JP2008151204A - Vibration isolating damper attachment structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration isolating damper attachment structure, positively transmitting micro-vibration when an electric train or an automobile passes on an elevated bridge to the vibration isolating damper. <P>SOLUTION: In this vibration isolating damper attachment structure 1 attaching and fixing the end part of a vibration isolating damper 2 for absorbing vibration to a vibration isolating object through an attachment means, attachment surfaces 3a and 3b which are integrally arranged on the front and rear sides of the attachment means 3 are so arranged that the attachment surface 3a on a vibration isolating object 4 side and the attachment surface 3b on a vibration isolating damper 2 side opposite thereto are arranged orthogonal to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vibration damping damper mounting structure in a mounting means used for mounting a vibration absorbing damper used in, for example, a railway viaduct.

Conventionally, vibration absorbing dampers used in railway viaducts are required to efficiently input dampers without loss of fine vibrations during transmission. Therefore, generally, as shown in FIG. 7, a shaft type (pin type) joint is used or a bolt is fixed (see Patent Document 1).
JP 2001-295506 A

  However, in the conventional shaft type (pin type) joint, since the clearance of the fitting portion exists, minute vibrations cannot be transmitted to the damper. In addition, if bolts are fixed, they will be fixed with the position error occurring at the top and bottom of the fixture during construction, and a bending moment will be applied to the damper, causing sliding resistance (seri), resulting in a damper damping force. Adversely affected. The vibration damping damper mounting structure according to the present invention has been proposed in order to solve such problems.

  The gist for achieving the object by solving the above-described problem of the vibration damping damper mounting structure according to the present invention is to attach the end of the vibration damping damper for vibration absorption to the vibration isolation object through the mounting means. In the structure to be fixed, the mounting surface on the front and back sides of the mounting means is such that the mounting surface on the vibration isolating object side and the mounting surface on the vibration isolating damper side opposite thereto are orthogonal to each other.

Of the mounting surfaces integrated with the front and back of the mounting means, one mounting surface has a center positioning hole that holds the center position when adjusting the mounting angle of the anti-vibration damper and a bolt that absorbs errors when adjusting the mounting angle. A bolt hole to be fitted, and the other mounting surface is provided with a bolt hole for loosely fitting the bolt so as to absorb the error in adjusting the center positioning hole and the mounting angle;
A thin-walled portion that allows elastic deformation is provided on one mounting surface of the mounting means;
Is included.

According to the vibration damping damper mounting structure of the present invention, it is possible to adjust the relative error of the mounting location, and the positional deviation is absorbed. As a result, minute vibrations when passing through a train such as a railway viaduct are reliably transmitted to the vibration damping damper and attenuated. In addition, it is possible to facilitate the installation of the vibration damper installation.
Furthermore, since there is a thin portion that allows elastic deformation, the force exerted on the damper by the angular displacement of the mounting portion can be reduced.

  As shown in FIG. 1, an anti-vibration damper mounting structure 1 according to the present invention includes a concrete beam as an anti-vibration object, with an end 2a of an anti-vibration damper 2 for absorbing vibration being connected to a joint 3 as an attachment means. -In the structure fixed to the pillar 4 or the like, the attachment surfaces 3a, 3b of the joint 3 of the attachment means are integrated with the attachment surface 3a on the vibration isolation object 4 side and the vibration isolation damper side on the opposite side. The mounting surface 3b is orthogonal.

  As shown in FIG. 2, the joint 3 absorbs a positional deviation between the b direction perpendicular to the axial center and the c direction perpendicular to the axial center a direction of the vibration damping damper 2. The mounting surface 3a and the mounting surface 3b are orthogonal to each other.

  Specifically, as shown in FIG. 3, the adjustment of the positional deviation is performed by attaching the vibration damping damper 2 to one of the attachment surfaces 3a and 3b of the joint 3 which is the attachment means. A center positioning hole 3c that holds the center position during angle adjustment is provided. A pin 5 to be fitted without play is inserted into the hole 3c. Further, there are a plurality of arc-shaped bolt holes 3d centered on the pin 5 or a round hole 3d having a diameter larger than the diameter of the bolt 6 in which the bolt 6 is loosely fitted so as to absorb an error in adjusting the mounting angle. One is provided.

  As shown in FIGS. 4A and 4B, the center mounting hole 3c and a bolt 7 which is a high-tension bolt are loosely fitted on the other mounting surface 3b so as to absorb errors in adjusting the mounting angle. A plurality of bolt holes 3e are provided.

Direction of the a-axis and c-axis between the position of the hole 3d of the joint 3 that rotates about the pin 5 and the position of the hole on the mounting surface 8a of the mounting bracket 8 on the beam 4 side by the hole 3d. Absorbs misalignment in
Further, the hole 3e absorbs a displacement in the direction of the a-axis and the b-axis with respect to the mounting hole 9a of the connection fitting 9 that is integrally connected to the vibration-proof damper 2. Therefore, the hole 3 e is a hole having a diameter larger than the diameter of the rod body of the bolt 7.

  In this way, when the vibration damping damper 2 is attached to the vibration isolation object 4, the joint is made without any misalignment, so that the minute vibration transmitted to the vibration isolation object is also transmitted to the vibration isolation damper 2.

  In another embodiment of the present invention, as shown in FIGS. 5 to 6 (A) and 6 (B), a thin-walled portion 3f that allows elastic deformation is provided on one mounting surface 3b of the joint 3 that is a mounting means. This is an embodiment of the mounting structure 1a. By having this thin part 3f, the influence which the bending moment by the displacement of the vibration isolating object 4 has on the vibration isolating damper 2 can be reduced. The length and thickness of the thin portion 3f in the a-axis direction are design matters. In another embodiment, the thin metal portion 9b is also provided in the attachment portion of the connecting metal fitting 9. This is because the influence of the bending moment on the vibration damping damper 2 can be further reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a general | schematic whole conceptual diagram which shows the attachment structure 1 of the vibration isolator which concerns on this invention. It is explanatory drawing which shows the axial center a of the vibration isolator 2 of the same invention, and the axis | shafts b and c orthogonal to it. It is an enlarged detail drawing of the attachment structure 1 of the vibration isolator. They are the front view expansion perspective view (A) and the back view expansion perspective view (B) in the anti-vibration damper mounting structure 1. FIG. 6 is an enlarged detail view of an anti-vibration damper mounting structure 1a according to another embodiment of the present invention. They are the front view expansion perspective view (A) and the back view expansion perspective view (B) in the vibration damping damper mounting structure 1a. It is the front view expansion perspective view (A) and back view expansion perspective view (B) in the attachment structure of the vibration-proof damper which concerns on a prior art example.

Explanation of symbols

1,1a Anti-vibration damper mounting structure,
2 Anti-vibration damper, 2a end,
3 Joint, 3a, 3b Mounting surface,
3c center positioning hole, 3d bolt hole,
3e hole, 3f thin part,
4, 4a, 4b Anti-vibration objects such as beams and columns,
5 pins,
6 volts,
7 volts,
8 Mounting bracket, 8a Mounting surface,
9 Connecting bracket, 9a Mounting hole,
9b Thin part.

Claims (3)

In the structure that attaches and fixes the end of the vibration damping damper for vibration absorption to the vibration isolation object via the attachment means,
The mounting surface on the front and back sides of the mounting means is such that the mounting surface on the vibration isolating object side and the mounting surface on the vibration isolating damper side on the opposite side are orthogonal to each other,
Anti-vibration damper mounting structure characterized by Of the mounting surfaces that are integrated with the front and back of the mounting means, one of the mounting surfaces is loosely fitted with a center positioning hole that holds the center position when adjusting the mounting angle of the anti-vibration damper and so as to absorb errors when adjusting the mounting angle. A bolt hole is provided, and the other mounting surface is provided with a bolt hole for loosely fitting the bolt so as to absorb the error at the time of adjusting the center positioning hole and the mounting angle,
The vibration-proof damper mounting structure according to claim 1. A thin-walled portion that allows elastic deformation is provided on the mounting surface on one side of the mounting means;
The vibration-proof damper mounting structure according to claim 1 or 2, characterized in that:

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