JP5779056B2 - Vibration isolator - Google Patents

Description

  The present invention relates to an anti-vibration device, and more particularly to an anti-vibration device that supports an anti-vibration object on a support surface.

  2. Description of the Related Art Conventionally, a technique for suppressing transmission of vibration from a vibration isolation object to a support surface by interposing a vibration isolation device between the vibration isolation object and the support surface is known.

  For example, a generator used in a wind turbine generator is supported on a support surface by vibration isolation via the plurality of vibration isolation devices. Here, the configuration of the wind turbine generator will be briefly described. A tower standing on the ground, a hangar called a nacelle attached to the top of the tower, and a wing arranged on the tip side of the nacelle. A gearbox and a generator are installed on the support surface in the nacelle. When the blades receive wind and rotate, the rotation is transmitted to the speed increaser, and the rotation increased by the speed increaser is transmitted to the generator via the output shaft of the speed increaser to generate electric power. . Therefore, when installing this generator, it is necessary to connect so that the drive shaft of a generator and the output shaft of a gearbox may be in a straight line.

  Patent Document 1 discloses a vibration isolator that supports such a generator as a vibration isolator. The vibration isolator includes a bearing base connected to a generator via a fixing screw, and the fixing screw is passed through a hole in a leg portion of the generator and fixed in the bearing base. In order to adjust the position of the generator in the vertical direction, the bearing stand is provided with a vertical adjustment screw that can be screwed vertically by means of a threaded part connected to the bearing stand. In order to receive a square spanner, a polygonal opening having a diameter larger than the diameter of the fixing screw is provided in the center. The vertical adjustment screw is lifted and lowered in a state where the load of the generator is applied by being tightened or loosened by a polygonal wrench passed through the hole with the fixing screw removed in advance. Further, in order to adjust the position of the generator in the horizontal direction, the bearing stand includes a movable carriage having a hole, the carriage is provided between the bearing stand and the legs of the generator, It can move horizontally at right angles to the axis of the generator, and the horizontal movement of the carriage fixed to the carriage and the carriage can be done by tightening the screw connector provided on the carriage to the screw thread. It becomes.

International Publication No. 2010/025880 Pamphlet

  However, in the vibration isolator disclosed in Patent Document 1, since the moving direction of the carriage in the horizontal direction is fixed, the position adjustment in the horizontal direction of the object to be shaken placed on the carriage is horizontal. There was a problem that the degree of freedom was limited.

  The present invention has been made in view of the above circumstances, and in a vibration isolating apparatus that supports a vibration isolating object against a supporting surface, the degree of freedom in adjusting the position of the vibration isolating object in the horizontal direction is provided. An object of the present invention is to provide a vibration isolator capable of improving the noise.

  In order to achieve the above object, the present invention is configured such that a horizontal movement mechanism for placing a vibration-proof object and moving the vibration-proof object in a predetermined direction in the horizontal direction is rotatable around an axis extending in the vertical direction. It is characterized by being.

  Specifically, the present invention is directed to a vibration isolating apparatus that supports a vibration isolating object with respect to a support surface, and has taken the following solutions.

According to a first aspect of the present invention, there is provided a lower support member fixed to the support surface, an upper support member disposed on the lower support member, and the upper support member and the lower support member. An elastic body that is elastically connected to each other, and a horizontal movement mechanism that is disposed on the upper support member and on which the anti-vibration object is placed and moves the anti-vibration object in a predetermined horizontal direction When, and a shaft member connected to the vibration-proof object extending upwardly from the upper support member, the horizontal movement mechanism is configured to be rotatable around an axis extending in the vertical direction, the The horizontal movement mechanism is formed such that a first shaft hole through which the shaft member passes is formed so that the shaft member can move in the predetermined direction, and a horizontal placement plate portion on which the vibration isolation object is placed; A second shaft hole through which the shaft member passes is formed, and the placement plate portion is placed on the placement plate. And a rotating plate that rotates about the shaft member axis, the upper mounting plate portion is characterized in that it has a, a loading plate moving mechanism is moved in the predetermined direction.

  According to this, since the horizontal movement mechanism for placing the vibration-proof object and moving the vibration-proof object in a predetermined direction in the horizontal direction is configured to be rotatable around an axis extending in the vertical direction, The object to be shaken can be moved in any horizontal direction. For this reason, the freedom degree of position adjustment in the horizontal direction of a vibration-proof object can be improved.

The shaft further includes a shaft member that extends upward from the upper support member and is connected to the vibration isolating object, and the horizontal movement mechanism has a first shaft hole through which the shaft member passes to place the vibration isolating object. A horizontal mounting plate portion and a second shaft hole through which the shaft member penetrates are formed, and the mounting plate portion is mounted to rotate the mounting plate portion around the axis of the shaft member. Since it has a rotation board part, a mounting board part can be turned to the arbitrary directions in a horizontal direction by rotating a rotation board part. Furthermore, the first shaft hole is the shaft member is formed so as to be movable in the predetermined direction, and a plate portion mounting the horizontal movement mechanism comprises a mounting plate portion moving mechanism for moving the said predetermined direction Yes. As described above, the placing plate portion can be directed in the horizontal direction and moved in that direction.

According to a second aspect of the present invention, in the first aspect of the present invention, the horizontal movement mechanism is attached so as to be rotatable about the axis of the shaft member, and further includes a vertical movement mechanism that moves the vibration isolation object in the vertical direction. It is characterized by comprising.

  According to this, since the horizontal movement mechanism is attached so as to be rotatable around the axis of the shaft member and further includes a vertical movement mechanism for moving the vibration isolation object in the vertical direction, In addition to horizontal position adjustment, vertical position adjustment is also possible.

In a third aspect based on the first or second aspect of the invention, the loading plate moving mechanism extends downwardly from one side of the predetermined direction in the outer peripheral edge of the upper mounting plate portion, through the the predetermined direction A first vertical plate portion having a first through-hole formed therein and a nut fixed to a periphery of the first through-hole, and the first vertical plate on one side in the predetermined direction with respect to the first vertical plate portion. A second vertical plate portion formed with a second through-hole facing the portion and penetrating in the predetermined direction, and extending from the rotating plate portion to the one side with respect to the first vertical plate portion in the predetermined direction. A connecting plate portion connected to the second vertical plate portion, having a width larger than the first vertical plate portion in the predetermined direction, and having an insertion hole into which the first vertical plate portion is inserted; and A bolt inserted from one side of the second through hole in the predetermined direction and screwed into the nut. It is intended to.

  According to this, a first through hole extending downward from one side of the predetermined direction on the outer peripheral edge of the mounting plate portion and penetrating in the predetermined direction is formed, and a nut is fixed to the peripheral edge of the first through hole. A first vertical plate portion formed and a second through hole formed on one side of the predetermined direction from the first vertical plate portion so as to face the first vertical plate portion and penetrate in the predetermined direction. A vertical plate portion and a width extending from the rotating plate portion to the one side of the first vertical plate portion in the predetermined direction and connected to the second vertical plate portion, and being thicker than the first vertical plate portion in the predetermined direction And a connecting plate portion in which an insertion hole into which the first vertical plate portion is inserted is formed, and a bolt inserted from one side of the predetermined direction of the second through hole and screwed into the nut, By turning this bolt, the nut fixed to the first vertical plate moves in the predetermined direction. Therefore the mounting plate portion is moved in the predetermined direction. In this way, the mounting plate portion can be moved in the horizontal direction by a simple operation of turning the bolt.

In a fourth aspect based on the first to third any one of the, the first shaft hole, the long axis direction is to being a long hole that matches the predetermined direction.

  According to this, since the first shaft hole is a long hole whose major axis direction coincides with the predetermined direction, the movement of the mounting plate portion in the orthogonal direction orthogonal to the predetermined direction is restricted. For this reason, when moving a mounting board part to a horizontal direction, this mounting board part can be moved smoothly, without rattling in the said orthogonal direction.

In a fifth aspect based on the first to third any one of the, the first shaft hole is characterized in that a large circular hole of diameter than the shaft member.

  According to this, since the first shaft hole is a circular hole having a diameter larger than that of the shaft member, the placement plate portion is allowed to move in any horizontal direction. Therefore, for example, the vibration isolating object is supported by a plurality of anti-vibration devices, and only the predetermined anti-vibration device is operated to move the mounting plate portion in the horizontal direction so that the position of the anti-vibration object in the horizontal direction When the adjustment is performed, the mounting plate portion of the other vibration isolating apparatus can move in the horizontal direction as the vibration isolating object moves.

  According to the present invention, since the horizontal movement mechanism for moving the mounting plate portion on which the vibration-proof object is mounted in the horizontal direction is rotatable about the axis extending in the vertical direction, the mounting plate portion is moved in the horizontal direction. Therefore, it is possible to improve the degree of freedom in adjusting the position of the vibration-proof object in the horizontal direction.

It is a partially cutaway perspective view showing a wind turbine generator provided with a vibration isolator according to an embodiment of the present invention. It is a perspective view which shows the vibration isolator which concerns on embodiment of this invention. It is a disassembled perspective view which shows the vibration isolator which concerns on embodiment of this invention. It is a top view which shows the vibration isolator which concerns on embodiment of this invention. It is the side view of the vibration isolator seen from the arrow V direction of FIG. It is the side view of the vibration isolator seen from the arrow VI direction of FIG. It is a side view which shows the vibration isolator seen from the arrow VII direction of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following description of the preferred embodiment is merely illustrative in nature. In the present embodiment, an example will be described in which the vibration isolator of the present invention is applied to a vibration isolator that supports a vibration generator for a wind power generator.

  FIG. 1 is a perspective view showing a wind turbine generator provided with a vibration isolator 1 according to an embodiment of the present invention. A speed increaser 110 and a generator 120 are installed in a substantially rectangular parallelepiped nacelle 100 fixed to the top of the tower of the wind power generator. Specifically, the speed increaser 110 and the generator 120 are installed on the support surface 100a which is the bottom surface in the nacelle 100 so that the output shaft of the speed increaser 110 and the drive shaft of the generator 120 are in a straight line. The four corners 120a, 120a,... (See FIG. 7) at the bottom of the generator 120 are supported by four anti-vibration devices 1, 1,... Fixed on the support surface 100a. . In FIG. 1, the two vibration isolators 1 and 1 arranged at the back of the page are hidden. In FIG. 1, the vibration isolators 1, 1,... Are simplified, and the connection shaft 130 is simplified by connecting the output shaft of the speed increaser 110 and the drive shaft of the generator 120.

-Overall configuration of the vibration isolator-
The structure of the vibration isolator 1 which concerns on embodiment of this invention is demonstrated with reference to FIG. 2 thru | or FIG. FIG. 2 is a perspective view showing the vibration isolator 1. FIG. 3 is an exploded perspective view showing the vibration isolator 1. FIG. 4 is a plan view showing the vibration isolator 1. FIG. 5 is a side view of the vibration isolator 1 as viewed from the direction of the arrow V in FIG. FIG. 6 is a side view of the vibration isolator 1 as viewed from the direction of the arrow VI in FIG.

  The vibration isolator 1 includes a substantially hat-shaped lower support member 2 fixed on the support surface 100a, and the vibration isolator 1 is installed on the support surface 100a at four corners of the lower support member 2. Are formed with bolt fastening holes 2a, 2a,. The protruding portion that protrudes upward at the center portion of the lower support member 2 is covered with a frustoconical upper support member 3 at an interval. A rubber elastic body (elastic body) 4 is disposed between the upper support member 3 and the protruding portion (see FIG. 5), and the upper support member 3 and the lower support member are supported by the rubber elastic body 4. 2 are elastically connected to each other. Further, the shaft member 5 whose lower end is fixed to the center of the upper support member 3 extends upward, and the upper end of the shaft member 5 passes through the four corners 120 a of the generator 120 and is connected to the generator 120. ing. A male screw 5 a is formed at the upper end of the shaft member 5. On the other hand, on the upper support member 3, the four corners 120a of the generator 120 are placed, and a horizontal movement mechanism 7 for moving the generator 120 in a predetermined direction in the horizontal direction is disposed. When the four corners 120 a are placed on the nut 7 and the nut is screwed onto the male screw 5 a, the generator 120 is fixed on the horizontal movement mechanism 7.

The horizontal movement mechanism 7 is moved in the vertical direction by the vertical movement mechanism 6 attached to the shaft member 5. Therefore, the vertical movement mechanism 6 moves the generator 120 mounted on the horizontal movement mechanism 7 in the vertical direction. The vertical movement mechanism 6 has a cylindrical portion 60 formed of a cylindrical member having a shaft hole 60a penetrating in the vertical direction. The shaft member 5 passes through the shaft hole 60a, and a male screw (not shown) is formed on a side surface of a portion corresponding to the shaft hole 60a. On the other hand, a female screw (not shown) is formed on the inner peripheral surface of the shaft hole 60a. Therefore, by rotating the column part 60 around the axis of the shaft member 5, the column part 60 moves in the vertical direction. Further, the central portion of the outer surface of the cylindrical portion 60 in the vertical direction is provided at intervals of 90 ° in the circumferential direction, opens outward, and extends in the radial direction of the shaft member 5 (hereinafter referred to as the axial radial direction) 4. One of the vertical position adjustment holes 60b, 60b, ... are al provided. The cylindrical portion 60 can be easily moved in the vertical direction by inserting a rod member into the vertical position adjusting holes 60b, 60b,. In addition, an annular portion 61 formed of an annular member having a through hole through which the shaft member 5 passes and having an outer diameter smaller than that of the cylindrical portion 60 is integrated with the cylindrical portion 60 at the upper end surface of the cylindrical portion 60. Further, a circular flange 62 extending from the outer surface to the outside in the axial radial direction is provided integrally with the cylindrical portion 60 at the lower end portion of the cylindrical portion 60.

  The horizontal movement mechanism 7 is attached to the vertical movement mechanism 6 so as to be rotatable around the axis of the shaft member 5.

-Configuration of horizontal movement mechanism-
Next, a specific configuration of the horizontal movement mechanism 7 will be described.

The horizontal movement mechanism 7 includes a horizontal mounting plate portion 70 on which the four corners 120a of the generator 120 are mounted, and the mounting plate portion 70 mounted thereon. The mounting plate portion 70 is attached to the shaft member 5. An upper rotating plate portion (rotating plate portion) 71 that rotates around an axis, a lower rotating plate portion 72 that rotates around the axis of the shaft member 5 below the upper rotating plate portion 71, and A reciprocating mechanism ( mounting plate portion moving mechanism) 73 that reciprocates the mounting plate portion 70 in the horizontal direction.

  The mounting plate portion 70 is formed of a substantially circular plate member, and a first shaft hole 70a through which the shaft member 5 passes is formed at a substantially central portion thereof. The first shaft hole 70 a is a long hole whose major axis direction coincides with a direction in which a horizontal position adjusting bolt 78 described later extends, and whose length in the minor axis direction is slightly larger than the diameter of the shaft member 5. Therefore, the shaft member 5 can move in the first shaft hole 70a in the long axis direction of the first shaft hole 70a. Here, if this major axis direction in which the shaft member 5 can move is defined as a movement direction (predetermined direction), the mounting plate portion 70 has a first vertical extension extending downward from one side of the movement direction on the outer peripheral edge thereof. A plate portion 74 is formed. The first vertical plate portion 74 has a substantially rectangular shape, and a first through hole 74a penetrating in the moving direction is formed in the central portion. A nut 75 coaxial with the first through hole 74a is fixed to the periphery of the first through hole 74a on the side surface of the first vertical plate portion 74 on the outer side in the moving direction.

  The upper rotating plate 71 has substantially the same circular shape as the mounting plate 70 described above, and is a second shaft hole into which the annular portion 61 of the vertical movement mechanism 6 is fitted and the shaft member 5 penetrates. 71 a is formed, and the peripheral edge portion of the second shaft hole 71 a is placed on the upper end surface of the cylindrical portion 60 of the vertical movement mechanism 6. Accordingly, the upper rotation plate portion 71 can be rotated around the axis of the shaft member 5. Therefore, when the upper rotation plate portion 71 rotates around the axis of the shaft member 5, the placement plate portion 70 placed on the upper rotation plate portion 71 can rotate. Become.

  Further, the upper rotating plate portion 71 is connected by a connecting plate portion 76 and a second vertical plate portion 76, which will be described later, disposed on one side of the moving direction with respect to the first vertical plate portion 74. The connecting plate portion 76 is a substantially rectangular plate member extending horizontally from one side in the moving direction on the outer peripheral edge of the upper rotating plate portion 71, and is located at a position corresponding to the first vertical plate portion 74. An insertion hole 76a into which the first vertical plate portion 74 is inserted from above is formed. The insertion hole 76a is formed so that the width in the moving direction is thicker than that of the first vertical plate portion 74, and the first vertical plate portion 74 is divided by the width of the insertion hole 76a in the moving direction. It is only possible to move. Therefore, the above-mentioned mounting plate portion 70 integrated with the first vertical plate portion 74 can also move in the moving direction by the width.

  The lower rotating plate portion 72 has substantially the same shape as the plate member made up of the upper rotating plate portion 71 and the connecting plate portion 76 and has one end portion in the longitudinal direction (the vertical movement mechanism 6 on the left side in FIG. 4). A through-hole into which the cylindrical portion 60 is inserted is formed in a semicircular portion of the portion overlapping the cylindrical portion 60, and the peripheral portion of the through-hole is placed on the flange portion 62 of the vertical movement mechanism 6. ing. Therefore, the lower rotation plate portion 72 can also rotate around the axis of the shaft member 5. On the other hand, the other end portion in the longitudinal direction of the lower rotating plate portion 72 extends to the same position as one end in the moving direction of the connecting plate portion 76, and the connecting plate portion 76 and the lower rotating plate portion. 72 in the moving direction are connected to each other by the second vertical plate portion 77.

  The second vertical plate portion 77 is a U-shaped plate member as viewed from the vertical direction. An intermediate portion of the second vertical plate portion 77 faces the first vertical plate portion 74 and connects the other ends in the moving direction of the connecting plate portion 76 and the lower rotating plate portion 72. And the 2nd through-hole 77a penetrated in the said moving direction is formed in the center of this intermediate part (refer FIG.4 and FIG.5). A horizontal position adjusting bolt 78 inserted from the outside in the moving direction of the second vertical plate portion 77 passes through the second through hole 77a, and the horizontal position adjusting bolt 78 is screwed into the nut 75. ing.

  The reciprocating mechanism 73 includes the first vertical plate portion 74, the nut 75, the connecting plate portion 76, the second vertical plate portion 77, and the horizontal position adjusting bolt 78. When the horizontal position adjusting bolt 78 is turned, the nut 75 fixed to the first vertical plate portion 74 moves in the moving direction, whereby the mounting plate portion 70 integrated with the first vertical plate portion 74 is Move back and forth in the direction of movement.

  Note that a portion of the screw groove portion of the horizontal position adjusting bolt 78 near the hexagonal portion has a smaller diameter than the other screw groove portions, and the small bolts 79 and 79 are connected to the connecting plate portion 76 so as to fit into the small diameter portion. It is fixed to. Thereby, the horizontal position adjusting bolt 78 is prevented from coming off from the second through hole 77a.

  As shown in FIG. 2, the horizontal movement mechanism 7 having the above configuration is attached to the column part 60, the ring part 61, and the collar part 62 of the vertical movement mechanism 6 from above and rotates around the axis of the shaft member 5. To do.

-Generator installation method-
Next, a method for installing the generator 120 will be described with reference mainly to FIGS. FIG. 7 is a side view showing the vibration isolator 1 viewed from the direction of arrow VII in FIG. For convenience of explanation, in FIG. 1, the direction in which the connecting shaft 130 extends is defined as the X direction, and the horizontal direction orthogonal to this direction is defined as the Y direction. In addition, when installing the generator 120, the gear box 110 is installed in advance on the support surface 100a. Further, mounting holes 120b, 120b,... Having a diameter larger than that of the shaft member 5 are provided at the four corners 120a, 120a,.

  First, four vibration isolators 1, 1,... Are installed and fixed at a planned installation location of the generator 120 on the support surface 100a. Next, the generator 120 is lifted, and the mounting plate portions 70, 120b,... Are passed through the shaft members 5, 5, ..., respectively, so that the drive shaft of the generator 120 is parallel to the X direction. Are placed on 70,..., And nuts are temporarily tightened to the male screws 5a, 5a,. Subsequently, the cylindrical portions 60, 60,... Of the vertical movement mechanisms 6, 6,... Are rotated to make the height of the drive shaft of the generator 120 coincide with the height of the output shaft of the speed increaser 110. Then, in a state where the generator 120 is fixed at that position, the horizontal movement mechanisms 7, 7,... Are struck with a plastic hammer or the like to rotate around the shaft members 5, 5,. Are adjusted in the horizontal direction, and the horizontal position adjusting bolts 78, 78,... Are turned to match the drive shaft of the generator 120 with the output shaft of the speed increaser 110. Finally, the bolt 120 that has been temporarily tightened is tightened to fix the generator 120. By the above procedure, the drive shaft of the generator 120 and the output shaft of the speed increaser 110 can be connected so as to be in a straight line.

  When the horizontal position of the generator 120 is adjusted, the generator 120 may rotate in the horizontal direction around its center of gravity. As a method of correcting the direction of the generator 120 rotated in this way, there is a method of moving the four corners 120a, 120a,... Of the generator 120 toward the center of gravity. In order to perform such movement with the conventional vibration isolator, since the movement direction of the carriage on which the generator is mounted is fixed, the vibration isolation installed so that the carriage can move in the X direction. A device and a vibration isolator installed so that the carriage can move in the Y direction must be provided, and each of these vibration isolators must be operated to correct the direction of the generator 120. On the other hand, in the vibration isolator 1 of the present embodiment, the mounting plate portion 70 can be moved in any direction in the horizontal direction, so that only one vibration isolator 1 is operated to correct the direction of the generator 120. be able to. Therefore, the operation for correcting the direction of the generator 120 is facilitated by using the vibration isolator 1 of the present embodiment.

≪Effect≫
According to the above-described embodiment, the horizontal movement mechanism 7 that moves the generator 120 in the moving direction by placing the four corners 120a of the generator 120 is provided, and the horizontal movement mechanism 7 rotates around an axis extending in the vertical direction. Since it is configured to be movable, the generator 120 can be moved in any horizontal direction. For this reason, the freedom degree of the position adjustment in the horizontal direction of the generator 120 can be improved.

  Moreover, according to the said embodiment, it further comprises the shaft member 5 extended upward from the upper side support member 3 and connected with the generator 120, and the horizontal movement mechanism 7 has the 1st shaft hole 70a which the shaft member 5 penetrates. A horizontal placement plate portion 70 is formed and on which the four corners 120a of the generator 120 are placed, and a second shaft hole 71a through which the shaft member 5 passes, and the placement plate portion 70 is placed and the Since the upper rotation plate portion 71 that rotates the mounting plate portion 70 about the axis of the shaft member 5 is provided, the upper rotation plate portion 71 is rotated so that the mounting plate portion 70 can be arbitrarily moved in the horizontal direction. Can be directed. Further, the first shaft hole 70a of the mounting plate portion 70 is formed so that the shaft member 5 can move, and the horizontal movement mechanism 7 has a reciprocating mechanism 73 for reciprocating the mounting plate portion 70. ing. As described above, the mounting plate portion 70 can be moved in that direction by directing the mounting plate portion 70 in an arbitrary direction in the horizontal direction.

  Further, according to the embodiment, since the first shaft hole 70a is a long hole whose major axis direction coincides with the moving direction, the movement of the mounting plate portion 70 in the orthogonal direction perpendicular to the moving direction can be performed. Be regulated. For this reason, when moving the mounting board part 70 to a horizontal direction, this mounting board part 70 can be moved smoothly, without rattling in the said orthogonal direction.

  Moreover, according to the said embodiment, the horizontal moving mechanism 7 is attached so that rotation around the axis | shaft of the shaft member 5, and the vertical moving mechanism 6 which moves the generator 120 to an up-down direction is further provided. Therefore, the generator 120 can be moved in the vertical direction.

  Furthermore, according to the above-described embodiment, the first through hole 74a is formed which extends downward from one side of the moving direction on the outer peripheral edge of the mounting plate portion 70 and penetrates in the moving direction. A first vertical plate portion 74 having a nut 75 fixed to the periphery of 74a, and opposed to the first vertical plate portion 74 on one side of the moving direction from the first vertical plate portion 74 and penetrates in the moving direction. A second vertical plate portion 77 formed with a second through-hole 77a, and the second vertical plate portion 77 extending from the upper rotating plate portion 71 to the one side of the first vertical plate portion 74 in the moving direction. A connecting plate portion 76 having a width larger than that of the first vertical plate portion 74 in the moving direction and formed with an insertion hole 76a into which the first vertical plate portion 74 is inserted, and a second through hole 77a is inserted from one side of the moving direction and screwed into the nut 75 Since the position adjusting bolt 78 is provided, the nut 75 fixed to the first vertical plate portion 71 is moved in the moving direction by turning the horizontal position adjusting bolt 78, whereby the mounting plate portion 71 is moved. Move in the direction. In this way, the mounting plate portion 70 can be moved in the horizontal direction by a simple operation of turning the horizontal position adjusting bolt 78.

(Other embodiments)
In the said embodiment, although the apparatus mounted on the vibration isolator 1 was the generator 120, it is not limited to this, Other apparatuses, especially an apparatus which needs axis alignment may be sufficient.

  Moreover, in the said embodiment, although the vibration isolator 1 was provided with the vertical movement mechanism 6, it is not limited to this, The vertical movement mechanism 6 does not need to be provided.

  In the above embodiment, the reciprocating mechanism 73 moves the mounting plate portion 70 in the horizontal direction by turning the horizontal position adjusting bolt 78. However, the present invention is not limited to this, and the mounting plate portion 70 is moved horizontally. Any mechanism that moves in the direction may be used.

  Moreover, in the said embodiment, although the 1st axial hole 70a of the mounting plate part 70 was a long hole, it is not limited to this, The circular with a larger diameter than the axial member 5 may be sufficient. In this case, the placement plate unit 70 is allowed to move in any horizontal direction. The generator 120 is supported in an anti-vibration manner by the plurality of anti-vibration devices 1, 1,..., And only the predetermined anti-vibration device 1 is operated to move the mounting plate portion 70 in the horizontal direction. When the position is adjusted, the placement plate portions 70 of the other vibration isolators 1, 1,... Can move in the horizontal direction as the generator 120 moves.

  Moreover, in the said embodiment, although the four vertical position adjustment holes 60b, 60b, ... of the cylindrical part 60 were provided, it is not limited to this, You may provide 1-3 or 5 or more.

  In the above embodiment, two small bolts 79 are provided for preventing the horizontal position adjusting bolt 78 from coming off. However, the present invention is not limited to this, and one or three or more small bolts may be provided.

  Moreover, in the said embodiment, all the four vibration isolators which support the generator 120 were the vibration isolator 1, However, It is not limited to this, For example, one is made into the vibration isolator 1, and other three May be a vibration isolator having a vertical position adjusting function.

  The present invention is not limited to the embodiments, and can be implemented in various other forms without departing from the spirit or main features thereof.

  As described above, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is defined by the claims, and is not limited by the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  As described above, the vibration isolator according to the present invention can be applied to applications that need to improve the degree of freedom of position adjustment in the horizontal direction of a vibration isolation object.

1 Vibration isolator 2 Lower support member 3 Upper support member 4 Rubber elastic body (elastic body)
5 Shaft member 6 Vertical movement mechanism 7 Horizontal movement mechanism 70 Placement plate portion 70a First shaft hole 71 Upper rotation plate portion (rotation plate portion)
71a Second shaft hole 73 reciprocating mechanism ( mounting plate portion moving mechanism)
74 First vertical plate portion 74a First through hole 75 Nut 76 Connecting plate portion 77 Second vertical plate portion 77a Second through hole 78 Horizontal position adjusting bolt (bolt)

Claims (5)

An anti-vibration device that provides anti-vibration support for an object to be anti-vibrated against a support surface,
A lower support member fixed to the support surface;
An upper support member disposed on the lower support member;
An elastic body disposed between the upper support member and the lower support member and elastically connecting the two to each other;
A horizontal movement mechanism disposed on the upper support member, on which the anti-vibration object is placed and moves the anti-vibration object in a predetermined direction in the horizontal direction;
A shaft member extending upward from the upper support member and connected to the object for vibration isolation ,
The horizontal movement mechanism is configured to be rotatable around an axis extending in the vertical direction ,
The horizontal movement mechanism is
A first mounting hole through which the shaft member penetrates is formed so that the shaft member can move in the predetermined direction, and a horizontal mounting plate portion on which the anti-vibration object is mounted;
A second plate hole through which the shaft member penetrates, a rotating plate portion on which the mounting plate portion is mounted and rotates the mounting plate portion around an axis of the shaft member;
A vibration isolator having a placement plate portion moving mechanism for moving the placement plate portion in the predetermined direction . In the vibration isolator according to claim 1 Symbol placement,
An anti-vibration device characterized in that the horizontal movement mechanism is attached so as to be rotatable about an axis of the shaft member, and further includes an up-and-down movement mechanism for moving the anti-vibration object in the vertical direction. The vibration isolator according to claim 1 or 2 ,
The mounting plate portion moving mechanism,
A first through hole extending downward from one side of the predetermined direction on the outer peripheral edge of the mounting plate portion and penetrating in the predetermined direction is formed, and a nut is fixed to the peripheral edge of the first through hole. A vertical plate,
A second vertical plate portion formed with a second through-hole facing the first vertical plate portion and penetrating in the predetermined direction on one side of the predetermined direction from the first vertical plate portion;
The rotating plate portion extends in the predetermined direction to the one side from the first vertical plate portion in the predetermined direction and is connected to the second vertical plate portion, and has a width wider than the first vertical plate portion in the predetermined direction. And a connecting plate portion in which an insertion hole into which the first vertical plate portion is inserted is formed,
And a bolt that is inserted from one side of the second through hole in the predetermined direction and screwed into the nut. The vibration isolator according to any one of claims 1 to 3 ,
The first shaft hole is a long hole whose major axis direction coincides with the predetermined direction. The vibration isolator according to any one of claims 1 to 3 ,
The vibration isolator according to claim 1, wherein the first shaft hole is a circular hole having a diameter larger than that of the shaft member.

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