JPH0647956Y2 - Forced scraping rope type dust remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a forced sweeping rope type dust remover.

2. Description of the Related Art Conventionally, in a sand settling ground of a rainwater drainage pump station or a sewage treatment plant, various dust traps that have flowed into a waterway are removed by a dust remover. As a conventional dust remover, there is a forced scraping rope type dust remover as shown in FIGS. In this system, a bar screen 1 having vertical grids is arranged in a water channel, and floating impurities caught by the bar screen 1 are scraped up by a rake 2. The rake 2 has a claw portion 3 that engages with the grid of the bar screen 1 at the tip and also has rollers 4 on both sides, and the roller 4 has guide rails 5 provided on both sides of the bar screen 1.
When the bar screen 1 is guided, the bar screen 1 moves along the grid. The claw portion 3 is rotatably supported by the main body frame 6 of the rake 2, and the bar screen 1
To be engaged with and to be separated from the bar screen 1. Then, on the claw portion 3, a hoisting rope 7 for pulling up the rake 2 is provided.
And a rake opening / closing rope 8 are connected.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-mentioned configuration, the floating foreign matter that has entered the guide rail 5 is wound around the roller 4, or is caught between the guide rail 5 and the roller 4, which hinders the movement of the roller 4. As a result, there was a problem that the rake could not be lifted and lowered.

The present invention solves the above-mentioned problems, and relates to a forced sweeping rope type dust remover capable of ensuring smooth movement of a roller.

Means for Solving the Problems In order to solve the above problems, the present invention provides a bar screen vertically arranged in a water channel for capturing floating foreign matters,
A rake that is provided on the trapping surface of the bar screen by a driving cord and is driven up and down along the trapping surface of the bar screen, and a rake that separates the rake along both sides of the bar screen along the trapping surface. And the guide rails, which are arranged in the vertical direction and have a U-shaped cross section facing the rake, and corresponding left and right sides of the rake corresponding to the guide rails. In a forced sweeping rope type dust remover equipped with a moving roller, a dustproof cover formed of an elastic body is provided on the guide rail so as to cover the opening of the groove portion, and the movement of the roller support shaft is provided on the dustproof cover. This is a structure in which an allowable cut is formed.

Further, a small diameter portion and a large diameter portion are formed on the roller, and a step surface formed between the small diameter portion and the large diameter portion of the roller is formed on both side walls of the groove portion of the guide rail in the axial direction of the support shaft of the roller. In this configuration, a step portion that can be locked is formed.

Operation With the above-described structure, the rake is driven up and down on the capturing surface of the bar screen by being guided by the guide rails on the rollers on both sides. At this time, the roller moving in the groove of the guide rail is regulated by the side walls of the groove in the direction normal to the capturing surface of the bar screen, so that the rake does not separate from the capturing surface of the bar screen, Move along. The dust-proof cover prevents the floating dust from entering the groove of the guide rail, so that the floating dust does not get caught between the roller and the guide rail, and the smooth movement of the roller in the guide rail is ensured. It

In addition, the stepped surface formed between the small diameter portion and the large diameter portion of the roller is a step portion formed on both side walls of the groove portion of the guide rail,
By locking the support shaft of the roller in the axial direction, the rake of the rake in the left-right direction is prevented.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First
1 to 2, a bar screen 12 for catching floating foreign matters is arranged in the water channel 11 in the vertical direction, and the bar screen 12 has vertical grids for flowing running water. Is formed in. And bar screen
A rake 13 is arranged on the trapping surface of 12. The rake 13 is composed of a body frame 14 and a claw portion 15, and the claw portion 15 is a body frame.
The bar screen 12 is rotatably supported around a support shaft parallel to the capturing surface of the bar screen 12, and the lower side portion which is in sliding contact with the capturing surface of the bar screen 12 is formed so as to be engageable with the lattice. Further, the rake 13 is suspended by a hoisting rope 16 and an opening / closing rope 17, and the hoisting rope 16 is connected to the lower side of the claw portion 15 to open and close the rope 17.
Is connected to the upper side of the claw portion 15. In addition, the body frame
Rollers 18 are provided on both left and right sides of 14
Is rotatably supported on a support shaft 19 parallel to the capturing surface of the bar screen 12. A pair of guide rails 20 are provided in the vertical direction along the capturing surface at both left and right positions of the bar screen 12 with the rake 13 therebetween, and a groove portion 21 having a U-shaped cross section is opened in the guide rail 20. Is formed so as to face the rake 13, and the roller 18 moves in the groove portion 21. Therefore, the roller 18 is restricted by the side walls of the groove 21 in the direction normal to the capturing surface of the bar screen 12.

A flange portion 22 is formed on the opening edge of the guide rail 20, and a rubber dust cover 23 is fixed to the flange portion 22. The dustproof cover 23 is provided so as to cover the opening of the groove portion 21 of the guide rail 20, and the dustproof cover 23 is provided with a roller.
A cut 24 is formed along the axis of the guide rail 20 to allow movement of the support shaft 19 of 18. The roller 18 has a small diameter portion 25 on the front end side and a large diameter portion 26 on the base end side. A step portion 27 is formed on both side walls of the groove portion 21 of the guide rail 20, and the step portion 27 is a step surface formed between the small diameter portion 25 and the large diameter portion 26 of the roller 18.
The roller 28 is locked in the axial direction of the support shaft 19 of the roller 18.

The operation of the above configuration will be described below. rake
When lowering 13, the opening and closing rope 17 is tightened, the winding rope 16 is loosened, and the lower side of the claw 15 is separated from the capturing surface of the bar screen 12 and the opening and closing rope 17 and the winding rope are Roll out 16 at the same time. Then, when the floating foreign matter captured on the bar screen 12 is scraped up by the rake 13, while tightening the hoisting rope 16, loosen the opening and closing rope 17,
The opening / closing rope (17) and the hoisting rope (16) are hoisted at the same time with the lower side of the claw portion (15) engaged with the lattice of the bar screen (12). Then, by the hoisting of the opening / closing rope 17 and the hoisting rope 16, the rake 13 rises above the capturing surface of the bar screen 12 while being guided by the guide rails 20 on the rollers 18 on both sides. At this time, guide rail 20
Since the roller 18 moving inside the groove portion 21 is restricted by both side walls of the groove portion 21 in the direction normal to the capturing surface of the bar screen 12, the rake 13 is captured without separating from the capturing surface of the bar screen 12. Move along a plane.

The dustproof cover 23 prevents the floating foreign matter from entering the groove 21 of the guide rail 20, so that the floating foreign matter does not get caught between the roller 18 and the guide rail 20.
The smooth movement of the roller 18 inside the groove 21 of the 20 is ensured.

Further, the step surface 28 formed between the small diameter portion 25 and the large diameter portion 26 of the roller 18 is provided on the step portion 27 formed on both side walls of the groove portion 21 of the guide rail 20 and the shaft of the support shaft 19 of the roller 18. Locking in the axial direction prevents the rake 13 from swinging in the left-right direction.

Effect of the Invention According to the present invention as described above, since the dust-proof cover prevents the entry of the floating impurities into the groove of the guide rail, the floating impurities do not get caught between the roller and the guide rail. It is possible to ensure smooth movement of the rollers within the guide rail.

Further, the step surface formed between the small-diameter portion and the large-diameter portion of the roller is locked in the axial direction of the support shaft of the roller by the step portion formed on both side walls of the groove portion of the guide rail, whereby the rake is formed. It is possible to prevent swaying in the left-right direction.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view of part A of FIG. 1, FIG. 3 is an overall perspective view of a conventional rope type dust remover, and FIG. It is a B section expanded sectional view of FIG. 11 ... water channel, 12 ... bar screen, 13 ... rake, 18 ... roller, 19 ... spindle, 20 ... guide rail, 21 ... groove part, 23 ... dust cover, 25 ... small diameter part, 26 ... large diameter part, 27 ... step Part, 28 ... stepped surface.

Claims (2)

[Scope of utility model registration request] 1. A bar screen vertically arranged in a water channel for trapping floating foreign matters; and a bar cord suspended on a trapping surface of the bar screen by a driving cord, the bar screen being trapped on the trapping surface of the bar screen. A rake that is driven up and down along the rake, and guide rails that are arranged vertically on both sides of the bar screen along the capture surface with the rake separated, with groove portions having a U-shaped cross section facing the rake. And provided on both the left and right sides of the rake corresponding to this guide rail,
In a forced sweeping rope type dust remover having a roller moving in the groove of the guide rail, a dustproof cover formed of an elastic body is provided on the guide rail so as to cover the opening of the groove, and the dustproof cover is provided with the dustproof cover. A forced scraping rope type dust remover characterized by forming a cut that allows the movement of the roller support shaft. 2. The forced sweeping rope type dust remover according to claim 1, wherein a small diameter portion and a large diameter portion are formed on the roller, and the small diameter portion and the large diameter portion of the roller are provided on both side walls of the groove portion of the guide rail. A forced scraping rope type dust remover, characterized in that a step portion capable of locking a stepped surface formed between the portions in the axial direction of the roller support shaft is formed.