JP5463053B2 - Vibration support base - Google Patents

Description

  The present invention relates to a vibration support frame for supporting a device that generates vibration.

  A device configured to include a rotating body, for example, a turbine or a pump, is attached to a frame and installed on the frame. Here, the gantry may be attached to the frame via a vibration isolator as a measure against an earthquake. For example, Patent Document 1 discloses a technique in which a turbine generator frame and a turbine building are integrated, and a vibration isolation device is disposed between the turbine and the generator and the turbine building frame floor. Yes.

Japanese Patent Laid-Open No. 4-127096

  Here, an apparatus including a rotating body, such as a turbine or a pump, vibrates and becomes a vibrating body because the rotating body rotates. Therefore, depending on the natural frequency of the vibration body support frame that is a frame that supports the vibration body, the vibration body support frame may resonate. The technology disclosed in Patent Document 1 can suppress vibration transmitted from the floor to the turbine mount when an earthquake occurs, but avoiding or suppressing resonance of the vibration support frame. Can not.

  The present invention has been made in view of the above, and an object thereof is to avoid or suppress the resonance of the vibrating body support frame.

In order to solve the above-described problems and achieve the object, a vibrating body support frame according to the present invention is a vibrating body support frame that is arranged in contact with a vibrating body that generates vibration and supports the vibrating body, A rigidity adjusting unit is provided that is detachably provided with a rigidity adjusting member that increases the rigidity of the vibrating body support frame. The vibrating body vibrates in a predetermined direction more than the other directions, and the vibrating body support frame includes the vibration adjusting frame. Of the body support gantry, the rigidity adjusting portion is provided at a portion where a virtual plane including the predetermined direction and the central axis of the vibrator support gantry and a member constituting the vibrator support gantry intersect. .

In general, when the rigidity of the gantry changes, the natural frequency also changes. Therefore, the vibration body support frame according to the present invention can adjust the rigidity by attaching / detaching the rigidity adjusting member that increases the rigidity. Thus, the natural frequency of the vibrating body support frame according to the present invention changes. As a result, the vibrating body support frame according to the present invention can avoid or suppress resonance.

As a preferred aspect of the present invention, the rigidity adjusting portion includes a rigidity adjusting member mounting hole into which a rigidity adjusting member mounting bolt for mounting the rigidity adjusting member to the rigidity adjusting portion is screwed. desirable.

As a preferred aspect of the present invention, it is desirable that a notch portion is provided, the rigidity adjusting member is a plate member, and the plate member is detachably provided at a portion corresponding to the notch portion .

Here, in general, the vibrator support frame is designed so as to ensure sufficiently higher rigidity than the required rigidity. Nevertheless, if a rigidity adjusting member is provided on such a vibrating body support frame, the vibrating body support frame will increase in rigidity more than necessary. And such a vibrating body support stand is mass-added more than necessary, or enlarges to the extent that a rigidity adjustment member is attached. However, the vibration support frame according to the present invention increases the mass of the vibration support frame according to the present invention more than necessary because the notch portion is formed even if the rigidity adjustment member is provided in the rigidity adjustment portion. It is possible to suppress the fear and the possibility that the vibrating body support frame according to the present invention is unnecessarily large.

In addition, the rigidity can be adjusted by attaching and detaching the plate member, which is a rigidity adjusting member that increases the rigidity, to and from a portion corresponding to the notch. Thus, the natural frequency of the vibrating body support frame according to the present invention changes. As a result, the vibrating body support frame according to the present invention can avoid or suppress resonance.

As a preferable aspect of the present invention, it is desirable that the rigidity adjusting member is a rib that is attached to a side portion of the vibrating body support frame and protrudes in a direction away from the side portion .

  The present invention can avoid or suppress the resonance of the vibrating body support frame.

FIG. 1 is a front view when the vibrating body support frame of the first embodiment is viewed in the horizontal direction. FIG. 2 is a front view showing the vibrating body support frame of Embodiment 1 after the ribs are attached. FIG. 3 is a top view of the vibrating body support frame according to the first embodiment as viewed from the pump side toward the frame side. FIG. 4 is a top view of the vibrating body support frame of Modification 1 as viewed from the pump side toward the frame side. FIG. 5 is a top view of the vibrating body support frame of Modification 2 as viewed from the pump side toward the frame side. FIG. 6 is a front view showing the vibrating body supporting frame of Embodiment 2 after the reinforcing plate is attached. FIG. 7 is a front view showing the vibrating body supporting frame of Embodiment 2 after the reinforcing plate is removed. FIG. 8 is a cross-sectional view of the vibrating body support frame of Embodiment 3 cut along a virtual plane including the frame center axis. FIG. 9 is a cross-sectional view showing the vibrating body support frame of Embodiment 3 cut along a virtual plane orthogonal to the frame center axis. FIG. 10 is a cross-sectional view illustrating the vibrating body support frame of Modification 3 cut along a virtual plane orthogonal to the frame center axis.

  Hereinafter, embodiments of a vibrating body support frame according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a front view when the vibrating body support frame of the first embodiment is viewed in the horizontal direction. A pump 900 shown in FIG. 1 is a vibrating body that generates vibration when the rotating body rotates. Here, the vibrating body is not limited to a pump, and is, for example, a turbine, a generator, a blower, or the like.

  When the pump 900 is installed on the frame 910, for example, the base plate 920 and the vibrating body support frame 100 are disposed between the pump 900 and the frame 910. Specifically, the base plate 920 is fixed to the frame 910 with, for example, base plate mounting bolts 921. The vibrating body support frame 100 is provided on the surface of the base plate 920 opposite to the frame 910.

  The vibrating body support gantry 100 is, for example, a cylindrical member having the gantry center axis CL01 as a central axis. The vibrating body support gantry 100 is installed on the frame 910 with the base plate side end portion 101 as one end portion in contact with the base plate 920 and the pump 900 in contact with the pump end portion 102 as the other end portion. The vibrating body support base 100 is not limited to a cylindrical member, and, for example, the cross-sectional shape on a virtual plane parallel to the frame 910 may be formed in a polygonal shape.

  For example, the vibrating body support base 100 is formed in a shape in which the size in the radial direction increases from the pump side end portion 102 toward the base plate side end portion 101. Here, in this embodiment, the vibrating body support frame 100 is configured to be installed on the frame 910 via the base plate 920, but may be configured to be installed on the frame 910 without using the base plate 920, for example.

  The pump 900 generates vibration when a rotating body that is a member constituting the pump 900 rotates. This vibration is transmitted from the pump 900 to the vibrating body support frame 100. At this time, when the natural frequency of the vibration support frame 100 approaches the frequency of the pump 900, the vibration support frame 100 resonates. Thereby, there is a possibility that the vibration sound generated when the vibrating body support base 100 resonates increases.

  Therefore, the vibrating body support gantry 100 is provided with a rigidity adjusting unit 110. In general, when the rigidity of the gantry changes, the natural frequency also changes. Therefore, the rigidity of the vibrating body support base 100 is adjusted by attaching / detaching the rigidity adjusting member that increases the rigidity, and the natural frequency changes. As a result, the vibrating body support base 100 can avoid or suppress resonance. Below, the structure of the rigidity adjustment part 110 and a rigidity adjustment member is demonstrated.

  FIG. 2 is a front view showing the vibrating body support frame of Embodiment 1 after the ribs are attached. The rigidity adjusting unit 110 includes a rib attachment hole 111 as shown in FIG. The rib attachment hole 111 is an attachment portion for attaching the rib 112 as the rigidity adjusting member shown in FIG. 2 to the vibrating body support frame 100.

  For example, a plurality of rib attachment holes 111 are formed per one rib 112. The plurality of rib attachment holes 111 are formed in the side portion 103 of the rigidity adjusting portion 110, for example, in two rows from the pump side end portion 102 toward the base plate side end portion 101.

  As shown in FIG. 2, the rib 112 is a member protruding in a direction away from the side peripheral portion 103. The rib 112 is attached to the rigidity adjusting unit 110 of the vibrating body support base 100 from the pump 900 side toward the base plate 920 side. Specifically, the rib 112 is attached to the side portion 103 of the vibrating body support gantry 100 by a rib attachment bolt 113 that is screwed into the plurality of rib attachment holes 111.

  In this embodiment, the rib 112 is attached to the outer peripheral portion of the vibrating body support base 100 formed in a cylindrical shape. In this case, the rib 112 is attached so as to protrude in a direction away from the gantry center axis CL01. Here, the rib 112 may be attached to the inner peripheral surface of the vibrating body support frame 100 formed in a cylindrical shape. In this case, the rib 112 is attached so as to protrude from the inner peripheral surface in a direction approaching the gantry center axis CL01.

  Here, in the present embodiment, the rigidity adjusting unit 110 is configured to include the rib mounting hole 111, and the rib mounting bolt 113 is screwed into the rib mounting hole 111. Rib mounting bolts 113 may be embedded in the side periphery 103. In this case, the rigidity adjusting member is attached to the vibrating body support gantry 100 by the rib attachment bolt 113 embedded in the side peripheral portion 103 and the nut screwed into the rib attachment bolt 113.

  In the vibrating body support gantry 100, the rib 112 is attached to the rigidity adjusting unit 110 provided on the side portion 103, whereby the rigidity of the vibrating body supporting gantry 100 in the portion where the rigidity adjusting unit 110 is provided increases. As a result, the natural frequency of the vibrating body support base 100 increases. Therefore, the vibrating body support base 100 can avoid or suppress resonance.

  Here, it is more preferable that the vibrating body support base 100 has a configuration in which the rib 112 can be fixed to the base plate 920, for example. In this case, the rib 112 has an attachment portion that is a surface parallel to the base plate 920 at the end on the base plate 920 side. The rib 112 is formed with a bolt hole in the mounting portion.

  Further, in this case, the vibrating body support gantry 100 has a bolt hole formed in a portion of the base plate 920 facing the mounting portion. The rib 112 is attached to the base plate 920 by screwing a rib mounting bolt 113 into a bolt hole formed in the mounting portion and a bolt hole formed in the base plate 920.

  In this case, since the rib 112 attached to the rigidity adjusting unit 110 of the vibrating body support gantry 100 is also fixed to the base plate 920, the rigidity of the rib 112 itself increases in the vibrating body support gantry 100. As a result, the vibrating body support base 100 can ensure greater rigidity.

  Here, the vibrating body support base 100 is characterized in that a rib attachment hole 111 is formed in the side portion 103 in advance as the stiffness adjusting portion 110. First, the pump 900 is operated in a state where the rib 112 is not attached to the rigidity adjusting unit 110. At this time, when the vibrating body support base 100 resonates, the rib 112 is attached to the rigidity adjusting unit 110.

  At this time, if the rib attachment hole 111 is not formed in the side portion 103, in order to sufficiently avoid or suppress the resonance of the vibrating body support gantry 100, the part where the rib attachment hole 111 is formed is calculated. Therefore, it is necessary to form the rib attachment hole 111 in the side portion 103.

  As a result, when the rib attachment hole 111 is not formed in the side portion 103, a skill level is required for an operator who performs the operation of attaching the rib 112 to the side portion 103, or a specialist who is familiar with the design of the vibration support frame. It is necessary for the house to witness to form the rib attachment hole 111 in the side portion 103.

  However, the vibrating body support base 100 has a rib attachment hole 111 formed in advance in a predetermined portion of the side portion 103. Therefore, if the vibrating body support gantry 100 resonates, the vibrating body support gantry 100 can be used only by attaching a rib 112 to the rigidity adjusting unit 110 already provided on the side portion 103. The resonance of the support base 100 can be avoided or suppressed.

  That is, if the vibrating body support gantry 100 in which the rib attachment holes 111 are formed in advance at a predetermined position of the side portion 103 is used, resonance of the vibrating body support gantry 100 can be easily avoided or suppressed. Next, an example of a predetermined portion of the side portion 103 where the rigidity adjusting portion 110 is provided will be described.

  Here, the suction pipe 901 and the discharge pipe 902 shown in FIGS. 1 and 2 are connected to the pump 900. The suction pipe 901 and the discharge pipe 902 are connected to the frame 910 from the side opposite to the pump 900 via a hole formed in the frame 910 and a hollow portion of the vibrating body support frame 100 formed in a cylindrical shape. Connected to pump 900.

  The suction pipe 901 includes, for example, a portion having a central axis along the gantry central axis CL01 and a portion included in a virtual plane where the central axis intersects the gantry central axis CL01. The central axis of the suction pipe 901 in which the central axis is included in the virtual plane that intersects the gantry central axis CL01 is referred to as a suction pipe central axis CL02.

  Further, the discharge pipe 902 includes, for example, a portion having a central axis along the gantry central axis CL01 and a portion included in a virtual plane where the central axis intersects the gantry central axis CL01. The central axis of the discharge pipe 902 in the portion where the central axis is included in the virtual plane intersecting the gantry central axis CL01 is defined as the discharge pipe central axis CL03.

  FIG. 3 is a top view of the vibrating body support frame according to the first embodiment as viewed from the pump side toward the frame side. Here, in the present embodiment, as shown in FIG. 3, the suction pipe center axis CL02 and the discharge pipe center axis CL03 are both included in the virtual plane VF01 including the gantry center axis CL01.

  Thereby, the fluid flowing through the suction pipe 901 and the discharge pipe 902 flows along the virtual plane VF01. Therefore, in the pump 900, vibrations in the direction on the virtual plane VF01, for example, vibrations in a direction perpendicular to the gantry center axis CL01 and included in the virtual plane VF01 tend to be larger than vibrations in other directions. is there.

  Therefore, in the vibrating body support base 100, for example, the rigidity adjusting unit 110 is provided in two portions of the side portion 103 where the virtual plane VF01 intersects, and the rib 112 is attached to the rigidity adjusting unit 110. As a result, the vibrating body support base 100 has increased rigidity in the direction on the virtual plane VF01. That is, the vibration support frame 100 has increased rigidity in a direction in which vibration tends to be larger than in other directions.

  As a result, the natural frequency in the direction on the virtual plane VF01 of the vibrating body support base 100 increases. By changing the natural frequency in this way, as a result, the vibrating body support base 100 can avoid or suppress resonance more appropriately.

  In addition, as shown in FIG. 3, the vibration body support base 100 is provided with the rigidity adjusting portion 110 and the rib 112 attached to the side portion 103 other than the two portions where the virtual plane VF01 intersects. Specifically, in this embodiment, the vibration body support gantry 100 includes, for example, the rigidity adjusting units 110 at two locations where the virtual plane VF02 including the gantry center axis CL01 and orthogonal to the virtual plane VF01 intersects the side portion 103. It is done.

  Thereby, the vibration body support base 100 increases the rigidity in the direction on the virtual plane VF02. In this way, the vibration body support frame 100 has increased rigidity in more directions.

  As a result, the vibration support base 100 increases the natural frequency in more directions. By changing the natural frequency in this way, as a result, the vibrating body support base 100 can avoid or suppress resonance in more directions. In addition, since the rigidity in more directions increases, the vibration body support base 100 improves the rigidity balance.

(Modification 1)
FIG. 4 is a top view of the vibrating body support frame of Modification 1 as viewed from the pump side toward the frame side. Here, in some cases, at least one of the suction pipe 901 and the discharge pipe 902 may be disposed closer to the pump 900 than the frame 910.

  For example, when the discharge pipe 902 is disposed closer to the pump 900 than the frame 910, the discharge pipe 902 is connected to the vibrating body support base 200 from the cavity of the vibration body support base 200 through a hole formed in the side portion 103. It extends toward the outside.

  In such a case, even if the rigidity adjusting portion 110 is provided in the portion of the side portion 103 that intersects the virtual plane VF01, the rib 112 is attached to the rigidity adjusting portion 110 because the discharge pipe 902 and the rib 112 interfere with each other. It becomes difficult.

  Therefore, as shown in FIG. 4, the vibrating body support gantry 200 has at least two rigidity adjusting portions 110 provided on the side portion 103, and the two ribs 112 form the virtual plane VF01 on both sides in the circumferential direction of the vibrating body support gantry 200. Is attached adjacent to the portion where the virtual plane VF01 and the side peripheral portion 103 intersect with each other in the circumferential direction of the vibrating body support base 300. Specifically, the vibrating body support base 200 is attached to the side portion 103 so that the two ribs 112 sandwich the discharge pipe 902 from both sides in the circumferential direction of the vibrating body support base 200.

  Thereby, the rigidity of the part which cross | intersects virtual plane VF01 among the parts of the side part 103 is increased by the rib 112 in the vibrating body support stand 200. FIG. Thereby, the rigidity of the vibrating body support base 200 in the direction on the virtual plane VF01 is increased.

  Therefore, the vibrating body support base 200 increases the natural frequency in the direction on the virtual plane VF01. By changing the natural frequency in this way, as a result, the vibrating body support base 200 can avoid or suppress resonance in the direction on the virtual plane VF01.

(Modification 2)
FIG. 5 is a top view of the vibrating body support frame of Modification 2 as viewed from the pump side toward the frame side. When the discharge pipe 902 is disposed on the pump 900 side with respect to the frame 910, as shown in FIG. One first stiffness adjusting unit 114 is provided adjacent to VF01 in the circumferential direction of the vibrator support frame 300. Specifically, the vibrating body support pedestal 300 is provided with one first stiffness adjusting unit 114 adjacent to the discharge pipe 902 in the circumferential direction of the vibrating body support pedestal 300.

  Further, in the vibrating body support gantry 300, the second stiffness adjusting portion 115 is also provided in a portion of the side portion 103 that is symmetrical to the first stiffness adjusting portion 114 about the gantry central axis CL01. In the vibrating body support base 300, the rib 112 is attached to the first stiffness adjusting portion 114 and the second stiffness adjusting portion 115.

  Thereby, the rigidity of the part which cross | intersects virtual plane VF01 among the parts of the side part 103 is increased by the rib 112 in the vibrating body support stand 300. FIG. Thereby, the rigidity of the vibration body support base 300 in the direction on the virtual plane VF01 is increased.

  Therefore, the vibrating body support base 300 increases the natural frequency in the direction on the virtual plane VF01. By changing the natural frequency in this way, as a result, the vibrating body support base 300 can avoid or suppress resonance in the direction on the virtual plane VF01.

(Embodiment 2)
FIG. 6 is a front view showing the vibrating body supporting frame of Embodiment 2 after the reinforcing plate is attached. The vibrating body support gantry 400 according to the second embodiment is characterized in that a reinforcing plate 412 is attached to the rigidity adjusting unit 110 instead of the rib 112.

  The reinforcing plate 412 is a plate member formed to be curved in accordance with the shape of the side portion 103. The reinforcing plate 412 is made of metal, for example. The rigidity of the vibrating body support base 400 is adjusted by attaching a reinforcing plate 412 to the rigidity adjusting unit 110 provided on the side portion 103. For example, a plurality of rigidity adjusting portions 110 are formed in the circumferential direction of the side portion 103.

  Similar to the vibrator support frame 100 of the first embodiment, the vibration body support frame 400 is provided with the rigidity adjusting unit 110 at a portion where the virtual plane VF01 intersects in the side portion 103 shown in FIG. In the present embodiment, the vibration body support base 400 is also provided with the stiffness adjusting unit 110 at a portion of the side portion 103 where the virtual plane VF02 intersects, for example.

  The rigidity adjusting unit 110 includes a reinforcing plate mounting hole 411. For example, a plurality of reinforcing plate mounting holes 411 are formed in the side portion 103. The reinforcing plate 412 is attached to the side portion 103 of the vibrating body support base 400 by a reinforcing plate attaching bolt 413 screwed into the reinforcing plate attaching hole 411. The reinforcing plate 412 is removed from the side portion 103 by removing the reinforcing plate mounting bolt 413 from the reinforcing plate mounting hole 411.

  Accordingly, the rigidity of the vibrating body support base 400 is changed by attaching and detaching the reinforcing plate 412 from the side portion 103. Therefore, the natural frequency of the vibrating body support base 400 changes. As a result, the vibrating body support base 400 can avoid or suppress resonance.

  In this manner, the vibrating body support gantry 400 can achieve the same effects as those of the vibrating body support gantry 100 according to the first embodiment in which the rib 112 is attached to the rigidity adjusting unit 110. Next, a more preferable configuration of the vibrating body support base 400 of the present embodiment will be described.

  FIG. 7 is a front view showing the vibrating body supporting frame of Embodiment 2 after the reinforcing plate is removed. As shown in FIG. 7, the vibrating body support gantry 400 according to the second embodiment is characterized in that a notch 414 for reducing the rigidity of the vibrating body support gantry 400 is formed.

  The notch 414 is formed in the side portion 103. The notch 414 may be a hole that penetrates the vibrating body support base 400 formed in a cylindrical shape in the radial direction, or is a hole that is recessed from the side part 103 toward the base center axis CL01. Also good.

  The vibrating body support base 400 is provided with a notch 414 at a portion where the virtual plane VF01 intersects in the portion of the side portion 103 shown in FIG. In addition, in the vibrating body support base 400, for example, a notch portion 414 is provided in a portion of the side portion 103 where the virtual plane VF02 intersects.

  In the vibrating body support base 400, a plurality of reinforcing plate attachment holes 411 are formed in the side portion 103 so as to surround the notch portion 414 formed in the side portion 103. Accordingly, as shown in FIG. 6, when the reinforcing plate 412 is attached to the rigidity adjusting unit 110, the notch 414 is covered with the reinforcing plate 412. Therefore, when the reinforcing plate 412 is attached to the stiffness adjusting unit 110, the rigidity of the portion where the notch 414 is formed in the vibrating body support base 400 increases.

  Here, in general, the vibrator support frame is designed so as to ensure sufficiently higher rigidity than the required rigidity. Nevertheless, when a rib or a reinforcing plate is attached to such a vibrating body support frame, the rigidity of the vibrating body support frame increases more than necessary. And such a vibrating body support stand is mass-added more than necessary, or enlarges by the amount which a rib and a reinforcement board are attached.

  However, even if the reinforcing plate 412 is attached to the rigidity adjusting unit 110, the vibrating body support gantry 400 may increase the mass of the oscillating body support gantry 400 more than necessary because the notch 414 is formed. The possibility that the body support base 400 becomes larger than necessary can be suppressed.

  In addition, the notch 414 is formed in a size and shape that can ensure the rigidity required for the vibrating body support base 400 even when the reinforcing plate 412 is not attached to the stiffness adjusting unit 110. Thereby, the vibrating body support base 400 can ensure necessary rigidity even when the rigidity adjusting member is detached from the rigidity adjusting unit 110.

  Next, a method for suppressing resonance by the vibrating body support base 400 will be described. In the vibrating body support base 400, for example, the pump 900 is operated in a state in which the reinforcing plate 412 is attached to the rigidity adjusting unit 110 and the notch 414 is covered with the reinforcing plate 412.

  When the vibrating body support frame 400 resonates, the reinforcing plate 412 is removed from the rigidity adjusting unit 110 of the vibrating body support frame 400. Thereby, the rigidity of the vibrating body support base 400 is lowered. Thereby, the natural frequency of the vibrating body support base 400 decreases. By changing the natural frequency in this way, as a result, the vibrating body support base 400 can avoid or suppress resonance.

  Alternatively, in the vibrating body support base 400, for example, the pump 900 is operated in a state where the reinforcing plate 412 is removed from the rigidity adjusting unit 110 and the notch 414 is not covered with the reinforcing plate 412. When the vibrating body support frame 400 resonates, the reinforcing plate 412 is attached to the rigidity adjusting unit 110 of the vibrating body support frame 400.

  Thereby, the rigidity of the vibrating body support base 400 increases. As a result, the natural frequency of the vibrating body support base 400 increases. By changing the natural frequency in this way, as a result, the vibrating body support base 400 can avoid or suppress resonance.

  As described above, in the vibration support frame, the rigidity adjustment member is attached to and detached from the rigidity adjustment unit, whereby the rigidity of the vibration support frame changes and the natural frequency of the vibration support frame changes. Thereby, the vibrating body support frame can avoid or suppress resonance.

(Embodiment 3)
FIG. 8 is a cross-sectional view of the vibrating body support frame of Embodiment 3 cut along a virtual plane including the frame center axis. FIG. 9 is a cross-sectional view showing the vibrating body support frame of Embodiment 3 cut along a virtual plane orthogonal to the frame center axis. 8 is characterized in that it is configured in a double cylindrical shape. As shown in FIGS. 8 and 9, the vibrating body support frame 500 includes an inner cylindrical member 503, an outer cylindrical member 504, and a lid 513.

  As shown in FIG. 9, when the inner cylindrical member 503 and the outer cylindrical member 504 are cut on the same virtual plane orthogonal to the gantry center axis CL01, the inner diameter of the outer cylindrical member 504 is the same as that of the inner cylindrical member 503. It becomes larger than the outer diameter.

  In the vibrating body support base 500, the inner cylindrical member 503 is disposed inside the outer cylindrical member 504. Thereby, in the vibrating body support base 500, a gap is formed between the outer peripheral portion of the inner cylindrical member 503 and the inner peripheral portion of the outer cylindrical member 504.

  A gap formed between the outer peripheral portion of the inner cylindrical member 503 and the inner peripheral portion of the outer cylindrical member 504 is a rigidity adjusting portion. Specifically, the rigidity adjusting portion is a hollow portion 511 formed between the outer peripheral portion of the inner cylindrical member 503 and the inner peripheral portion of the outer cylindrical member 504.

  As shown in FIG. 9, the cavity 511 is formed, for example, on the entire circumference in the circumferential direction of the vibrating body support frame 500. For example, the cavity 511 opens to the outside at the pump-side end 512 of the vibrating body support base 500.

  The lid 513 is attached to an opening 514 formed in the lid 513 so as to close the cavity 511. Here, the opening part 514 should just be the structure which connects the cavity part 511 and the exterior, for example, may be formed in the side peripheral part of the outer side cylindrical member 504. FIG.

  Next, a method for avoiding or suppressing the resonance of the vibrating body support gantry 500 with the vibrating body support gantry 500 will be described. In the vibrating body support base 500, for example, the pump 900 is operated in a state where nothing is filled in the cavity 511. Here, when the vibrating body support gantry 500 resonates, the lid 513 is removed from the opening 514 of the vibrating body support gantry 500.

  In the vibrating body support base 500, the cavity 511 is filled with the stiffness adjusting member via the opening 514. The stiffness adjusting member is a solidified material that hardens over time, and is, for example, concrete.

  The concrete poured into the hollow portion 511 is hardened in the hollow portion 511 and fixed to the inner cylindrical member 503 and the outer cylindrical member 504. Next, the lid 513 is attached to the opening 514 of the vibrating body support base 500.

  In this way, by filling the cavity 511 with concrete, the vibrating body support gantry 500 has increased rigidity of the vibrating body support gantry 500. Therefore, the vibration support base 500 has an increased natural frequency. By changing the natural frequency in this way, as a result, the vibrating body support base 500 can avoid or suppress resonance.

  Here, the solidified material filled in the cavity 511 may be, for example, asphalt or melted metal in addition to concrete. In other words, the solidified material filled in the cavity 511 is a substance that adheres to the inner cylindrical member 503 and the outer cylindrical member 504 after filling the cavity 511 and increases the rigidity of the vibrating body support frame 500. That's fine.

(Modification 3)
FIG. 10 is a cross-sectional view illustrating the vibrating body support frame of Modification 3 cut along a virtual plane orthogonal to the frame center axis. In the vibrating body support gantry 500 shown in FIG. 9, the cavity portion 511 is formed on the entire circumference in the circumferential direction of the vibrating body support gantry 500. However, the vibrating body support frame 600 of Modification 3 shown in FIG. Is characterized in that the hollow portion 611 is formed in a part of the circumferential direction of the vibrating body support frame 600.

  A plurality of the hollow portions 611 are formed, for example. The cavity 611 includes, for example, a first cavity 611a, a second cavity 611b, a third cavity 611c, and a fourth cavity 611d. The first cavity portion 611a and the second cavity portion 611b are formed at a portion where the vibrating body support base 600 and the virtual plane VF01 intersect.

  As a result, the first cavity portion 611a and the second cavity portion 611b are filled with the solidified material, so that the rigidity of the vibration body support gantry 600 in the direction on the virtual plane VF01 increases. Therefore, the vibration body support gantry 600 has an increased natural frequency of the vibration body support gantry 600 in the direction on the virtual plane VF01. By changing the natural frequency in this way, as a result, the vibrating body support base 600 can avoid or suppress resonance in the direction on the virtual plane VF01.

  In addition, the third cavity portion 611c and the fourth cavity portion 611d are formed, for example, at a portion where the virtual plane VF02 and the vibrating body support frame 600 intersect. As a result, the third cavity portion 611c and the fourth cavity portion 611d are filled with the solidified material, whereby the vibration body support gantry 600 has increased rigidity in the direction on the virtual plane VF02.

  Therefore, the vibration body support gantry 600 increases the natural frequency of the vibration body support gantry 600 in the direction on the virtual plane VF02. By changing the natural frequency in this way, as a result, the vibrating body support base 600 can avoid or suppress resonance in the direction on the virtual plane VF02.

  Here, the vibrating body support gantry 600 has a plurality of hollow portions by forming partition portions 614 shown in FIG. 10 in the gaps between the inner cylindrical member 503 and the outer cylindrical member 504 shown in FIG. 611 is formed. Alternatively, the vibrating body support base 600 may be configured by one cylindrical member, and a plurality of holes 611 may be formed along a side peripheral portion of the cylindrical member.

  Further, the number of the hollow portions 611 formed in the vibrating body support base 600 is not limited to four, and it is sufficient that at least one cavity is formed. If at least one cavity 611 is formed in the vibrating body support frame 600, the vibrating body support frame 600 is connected to the frame center axis CL01 and the hollow part 611 by filling the cavity part 611 with a solidified material. Increased rigidity.

  As a result, the vibration body support gantry 600 increases the natural frequency of the vibration body support gantry 600 in the direction connecting the gantry center axis CL01 and the cavity 611. By changing the natural frequency in this way, as a result, the vibrating body support gantry 600 can avoid or suppress the resonance in the direction connecting the gantry center axis CL01 and the cavity 611.

  As described above, the vibrating body support frame according to the present invention is useful for, for example, a vibrating body support frame that supports a vibrating body that generates vibration when the rotating body rotates. Suitable for avoiding or suppressing.

100 to 600 Vibration support base 101 Base plate side end portion 102 Pump side end portion 103 Side portion 110 Rigidity adjusting portion 111 Rib mounting hole 112 Rib 113 Rib mounting bolt 114 First stiffness adjusting portion 115 Second rigidity adjusting portion 411 Reinforcement Plate mounting hole 412 Reinforcing plate 413 Reinforcing plate mounting bolt 414 Notch 503 Inner cylindrical member 504 Outer cylindrical member 511 Cavity 512 Pump side end 513 Lid 514 Opening 611 Cavity 611a First cavity 611b Second cavity Part 611c Third cavity 611d Fourth cavity 614 Partition 900 Pump 901 Suction pipe 902 Discharge pipe 910 Frame 920 Base plate 921 Base plate mounting bolt CL01 Base center axis CL02 Suction pipe center axis CL03 Discharge pipe center axis VF01 Virtual plane VF02 virtual plane

Claims (2)

Resulting vibration, and a vibration member support cradle to a predetermined direction is disposed in contact with the vibration member that vibrate larger than the other direction to support the vibrating body,
A notch formed in a side portion of the vibrator support frame;
Increased rigidity of the vibrating body support frame at a portion of the vibrating body support frame where a virtual plane including the predetermined direction and the central axis of the vibrating body support frame intersects with a member constituting the vibrating body support frame. A rigidity adjusting member provided so as to be detachable and cover the notch, and a plate member to be
Vibrator support cradle, wherein Rukoto equipped with. The stiffness adjuster is
2. The vibrating body support frame according to claim 1, further comprising a rigidity adjusting member mounting hole into which a rigidity adjusting member mounting bolt for mounting the rigidity adjusting member to the rigidity adjusting portion is screwed.

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