Light bearing base structure

A bearing seat, lightweight technology, applied in the lubrication of turbine/propulsion device, cooling of turbine/propulsion device, engine components, etc., can solve the problems of complex part mold design, excessive machine weight, high processing cost, and achieve optimization. The effect of internal space utilization, weight reduction, and convenient processing

Active Publication Date: 2017-10-20
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, the (non-) load-bearing casing using this type of casing assembly will inevitably face the problems of excessive weight of the machine, complicated processing technology of parts and high processing cost.
At the same time, the process route, technical level and low yield of finished products of precision casting will cause a lot of loss of rough, and will also cause a lot of loss and waste of rough raw materials, and the mold design of precision casting parts is complicated, weight control is difficult, and It is more difficult to check the internal quality problems of various loose or inclusions

Method used

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Embodiment Construction

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. The following embodiments are for explaining the present invention and the present invention is not limited to the following embodiments.

[0032] Such as Figure 1~3 As shown, the lightweight bearing housing structure 100 of the present invention is arranged in the casing of a gas turbine / aero engine to realize the ventilation, cooling and oil supply of the bearing cavity. The bearing housing 100 includes an integrally cast coaxially arranged cylindrical The bearing seat outer ring 101 and the bearing seat inner ring 102, and the bearing 200 is arranged on the inner wall of the bearing seat inner ring 102.

[0033] The front end of the outer ring of the bearing seat 101 protrudes from the inner ring 102 of the bearing seat, and is flanged outward to form a tapered structure 1011...

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Abstract

The invention relates to a light bearing base structure capable of being applied to such fields as ground gas turbines and aircraft engines; and the structure can realize lubricating oil supply of bearing cavities, lubricating oil returning, cooling gas supply and ventilation between the bearing cavities. The light bearing base structure is provided with a discrete convex rib structure for realizing such functions as lubricating oil supply, lubricating oil returning and cooling gas supply, is provided with a kidney-shaped or shape-optimized cavity structure for realizing such functions as ventilation between the bearing cavities, and is provided with a flange mounting edge and an O-shaped ring mounting groove for realizing a function of sealing lubricating oil in the bearing cavities. The light bearing base structure can relieve the weight of an engine to the greatest extent, optimizes internal space utilization of the engine, and shortens an air way of a secondary air system of the engine; and lubricating oil supply and cold air supply in the bearing base both can realize effective control of the temperature of the lubricating oil in the bearing cavities.

Description

Technical field [0001] The present invention relates to a bearing seat structure used in the fields of gas turbines, aero-engines, etc., in particular to a lightweight bearing seat structure that can realize bearing cavity ventilation, cooling, and lubricating oil supply. The structure can meet the requirements of such mechanical structures ( The design needs of non-) force transmission receiver and (non) force-bearing receiver. Background technique [0002] The load-bearing receiver or non-bearing receiver at the position of the bearing fulcrum is a structural design problem of important practical significance in the field of gas turbines and aeroengines. [0003] In the structural design of gas turbines and aero engines in the past, such load-bearing casing components are often designed by using complex precision casting blanks. However, the (non-)load-bearing receiver using this type of receiver assembly will inevitably face the problems of excessive weight of the machine, comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/06F02C7/12
CPCF02C7/06F02C7/12
Inventor 杜强刘军徐庆宗胡嘉麟王沛柳光高金海刘红蕊杨晓洁
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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