JP2571435B2 - Belt cleaner for cylindrical belt conveyor - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a belt cleaner for a cylindrical belt conveyor.

[Conventional technology and its problems]

In general, a cylindrical belt conveyor is a belt conveyor in which a cylinder is formed by joining both ears of a belt in a lap shape, or by projecting both ears of the belt outward and joining each other, and forming sand, coal, or the like. It has the feature that it can transport wet or viscous powders and loose materials such as ores without being spilled or scattered, without being exposed to wind, rain and sunlight, and even on steep slopes.

As described above, since the cylindrical belt conveyor is sometimes used while exposed to the outside air, rain, snow, dust, and the like adhere to the outer periphery of the carrier-side belt. The adhered matter is carried to the belt and adheres to a head pulley or the like, causing a problem that the belt slips or meanders.

On the other hand, in a normal belt conveyor (for example, a trough-type belt conveyor), when conveying tacky bulk materials, a part of the goods adheres to the surface of the belt (the side on which the goods are placed), and this is a snub pulley. , Bend pulleys, return rollers, etc., and change the diameter of these pulleys and rollers, causing the belt to swing up and down and even damage the belt. A belt cleaner of a rotary brush type, a high pressure washing type, or the like is used. For example, this scraper-type belt cleaner uses a rubber plate to scrape off and clean the belt surface with a belt tension and a force pressing the rubber plate.

By the way, in the conventional cylindrical belt conveyor, rain, snow, dust and the like adhere to the outer periphery of the carrier side belt as described above. For this reason, a cover is provided so that these adhered substances are not adhered. (A) A belt cleaner as shown in (b) is additionally provided. This belt cleaner uses a frame at a position where the belt 3 is formed in a cylindrical shape.
It has a structure surrounded by a rubber plate 6 ′ attached to 15.

Therefore, in such a belt cleaner of a cylindrical belt conveyor, the belt tension does not act on the belt cleaner unlike the belt cleaner of a normal belt conveyor only by utilizing the elasticity of the rubber plate 6 '. ′ Does not exert sufficient scraping force, resulting in incomplete cleaning. Further, if the rubber plate 6 ′ is worn, a gap is formed and it becomes impossible to clean the attached rainwater.

[Means for solving the problem]

Therefore, the present invention has been created to solve such a problem, and the gist of the present invention is that it is suspended by a tail pulley and a head pulley, and is developed from a cylindrical shape to a flat shape by these pulleys. In a cylindrical belt conveyor having a trough converter, a belt cleaner such as a rubber plate or a rotating brush constantly pressed by a belt is provided in the trough converter.

〔Example〕

The structure and operation of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings together with the operation.

1 is a side view of an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a cross-sectional view of FIG.

In these drawings, reference numeral 1 denotes a cylindrical belt conveyor. The cylindrical belt conveyor 1 is made of a flexible material such as rubber, and is shown at the bottom and side of the cylindrical belt conveyor 1. However, one or a pair of shape-retaining rollers are opposed to each other, a pair of shoulder rollers are opposed to the shoulder, and a pair of guide rollers are opposed to the ears to form a palm joint. The sheet is pressed by one pressing roller to form a so-called palm-shaped cylindrical belt conveyor. The conveyed cylindrical belt conveyor 1 has a transport capacity of, for example, a belt width of 400 mm to 2600 mm (therefore, a cylindrical inner diameter of 1 mm).
From 00mm to 700mm), transfer speed from 40m / min to 250m / min
In addition, it can be installed outdoors.

The conical cylindrical belt conveyor 1 is suspended between a tail pulley (not shown) and a head pulley 2. When the belt 3 reaches the position of the head pulley 2, the belt 3 is developed from a trough shape to a flat shape, and the conveyed material is conveyed. To discharge. That is,
The belt 3 which has been cylindrical until now is formed into a trough, and then formed into a flat shape, forming a so-called trough conversion section 4.

In this embodiment, the following belt cleaner 5 is attached to the outside of the belt 3 on the carrier side in the trough converter 4. That is, as shown in FIG. 3, the belt cleaner 5 has a rubber plate 6 conforming to the cross-sectional shape (a trough shape) of the belt 3, a substrate 7 having the rubber plate 6 attached thereto, The support pipe 8 has a support pipe 8 to which the support pipe 7 is fixed, a rod 10 for supporting the support pipe 8 on a bracket 9, and a spring 11 provided between the support pipe 8 and the bracket 9. A receiving tray 12 is provided below the belt cleaner 5, and a discharge tube 13 is suspended from the bottom of the receiving tray 12.

In FIG. 1, reference numeral 14 denotes a snub pulley, and reference numeral 16 denotes a belt cleaner on the belt surface side, which is the same as the belt cleaner of a normal trough belt conveyor.

Thus, the belt tension acts on the portion where the shape is changed from the cylindrical shape to the flat shape, so that the rubber plate 6 to which the pressing force is applied by the spring 11 is brought into close contact with the tension portion,
Deposits d such as rainwater, snow, and dust adhered and carried on the outer periphery of the cylindrical belt 3 can be scraped off by the rubber plate 6 in a uniform close contact state. Collected in 12 and can be discharged. As a result, the deposit d is not carried to the head pulley 2 and does not move to and adhere to the head pulley 2.

Since the rubber plate 6 is always pressed by the spring 11 even if worn, there is no gap between the outer surface of the belt 3 and the rubber plate 6, and the attached matter d can be always scraped off.

Note that the present invention is not limited to the above-described convoluted cylindrical belt conveyor, but can be applied to other wrapped cylindrical belt conveyors, for example. Further, the belt cleaner is not limited to the scraper type rubber plate, but may be a rotary brush type belt cleaner to which a pressing force is applied by a spring or the like. In addition, it may be installed not only on the carrier side but also on the return side, or a plurality of them may be installed.

〔The invention's effect〕

ADVANTAGE OF THE INVENTION According to this invention, since the adhering substance which adhered to the outer periphery of the cylindrical belt conveyor is scraped off and cleaned by the belt cleaner at the trough conversion section of the belt, the cylindrical belt conveyor can be operated normally, and can be safely outdoors. Can be installed.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a sectional view taken along the arrow A of FIG. 1, and FIG.
(B) is a sectional view of a conventional example. 1 ... cylindrical belt conveyor 2 ... head pulley 3
... belt, 4 ... trough converter, 5 ... belt cleaner.

Claims (1)

(57) [Claims] 1. A cylindrical belt conveyor having a trough converting section which is suspended by a tail pulley and a head pulley and is developed from a cylindrical shape to a flat shape by these pulleys. A belt cleaner for a cylindrical belt conveyor, wherein a belt cleaner such as a pressed rubber plate or a rotating brush is provided.