An extrusion oil film thickness adjustment device
A technology for squeezing oil film and thickness adjustment, applied in the direction of rotational vibration suppression, etc., can solve the problems such as the inability to continuously adjust the thickness of the squeeze oil film, the change of assembly relationship, etc., and achieve the effect of convenient market promotion, strong versatility, and cost reduction.
Active Publication Date: 2019-11-08
SOUTHEAST UNIV
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Problems solved by technology
[0004] Purpose of the invention: In view of the problems in the prior art that the thickness of the extruded oil film cannot be continuously adjusted, and the original assembly relationship is changed due to frequent disassembly and assembly of parts, the present invention provides a device for adjusting the thickness of the extruded oil film, which can be adjusted without disassembling the main parts. The continuous adjustment of different thicknesses of the extruded oil film is realized in the case of components, and the adjustment is convenient
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Embodiment Construction
[0017] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 with figure 2 As shown, an extrusion oil film thickness adjustment device of the present invention includes an oil film bush 6 and an adjustment ring 7, and the device is installed on the support seat 1; the elastic support 2 is connected with the support seat 1 through screws; the rolling bearing 4 is located on the elastic support 2 Between the bearing 4 and the rotor 3, the outer ring of the rolling bearing 4 is in contact with the inner wall of the elastic support 2, and the inner ring is in contact with the rotor 3; the rolling bearing 4 is fixed with the rotor 3 through the lock nut 5; the oil film bush 6 is located between the support seat 1 and the elastic support 2 , the outer wall is separated from the inner wall of the support seat 1 to form an extruded oil film 8, and its inner wall is in contact with the ...
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The invention discloses a squeeze oil film thickness adjusting device. The device comprises an oil film bush and an adjusting ring; the oil film bush is located between a supporting seat and an elastic support, the outer wall of the oil film bush is separated from the inner wall of the supporting seat to form a squeeze oil film, and the inner wall of the oil film bush is in contact with the outerwall of the elastic support; and the adjusting ring is located between the supporting seat and the oil film bush, and is connected with the supporting seat and the oil film bush through screws. According to the device, the oil film bush has different wall thicknesses, the thickness of the squeeze oil film can be continuously adjusted without disassembling main parts after the oil film bush is matched with the adjusting ring, so that adjustment is convenient. In addition, according to the device, adjustment on different thicknesses of the squeeze oil film can be achieved through using one oil film bush, the multiple oil film bushes do not need to be machined, so that the cost is reduced.
Description
technical field [0001] The invention relates to the field of rotating machinery rotors, in particular to a device for adjusting the thickness of an extrusion oil film. Background technique [0002] Squeeze oil film damper is a commonly used vibration reduction structure for rotating machinery such as aero-engines, which can effectively suppress excessive vibration of the rotor and avoid friction between rotor and stator. The occurrence of a mechanical failure is significant. The squeeze film thickness has a great influence on the dynamic characteristics and damping performance of the squeeze film damper. [0003] In the research on the influencing factors of the characteristics of the existing squeeze oil film damper, it is generally necessary to replace multiple parts, which leads to high processing costs on the one hand, and frequent disassembly and assembly of parts on the other hand will cause the original assembly relationship to be changed, which cannot Very good con...
Claims
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IPC IPC(8): F16F15/16
Inventor 费庆国何俊增张大海刘璟泽柳友志徐伟文严文强
Owner SOUTHEAST UNIV