JP3059077B2 - Shell removal system on waterway wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for collecting and removing shells on the wall of a waterway.

[0002]

2. Description of the Related Art In a seaside power plant, for example, seawater flows through a cooling water circulating water pipe in order to cool various devices such as a condenser. Impedes smooth flow. Therefore, conventionally, the shellfish attached to the inner surface of the water pipe is removed and collected by using the occasional shellfish collection device. Briefly describing this type of shell removal device, as shown in a plan view of FIG. 4 and a side view of FIG. 5, a vertical thruster cylinder 2 is provided at four front, rear, left and right corners of a flat rectangular box-shaped frame 1. The motor 4 is attached to the upper center of the support frame 3 and the thruster blades 5 are attached to the lower end of the output shaft in the vertical direction. The thruster 5 is rotated in water to move the frame 1 to the channel wall A as shown in FIG. While the drive wheel 7 driven by the internal motor 6 is in contact with the wall surface and is self-propelled, the wall surface is rubbed with the rotating brush 9 below the motor 8 at the center to remove shells. Surround the periphery with a skirt 10 and collect the pump 1
The first suction side hose 12 is inserted and collected.

[0003]

However, there are the following problems in the shell removal device having this kind of structure. (1) Since the rotating brush 9 is provided between the wheels 7, 7, the shell removal performance is poor, and the shell removal cannot be performed particularly well at a bent portion. That is, if there is a shellfish firmly attached regardless of the plane portion, the front wheel rides over the shell and the brush does not reach, and the shell of FIG.
In the concave surface shown in (1), the rotary brush is separated from the ground surface of the wheel by the distance b, so that the rotary brush is left behind. (2) Poor recovery rate of shellfish removed. This is because the thruster in front of the rotating brush winds up the shell with a weak adhesive force, and the shells crushed by the front wheels cannot be collected. As a result, the downstream plant is adversely affected.

[0004] The present invention has been proposed in view of the above-mentioned circumstances, and it is possible to eliminate the remaining shells in the concave portions of the waterway wall surface and to prevent the shells from being removed in the convex portions, and to reduce the possibility of shellfish crushed and floated by the front wheel. It is an object of the present invention to provide a high-performance and economical shell removal system capable of increasing the recovery rate.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a water channel wall shell removal apparatus comprising: a flat rectangular frame; and a vertical direction frame formed at each corner of the frame. Vertical thrusters supported in the thruster holes, wheels arranged in close proximity to the respective thrusters, wheel driving motors for driving the respective wheels, and arms protruding from the front end of the frame. A pair of left and right rotating brushes supported at the front end of the rotating brushes, a rotating brush driving motor for driving the rotating brushes, an up-down pressing mechanism for vertically pressing the rotating brushes against a channel wall surface, and the rotating brushes. A back-and-forth tilting mechanism for tilting along the water channel wall surface and scraped off from the water channel wall surface by the pair of right and left rotary brushes supported by the casing of the rotary brush driving motor. A hood that sucks shellfish that has been sucked, and a lower end suction port is connected to the hood, and the upper side extends through a pump fixed to the upper part of the frame, the rear end extends to the outside of the waterway, and the shellfish sucked from the hood with water It is characterized by comprising a hose for discharging to the outside of the water channel and a cable for supplying electric power to each of the motors.

[0006]

According to such a structure, the following operations are performed. (1) By the suction action of the vertical thrusters supported in the vertical thruster holes formed in the respective corner portions of the frame, the suction force on the wall surface can be stably obtained at four corners in a well-balanced manner. The wheels arranged in close proximity to each thruster do not slip due to the action of the wall removed by the pair of left and right rotating brushes supported at the front end of the arm protruding from the front end of the frame, and the frictional force is reduced. Is obtained, and this shell removal device is run strongly. (2) In particular, like the wall surface of the bent portion in FIG. 3, the rotating brush is pushed up and down by + f on the convex surface C inside the extension of the wheel grounding surface by an up-down pressing mechanism that presses the rotating brush up and down against the channel wall surface. On the outer concave surface, the rotating brush is moved by up and down by -f in the vertical direction, and the rotating brush is tilted along the wall of the water channel. The rotating brush is automatically tilted by the pressing force, so that the rotating brush is imitated in the normal direction to the wall surface. As a result, complete shelling can be stably performed. Further, a hood supported by the casing of the rotating brush driving motor and for sucking shells scraped off from the wall of the water channel by the pair of left and right rotating brushes, a lower end suction port is connected to the hood, and an upper side is located above the frame. A hose that extends to the outside of the waterway through a fixed pump and discharges shellfish sucked from the hood to the outside of the waterway together with the water is used to efficiently collect the shellfish that has been removed while scraping the shellfish.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall plan view, FIG. 2 is a vertical sectional side view taken along the line II-II of FIG. 1, and FIG. FIG. 5 is a horizontal sectional view showing a state in which the shelling and collecting apparatus according to the present invention is collecting and shelling a convex curved wall portion and a concave curved wall portion of a curved portion of a waterway having a circular cross section.

The device of the present invention is significantly different from the structure of the conventional shell removal device shown in FIGS. 4 and 5 in that a pair of left and right rotating brushes are provided at the center of a flat rectangular frame instead of at the center. And that the rotary shaft of the rotary brush is vertically movable instead of being fixed vertically, and is supported by the frame so that it can be tilted forward and backward. The hood of the hose inlet is also located at the front end of the frame.

First, in FIGS. 1 and 2, the same reference numerals as those in FIGS. 4 and 5 denote the same members and equipment as those in FIGS. 4 and 5, respectively, and 1a denotes a shell removal device frame, which is a flat rectangular main body. Frame 1a (hereinafter referred to as frame) is shown in FIG.
5 and 5, the pair of left and right rotating brushes 9 at the center of FIGS. 4 and 5 is located at a position immediately before the front end of the frame 1a as described later in the present invention. It is arranged. Thruster cylinder 2, support frame 3,
The arrangement positions of the thruster motor 4, the thruster blades 5, the wheel motors 6, and the wheels 7 are the same as those in FIGS.

Here, the brush motor 8a of each rotary brush 9a is connected to a clevis 15 projecting from the center of the front end of the frame 1a by a front end of a forward extending link 17 whose base end is pivotally supported via a horizontal pin 16. Left and right brush motors 8a
The central portion of a horizontal connecting shaft 20 for connecting the casings is supported via a bearing 19, and the central portion of the link 17 is vertically extended and contracted to the front end of an arm 13 extending forward and upward from the front end of the upper surface of the frame. The lower end of the movable rod of the machine 14 is supported via a horizontal pin 18. Therefore, the hood 21a at the tip of the suction / discharge hose 12a is disposed immediately above the line connecting the front ends of the left and right rotating brushes 9a.

According to the structure of the embodiment, the following operation is performed. (1) By the suction action of the thruster blades 5, the suction force to the wall surface can be obtained stably in four corners in a well-balanced manner, and the wheel 7 does not slip due to the action of the wall surface removed by the front brush, and the friction force is sufficient. The resulting shell removal device is run strongly. (2) In particular, on the wall surface of the bent portion of the water channel as shown in FIG. 3, only + f is applied to the convex surface C inside the extension of the wheel contact surface, and -f is applied to the concave surface outside, by the vertical pressing mechanism F attached to the front. The brush 9a moves in the vertical direction and follows the same, and is automatically inclined by + g in the former and -g in the latter by the forward / backward tilting mechanism G so that the brush 9a follows the wall surface in the normal direction. As a result, complete shelling can be performed stably and the above-mentioned problem (1) is solved. Further, the shells that have been shelled are rotated on the center line by rotating the left and right rotating brushes 9a in opposite directions and rotating them inward. The action of gathering works, and the suction and discharge hoses 12a at the upper center thereof efficiently collect the water, so that the problem (2) is solved.

In the above embodiment, the pair of left and right rotating brushes 9a can be moved in the vertical direction and / or rotated around the horizontal axis immediately before the front end of the frame via the vertical pressing mechanism F and the front and rear tilting mechanism G. Thus, the characteristics of this type of conventional device have been greatly improved, but the major feature of the present invention is that the rotating brush 9a is moved vertically and / or around the horizontal axis by the vertical pressing mechanism F and / or the forward / backward tilting mechanism G. Is slightly movable. Therefore, the rotary brush 9a can be arranged at the center of the frame as in the prior art shown in FIGS. 4 and 5, and attached at this installation position via the vertical pressing mechanism F and / or the forward / backward tilting mechanism G. The effect is achieved, and the size and weight can be reduced.
Furthermore, in the structure of FIGS. 4 and 5, even if the left and right rotating brushes 9a are simply rotated in the opposite directions, the effect of collecting shellfish peeled off from the wall is increased.

According to such a shell removal system, the following effects can be obtained. (1) As shown in Fig. 3, in addition to the inner and outer uneven surface such as a bent portion of a water channel, or an inclined surface that shifts from the horizontal, a shelling operation in a place where the shelling was previously insufficient was perfectly performed. . (2) The recovery rate of shellfish that has been removed is almost 100%, so that adverse effects on downstream plants can be completely prevented. (3) Two or more shell removal brushes can be attached, and the cleaning efficiency is improved.

[0014]

According to the apparatus for collecting and removing shells of a waterway wall according to the present invention, the following effects can be obtained. A flat rectangular frame, a vertical thruster supported in a vertical thruster hole formed in each corner of the frame, wheels arranged in close proximity to the thrusters, A wheel driving motor for driving wheels, a pair of left and right rotating brushes supported at the front end of an arm protruding from the front end of the frame, a rotating brush driving motor for driving each of the rotating brushes, A vertical pressing mechanism that presses the brush vertically against the waterway wall,
A hood for tilting the rotating brush along the water channel wall surface, a hood supported by a casing of the rotary brush driving motor and sucking shells scraped off from the water channel wall surface by the pair of left and right rotary brushes; A lower end suction port is connected to the upper side of the frame via a pump fixed to the upper portion of the frame, a rear end side extends to the outside of the waterway, and a hose for discharging shellfish sucked from the hood to the outside of the waterway together with water; A cable for supplying electric power to the motor is provided, so that the suction force by the vertical thrusters supported in the vertical thruster holes formed at the respective corners of the frame causes the suction force on the wall surface to be reduced. 4 corners were obtained in a well-balanced and stable manner, and shells were removed by wheels and rotating brushes arranged close to each thruster. With a sufficiently large frictional force between the surface and the surface, the wheel can be driven strongly without the wheels slipping on the wall, and the rotating brush can be moved vertically against the wall of the waterway. By the vertical pressing mechanism, the rotating brush moves up and down to follow the convex surface inside and the concave surface outside from the extension of the wheel contact surface, respectively, and tilts the rotating brush forward and backward along the waterway wall surface. By the mechanism, the rotating brush can be automatically tilted by the pressing force corresponding to the convex surface inside and the concave surface outside from the extension of the wheel contact surface, and the rotating brush follows the wall surface in the normal direction. Can stably carry out perfect shelling. Further, a hood supported by the casing of the rotating brush driving motor and for sucking shells scraped off from the wall of the water channel by the pair of left and right rotating brushes, a lower end suction port is connected to the hood, and an upper side is located above the frame. By using a hose whose rear end extends to the outside of the waterway via a fixed pump and discharges shellfish sucked from the hood to the outside of the waterway together with water, the shellfish removed by the rotating brush is efficiently collected by the hose while being scraped. its recovery rate can be increased, as a whole Te
As a single, compact and simple shell removal system.
Advanced functions that can achieve all the above effects simultaneously
And a shell removal device on the waterway wall.
High-performance shell removal system that is compact and compact.
Highly convenient, high added value, and extremely useful for industry
It is possible to provide a device for removing shellfish on a wall of a waterway (claim 1).

[Brief description of the drawings]

FIG. 1 is a plan view showing a shell removal apparatus according to one embodiment of the present invention.

FIG. 2 is a vertical sectional side view taken along the line II-II of FIG.

FIG. 3 is a horizontal cross-sectional view showing a state where the shell removal apparatus of FIGS. 1 and 2 is collecting shells on the inner wall surface and the outer wall surface of a curved portion of a waterway having a circular cross section.

FIG. 4 is a plan view showing the upper surface of a conventional shell removal device.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a cross-sectional view showing the shell removal apparatus shown in FIGS. 4 and 5 during shell removal with respect to the bottom and side walls of a conventional water channel having a square cross section.

[Explanation of symbols]

 1a Frame 2 Thruster Cylinder 3 Support Frame 4 Thruster Motor 5 Thruster Blade 6 Wheel Motor 7 Wheel 8a Brush Motor 9a Rotary Brush 10a Skirt 11 Pump 12a Suction / Discharge Hose 13 Arm 14 Telescopic Machine 15 Clevis 16 Lateral Pin 17 Link 18 Lateral Pin 19 Bearing Reference Signs List 20 horizontal connecting shaft 21a hood A plane B concave surface C convex surface F vertical pressing mechanism G forward and backward tilting mechanism

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-144793 (JP, A) JP-A-61-271080 (JP, A) JP 7-25981 (JP, U) JP 4 9495 (JP, U) JP-B 63-49040 (JP, B2) JK-55-16973 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B08B 1/00-1 / 04 B08B 5/00-13/00

Claims (1)

(57) [Claims] 1. A flat rectangular frame, a vertical thruster supported in a vertical thruster hole formed in each corner of the frame, and a vertical thruster disposed in close proximity to each of the thrusters. Wheels, a wheel driving motor for driving the respective wheels, a pair of left and right rotating brushes supported at the front end of an arm protruding from the front end of the frame, and a rotating brush driving for driving the respective rotating brushes A motor, an up-and-down pressing mechanism for pressing the rotating brush up and down against the water channel wall surface, a front-rear tilt mechanism for tilting the rotating brush along the water channel wall surface, and the left and right supported by a casing of the rotating brush driving motor. A hood for sucking shellfish scraped off from the wall of the water channel by a pair of rotating brushes, and a lower end suction port is connected to the hood and the upper side is the frame. A hose that extends to the outside of the waterway via a pump fixed to the upper part of the hood and discharges shellfish sucked from the hood to the outside of the waterway with water, and a cable that supplies power to each of the motors. A shell removal device for a waterway wall.