JP2585226Y2 - Adapter jig for drill chain - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adapter jig for a fixing chain of a drilling machine used for repairing a pipe joint. More specifically, the present invention relates to a method for connecting a joint end of a pair of fluid conduits to a tubular joint body. The pair of fluid conduits are individually connected to both ends to communicate and connect the pair of fluid conduits, and seal rings are provided to seal between the joint body and the joint of the pair of fluid conduits, respectively. A pair of dresser flanges respectively contacting the pair of seal rings from both outer sides in the core direction are provided, and the pair of dresser flanges are tightened in a direction approaching each other, and a bolt and a nut for improving the sealing property are provided. In a pipe joint portion provided between the pair of dresser flanges at a plurality of circumferential positions of the joint main body, the joint is wound around the outside of the joint main body. About the adapter fixture for drilling machines fixing chain for securing abutted the drilling machine the peripheral surface of the joint body relative to the body.

[0002]

2. Description of the Related Art Hitherto, there has been no adapter jig for the above-mentioned chain for fixing a punch. Therefore, when the chain is wound around the outside of the joint body to fix the drilling machine against the peripheral surface of the joint body, the chain is passed through the gap between the bolt and the joint body, and the chain is passed through the peripheral surface of the joint body. Was wound directly. However, in this method, if there is a portion where the gap between the bolt and the joint body is small due to external force acting due to land subsidence or the like and the gap between the bolt and the joint body is reduced, the chain is passed through the gap. There was a drawback that it was not possible. Therefore, in such a case, the chain is extended outside the bolt in a portion where the gap is reduced, and the chain is applied to the bolt from the outside, and the chain is wound from the peripheral surface of the joint body to the outside surface of the bolt. Was.

[0003]

However, as described above, according to the method in which the chain is applied to the bolt from the outside and the chain is wound around the outside of the joint body, for example, the chain is wound while the chain is wound. If the ridges of the chain are on the bolts, and the ridges of the chain are displaced by the vibration of the machine during drilling by the drilling machine and the valleys are on the bolts, the chain is likely to be loosened. However, there has been a drawback that the fixing of the drilling machine to the peripheral surface of the joint body becomes unstable and the drilling cannot be performed reliably. The present invention solves the above-mentioned conventional drawbacks, and even if the gap between the bolt and the joint body is too small to allow a chain to pass therethrough due to deformation caused by land subsidence or the like, An object of the present invention is to ensure that a drilling machine can be securely applied to and fixed to a peripheral surface of a joint main body until drilling is completed.

[0004]

In order to achieve the above object, an adapter jig for a chain for fixing a drilling machine according to the present invention comprises: a winding body which can be wound around a pipe joint;
A fixing portion for fixing the wound body wound around the pipe joint portion to the pipe joint portion, and a front side of the wound body in a state where the wound body is wound around the pipe joint portion. In terms of
A plurality of receiving portions for receiving the chain for fixing the drilling machine are formed along the circumferential direction of the pipe joint portion more than bolts, and the operation and effect are as follows.

[0005]

That is, for example, a wound body having a width extending between the pair of dresser flanges of the pipe joint is prepared, and the wound body is wound while applying both ends of the wound body to the outer peripheral surfaces of both dresser flanges. Then, the wound body is fixed to the projecting end of the bolt or the like of the pipe joint part by the fixing part. With the wound body wound in this way, a receiving portion for receiving the drilling machine fixing chain is formed on the front surface of the wound body along the circumferential direction of the pipe joint. Thus, the chain can be wound around a winding body while being applied to the receiving portion, and the punch can be applied and fixed to the peripheral surface of the joint body. Since the receiving portion is formed in a larger number than the bolt, in a portion where the gap between the bolt and the joint body is small as in the related art, the chain is applied to the bolt from the outside thereof, and the chain is The chain can be received in more places than when wrapped around the outside of the joint body.For example, it is possible to prevent the ridge of the chain from climbing onto the bolt when the chain is wound. it can.

[0006]

Accordingly, in a part where the gap between the bolt and the joint body is small due to the deformation of the pipe joint as in the prior art, the chain is applied to the bolt from the outside thereof, and The chain can be received in more places as compared to a method in which the chain is wound around the outside of the joint body. For example, it is possible to prevent a state in which the chain ridge is climbed on a bolt when the chain is wound. Therefore, even if the gap between the bolt and the joint body has become so small that the chain cannot pass therethrough due to land subsidence or the like, the drilling machine will continue until the drilling operation is completed. Can be securely applied to and fixed to the peripheral surface of the joint body, and the drilling operation can be stably and reliably performed.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 3, an adapter jig 7 (hereinafter abbreviated as an adapter jig) for the chain for fixing a drilling machine according to the present invention is wound around a dresser 1 (an example of a pipe joint), and the adapter jig 7 is pierced. The chain 6 for fixing a drill is wound, and the chain 6 for fixing a drill is
Is applied to the dresser 1 and fixed.
This figure is a view showing one process of repair work of the dresser 1. In this state, a later-described joint body 1a of the dresser 1 is pierced by a piercing machine 8, and a seal in the dresser 1 is passed through a piercing hole in a later process. A seal material is sprayed on the part to repair the seal part.

As shown in FIG. 1, FIG. 2 and FIG. 3, the dresser 1 has a pair of pipes 2 (an example of a fluid conduit) arranged opposite to each other on the same axis in the direction of their axes. In order to constitute the dresser 1 with a pipe joint used for connection in a relatively movable manner, the joining ends of a pair of pipes 2 are individually fitted into both ends of a tubular joint body 1a. And a pair of seal rings 3 for sealing between the joint body 1a and the joint end of the existing pipe 2, respectively, and a pair of seal rings from both outer sides in the axial direction of the pipe 2. 3 and a pair of dresser flanges 4 respectively contacting with each other, and tightening the pair of dresser flanges 4 in a direction approaching each other to form a bolt 5a and a nut 5b for improving the sealing property around the joint body 1a. One It is provided over between the pair of dresser flanges 4 at a plurality of locations. In tightening the bolt 5a and the nut 5b, the seal ring 3 is pushed into the pair of narrowed annular grooves formed between the pipe 2 and the joint body 1a by the dresser flange 4, and the pipe 2 and the joint body 1a. And tightly connected to each other in a sealed state.

As shown in FIGS. 2 and 3, the punch 8
Is a columnar member 10 containing a cutting blade and its feed mechanism.
Is inserted into and fixed to a prism-shaped member 9 provided with a connecting portion to another member. The connecting portion of the prismatic member 9 is for connecting the ends of the drilling machine fixing chain 6 wound around the outside of the joint body 1a, as described later, and is connected to each of both ends of the prismatic member 9. A pair of long bolts 12 are screwed and inserted along the axial direction of the columnar member 10.

As shown in FIG. 1, the adapter jig 7
In this configuration, a rope ladder-shaped winding body 13 that can be freely wound around the joint body 1a of the dresser 1 is provided, and a fixing portion 14 for fixing the winding body 13 wound around the joint body 1a to the dresser 1 is provided. With the wound body 13 wound around the joint body 1a, a receiving portion for receiving the chain 6 is provided on the front surface of the wound body 13 along the circumferential direction of the pipe joint portion. More than 5a are formed.

Specifically, the wound body 13 is composed of two wound body chains 16 arranged in parallel with each other at a wider interval than a pair of dresser flanges 4 of the dresser 1.
A large number of metal receiving plates 15 as receiving portions are interposed therebetween at regular intervals, and both end portions of the receiving plate 15 are connected to the two wound body chains 16 respectively.

The fixing portion 14 is formed in a ring shape with a wire, and is connected to both ends of two wound body chains 16 respectively.

The method of attaching the adapter jig 7 having the above structure to the dresser 1 and the method of fixing the drilling machine to the dresser 1 using the adapter jig 7 are as follows. That is, when the adapter jig 7 is attached to the dresser 1, as shown in FIG. 2, the both ends of the wound body 13 in the width direction are applied to the outer peripheral surfaces of the pair of dresser flanges 4 of the dresser 1, respectively. And the ring-shaped fixing portions 14 are respectively engaged with the projecting ends of the bolts 5a of the dresser 1 and attached. When the drill jig is fixed to the dresser 1 by the drill jig fixing chain 6 using the adapter jig 7, the pair of long bolts 12 on one end side of the prism member 9 are used.
One end of a pair of drilling machine fixing chains 6 is separately connected to each other, and the wound body 13 is applied while the punching machine fixing chain 6 is applied to the receiving plate 15 of the adapter jig 7 wound around the dresser 1. And the free ends of the pair of drilling machine fixing chains 6 are separately connected to a pair of long bolts 12 on the other end side of the prism member 9, and the long bolts 12 are tightened to fix the drilling machine fixing chain. 6, the punch 8 is applied to the joint body 1a and fixed.

[Another Embodiment] The wound body 13 may be constituted by using a wire or the like instead of the wound body chain 16. As shown in FIG. 4, in configuring the wound body 13, the number of the receiving plates 15 was increased as compared with the case of the above-described embodiment, and the adjacent receiving plates 15 were brought closer to each other so as to contact each other. It may be something.

[0015] As shown in FIG.
A pair of arc-shaped members 17 pivotally connected along the outer peripheral surface of the right and left, respectively, and a large number of metal rods 15 as receiving portions are bridged between the left and right arc-shaped members 17 at regular intervals, The wound body 13 may be formed by fixing both ends of the rod 15 to the respective arc-shaped members 17. Fixed part 1
4 is formed by connecting a ring-shaped member formed of a wire to the free end of each arc-shaped member 17 as in the first embodiment. In this embodiment, a receiving plate may be used instead of the rod 15.

In the above embodiment, the dresser flange 4
Is wound around the outer peripheral surface of the bolt 5a, but is wound directly around the bolt 5a from the outside without being wound around the dresser flange 4.
May be set.

In the claims of the present invention, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fitting part and an adapter jig for a chain for fixing a drilling machine.

FIG. 2 is a perspective view showing a state where an adapter jig is wound around a chain for fixing a drilling machine.

FIG. 3 is a perspective view showing a fixed state of the drilling machine.

FIG. 4 is a perspective view of another embodiment.

FIG. 5 is a perspective view of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe joint part 1a Joint main body 2 Fluid conduit 3 Seal ring 4 Dresser flange 5a Bolt 5b Nut 6 Drilling machine fixing chain 8 Drilling machine 13 Winding body 14 Fixed part 15 Receiving part

Claims (1)

(57) [Scope of request for utility model registration] 1. A joint end of a pair of fluid conduits (2) is individually fitted into both ends of a tubular joint body (1a) to connect and connect said pair of fluid conduits (2), Seal ring (3) for sealing between the joint body (1a) and the joint of the pair of fluid conduits (2), respectively
And a pair of dresser flanges (4) respectively contacting the pair of seal rings (3) from both outer sides in the axial direction of the fluid conduit (2), and attaching the pair of dresser flanges (4). Bolts (5a) for tightening in the direction close to each other to enhance their sealing
And a nut (5b) are provided outside the joint body (1a) at a pipe joint portion (1) provided between the pair of dresser flanges (4) at a plurality of circumferential positions of the joint body (1a). Wrap the joint body (1a)
An adapter jig for a chain for fixing a drilling machine for abutting and fixing a drilling machine (8) to a peripheral surface of the joint body (1a), the winding being capable of being wound around the pipe joint portion (1). Body (13)
And the wound body (1) wound around the pipe joint (1).
3) A fixing part (1) for fixing the fitting to the pipe joint part (1).
4), and in a state where the wound body (13) is wound around the pipe joint portion (1), a chain (6) for fixing a boring machine is mounted on the front surface of the wound body (13). An adapter jig for a drilling machine fixing chain, wherein a number of receiving portions (15) for receiving are formed along the circumferential direction of the pipe joint portion (1) more than the bolts (5a).