JPS62294479A - Cleaner in tube - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention] (Technical Field) The present invention relates to an apparatus for cleaning the inside of a tube whose hollow section has a circular cross-sectional shape. This relates to the inner pipe cleaning twin 21 that is peeled off.

(Prior art) In pipes such as Yl pipes for transporting fluids such as refined petroleum products, pipes for transporting solid materials such as grains, roadwood pipes, gas pipes, power line pipes, etc., the inner surface of the pipe is f It is necessary to perform cleaning work to remove R objects on a regular basis.

As one of such cleaning devices, cleaning should be done 1=
A frame equipped with equipment for cleaning
There is a device that moves and cleans the frame by connecting one end of the lobes and winding the lobes around a drive mechanism installed on the ground. However, with this device, the rope must be passed through the layers, so the
＋'I Cleaning is troublesome and requires a long time to clean.

In addition, the cleaning device described above separates the frame equipped with (1) the kimono peeling mechanism and (1) the frame equipped with the kimono removal and extraction mechanism from the end of the tube to the other end. Because the device is structured to move in the opposite direction, cleaning is more troublesome and takes a long time to clean.

(L1 aspect of the invention) The first object of the present invention is to provide a pipe cleaning device that does not require the use of lobes, allows easy cleaning work, and can clean the inside of a pipe in a short time.

Another object of the present invention is to be able to remove the peeled deposits while peeling off the deposits, making cleaning work easier;
To provide a pipe interior cleaning device capable of cleaning the interior of a pipe in a shorter period of time.

(Structure of the Invention) The cleaning device of the present invention cleans the inside of a pipe whose hollow section has a circular cross-sectional shape! A frame, means for contacting the inner surface of the tube and supporting the frame 1/-;
a rotating body rotatably supported around the central axis of the frame; a drive source for rotating the rotating body;
supported by the rotating body so as to be rotatable around an axis inclined with respect to the central axis of the tube, contacts the inner surface of the tube at least when the rotating body rotates, and generates a thrust along the central axis of the tube; and means for peeling deposits on the inner surface of the tube from the tube.

In another cleaning device of the present invention, the rotating body includes a rotating shaft having a hollow portion, which is rotatably supported by the frame around the central axis of the tube and rotated by the drive source; a head fixed to one end; a boss movably supported by the head in a diametrical direction of the tube; a support shaft rotatably supported by the boss and supporting the 1111 peeling r stage; means for maintaining the posture of the boss in a state where the support shaft is inclined with respect to the central axis of the tube; a guide having a passage for guiding the receiver into the hollow part of the rotating shaft, the frame has a space around the rotating shaft communicating with the hollow part, and the pipe cleaning device includes:
The apparatus further includes a means for suctioning detached deposits, and a pipe communicating the space and the suction means.

(Effects of the Invention) In the cleaning device of the present invention, the stripping means is rotatably supported by the rotating body around an axis inclined with respect to the central axis of the pipe,
In addition, since it contacts the inner surface of the tube, when it is rotated around the central axis of the tube as the rotating body rotates, it is rotated while contacting the inner surface of the tube. At this time, a reaction force due to the rotation of the peeling means is applied to the frame, but the frame does not rotate because the reaction force is canceled out by the contact resistance between the frame support means and the tube. For this reason, the peeling means is in contact with the inner surface of the tube while
It rotates about an axis that is inclined to the central axis of the tube and moves helically around the central axis of the tube, thereby generating a thrust that moves the tube forward or backward.

Further, the A.1 kimono on the inner surface of the tube is peeled off from the inner surface of the tube by the peeling means moving while being in contact with the inner surface of the tube.

As described above, according to the cleaning device of the present invention, since the device peels off the old R1 material while transporting it by itself, there is no need to use a robe, and the cleaning work is easy. Furthermore, since the peeling means generates a force while peeling off the garment, there is no need to provide a special mechanism for lees advancement, and the apparatus becomes simple.

In another cleaning device of the present invention, the detached deposits are sucked into the suction means. Therefore, according to the present invention, it is possible to remove the peeled off clothes while also peeling off the clothes, making the cleaning work easier and making the inside of the pipe more clean! i
Can be cleaned in between.

(Example) Embodiments of the present invention shown in the drawings will be described below.

Cleaning as shown in Figure 1! Pipe 12 cleaned by A station 10
The cross-sectional shape of the hollow part is circular. Cleaning equipment v10 is
It includes a bobbin-like frame 14 that is disposed within the tube 12 along the central axis of the tube 12 during cleaning.

The flange 7i 14 includes a cylindrical portion 16, flanges 18.20 extending outward from both ends of the cylindrical portion, and a pair of annular walls 22 extending circumferentially in rows 4L from the cylindrical portion 16 along its inner surface.
Equipped with. The cylindrical portion 16 is arranged within the tube 12 such that its central axis ascends or coincides with the central axis of the tube 12. The walls 22 are separated from each other in the direction of the central axis of the cylindrical portion 16, and together with the cylindrical portion 16 define an annular space 24 along the inner surface of the cylindrical portion. The space part 24 is the cylinder part 1
A U-shaped cross-sectional shape 41 extending from 1-1 is placed inside 6.

Support wheels 26, 28 for supporting the frame 14 are mounted on opposite sides of the lower part of the flange 18, 20 by shafts 30, 32 and brackets 34, 36, respectively. There is. Each wheel 24.26 is
It is rotatable around an axis that is parallel to the tangent of the contact point of the twelve wheels. Each wheel 24,26 is also spaced apart circumferentially on the inner surface of the tube 12, with one wheel 24 shown in FIG.

A bracket 38 is attached to the L portion of the flange 18, and a shaft 40 extending horizontally in a plane perpendicular to the central axis of the cylindrical portion 16 is supported on the bracket. The lever 42 is rotatably supported around the central axis of the shaft 40 in a plane parallel to the central axis of the cylindrical portion 16 and extending toward the lower blade. The lever 42 has a piece 42a
The piece 42b extends parallel to the central axis of the cylindrical portion 16 toward the flange 20, and the piece 42b extends downward.
It is supported on the shaft 40 at the intersection of a and 42b.

A shaft 44 is supported on the piece 42a of the lever 42 in parallel with the shaft 40, and a suppression wheel 46 is rotatably supported on the shaft 44. One end of a spring 48 is locked to the piece 42b. Spring 48 is a tension coil spring and has its other end engaged with frame 14. For this reason, the wheel 46 is pressed against the inner surface of the tube 12, and thus the wheel 26.28 is also pressed against the inner surface of the tube 12. As shown in FIG. 2, the wheels 26, 28, and 46 are preferably arranged so that each of them is located at a corner of an equilateral triangle or a hitomi side triangle when viewed from the left side of FIG.

The cleaning device 10 also includes a rotating shaft 50 that passes through the cylindrical portion 16 along its central axis. The rotating shaft has a plurality of bearings 5.
2 is rotatably supported around the central axis of the cylindrical portion 6. The rotating shaft 50 has a hollow portion 54 extending in the direction of its central axis, and the hollow portion opens into the space 24 at a location on the side of the second flange 20, and at a location forward of the flange 18, the diameter of the rotating shaft 50 extends. Open outward.

A head 56 is fixed to the tip of the rotating shaft 50 with a key 58 and a nut 60. The head 56 is shown in FIG.
As shown in FIG. 3, it is made of a rectangular thick plate member. As shown in FIG. 3, a pair of six holes 62 are bored in the head 56 at locations symmetrical with respect to the central axis of the rotating shaft 50. As shown in FIG. The holes extend parallel to each other in the diametrical direction of the tube 12 in a plane orthogonal to the central axis of the rotating shaft 50, and penetrate from one side of the head 56 to the other.

As shown in FIG. 3, a sliding shaft 64 having a stopper flange is slidably inserted into the hole 62 from opposite sides. A post 66 is fixed to each sliding shaft 64 by a nut 68 that is threaded onto the tip of the sliding shaft 64. Each post 66 has a support shaft 7 as shown in FIG.
0 is rotatably supported by a plurality of bearings 72.

The support shaft 70 extends through the post 66 in the direction of the central axis of the rotating shaft 50. A tube 12 is provided at both ends of each support shaft 74.
A sprocket-shaped cutter 76,78 is screwed onto the end of the support shaft 70 to peel off the old kimono 74 on the inner surface of the nara l-8.
It is fixed by 0 and 82.

As shown in FIG. 4, the cutter 74, which is interposed between the post 66 and the flange 18, has a -F body portion 76a like a post.
, a flange-shaped outer circumferential portion 76b extending from one end of the main body portion, and a flange-shaped outer circumferential portion 76b that protrudes diametrically outward from the outer circumferential portion and is peelable.
l! A plurality of pins 76c defining the section. On the other hand, other cutters 78 have a single body part 78 like a post.
a, two flange-shaped outer peripheral parts 78b and 78c extending from both ends of the main body, and a double-ringed pin 78d that projects diametrically outward from the outer peripheral part and defines a peeling part.

78e. Diameter of peeling part of cutter 76.78,
In other words, when the cutter is rotated, the diameter of the circle drawn by the tip of Pip) is the maximum of Pip) 76c and Pip) 78
e is the minimum. Note that the cutters 76 and 78 are
Instead of 76c, 78d, and 78e, they may be brush-shaped with a large number of nail-like bodies.

A guide 84 is fixed with a key 86 at a location between the head 56 of the rotating shaft 50 and the flange 18 . The guide 84 is connected to the cutter 76 as shown in FIGS.
．． Two passages 88 receive the deposits 74a peeled off by 78 and guide them to the hollow part 54 of the rotating shaft 5o.
has. The passage 88 extends in the radial direction of the rotating shaft 50,
It also opens 1-1 in the hollow portion 54 and opens 11 rearward in the direction of rotation of the cutter 76.

The guide 84 has a cutter 76.7 as shown in FIG.
The so-called deflection angle θ1 between the plane of rotation of 8 and a plane perpendicular to the axis of rotation 50 and the central axis of the tube 12, that is, the axis of rotation 5
A control mechanism 90 is connected to change the angle 02 between the central axis of the support shaft 70 and an axis parallel to the central axis of the tube 12 and to maintain the angle 02 constant.

Although the control mechanism 90 is a so-called hydraulic jack operated by oil pressure in the illustrated example, it may be another type of -L stage such as a so-called electric screw jack operated by electric power. The piston rod 92 of the jack is connected to the guide 84 by a port 94, and the cylinder 96 is connected to the post 66 via a lugs 98 supported on spherical bearings at the rear of the cylinder. The end of the 98 is the post 66.
The spherical head of the other end is supported by the spherical bearing described in 1tii. Although not shown, the control mechanism 90 is connected to a source of oil or air for operation. The control mechanism 90 sets the angles O1 and θ2 to 0 by protruding or retracting the piston rod 92 and the cylinder 96.
Change it to any value on the plus side (the side where the device moves forward) and the minus side (the side where the device 10 moves backwards) centering on
Can be set.

A rotating shaft 5 is provided on the side of the flange 20 opposite to the flange 18.
A driving source 100, such as a motor, which rotates the motor 0 is supported by a plurality of poles 102. Further, on the side of the flange 20 opposite to the flange 18, a plurality of wheels 10 are provided.
A truck 106 supported by 4 is connected, and a suction mechanism 108 such as a dust collector is mounted on the truck. The suction mechanism 108 is communicated with the space 24 of the cylindrical portion 16 through a pipe 110. Although the cart 106 is fixed to the flange 20 by a port 112 in the illustrated example, it may be connected by other connection means. Also, trolley 10
6, a suction mechanism 108 may be mounted on the frame 14.

During cleaning, the device 10 is placed in the tube 12 with the cutters 76, 78 at the front and the suction mechanism 108 at the rear. Next, after the angles θI and θ2 are set to arbitrary values on the positive side by the control mechanism 90, the drive source 100 and the suction mechanism 108 are activated. As a result, the rotating shaft 50, the head 56, the boss 66, the cutters 76, 78, and the guide 84 are rotated around the central axis of the cylinder portion 16 and the tube 12.

Since the sliding shaft 64 is slidable relative to the head 56 in the diametrical direction of the tube 12, when the force cutter 76, 78 is rotated about said central axis, the cutter 76. Pressed inward. This is the up cutter 76
．． 78 is '! ? 12 or the deposit 74,
The friction of the contact between the cutters 76 , 78 and the tube 12 causes the cutters 76 , 78 to rotate about the support axis 70 . It should be noted that a spring or jack may be placed between the head 56 and the boss 66 to urge the cutters 76, 78 toward the inner surface of the tube 12. The spring has, for example, a head 562 nibose 66
and can be arranged around the sliding axis 64.

Further, the support shaft 70 is inclined by 1 with respect to the central axis of the rotation shaft 50.
．． Therefore, when the cutter 76.78 is rotated around the support shaft 70 and around the central axis of %12,
The cutters 76, 78 move helically around the central axis of the tube 12. This causes the cutters 76, 78 to generate a 4'IF force in the direction of the central axis of the tube 12. Cleaning device 1
The speed and direction of propulsion of 0 can be changed by changing the angles O2 and θ2 using the control mechanism 90.

The deposit 74 is removed by the bits 76 c , 78 d , 78 e of the cutter 76.78 by moving the cutter 76.78 helically around the central axis of the tube. The peeled off deposit 74a is sucked into the suction mechanism 108 through the passage 88, the hollow portion 54, and the pipe 110.

According to the cleaning device 10, the cutters 76, 78 are attached to the support shaft 70.
For propulsion by moving helically around the central axis of the tube 12 while being rotated about the
There is no slippage between the cutters 76, 78 and the inner surface of the tube 12,
Therefore, there is no risk of scratches on the inner surface of the tube 12. Furthermore, when the rotational speed of the drive source lOO is increased, the cutter 76.
78 increases the impact force of 1fti applied to the deposit 74, and improves the peelability of the deposit 74.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the cleaning device of the present invention, Fig. 2 is an end view taken along line 2-2 in Fig. 1, and Fig. 3 is a cross-sectional view taken along line 3-3 in Fig. 1. FIG. 4 is a cross-sectional view taken along line 4--4 in FIG. IO: Cleaning bag Pi, 12: Pipe, 14: Frame, 24: Space, 26, 28
: Support wheel, 46: Pressing wheel, 50: Rotating shaft, 54: Hollow part, 56: Head, 64: Sliding shaft, 66: Boss, 70: Support shaft, 76.78: Cutter, 84 Ni guide , 88 two passages, 100: drive source, 108: suction mechanism, 110: pipe, 76c, 78d, 78e: bi,, 1. Agent Patent Attorney Nobuyuki Matsunaga Figure 2 Unexamined Patent Publication +13G2-294479 (7) Figure 3 12~.・ ゝ＼ ) 9゜7゜, = Japanese T sashijn mountain Figure 4 7 苧b ″zukeffl ′I (Oshiri 2b

Claims (4)

[Claims] (1) An apparatus for cleaning the inside of a pipe whose hollow part has a circular cross-sectional shape, comprising: a frame; means for contacting the inner surface of the pipe and supporting the frame; a rotating body rotatably supported; a drive source for rotating the rotating body; An apparatus for cleaning the inside of a pipe, the apparatus comprising means for contacting the inner surface of the pipe, generating a thrust along the central axis of the pipe, and peeling deposits on the inner surface of the pipe from the pipe. (2) The pipe cleaning device according to claim (1), wherein the peeling means is a cutter having a plurality of bits projecting diametrically outward from an outer peripheral portion thereof. (3) An apparatus for cleaning the inside of a pipe whose hollow part has a circular cross-sectional shape, the apparatus comprising: a frame; means for contacting the inner surface of the pipe and supporting the frame; a rotating body rotatably supported; a drive source for rotating the rotating body; means for contacting the inner surface of the tube to generate a thrust along the central axis of the tube and peeling deposits on the inner surface of the tube from the tube, and the rotating body a rotary shaft having a hollow portion that is rotatably supported around an axis and rotated by the drive source; a head fixed to one end of the rotary shaft; and a head that is movable in the diametrical direction of the tube. a boss rotatably supported; a support shaft rotatably supported by the boss and supporting the peeling means; and means for maintaining the attitude of the boss in a state where the support shaft is inclined with respect to the central axis of the tube. and a guide fixed to a location between the head of the rotating shaft and the frame, the guide having a passage for receiving peeled deposits and guiding them to the hollow part of the rotating shaft, the frame comprising: The pipe cleaning device has a space around the rotating shaft that communicates with the hollow part, and the pipe cleaning device further includes a means for sucking detached deposits, and a pipe that communicates the space and the suction means. Including pipe cleaning equipment. (4) The pipe cleaning device according to claim 3, wherein the boss is attached to a sliding shaft that is slidably supported by the head in a diametrical direction of the pipe.