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Squeeze film damper

A technology of extruding oil film damping and oil film, which is applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems that the rotor system affects the reliability of the whole machine, the high speed of micro rotating power machinery, etc., and achieves enhanced engineering Applicability, simple structure, and the effect of reducing fuel consumption loss

Inactive Publication Date: 2012-10-03
成都中科航空发动机有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the speed of the micro rotating power machinery is very high, and the resulting vibration problem of the rotor system at high speed is an important factor affecting the reliability of the whole machine

Method used

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Embodiment Construction

[0035]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0036] The invention provides a squeeze oil film damper, the squeeze oil film damper is installed on the 2-0-0 supporting rotor structure, such as figure 1 shown. Such as figure 2 , 3 As shown, the squeeze oil film damper 1 of the present invention has a T-shaped cross-section annular metal ring structure, and is installed between the left end bearing 601 and the housing 8 when in use, and the outer ring of the squeeze oil film damper 1 and the housing 8 are interference Fitting, the inner ring of the squeeze oil film damper 1 and the bearing 601 are interference fit; the structural details of the squeeze oil film damper 1 include the oil inlet groove 2, the oil inlet hole 3, the oil film pattern 4, and the oil storage hole 5.

[0037] The oil inlet ...

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Abstract

The invention discloses a squeeze film damper, which comprises an oil inlet groove, air feed holes, oil film lines and oil storage holes. The oil inlet groove is machined on an outer circle of the squeeze film damper. The oil feed holes are machined in the oil inlet groove and communicated with the oil film lines, and supply oil to the oil film lines. The oil film lines are machined on the supporting circumference of the squeeze film damper, are slit machined on the supporting circumference of the squeeze film damper, and comprise outer lines I, inner lines III and middle line groups between the outer lines I and the inner lines III, wherein each middle line group comprises a plurality of middle lines II, which are nested and not communicated; and every two adjacent middle line groups are communicated through an inner line III. The oil storage holes are axial through holes, and are distributed in the oil film lines. The squeeze film damper is simple in structure, convenient to machine, low in cost, easy to mount and applicable to the vibration reduction of a 2-0-0 type rotor support structure, and has broad application prospect for miniature rotary type power machinery.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction of micro rotary power machinery, and relates to a squeeze oil film damper structure, in particular to a squeeze oil film damper used in a micro gas turbine or a micro turbojet engine. Background technique [0002] Micro-turbojet engines and micro-gas turbines are rotary power machines that have been developed by the state in the past ten years. They have a wide range of applications and broad market prospects in the fields of aviation and distributed energy power devices. Its main features are small size, high power density, low cost, and low energy consumption, which are suitable for the sustainable development of the future society and the development requirements of green energy. However, the rotating speed of the micro rotating power machine is very high, and the resulting vibration of the rotor system at high speed is an important factor affecting the reliability of the whole mach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/10
Inventor 陈巍郭宝亭
Owner 成都中科航空发动机有限公司
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