JP2011163119A - Device and method for positioning heavy load - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device and a method for positioning a heavy load shortening working hours when positioning the heavy load with respect to a base plate and improving working efficiency. <P>SOLUTION: The device for positioning the heavy load positions the heavy load supported by the base plate through vibration proof rubber (vibration-proof member) 26 with respect to the base plate when the heavy load is mounted to the base plate. The device includes: an X-axis direction positioning mechanism moving the heavy load in an X-axis direction with respect to the base plate; a Y-axis direction/yaw direction positioning mechanism moving the heavy load in a Y-axis direction with respect to the base plate and also rotating the heavy load around the Z-axis of the heavy load; and a fixture 20 restraining the heavy load and vibration proof rubber (vibration-proof member) 26 as one body when the X-axis direction positioning mechanism and/or the Y-axis direction/yaw direction positioning mechanism is moved and the heavy load is moved to the base plate. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  In the present invention, for example, a speed increaser (heavy object) having a weight of about 5 to 25 tons is attached to a nacelle base plate (base plate: base) disposed inside a nacelle constituting a wind turbine for wind power generation ( The present invention relates to a heavy article positioning device and a heavy article positioning method used for positioning a speed increasing device with respect to a nacelle base plate.

  As a wind turbine for wind power generation in which a speed increaser is attached to a nacelle base plate, for example, the one disclosed in FIG. 4 of Patent Document 1 is known.

JP 2005-105917 A

  Now, when installing a gearbox having a weight of about 25 tons on a nacelle base plate arranged inside a nacelle constituting a wind turbine for wind power generation, it is necessary to position the gearbox with respect to the nacelle base plate. . In addition, this positioning must be accurately performed with a misalignment between the rotation axis of the rotor head and the wind turbine rotor blade and the rotation axis of the main shaft of the gear box, for example, with an error of about 0.1 mm. However, since the speed increaser is supported by the nacelle base plate via the vibration isolator rubber, when the speed increaser is positioned with respect to the nacelle base plate, even if the speed increaser is moved, the movement becomes the vibration isolating rubber. The vibration isolating rubber is transmitted and deformed, and the position of the gearbox is partially restored by the elastic force (restoring force) of the vibration isolating rubber. Therefore, it is necessary to move the gearbox many times while observing the relative position between the nacelle base plate and the gearbox, and it takes a lot of time to position the gearbox relative to the nacelle baseplate. There was a problem that efficiency was bad.

  The present invention has been made in view of the above circumstances, and can reduce a work time when positioning a heavy object with respect to a base plate, and can improve a work efficiency and a heavy object positioning device. An object of the present invention is to provide a heavy article positioning method.

The present invention employs the following means in order to solve the above problems.
A heavy article positioning device according to the present invention is a heavy article positioning device that positions a heavy article supported by a base plate via a vibration isolation member with respect to the base plate when the heavy object is attached to the base plate. An X-axis direction positioning mechanism for moving the heavy object in the X-axis direction with respect to the base plate; and the heavy object is moved in the Y-axis direction with respect to the base plate and around the Z-axis of the heavy object. When the Y-axis direction and yaw direction positioning mechanism to be rotated, the X-axis direction positioning mechanism and / or the Y-axis direction and yaw direction positioning mechanism are moved, and the heavy object is moved with respect to the base plate, A fixing jig for restraining the heavy object and the vibration isolating member as an integrated object is provided.

  A heavy article positioning method according to the present invention is a heavy article positioning method for positioning a heavy article supported by a base plate via a vibration isolation member with respect to the base plate when the heavy object is attached to the base plate. An X-axis direction positioning mechanism for moving the heavy object in the X-axis direction with respect to the base plate; and the heavy object is moved in the Y-axis direction with respect to the base plate and around the Z-axis of the heavy object. When the Y-axis direction and yaw direction positioning mechanism to be rotated, the X-axis direction positioning mechanism and / or the Y-axis direction and yaw direction positioning mechanism are moved, and the heavy object is moved with respect to the base plate, This is performed using a fixing jig that restrains the heavy object and the vibration isolating member as an integrated object.

  According to the heavy article positioning device or the heavy article positioning method according to the present invention, when positioning the heavy article with respect to the base plate, a fixing jig for restraining the heavy article and the vibration isolating member as an integrated object is attached in advance. The heavy object and the vibration isolating member are moved as an integrated object, and even if the heavy object is moved, the movement is not transmitted to the vibration isolating member and the vibration isolating member is not deformed. The position of the heavy object is not partially restored by (restoring force). This eliminates the need to move the heavy load over and over while observing the relative position of the base plate and the heavy load, shortens the work time when positioning the heavy load relative to the base plate, and improves work efficiency. Can be improved.

  In the heavy article positioning device, the heavy article is used as a speed increaser for a wind turbine for wind power generation, and is connected via a gear coupling to a gear attached to a main shaft on a rotor head side and attached to a main axis on a speed increaser side. It is more preferable that at least one of a misalignment measuring device for measuring a misalignment with a gear and an interplane distance measuring device for measuring an interplane distance is provided.

  In the heavy article positioning method, the heavy article is used as a speed increasing device for a wind turbine for wind power generation, and is connected to a main shaft on the rotor head side and connected to a main shaft on the speed increasing device side, which are connected via a gear coupling. More preferably, it is performed by using at least one of a misalignment measuring device for measuring misalignment with a gear and an interplane distance measuring device for measuring a distance between surfaces.

According to these heavy article positioning devices or heavy article positioning methods, for example, when positioning the gearbox with respect to the nacelle base plate, the gear attached to the main shaft on the rotor head side and the gear attached to the main shaft on the gearbox side And at least a misalignment measuring instrument (for example, a contact sensor) that measures the misalignment between the gears, and an interplane distance measuring instrument (for example, a contact sensor) that measures the distance between the gears. Any one of them is attached via a fixing jig, and the X-axis direction positioning mechanism, the Y-axis direction and the yaw direction positioning mechanism are moved based on the measurement results measured by these measuring instruments.
In this way, by feeding back the measurement result measured by the measuring instrument and moving the X-axis direction positioning mechanism, the Y-axis direction and the yaw direction positioning mechanism, the speed increaser can be more accurately set against the nacelle base plate. Can be positioned.

  According to the heavy article positioning device or the heavy article positioning method according to the present invention, it is possible to shorten the work time when positioning the heavy article with respect to the base plate, and to improve the work efficiency. Play.

It is a side view which shows the windmill for wind power generation provided with the nacelle baseplate and the gearbox which were positioned by the heavy article positioning device and heavy article positioning method which concern on one Embodiment of this invention. It is a left view of the speed up gear installed on the nacelle baseplate. It is the top view which looked at the rotor head and the gearbox from the upper part. (A) is a top view of a nacelle baseplate, (b) is a left view of a nacelle baseplate. It is sectional drawing to which the principal part of the gearbox shown in FIG. 2 was expanded. It is a figure for demonstrating the heavy article positioning device which concerns on one Embodiment of this invention, Comprising: It is the figure which looked at the nacelle baseplate and the gearbox from back. It is a figure for demonstrating the heavy article positioning device which concerns on one Embodiment of this invention, Comprising: It is the figure which looked at the nacelle baseplate and the gearbox from the left side. It is a figure for demonstrating the heavy article positioning device and heavy article positioning method which concern on other embodiment of this invention, Comprising: It is the figure which expanded the principal part of FIG. It is a figure for demonstrating the heavy article positioning device and heavy article positioning method which concern on another embodiment of this invention, Comprising: It is the figure which looked at the nacelle baseplate and the gearbox from back.

Hereinafter, a heavy article positioning device and a heavy article positioning method according to an embodiment of the present invention will be described with reference to FIGS.
The heavy article positioning device 50 according to the present embodiment has, for example, a weight of about 5 to 5 on a nacelle base plate (base plate: base) 7 (see FIG. 2) disposed inside the nacelle 3 (see FIG. 1). It is used to position the speed-up gear 8 with respect to the nacelle base plate 7 when a 50-ton speed-up gear (heavy object) 8 (see FIG. 2) is attached (fixed).

As shown in FIG. 1, a wind turbine 1 for wind power generation includes a column (also referred to as “tower”) 2 standing on a foundation B, a nacelle 3 installed at the upper end of the column 2, and a substantially horizontal axis. A rotor head (hub) 4 provided on the nacelle 3 so as to be rotatable around is provided.
A plurality of (for example, three) wind turbine rotor blades 5 are attached to the rotor head 4 in a radial pattern around the rotation axis. As a result, the force of the wind striking the wind turbine rotor blade 5 from the direction of the rotation axis of the rotor head 4 is converted into power for rotating the rotor head 4 around the rotation axis.

The support column 2 is configured by connecting a plurality of (for example, three) units (not shown) vertically.
Moreover, the nacelle 3 is installed on the unit provided in the uppermost part among the units constituting the column 2, and covers the nacelle base plate 7 attached to the upper end of the column 2 and the nacelle base plate 7 from above. And a cover 6.

  As shown in FIG. 2 or FIG. 3, a (first) gear 10 is attached to the tip (flange) 9 a of the main shaft 9 extending from the speed increaser 8 toward the rotor head 4, and the rotor head 4 A gear portion (a second gear) 11 having the same number of teeth as that of the gear 10 is attached to the root portion (the end portion facing the tip portion 9a of the main shaft 9). The gear 10 and the gear 11 are gear cups. They are connected via a ring 12. When the gear 11 rotates together with the rotor head 4, the rotation of the gear 11 is transmitted to the gear 10 and the main shaft 9 via the gear coupling 12.

  The speed increaser 8 includes a front (front surface) 13a and a back surface (rear surface) 13b that are parallel to a plane including an axis orthogonal to the longitudinal axis (rotation axis) of the main shaft 9, and a torque having a predetermined plate thickness. The arm 13 is provided so as to project outward from the entire outer peripheral surface of the casing 8a. On both side portions of the lower end portion of the torque arm 13, there are provided one round hole 14 (see FIG. 5) having an axis parallel to the longitudinal axis of the main shaft 9 and penetrating in the plate thickness direction. . Each of the round holes 14 extends from the front surface 13a so as to protrude outward (the side of the rotor head 4) and extends from the rear surface 13b so as to protrude outward (the side opposite to the rotor head 4). A columnar pin 15 is press-fitted and fixed.

  As shown in FIGS. 3 and 5, each of the pins 15 is disposed on the front surface 13a side, and the (first) anti-vibration bracket 16 that receives the pins 15 projecting outward from the front surface 13a and the rear surface 13b. It is arranged on the side and supported by a (second) anti-vibration bracket 17 that receives a pin 15 projecting outward from the back surface 13b. The anti-vibration brackets 16 and 17 are fixed on a pedestal 18 (see FIGS. 4 and 5) provided at the center in the front-rear direction of the nacelle base plate 7 via a fastening member such as a bolt 19. The inner peripheral surfaces 16a and 17a of the vibration-proof brackets 16 and 17 having a cylindrical shape are respectively provided with recesses 22 for receiving a cylindrical portion 21 of the fixing jig 20 described later.

As shown in FIGS. 5 and 6, when the cylindrical portion 21 of the fixing jig 20 is inserted (set) into the recess 22, the inner peripheral surfaces 16 a and 17 a of the vibration isolation brackets 16 and 17, and the cylinder The depth of the recess 22 is set to be the same as the thickness of the cylindrical portion 21 so that the inner peripheral surface 21a of the portion 21 forms the same plane.
Also, reference numerals 23 and 24 in FIG. 4 are bolt holes through which the bolts 19 pass, holes into which the pins 25 shown in FIG.

  Anti-vibration rubber (anti-vibration member) 26 is provided between the pin 15 protruding outward from the front surface 13a and the anti-vibration bracket 16 and between the pin 15 protruding outward from the rear surface 13b and the anti-vibration bracket 17. Are provided. The anti-vibration rubber 26 has the same inner diameter as the outer diameter formed by the outer peripheral surface 15a of the pin 15, and has a cylindrical shape having an outer diameter smaller than the inner diameter formed by the inner peripheral surfaces 16a and 17a of the anti-vibration brackets 16 and 17. The inner peripheral surface 26 a of the vibration isolating rubber 26 is in close contact with the outer peripheral surface 15 a of the pin 15, and the outer peripheral surface 26 b of the vibration isolating rubber 26 and the inner peripheral surfaces 16 a of the anti-vibration brackets 16 and 17. A gap of about 1 mm to 20 mm is formed between 17a.

  Now, when positioning the gear box 8 (see FIG. 2) with respect to the nacelle base plate 7 (see FIG. 2), as shown in FIG. The fixing jig 20 which is one component of the heavy article positioning device 50 is attached in advance. The fixing jig 20 includes the above-described cylindrical portion 21 and a disc portion 27 that closes an opening that opens to one side of the cylindrical portion 21. The cylindrical portion 21 and the disc portion 27 are integrally formed, or the cylindrical portion 21 is fixed to the disc portion 27. Further, the disk portion 27 is fixed to the corresponding anti-vibration brackets 16 and 17 via a fastening member such as a bolt 28 and is fixed to the pin 15 via a fastening member such as a male screw 29. That is, when positioning the gearbox 8 with respect to the nacelle base plate 7, the torque arm 13, the pin 15, the disk portion 21, the cylindrical portion 27, and the vibration-proof brackets 16 and 17 are moved as a single body. . Therefore, for example, when the torque arm 13 is moved, the pin 15, the disk portion 21, the cylindrical portion 27, and the vibration isolation brackets 16 and 17 move together with the torque arm 13, and when the vibration isolation brackets 16 and 17 are moved, the torque arm 13, The pin 15, the disc part 21, and the cylindrical part 27 move together with the vibration isolation brackets 16 and 17. At this time, since relative movement (displacement) does not occur between the pin 15 and the vibration isolation brackets 16, 17, the vibration isolation rubber 26 also includes the torque arm 13, the pin 15, the disk portion 21, the cylindrical portion 27, It will be moved together with the anti-vibration brackets 16 and 17 as one body.

Next, components of the heavy article positioning device 50 according to this embodiment other than the fixing jig 20 will be described with reference to FIGS. 6 and 7.
The heavy article positioning device 50 includes an X-axis direction positioning mechanism 51 that moves the speed increaser 8 in the X-axis direction (left-right direction: left-right direction in FIG. 3) with respect to the nacelle base plate 7, and the nacelle base plate 7 (FIG. 2). The speed increaser 8 (refer to FIG. 2) is moved in the Y-axis direction (front-rear direction: vertical direction in FIG. 3) with respect to the Z-axis (the X axis and the Y axis are included). And a Y-axis direction and yaw direction positioning mechanism 52 that rotates about a vertical axis).

  As shown in FIG. 6, the X-axis direction positioning mechanism 51 is attached to the L-shaped angle member 54 and an L-shaped angle member 54 fixed to the base 18 of the nacelle base plate 7 via a fastening member such as a bolt 53. And an actuator 55 for moving (pushing forward) the vibration-proof bracket 16 or the vibration-proof bracket 17. One actuator is provided for each of the vibration-proof brackets 16 and 17.

  The L-shaped angle member 54 extends laterally along the lower surface 18 a of the pedestal 18 and extends upward from the inner end of the lateral member 56 along the inner side surface 18 b of the pedestal 18. And a vertical member 57. The horizontal member 56 is provided with a bolt hole 58 through which the bolt 53 passes, and the vertical member 57 is provided with a hole 60 through which a shaft portion 59 provided at the tip of the actuator 55 passes. In the hole 60, a female screw portion (not shown) that is screwed with a male screw portion (not shown) provided on the outer peripheral surface of the shaft portion 59 is provided.

  The actuator 55 includes a motor 61 configured to be able to rotate forward and reverse, the above-described shaft portion 59, and a coupling 62 that connects the rotation shaft 61 a of the motor 61 and the root portion of the shaft portion 59. The motor 61 is provided with two flanges 63 projecting from the outer circumferential surface along the circumferential direction. Each flange 63 is attached to the vertical member 57 and is connected to the inner side of the nacelle base plate 7 (with the base 18 and A hole (not shown) is provided through which the slide guide 64 extending toward the opposite side passes. Then, when the rotation shaft 61 a of the motor 61 is rotated, the shaft portion 59 advances and retreats (in / out) from the hole 60, and the motor 61 moves along with the shaft portion 59 along the slide guide 64 (guided). It has become.

  When the speed increaser 8 is moved in the right direction with respect to the nacelle base plate 7, the shaft portions 59 of the two X-axis direction positioning mechanisms 51 located on the right side come out of the hole 60 by the same length, The corresponding vibration-proof bracket 16 or the vibration-proof bracket 17 is moved. At this time, the shaft portions 59 of the two X-axis direction positioning mechanisms 51 located on the left side are returned from the holes 60 by the same length as the shaft portions 59 of the two X-axis direction positioning mechanisms 51 located on the right side, so that smooth Do not disturb the positioning operation. When the speed increaser 8 is moved in the left direction with respect to the nacelle base plate 7, the shaft portions 59 of the two X-axis direction positioning mechanisms 51 located on the left side come out of the hole 60 by the same length, The corresponding vibration-proof bracket 16 or the vibration-proof bracket 17 is moved. At this time, the shaft portions 59 of the two X-axis direction positioning mechanisms 51 positioned on the right side are returned from the holes 60 by the same length as the shaft portions 59 of the two X-axis direction positioning mechanisms 51 positioned on the left side, and smooth. Do not disturb the positioning operation.

  As shown in FIG. 7, the Y-axis direction and yaw direction positioning mechanism 52 includes an L-shaped angle member 65 fixed to the base 18 of the nacelle base plate 7 via a fastening member (not shown) such as a bolt, An actuator 66 is attached to the L-shaped angle member 65 to move (push or pull) the vicinity of both sides of the lower end of the torque arm 13, that is, the vicinity of the vibration isolation bracket 16 and the vibration isolation bracket 17. One is provided for each side portion of the lower end portion of the torque arm 13.

Similarly to the L-shaped angle member 54 described above, the L-shaped angle member 65 includes a lateral member (not shown) that extends in the lateral direction along the lower surface 18a of the pedestal 18 and the pedestal 18 from the inner end of the lateral member. And a vertical member 67 extending upward along the inner side surface (not shown). The horizontal member is provided with a bolt hole (not shown) through which a fastening member such as a bolt passes, and the vertical member 67 has a hole 69 through which a shaft portion 68 provided at the tip of the actuator 66 passes. Is provided. In the hole 69, a female screw portion (not shown) that is screwed with a male screw portion (not shown) provided on the outer peripheral surface of the shaft portion 68 is provided.
The hole 69 has a central axis perpendicular to the central axis of the hole 60 in the XY plane including the central axis of the hole 60 described above. That is, the hole 60 described above is provided along the X-axis direction, whereas the hole 69 is provided along the Y-axis direction.

  The actuator 66 includes a motor 70 configured to be able to rotate forward and reverse, the above-described shaft portion 68, and a coupling 71 that connects the rotation shaft 70 a of the motor 70 and the root portion of the shaft portion 68. The motor 70 is provided with two flanges 72 protruding from the outer peripheral surface along the circumferential direction. Each flange 72 is attached to a vertical member 67 and is connected to the rear side of the nacelle base plate 7 (torque arm). 13 is provided with a hole (not shown) through which the slide guide 73 extending toward the side opposite to the side 13 penetrates. Further, a member 74 is provided at the tip of the shaft portion 68 so as to receive the tip of the shaft portion 68 rotatably and not transmit the rotation of the rotating shaft 70a but transmit only the axial movement of the shaft portion 68. Yes. The member 74 is a U-shaped member 75 having a U-shaped cross-sectional view formed so as to sandwich the front surface 13a and the back surface 13b of the torque arm 13 so as to face the back surface 13b and to extend along the back surface 13b. It is fixed to the extending (first) longitudinal member 76. Bolt holes (not shown) through which the bolts 78 pass are provided in the (second) vertical member 77 facing the back surface 13a and extending in the vertical direction along the back surface 13a. Is provided with a female screw portion (not shown) that is screwed with a male screw portion (not shown) provided on the outer peripheral surface of the bolt 78. Then, by tightening the bolt 78 with respect to the bolt hole, the torque arm 13 is sandwiched between the front end surface of the bolt 78 and the inner surface of the vertical member 76 so as to be sandwiched. . Further, when the rotating shaft 70 a of the motor 70 is rotated, the shaft portion 68 advances and retreats (in / out) from the hole 69, and the motor 70 moves with the shaft portion 68 along (guided) along the slide guide 73. It has become.

  When the speed increaser 8 is moved in the forward direction with respect to the nacelle base plate 7, the shaft portions 68 of both the Y-axis direction and yaw-direction positioning mechanisms 52 come out of the holes 69 by the same length, so that The torque arm 13 to be moved is moved (pushed forward). When the speed increaser 8 is moved backward with respect to the nacelle base plate 7, the shaft portions 68 of both the Y-axis direction and yaw direction positioning mechanisms 52 are returned toward the hole 69 by the same length. The corresponding torque arm 13 is moved (pulled).

On the other hand, when the speed increaser 8 is moved (turned) counterclockwise around the Z-axis with respect to the nacelle base plate 7 as viewed from above, the Y-axis direction and yaw direction positioning mechanism 52 located on the right side is positioned. The shaft portion 68 of the Y-axis direction and the yaw-direction positioning mechanism 52 is located on the right side in the Y-axis direction and the Y-axis direction and the yaw direction positioning mechanism 52 are moved. The length of the shaft portion 68 coming out of the hole 69 of the yaw direction positioning mechanism 52 is returned to the hole 69, and the corresponding torque arm 13 is moved (pulled). Further, when the speed increaser 8 is moved (rotated) in the clockwise direction when viewed from above with respect to the nacelle base plate 7 around the Z axis, the Y axis direction and yaw direction positioning mechanism 52 located on the left side The shaft portion 68 exits from the hole 69 and moves (pushes) the corresponding torque arm 13, and the shaft portion 68 of the Y-axis direction and yaw direction positioning mechanism 52 located on the right side is located on the left side in the Y-axis direction and yaw direction. The length of the shaft portion 68 coming out of the hole 69 of the direction positioning mechanism 52 is returned to the hole 69 and the corresponding torque arm 13 is moved (pulled).
Reference numeral 79 in FIG. 6 and FIG. 7 denotes a hydraulic jack that moves the speed increasing device 8 in the Z-axis direction (vertical direction: a direction perpendicular to the paper surface in FIG. 3) with respect to the nacelle base plate 7.
In addition, each fixing jig 20 is removed from the corresponding anti-vibration brackets 16 and 17 after the positioning of the gearbox 8 with respect to the nacelle base plate 7 is completed.

  According to the heavy article positioning device 50 and the heavy article positioning method according to the present embodiment, when positioning the speed increaser 8 with respect to the nacelle base plate 7, the fixing jig 20 is attached to the vibration isolation brackets 16 and 17, respectively. The torque arm 13, the pin 15, the disk portion 21, the cylindrical portion 27, and the vibration isolation brackets 16, 17 are moved as a single body, and even if the speed increaser 8 is moved, the movement thereof is the vibration isolation rubber. The vibration isolator 26 is not deformed by being transmitted to 26, and the speed-up gear 8 is not returned to the original position by the elastic force (restoring force) of the anti-vibration rubber 26. As a result, it is not necessary to move the speed increaser 8 many times while observing the relative position between the nacelle base plate 7 and the speed increaser 8, and the work time for positioning the speed increaser 8 relative to the nacelle base plate 7 can be reduced. It can be shortened and work efficiency can be improved.

When positioning the gearbox 8 with respect to the nacelle base plate 7, as shown in FIG. 8, the gap between the gear 10 and the gear 11 is measured between the gear 10 and the gear 11. A misalignment measuring instrument (for example, a contact sensor) 81 and an inter-surface distance measuring instrument (for example, a contact sensor) 82 for measuring the distance between the surfaces of the gear 10 and the gear 11 are attached via a fixing jig 83. More preferably, the X-axis direction positioning mechanism 51, the Y-axis direction and the yaw direction positioning mechanism 52 are moved based on the measurement results measured by these measuring instruments 81 and 82.
Thus, by feeding back the measurement results measured by the measuring instruments 81 and 82 and moving the X-axis direction positioning mechanism 51, the Y-axis direction and the yaw direction positioning mechanism 52, the nacelle base plate 7 is moved. The speed increaser 8 can be positioned more accurately.

The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the gist of the present invention.
For example, in the above-described embodiment, the X-axis direction positioning mechanism 51 is attached at a position where the anti-vibration bracket 16 or the anti-vibration bracket 17 can be moved (pushed forward). However, as shown in FIG. You may make it attach to the position which can move (push forward) the both side surfaces 92 of the protrusion part 91 which protrudes below from the bottom face of the arm 13. As shown in FIG.

7 Nacelle base plate (base plate)
8 gearbox (heavy)
20 Fixing jig 26 Anti-vibration rubber (anti-vibration member)
50 Heavy object positioning device 51 X-axis direction positioning mechanism 52 Y-axis direction and yaw direction positioning mechanism

Claims (4)

When attaching a heavy object supported by a base plate via a vibration isolation member to the base plate, a heavy article positioning device that positions the heavy object with respect to the base plate,
An X-axis direction positioning mechanism for moving the heavy object in the X-axis direction with respect to the base plate;
A Y-axis direction and yaw direction positioning mechanism for moving the heavy object in the Y-axis direction relative to the base plate and rotating the heavy object around the Z-axis;
When the X-axis direction positioning mechanism and / or the Y-axis direction and yaw direction positioning mechanism are moved, and the heavy object is moved relative to the base plate, the heavy object and the vibration isolating member are integrated. A heavy article positioning apparatus comprising a fixing jig for restraining. The heavy object is a wind turbine speed increaser for wind power generation,
A misalignment measuring device for measuring misalignment between the gear attached to the main shaft on the rotor head side and the gear attached to the main shaft on the gearbox side, which are connected via a gear coupling, or a surface for measuring the distance between the surfaces. The heavy article positioning device according to claim 1, further comprising at least one of an inter-distance measuring device. A heavy article positioning method for positioning a heavy object supported by a base plate via a vibration isolation member with respect to the base plate when the heavy object is attached to the base plate,
An X-axis direction positioning mechanism for moving the heavy object in the X-axis direction with respect to the base plate;
A Y-axis direction and yaw direction positioning mechanism for moving the heavy object in the Y-axis direction relative to the base plate and rotating the heavy object around the Z-axis;
When the X-axis direction positioning mechanism and / or the Y-axis direction and yaw direction positioning mechanism are moved, and the heavy object is moved relative to the base plate, the heavy object and the vibration isolating member are integrated. A heavy article positioning method characterized by being performed using a fixing jig for restraining. The heavy object is a wind turbine speed increaser for wind power generation,
A misalignment measuring device for measuring misalignment between the gear attached to the main shaft on the rotor head side and the gear attached to the main shaft on the gearbox side, which are connected via a gear coupling, or a surface for measuring the distance between the surfaces. The heavy article positioning method according to claim 3, wherein the heavy article positioning method is performed using at least one of the inter-distance measuring devices.

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