JP4358173B2 - Garbage processing machine - Google Patents

Description

  The present invention relates to a garbage processor, and more particularly to a stirrer for a garbage processor.

  Garbage disposal machines are used as a means for processing organic matter such as garbage and excrement discharged from restaurants, factories, hotels, and the like. In this processing method using a garbage disposal machine, organic matter such as garbage is put into the treatment tank of the garbage disposal machine and stirred together with the microbial bed material filled in the treatment tank to promote fermentation by microorganisms. It is decomposed into water and carbon dioxide, etc., and further garbage is thrown into it and stirring and fermentation are repeated. The produced carbon dioxide is released into the atmosphere, and the moisture is treated with sewage and remains. A small amount of residue is taken out and used as fertilizer or discarded (see Patent Document 1 below).

The inside of the processing tank of garbage disposal is provided with stirring blades for stirring the garbage or the like with microbes landing member, the agitation拌羽roots are fixedly provided on the stirring shaft, provided in the front wall and the rear side wall of the processing tank The rolling bearing is supported so as to be rotatable about a horizontal axis. Naturally, the garbage to be put in varies in size and shape, and there are not only finely cut pieces but also large volumes and long shapes. These raw garbages are difficult to stir with a stirring blade, and as a result of applying a large load to the stirring shaft and applying stress such as bending, tension, and twisting, the stirring shaft is easily broken and difficult to use for a long time.

JP 2001-276786 A

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a garbage disposal machine that can withstand long-term use without reducing the strength of the stirring shaft.

In order to achieve the above object, the garbage processing machine according to the present invention is provided on the front side wall and the rear side wall of the processing tank outside the processing tank and the processing tank for decomposing the garbage with microorganisms. microorganisms and rolling ball bearings stirring shaft that is pivotally supported pivot in a substantially horizontal axis around a stirring blade which is fixed to the stirring shaft, the stirring blades rotating, the garbage in the treatment tank In a garbage processing machine that stirs together with the flooring material, a sliding bearing that pivotally supports the stirring shaft is provided in the processing tank, and the front of the rolling ball bearing provided on the front wall outside the processing tank. position, and in the rear position of the rolling ball bearing provided on the rear wall, it is the self-aligning ball bearing for supporting the front and rear ends of the stirring shaft rotatably configuration respectively.

Further, in the above configuration, the slide bearing is made of gunmetal .

According to the garbage processing machine of the present invention, since the stirring shaft is rotatably supported by the slide bearing in the processing tank, that is, between the front and rear rolling ball bearings, the amount of deformation of the stirring shaft is reduced. In addition, since the both ends of the stirring shaft whose bending deformation amount is reduced in the treatment tank is supported not only by the rolling ball bearing but also by the self-aligning ball bearing, it can be rotated, so that the garbage and microorganisms can be implanted. When stirring the material, it is operated in a state in which garbage is entangled in the stirring blade and a rotational load is applied. The period can be used.
Since the rolling ball bearing and the front and rear self-aligning ball bearings are used, the rolling ball bearings on the front side wall and the rear side wall of the processing tank are bent when the stirring shaft is bent under a rotational load in the processing tank. Acts as one of the fulcrums of the agitation shaft, and the front end portion and the rear end portion of the agitation shaft located further forward and rearward than the rolling ball bearing are in a state where the shaft center is inclined from the horizontal. At this time, the self-aligning ball bearing can support the stirring shaft appropriately even if the shaft center of the stirring shaft is inclined due to the self-aligning property. Therefore, even if the stirring shaft is subjected to a rotational load and the shaft center is inclined from the horizontal at the front and rear ends of the stirring shaft, the stirring shaft and the self-aligning ball bearing are not damaged, and the strength of the stirring shaft is not reduced. .

Further, when the slide bearing is made of gunmetal, the gunmetal is made of a soft metal, so that the stirring shaft is hardly damaged. Further, the sliding bearing is not rusted by water supplied to activate moisture from the garbage or aerobic microorganisms, and the gun metal is resistant to wear, so that the strength of the sliding bearing can be increased .

The best embodiment of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention. FIG. 1 is a cross-sectional view of a garbage disposal apparatus according to an embodiment of the present invention, and is a cross-sectional view taken along line BB in FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a partially enlarged view of the garbage processing machine according to one embodiment of the present invention.
In each figure, the garbage processing machine 1 according to this embodiment includes a processing tank 3 for decomposing the garbage, and a tray 16 for receiving the residue, water, etc. of the garbage decomposed below the processing tank 3. It is installed in the body-like casing 2.

The treatment tank 3 has a structure in which two treatment tank bodies 7 having a substantially U shape in front view are provided side by side. In each processing tank main body 7, a stirring shaft 15 in which a plurality of stirring blades 14, 14, 14,... Are fixed is outside the processing tank 3 and the front side wall 4 and the rear side of the processing tank 3. The first bearings 6 and 6 provided on the side walls 5 are pivotally supported around the horizontal axis C so as to be rotatable. Furthermore, second bearings 17 and 17 are provided at the front and rear positions of the first bearing 6 outside the tank of the processing tank 3 to pivotally support the front end portion and the rear end portion of the stirring shaft 15, respectively. Yes.

As shown in FIG. 3, the first bearing 6 is a rolling ball bearing 26 such as a single row deep groove ball bearing, and the second bearing 17 is a self-aligning ball bearing 27. Self-aligning ball bearings 27 , 27 are second bearings outside the processing tank 3 and at the front position of the rolling ball bearing 26 provided on the front side wall 4 and the rear position of the rolling ball bearing 26 provided on the rear side wall 5. It is installed via support stands 19 and 19. The balls 30, 30, 30,... Of the self-aligning ball bearing 27 are double rows and are held between the outer ring 28 and the inner ring 29, the inner race 21 of the outer ring 28 is a spherical surface, and the center of curvature is the center of the bearing. Is consistent with

Stirring shaft 15 is adapted to Ru being rotated by a driving motor 24 which is drivingly connected by a chain or the like. In addition, a large number of through-holes 8, 8, 8,... Having a hole diameter of 1 cm, for example, are provided on the bottoms of the treatment tank bodies 7, 7 so that residues and the like fall on the tray 16. Pipings 18 and 18 each having a top opening formed in a funnel shape are installed below the through hole 8 and at the front and rear of the bottom surface of the treatment tank 3.

  A gunmetal slide bearing 10 that pivotally supports the stirring shaft 15 is provided at the front and rear central portions in the treatment tank 3, and the slide bearing 10 is supported by a support member 11 via a stainless steel bearing holder 12. Supported. That is, a support member 11 is provided which is provided between the left and right side walls at the front and rear central portions in the processing tank 3 and whose legs protrude from the connecting portion of the two processing tank main bodies 7. A sliding bearing holder 12 that holds the sliding bearing 10 is screwed to the support member 11. The slide bearing holder 12 is made of stainless steel, is formed in a substantially square shape when viewed from the front, is divided into two members along a diagonal line, and a cylindrical hole for holding the slide bearing 10 is formed at the center of the square. Yes. After the sliding bearing 10 is accommodated and held in the hole, the two members are screwed together.

The operation of the garbage disposal machine 1 will be described below.
Garbage or the like input from the input port 9 is stirred by the rotation of the stirring blade 14 together with the microbial flooring material 13 such as buckwheat husk, and the fermentation is promoted, and gradually decomposes into water, carbon dioxide gas, and the like. Ferment. Garbage residue and water generated in the treatment layer 3 are led to the pipe 18 through the through hole 8 and stored in the tray 16.

Here, when a large volume or a long shape of the garbage to be thrown in is entangled with the stirring blade 14, a large load is applied to the stirring shaft 15, and stress such as bending, tension, and twisting is applied. 15 is rotatably supported by the slide bearing 10 in the treatment tank 3, that is, between the front and rear first bearings 6 and 6, so that the amount of bending deformation of the stirring shaft 15 is reduced and the stirring shaft 15 is deformed. There are few such things. Further, since the sliding bearing 10 is made of a soft metal, the stirring shaft 15 is not easily damaged, and even if garbage enters the sliding bearing 10, it can be easily removed from the sliding surface, as in the case of using a rolling ball bearing. There is no case where the garbage stays in the deep groove in the bearing and the stirring shaft 15 becomes difficult or impossible to rotate.

  Further, since the sliding bearing 10 is made of gunmetal, the sliding bearing 10 is not rusted by water supplied to activate moisture from garbage or aerobic microorganisms, and the gunmetal is also resistant to wear. Therefore, the strength of the slide bearing 10 can be increased.

  The stirring shaft 15 whose bending deformation amount is reduced by the sliding bearing 10 in the processing tank 3 is further supported at both ends not only by the first bearings 6 and 6 but also by the second bearings 17 and 17. Therefore, when the garbage and the microbial flooring material 13 are agitated, the garbage is entangled with the stirring blade 14 and is operated in a state where a rotational load is applied. Even if the agitation shaft 15 is subjected to bending, tensile or torsional stress, The strength of the shaft can be maintained high, it is hard to break and can be used for a long time.

And since the 1st bearing 6 is the rolling ball bearing 26 and the 2nd bearing 17 is the self-aligning ball bearing 27, as shown notionally in FIG. in when flexed undergoing rotational load acts rolling ball bearings 26, 26 provided on the front portion and the rear lateral deviation of the stirring shaft 15 as one of the fulcrum of deflection of the stirring shaft 15, respectively, the rolling ball bearings 26, 26 Further, the front end portion and the rear end portion of the stirring shaft 15 at the front and rear are in a state where the shaft center is inclined from the horizontal due to the bending of the stirring shaft 15. At this time, the self-aligning ball bearing 27 can support the stirring shaft 15 appropriately even if the shaft center of the stirring shaft 15 is inclined due to the self-aligning property. Therefore, even if the rotational load is applied to the stirring shaft 15 and the axial center C is inclined from the horizontal at the front and rear end portions of the stirring shaft 15, the stirring shaft 15 and the self-aligning ball bearing 27 are not damaged. Does not decrease the strength.

  Incidentally, FIG. 4B shows a stirring structure of a conventional garbage processing machine, and only the first bearings 6 (26) and 6 (26) of the stirring shaft 15 are provided on the front and rear side walls 4 and 5 of the processing tank 3. In this example, the deflection of the stirring shaft 15 as a whole is very large, and the load on the stirring shaft 15 is high.

  Further, since the inner race 21 of the outer ring 28 of the self-aligning ball bearing 27 shown in FIG. 3 is a spherical surface and the center of curvature coincides with the center of the bearing, the self-aligning ball bearing 27 can be attached to the treatment tank 3. Even if there is a mounting error, the bearing center and the shaft center are automatically adjusted, and the self-aligning ball bearing 27 itself is hardly damaged.

  In the above embodiment, the slide bearing is made of gunmetal. However, the slide bearing of the present invention is not limited to this, and for example, soft iron such as cast iron, brass, bronze, alloy, white metal, aluminum alloy, and cadmium alloy. In addition to metals, iron, steel, stainless steel, carbon graphite, synthetic resin, ceramic, or the like may be used. Moreover, what is decomposed | disassembled by this invention is not limited to raw garbage, such as cooking waste, a leftover, a fresh flower, and a tea-shell, A filth etc. are also included. In addition, the microbial flooring material is not limited to buckwheat husks, and may be, for example, rice husks, semi-carbonized chips, natural natural porous stones, synthetic fiber bundles, and the like. Further, the slide bearing holder is not limited to stainless steel, and may be steel, copper, nickel, titanium, magnesium, and alloys thereof.

Further, the rolling ball bearings 26 and 26 constituting the first bearings 6 and 6 are not limited to single row deep groove ball bearings, but are radial such as double row deep groove ball bearings, single row or double row counter bore ball bearings and angular contact ball bearings. a bearing or thrust bearing but it may also.

It is sectional drawing of the garbage processing machine which concerns on one Embodiment of this invention. It is an AA arrow directional cross-sectional view in FIG. It is a fragmentary sectional view of the garbage processing machine concerning one Embodiment of this invention. It is an operation | movement conceptual diagram of the stirring shaft concerning one Embodiment of this invention.

1 garbage disposal machine 3 treatment tank 4 the front wall 5 after the side wall 6 first bearing 10 sliding bearings 14 stirring blades 15 a stirring shaft 17 the second bearing 26 rolling ball bearing 27 self-aligning ball bearing C axis

Claims (2)

A processing tank that decomposes raw garbage with microorganisms , and a rolling ball bearing provided on each of the front side wall and the rear side wall of the processing tank outside the processing tank so as to be rotatable about a substantially horizontal axis. comprises a stirring shaft, a stirring blade which is fixed to the stirring shaft, the stirring blades rotating in garbage disposal of garbage in the treatment tank is stirred with microorganisms landing member, rotatable stirring shaft in is provided on the sliding bearing processing bath for supporting, in a bath outside of the processing tank, before the forward position of the rolling ball bearing provided on the side walls, and a rearward position of the rolling ball bearing provided on the rear wall, wherein A garbage disposal machine, comprising self-aligning ball bearings that pivotally support a front end portion and a rear end portion of a stirring shaft. The garbage processing machine according to claim 1, wherein the sliding bearing is made of gunmetal.

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