JP2016075610A - Auscultation rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auscultation rod which can improve a performance of capturing abnormal sounds of an inspection object without surely making an abutting tip part slide to a predetermined part of the inspection object.SOLUTION: An auscultation rod is used in such a manner that an abutting tip end part which is one end part of an auscultation rod body is slid to a predetermined part of an inspection object, and the other end is put to an ear of a patrolman so that the presence or absence of abnormal sounds of the inspect object can be inspected. The auscultation rod can cover the abutting tip end and makes the abutting tip end abut against the inspection object with a large area as compared with the abutting tip end, and includes a friction member capable of being abutted to the inspection object by an adhesive force, and the abutting tip end is made retractable to the friction member.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an auscultation bar for auscultating the presence or absence of abnormal noise in these inspection objects during a cyclic inspection of equipment and machines in a power plant or factory facility.

  The auscultation stick is used when periodically inspecting the inspection object in order to prevent troubles of the inspection object such as equipment and machines. The auscultation stick is used to check the presence or absence of abnormal noise by bringing the abutting tip, which is one end, into contact with a predetermined part of the inspection object and placing the other end against the ear of the patrol person. If abnormal noise is captured, the cause will be repaired.

  As this type of auscultation stick, the technique of the following Patent Document 1 has been proposed. In the auscultation bar of Patent Document 1, the contact tip of the auscultation bar is brought into contact with a predetermined portion of the inspection object by chamfering, magnetizing, or roughening the contact tip. At this time, the abutting tip is made difficult to slip with respect to the inspection object.

JP 2006-38735 A

  Like the auscultation bar of the above-mentioned Patent Document 1, the contact tip of the auscultation bar itself is processed, but if it is only that, the auscultation bar often comes off from a predetermined part of the inspection object. If this happens, it will not be possible to capture the abnormal sound of the inspection object.

  In view of the above, an object of the present invention is to provide an auscultation stick that can improve the noise capturing property of an inspection object by ensuring that the contact tip does not slip on a predetermined part of the inspection object.

  According to the present invention, the contact tip of one end of the auscultation stick main body is brought into contact with a predetermined portion of the inspection object, and the other end is brought into contact with the patrolian's ear so that the abnormal noise of the inspection object is obtained. This auscultation stick is used to check the presence or absence of an object, and can cover an abutting tip and abut an object to be inspected with a larger area than the abutting tip. A friction member capable of abutting is provided, and the abutting tip portion can be moved back and forth with respect to the friction member.

  In the above configuration, the friction member that covers the contact tip is brought into contact with the inspection object, the contact tip protrudes outside the friction member, and the contact tip contacts the predetermined part of the inspection object. When contacted, the friction member that comes into contact with the inspection object is less likely to slip from the predetermined part of the inspection object, and therefore the contact tip protruding from the friction member is less likely to slip from the predetermined part of the inspection object.

  In the auscultation stick of the present invention, the abutting tip can adopt a configuration in which it can be moved back and forth with respect to the friction member by the elasticity of the spring.

  In the above configuration, the friction member is brought into contact with the inspection object, the contact tip is protruded outside the friction member against the elasticity of the spring, and the contact tip is brought into contact with a predetermined part of the inspection object. Then, the friction member does not slide from the predetermined part of the inspection target object due to the frictional force, and the contact tip does not slip from the predetermined part of the inspection target object.

  In the auscultation bar of the present invention, the friction member is a sphere, and a configuration in which the contact tip of the auscultation bar main body is inserted substantially at the center of the friction member can be adopted.

  If the friction member is a sphere as in the above configuration, the abutment tip of the auscultation bar body can be easily placed at a predetermined part of the inspection object by adjusting the inclination angle of the auscultation bar body using the spherical surface of the sphere. It is made to contact.

  In the auscultation rod of the present invention, the friction member is made of silicon, and the friction member includes a cylindrical portion built in to penetrate the abutting tip portion of the auscultation rod main body and the vicinity thereof, and the cylindrical portion is compared with the outside thereof. And a hard structure can be adopted.

  According to the above configuration, even when the frictional member is deformed when the abutting tip of the auscultation bar moves out of or with respect to the frictional member, the elastic cylinder is deformed by the hard cylindrical portion compared to the outer silicon. It is performed smoothly, and the contact tip portion with respect to the friction member is smoothly withdrawn and retracted.

  According to the auscultation stick of the present invention, the friction member that covers the contact tip is brought into contact with the inspection object, the contact tip protrudes outside the friction member, and the contact tip is inspected. The friction member that comes into contact with the object to be inspected with a larger area than the contact tip is less likely to slip from the predetermined part of the object to be inspected due to the frictional force, and thus protrudes from the friction member. The distal end portion can be prevented from slipping from the predetermined part of the inspection object with certainty, and an excellent effect that the position of the abutting distal end portion of the auscultation stick can be maintained can be achieved.

FIG. 1 shows an auscultation stick according to an embodiment of the present invention, and is an enlarged cross-sectional view of a main part in a state in which a contact tip of the auscultation stick protrudes outward from a friction member. FIG. 2 is an enlarged cross-sectional view of a main part in a state where the contact tip portion of the auscultation rod is accommodated inside the friction member. FIG. 3 is a sectional view showing the same use state.

  Hereinafter, an embodiment of an auscultation stick according to the present invention will be described with reference to FIGS. 1 to 3. The auscultation stick 1 according to the present embodiment includes a long auscultation stick main body 2 and an elastically deformable friction member 3. At least the surface of the friction member 3 has adhesiveness. The auscultation stick main body 2 has an abutting tip 2a that makes one end abut against the inspection object K, and an abutment portion 2b that contacts the ear of the patrol person. The auscultation stick 1 is different from the auscultation stick main body 2 by bringing the abutting tip 2a into contact with a predetermined part of the equipment or machine in the power plant or factory facility and placing the abutment part 2b on the patroler's ear. It is used to check the presence or absence of sound, and is provided with a flange 20 that is movably accommodated in the friction member 3 on the abutting tip 2a side. The collar portion 20 is formed to have a larger diameter than the auscultation stick main body 2.

  The friction member 3 covers the contact tip 2a and the vicinity thereof, that is, the tip side vicinity of the auscultation bar main body 2, and is a member used to bring the outer surface into contact with the inspection object K. In this case, the friction member 3 is formed in a spherical shape, and includes an outer friction member main body 30 and an auxiliary cylinder 31 (corresponding to a cylinder portion) penetrating along the radial direction at the center of the friction member main body 30. I have. The friction member main body 30 is formed of silicon elastomer, and thus has a stickiness (also referred to as tackiness) on the surface thereof. The auxiliary cylinder 31 is made of a synthetic resin that is hard (at least harder than the friction member main body 30). The auxiliary cylinder 31 is formed to have a length substantially the same as the diameter of the friction member main body 30.

  The auxiliary cylinder 31 includes an auxiliary cylinder body 32, one side insertion portion 34 on one side in the longitudinal direction, the other side insertion portion 35 on the other side in the longitudinal direction, and the spring 4. The auxiliary cylinder body 32 is a separate body from the friction member body 30 and is inserted (built in) so as to be inserted through the central hole of the friction member body 30. The auxiliary cylinder body 32 and the one side insertion part 34 are integrally formed, and the other side insertion part 35 and the auxiliary cylinder body 32 are formed separately. In addition, the other side insertion part 35 inserts the contact front-end | tip part 2a of the auscultation stick main body 2 and its vicinity into the auxiliary cylinder 31, and then covers the other side open part of the auxiliary cylinder 31 so as to cover the auxiliary cylinder. It is fixed to the body 31.

  At the center of the one-side insertion portion 34, a one-side hole portion 34a into which the contact tip portion 2a of the auscultation stick main body 2 can be inserted is formed. At the center of the other side insertion part 35, the other side hole part 35a is formed through which the middle part of the auscultation stick main body 2 on the contact tip part 2a side (the vicinity of the contact tip part 2a) can be inserted. The one side insertion portion 34 and the other side insertion portion 35 are formed in an annular shape by forming the one side hole portion 34a and the other side hole portion 35a, respectively. The other side insertion part 35 is formed by combining halves. The diameters of the one side hole 34a and the other side hole 35a are set to be slightly larger than the diameter of the auscultation bar main body 2. Both the surface 34b of the one side insertion part 34 and the surface 35b of the other side insertion part 35 are formed in the curved surface along a spherical body.

  The spring 4 is a compression coil spring disposed in the auxiliary cylinder 31 with the bottom surface 34c of the one side insertion portion 34 as a spring seat on one side and the one side annular surface 20a of the flange portion 20 as a spring seat on the other side. is there. That is, the spring 4 urges the abutting tip 2 a of the auscultation bar main body 2 in a direction entering the inside of the friction member main body 30. In order to project the contact tip 2a of the auscultation bar main body 2 to the outside of the friction member main body 30, the auscultation bar main body 2 is resisted by the elasticity of the spring 4 while the friction member 3 is fixed. This is possible by pressing in the radial direction. In other words, the abutting tip 2 a can be moved back and forth with respect to the friction member 3.

  A method of using the auscultation stick 1 having the above configuration will be described. When the auscultation bar 1 is not in use, the contact tip 2 a is housed inside the friction member 3 as shown in FIG. 2 due to the elasticity of the spring 4. At this time, as an example, the flange portion 20 is pressed by the spring 4 and is in contact with the inside of the other side insertion portion 35.

  In order to prevent troubles of the inspection object such as facilities and machines, the inspector periodically inspects the inspection object K in the auscultation stick 1 in such a state. The inspector brings the friction member 3 into contact with the surface of the inspection object K. In this case, the friction member 3 is brought into contact with the surface of the inspection target K so that the auscultation bar main body 2 is inclined, so that the inspection target K in the friction member main body 30 The contact portion of the friction member 3 is elastic so as to follow the surface shape of the inspection object K, and is in surface contact with a larger area than the contact tip portion 2a. It will not slide against the object K.

  In this manner, with the friction member 3 being stabilized with respect to the inspection object K, the auscultation bar main body 2 is pressed toward the inspection object K against the elasticity of the spring 4. The spring 4 contracts with the bottom surface 34c of the one side insertion portion 34 as a spring seat on one side and the one side annular surface 20a of the flange portion 20 as a spring seat on the other side. At this time, the auxiliary cylinder body 32 can be contracted smoothly by its hardness (harder than the friction member body 30).

  When the spring 4 contracts, the abutting tip 2a accommodated in the auxiliary cylinder 31 protrudes outward from the auxiliary cylinder 31 and abuts on the surface of the inspection object K. Even if the contact tip 2a is sharp and contacts the surface of the inspection object K, the friction member main body 30 (friction member 3) does not slip with respect to the inspection object K, so that the contact tip 2a is inspected. The abutting tip 2a is stabilized against a predetermined part of the inspection object K without slipping from the surface of the object K. Therefore, the abnormal sound capturing property of the inspection object K can be improved by placing the ear abutment portion 2b which is the other end of the auscultation stick main body 2 on the ear of the patrol person.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the auxiliary cylinder 31 is formed separately from the friction member main body 30. However, the auxiliary cylinder 31 can be formed integrally with the friction member main body 30 by curing the friction member main body 30 to form the auxiliary cylinder 31.

  In the above embodiment, the friction member main body 30 is made of silicon elastomer. However, the material is not particularly limited as long as it is a resin composition mixed with a tackifier and can be elastically deformed.

  In the above embodiment, the friction member main body 30 is formed in a spherical shape, but for example, a cube shape or the like is also conceivable, so long as it is elastically deformed and brought into a non-slip when brought into contact with the surface of the inspection object K. The shape is not particularly limited.

DESCRIPTION OF SYMBOLS 1 ... Auscultation stick, 2 ... Auscultation stick main body, 2a ... Contact tip part, 2b ... Ear head, 3 ... Friction member, 4 ... Spring, 30 ... Friction member main body, 31 ... Auxiliary cylinder, 32 ... Auxiliary cylinder Main body, K ... Inspection object

Claims (4)

Check the presence or absence of abnormal noise on the inspection object by bringing the abutting tip, which is one end of the auscultation stick body, into contact with the specified part of the inspection object and placing the other end on the patroler's ear. An auscultation stick used to
A friction member that covers the contact tip and can be brought into contact with the inspection object with a larger area than the contact tip, and that can contact the inspection object by adhesive force,
An auscultation bar characterized in that the abutting tip can be withdrawn from and retracted from the friction member.   The auscultation stick according to claim 1, wherein the abutting tip portion can be moved back and forth with respect to the friction member by elasticity of the spring.   The auscultation bar according to claim 1, wherein the friction member is a sphere, and a contact tip of the auscultation bar main body is inserted through a substantially center of the friction member.   2. The friction member is made of silicon, and the friction member includes a cylindrical portion built in to penetrate the contact tip portion of the auscultation bar main body and the vicinity thereof, and the cylindrical portion is harder than the outside thereof. A stethoscope which selects the claim which concerns on Claim 2 among thru | or 3.

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