JP2000085938A - Cleaner device for flight conveyor - Google Patents

Abstract

(57) [Summary] [Problem] To attach a cleaner device to a flight conveyor. SOLUTION: A swingable wiper arm 17 is provided on a lower side by turning a sprocket 8 for driving a chain 2 of a flight conveyor 1, and a flight of the flight conveyor 1 is provided at one end of the wiper arm 17. The wiper arm 17 is provided with a wiper 18 in contact with the scraping surface and the end surface, and the other end of the wiper arm 17 is provided with a return weight 19. After being scraped off, the wiper 18 is returned by the weight 19 to wait for the next flight 3 to arrive.
Therefore, the flight 3 intermittently traveling can be conveniently cleaned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaner for a flight conveyor (also called a scraper conveyor).

[0002]

2. Description of the Related Art Generally, a flight conveyor of this kind has one type.
A chain conveyor that transports a load in a trough by sweeping the load in a trough by a number of scrapers (also called flights) attached at regular intervals to a single or double chain. It is said that it can be applied to the body.

[0003] This flight is generally made of steel plate, but a plastic flight is also used. The inclination angle of the conveyor is about 10 ° from the horizontal, and the transport speed is set to 20 m / min or less. Is preferred.

On the other hand, the above-mentioned flight conveyor is used to carry out dusts scraped up by a screen device for removing coarse suspended matters (hereinafter referred to as dust) in water from the screen device.

[0005] One of the screen devices is a bar screen.
There is known a rack type dust remover for use in
0-60862). This will be described.

6, 7 and 8, FIG. 6 is an overall side view of the rack-type dust removing device 50, FIG. 7 is an enlarged detailed view of a portion A in FIG. 6, and FIG. In the intake channel, for example, a sand basin, an agricultural canal, a thermal power plant, an underdrain or open channel of a hydroelectric power plant, for example, a flat steel intake channel 51 having a depth of, for example, 3 m, is arranged at a predetermined interval with inclination of flat steel. A bar screen 52 formed in a lattice shape is provided.

The bar screen 52 is provided with a rack-type dust removing device 50 as follows.
The dust 60 caught in the above is scraped up by the rake 53 to remove dust.

More specifically, the telescopic arm 54 of the rack type dust removing device 50 includes a fixed arm 55 provided above the water intake channel 51, an intermediate arm 56 below the fixed arm 55, and a lower arm further below the fixed arm 55. 57 are fitted in a telescopic manner.

At the lower end of the lower arm 57, there is provided a rake 53 which is a piece for scraping up dust.

The rake 53 is disposed on the upstream side of a bar screen 52 provided at a slant in the water intake channel 51. An upper shot 59 is provided at the upper end of the bar screen 52. The dust 60 which is connected and captured by the bar screen 52 is scraped up by the rake 53 and dropped from the upper seat 59 to the discharge flight conveyor 1. Therefore, the upper shoe 59 extends over substantially the entire width of the water intake channel 51.

The fixed arm 55 of the telescopic arm 54 is
It is provided between the fixed arm 55 and the machine frame 61 and is attached to the machine frame 61 via a tilt cylinder 62 on a stand 58 so as to be tiltable.

Next, the discharge flight conveyor 1 includes:
7 and 8, a large number of flights 3, 3... Attached to the two chains 2, 2 at regular intervals, and, for example, a width which is partitioned by these flights 3 and has an upward U-shaped cross section. It is roughly composed of a trough 4 having a length of 620 mm and a length of 5.2 m, and supporting plates 5 and 5 for supporting and guiding these chains 2.

The flight 3 is constructed such that a flight scraping plate 7 made of a wooden square material is detachably attached to a flight attachment frame 6 made of an SUS angle material by bolts.

Accordingly, the shape of the flight 3 is substantially rectangular in cross section. A roof-like upper seat 59 is attached to a gutter-like trough 4 having substantially the same length as the width of the intake channel 51.
The garbage 60 that falls substantially uniformly from the surface is sequentially scraped and carried by the flight 3. As a result, even if the wooden timber (7) is worn, the contact surface with the trough 4 can be kept constant and stable scraping can be performed. The abrasion of the trough 4 is prevented.

Therefore, according to the flight conveyor 1, as shown in FIG. 8 in particular, the chain 2 is driven by the driving sprocket 8 and travels. At the carry-out port 9, the flight 3 is inverted and turned downward, and the scraped and contaminated dust 60 is naturally dropped onto the lower shoot 11 along the curved end portion 10 of the trough 4. .

In FIGS. 7 and 8, reference numeral 12 denotes a conveyor frame which supports, for example, the driving sprocket 8, and reference numeral 13 denotes an upper shoe column.

[0017]

In the flight conveyor 1, however, since the flight 3 is particularly formed in a substantially rectangular cross section, the garbage 60 that has been swept away and conveyed.
Falls almost uniformly over the entire length of the trough 4 from the roof-like upper shoe 52, so that it adheres not only to the scraping surface of the flight 3 but also to the upper surface on the upper running side of the flight 3 and does not peel off. There is.

For this reason, general belt conveyor cleaners
For example, it is conceivable to use a cleaner of a rotary brush type, a high pressure washing type, a scraper type or the like, but in the conventional rotary brush type, the flight 3 of the flight conveyor 1 is, for example, 80 mm square per side. , Only the upper surface (also referred to as an end surface) of the flight 3 comes into contact, and the contact with the scraping surface becomes insufficient, so that the flight 3 is left behind.

In the high-pressure washing method, the waste 60 is discharged in a so-called dry manner (one that does not use a discharge pit or the like flowing with water). .

Further, the scraper type cleaner is a device for holding a plate such as an old belt or urethane rubber by a holding portion of a fixed type, a spring type, a counter balance type, a rubber cushion type or the like. Insufficient contact with the raked surface of the flight 3 having a substantially square cross section.

Accordingly, the present invention has a main object of removing a load (for example, dust) attached to the flight by focusing on a flight conveyor running at a low speed.
It is a secondary object to ensure that a flight having a substantially rectangular cross section is not left unremoved.

[0022]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides: 1) a swingable wiper arm provided on a downward running side around a sprocket for driving a chain of a flight conveyor; At one end of the wiper arm, a wiper is provided which contacts at least the scraping surface of the flight intermittently traveling on the flight conveyor, and a return member is provided at the other end of the wiper arm, A cleaning device for a flight conveyor, wherein the wiper returns the wiper to wait for the next flight by the return member after the wiper scrapes off the load attached to the flight by the traveling force of the flight. And 2) a flight conveyor cleaner device in which the cross section of the flight according to claim 1 has a substantially square shape and the trough of the flight conveyor has an upward U-shape. And, 3) according to claim 2 of the trough over substantially the entire length dust introduced for upper shoe - a flight has to face the door conveyor chestnut - it is an gist na device.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIGS. 3 to 5 are operation explanatory diagrams of the embodiment. 6 to 8 described above.
Are applied to the conventional example shown in FIG. 1 and their common parts are avoided from duplication and illustration and description are omitted, but the omitted parts have substantially the same contents.

The flight conveyor 1 according to the embodiment of the present invention comprises a number of flights (scrapers) 3, 3... A trough 4 having a U-shaped cross section and a drive sprocket 8 for driving the chains 2 and a driven sprocket (not shown).

Next, the substantially horizontal flight conveyor 1 is located at a position particularly shifted from the carry-out port 9 to the downward running side, and thus at a position immediately before the scraping surface 3a of the flight 3 becomes vertical. A cleaner device 14 is provided, which is attached to the scraping surface 3a and the end surface 3b of the flight 3, and the like.
The attachments 60a in the refuse 60 are scraped off and cleaned.

That is, a pair of conveyor frames 1 (left and right in the width direction of the trough 4) of the flight conveyor 1
Brackets 15 are respectively suspended from the lower surfaces of the brackets 2, and a pair of wiper arms 17 are pivotally supported at the lower end sides of these brackets 15 via pins 16.

The pair of wiper arms 17 are in the shape of a curved rod having the same shape. One end of the wiper arm 17 is provided with a flexible brush-like or rubber plate-like wiper 18 which can be bent, and both wiper arms 17 are provided.
The mounting is performed over the rooms 17 and 17. The mounting direction of the wiper 18 is substantially opposite to the traveling direction of the flight conveyor 1. At the other end of the arm 17, a return counterweight (which may be a spring and is also referred to as a return member in this specification) 19 is attached so as to be capable of changing its position.

That is, in order to change the mounting position of the counterweight 19, a plurality of moment adjusting bolt holes 20, 20... Are provided in the wiper arm 17, and a long bolt nut 21 is mounted in the moment adjusting bolt hole 20. The counterweight 19 is inserted into and fixed to the long bolt nut 21, and the moment by the counterweight 19 is adjusted. The size (depth) of the scraping surface 3a of the flight 3, the traveling speed of the flight 3 and the flight 3 corresponds to the number of attachments.

The wiper arm 17 is provided with a stopper 22 for determining a stop when the wiper 18 is returned between the pin 16 and the counterweight 19 so that the wiper arm 17 is held. -Suspended from the lower surface of the

In FIG. 1, reference numeral 23 denotes a connecting rod for connecting the pair of wiper arms 17, 17, 24 denotes a transmission sprocket, and 25 denotes a chain which is connected to a motor (not shown). Show.

Next, the operation of this embodiment will be described. A large number of flights 3, 3... Attached to the chain 2 of the flight conveyor 1 at regular intervals are reversed as the driving sprocket 8 rotates.

Therefore, the dust 60 that has fallen substantially uniformly on the trough 4 and has been scraped and carried by these flights 3 is discharged onto the lower shoot 11 by natural fall. At this time, dust 60a, such as wet leaves of leaves, paper, and vinyl pieces, which do not adhere to the flight 3, does not leave the flight 3 but goes around the lower running side of the flight conveyor 1, so that the flight 3 is first scraped as shown in FIG. The surface 3a comes into contact with the wiper 18 and starts to scrape off the attached dust 60a. At the same time, the wiper arm 17 is moved by the running force of the flight 3 as shown in FIG.
As shown in (1), the pin 16 provided on the bracket 15 is pivoted slightly downward with the pin 16 as a support shaft to escape, and the scraping of the wiper 18 is promoted.

Next, since the flight 3 advances on the lower running side, the wiper 18 escapes due to the running force and the end face of the flight 3 (shown on the lower surface on the lower running side) as shown in FIG.
3b, the attached dust 60a on the upper surface 3b is scraped off.

Thereafter, when the flight 3 and the wiper 18 are separated from each other, the force of the counterweight 19 causes the wiper area to move.
The program 17 comes into contact with the stopper 22 and automatically returns to the original position, and waits for the next flight 3.

The flight (scraper) according to the present embodiment has the above-mentioned effect and is formed in a substantially rectangular cross section which is well combined with the present cleaner device. The present invention is not limited to this, and may be a general plate shape.

The wiper is not limited to a brush-like brush or a rubber plate, but may be a rotary brush. In short, after the wiper comes into contact with the scraping surface 3a, the wiper escapes from the base of the scraping surface 3a toward the tip. Such a flexible configuration may be used.

Of course, the flight conveyor 1 of the present embodiment is convenient for the discharge without water of the rack type dust removing apparatus, but is not limited to this, and can be applied to a general discharge or transport conveyor. It is.

[0039]

According to the present invention, a cleaning device that intermittently cleans a scraped surface of a flight traveling intermittently, particularly at a low speed, by using the traveling force to clean the adhered load and then escape. Therefore, it is possible to completely clean and remove the attached load without installing high pressure water or the rotating force of the rotating brush, and can be installed at any place on the downward running side.

In particular, since the wiper cleans while escaping from the base of the flight toward the tip, it is convenient for cleaning on the lower running side of the flight conveyor.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an operation explanatory view.

FIG. 4 is an operation explanatory view.

FIG. 5 is an operation explanatory view.

FIG. 6 is an overall side view of a conventional rack-type dust remover.

FIG. 7 is an enlarged detail view of a portion A in FIG. 6;

8 is a view as viewed in the direction of the arrow B in FIG. 7;

[Explanation of symbols]

1 ... flight conveyor, 3 ... flight, 4 ... trough, 8
... Driving side sprocket, 17 ... Wiper arm, 18 ... Wiper, 19 ... Counter weight

Claims (3)

[Claims] An oscillating wiper is mounted on a downward running side of a sprocket for driving a chain of a flight conveyor.
A wiper arm is provided at one end of the wiper arm, the wiper contacting at least the scraping surface of the flight intermittently traveling on the flight conveyor, and a return member is provided at the other end of the wiper arm. A flight conveyor, wherein the wiper returns the wiper to wait for the next flight by the return member after the wiper scrapes off the load attached to the flight by the traveling force of the flight. Cleaner device. 2. A cleaner for a flight conveyor, wherein the cross section of the flight according to claim 1 is substantially square, and the trough of the flight conveyor has an upward U-shape. 3. A flight conveyer screen having a dust-injecting upper stall facing substantially the entire length of the trough according to claim 2.
Device.