JP5577911B2 - Inner cylinder insertion device to outer cylinder - Google Patents

Description

  The present invention relates to an inner cylinder inserting device into an outer cylinder.

  When manufacturing the structure to be incorporated in a plant or the like, when placing the inner cylinder with both ends opened to the inside of the outer cylinder with both ends open, the outer cylinder is in a state where its axis is vertical, The inner cylinder is lifted by the lifting means, is aligned with the axis of the outer cylinder in accordance with the axis of the outer cylinder, and the inner cylinder is lowered and inserted into the outer cylinder. Thereafter, the inner cylinder and the outer cylinder are welded to each other via a spacer, or are fastened by a mechanical element such as a bolt to form a double structure cylinder.

  In addition, a method of inserting a cylindrical workpiece (corresponding to the above-described inner cylinder) extending in the horizontal direction into a tank (corresponding to the above-described outer cylinder) that is horizontally disposed by a forklift truck has been proposed (for example, Patent Document 1).

JP-A-1-281298

  However, in the method of forming the double-structured cylinder described in the previous stage of the background art, the inner cylinder lifted by the lifting means swings when moving right above the outer cylinder, so this swinging does not subside. When the inner cylinder is lowered in the state, the outer cylinder and the inner cylinder come into contact with each other. Furthermore, it is difficult to finely adjust the position of the inner cylinder lifted by the lifting means by the operator's driving operation.

  Moreover, when the inner cylinder is inserted into the outer cylinder, it is necessary to manage the distance between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder so as to match the design value. In the insertion method, the positional relationship between the outer cylinder and the inner cylinder can be confirmed only from above, and therefore it is not easy to manage the interval.

  In the thing of patent document 1 described in the back | latter stage of background art, unless operation operation of a forklift truck is not performed carefully, a cylindrical workpiece will shake and the front-end | tip outer peripheral surface of a cylindrical workpiece will contact the tank internal peripheral surface. Moreover, it is difficult to move the inner cylinder that is large enough for an operator to enter and exit with a forklift truck.

  The present invention has been made in view of the above-described circumstances, and is directed to an outer cylinder that can prevent contact between the outer cylinder and the inner cylinder and can appropriately manage the interval between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder. An object is to provide an inner cylinder insertion device.

In order to achieve the above object, an inner cylinder insertion device for an outer cylinder according to claim 1,
A stand for supporting the outer cylinder so that its axis is in a horizontal direction;
An auxiliary insertion carriage on which an inner cylinder extending in the same direction as the outer cylinder is placed and movable in a direction approaching and separating from the frame and a direction intersecting the axis of the inner cylinder;
An insertion carriage that is fixedly attached to the end of the inner cylinder opposite to the gantry via a position adjusting jig and is movable in a direction approaching and separating from the gantry;
And a guide roller that is detachably attached to an end of the inner cylinder on the gantry side and can roll on the inner peripheral surface of the outer cylinder.

The inner cylinder insertion device into the outer cylinder according to claim 2 is the inner cylinder insertion device into the outer cylinder according to claim 1,
The gantry has two outer cylinder bases arranged side by side in the axial direction of the outer cylinder,
Each outer cylinder base is provided with two outer cylinder turning rollers that can contact the outer peripheral surface of the outer cylinder,
When the outer cylinder turning roller is rotated, the circumferential position of the outer cylinder can be adjusted.

The inner cylinder insertion device into the outer cylinder according to claim 3 is the inner cylinder insertion device into the outer cylinder according to any one of claims 1 and 2,
The auxiliary insertion trolley has a first trolley body that can move in the direction of approaching and moving away from the gantry,
A retracting wheel for moving the auxiliary insertion cart in a direction intersecting the axis of the inner cylinder is disposed on the first cart body, the tread surface of the retracting wheel being positioned below the tread surface of the traveling wheel. It is provided so as to be capable of ascending and descending between the traverse position and the storage position located above the tread surface of the traveling wheel,
When the evacuation wheel is lowered to the traversing position, the tread surface of the evacuation wheel comes into contact with the road surface, the traveling wheel is separated from the road surface, and the first trolley body constituting the auxiliary insertion trolley is retracted sideways. Can do.

The inner cylinder insertion device into the outer cylinder according to claim 4 is the inner cylinder insertion device into the outer cylinder according to claim 3,
Auxiliary insertion cart
Two guide members are arranged on the first carriage main body so as to be vertically movable and arranged in the axial direction of the inner cylinder, and two inner cylinder turning rollers that can come into contact with the outer peripheral surface of the inner cylinder are provided on each guide member. It is provided so that it can move horizontally in the direction intersecting the axis of the cylinder,
By rotating the inner cylinder turning roller, the circumferential position of the inner cylinder can be adjusted,
When the inner cylinder turning roller is horizontally moved in a direction intersecting the axis of the inner cylinder and the vertical position of the guide member is adjusted, the axis of the inner cylinder can be aligned with the axis of the outer cylinder.

The inner cylinder insertion device into the outer cylinder according to claim 5 is the inner cylinder insertion device into the outer cylinder according to any one of claims 1 to 4,
The insertion carriage has a second carriage main body that can move in a direction approaching and separating from the gantry, and a position adjusting jig that can be coaxially mounted on the end opposite to the gantry of the inner cylinder,
A turntable equipped with a rotary shaft that extends in the axial direction of the inner cylinder and can be connected to the position adjusting jig can be moved up and down to the second carriage body and in a direction intersecting the axis of the inner cylinder. Provided in
When the turntable is rotated by connecting the rotation shaft to the position adjusting jig attached to the inner cylinder, the circumferential position of the inner cylinder can be adjusted.

  According to the inner cylinder inserting device into the outer cylinder of the present invention, the following excellent effects can be obtained.

  (1) The end of the inner cylinder placed on the auxiliary insertion carriage is held by the insertion carriage, and the auxiliary insertion carriage is moved in a direction intersecting the axis of the inner cylinder, and then the insertion carriage is moved to the gantry side. When the inner cylinder is inserted into the outer cylinder that is moved and supported by the frame, the guide roller mounted on the inner cylinder rolls on the inner peripheral surface of the outer cylinder, thereby preventing contact between the outer cylinder and the inner cylinder. it can.

  (2) Since the outer cylinder and the inner cylinder are supported sideways, the distance between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder can be confirmed from both end portions of the outer cylinder and the inner cylinder.

(A) is a side view showing a state of starting to insert an inner cylinder into an outer cylinder in an example of an inner cylinder inserting apparatus into an outer cylinder of the present invention, and (B) is an example of an inner cylinder inserting apparatus into an outer cylinder of the present invention. FIG. (A) is a front view of the position adjusting jig in an example of the inner cylinder insertion device into the outer cylinder of the present invention, and (B) is a state in which a part of the inner cylinder is inserted into the outer cylinder by moving the auxiliary insertion carriage. FIG. (A) is a side view showing a state in which the position adjusting jig is mounted on the inner cylinder and the insertion carriage is connected to the position adjusting jig, and (B) is for moving the inner cylinder in the axial extension direction of the outer cylinder. It is a front view which shows the state which mounted | wore the guide roller. (A) is a side view showing a state in which the insertion carriage is moved and the entire inner cylinder is inserted into the outer cylinder, and (B) is a state in which a guide roller for movement in the circumferential direction of the outer cylinder is attached to the inner cylinder. FIG. It is a side view of an auxiliary insertion cart. It is a longitudinal cross-sectional view which shows the connection structure of the jig | tool for position adjustment, and the turntable which belongs to an insertion trolley | bogie.

    Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1-6 is an example of the inner cylinder insertion apparatus to the outer cylinder of this invention, The base 3 which supports the outer cylinder 1 which the both ends opened so that the axis line Z1 may become sideways, The said outer cylinder 1, An auxiliary insertion carriage 4 in which the inner cylinder 2 extending in the same direction and opened at both ends is placed so that the axis Z2 thereof is in a horizontal direction, and the side opposite to the gantry 3 before the inner cylinder 2 is inserted into the outer cylinder 1 An insertion carriage 5 that holds the end of the inner cylinder 2 positioned at the position and is movable in a direction approaching and moving away from the gantry 3, and is attachable to and detachable from the lower edge of the end of the inner cylinder 2 on the gantry 3 side 1 and guide rollers 6 and 7 capable of rolling on the inner bottom portion.

  The gantry 3 has two outer cylinder bases 8 arranged side by side in the direction of the axis Z1 of the outer cylinder 1, and in the direction perpendicular to the axis Z1 of the outer cylinder 1 in plan view, on the upper part of each outer cylinder base 8. An extending guide member 9 is provided horizontally. Each of the guide members 9 is provided with two outer cylinder turning rollers 11 that are pivotally supported by the bracket 10 and can contact the outer peripheral surface of the outer cylinder 1, and are movably attached along the guide members 9. The outer cylinder turning roller 11 supports the outer cylinder 1.

  The two brackets 10 attached to each guide member 9 are configured so as to be close to and away from each other by a known moving mechanism including a ball screw, a speed reducer, and an electric motor, and are used for an outer cylinder pivotally supported by the bracket 10. The axial center distance of the turning roller 11 can be adjusted. The outer cylinder turning roller 11 belonging to one guide member 9 is configured to be rotatable by a known drive mechanism including a speed reducer and an electric motor, and the circumferential position of the outer cylinder 1 supported by the outer cylinder turning roller 11. (Circumferential phase) can be adjusted.

  The auxiliary insertion carriage 4 has a first carriage main body 13 equipped with traveling wheels 12 for moving in a direction approaching and moving away from the gantry 3 at a total of four locations on one end left and right and on the rear end left and right. The traveling wheel 12 at one end of the first cart body 13 is configured to be rotatable by a known drive mechanism including a speed reducer and an electric motor. Work rails 14 are laid along the axis Z2 of the inner cylinder 2 on the floor of the building, and the traveling wheels 12 of the first carriage body 13 roll on the work rails 14. It has become.

  Two brackets 16, which are movable in the vertical direction by the cylinder 15, are provided on the left and right of the intermediate portion inside the first cart body 13, and the auxiliary insertion cart 4 is seen in plan view in the bracket 16. A retraction wheel 17 for moving in a direction orthogonal to the axis Z2 of the cylinder 2 is pivotally supported. The retraction wheel 17 is configured to be rotatable by a known drive mechanism including a speed reducer and an electric motor.

  When the bracket 16 is pushed down by the cylinder 15, the retraction wheel 17 enters a traverse state in which the tread surface is located below the tread surface of the traveling wheel 12, and when the bracket 16 is pulled up by the cylinder 15, the retraction wheel 17 The retracted state is such that the tread surface is located above the tread surface of the traveling wheel 12. A retraction rail 18 extending in a direction orthogonal to the work rail 14 is laid on the floor of the building, and the retraction wheels 17 in a traversing state roll on the retraction rail 18. ing.

  Two inner cylinder bases 19 are installed on the upper part of the first bogie main body 13 so as to be aligned in the direction of the axis Z2 of the inner cylinder 2. A guide member 23 extending in a direction perpendicular to the axis Z2 of the inner cylinder 2 in a plan view is mounted so as to be movable in the horizontal and vertical directions through an elevating mechanism 22 composed of the vertical guide member 21. Two inner cylinder turning rollers 25 that are pivotally supported by the bracket 24 and that can come into contact with the outer peripheral surface of the inner cylinder 2 are attached to each of the guide members 23 movably along the guide member 23. An inner cylinder turning roller 25 supports the inner cylinder 2.

  The two brackets 24 attached to each guide member 23 are configured to be movable in a direction perpendicular to the axis Z2 of the inner cylinder 2 by a known moving mechanism including a ball screw, a speed reducer, and an electric motor. The position of the inner cylinder turning roller 25 pivotally supported by the bracket 24 in the horizontal direction perpendicular to the axis Z2 can be adjusted. The inner cylinder turning roller 25 belonging to one guide member 23 is configured to be rotatable by a known drive mechanism including a reduction gear and an electric motor, and is positioned in the circumferential direction of the inner cylinder 2 supported by the inner cylinder turning roller 25. (Circumferential phase) can be adjusted.

  That is, the guide member 23 is displaced vertically for each inner cylinder base 19, and the bracket 24 pivotally supporting the inner cylinder turning roller 25 is orthogonal to the axis Z 2 of the inner cylinder 2 for each guide member 23. The axis Z2 of the inner cylinder 2 can be positioned coaxially with the axis Z1 of the outer cylinder 1 supported by the gantry 3.

  The insertion carriage 5 has second carriage bodies 27 equipped with traveling wheels 26 for moving in a direction approaching and moving away from the gantry 3 in a total of four locations, one end left and right and the rear end left and right. The traveling wheel 26 at one end of the second carriage main body 27 is configured to be rotatable by a known drive mechanism including a speed reducer and an electric motor, and rolls on the work rail 14. ing.

  A support tower 28 is erected on the upper portion of the second carriage body 27, and a lifting member 29 attached to the surface of the support tower 28 on the frame 3 side so as to be movable up and down with respect to the support tower 28, and A turntable 31 is attached via a traversing member 30 attached to the elevating member 29 so as to be movable left and right.

  The turntable 31 is configured to be rotatable by a known drive mechanism including a speed reducer and an electric motor, and includes a rotating shaft 32 that protrudes horizontally toward the gantry 3 side. The axis Z3 of the rotation axis coincides with the rotation center of the turntable 31.

  A cylinder is used for the means for moving the elevating member 29 up and down with respect to the support tower 28 and the means for moving the traversing member 30 left and right with respect to the elevating member 29. The rotary shaft 32 of the table 31 is displaced vertically and horizontally, and the axis Z3 of the rotary shaft 32 can be positioned coaxially with the axis Z2 of the inner cylinder 2 placed on the auxiliary insertion carriage 4.

  A central portion of a position adjusting jig 33 that can be coaxially mounted on an end portion (base end portion) of the inner cylinder 2 opposite to the gantry 3 is connected to the rotation shaft 32 of the turntable 31. When viewed in the direction of the axis Z3 of the rotation shaft 32, the position adjusting jig 33 is formed in a cross shape having four arms 34 whose tips are in contact with the inner peripheral surface of the inner cylinder 2. Are bolted to the inner cylinder 2.

  A hole 35 penetrating in the direction of the axis Z3 of the rotating shaft 32 is formed in the center portion of the position adjusting jig 33, and the outer race 37 of the spherical plain bearing 36 is fitted into the hole 35. The inner race 38 of the spherical plain bearing 36 is attached with a cylindrical bracket 39 whose end on the gantry 3 side is closed and whose end on the opposite side of the gantry 3 is open.

  The rotating shaft 32 has an outer diameter that is larger than the inner diameter of the bracket 39 on the side opposite to the gantry 3 side, and a portion that extends continuously to the gantry 3 side is set to an outer diameter that can be inserted into the bracket 39. The portion has a tapered shape in which the outer diameter gradually decreases toward the gantry 3 side.

  Therefore, even if the center line of the bracket 39 is obliquely displaced with respect to the axis Z3 of the rotation shaft 32, when the rotation shaft 32 approaches the bracket 39 due to the movement of the second carriage body 27, the rotation shaft 32 The tapered portion guides the entire rotating shaft 32 into the bracket 39, and the inner race 38 of the spherical plain bearing 36 moves relative to the outer race 37, so that the center line of the bracket 39 is coaxial with the axis Z 3 of the rotating shaft 32.

  The end face of the bracket 39 on the side of the gantry 3 is configured so that the bolt 40 can pass therethrough, and the bolt belonging to the end face is screwed into the tip end portion of the rotary shaft 32 so as to belong to the position adjusting jig 33. 39 and the rotary shaft 32 belonging to the turntable 31 of the insertion carriage 5 are fastened to each other.

  The guide roller 6 is pivotally supported by a bracket that can be attached to the lower edge of the end portion (tip end portion) of the inner cylinder 2 on the gantry 3 side by a known fixing tool such as a clamp, and is centered on an axis extending in the tangential direction of the inner cylinder 2. It is configured to rotate and roll along the inner bottom portion of the outer cylinder 1 in the direction in which the axis Z1 of the outer cylinder 1 extends.

  The guide roller 7 is pivotally supported by a bracket that can be attached to the lower edge of the end portion (tip end portion) of the inner cylinder 2 on the frame 3 side by a known fixture such as a clamp, and is centered on an axis parallel to the axis Z2 of the inner cylinder 2 And can be rolled in the circumferential direction of the outer cylinder 1 along the inner bottom portion of the outer cylinder 1.

  Next, the operation of the inner cylinder inserting device into the outer cylinder shown in FIGS. 1 to 6 will be described.

  When inserting the inner cylinder 2 opened at both ends into the outer cylinder 1 opened at both ends, the outer cylinder 1 is supported by the outer cylinder turning roller 11 of the gantry 3 so that the axis Z1 thereof is in the horizontal direction. The cylindrical turning roller 11 is rotated to adjust the circumferential position (circumferential phase) of the outer cylinder 1, the axial center distance of the outer cylinder turning roller 11 is adjusted as necessary, and the outer cylinder 1 is moved to its axis Z1. Hold so that is level.

  Further, the inner cylinder 2 is supported by the inner cylinder turning roller 25 of the auxiliary insertion carriage 4 so that the axis Z2 thereof is in the horizontal direction, and the inner cylinder turning roller 25 is rotated to rotate the inner cylinder 2 in the circumferential position (circumference). (Direction phase) is adjusted, and the inner cylinder turning roller 25 is moved in a direction perpendicular to the axis Z2 of the inner cylinder 2 and the vertical position of the guide member 23 is adjusted to change the axis Z2 of the inner cylinder 2 Align with the axis Z1 of the outer cylinder 1.

  When the operation of mounting the outer cylinder 1 on the gantry 3 and the operation of mounting the inner cylinder 2 on the auxiliary insertion carriage 4 are completed, the auxiliary insertion carriage 4 is moved to a position where the inner cylinder turning roller 25 does not interfere with the outer cylinder 1. Is moved toward the gantry 3, and the end of the inner cylinder 2 on the gantry 3 side is inserted into the outer cylinder 1.

  A position adjusting jig 33 is attached to the base end portion of the inner cylinder 2, and the vertical position of the elevating member 29 with respect to the support tower 28 and the horizontal position of the traversing member 30 with respect to the elevating member 29 are adjusted. The axis Z3 of the rotary shaft 32 is aligned with the center line of the bracket 39 of the position adjusting jig 33.

  After the insertion carriage 5 is moved toward the auxiliary insertion carriage 4 and the rotating shaft 32 of the turntable 31 is fitted to the bracket 39 of the position adjusting jig 33, the bracket 39 is fastened to the rotating shaft 32 with the bolt 40, The turntable 31 of the insertion carriage 5 is connected to a position adjustment jig 33 attached to the inner cylinder 2, and the guide roller 6 is attached to the lower edge of the distal end portion of the inner cylinder 2.

  When the guide member 23 of the auxiliary insertion carriage 4 is lowered, the inner cylinder turning roller 25 is separated from the outer peripheral surface of the inner cylinder 2, and the guide roller 6 attached to the lower edge of the end of the inner cylinder 2 on the frame 3 side is It contacts the inner bottom surface of the tube 1.

  If the auxiliary insertion carriage 4 remains on the work rail 14, the insertion carriage 5 cannot move toward the gantry 3, so that the auxiliary insertion carriage 4 is moved to the side of the work rail 14.

  The auxiliary insertion carriage 4 is moved along the work rail 14, and the retracting wheel 17 is positioned at the laying position of the retracting rail 18. When the bracket 16 is pushed down, the tread surface of the retraction wheel 17 is in a traversing state located below the tread surface of the traveling wheel 12, and the tread surface of the traveling wheel 12 is separated from the work rail 14. Is moved to the side of the work rail 14 along the retraction rail 18.

  When the operation of moving the auxiliary insertion carriage 4 to the side of the work rail 14 is performed, the insertion carriage 5 is moved to the gantry 3 side, and the inner cylinder 2 is inserted into the outer cylinder 1. At this time, since the guide roller 6 rolls on the inner bottom surface of the outer cylinder 1 in the direction of the axis Z1 of the outer cylinder 1, contact between the outer cylinder 1 and the inner cylinder 2 can be prevented. Further, since the outer cylinder 1 and the inner cylinder 2 are supported sideways, the distance between the inner peripheral surface of the outer cylinder 1 and the outer peripheral surface of the inner cylinder 2 can be confirmed from both ends of the outer cylinder 1 and the inner cylinder 2. .

  When it is necessary to adjust the relative circumferential position (circumferential phase) between the outer cylinder 1 and the inner cylinder 2, a guide roller 7 is mounted on the lower edge of the tip of the inner cylinder 2 instead of the guide roller 6. Then, the turntable 31 of the insertion carriage 5 is rotated to adjust the circumferential position (circumferential phase) of the inner cylinder 2. At this time, since the guide roller 7 rolls on the inner bottom surface of the outer cylinder 1 in the circumferential direction of the outer cylinder 1, contact between the outer cylinder 1 and the inner cylinder 2 can be prevented.

  Furthermore, a spacer is interposed between the inner peripheral surface of the outer cylinder 1 and the outer peripheral surface of the inner cylinder 2, and the outer cylinder 1 and the inner cylinder 2 are welded to the spacer, whereby the outer cylinder 1 and the inner cylinder 2 are relative to each other. Fix the position. Thereafter, the connection between the rotary shaft 32 of the turntable 31 and the position adjusting jig 33 attached to the inner cylinder 2 is released, and the insertion carriage 5 is moved in a direction away from the gantry 3, so that the position adjusting jig is moved. The tool 33 is removed from the inner cylinder 2.

DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Inner cylinder 3 Base 4 Auxiliary insertion carriage 5 Insertion carriage 8 Outer cylinder base 11 Outer cylinder turning roller 13 First carriage main body 17 Retraction wheel 23 Guide member 24 Bracket 25 Inner cylinder turning roller 27 Second Cart body 31 turntable 32 rotating shaft 33 position adjusting jig Z1 axis Z2 axis

Claims (5)

A stand for supporting the outer cylinder so that its axis is in a horizontal direction;
An auxiliary insertion carriage on which an inner cylinder extending in the same direction as the outer cylinder is placed and movable in a direction approaching and separating from the frame and a direction intersecting the axis of the inner cylinder;
An insertion carriage that is fixedly attached to the end of the inner cylinder opposite to the gantry via a position adjusting jig and is movable in a direction approaching and separating from the gantry;
An apparatus for inserting an inner cylinder into an outer cylinder, comprising a guide roller detachably attached to an end of the inner cylinder on the frame side and capable of rolling on an inner peripheral surface of the outer cylinder. The gantry has two outer cylinder bases arranged side by side in the axial direction of the outer cylinder,
2. Each of the outer cylinder bases is provided with two outer cylinder turning rollers capable of coming into contact with the outer peripheral surface of the outer cylinder so as to be horizontally movable in a direction intersecting the axis of the outer cylinder. The inner cylinder insertion apparatus to the outer cylinder of description. The auxiliary insertion trolley has a first trolley body that can move in the direction of approaching and moving away from the gantry,
A retracting wheel for moving the auxiliary insertion cart in a direction intersecting the axis of the inner cylinder is disposed on the first cart body, the tread surface of the retracting wheel being positioned below the tread surface of the traveling wheel. The inner cylinder insertion device for an outer cylinder according to any one of claims 1 and 2, wherein the inner cylinder insertion apparatus is provided so as to be capable of ascending and descending between a traversing position of the vehicle and a storage position positioned above the tread surface of the traveling wheel. Auxiliary insertion cart
Two guide members are arranged on the first carriage main body so as to be vertically movable and arranged in the axial direction of the inner cylinder, and two inner cylinder turning rollers that can come into contact with the outer peripheral surface of the inner cylinder are provided on each guide member. The inner cylinder insertion device for an outer cylinder according to claim 3, wherein the inner cylinder insertion apparatus is provided so as to be horizontally movable in a direction intersecting the axis of the cylinder. The insertion carriage has a second carriage main body that can move in a direction approaching and separating from the gantry, and a position adjusting jig that can be coaxially mounted on the end opposite to the gantry of the inner cylinder,
A turntable equipped with a rotary shaft that extends in the axial direction of the inner cylinder and can be connected to the position adjusting jig can be moved up and down to the second carriage body and in a direction intersecting the axis of the inner cylinder. The inner cylinder insertion device to the outer cylinder according to claim 1, wherein the inner cylinder insertion device is provided in the outer cylinder.

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