Liquid elastic vibration isolator with embedded inner cylinder

An embedded, vibration isolator technology, applied in the direction of shock absorber, spring/shock absorber, shock absorber-spring combination, etc., can solve the problems of high vulcanization process requirements and complex structure of passive liquid-elastic vibration isolator , to achieve the effect of ensuring safety and reducing vibration

Inactive Publication Date: 2021-01-05
CHINA HELICOPTER RES & DEV INST
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Since the passive liquid-elastic vibration isolator is connected in series to the main transmission channel, it has the ability to isolate dynamic loads; at the same time, as a main load-bearing part, it must ensure that the static load-bearing capacity of the vibration isolator can still be maintained when the vibration isolator loses its vibration isolation effect. , but the structure of the passive liquid-elastic vibration isolator is relatively complicated, and the vulcanization process requires high

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  • Liquid elastic vibration isolator with embedded inner cylinder
  • Liquid elastic vibration isolator with embedded inner cylinder
  • Liquid elastic vibration isolator with embedded inner cylinder

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] The invention is a passive liquid-elastic vibration isolation device connected in series with the main transmission channel ( figure 1 ), mainly composed of metal shell, volume compensation cavity, elastic rubber, liquid, liquid channel, etc. ( figure 2 ).

[0024] Specifically: 1. Upper interface; 2. Volume compensation chamber; 3. Outer cover; 4. Outer cylinder cover; 5. Upper liquid chamber; 6. Rubber; 7. Outer cylinder; 8. Inner cy...

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Abstract

The invention belongs to the technical field of helicopter vibration control, and discloses a liquid elastic vibration isolator with an embedded inner cylinder. The liquid elastic vibration isolator comprises an outer cover 3, an upper outer cylinder cover 4, rubber 6, an outer cylinder 7, the inner cylinder 8, a connecting bolt 9 and a lower outer cylinder cover 12, wherein the inner cylinder 8 is connected with the outer cover 3 through the connecting bolt 9; and the connecting bolt 9 penetrates through the outer cover 3 and the inner cylinder 8 when the outer cover 3 and the inner cylinder8 are connected, an up-down movement gap with a preset distance is formed between the outer cylinder 7 and the connecting bolt 9, and the inner cylinder 8 and the outer cylinder 7 are vulcanized together through the rubber 6. The liquid elastic vibration isolator with the embedded inner cylinder can isolate dynamic loads transmitted by a helicopter rotor wing, and a force bearing structure does not fail after the rubber fails.

Description

technical field [0001] The invention belongs to the technical field of helicopter vibration control, in particular to a liquid-elastic vibration isolator embedded in an inner cylinder. Background technique [0002] There are vibration problems in mechanical equipment. Excessive vibration will reduce the service life of structures and electronic equipment, reduce the control and use accuracy of equipment, and affect the control and comfort of passengers. One of the key factors to improve the design level. The vibration load of the rotor is transmitted to the fuselage through the main reduction system. Therefore, for helicopter vibration control, it is a very effective method to reduce the transmission of vibration load to the fuselage through the main reduction and isolation measures. [0003] Since the passive liquid-elastic vibration isolator is connected in series to the main transmission channel, it has the ability to isolate dynamic loads; at the same time, as a main lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/08F16F13/10
CPCF16F13/085F16F13/107
Inventor 钱峰程起有冯志壮代志雄孙凤楠刘晨朱艳
Owner CHINA HELICOPTER RES & DEV INST
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