JP2007284987A - Sea baserock adhered object removing attachment and sea baserock adhered object removing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sea baserock adhered object removing attachment for back hoe capable of removing lime, algae, etc. adhered to a sea baserock evenly and suppressing quantity of sea baserocks crushed at the time and to provide a sea baserock adhered object removing device using this attachment. <P>SOLUTION: A rotary head 5 of the attachment 3 mounted on a boom 2a of the submerged back hoe 2 is rotated, and a wire rope constituting a wire brush 8 comes into contact with the baserock R repeatedly so that twisted strands are gradually released and are formed like a brush to remove the object such as coral, algae, etc. adhered to the baserock R by following recessed and projecting parts on the baserock R closely. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an underwater bedrock deposit removal attachment and an underwater bedrock deposit removal device, and more specifically, removes lime algae such as coral algae, weed algae, etc. adhering to the underwater bedrock without any unevenness. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater bedrock removal attachment for a backhoe that can reduce the amount of underwater bedrock that can be cut into a seabed, and an underwater bedrock removal apparatus using this attachment.

  In recent years, so-called burnt burning in which coral algae and other lime algae adhere to the bedrock in the sea has become a major problem. Since the burned rock mass is covered with calcareous material, seaweed spores cannot be attached and seaweeds will not propagate. Along with this, it becomes difficult for fish and shellfish to live in, causing a problem that the environment as a fish farm deteriorates.

  Conventionally, a flexible steel rod is assembled radially to the rotating head as a countermeasure against burning, and this is made into an attachment structure of an underwater backhoe, and the rotating head is rotated to remove the deposits of coral algae and weed algae attached to the bedrock. A removal method has been proposed (see Patent Document 1). By using this proposed attachment, it is possible to remove deposits without unevenness by simply shaving only the surface of the rock.

However, since the shaving pieces on the rock surface are scattered around, the spores of new seaweeds adhere to the shaving pieces, so that they are washed away with the shaving pieces, and the seaweeds are difficult to propagate. Therefore, in order to prevent scattering of the shaving pieces, it is necessary to provide a special suction device for sucking the shaving pieces as proposed in Patent Document 1.
JP 2001-220725 A

  An object of the present invention is to remove lime algae and the like adhering to the underwater rock so that there is no unevenness, and to reduce the amount of the underwater rock to be shaved at that time, and an underwater bedrock removal attachment for backhoe and this attachment An object of the present invention is to provide a device for removing deposits from underwater rocks.

  In order to achieve the above-mentioned object, the underwater bedrock removal attachment of the present invention is provided with a rotating head on a base portion attached to and detached from a backhoe boom, and a large number of wire brushes constituted by wire ropes are radially provided on the outer peripheral surface of the rotating head. It is characterized by projecting into

  Moreover, the underwater bedrock deposit removing device of the present invention is characterized in that the underwater bedrock deposit removing attachment described above is mounted on a backhoe boom.

  According to the underwater bedrock deposit removal attachment and the underwater bedrock deposit removal apparatus of the present invention, the wire ropes constituting the wire brush repeatedly come into contact with the bedrock deposits such as bedrock and lime algae, whereby the strands are gradually twisted. It is easier to bend compared to steel rods, and closely follows the irregularities of the rock, and the deposits on the rock can be scraped off and removed so that there is no unevenness.

  In this way, the wire brush (wire rope) follows the irregularities of the rock mass to remove the deposits, so that excessive force is not applied to the rock mass, and the amount of rock mass to be cut during the removal work is minimized. can do. As a result, the rock pieces are not scattered around, and a special device for sucking the pieces becomes unnecessary.

  Hereinafter, the underwater bedrock removal attachment and the underwater bedrock removal apparatus of the present invention will be described based on the embodiments shown in the drawings.

  As illustrated in FIG. 1, the underwater bedrock removal device 1 according to the present invention is configured by mounting the underwater bedrock removal attachment 3 (hereinafter referred to as an attachment 3) of the present invention on a boom 2 a of an underwater backhoe 2. ing.

  2 and 3, the attachment 3 supports a cylindrical rotary head 5 in a cantilever state from a base portion 4 that is attached to and detached from a boom 2 a of the underwater backhoe 2. The rotary head 5 may have a cylindrical shape, or may be another cylindrical body or a columnar body. A hydraulic motor that is driven by a hydraulic system of the underwater backhoe 2 is installed in the base portion 4, and the rotary head 5 is rotated by the hydraulic motor. A large number of wire brushes 8 project radially from the outer peripheral surface of the rotary head 5 for scraping off deposits C such as coral algae and weed algae attached to the rock mass R. The number of wire brushes 8 is, for example, about 80 to 120 and the length is about 20 cm to 50 cm, but is not limited to this range.

  These many wire brushes 8 are arranged in three rows in the circumferential direction on the outer peripheral surface of the rotary head 5, and the wire brushes 8 in each row are arranged displaced in the circumferential direction, so-called staggered arrangement. By arranging the wire brush 8 in this way, the deposit C on the rock mass R can be removed efficiently without unevenness. The arrangement of the wire brush 8 is not limited to that illustrated above.

  As illustrated in FIG. 4, the wire brush 8 is composed of a wire rope 8a in which a large number of strands 8b are twisted and bundled, and a metal sleeve 9 is crimped and fixed to one end portion thereof. As the wire rope 8a, for example, members having various structures defined in JIS G 3525 can be used. For example, IWRC6 × Fi (29) is used as a JIS configuration symbol, and the wire rope 8a The nominal diameter is about 31.5 mm. In addition, the specification of the wire rope 8a which comprises the wire brush 8 is not limited to what was illustrated above, The structure and wire diameter suitable for the conditions of a work site, etc. are selected. If the tip of the wire brush 8 is kept slightly welded and not frayed, the work can be safely performed during storage, movement, and attachment to the rotary head 5, and handling is also improved.

  A holder 6 is provided on the outer peripheral surface of the rotary head 5 so as to correspond to the arrangement of the wire brushes 8, and a metal sleeve 9 at one end of the wire brush 8 is attached to the holder 6. Brushes 8 project radially and are arranged as set. The holder 6 is provided with a mounting bolt 6a. The metal sleeve 9 is attached and detached by tightening and releasing the mounting bolt 6a. Accordingly, the wire brush 8 and the rotary head 5 can be easily attached and detached, and the worn wire brush 8 can be replaced quickly. The attachment / detachment means for the metal sleeve 9 provided in the holder 6 is not limited to the attachment bolt 6a, but may have other structures.

  The base 4 is provided with a stopper 7 that protrudes outward in the radial direction of the rotary head 5. The tip of the stopper 7 is set at a midway position between the root position of the wire brush 8 and the tip position. The position of the tip of the stopper 7 is determined within this range depending on the conditions at the work site, for example, and the position is about 40 to 60% of the protruding length of the wire brush 8.

  For example, the stopper 7 may have a bolt structure that is screwed into a bolt hole provided in the base portion 4, and may be configured to be extendable and contractible so that the protruding length from the base portion 4 can be adjusted. Thereby, the protrusion length of the stopper 7 can be set rapidly according to the work site.

Hereinafter, the removal work of the deposit C on the bedrock R by the underwater bedrock deposit removal apparatus 1 will be described.
By operating the underwater backhoe 2, the rotating head 5 is brought close to the bedrock R to be worked, and the rotating wire brush 8 is repeatedly brought into contact with the deposit C on the bedrock R. When the strand 8b of the wire rope 8a constituting the wire brush 8 is repeatedly brought into contact with the deposit C and the rock mass R, the twist is gradually released and becomes a brush shape. In order to prevent fraying, when the tip of the wire brush 8 is slightly welded, the removal work is started and the wire brush 8 repeatedly contacts the deposit C or the rock mass R, so that the welded portion can be easily formed. It breaks and the strand 8b can be untwisted.

  As a result, the wire rope 8a bends so as to conform to the irregularities of the rock mass R and closely follows the irregularities of the rock mass R, and the wire rope 8a is not easily deformed plastically, so that the wire rope 8a is attached with no irregularities. Kimono C can be scraped from bedrock R.

  Thus, since the wire brush 8 (wire rope 8a) follows the unevenness | corrugation of the rock mass R and removes the deposit C, an excessive force is not added to the rock mass R itself, and the rock mass R which is shaved in the removal work The amount of can be minimized.

  Since the stopper 7 protrudes from the base portion 4 of the attachment 3, when the rotary head 5 is brought closer to the bedrock R than a predetermined distance, the stopper 7 comes into contact with the bedrock R (attachment C). Accordingly, it is possible to prevent troubles such as the base part 4 and the rotary head 5 colliding with the rock mass R and being damaged, and troubles such as crushing the rock mass R on a large scale.

  Further, when the rotary head 5 is moved while the stopper 7 is in contact with the rock R (adhered matter C), the length of the wire brush 8 that contacts the attached matter C can be kept constant. Thereby, the force which removes the deposit | attachment C can be equalize | homogenized, and the stable removal operation | work can be performed.

  The removal work is sequentially performed from the area where the removal work is completed to the next area, and the removal work is performed in the same manner. However, when the removal work is performed at a site where the water depth is shallow, instead of the underwater backhoe 2, a normal backhoe boom is used. It is also possible to work with the attachment 3 attached.

  Since the scraps of the rock mass R are not scattered at the site where the deposit C is removed, new spores of seaweed can adhere to the rock mass R without being blocked by these. Therefore, for example, spores of seaweeds such as seaweed, seaweed, arame, and Honda walla attach to this bedrock R, and it becomes easy to reproduce, and accordingly, a good fish place environment where seafood is easy to inhabit is formed. be able to.

It is a side view which illustrates the underwater bedrock deposit removal apparatus of this invention. It is a side view which illustrates the underwater bedrock deposit removal attachment of FIG. It is the front view which abbreviate | omitted a part of wire brush of FIG. It is explanatory drawing which shows the structure of the wire brush and holder of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Underwater bedrock removal apparatus 2 Underwater backhoe 2a Boom 3 (Underwater bedrock deposit removal) Attachment 4 Base part 5 Rotating head 6 Holder 6a Fixing bolt 7 Stopper 8 Wire brush 8a Wire rope 8b Strand 9 Metal sleeve R Bedrock C Attachment

Claims (5)

  An underwater bedrock removal attachment in which a rotating head is provided on a base portion attached to and detached from a backhoe boom, and a number of wire brushes formed of wire ropes are radially provided on the outer peripheral surface of the rotating head.   A crimped metal sleeve is provided at one end of the wire brush, a holder part to which the metal sleeve can be attached and detached is provided on an outer peripheral surface of the rotary head, and the metal brush is attached to the holder part by attaching the metal sleeve to the holder part. The underwater bedrock deposit removal attachment according to claim 1, wherein the attachment is configured to project radially from the outer peripheral surface of the rotary head.   The underwater rock deposit removal attachment according to claim 1 or 2, wherein a stopper is provided on the base portion, and a tip of the stopper is set at a midway position between a root position and a tip position of the wire brush.   The underwater bedrock removal attachment according to claim 3, wherein the stopper is configured to be extendable.   An underwater bedrock removal apparatus configured by mounting the underwater bedrock removal attachment according to any one of claims 1 to 4 to a boom of a backhoe.

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