JPH0540072Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a position adjustment device that adjusts the position of a structure such as a steel tower or a pillar with respect to the installation position when the structure is installed.

(Prior Art) As one of the position adjustment devices used for positioning of structures such as steel towers and columns when the structures are installed, there is a device described in Japanese Utility Model Publication No. 59-21198. The position adjustment device includes a base having a flat top surface and a cylindrical member rotatably mounted to the base about a vertical axis. Inside the cylindrical member, a first hydraulic jack that expands and contracts in the vertical direction is slidably disposed on the upper surface of the base.

A box-shaped member having a cubic shape is attached to the side of the cylindrical member so as to protrude to the side of the cylindrical member. The box-shaped member has an opening in a portion corresponding to one surface thereof, and the opening is on the side of the cylindrical member and the flat plate facing the opening is perpendicular to the diameter direction of the cylindrical member. It is fixed to a cylindrical member. A long hole is formed in the flat plate portion, passing through the flat plate portion in the thickness direction thereof and elongated in the horizontal direction. The inside and outside of the cylindrical member are communicated through the box-shaped member and the elongated hole.

A second hydraulic jack is attached to the flat plate member so as to be able to extend and contract in the horizontal direction. Second
The hydraulic jack passes through an elongated hole in the flat plate part so as to press the side of the first hydraulic jack with its piston rod, and is disposed so as to be movable along the elongated hole.

When the second hydraulic jack is extended, its piston rod presses the side of the first hydraulic jack, so the first hydraulic jack slides on the top surface of the base in the direction of extension of the second hydraulic jack. will be moved.

During installation of the structure, the position adjustment device is placed below the structure to push up a predetermined portion of the structure using the first hydraulic jack. In this state, first
The cylindrical member is angularly rotated so that the direction of extension and contraction of the hydraulic jack coincides with the direction in which the structure is to be moved, the first hydraulic jack is then extended, and then the second hydraulic jack is extended by a predetermined amount. to move the first hydraulic jack in a predetermined direction by a predetermined amount. Thereby, the structure is moved by a predetermined amount in the first direction within the horizontal plane while being pushed up by the first hydraulic jack.

For further movement of the structure in a second direction in a horizontal plane and intersecting the first direction, after the first hydraulic jack is retracted, the cylindrical member is angularly rotated and then the second the second hydraulic jack so that the axis of the hydraulic jack coincides with the axis of the first hydraulic jack.
a hydraulic jack is moved relative to the cylindrical member, the first hydraulic jack is then extended, and then the second hydraulic jack is extended.
The hydraulic jack is extended. Thereby, the structure is moved by a predetermined amount in the second direction within the horizontal plane.

(Problem to be solved by the invention) However, in the conventional position adjustment device, the second hydraulic jack only contacts and pushes the side surface of the second hydraulic jack when it is extended. By retracting the second hydraulic jack, the first hydraulic jack cannot be moved or pulled back. Therefore, if the amount of extension of the second hydraulic jack is excessive, in order to correct this, the first hydraulic jack is contracted, the cylindrical member is rotated 180 degrees, and the first hydraulic jack is It must be extended and then the second hydraulic jack must be extended.

Furthermore, in the conventional position adjustment device, when the second hydraulic jack is moved along the elongated hole of the box-shaped member, the relationship between the axes of the first and second hydraulic jacks changes. During extension, the axis of the second hydraulic jack must be exactly aligned with the axis of the first hydraulic jack.

When the second hydraulic jack is extended, if the axes of the first and second hydraulic jacks do not exactly match, the first hydraulic jack will not be moved in a predetermined direction, so the work of rotating the cylindrical member; The operation of expanding and contracting the first and second hydraulic jacks must be repeated multiple times.

An object of the present invention is to provide a position adjustment device that can easily and accurately adjust the horizontal position of a structure.

(Means for Solving the Problems, Actions and Effects of the Invention) The device of the present invention for adjusting the position of structures such as steel towers and columns with respect to their installation positions comprises a base having a flat upper surface and a base having a flat upper surface. a cylindrical member rotatably attached to the base around a vertical axis and having openings at the top and bottom; a first jack that extends and contracts in the vertical direction; a first jack disposed on an upper surface so as to be slidable in a horizontal direction; and a first jack fixed to the cylindrical member;
and a second jack that extends and contracts in the horizontal direction, and one end of which is connected to the first jack.

In use, the positioning device is positioned below a predetermined portion of the structure to push the structure up with the first hydraulic jack. In this state, when the first jack is extended, the structure is pushed up, and when the first jack is then extended or contracted, the structure is released from the first jack.

When the second jack is extended while the first jack is extended, the first jack is pushed by a predetermined amount in a predetermined direction, and when the second jack is expanded or contracted, the first jack is is pulled back a predetermined amount in the opposite direction. As a result, the structure is moved by a predetermined amount in a predetermined direction.

When the cylindrical member is angularly rotated while the first jack is housed, both jacks are rotated by the same amount in the same direction. In this state, when the first jack is extended and then the second jack is extended or contracted, the structure is moved by a predetermined amount in a direction different from the above.

According to the present invention, since the first jack can be pushed and pulled by the second jack, the second jack can be pushed and pulled by the second jack.
Even if the amount of movement of the first jack is excessive when the jack of can.
Furthermore, even if the cylindrical member is rotated angularly, the relative positional relationship between the axes of both jacks remains unchanged.
When expanding and contracting the second jack, there is no need to adjust the relative positional relationship between the axes of both jacks.

Preferably, a cover covering the upper opening of the cylindrical member is attached to the first jack. In this way, it is possible to prevent dirt, etc. from entering the cylindrical member from the upper opening of the cylindrical member, so that the first jack can smoothly move on the upper surface of the base. can be maintained in good condition.

Preferably, a hole is formed in the side of the cylindrical member, and the second jack is passed through the hole. As a result, a part of the second jack is placed outside the cylindrical member, so the diameter of the cylindrical member can be made smaller than when the entire second jack is placed inside the cylindrical member. can.

Preferably, a cover covering the upper opening of the cylindrical member is attached to the first jack, and a second jack covers the hole in the side of the cylindrical part. In this way, it is possible to prevent dirt, etc. from entering the cylindrical member through the upper opening of the cylindrical member and the hole in the cylindrical part, so that the upper surface of the base is not exposed to the first jack. It is always maintained in a state where it can move smoothly.

Furthermore, it is preferable to include a guide plate for guiding movement of the first jack. In this way, since the first jack is guided by the guide plate and slides, even if there is play in the connecting portion of the first and second jacks, the first jack will not shift in its direction of movement. is moved in a predetermined direction.

As the first jack and the second jack, a vacuum piston-cylinder device or a screw jack can be used.

(Example) Referring to FIGS. 1 to 3, position adjustment device 1
0 is a base 12 made of a disk-shaped member arranged in a horizontal state, a cylindrical member 14 arranged to extend in the vertical direction on the base, and the cylindrical member and the base 12. A first jack 16 disposed so as to be movable in the horizontal direction within a space defined by
and a second jack 18 for moving the first jack.

An annular stepped portion 20 is formed on the outer periphery of the base 12 along the outer periphery. Step portion 20 of base 12
The inner upper surface 22 is a circular smooth surface on which the first jack 16 can slide.

The tubular member 14 is made of a cylindrical member, and has a flange portion 24 at its lower end. The tubular member 14 is rotatably fitted around the central axis of the tubular member 14 to a portion that defines the upper surface 22 of the base 12 so that the lower end surface of the tubular member 14 faces the step portion 20 of the base 12.

An annular stop member 2 is provided on the outer periphery of the base 12 to connect the base and the cylindrical member 14 in a relatively rotatable manner.
6 is attached with a plurality of bolts 28. The stop member 26 has an inward flange portion on its upper portion, and the flange portion is engaged with the upper side of the flange portion 24 of the cylindrical member 14 . This results in
The cylindrical member 14 is prevented from separating from the base 12.

A hole 30 is formed in the cylindrical member 14 so as to pass through the cylindrical member 14 in the horizontal direction. Cylindrical member 14
Two U-shaped handles 32 are attached to the outer surface of the handle 30 so as to face each other and extend in a direction perpendicular to the axis of the handle 30 . An oil supply passage 34 for supplying lubricant between the cylindrical member 14 and the stepped portion 20 of the base 12 is provided at the lower end of the cylindrical member 14 . A nipple 36 for refueling is attached to the entrance of the refueling passage 34.

The first jack 16 is composed of a hydraulic piston-cylinder device, and is arranged to extend and contract in the vertical direction. The first jack 16 is
Cylinder 38 arranged to extend in the vertical direction
Equipped with The lower end of the cylinder 38 is closed by a cylinder cover 40 integrally formed therewith. A piston 42 is slidably disposed within the cylinder 38, and a piston rod 44 is connected to the piston 42. cylinder 3
A rod cover 46 is attached to the upper end of the piston rod 8, through which a piston rod 44 can slide.

A thread is formed on the outer peripheral surface of the upper end of the piston rod 44, and a nut 48 is screwed into the thread. A spherical receiving portion is formed at the upper end of the piston rod 44, and a pedestal 50 is attached to the receiving portion by a bolt 52 so as to be rotatable around the axis of the piston rod 44.

An annular washer 54 is attached to the lower surface of the cylinder cover 40 to smooth the movement of the cylinder 38 on the upper surface 22 of the base 12. The cylinder 38 is provided with a hydraulic oil passage 56 for extending and retracting the piston rod 44. Channel 5
6 extends downward from a connection port 58 that is located at the upper end of the cylinder 38 and opens outward, and is connected to the cylinder 38.
It opens inside the lower end of 8.

A groove extending in the circumferential direction of the piston rod is formed on the outer periphery of the piston 42, and an annular sealing member 60 is fitted into the groove. Natsu 48
Four handles 62 made of rod-shaped members extending in the horizontal direction are attached to the sides of the handle.

The first jack 16 connects the connection port 58 to the flow path 5.
6 to the cylinder chamber 38, and is contracted by allowing the hydraulic oil to flow from the cylinder chamber 38 to the outside through the connection port 58.

The second jack is composed of a hydraulic piston-cylinder device and is attached to the cylindrical member 14 so as to be able to extend and contract in the horizontal direction. The second jack 18 includes a cylinder 64 arranged to extend in the horizontal direction. One end of the cylinder 64 has a cylinder cover 6 integrally formed therewith.
6 is closed. A piston 68 is slidably disposed within the cylinder 64, and a piston rod 70 is connected to the piston.
A bush 72 is fitted into the end of the cylinder 64 on the side opposite to the cylinder cover 66.

A groove extending in the circumferential direction is formed on the outer periphery of the piston 68, and an annular sealing material 74 is fitted into the groove. Two annular grooves are formed on the inner peripheral surface of the bush 72, and a sealing material 76 is fitted into each groove. piston rod 70
The main body portion 78 extends through the bushing 72.
, a neck part 80 that integrally follows the main body part, and a head part 82 that integrally follows the neck part.

The second jack 18 is formed in the cylinder cover 66 and can be extended by supplying hydraulic oil from a connection port 84 to a first chamber 86 between the piston 68 and the cylinder cover 66, and
A second chamber 9 between the piston 68 and the bush 72 is connected to a connecting port 88 formed on the side of the cylinder 64.
It can be contracted by supplying hydraulic oil to 0.

The second jack 18 is inserted into the cylinder 64 such that its axis is orthogonal to the axis of the first jack 16.
is attached to the outside of the cylindrical member 14 at the end thereof. The piston rod 70 is connected to the cylindrical member 14
It extends from the outside of the cylindrical member 14 through the hole 30 to the inside of the cylindrical member 14 . The hole 30 in the cylindrical member 14 is closed by a second jack 18.

The tip of the piston rod 70 of the second jack 18 is connected to the first jack 16 by two connecting members 92 and 94. One connecting member 92 has a recess for receiving the head 82 of the piston rod 70, and also has a recess for receiving the head 82 of the piston rod 70.
It is fixed to the cylinder 70 of No. 6. On the other hand, the other connecting member 94 is attached to the connecting member 92 by a plurality of bolts 96 so as to sandwich the head 82 of the piston rod 70 from both sides of the piston rod 70 in the axial direction. .

A guide plate 98 is provided at the upper end of the cylindrical member 14.
are attached by bolts (not shown). The guide plate 98 is made of a disc-shaped member and has an elongated hole 100 extending in the direction of expansion and contraction of the second jack 18 . The first jack 16 is
It can slide horizontally through the elongated hole 100. As a result, even if there is play in the joint between the first and second jacks 16 and 18, the first jack 16 is moved in a predetermined direction by the second jack 18.

A cover 102 is attached to the side of the cylinder 38 of the first jack 16 by a plurality of bolts 104 so as to cover the guide plate 98. This prevents dirt and the like from entering the tubular member 14 from above, and in conjunction with the fact that the hole 30 is covered by the second jack 18 as described above, Intrusion of earth and sand into the cylindrical member 14 is reliably prevented, and the upper surface 22 of the base 12 is maintained in a state in which the first jack 16 can always move smoothly.

As shown in FIG. 3, on the outer surface of the stopper member 26, a plurality of lines 106 for scale are formed at equal angular intervals in the circumferential direction, and a plurality of numbers 108 representing angles are engraved. A reference line 110 is formed on the corresponding outer peripheral surface of the shaped member 14, and a number 11 indicating that the reference line is 0 is formed.
2 is engraved.

As shown in FIGS. 1 and 3, a plurality of graduations 114 are formed at equal angular intervals in the circumferential direction at the upper end of the outer peripheral surface of the rod cover 46.
A reference line 116 is formed on the outer peripheral surface of the nut 48. Preferably, the rod cover 46 is engraved with numbers corresponding to the lines 114.

The relative positional relationship between the first and second jacks 16 and 18 is as shown in FIG. The amount of expansion and the amount of contraction of 18 are set to be the same.

Note that the first and second jacks are pneumatic piston/cylinder devices, screw jacks, etc.
It may be another joke.

When installing a structure such as a steel tower or a column, the position adjustment device 10 is placed below the structure with the first jack 16 being retracted. Then the second
The direction of expansion and contraction of the jack 18 is the first jack 16
The cylindrical member 1 is moved in the direction in which it should be moved.
4 is rotated angularly. As a result, since a lubricant such as grease is injected between the cylindrical member 14 and the stepped portion 20 of the base 12, the cylindrical member 14
can be easily rotated. The amount of rotation of the cylindrical member 14 with respect to the base 12 is determined by the scale line 106.
and the reference line 108.

The first jack 16 is then extended. As a result, the structure is pushed up, and the nut 4
8 is raised together with the piston rod 44. When the structure is raised to a predetermined height position, the nut 4
nut 4 until it comes into contact with the rod cover 46.
8 is rotated relative to the piston rod 44. Thereby, even if the pressure of the hydraulic oil decreases, the structure does not fall, so it is safe and the height position of the structure can be maintained. The lifting height of the structure can be determined from the number of rotations of the nut 48, the scale line 114, and the reference line 116.

The second jack 18 is then extended or retracted. The first jack 16 is the guide cover 98
It is moved in the horizontal direction while being guided by the elongated hole 100. The first jack 16 is the second jack 18
is pushed by being stretched, and pulled back by being stretched or contracted. By repeating such operations, the position of the structure in the first direction within the horizontal plane can be adjusted.

When moving the structure further in a second direction that is in a horizontal plane and intersects with the first direction, after the first jack 16 is expanded and contracted, the second jack 1
8 is contracted or expanded by the same amount as the amount of expansion or contraction described above. This allows the first
A jack 16 is arranged at the center of the upper surface 22 of the base 12. Thereafter, the tubular member 14 is angularly rotated relative to the base 12 so that the axis of the second jack 18 is in the second direction in which the structure should be moved, and then the first jack 16 is extended. , then the second jack 18 is extended or retracted. Thereby, the structure is moved by a predetermined amount in the second direction within the horizontal plane.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the position adjustment device of the present invention, Fig. 2 is a cross-sectional view taken along line 2-2 in Fig. 1, and Fig. 3 is the position adjustment device of Fig. 1. FIG. 10...Position adjustment device, 12...Base, 14...
...Cylindrical member, 16...First jack, 18...
Second jack, 30...hole, 92, 94...connecting member, 98...guide plate, 100...long hole, 102...cover.

Claims (1)

[Claims for Utility Model Registration] (1) A device for adjusting the position of a structure such as a steel tower or pillar with respect to its installation position, which includes a base having a flat top surface and a device perpendicular to the base. a cylindrical member rotatably mounted around an axis and having openings at the top and bottom; and a first jack that extends and contracts in the vertical direction and is horizontal to the top surface of the base within the cylindrical member. a first jack arranged to be slidable in the direction; a second jack fixed to the cylindrical member and operable to expand and contract in the horizontal direction; one end of the jack is connected to the first jack; including,
Position adjustment device. (2) The position adjustment device according to claim (1), further comprising a cover attached to the first jack and covering an upper opening of the cylindrical member. (3) the cylindrical member has a horizontal hole in a side thereof, and one end of the second jack extends through the hole and is connected to the first jack;
The position adjustment device according to claim (1). (4) further including a cover attached to the first jack that covers the upper opening of the cylindrical member, and the second jack covers the hole;
The position adjustment device according to claim (3). (5) The position adjustment device according to claim (1) or (4), further comprising a guide plate that guides sliding of the first jack. (6) The position adjustment device according to claim (1), wherein the first jack and the second jack each comprise a hydraulic piston-cylinder device. (7) Claim wherein the first jack and the second jack each consist of a screw jack.
The position adjustment device described in (1).