A rubber vibration isolator for turboprop engine with high angular stiffness

A technology of engine and angular stiffness, applied in the direction of non-rotational vibration suppression, etc., can solve the problems of difficult position adjustment, unfavorable pitching vibration, poor stiffness, etc., achieve structural topology optimization, enhance replaceability and maintainability, and high load-carrying capacity Effect
CN104696427BActive Publication Date: 2017-12-12CHINA AIRPLANT STRENGTH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AIRPLANT STRENGTH RES INST
Publication Date
2017-12-12

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Abstract

The invention provides a large angular rigidity turboprop engine rubber vibration isolator with failure protection measures. According to the technical scheme, the large-angle rigidity turboprop engine rubber vibration isolator comprises a base 1, a front cover plate 4, a rear cover plate 5, four mounting plates 2 and rubber blocks 3, wherein the four mounting pates 2 are connected with the mounting base through clamping grooves; the rubber blocks 3 are symmetrically arranged between the front cover plate 4 and the mounting plate 2 and between the rear cover plate 5 and the mounting plate 2 in an up and down manner; a sleeve 6 sleeves a connecting screw rod 7; the connecting screw rod 7 penetrates through the front cover plate 4 and the rear cover plate 5; a sealing screw cap 8 is screwed on one side, on the rear cover plate 5, of the connecting screw rod 7; a threaded protecting sleeve 9 is screwed at the end part, on the rear cover plate 5, of the screw rod 7.
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Description

technical field

[0001] The invention belongs to a vibration isolation and buffer device for installation and use of an aero-engine, and relates to the vibration isolation installation of power devices in the fields of aviation, spaceflight and ships. Background technique

[0002] The vibration generated by the aviation turboprop engine will have a great impact on the vibration environment of the aircraft and the ride comfort. The transmission of its vibration to the aircraft can be effectively suppressed by the engine vibration isolation installation system. In a vibration isolation system composed of multiple rubber vibration isolation devices, each vibration isolation device uses the superelasticity of rubber elements and the performance of large deformation to provide stiffness characteristics for the vibration isolation device; The non-recoverable deformation dissipates vibration energy to provide damping characteristics for the vibration isolator; while the metal elemen...

Claims

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