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Vibration reducing and connecting structure

A technology of vibration connection and structure, which is applied in the field of vibration-damping connection structures, and can solve problems such as inability to obtain vibration and high damping characteristics

Inactive Publication Date: 2007-04-11
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, since it is stipulated that the springs contained in the dynamic shock absorber preferably have high damping properties, the condition c is not satisfied
Moreover, in the record of condition b, there is no description of the positional flexibility on the connection position of the dynamic vibration absorber
Therefore, this implies that the effect of significantly reducing the vibration of a specific frequency cannot be obtained

Method used

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Effect test

no. 1 approach

[0041] The vibration-damping connection structure 1 of the first embodiment (corresponding to claim 1 ) of the present invention will be described in detail with reference to the schematic diagram of FIG. 2 . The following description is directed to one side of the bilaterally symmetrical structure, so the description and illustration of the other side is omitted below.

[0042]The vibration damping structure 1 according to the first embodiment of the present invention includes the elastic body 2 connecting the sub-structural body 11 to the main structural body 10 at the connection portion 2a having high positional flexibility. For the elastic body 2, for example, coil springs, coil springs, conical springs, coil springs, foam, rubber, or resin can be used. The sub-structural body 11 has a recess that is pressed down so that the upper side of the recess is opened. The lower side of the downwardly protruding portion of the recess defines the connecting portion 2a. The dynamic...

no. 2 approach

[0045] The vibration-damping connection structure 1 of the second embodiment (corresponding to claim 2 ) of the present invention will be described in detail with reference to the schematic diagram of FIG. 3 . Specifically, the vibration-damping connection structure 1 according to the second embodiment of the present invention includes the elastic body 2 that connects the sub-structure body 11 to the main structure body 10 at the connection portion 2a having high positional flexibility. The dynamic vibration absorber 3 is connected to the lower surface of the substructure 11 at a connection point 3 a substantially aligned with the connection portion 2 a. The dynamic shock absorber 3 includes a spring 31 fixed at the connection point 3 a and a counterweight 32 connected to the free end of the spring 31 .

[0046] In the vibration-damping connection structure of the first embodiment, the dynamic vibration absorber 3 is arranged above the sub-structural body 11 . On the other ha...

no. 3 approach

[0048] The vibration-damping connection structure 1 of the third embodiment (corresponding to claim 2 ) of the present invention will be described in detail with reference to the schematic diagram of FIG. 4 . Specifically, the vibration-damping connection structure 1 according to the third embodiment includes the elastic body 2 connecting the sub-structural body 11 to the main structural body 10 at the connection portion 2a having high positional flexibility. The elastic body 2 is composed of anti-vibration rubber and has a hollow area 21 at its center to form a tubular shape. The dynamic vibration absorber 3 is packaged in the hollow area 21 . The dynamic vibration absorber 3 includes a coil spring 31 having one end connected to the lower surface of the substructure 11 at a connection point 3 a , and a weight 32 connected to the free lower end of the coil spring 31 . In the third embodiment, the main structure body 10 may have a concave portion on its upper surface. Therefo...

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Abstract

A vibration reducing and connecting structure capable of providing a large vibration reduction effect against the forced vibration of a specified frequency. The structure (1) suppressing the transmission of the forced vibration from a main structure (10) to an auxiliary structure (11) comprises a plurality of elastic bodies (2) for connecting the auxiliary structure (11) to the main structure (10) through connection parts (2a), and dynamic vibration absorbers (3) having springs (31) connected to connection points (3a) roughly matching the connection parts (2a) on the auxiliary structure (11) side and having one ends connected to the connection points (3a) and weights (32) fitted to the free ends of the springs (31).

Description

technical field [0001] The present invention relates to a vibration-damping connection that reduces forced vibrations that can be transmitted at specific frequencies to sub-structural objects that are attached to primary structures such as machine bodies as supports, bases, covers, etc. Background technique [0002] Vibrations generated on a main structure such as a machine main body are transmitted to a sub-structure, which is connected to the main structure by means of connecting elements with the main structure, thereby generating noise from the sub-structure. The following are general methods used to reduce vibration. [0003] (1) Attach the damping material to the secondary structure. [0004] (2) The secondary structure is connected to the main structure with elastic bodies such as rubber or metal springs in between, so that the elastic bodies prevent the vibration of the main structure. [0005] (3) Attach the dynamic vibration absorber including the counterweight a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/02F16F7/104
CPCF16F7/104F16F7/00F16F15/00F16F15/02F16F15/06
Inventor 山口善三杉本明男
Owner KOBE STEEL LTD