JP2000001837A - Moving trashrack rake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving trashrack rake improving the effects on mobility, work efficiency and costs in order to remove trash in a screen provided to an intake of an irrigation channel. SOLUTION: The constitution of a moving trashrack rake X uses a hydraulic construction machinery A such as a hydraulic shovel, etc., as a traveling body and a controller main body, a bucket 2 rotatable in the vertical direction is provided to the front end of an arm 1 (1b) through a ring 3, a sieving net 2a consisting mainly of a vertical grid is circumferentially provided to the scooping face side of the bucket 2 in a detachable manner, and a plastic rake 5 is energized with spring elements 4 (4b) and 5c and is extended to the front end edge of the bucket 2 in a state to have a posture capable of being returned by making it possible to oscillate. The moving trashrack rake is so borne on a bracket from the arm 1 (1b) that it is opposed to the rake 5 at a rotation lower limit position, and a trash holding grip auxiliary member 7 connected to the bucket 2 through a link 7c is faced thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover for mechanically removing dust from a screen provided at an intake of an irrigation canal such as a regulating pond, a river, or a sewage treatment plant for hydroelectric power generation. In detail, a hydraulic construction machine such as a hydraulic excavator is used as a traveling body and a control device main body, a swing arm and a shovel are replaced, an arm and a bucket dedicated to dust removal are provided, and mobility, workability, and cost effectiveness are improved. It relates to a mobile dust remover.

[0002]

2. Description of the Related Art Conventionally, a dust remover for removing dust from a screen has been known. Here, most of the stationary dust removers are provided for the installed screen.

[0003] In this type of dust remover, in many cases, a rake is driven by a chain or a wire along a screen to scrape up dust.

[0004] For efficient operation of a hydroelectric power plant, it is necessary to constantly remove dust from a screen such as an intake port and maintain a state in which dust is not accumulated.

[0005] For this reason, a stationary dust remover is installed in a power plant with a high labor saving effect, and the dust removal processing is performed without manual operation.

On the other hand, in locations where water is flooded at the water intake at the inlet of the pouring power plant, installation of the conventional stationary dust remover is expensive and installation is postponed. In some cases, such as during the deciduous season or flooding, night work is required.

In addition, the work of manually scraping dust attached (trapped) on the screen is a heavy labor, and if dust cannot be removed, power generation may be stopped.

In addition, workers are aging in recent years, and there is a concern about a shortage of labor in the future.

[0009]

However, the conventional stationary dust remover is a dedicated device produced as a single unit according to the installation location, and is expensive because it requires foundation work.
In addition, since the lower part of the device is always submerged after installation, the service life of the device is short, and maintenance costs are increased, such as the need for water cutoff for inspection and maintenance.

[0010] In addition, when the water inlet is installed at a place where the water intake is flooded at the time of flooding, it is necessary to provide a means (incline or the like) for moving (withdrawing) to a safe position where the water is not submerged at the time of flooding. Included costs are high.

In addition, when a stationary dust remover is installed in a river, it is obliged to move from the river during a flood according to the River Law.

[0012] Further, the stationary dust remover can of course be operated only in a limited place, and since it is intended to remove small dust attached to the screen, dust such as driftwood cannot be removed. .

On the other hand, the manual dust removal operation has a problem that the burden on cost and effect such as operation time and labor cost is large, and furthermore, there is a problem that it is affected by weather.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mobile dust remover which solves the above-mentioned problems and has improved mobility, workability and cost effectiveness.

[0015]

SUMMARY OF THE INVENTION In order to solve the problem, the present invention uses a hydraulic construction machine such as a hydraulic shovel as a traveling body and a control device main body, and replaces a swing arm and a shovel to form an arm dedicated to dust removal. Equipped with a bucket, moved to the work position, scraped the garbage caught on the screen from the land with a rake, scooped into the bucket, and gripped,
A mobile dust remover for removing, discarding, or collecting a bucket, which is provided with a vertically rotatable bucket at a tip of an arm via a link, and a sieve sieving net is detachably provided around a scooping surface of the bucket. At the front end of the bucket, a rake is urged by a spring element to extend so as to be swingable and capable of returning to a posture, and a bracket is provided from the arm by the bracket so as to face the rake at the lower rotation limit position of the bucket. It is characterized by being provided with a dust holding gripping assisting member which is supported and connected to the bucket via a link.

[0016]

In the embodiment of the present invention, a spring element is mounted on the link between the arm and the bucket in the above-described configuration, and a cushioning mechanism for the screen is provided together with the spring element for urging the rake. . A guide roller is attached to the tip of the bucket on the back of the rake so that when the bucket is pulled up along the screen, the load (load) on the screen is dispersed and protected. The rake is supported by urging the spring elements in combination from two directions.
(See below)

The holding member for holding dust is a rubber plate, a metal fork or a metal comb.

Here, the function and effect of the dust remover are, firstly, self-propelled (movable), and secondly, the function relating to the dust removal processing is carried out by scraping from the land, grasping and lifting, and loading. It is important that there is. Therefore, significant improvements can be achieved in terms of mobility, workability, and cost effectiveness.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory side view showing a working state.

FIG. 2 is an assembly view of the bucket and the rake at the tip of the dust remover.

FIG. 3 is an explanatory diagram of the operation of the bucket.

FIG. 4 is a diagram for explaining the operation of the rake.

FIG. 5 is an explanatory diagram of the continuous operation of the bucket.

As shown in FIG. 1, the mobile dust remover (X) of the present invention connects a main arm (1a) and a front arm (1b) to the main body of a commercially available hydraulic construction machine (A), A bucket (2) for removing garbage and a plastic rake called a rake (5) are provided, and the servo (1c) is operated by expanding and contracting by the same operation as the original construction machine (A), and installed at the site The dust attached to the screen (8) is scraped up.

The bucket (2) is attached to the tip of the arm (1; 1b) via a link (3) so as to be rotatable in the vertical direction, and a sieving net (2a) mainly composed of a vertical lattice is provided on the scooping surface side.
Is detachably provided. [Fig. 2]

A guide roller (6) is attached to the tip of the bucket (2) on the back of the rake (5), and when the bucket (2) is pulled up along the screen (8), the screen ( 8) The load (load) on the load is dispersed and protected. [Figs. 2, 3]

The rake (5) is extended from the front edge of the bucket (2), and is urged by a spring element (3b) so as to be swingable and capable of returning to a posture. The material is preferably made of plastic. Here, the spring element is configured by combining a tension box (4; 4b) and a shaft mounted spring (5c) from two directions. [Fig. 4]

Then, the arm (1; 1b) and the bucket (2)
A spring element (3b) is mounted on the link (3) between them, and a cushioning mechanism for the screen (8) is provided together with the spring element (4; 4b) for biasing the rake (5).
[Figs. 2, 3]

The gripping assisting member (7) for holding dust is provided so as to face the rake (5) at the lower rotation limit position of the bucket (2), and is supported by the bracket (7a) from the arm (1; 1b). And the fixed arm (7
b) and the link (7c). [Fig. 5]

The operation and action will be described below. By operating the former arm (1a) and the former arm (1b), the bucket (2) is moved to the lower end of the screen (8) located below the dust remover (X). Move and bring the rake (5) into contact. The screen (8) is a lattice assembled only in the vertical direction, and the rake claws of the rake (5) enter between the lattices of the screen (8).

At this time, the rake (5) is placed on the screen (8).
The impact hits the link (3) in FIG. 3 and the tension box (4) supporting the rake (5) in FIG.
Is absorbed by.

As shown in FIG. 3, the link (3) usually functions as a constant pressure device for equalizing the force pressing the screen (8) of the former arm (1a) and the former arm (1b). The link (3) is a link connecting the rod (1d) for operating the bucket (2) and has a buffering mechanism. The rod (1d) and the link (3) are connected by a pin (3a). Block (3) that freely moves up and down outside of (3)
c) The nut (3d) is used to prevent it from coming off.

The block (3c) and the bucket (2) are connected by a pin (3e), the rod (1d) and the block (3c) are connected by a coil spring (3b) [spring element], and the operating force is applied to the bucket (2). When the impact is applied to the bucket (2), the force is transmitted to the block (3c) via the pin (3e). However, since the coil spring (3b) (spring element material) expands and contracts, one force is applied. Do (1d) is not transmitted as a big impact.

As shown in operation 3 in FIG. 4, the tension box (4) is a device for pushing out the rake (5), and can absorb the direct force received by the rake (5).

The structure of the tension box (4) is such that the box (4) [casing] is fixed to the square pipe (4c) fixed to the bucket (2), and the head protrudes into the square pipe (4c). , A push pin (4d) and a coil spring (4b) (spring element) that presses it into the lid (4a)
Pressing and contracting (accumulates elastic energy).
The push pin (4d) protruding into the square pipe (4c) pushes the shaft (5a) which is directly fixed to the rake (5), so that the force applied to the rake (5) is integrated with the shaft (5). 5a)
The shock is absorbed by pressing the pin (4d).

To scrape up the trash, a screen (8)
If the entire rake (5) does not hit the rake (5), dust is left. However, in the configuration of the present invention, the rake (5) is movably moved at the tip of the bucket (2) [spring element (tension box 4 (4)
b) It can be swung by the shaft mounted spring (5C), and the posture can be returned) so that it can be automatically corrected by following the gradient of the dust removal point. That is, the screen (8)
It is not necessary to consider the rake angle with respect to the limit.

As shown in operation 2 of FIG. 4, the rake (5)
Is mounted on the rake mounting bracket (5b), and the shaft (5a) is attached to the square pipe (4c) fixed to the bucket (2) through the shaft (5c). The coil spring (5c) (spring element) enters both sides of the square pipe (4c) to move freely and to center it.

If the bucket (2) is not parallel when the bucket (2) is put on the screen (8), the rake (5) is inclined about the push pin (4d) of the tension box (4) as a fulcrum, and the screen ( Follow 8).

When a load is applied so that the former arm (1a) and the former arm (1b) press the screen (8), the force is applied to the guide roller attached to the tip of the bucket (2) by the shaft (6a). The guide roller (6) rolls on the screen (8) when the bucket (2) comes in contact with and receives the screen (8) and lifts the bucket (2) along the screen (8). To protect.

The dust collected in the air accumulates in the sieving net (2a) shown in FIG. 2, and when the bucket (2) is rolled in, the dust holding gripping assisting member (7) is closed and sandwiched.

As shown in FIG. 5, the dust holding gripping assisting member (7) is supported by a bracket (7a) fixed to the tip arm (1b), and an arm (7) fixed to the bucket (2). 7b) and the link (7c).

The operation of the blind spot below the dust remover body [X (A)] can be confirmed by the under mirror (9) shown in FIG.

The trash caught in the bucket (2) can be lifted by operating the arms (1; 1a, 1b) and immediately loaded on the transport vehicle.

Also, large-sized dust such as floating dust and driftwood can be scooped by a sieve net (2a) of a bucket (2) as long as the arm (1) can reach the dust, and a holding aid for holding dust. The member (7) can be closed and sandwiched and fried.

In operation, a pressure adjusting valve (relief valve) is set in the servo (1c), and the output is switched according to the strength of the screen (8), so that the arm (1; 1a, 1b)
What is necessary is just to perform a scraping work, without considering the power.

[0047]

The present invention has the above-mentioned structure and has the following effects.

(1) Since it is a self-propelled type, it can be freely moved to an arbitrary place, and trash disposal and loading work can be performed.

(2) In places where the working area is flooded at the time of flooding, such as a water intake, it is possible to move to a safe place before flooding.

(3) Since the dust rake is small and does not hinder running water, dust can be removed while taking water, and there is no need to limit or stop the flow rate (flow rate).

(4) It is more compact than a stationary dust remover.
The price is low and no additional work is required.

(5) Maintenance can be easily performed on land on a daily basis, and running costs are small, leading to cost savings. Should any damage be found on the machine, it can be dealt with with little care.

(6) Since a commercially available construction machine is used, durability and reliability are excellent, and a system for supplying parts is in place.

(7) The safety of the dust removal worker is ensured, the working time is reduced, and the total cost is reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing a working state.

FIG. 2 is an assembly diagram of a bucket and a rake at the tip of a dust remover.

FIG. 3 is a diagram illustrating the operation of a bucket.

FIG. 4 is a diagram illustrating the operation of a rake.

FIG. 5 is an explanatory diagram of a continuous operation of a bucket.

[Explanation of symbols]

 1 Arm 1a Former arm 1b Destination arm 1c Servo 1d Rod 2 Bucket 2a Sieving net 3 Link 3a Pin 3b Coil spring [spring element] 3c Block 3d Nut 3e Pin 4 Tension box [spring element] 4a Lid 4b Coil spring [spring element ] 4c Square pipe 4d Push pin 5 Rake 5a Shaft 5b Rake mounting bracket 5c Shaft mounting spring 6 Guide roller 6a Shaft 7 Dust holding gripping support member 7a Bracket 7b Fixed arm 7c Link A Hydraulic construction machine (body) X Moving dust removal Machine (the present invention)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiko Kunishige 4-33 Komachi, Naka-ku, Hiroshima-shi, Hiroshima Chugoku Electric Power Co., Inc. (72) Inventor Nobuyuki Fukuda 10852 No. (1) Inside the 1 Emur Industry Co., Ltd. (72) Inventor Hiroki Nakagawa 10852 Ohara, Hachihonmatsucho, Higashihiroshima City, Hiroshima Prefecture

Claims (3)

[Claims] 1. A dust remover for removing dust from a screen provided at an intake of an irrigation canal such as a regulating pond, a river, and a water and sewage treatment plant for hydroelectric power generation, in which a hydraulic construction machine such as a hydraulic shovel is driven. Used as a body and a control device main body, replacing a swing arm and a shovel, a moving dust remover equipped with a dedicated dust removing arm and a bucket, provided with a bucket that can be vertically rotated through a link at the tip of the arm, A sieving net is provided around the scooping surface side of the bucket so as to be detachable, and a rake is urged by a spring element at the front end of the bucket so as to be swingable and capable of returning to a posture, and the bucket is rotated. At the lower limit position, a dust holding gripping support member supported by the bracket from the arm so as to face the rake and connected to the bucket via a link is provided. A moving dust remover, wherein the dust trapped on a screen from the land is lifted up by a rake, scooped and held in a bucket, and removed or discarded or collected. 2. The mobile dust remover according to claim 1, wherein a spring element is mounted on a link between the arm and the bucket, and a cushioning mechanism for the screen is provided together with the spring element for urging the rake. 3. The mobile dust remover according to claim 1, wherein the holding member for holding dust is a rubber plate, a metal fork, or a metal comb.