JP4346010B2 - Chip recovery device in continuous water cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chip recovery device in a continuous water cutting device that cuts a fluid pipe in a sealed state.
[0002]
[Prior art]
As a chip collection method in a continuous water cutting apparatus that cuts a conventional fluid pipe in a sealed state, for example, a chip collection apparatus described in Patent Document 1 has been used. FIG. 9 is a cross-sectional view of the chip recovery device disclosed in Patent Document 1.
[0003]
As shown in FIG. 9, a sealed casing (split T-shaped tube) 02 used at the time of continuous cutting of the fluid pipe in a sealed state is attached to the cut portion of the fluid pipe 01, and the suction pipe is opened and closed by opening and closing the work gate valve 03. 04 is inserted into the sealed casing 02, and chips Z generated at the time of cutting stored in the bottom of the sealed casing 02 are sucked out to the external collection box 05.
[0004]
[Patent Document 1]
Utility Model Registration No. 2535896 (paragraphs 0019-0021, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, although such a conventional chip recovery method can discharge a certain amount of chips, the tip suction port of the suction pipe 04 has to be moved and exhausted to every corner, and the operation requires skill. Not only will the suction pipe 04 move, but the chips Z stored at the bottom of the sealed casing 02 will be swirled. There was a risk of flowing toward the side.
[0006]
The present invention has been made in view of the above-described problem, and in an uninterrupted water cutting device that can easily and reliably be taken out without excess chips generated during cutting of the fluid pipe being mixed into the fluid pipe. The object is to provide a chip recovery device.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the chip collecting device in the continuous water cutting device of the present invention is provided with a sealed casing having a storage space located below the fluid pipe and capable of storing chips, in the cutting part of the fluid pipe. It is a chip recovery device in a continuous water cutting device that is mounted and cut,
Wherein a removably from the outside through the opening of the sealed casing, at one axial end has a crank handle, rotational operation with center at the other axial end the Ru is rotatably supported on the bottom of the sealed casing The axis,
A revolving operation tube having a handle at an upper end and passing through the rotation operation shaft;
A housing fixed to the lower end of the revolving operation tube;
A magnet rotor mounted on a rotation shaft that is rotatably supported perpendicular to the rotation axis of the rotation operation shaft, together with a bevel gear that is rotatably inserted and supported by a boss at a lower end of a bracket attached to a side surface of the housing; ,
A chip recovery box attached to a side surface orthogonal to the side surface of the housing and having an opening for storing chips,
A scraper that is provided at the opening of the chip recovery box and scrapes off the chips magnetically attached to the outer periphery of the magnet rotor ;
The magnet rotor is positioned in the storage space and the chips stored in the storage space are adsorbed in a state where the rotation operation shaft is supported at the bottom of the sealed casing .
According to this feature, the storage space at the bottom of the sealed casing is located below the fluid pipe, and the chips are stored in the storage space without being affected by the flowing water in the fluid pipe. As the magnet revolves, the chips can be efficiently collected and magnetized, and the magnet rotor rotates, whereby the chips can be scraped off by a scraper and stored in the collection box.
Further, since the rotation axis of the magnet rotor is orthogonal to the rotation center axis of the rotation operation axis, the magnet rotor can be provided at a position away from the rotation operation axis, and a scraper and a collection box can be easily attached.
Further, since the rotation center axis of the revolution operation tube is at the same position as the rotation center axis of the rotation operation shaft, the rotation operation shaft and the revolution operation tube can be arranged on the same rotation center axis, so that they are arranged like a double tube. Both operating bodies can be made compact.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is a side view showing a standby state of the continuous water cutting device before cutting with a cutting tool assembled to a fluid pipe, and FIG. 2 is a chip recovery device for collecting chips accumulated on the bottom during cutting by the continuous water cutting device. FIG. 3 is a sectional view showing a state in which the chips recovered by raising the chip recovery device to the outside and FIG. 4 shows a driving mechanism for rotating or revolving the magnet rotor. FIG. 5 is a sectional view taken along the line CC of FIG. 4, FIG. 6 is a sectional view taken along the line DD of FIG. 4, FIG. 7 is an enlarged sectional view of the part B of FIG. It is EE sectional drawing.
[0013]
Before explaining the chip recovery apparatus of the present invention, it will be described with reference to FIG. 1 attached to a chip recovery apparatus for recovering chips generated at the time of cutting an existing fluid pipe by a cutting tool of a continuous water cutting apparatus. To do.
[0014]
In FIG. 1, 1 is an existing fluid pipe such as a water pipe made of a ductile cast iron pipe or a steel pipe, for example, as a cutting object excavated from the ground 2 and exposed for a predetermined length. The cutting tool 3 which is surrounded by the sealing casing 4 so as to be able to cut in an uninterrupted water state and which is set in its raised position via the gate valve 12 on the upper side of the sealing casing 4 is lowered. It is designed to be cut off.
[0015]
The chip capturing device 5 is composed of an operation unit composed of an operation pipe 6 and a net unit 7, and is disposed at two upstream and downstream locations P 1 and P 2 in the vicinity of the cutting site of the water pipe 1.
[0016]
The reason for providing this chip collection device 5 at two locations P1 and P2 is that even if the demand location of water fluctuates and the direction of the water flow changes in the forward or reverse direction, either one of the chip capture devices 5 or 5 must be used. This is to capture the chips.
[0017]
In the state before the water pipe 1 is cut, the net portion 7 is disposed in the chip collecting housing 9 above the gate valve 8 by the operation pipe 6. The net part 7 of the chip capturing device 5 arranged at the locations P1 and P2 is set at the capturing position, and the cutting tool 3 is lowered to cut the fluid pipe 1 in an undisturbed water state. Chips floating on the surface are captured by a flexible net (not shown).
[0018]
After the water pipe 1 is cut, the cutting tool 3 is raised to the raised position, the gate valve 12 provided on the upper part of the sealing casing 4 is closed, the cutting tool 3 on the gate valve 12 is removed, and the sealing casing 4 is removed. In order to collect the chips accumulated on the bottom, the chip collection device of the present invention is attached to the upper part of the gate valve 12.
[0019]
Next, the chip recovery device of the present invention will be described.
[0020]
This chip collection device collects the chips accumulated and stored in the storage space formed at the bottom of the sealed casing 4 that could not be captured by the chip capture devices 5 and 5. In FIG.
[0021]
As shown in FIGS. 2 and 3, two extension pipes 14 and 15 are attached to the upper part of the gate valve 12 attached to the upper part of the sealed casing 4 via flanges 14a and 15a. The flange 16 of the auxiliary pipe 18 is attached to the upper flange 15b, and the upper end of the auxiliary pipe 18 is positioned to position the rotary operation unit 25 that is rotated by an external operation, or the upper and lower ends of the chip collection device 10. Part 20 is provided.
[0022]
The chip recovery device 10 can recover the chips accumulated and stored in the storage space at the bottom of the sealed casing 4 by the rotation operation unit 25 and the positioning unit 20, and then take out the lower end shown in FIG. Further, it can be moved to the rising end shown in FIG.
[0023]
Specifically, as shown in FIGS. 4 to 6, the chip collection device 10 is a rotary operation shaft 28 that is a first operation body extending in the vertical direction, and a second operation body that is inserted through the rotation operation shaft 28. A revolving operation tube 30, a bevel gear 55 rotatably inserted into and supported by a boss 48 a at the lower end of a bracket 48 attached to a side surface of a square housing 36 fixed to the lower end of the revolving operation tube 30, and the bevel gear 55 In addition, a magnet rotor 52 made of a disk-like magnetic body mounted on a rotation shaft 50 that is rotatably supported perpendicular to the rotation axis of the rotation operation shaft 28, and a bevel gear below the rotation operation shaft 28. 55, a bevel gear 54 meshed with 55, a chip collection box 46 attached to a side surface orthogonal to the side surface to which the bracket 48 of the square housing 36 is attached, and a tip of the magnet rotor 52 on the outer periphery in the rotational direction. As countercurrent sliding contact, and a scraper 56 for accommodating therein chip collecting box 46 outright through the opening 46a scrapes the chips were magnetically attached to the outer periphery of the magnet rotor 52.
[0024]
The rotation operation shaft 28 is inserted and supported inside a hollow tube 32 housed in the revolution operation tube 30, and a conical center 28 a at the lower end serving as a point is rotatably supported by a boss 4 a inside the bottom surface of the sealing casing 4. ing.
[0025]
Accordingly, when the rotation operation shaft 28 is rotated, the magnet rotor 52 rotates around the rotation center axis of the rotation shaft 50 via the pair of bevel gears 54 and the bevel gear 55, and when the revolution operation tube 30 is further rotated, the magnet The rotor 52 revolves around the rotation center axis of the revolution operation tube 30 while rotating on the tooth surface around the fixed bevel gear 54.
[0026]
Next, it attaches to the rotation operation part 25 thru | or the positioning part 20, and demonstrates with reference to FIG. 7, FIG.
[0027]
FIG. 7 shows a state in which the chip recovery device 10 is located at the lower end. In this state, a stepped portion 40 formed on the upper part of the revolution operation pipe 30 is provided at the upper end of the auxiliary pipe 18. Although the upward movement of the revolution operation tube 30 is restricted by contacting the lower surface of the inner peripheral edge of the flange 20 configured as a positioning portion to be joined to the flange 18a, the rotation of the revolution operation tube 30 is free.
[0028]
The outer periphery below the stepped portion 40 is liquid-tightly sealed by a seal member 44 provided on the inner periphery of the insertion hole of the flange 18a, and the outer periphery of the small diameter portion above the stepped portion 40 is a seal provided on the inner periphery of the insertion hole of the flange 20. The member 42 is hermetically sealed.
[0029]
A holding body 37 is fixed to the upper surface of the flange 20, and a vertical dividing groove 37 a communicating with the insertion hole through which the outer periphery of the small diameter portion above the stepped portion 40 is inserted from above to near the lower side. A pair of projecting pieces 38 are provided from the side of the holding body main body so as to sandwich the vertically dividing groove 37a.
[0030]
A transverse groove 37b is formed in the circumferential direction of the holding body 37 from the lower end portion of the vertical dividing groove 37a and formed in the vicinity of the lower side of the holding body 37 so that the holding body 37 above the lateral dividing groove 37b can expand and contract in the circumferential direction. It is configured. Then, by operating the clamp handle 21 attached to the protruding piece 38, the outer periphery of the small-diameter portion above the stepped portion 40 is tightened by the vertical split groove 37a approaching the inside.
[0031]
The approaching / separating of the vertical dividing groove 37a due to the movement operation of the clamp handle 21 may be a screw action or a cam action. Then, the outer periphery of the small diameter portion above the stepped portion 40 of the revolution operation tube 30 is tightened by the proximity of the vertical dividing groove 37a, and the rotation of the revolution operation tube 30 is free by separating. .
[0032]
A cap 39 is attached to the upper end of the holding body 37, and a revolving handle 22 is fixed to the small diameter portion at the tip of the stepped portion 40 through which the cap 39 is inserted, and the revolving handle 22 is fixed to the upper end of the stepped portion 40. A sleeve 35 for holding the handle 22 is attached, and a rotating crank handle 24 is attached to the upper end of the rotation operation shaft 28 that is inserted through the sleeve 35 and protrudes from the upper surface.
[0033]
Next, an assembling procedure or operation of the chip recovery device configured as described above will be described.
[0034]
First, as shown in FIG. 2, the end portions of the inflow side water pipe 1 a or the outflow side water pipe 1 b of the water pipe 1 that has been cut off in an indefinite water state and separated into right and left are respectively liquid-tight in the sealed casing 4. The two extension pipes 14 and 15 are attached to the upper surface of the gate valve 12 after removing the cutting tool 3 of the continuous water cutting device in a state where the gate valve 12 is closed.
[0035]
Next, the gate valve 12 is opened, and the chip recovery device 10 in which the magnet rotor 52, the chip recovery box 46, the scraper 56 and the like are attached to the lower ends of the rotary operation shaft 28 and the revolution control pipe 30 is the lower end of the rotary operation shaft 28. The conical center 28a moves downward until it is supported by the boss 4a inside the bottom surface of the sealed casing 4.
[0036]
In this state, the stepped portion 40 of the revolution operation tube 30 is positioned on the lower surface of the inner peripheral edge of the flange 20 and the movement of the revolution operation tube 30 in the vertical direction is prevented. Then, by rotating the outer periphery of the revolution operation tube 30 with the clamp handle 21, the rotation of the revolution operation tube 30 is also prevented.
[0037]
By rotating the crank handle 24 with the chip collection device 10 positioned at the lower end, the magnet rotor 52 rotates through the rotation operation shaft 28, the bevel gears 54 and 55, and the rotation shaft 50.
[0038]
Next, by releasing the clamp handle 21 and releasing the tightening of the outer periphery of the small diameter portion above the stepped portion 40 and rotating the handle 22, the magnet rotor 52 and the chip collection box 46 are connected via the revolution operation tube 30. The revolving operation tube 30 can revolve around the rotation center axis.
[0039]
The chips accumulated and stored in the storage space at the bottom of the sealed casing 4 by the revolution and rotation of the magnet rotor 52 are magnetically attached to the outer periphery by the magnetic force of the magnet rotor 52, and the chips magnetically attached by the rotation of the magnet rotor 52 are It is scraped off by the scraper 56 and accommodated in the chip collection box 46.
[0040]
Next, when removing the chip collection device 10, the flange 20 that had been functioning to prevent the revolving operation pipe 30 from being pulled upward was removed from the flange 18 a, and the chip collection device 10 was pulled up to the top of the gate valve 12. The gate valve 12 is closed in the state. Therefore, the flange 16 is removed, the chip collection device 10 is taken out, and the chips contained in the chip collection box 46 are collected.
[0041]
Therefore, according to the chip recovery device 10 configured as described above, the magnet rotor 52 revolves so that chips can be efficiently collected and magnetically attached, and the magnet rotor 52 rotates to rotate the chip. The scraps can be scraped off by the scraper 56 and stored in the chip recovery box 46.
[0042]
In addition, since the bottom of the sealed casing 4 has a storage space that is located below the water pipe 1 and can store chips, the chips are sealed without being affected by running water in the water pipe 1. 4 can be stored at the bottom.
[0043]
Further, since the rotation shaft 50 of the magnet rotor 52 is orthogonal to the axis of the rotation operation shaft 28, the magnet rotor 52 can be provided at a position away from the rotation operation shaft 28. The waste collection box 46 is easy to install.
[0044]
And since the magnet rotor 52 revolves around the rotation center axis | shaft by rotation of the revolution operation pipe | tube 30, if it revolves once, most chips can be magnetized.
[0045]
In addition, since the rotation center axis of the revolution operation tube 30 can be disposed at the same position as the rotation center axis of the rotation operation shaft 28, the revolution operation tube 30 and the rotation operation shaft 28 can be compactly configured by double tubes. .
[0046]
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these examples. For example, the rotation operation shaft 28 and the revolution operation tube 30 are linked to each other to rotate the rotation operation shaft. It is also possible to revolve the magnet rotor 52 while rotating with only one operating body so that the revolving operation tube 30 is rotated by rotating only 28.
[0047]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0048]
According to the present invention, the storage space at the bottom of the sealed casing is located below the fluid pipe, and chips are stored in the storage space without being affected by running water in the fluid pipe. When the rotor revolves, the chips can be efficiently collected and magnetically attached, and when the magnet rotor rotates, the chips can be scraped off by a scraper and stored in the collection box.
Further, the magnet rotor can be provided at a position away from the rotation operation shaft, and a scraper and a collection box can be easily attached.
Furthermore, since the rotation operation shaft and the revolution operation tube can be arranged on the same rotation center axis, it is possible to arrange the rotation operation shaft and the revolution operation tube in a compact configuration by arranging them like a double tube.
[Brief description of the drawings]
FIG. 1 is a side view showing a standby state of a continuous water cutting device before cutting in which a cutting tool is assembled to a fluid pipe according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state in which chips accumulated on the bottom during cutting by the continuous water cutting device are collected by a chip collecting device.
FIG. 3 is a cross-sectional view showing a state in which chips recovered by raising the chip recovery device are taken out.
4 is an enlarged cross-sectional view of a part A in FIG. 2 showing a drive mechanism for driving the magnet rotor to rotate or revolve.
5 is a cross-sectional view taken along the line CC of FIG.
6 is a cross-sectional view taken along the line DD of FIG. 4;
7 is an enlarged cross-sectional view of a portion B in FIG.
8 is a cross-sectional view taken along the line EE of FIG.
FIG. 9 is a cross-sectional view of a conventional chip collecting device.
[Explanation of symbols]
1 Water pipe (fluid pipe)
DESCRIPTION OF SYMBOLS 1a Inflow side water pipe 1b Outflow side water pipe 2 Ground 3 Cutting tool 4 Sealing casing 4a Boss 5 Chip capture device 6 Operation pipe 7 Net part 8 Gate valve 9 Chip recovery housing 10 Chip recovery device 12 Gate valves 14, 15 Extension pipes 14a, 15a Flange 15b Flange 16 Flange 18 Auxiliary pipe 18a Flange 20 Flange (positioning part)
21 Clamp handle 22 Handle 24 Crank handle 25 Rotation operation unit 28 Rotation operation shaft (first operation body)
28a Conical center 30 Revolving operation pipe (second operation body)
32 Hollow tube 35 Sleeve 36 Square housing 37 Holding body 37a Vertical split groove 37b Horizontal split groove 38 Projection piece 39 Cap 40 Stepped portion 42, 44 Seal member 46 Chip collection box 46a Opening 48 Bracket 48a Boss 50 Rotating shaft 52 Magnet Rotors 54, 55 Bevel gear 56 Scraper

Claims (1)

A chip recovery device in a continuous water cutting device for mounting and cutting a sealed casing having a storage space that can be stored below the fluid pipe and storing chips, to a cutting site of the fluid pipe ,
Wherein a removably from the outside through the opening of the sealed casing, at one axial end has a crank handle, rotational operation with center at the other axial end the Ru is rotatably supported on the bottom of the sealed casing The axis,
A revolving operation tube having a handle at an upper end and passing through the rotation operation shaft;
A housing fixed to the lower end of the revolving operation tube;
A magnet rotor mounted on a rotation shaft that is rotatably supported perpendicular to the rotation axis of the rotation operation shaft, together with a bevel gear that is rotatably inserted and supported by a boss at a lower end of a bracket attached to a side surface of the housing; ,
A chip recovery box attached to a side surface orthogonal to the side surface of the housing and having an opening for storing chips,
A scraper that is provided at the opening of the chip recovery box and scrapes off the chips magnetically attached to the outer periphery of the magnet rotor ;
In the continuous water cutting device , wherein the magnet rotor is positioned in the storage space and the chips stored in the storage space are adsorbed in a state where the rotation operation shaft is supported on the bottom of the sealed casing . Chip recovery device.

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