Product adaptation loading device for a cylindrical aircraft and loading control method thereof

By designing a bidirectional hydraulic cylinder and composite force transmission components, combined with a PID control model and array layout, the problems of inaccurate loading and safety hazards in cylindrical aircraft were solved, achieving a high-precision and safe loading process and data recording.

CN122126475APending Publication Date: 2026-06-02NO 59 RES INST OF CHINA ORDNANCE IND +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NO 59 RES INST OF CHINA ORDNANCE IND
Filing Date
2026-03-13
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve high-precision pressure closed-loop tracking in cylindrical aircraft, lack active safety protection and real-time uniformity monitoring, resulting in inaccurate loading processes and potential safety hazards, as well as a lack of systematic data recording.

Method used

It employs bidirectional hydraulic cylinders and composite force transmission components, combined with a proportional-integral-derivative control model, to achieve closed-loop pressure control. Furthermore, through an array-type hydraulic cylinder layout and support frame design, it ensures uniformity and safety of the loading force while recording historical loading data.

Benefits of technology

It achieves high-precision and stable load pressure tracking, avoids overload damage, provides reliable data recording, meets the stringent requirements of the aerospace field, and is easy to operate and low in cost.

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Abstract

This invention relates to the field of cylindrical aircraft manufacturing and internal product assembly technology, specifically to a product adapter loading device and its loading control method for cylindrical aircraft. A force transmission component one is connected to the top of a bidirectional hydraulic cylinder, and a force transmission component two is connected to the bottom of the bidirectional hydraulic cylinder. The force transmission component two is mounted on a support frame. Both force transmission components one and two are capable of vertical movement. The outer arc surfaces of force transmission components one and two are used to abut against the product adapter elements on the inner wall of the cylindrical aircraft. Real-time loading pressure transmitted to the inner wall of the cylindrical aircraft via the force transmission components is collected. Based on the target pressure curve and the real-time loading pressure, the pressure deviation at the current time point is calculated. Based on the pressure deviation, a drive control command is generated, instructing the bidirectional hydraulic cylinder to execute the drive control command to correct the real-time loading pressure. Loading ends when the cumulative loading time reaches the total loading time. This invention achieves accurate, stable, and dynamic tracking of the loading pressure.
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