JPH03180625A - Water bottom surface cleaning device - Google Patents

Abstract

PURPOSE:To improve efficiency by installing a vertical frame housing a rotary shaft rotated by a hydraulic motor to the lower face of a bracket of the tip of an arm, and projecting plural cleaning wires outwardly from a drum provided on the lower face of the vertical frame. CONSTITUTION:A cleaning device 9 is composed of a bracket 10, a vertical frame 1, a drum rotatably installed to the lower face of the frame 11, and plural elastic cleaning wires 13. Further, a rotary shaft 18 in the frame 11 is connected to the output shaft 20 of a hydraulic motor 17 fixed on the horizontal plate part 10b of the bracket 10. A barge is positioned at a specified place, the body 9 is submerged, the motor 17 is rotated to rub and clean the seabottom surface with the wires 13, and the barge is then moved to repeat operations. The seabottom surface can thus be efficiently cleaned for uncleaned places not to be left.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a device for cleaning the bottom surface of the sea or river, and more specifically, 1. Concerning cleaning equipment.

(Prior art) Fishing reefs used for kelp cultivation are preferably cleaned by cutting the surfaces of rocks, bedrock, etc. during cultivation.When cleaning relatively shallow waters, conventionally, the reefs used for kelp cultivation are cut with a bucket of a hydraulic excavator. Or.

Alternatively, this was done by using small-scale dynamite to blow up bedrock, etc. In addition to the above-mentioned dynamite, in places where the depth of water is 2 m to 3 m, cleaning was carried out by suspending chains or the like from ships and bonds.

(Problem to be Solved by the Invention) However, when cutting with a packet or chain of a hydraulic excavator, there is a problem in that cleaning is likely to be omitted when the seabed surface is uneven. Additionally, cleaning with dynamite is not only dangerous, but also susceptible to weather and tides.

In view of the above-mentioned problems, the present invention cleans the underwater bottom surface such as the seabed in a good and even manner regardless of the shape of the underwater bottom surface.
Moreover, it is an object of the present invention to provide an underwater bottom surface cleaning device that can be efficiently cleaned and that does not pose any operational hazards.

(Means for Solving the Problems) In order to achieve this objective, the underwater bottom surface cleaning device of the present invention has the following features:
A bracket is pinned to the tip of the arm of the work equipment so that it can swing freely in the front and back direction, a hydraulic motor is attached to the bracket, and a vertical frame containing a rotation shaft rotated by the hydraulic motor is attached to the bottom surface of the bracket. A drum coupled to the rotating shaft is attached to the lower surface of the vertical frame, and a plurality of cleaning wires are attached to the drum so as to protrude outward.

(Function) Since the water bottom surface scraping device of the present invention has the above-mentioned structure,
The arm is lowered and brought into contact with or close to the bottom surface of the tram, the drum is rotated by rotating a hydraulic motor attached to the bracket, and the bottom surface is rubbed with a cleaning wire attached to the drum to clean it.

(Example) The details of the present invention will be explained below with reference to the drawings. FIG. 1 is a side view showing an embodiment of the underwater bottom surface cleaning device according to the present invention in a working state, where l is a barge and 2 is an example of a working machine as a base machine mounted on the barge 2. It's a shovel. The hydraulic excavator 2 has a boom 4 attached to a revolving body 3 so as to be able to rise and fall freely using a boom cylinder 5, an arm 7 that is rotatably attached to the tip of the boom 4 using an arm cylinder 6,
A packet (
(not shown) is attached so that it can swing back and forth, but in this embodiment, a cleaning device main body 9 is attached instead of the packet.

The cleaning device main body 9 includes a bracket lO, a vertical frame 11 coupled to the bottom thereof, and a drum 12 rotatably attached to the bottom of the vertical frame 11.

It consists of a plurality of elastic cleaning wires 13 made of steel wires, synthetic resin wires, etc., which are attached downwardly or at an angle from the drum 12. The bracket 10 is attached with a pair of upwardly protruding vertical plates 10a sandwiching the tip of the arm 7 and connected by a pin 14, and the other end is connected to a link 15 connected to the packet cylinder 8 by a pin 16. When the packet cylinder 8 expands and contracts, the cleaning device main body 9 swings back and forth.

FIG. 2 is a partially cutaway side view showing details of the cleaning device main body 9, and the bracket lO is attached to the horizontal plate portion 10b.
Two vertical plates 10a are fixed by welding or the like, and a hydraulic motor 17 is fixed to a portion of the horizontal plate 10 sandwiched between the vertical plates 10a 718.

A vertical frame 11 is fixed to the lower surface of the horizontal plate portion tab by welding or the like. The vertical frame 11 has ribs 11b radially formed around a cylindrical body 11a, and a flange llc is fixed to the lower surface by welding or the like.

A rotating shaft 18 is built into the vertical frame 11. The rotating shaft 18 has a male threaded portion 18a at the upper end connected to an output shaft 20 of the hydraulic motor 17 with a bolt 21 and a detent key 22.
It is screwed and connected to the female threaded cylinder 23 connected by.

Further, the one-rotation shaft 18 is rotatably supported by bearings 24 and 25 at two upper and lower locations in the vertical frame 11, and the lower part of the bearing 25 is connected to the cylindrical body 11a of the vertical frame 11 by a bolt 26. A ring 27 prevents removal.

The hydraulic motor 17 is watertightly attached to the horizontal plate part tab of the bracket 1O by a sealing material 28, and a sealing material 29 for sliding the rotating shaft 18 is also attached to the holding ring 27, so that the vertical frame The inside of 11 has a watertight structure, and inside 1 cylindrical body 11a,
Lubricating oil.

The oil is supplied via a refueling hose (not shown) connected to the joint 30.

The drum 12 includes an upper drum 31 and a lower drum 32. The upper drum 31 consists of a coupling body 33 to the rotating wheel 18, a cylindrical part 34 fixed to the coupling body 33 by welding, bolting, etc., and a flange part 35 on the lower surface of the cylindrical part 34. A rib 36 is fixed to the inner surface of 34.

The coupling body 33 has a central tapered cylindrical portion a fitted to a lower tapered portion of the rotating shaft 18 via a detent key 37,
A washer 38 fitted to the male thread b at the lower end of the rotating shaft 18 is applied to the lower surface of the cylindrical portion a, and tightened by a nut 39 screwed onto the male thread b. Further, the outer periphery of the combined body 33 has a flange C, and an O-ring 40 for sealing is interposed between the flange C and the flange llc at the lower end of the vertical frame 11.

On the other hand, the lower drum 32 consists of a gently sloped part d and a steeply sloped part e above it, and has ribs 41 fixed to its inner surface. A ring 42 for protecting the cleaning wire 13 is fixed to the outer peripheral surface of the drum 32 by welding or the like in an outwardly downwardly tapered position. A circular projection 43 with a sharp tip for protecting the wire 13 is fixed. The lower drum 3
A flange 46 is fixed to the upper surface of the upper drum 2 to be detachably connected to the flange 35 of the upper drum 31 with bolts 44 and nuts 45.

FIG. 3 shows the arrangement of the through-holes 47 for inserting and attaching the wire 13. In the gently sloped portion d, a plurality of through-holes 47 are arranged radially in each row, i, j. Look, m
, n so that the distances from the protrusion 43 are different, and the wire rods 13 are attached in different radial positions. In addition, the steeply sloped portion e is formed by the through holes 47 in each row.
are arranged alternately so that the positions of adjacent columns are different.

FIG. 4 shows an example of the structure for attaching the cleaning wire 13, in which a steel wire or synthetic resin wire is bent into an inverted U shape, inserted into a through hole 47, and a bolt 49 passed through a rib 41. The bent portion of the cleaning wire 13 or its vicinity is fixed to the rib 41 by a fixing fitting 48 (or by inserting a bolt 49 through a hole in the fixing fitting and screwing it into a nut). In this structure, the outward protrusion length of the cleaning wire 13 can be adjusted by loosening the bolt 49 and pulling up the cleaning wire 13 as shown by the two-dot chain line p.

In FIG. 5, in order to prevent the cleaning wire 13 from being pushed inward when an impact is applied to the cleaning wire 13, the upper end of the fixing fitting 48 is bent, and the cleaning wire is The top of the number 13 is pressed down.

When cleaning fishing reefs etc. using this device, as shown in Figure 1, one boat l is positioned at a predetermined location as a fishing reef,
Boom 4. Lower the arm 7 to submerge the cleaning device main body 9, operate the hydraulic motor 17 to rotate the drum 12,
The cleaning wire 13 rubs and cleans the seabed surface W. Further, by tilting the cleaning main body 9, it is also possible to perform cleaning on an inclined surface. After cleaning a predetermined area, the barge 1 is moved and the work is repeated.

Here, since the cleaning wire 13 is attached in an inclined position in the steeply sloped part e of the lower drum 32, even if the seabed surface is sloped, the cleaning wire 13 can clean the slope or the side surface of the rock. can.

Also, during the cleaning work, the ring 42 and the protrusion 43
By contacting rocks and bedrock on the seabed surface, the rocks and bedrock are prevented from contacting the root portion of the cleaning wire 13 and breaking or cutting the cleaning wire 13.

If the clear H wire rod 13 becomes worn out over time and needs to be replaced, uncouple the flanges 35 and 46 with the bolts 44 and nuts 45, remove the lower drum 32 from the upper drum 31, and replace the bolts. 49, pull out the old cleaning wire 13 upward, and attach a new cleaning wire 13. In this mounting structure, since the curved upper part of the cleaning wire 13 is fixed by the fixing fitting 48 and the bolt 49, the cleaning wire 13 does not fall down while being supported by the through hole 47, and is relatively stable. Easy to install.

The present invention can be used to clean not only the seabed surface but also the bottom surface of rivers, lakes, and the like.

(Effects of the invention) According to claim 1, since the tram is rotated and the cleaning wire attached to the drum is used to scrape the bottom surface of the water, compared to the case where cutting is performed using a packet or chain of a conventional hydraulic excavator, If there are irregularities on the seabed, it can be cleaned evenly and reliably without causing any cleaning leakage, and it does not involve the dangers of using dynamite.
It is not affected by weather or tides.

Furthermore, the length of the vertical frame makes it possible to clean relatively deep areas, allowing the use of a small-sized working machine.

According to claim 2.3, due to the presence of the ring on the outer periphery of the drum and the protrusion at the center, rocks on the bottom surface of the water do not come into contact with the base of the cleaning wire, and breakage of the cleaning wire can be prevented.

According to claim 4, the tram is provided with a through hole, and the curved portion of the cleaning wire formed in an inverted U shape or its vicinity is fixed to a rib on the inner surface of the drum with a fixing fitting and a bolt, and the wire is Since the wire is inserted through the hole, the wire is firmly supported by the hole in the drum wall, and installation is easy.

According to claim 5, the cleaning wire can be replaced by dividing the drum and removing the lower column from the upper drum, which facilitates the cleaning work.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the underwater bottom surface cleaning device according to the present invention in a working state, FIG. A bottom view for explaining the arrangement, and FIGS. 4 and 5 are perspective views showing an example of the mounting structure of the cleaning wire.

Claims (1)

[Claims] 1. A bracket is pinned to the tip of the arm of the working machine so that it can freely swing back and forth, a hydraulic motor is attached to the bracket, and a rotating shaft rotated by the hydraulic motor is attached to the bottom surface of the bracket. A vertical frame with a built-in is attached, a drum coupled to the rotating shaft is attached to the lower surface of the vertical frame, and a plurality of elastic cleaning wires are attached to the drum so as to protrude outward. Characteristic underwater bottom surface cleaning device. 2. The underwater bottom surface cleaning device according to claim 1, wherein a ring for protecting the cleaning wire is provided around the entire circumference of the drum. 3. The underwater bottom surface cleaning device according to claim 1, wherein a projection is provided at the center of the lower surface of the drum. 4. A through hole is provided in the drum, and a cleaning wire bent into an inverted U shape is fixed at or near the bent portion to a rib on the inner surface of the drum with a fixing fitting and a bolt, and the wire is inserted through the through hole. The underwater bottom surface cleaning device according to claim 1, characterized in that: 5. dividing the drum into an upper drum that is removably connected to the rotating shaft and rotatably contacts the lower surface of the vertical frame; and a lower tram that is removably connected to the upper drum;
2. The underwater bottom surface cleaning device according to claim 1, wherein the cleaning wire is attached to the lower drum.