Intelligent elastic bearing and state monitoring system thereof
An intelligent elastic and state monitoring technology, applied in the direction of aircraft component testing, etc., can solve problems such as manual inspection, deviation of inspection results, difficulty in monitoring loads or the state of elastic bearings themselves
Inactive Publication Date: 2020-03-24
CHINA HELICOPTER RES & DEV INST
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Problems solved by technology
However, the current elastic bearing is not easy to monitor its load or the state of the elastic bearing itself. Whether the elastic bearing fails can only be checked after the rotor system stops working, and manual inspection is required. The subjectivity of different people will lead to deviations in inspection results
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] An embodiment of the present invention provides an intelligent elastic bearing for a helicopter, such as figure 1 As shown, the intelligent elastic bearing is composed of an elastomer spacer, a metal spacer and two joint structures. Joints transfer loads and provide rotational degrees of freedom in one or more directions.
[0025] Create a cavity on the smart elastic bearing joint, elastomer spacer, metal spacer, fill the cavity with li...
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The invention belongs to the technical field of helicopter elastic bearings, and discloses an intelligent elastic bearing and a state monitoring system thereof. The intelligent elastic bearing comprises an elastomer spacer, a metal spacer and two connectors, one connector is connected with a paddle, and the other connector is connected with a propeller hub. A cavity is formed in the elastomer spacer, the metal spacer and the two connectors, and the cavity is filled with liquid or gas; a probe of the pressure sensor is connected to the interior of the cavity, makes contact with gas or liquid inthe cavity and is used for monitoring loads and the like on the elastic bearing, and therefore whether the elastic bearing is in a normal state or not can be judged according to monitoring data, or the probe serves as a feedback signal to control the running state of the rotor system.
Description
technical field [0001] The invention belongs to the technical field of helicopter elastic bearings, and in particular relates to an intelligent elastic bearing and a state monitoring system thereof. Background technique [0002] The elastic bearing commonly used in the existing helicopter rotor system is a stacked structure of elastomer spacers and metal spacers, which mainly bears the load (such as centrifugal force, shear force, etc.) from the helicopter blades and provides freedom of rotation in one or more directions. Spend. However, the current elastic bearing is not easy to monitor its load or the state of the elastic bearing itself. Whether the elastic bearing fails can only be checked after the rotor system stops working, and manual inspection is required. The subjectivity of different people will lead to deviations in inspection results. Contents of the invention [0003] In view of the above problems in the background technology, the object of the present invent...
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IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 王鉴覃海鹰陈少峰雷少保
Owner CHINA HELICOPTER RES & DEV INST