US 8,037,768 B2 · Vibrometer mounting mechanism

Abstract

Adjustment of the distance between the tip of a pickup section and the outer surface of a shaft of a rotor can be carried out easily and with high precision. In a vibrometer mounting mechanism securing a measuring section of a vibrometer for measuring vibration of a shaft of a rotary machine to a casing of the rotary machine, the vibrometer mounting mechanism includes a case secured to the casing with fixing means; an inner cylinder that accommodate the measuring section at one end, that is disposed in the inside of the case, and that slides relative to the case; and an adjustment bolt disposed at one end of the case and capable of moving forward and backward with respect to the case and the inner cylinder, wherein the inner cylinder is made to move in a direction away from the shaft by the adjustment bolt being inserted into the case and the inner cylinder, and wherein the inner cylinder is made to move in a direction toward the shaft by the adjustment bolt being retracted from the case and the inner cylinder.

Claims14

Dependent claims

A vibrometer mounting mechanism securing a measuring section of a vibrometer for measuring vibration of a shaft of a rotary machine to a casing of the rotary machine, the vibrometer mounting mechanism comprising:

a case secured to the casing with securing means;
an inner cylinder that accommodates the measuring section at one end, that is disposed inside the case, and that slides relative to the case;
and
an adjustment bolt disposed at one end of the case and capable of moving forward and backward with respect to the case and the inner cylinder,
wherein the inner cylinder is made to move in a direction away from or toward the shaft by the adjustment bolt being inserted into the case and the inner cylinder,
wherein the inner cylinder is made to move in a direction toward or away from the shaft by the adjustment bolt being retracted from the case and the inner cylinder;
wherein a pyramid section that has a polygonal shape in front view and that is tapered toward the tip is formed at one end of the adjustment bolt, and
wherein a bolt hole that receives the pyramid section in a freely rotatable manner and that has an inner circumferential surface is in contact with a side surface of the pyramid section at the other end of the inner cylinder.

5 more elements

Dependencies are inferred from the claim text.

Vibrometer mounting mechanism

Life of this patent

Vibrometer mounting mechanism

Life of this patent

Abstract

Claims14