wire is loosened in the unlocking process of the sleeve device is prevented; meanwhile, the sleeve device is controlled, detected related data are automatically recorded on the upper computer, operation is convenient and visual, and the data are convenient to process; further, optimization can be carried out on the structural form and the parameters by using obtained parameters, and thus the finished products are made to be better in quality and more reliable.

Description

technical field [0001] The invention belongs to the field of mechanical technology and automatic control, and specifically relates to a retractable sleeve and a locking test method thereof, which can realize tests of different locking schemes on the same set of retractable sleeve device. Background technique [0002] The expandable and retractable sleeve device is a linear expandable mechanism, which is widely used in the fields of aerospace, vehicle-mounted antennas and portable devices. For example, a self-unlocking retractable sleeve device disclosed in the invention patent with the publication number CN102537618A is a new type of mechanically locked device driven by a wire rope. Reference information, its relevant parameters need experimental verification, measurement and optimization, but its mechanism space is limited, it is difficult to arrange conventional force sensors, and there is a lack of relevant parameter measurement methods in similar mechanisms in the past; ...

AI Technical Summary

Problems solved by technology

For example, a self-unlocking retractable sleeve device disclosed in the invention patent with the publication number CN102537618A is a new type of mechanically locked device driven by a wire rope. Reference information, its relevant parameters need experimental verification, measurement and optimization, but its mechanism space is limited, it is difficult to arrange conventional force sensors, and there is a lack of relevant parameter measurement methods in similar mechanisms in the past; and different locking methods can be derived from the above patents Structural forms, these forms have their own characteristics, but if a test device is provided for each locking structure, the cost is high and a lot of work needs to be repeated

In addition, according to the locking and unlocking principle of the above-mentioned retractable sleeve device, the length of the closed-loop loop of the wire rope will change, making the wire rope slack, and even make it fall off from the wire rope reel, while the adjustment range of the ordinary wire rope pretensioning method Small, and most need manual adjustment, can not achieve self-adjusting tension

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