Composite buffer damper
A composite buffer and damper technology, which is applied in the field of aircraft machinery, can solve the problems of poor load adaptability of the buffer damper and reduced damping performance of the buffer damper, and achieve the goal of increasing the applicable load range, reducing manufacturing difficulty, and enhancing load adaptability Effect
Active Publication Date: 2021-03-16
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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Problems solved by technology
[0004] The invention provides a composite buffer damper, which can solve the technical problems of poor load adaptability of a single type of buffer damper in the prior art, and reduced damping performance of the buffer damper in irregular layout spaces such as non-equal sections.
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[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...
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The invention provides a composite buffering damper which comprises a shell, a piston rod assembly and a rotating level floating piston ring. The shell is provided with a first containing cavity and asecond containing cavity. The section area of the first containing cavity is smaller than that of the second containing cavity. The first containing cavity is provided with buffering liquid, and thesecond containing cavity is provided with first buffering gas. The piston rod assembly can be movably arranged in the shell. The piston rod assembly is provided with a first through hole, and the rotating level floating piston ring is selectively movably arranged in the second containing cavity. When the pressure of the composite buffering damper is in a first threshold value range, the piston ring assembly can move in the first containing cavity so as to resist external resistance, and when the pressure of the composite buffering damper is in a second threshold value range, the rotating levelfloating piston ring can be movably arranged in the second containing cavity. By the application of the technical scheme, the technical problems that in the prior art, the load adaptability of a single-type damper is poor in the prior art, and the damping capacity of the buffering damper is reduced in irregular arrangement space such as a non-equal section are solved.
Description
technical field [0001] The invention relates to the technical field of aircraft machinery, in particular to a composite buffer damper. Background technique [0002] At present, there are two main types of buffer dampers for aircraft: solid spring buffer dampers and fluid spring buffer dampers, wherein the core components of solid spring buffer dampers are springs or rubber, and the core components of fluid spring buffer dampers are generally gas, liquid or Gas-liquid mixing. The solid spring buffer damper has a simple structure and is easy to maintain. It is mainly used for small aircraft and small-scale buffer damping, such as the buffer damping of the landing gear of a small UAV. The liquid spring buffer damper has the best efficiency and power absorption capacity. Most existing aircraft, especially large and large-scale buffer dampers, use gas-hydraulic buffer dampers, such as aircraft recovery buffer devices. [0003] With the development of the overall technology of t...
Claims
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IPC IPC(8): F16F9/06F16F9/32
CPCF16F9/06F16F9/3214F16F9/368F16F2222/12F16F2222/126
Inventor 魏毅寅刘乐华刘丹邓彦晨范景峰金亮孟繁超
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH