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Title:
HYDRAULIC POWER ANTI-RESONANCE VIBRATION ISOLATOR HAVING ADJUSTABLE ANTI-RESONANCE FREQUENCY
Document Type and Number:
WIPO Patent Application WO/2019/192184
Kind Code:
A1
Abstract:
A hydraulic power anti-resonance vibration isolator having an adjustable anti-resonance frequency, said vibration isolator comprising an outer cylinder (4), an inner cylinder (2), an elastic thin film assembly (8) and a frequency modulation counterweight (9), one end of the outer cylinder (4) being sealed and connected to a vibration source, the inner cylinder (2) being arranged within the outer cylinder (4), rubber (3) being arranged between the inner cylinder (2) and the outer cylinder (4), the rubber (3) being adhered to an inner cylinder outer wall and an outer cylinder inner wall, the end of the inner cylinder (2) away from the vibration source being sealed and connected to a fixing mechanism, the elastic thin film assembly (8) forming an end surface which seals the inner cylinder (2), the end surface and the sealed end of the outer cylinder (4) together forming an accommodating cavity used for accommodating a fluid, the frequency modulation counterweight (9) being connected to the surface of the elastic thin film assembly (8) away from the accommodating cavity. The vibration isolator can adjust the anti-resonance frequency by altering the mass of the frequency modulation counterweight, so as to adapt to rotor vibration load frequency fluctuations, thereby overcoming the defect that traditional power vibration absorption frequencies are highly selective.

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Inventors:
WU, Wenmin (No. 6-8th Air Road, Jingdezhen, Jiangxi 1, 333001, CN)
GAO, Guixiang (No. 6-8th Air Road, Jingdezhen, Jiangxi 1, 333001, CN)
FAN, Deli (No. 6-8th Air Road, Jingdezhen, Jiangxi 1, 333001, CN)
ZHAO, Yifan (No. 6-8th Air Road, Jingdezhen, Jiangxi 1, 333001, CN)
WAN, Long (No. 6-8th Air Road, Jingdezhen, Jiangxi 1, 333001, CN)
Application Number:
CN2018/115809
Publication Date:
October 10, 2019
Filing Date:
November 16, 2018
Export Citation:
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Assignee:
CHINA HELICOPTER RESEARCH AND DEVELOPMENT INSTITUTE (No. 6-8th Air Road, Jingdezhen, Jiangxi 1, 333001, CN)
International Classes:
F16F7/112; B64C27/00
Domestic Patent References:
WO2016053464A12016-04-07
Foreign References:
US20020154940A12002-10-24
CN101526122A2009-09-09
CN103476672A2013-12-25
CN102282407A2011-12-14
EP1724191A12006-11-22
Attorney, Agent or Firm:
HANG XIN GAO KE ZHI SHI CHAN QUAN DAI LI SHI WU SUO (GAO Yuan, Room 431th No. 17th Zhongjianzi Road, Dongcheng District, Beijing 7, 100007, CN)
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