JPH0431312Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a scraper in a filth treatment device.

(Prior art) Conventionally, a screen that removes solids contained in wastewater by immersing its lower half into a wastewater channel was installed on a large number of bars arranged in parallel at intervals and at the top and bottom ends of the screen. a circular body, a belt stretched over the circular body along the outer circumference of each of the bars so as to leave a gap between them, and a claw piece provided on the outer surface of the belt, wherein the bar A scraper device for a sewage treatment equipment is described in Japanese Utility Model Publication No. 57-28903, in which a part of the lower side of the belt is cut out, and a dot fur roll and a dot fur knife placed opposite to the dot fur roll are provided on the outside of the belt facing the notch. It is publicly known.

(Problems to be Solved by the Invention) In the above-mentioned known method, the upper end of the fixed screen is fitted into the V-groove of the upper drive rotating roll, and dirt clogging the V-groove is scraped off with the upper end of the screen. When the belt is stretched and slack, if the upper drive roll is moved upward to tension the belt, the V-groove of the roll and the top edge of the screen will separate and become irremovable. For this reason, in the past, the screen had to be divided into upper and lower parts and the middle part was extended, but this resulted in a complicated mechanism.

In addition, the dirt adhering to the screen belt was scraped off by a scraper rotor that rotated in the opposite direction to the direction of movement of the screen belt, and the dirt adhering to the scraper rotor was scraped off with a knife-shaped metal fitting.

(Means for solving the problem) Therefore, the present invention is based on the vertical frames 1, 1 arranged on the left and right sides.
A passive rotating roll 3 is disposed in the lower part of the gap, and a driving rotating roll 4 is disposed in the upper part.
A plurality of grooves 5 are formed on the outer peripheral surface of the drive rotating roll 4 at predetermined intervals in the roll axis direction, and a synthetic resin belt 6 is wound around each pair of upper and lower grooves 5. The bearing metal 18 of the rotating roll 4 is formed so as to be movable in the stretching direction of the synthetic resin belt 6 with respect to the vertical frames 1, 1 by means of an adjustment screw 19, and the bearing metal 18 is provided with grooves 5 for cleaning. A claw 26 and a belt scraper 27 of the synthetic resin belt 6 are attached, and the cleaning claw 26 and the belt scraper 27 are configured to move in accordance with the movement of the drive rotation roll 4, and are used as a scraper in a waste disposal device. be.

(Example) An example of the present invention will be described with reference to the drawings.
is a pair of vertical frames on the left and right, the lower ends are connected by horizontal board 2,
A passive rotating roll 3 is attached to the lower part between the vertical frames 1, 1, and a driving rotating roll 4 is attached to the upper part thereof, and grooves 5 are formed in the passive rotating roll 3 and the driving rotating roll 4 at desired intervals in the roll axis direction. A synthetic resin belt 6 is wound around each pair of upper and lower grooves 5. Insertion holes 7 are formed at desired intervals along the entire length of the synthetic resin belt 6, and rake pins 8 are inserted into these holes.

As shown in FIG. 2, the scraping pin 8 is linear, and its lower half is a linear insertion portion 9 that is inserted into the insertion hole 7, and the tip of the insertion portion 9 is provided with a bulge to prevent it from coming out. An exit portion 10 is formed.

The upper half of the scraping pin 8 is a straight scraping part 11.
The scraper part 11 has a diameter smaller than that of the insertion part 9.
Forms to be slightly large in length.

At the upper positions of the vertical frames 1, 1, longitudinal adjustment slots 16, 16 are provided as shown in FIG. Both sides of the rotating shaft 17 of the driving rotation roll 4 are made to protrude laterally through the adjustment elongated hole 16, and the protruding portions are pivotally supported by a bearing metal 18. Reference numeral 19 denotes an adjustment screw inserted into a bent portion 21 of the vertical frame 1, and a flange portion 20 is provided at the tip thereof, and the flange portion 20 is engaged with the bearing metal 18. 28 is a guide for the bearing metal 18, and when the adjustment screw 19 is rotated, the bearing metal 1
8 is guided by a guide 28 and moves in the length direction of the vertical frame 1. 22 is a double nut.

A mounting plate 23 is integrally attached to the bearing metal 18.
, and fix the upper scraper 24 thereto with a nut 25. The rear end of the upper scraper 24 is bent upward to form a cleaning claw 26, and the cleaning claw 26 is fitted into the groove 5. Also upper scraper 2
4 is fixed with a V-shaped belt scraper 27 that clamps the synthetic resin belt 6.

In addition, 12 is a motor, 13 is a drive pulley, 1
4 is a passive pulley, and 15 is a belt.

(effect) Next, we will discuss the effect.

Since the present invention has the above-mentioned configuration, when the horizontal plate 2 is immersed in the sewage waterway and the drive rotation roll 4 is rotated by the motor 12 via the drive pulley 13, belt 15, and passive pulley 14, the drive rotation roll 4 and the passive rotating roll 3 rotates, and the synthetic resin belt 6
The scraping part 11 of the scraping pin 8 fixed in the insertion hole 7 scrapes up and removes the dirt in the waste water channel.

During the above-mentioned work, when the groove 5 of the upper drive rotating roll 4 is clogged with dirt, the cleaning claw 26 that fits into the groove 5 is removed.
Clean this with the synthetic resin belt 6.
A belt scraper 27 cleans dirt adhering to the belt.

When the belt 6 is loosened, loosen the double nut 22 and rotate the adjustment screw 19 to tighten the bearing metal 1 that pivotally supports the drive rotation roll 4.
8 is guided by the guide 28, so
The synthetic resin belt 6 is under tension. In this case, since the cleaning claw 26 and the belt scraper 27 are also attached to the bearing metal 18, they move together with the driving rotary roll 4, and their relative positions do not change, so that they continue to accurately function as a scraper.

(Effects) Conventionally, a screen that removes solid matter contained in wastewater by immersing its lower half into the wastewater channel was installed using a large number of bars arranged in parallel at intervals, and at the top and bottom ends of the screen. A belt consisting of a circular body, a belt stretched on the circular body along the outer circumference of each of the bars so as to leave a gap between them, and a claw piece provided on the outer surface of the belt, wherein the bar is A scraper device for a sewage treatment equipment is described in Japanese Utility Model Publication No. 57-28903, in which a part of the lower side is cut out, and a dot fur roll and a dot fur knife placed opposite to the dot fur roll are provided on the outside of the belt facing the notch. It is publicly known.

In the above-mentioned known method, the upper end of the fixed screen is fitted into the V-groove of the upper drive rotating roll, and the dirt clogging the V-groove is scraped off with the upper end of the screen, but when the belt stretches and loosens, If the upper drive roll is moved upward to tension the belt, the V-groove of the roll and the top edge of the screen will separate and become irremovable. For this reason, in the past, the screen had to be divided into upper and lower parts and the middle part was extended, but this resulted in a complicated mechanism.

In addition, the dirt adhering to the screen belt was scraped off by a scraper rotor that rotated in the opposite direction to the direction of movement of the screen belt, and the dirt adhering to the scraper rotor was scraped off with a knife-shaped metal fitting.

However, in the present invention, vertical frames 1 arranged on the left and right sides,
A passive rotating roll 3 and a driving rotating roll 4 are arranged in the upper part of the space between the passive rotating roll 3 and the driving rotating roll 4, respectively, and a plurality of grooves are formed on the outer peripheral surfaces of the passive rotating roll 3 and the driving rotating roll 4 at predetermined intervals in the roll axis direction. 5, and a synthetic resin belt 6 is wound around each pair of upper and lower grooves 5, and the bearing metal 18 of the driving rotation roll 4 is attached to the vertical frame 1 by an adjustment screw 19.
A cleaning claw 26 for the groove 5 and a belt scraper 27 for the synthetic resin belt 6 are attached to the bearing metal 18. Since the belt scraper 27 is also used as a scraper in the waste disposal apparatus which is configured to move in accordance with the movement of the driving rotation roll 4, when the belt 6 becomes slack, the adjustment screw 1
9 and pull up the driving rotation roll 4,
The synthetic resin belt 6 becomes tense, and the cleaning claw 26
Since the belt scraper 27 also moves upward together, the relative position does not change, and the effect of continuing to accurately perform the function as a scraper is exhibited.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view, Figure 2 is a side view of the main parts, Figure 3 is a side view of the adjustment part, Figure 4 is a sectional view of the adjustment part, Figure 5 is a perspective view of the scraper, and Figure 6 is a side view of the main parts. The figure is a cross-sectional view of the belt scraper. Explanation of symbols, 1...Vertical frame, 2...Horizontal board, 3...
Passive rotating roll, 4... Drive rotating roll, 5...
Groove, 6... Synthetic resin belt, 7... Insertion hole, 8
... Raising pin, 9... Insertion part, 10... Swelling part,
11... Raising part, 12... Motor, 13... Drive pulley, 14... Passive pulley, 15... Belt, 16... Adjustment slot, 17... Rotating shaft, 18
... Bearing metal, 19 ... Adjustment screw, 20 ... Flange section, 21 ... Bending section, 22 ... Double nut, 2
3...Mounting plate, 24...Upper scraper, 25
...Natsuto, 26...Cleaning claw, 27...Belt scraper, 28...Guide.

Claims (1)

[Scope of utility model registration request] A passive rotary roll 3 is disposed at the lower part between the vertical frames 1 and 1 arranged on the left and right sides, and a driving rotary roll 4 is disposed at the upper part. A plurality of grooves 5 are formed at predetermined intervals in the upper and lower grooves 5, and a synthetic resin belt 6 is wrapped around each pair of upper and lower grooves 5. 1 so as to be moved in the tensioning direction of the synthetic resin belt 6 by means of an adjustment screw 19,
The bearing metal 18 has a cleaning claw 26 for the groove 5 and a belt scraper 2 for the synthetic resin belt 6.
7 is attached, and the cleaning claw 26 and the belt scraper 27 are also configured to move in accordance with the movement of the driving rotation roll 4.