JP6628618B2 - Jig for attaching and detaching chuck cylinder of tubing device - Google Patents

Description

  The present invention relates to a jig for attaching and detaching a chuck cylinder of a tubing device, and more particularly, to a jig for attaching and detaching a chuck cylinder of a tubing device that can easily attach and detach a chuck cylinder mounted on a chuck frame.

  The tubing device is generally provided with a base frame installed on the ground, a drive frame provided above and below the base frame via a lift cylinder, and a drive frame provided above and below the drive frame so as to be liftable via a chuck cylinder. And a casing tube insertion hole which is provided coaxially through a central portion of the base frame, the drive frame and the chuck frame in a vertical direction, and through which a casing tube is inserted.

  When transporting this tubing device, the base frame, drive frame, and chuck frame are disassembled and transported, respectively. 2. Description of the Related Art Transport is performed in an obliquely inclined state via a support table (for example, see Patent Document 1).

JP 2012-117250 A

  However, as shown in FIG. 13, in a chuck frame 41 of a large-diameter tubing apparatus for constructing a casing having a diameter of more than 3 m, the chuck frame 41 is tilted obliquely via a tilt support table 42 and is mounted on a trailer carrier. When placed, there is a possibility that the plurality of chuck cylinders 43 that are arranged to protrude below the lower surface plate 41a of the chuck frame 41 protrude outward from the transport restriction L1. For this reason, the chuck cylinder 43 is detached from the chuck frame 41 and transported. However, the work of removing the chuck cylinder 43 is troublesome, and when the tubing device is assembled at the work site, it is attached to the chuck frame 41 with high accuracy. Because of the necessity, the work was troublesome.

  Accordingly, an object of the present invention is to provide a chuck cylinder attaching / detaching jig of a tubing device capable of easily attaching / detaching a chuck cylinder to / from a chuck frame.

  In order to achieve the above object, a chuck cylinder attaching / detaching jig of a tubing device of the present invention includes an attaching portion having a first pin insertion hole detachably connected to a chuck frame via a first fixing pin on an upper portion. A rod having a second pin insertion hole which is detachably connected to a drive frame disposed below the chuck frame via a second fixing pin at a lower portion, and which is lower than a lower surface plate of the chuck frame. A chuck cylinder attaching / detaching jig for a tubing device used when attaching / detaching a chuck cylinder of a tubing device arranged to be protruded downward to / from the chuck frame, wherein the chuck cylinder attaching / detaching jig includes the chuck cylinder. A chuck cylinder receiver held inside; and the second pin provided inside the chuck cylinder receiver. It is characterized in that it comprises a chuck cylinder connecting portion having a pin insertion hole corresponding to the through hole.

Further, it is preferable that a plurality of adjustment bolts for adjusting a height position and a posture of the chuck cylinder inserted into the chuck cylinder receiver are provided. Further, it is preferable that a mounting table for mounting a protection cylinder of a lifting cylinder protruding downward from the lower surface plate of the chuck frame is provided. Further, it is preferable that the chuck cylinder attaching / detaching jig is arranged corresponding to the position of the chuck cylinder of the chuck frame, and adjacent chuck cylinder attaching / detaching jigs are connected by a connecting member.

  According to the jig for attaching / detaching the chuck cylinder of the tubing device of the present invention, the chuck cylinder can be easily attached / detached to / from the chuck frame. Can be attached.

  In addition, by providing a plurality of adjustment bolts for adjusting the height position and posture of the chuck cylinder inserted into the chuck cylinder receiver, the positioning of the second pin insertion hole and the pin insertion hole can be easily performed. it can. Further, the jig for attaching / detaching the chuck cylinder includes a mounting table on which the protection cylinder of the elevating cylinder protruding downward from the lower surface plate of the chuck cylinder is mounted, so that the chuck frame is lowered by the crane, and The chuck cylinder can be securely accommodated in the chuck cylinder receiver of the chuck cylinder attaching / detaching jig. Further, by connecting the chuck cylinder attaching / detaching jigs with a connecting member, it is possible to position the plurality of chuck cylinders.

FIG. 2 is a front view of a chuck frame and a chuck cylinder attaching / detaching jig showing one embodiment of the present invention. FIG. 3 is a plan view of the chuck cylinder attaching / detaching jig. It is an important section enlarged plan view of a jig for attaching and detaching a chuck cylinder similarly. FIG. 3 is a front view of a main part of the chuck frame and a chuck cylinder attaching / detaching jig in a state where the chuck cylinder is housed in the chuck cylinder attaching / detaching jig. FIG. 4 is a front view of the main parts of the chuck frame and the chuck cylinder attaching / detaching jig in a state where the chuck frame is raised after the chuck cylinder is housed in the chuck cylinder attaching / detaching jig. FIG. 4 is a front view of a state in which the chuck cylinder is held in a chuck cylinder attaching / detaching jig and then the chuck cylinder attaching / detaching jig is lifted. FIG. 3 is a front view of the tubing device. It is a top view of a tubing apparatus similarly. FIG. 3 is a side view of the tubing device. It is a front view of the state where the chuck frame was similarly mounted on the trailer. It is a front view of the state where the drive frame was similarly mounted on the trailer. It is a front view of the state where the base frame was similarly mounted on the trailer. FIG. 5 is a front view of a state where the chuck frame is mounted on a trailer while the chuck cylinder is mounted.

  FIGS. 1 to 12 show an embodiment of the present invention. In transporting the tubing device, the tubing device is disassembled into frames, and the chuck cylinder is removed from the chuck frame using a chuck cylinder attaching / detaching jig. , And can be placed on a trailer within transportation restrictions.

  The tubing device 11 of this embodiment is a large-sized tubing device for constructing a casing having a diameter of more than 3 m, and is provided so as to be able to move up and down through a base frame 12 installed on the ground and an elevating cylinder above the base frame 12. A drive frame 13 and a chuck frame 15 provided above the drive frame 13 via a chuck cylinder 14 so as to be movable up and down. Each of the frames 12, 13, 15 is formed in a rectangular shape in plan view. In addition, a casing tube insertion hole 16 is formed in the center portion and is provided to penetrate in the vertical direction.

  The chuck frame 15 is provided on the outer peripheral side of the casing tube insertion hole 16 with an upper plate 15a and a lower plate 15b having a rectangular shape in a plan view, an outer plate 15c connecting outer ends of the upper plate 15a and the lower plate 15b, A box-shaped main body is formed by the ring-shaped peripheral wall 15d arranged on the outer periphery of the casing tube insertion hole 16. At the corners of the chuck frame 15, protection cylinders 15 e of four lifting cylinders are respectively provided to project downward, and further, near the corners on the long sides, four chuck cylinders 14 are directed downward. Each is protruding.

  The chuck cylinder 14 has a mounting portion 14c having a first pin insertion hole 14b protruding from an upper portion of a cylinder body 14a, and a rod 14e having a second pin insertion hole 14d protruding from a lower portion of the cylinder body 14a. The drive frame is detachably connected to the chuck frame 15 via a first fixing pin 17 inserted through the first pin insertion hole 14b, and is connected via a second fixing pin 18 inserted through the second pin insertion hole 14d. 13 is detachably connected. The chuck cylinder 14 closes the chuck holding the casing tube by operating the cylinder to bring the drive frame 13 and the chuck frame 15 close to each other, and opens the chuck by separating the drive frame 13 and the chuck frame 15 from each other. .

  The tubing device 11 is carried into the site before the start of the foundation work, and is carried out from the site after the completion of the foundation work. Is being done. These frames 12, 13 and 15 having a large width are transported in a state in which one side in the vehicle left-right direction is raised via a tilt support base 19 on a loading platform of a trailer in order to transport the frames 12, 13 and 15 within the transport restrictions. Is done. As described above, the chuck frame 15 of the large-diameter tubing apparatus 11 for installing a casing tube having a diameter of more than 3 m is mounted on the trailer carrier with the chuck frame 15 inclined obliquely via the inclined support base 19. When the chuck cylinder 14 is placed, the chuck cylinder 14 may protrude outward from the transport restriction L1. Therefore, the chuck cylinder 14 is removed from the chuck frame 15 using the chuck cylinder attaching / detaching jig 21, and then the trailer carrier is loaded. Place on.

  The chuck cylinder attaching / detaching jig 21 includes four jig main bodies 22 accommodating the chuck cylinder 14 and a mounting table 24 that is connected to the jig main body 22 by connecting arms 23 and mounts the protective cylinder 15e. Have.

  The jig body 22 includes a chuck cylinder connecting portion 22b for connecting the chuck cylinder 14 inside a cylindrical chuck cylinder receiver 22a having an inner diameter capable of holding the chuck cylinder 14. The chuck cylinder connecting portion 22b is vertically set up at a horizontal bottom plate 22c attached to a predetermined height position inside the chuck cylinder receiver 22a, and at a position of the bottom plate 22c corresponding to the rod 14e of the inserted chuck cylinder 14. 22d, and a pin insertion hole 22e is formed in the connection plate 22d. The pin insertion hole 22e and the first pin insertion hole 14b and the second pin insertion hole 14d of the chuck cylinder 14 are formed to have the same diameter. A first adjustment bolt 25 for adjusting the height position of the chuck cylinder 14 by abutting against the rod 14e of the chuck cylinder 14 is attached to the bottom plate 22c so as to be able to protrude upward, and is attached to the peripheral wall of the chuck cylinder receiver 22a. The four second adjustment bolts 26 that abut on the outer peripheral surface of the chuck cylinder 14 to adjust the attitude of the chuck cylinder 14 are attached so as to be able to adjust the protrusion amount in the center axis direction of the chuck cylinder receiver 22a. An opening 22f is formed on the front side of the chuck cylinder receiver 22a, and a pin insertion hole 22e is exposed to the outside through the opening 22f. The mounting table 24 is formed in a rectangular parallelepiped shape on which the protection cylinder 15e can be mounted, and a pair of plate members 24a, 24a is mounted on a diagonal line on an opened upper surface.

  The four chuck cylinder attaching / detaching jigs 21 formed in this manner are respectively arranged at four positions corresponding to the positions where the chuck cylinder 14 and the protective cylinder 15e are arranged on the chuck frame 15, and the adjacent chuck cylinder attaching / detaching jigs are attached. The jigs 21 are connected to each other by a connecting member 27 and positioned. At predetermined positions of the jig main body 22, the mounting table 24, and the connecting member 27, a plurality of hanging fittings 28 are provided.

  Next, a procedure for removing the chuck cylinder 14 from the chuck frame 15 will be described with reference to FIGS. First, as shown in FIGS. 1 to 3, the wire 29 is connected to the hanging members 15f, 15f of the chuck frame 15 and lifted by a crane, and four chuck cylinders connected and removed in a substantially rectangular shape by the connecting member 27 are attached and detached. It is arranged on the upper part of the jig 21.

  Next, as shown in FIG. 4, the chuck frame 15 is lowered, the chuck cylinders 14 are respectively housed in the chuck cylinder receivers 22a of the jig bodies 22, and the protection cylinders 15e are mounted on the mounting tables 24, respectively. Place. At this time, the second pin insertion hole 14d of the chuck cylinder 14 and the hydraulic hose connection portion 14f protruding from the cylinder body 14a are arranged at the position of the opening 22f. Further, the chuck cylinder 14 is lifted by operating the first adjustment bolt 25, and after receiving the weight of the chuck cylinder 14 applied to the fixing pin 17 by the first adjustment bolt 25, the first fixing pin 17 is removed and The connection between the chuck cylinder 14 and the chuck frame 15 is released, and then the first adjustment bolt 25 is operated to adjust the height position of the chuck cylinder 14 in the chuck cylinder receiver 22a. Further, by operating the four second adjustment bolts 26 to adjust the posture of the chuck cylinder 14 in the chuck cylinder receiver 22a, the second pin insertion hole 14d of each chuck cylinder 14 and the connection plate 22d are formed. The first fixed pin 17 thus removed is mounted over the second pin insertion hole 14d and the pin insertion hole 22e by aligning the position with the pin insertion hole 22e. 21 are connected.

  Next, as shown in FIG. 5, by lifting the chuck frame 15 with a crane, each chuck cylinder 14 can be removed from the chuck frame 15, and the chuck frame 15 from which the chuck cylinder 14 has been removed is shown in FIG. In this way, the trailer is transported in a state where the trailer is inclined obliquely via the inclined support table 19. Also, as shown in FIG. 6, by removing the connecting member 27 and connecting and lifting the wire 29 to the hanging metal fitting 28, the chuck cylinder 14 is transported integrally with the chuck cylinder attaching / detaching jig 21, At the work site, it is attached to the chuck frame 15 by a procedure reverse to the procedure described above. Also, as shown in FIGS. 11 and 12, the base frame 12 and the drive frame 13 are transported in a state where the base frame 12 and the drive frame 13 are obliquely inclined to the loading platform of the trailer via the inclined support table 19, similarly to the chuck frame 15. .

  Thus, the chuck cylinder 14 can be easily attached to and detached from the chuck frame 15, so that the transport work is not troublesome, and the chuck cylinder 14 can be securely mounted on the chuck frame 15 at the work site.

  The jig for attaching / detaching the chuck cylinder according to the present invention is not limited to the above-described embodiment, and may not include a mounting table on which the protection cylinder is placed. It does not matter even if it does not have. Further, the chuck cylinder receiver need not be cylindrical as long as it can accommodate the chuck cylinder.

11 tubing device, 12 base frame, 13 drive frame, 14 chuck cylinder, 14a cylinder body, 14b first pin insertion hole, 14c mounting part, 14d second pin insertion hole, 14e rod 14f: hydraulic hose connection, 15: chuck frame, 15a: upper plate, 15b: lower plate, 15c: outer plate, 15d: peripheral wall, 15e: protective cylinder, 15f: hanging bracket, 16: casing tube insertion hole, 17: 1st fixing pin, 18 ... 2nd fixing pin, 19 ... inclined support stand, 21 ... chuck cylinder mounting jig, 22 ... jig main body, 22a ... chuck cylinder receiver, 22b ... chuck cylinder connecting part, 22c ... bottom plate, 22d: connecting plate, 22e: pin insertion hole, 22f: opening, 23: connecting arm, 24: mounting table, 24a: plate material, 25: first adjustment button DOO, 26 ... second adjusting bolt, 27 ... coupling member, 28 ... hanger, 29 ... wire

Claims (4)

An attachment portion having a first pin insertion hole removably connected to the chuck frame via a first fixing pin at an upper portion, and a drive frame disposed below the chuck frame via a second fixing pin at a lower portion. When a chuck cylinder of a tubing device, which has a rod having a second pin insertion hole detachably connected to the chuck frame and is disposed so as to project below the lower surface plate of the chuck frame, is attached to and detached from the chuck frame. A jig for attaching and detaching a chuck cylinder of a tubing device used for
The jig for attaching / detaching the chuck cylinder includes a chuck cylinder receiver for holding the chuck cylinder inside, and a chuck cylinder connection provided inside the chuck cylinder receiver and having a pin insertion hole corresponding to the second pin insertion hole. And a jig for attaching / detaching the chuck cylinder of the tubing device. The chuck cylinder mounting / dismounting jig for a tubing device according to claim 1, further comprising a plurality of adjustment bolts for adjusting a height position and a posture of the chuck cylinder inserted into the chuck cylinder receiver. The jig for attaching / detaching a chuck cylinder of a tubing device according to claim 1 or 2, further comprising a mounting table on which a protection cylinder of an elevating cylinder protruded downward from the lower surface plate of the chuck frame is mounted. .   4. The chuck cylinder attaching / detaching jig is arranged corresponding to a position of a chuck cylinder of the chuck frame, and adjacent chuck cylinder attaching / detaching jigs are connected by a connecting member. A jig for attaching / detaching a chuck cylinder of a tubing device according to any one of the preceding claims.

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