JPH06280283A - Dredging bucket - Google Patents

Abstract

PURPOSE:To improve dredging efficiency, and to dredge sludge with high sludge content. CONSTITUTION:A dredging bucket A is composed of a case body 1 and moving wanes 2. An intake port 1a is opened to the lower section of the case body 1, and water bottom sediment can be taken in. An exhaust port 1c is opened to the upper section of the case body 1, and the taken-in water bottom sediment can be discharged to a suction pipe 3. The moving wanes 2 are rotated while being supported and guided by guide rollers 5 in the case body 1. The moving vanes 2 are turned and driven in the direction indicate by the arrow by a hydraulic motor 10 through a rotary transmission means such as an internal gear 6, an intermediate gear 7, an intermediate pulley 8, a belt 9, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dredging bucket for dredging bottom sediment such as sludge in rivers, lakes, harbors, waterways and the like.

[0002]

2. Description of the Related Art As a conventional dredging bucket of this type,
There is a structure in which a water (cutter) claw or a screw is used to excavate water bottom sediment and suck it into a suction pipe.

However, the above-mentioned conventional dredging bucket sucks a large amount of water together with the bottom sediment, so that not only the dredging efficiency is extremely low, but also it is difficult to treat a large amount of sucked water. There was a point.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. The object of the present invention is to achieve a high dredging efficiency and a high sludge content. To provide a dredging bucket.

[0005]

The dredging bucket of the present invention comprises a case body having an intake port for the bottom sediment and a discharge port communicating with the suction pipe of the dredging device. Rotating blades provided rotatably in the main body and provided with a number of compartments around which water bottom sediment taken from the inlet is transferred to the outlet; and inside the compartment facing the outlet. And a means for introducing outside air; The dredging bucket is swingably attached to the tip of a supporting member such as a boom or a ladder of the dredging device, and is configured so that the direction of the intake port can be changed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, A is a dredging bucket, which is mainly composed of a case body 1 and rotating blades 2.

An intake port 1a is opened in the lower part of the case body 1 so that the bottom sediment can be taken in. In this embodiment, the side plate 1b of the case body 1 is
Is cut in the vicinity of the intake port 1a, but it may be formed so as to close the side part of the intake port 1a like a virtual line. On the other hand, a discharge port 1c is opened above the case body 1 so that the taken-in water bottom deposit can be discharged to the suction pipe 3. Reference numeral 4 is an outside air introduction pipe.

The rotary vane 2 is mounted in the case body 1 so as to be rotated while being supported and guided by a guide roller 5. The rotary vane 2 is rotationally driven in the direction of the arrow by a hydraulic motor 10 via a rotary transmission means such as an internal gear 6, an intermediate gear 7, an intermediate pulley 8 and a belt 9. The support guide means and the rotation transmission means of the rotary blade 2 are not limited to those having the above-mentioned configurations, and may have any structure or function as long as the rotary blade 2 can be rotatably supported.

In FIG. 2, reference numeral 11 is a barge, which is movably moored on the water such as a lake. A backhoe 12 is mounted on the ship 11 and its boom 12a is mounted.
The dredging bucket A is rotatably attached to the tip of the via a mounting bracket a.

Reference numeral 13 denotes a suction pump, which is the suction pipe 3
The water bottom sediment B sucked through is pumped into the tank 14. Reference numeral 15 is a mud pipe, which is designed to pump the water bottom sediment in the tank 14 to a landfill, a transportation dump, or the like on land.

Since the dredging device of this embodiment is constructed as described above, the hydraulic motor 10 is operated to rotate the rotary vanes 2 in the case body 1 in the direction of the arrow, and the case body 1 When the intake port 1a is directed to the water bottom deposit B, the water bottom deposit B is taken into the compartment 2a of the rotary blade 2 and transferred to the upper part of the case body 1 as the compartment 2a moves.

A discharge port 1 opened at the top of the case body 1.
Since c is connected to the suction pipe 3, the water bottom deposit B in the compartment 2a facing the discharge port 1c is sucked into the suction pipe 3. At this time, since the outside air is introduced from the outside air introduction pipe 4, the water bottom deposit B in the compartment 2a is smoothly and reliably sucked without resistance. The water bottom sediment B sucked by the suction pipe 3 is sent into the tank 14 and further pressure-fed to the land through the sludge discharge pipe 15.

As shown in FIG. 3, the dredging bucket A is swingably mounted on the boom 12a and the like by a mounting bracket a, and the rotation direction of the rotary blades 2 is reversed with the swing motion. Consists of
It is capable of reciprocating and dredging.

[0014]

【The invention's effect】

1) Since the water bottom sediment is sucked after being taken into the compartment of the rotary vane, only the water bottom sediment in the compartment is surely sucked, there is no fear of sucking excess water, and a high mud content is lifted. Mud is possible. 2) It is possible to take in the bottom sediment while excavating it by the rotary blades. 3) When sucking the water bottom deposit in the compartment, the outside air in the compartment is introduced, so that it can be smoothly and surely sucked and discharged. 4) Since the intake port for the water bottom sediment of the case main body can be changed, it is possible to reciprocate on the water bottom and dredge, thereby improving the work efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a dredging bucket of the present invention (A) and a cross-sectional view (B) taken along the line E of FIG.
It is sectional drawing (C) along the Roro line.

FIG. 2 is an operation explanatory view of the dredging bucket of FIG.

FIG. 3 is a schematic explanatory view of a dredging device having a dredging bucket of the present invention.

[Explanation of symbols]

 1 Case Main Body 1a Intake Port 1b Side Plate 1c Discharge Port 2 Rotating Blade 2a Chamber 3 Suction Pipe 4 Outside Air Introducing Pipe 5 Guide Roller 6 Internal Gear 7 Intermediate Gear 8 Intermediate Pulley 9 Belt 10 Hydraulic Motor 11 Barge 12 Backhoe 12a Boom 13 Suction pump 14 Tank 15 Sludge pipe A A Dredge bucket a Mounting bracket B Water bottom sediment

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Kato 37-37 Yufutsu, Tomakomai, Hokkaido

Claims (2)

[Claims] 1. A case main body having an intake port for water bottom sediment provided in a lower part thereof and an exhaust port communicating with a suction pipe of a dredging device provided in an upper part; and rotatably mounted in the case main body. A rotary blade around which a large number of compartments for transferring the water bottom sediment taken in from the intake to the outlet are provided; means for introducing outside air into the compartment facing the outlet. A dredging bucket characterized by that. 2. The dredging according to claim 1, wherein the dredging device is swingably attached to the tip of a supporting member such as a boom or a ladder of the dredging device, and the direction of the intake port is changeable. bucket.