JPH08244928A - Cylindrical shoot - Google Patents

Abstract

PURPOSE: To immediately start inspection work by rotating a rotary shoot and moving this to a position not disturbing the inspection of a mechanical device when the mechanical device is to be inspected and to enable frictional coupling between the rotary shoot section and a fixed shoot section. CONSTITUTION: For a fixed shoot section 11 and a rotary shoot section 12 constituting a cylindrical shoot 1, flanges 11b and 12b having inclined surfaces of specified degrees face each other and an elastic gasket 6 is provided between the flanges having these inclined surfaces. The rotary track of the lower end surface A of a rotary shoot 12 has a curvature drawing a tangent touching the inclined surface of a fixed shoot via the gasket 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, when crushed industrial or general waste is put into a crusher, or raw materials such as grain, steel stone, and sand at an import port are conveyed to a warehouse by a spiral conveyor. In some cases, the present invention relates to a tubular chute for guiding and conveying a conveyed object which is introduced from the input hopper toward the crusher, the conveyer, and the like.

[0002]

2. Description of the Related Art Conventionally, for example, when throwing industrial or general waste into a crusher, a cylindrical chute is provided below a charging hopper, and a mechanical device such as a crusher is provided at the lower end of this chute. It is arranged in communication with this chute. The cylindrical chute has an upper end communicating with a charging hopper and a lower end opening of the chute communicating with a crusher.This connecting structure has a connecting flange formed at a lower end of the sheet. The outer case of the crusher is also provided with a connecting flange on the upper surface. Both flanges are joined and tightened with several or several tens of bolts and nuts to connect this chute to the crusher. I am doing it.
On the other hand, in the case of maintenance work such as crusher failure or replacement of parts due to wear over time and other periodic inspections, the presence of this cylindrical chute interferes with inspection work. The cylindrical chute was removed from the outer case of the crusher, and after that, work such as repair of the crusher was started.

[0003]

By the way, it is troublesome to remove a large number of bolts and nuts every time the inspection is performed and to remove the chute, and since a large chute is heavy in itself, it is difficult to remove it. Cranes and heavy equipment are required, which increases the cost of inspection.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cylindrical chute that can be easily and easily moved to a position where it does not interfere with the repair or inspection of a mechanical device.

[0005]

A feature of the present invention is that a tubular chute is divided into a fixed chute portion and a rotating chute portion, and the fixed chute portion is an upstream portion having the charging opening. The rotary chute part is a downstream part continuous to the mechanical device, and is rotatably connected to the mechanical device about a rotation axis, and the fixed chute part and the rotary chute part are: Elastic packing is interposed between the inclined surfaces, and the rotation locus of the lower end portion of the rotary chute portion is tangential to the inclined end surface of the fixed chute portion through the packing. It is in the curvature of drawing.

Another feature is that a flange is formed on the inclined surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment applied when throwing wastes into a crusher will be described below with reference to the drawings.

The cylindrical chute 1 has a cylindrical shape, a rectangular cylindrical shape, or a polygonal cylindrical shape. The charging opening at the upper end of the cylindrical chute 1 communicates with the charging hopper 2, and the lower opening is a mechanical device such as a crusher. It communicates with machine 3. The charging hopper 2 is inserted and fixed in the opening of the floor 4.

The tubular shout 1 is composed of an upper fixed chute portion 11 and a lower rotary chute portion 12, and this fixed chute portion is an upstream portion having an opening for charging at an upper end thereof. The connecting flange 11a is integrally formed with the connecting flange 11a. The connecting flange 11a is joined to the connecting flange 2a of the charging hopper 2 and is connected to the charging hopper by bolts and nuts. Rotating chute section 12
Is a downstream portion that is continuous with the crusher 3, and the connecting structure between the rotating chute portion and the crusher has a shaft support portion protruding from the right end portion of the upper surface of the case 31 of the crusher and the rotating portion. A shaft support piece 12a protruding from the lower right side surface of the chute portion is rotatably connected, that is, hinged, around the rotation shaft 5. The case 31 of the crusher 3 has an opening for charging, which is normally covered by the lower end of the rotary chute 12 and serves as an opening for repairing or inspecting the crusher.

Fixed chute 11 and rotary chute 12
Are opposed to each other with inclined surfaces having a predetermined angle, and flanges 11b and 12b are formed on both inclined surfaces,
An elastic packing 6 made of sponge, rubber, felt, or the like is attached to at least one outer surface of the flange of the inclined surface by an adhesive or a fixing pin, and is interposed between the both flanges.

The rotation locus of the lowest position, that is, the lower end A, which is the left end portion of the inclined surface of the flange 12b of the rotary chute portion 12, that is, the rotation locus of the lower end portion A, is tangential to the inclined end surface of the flange 11b of the fixed chute portion 11 via the packing 6. Is the curvature of drawing.

Fixed chute 11 and rotary chute 12
The inclination angle θ of is correlated with the locus of rotation of the low end surface A, that is, the distance R between the rotary shaft 5 and the low end surface A, and this relationship is as follows.

Θ R (mm) 30 820 35 630 45 570 60 500 Next, the operation of the present invention will be described. Waste is always fed from the feeding hopper 2 and guided by the cylindrical chute 1 to the inside of the crusher 3. It is loaded into the mine, crushed and separated, and incinerated or compressed.

When the crusher 3 is inspected or repaired, when the rotary chute 12 is rotated clockwise about the rotary shaft 5, the rotary chute becomes the state shown by the chain line, and therefore the crusher 3 The upper surface opening of the case 31 is exposed, and the existence of the rotating chute does not hinder the inspection. To rotate the rotating chute unit 12,
Whether it is pulled or pushed in the rotating direction, if this rotating chute is large and heavy, install a hydraulic cylinder as a dedicated rotation drive means and rotate the tip of the piston of this cylinder to this rotating chute. When the piston is expanded and contracted, the rotary chute can be rotated clockwise or counterclockwise to return to its original position. Of course, it is also possible to use a winch tool. After the inspection is completed, the rotating chute portion 12 is rotated counterclockwise. At this time, the packing 6 interposed between the flanges 11b and 12b is
The two flanges are compressed and deformed, and the two flanges frictionally join each other. Therefore, the fixed chute portion 11 and the rotating chute portion 12 can safely maintain the joined state by this frictional joining without a special stopper. Of course, a simple stop, such as a clip, may engage the flanges 11b, 12b for double safety.

[0015]

According to the present invention, when a mechanical device is inspected or repaired, the rotary chute is rotated to easily move the mechanical device to a position where it does not interfere with the inspection of the mechanical device in a short time. Therefore, the maintenance work can be immediately started, and the rotary chute portion and the fixed chute portion can be frictionally joined to each other.

[Brief description of drawings]

FIG. 1 is a front view.

[Explanation of symbols]

1 Cylindrical chute 11 Fixed chute part 11b Flange 12 Rotating chute part 12b Flange 2 Loading hopper 3 Mechanical device (crusher) 5 Rotating shaft 6 Elastic packing A Position of the lower end of flange of rotating chute part θ Fixed chute part and Inclination angle of rotating chute R Distance between rotating shaft 5 and low end face A

Claims (2)

[Claims] 1. A cylindrical chute in which an opening for charging is provided above and a lower end opening is in communication with a mechanical device, wherein the cylindrical chute includes a fixed chute portion and a rotating chute portion, The fixed chute portion is an upstream portion having the charging opening, and the rotary chute portion is a downstream portion continuous with the mechanical device and is rotatable around the rotary shaft in the mechanical device. The fixed chute portion and the rotating chute portion face each other with an inclined surface having a predetermined angle, and elastic packing is interposed between the inclined surfaces to rotate the lower end surface of the rotating chute portion. The cylindrical chute is characterized in that the locus has a curvature that draws a tangent line that contacts the inclined end surface of the fixed chute portion through the packing. 2. A cylindrical chute characterized in that a flange is formed on the inclined surface.