A retractable sleeve device and its measurement and control method

Abstract

The invention discloses an expandable and retractable sleeve device and a measurement and control method thereof. A tensioning guide device is added to the unfolding cable mechanism of the cable part in the existing self-unlocking and retractable sleeve device, which can automatically Tension unwinds the cable. The invention also has a set of measurement and control system, which can control the sleeve device and automatically record the detection data on the host computer. In the present invention, the locking part has two kinds of mechanical lock structures, which can be replaced with each other; thus, without changing the structure of the sleeve device, switching between different types of mechanical locks can be realized, and then various locking principles can be tested through a set of control system. The present invention has the advantages of: preventing the expansion of the pull wire from loosening during the unlocking process of the sleeve device; at the same time, the sleeve device is controlled, and the detected relevant data is automatically recorded on the host computer, the operation is convenient and intuitive, and the data is easy to process; The structural form and parameters are optimized by using the obtained parameters, so that the final product is more high-quality and 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

Images