JPH044825Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a crushing device capable of crushing reinforced structures such as concrete utility poles into sufficiently fine pieces.

<Prior art> Conventional examples of this type of crushing device include the following (Japanese Utility Model Publication No. 52-9070, Japanese Utility Model Publication No. 52-9070,
−9071 Publication, Jitsukō No. 52-48053, Jitsukōaki
53-14445 and Utility Model Publication No. 54-820).

That is, a pair of crushing plates are arranged facing each other,
For example, a utility pole is intermittently fed a fixed length between them, and the utility pole is crushed by the pressing force of a pair of crushing plates. Furthermore, the reinforcing bars exposed by the crushing are either manually cut with gas or cut into predetermined lengths using a cutter.
By repeating this process multiple times, one utility pole is crushed.

<Problems to be solved by the invention> However, in such a conventional crushing device, for example, a telephone pole is intermittently fed a fixed length between a pair of crushing plates, and the pole is crushed by the pressing force of the crushing plates. As a result, the crushing capacity is small, the concrete and reinforcing bars cannot be separated sufficiently, and the crushing process takes a long time, making it economically inferior.

The present invention has been developed in view of the above-mentioned circumstances, and an object of the present invention is to provide a crushing device capable of crushing concrete utility poles and the like into sufficiently fine pieces with improved crushing capacity.

<Means for Solving the Problems> Therefore, the present invention provides a conveying device for conveying objects to be crushed, a rotating body disposed above the conveying device and driven to rotate, and a device fixed to the rotating body. a fixed crushing member that is provided on the rotating body and crushes the object to be crushed by the rotational force of the rotating body; A movable crushing member for crushing objects is provided.

<Operation> Then, the object to be crushed is crushed by the fixed crushing member and the movable crushing member. In addition, by setting the gap between the movable crushing member and the conveying device smaller than the gap between the fixed crushing member and the conveying device, the movable crushing member can crush the object more finely, and the movable crushing member When an excessive reaction force is applied from the object to be crushed, the movable crushing member is moved to prevent jamming.

<Example> An example of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, a frame body 1 with a skeleton formed
An apron conveyor 2 serving as a conveying device is attached to extend substantially horizontally. As shown in FIG. 2, this apron conveyor 2 has a structure in which a firmly formed plate 2a is provided on a chain 2b. The chain 2b is connected to the frame body 1
It is slidably supported by a support frame 3 provided in the. The apron conveyor 2 is driven by an electric motor 4.

A movable roller 5 is provided on the frame body 1 above one side of the apron conveyor 2, and the movable roller 5 moves a reinforced concrete utility pole 7 as an object to be crushed onto the apron conveyor 2 by the urging force of a spring 6. It is starting to push towards. Furthermore, fixed rollers 8 are provided at the ends of the frame body 1 to support the telephone poles 7, as shown in FIG.

A case 9 with an open lower end is provided on the frame body 1 above the other end of the apron conveyor 2, and a crushing chamber is formed within this case 9. Inside the case 9, a rotating shaft 10 is connected to the apron conveyor 2.
A cylindrical rotating body 11 is attached to the rotating shaft 10 .

As shown in FIG. 2, a plate-shaped fixed impact blade 12 serving as a fixed crushing member is attached to the rotating body 11 so as to extend in the same direction as the rotating shaft 10. . Further, a shaft 13 is attached to the rotating body 11 at a position shifted by 90 degrees in the rotational direction with respect to the fixed impact blade 12, and a cylindrical movable impact blade 14 as a movable crushing member is attached to the shaft 13. is loosely fitted. Therefore, if an excessive reaction force of more than a predetermined value is applied from the utility pole 7 to the movable striking blade 14 during crushing, the movable striking blade 1
4 so that it can escape inward to the rotating body 11 by a predetermined amount,
It's summery.

Here, a predetermined gap is formed between the fixed impact blade 12 and the plate 2a of the apron conveyor 2 so that the reinforcing bars of the utility pole 7 do not get caught. Further, the gap between the movable striking blade 14 and the plate 2a is larger than the gap between the fixed striking blade 13 and the plate 2a when the movable striking blade 14 approaches the plate 2a as shown in FIG. , is set to be smaller.

The rotating body 11 is rotatably driven by an electric motor 15 attached to the outer wall of the case 9, as shown in FIG.

In addition, below the other end of the apron conveyor 2,
As shown in FIG. 1, a hopper 16 for receiving crushed concrete is provided, and a first belt conveyor 17 for conveying the concrete supplied from the hopper 16 is provided below the hopper 16. Further, above the hopper 16, a belt type magnetic separator 18 is provided which magnetically attracts and conveys reinforcing bars. In addition, belt type magnetic separator 1
A second belt conveyor 19 is provided to convey the reinforcing bars conveyed and supplied from 8.

Next, the effect will be explained.

As shown in FIG.
After placing it on utility pole 7, it is placed on utility pole 7 by apron conveyor 2.
is gradually moved to the left in FIG. 1 to supply the tip of the utility pole 7 into the case 9.

As shown in FIG. 2, the fixed impact blade 12 and the movable impact blade 14 collide with the utility pole 7 due to the rotational force of the rotating body 11 driven to rotate at high speed, causing the utility pole 7 to collide with the fixed impact blade 12 and the movable impact blade 14.
of concrete is crushed.

At this time, since the gap between the fixed impact blade 12 and the plate 2a is set to be relatively large, the concrete is prevented from being caught between the fixed impact blade 12 and the plate 2a. The impact blade 12 can crush the particles into relatively large particles.

Further, the gap between the movable striking blade 14 and the plate 2a is set smaller than that of the fixed striking blade 12, and the movable striking blade 14 is connected to the rotating body 11.
Because it is configured so that it can escape inward,
It has the following effects.

That is, the fixed impact blade 12 can crush concrete with a relatively large particle size into smaller particle sizes, and the fixed impact blade 12 can also separate concrete that cannot be separated from the reinforcing bars. can. Furthermore, if an excessive reaction force is applied to the movable striking blade 14 from the reinforcing steel or the concrete part, the movable striking blade 14 escapes a predetermined amount inward to the rotating body 11, so that the movable striking blade 14
It is possible to prevent reinforcing bars or concrete from getting stuck in the gap between 4 and the plate 2a.

In addition, since the utility poles 7 are continuously conveyed and crushed by the apron conveyor 2, the utility poles 7
can be efficiently crushed in a short period of time, and multiple utility poles can be processed simultaneously, greatly improving crushing processing capacity.

Then, the crushed concrete is dropped from the apron conveyor 2 to the hopper 16, and then
It is supplied to the belt conveyor 17 and transported.

On the other hand, the reinforcing bars are conveyed to the right in FIG. 1 while being attracted by the belt-type magnetic separator 18, and are supplied to the second belt conveyor 19.

FIG. 3 shows a modification of the movable striking blade 21.

That is, the shafts 21a are attached to the rotating body 11, and the movable striking blades 21 are attached to these shafts 21a.
It is designed to be installed so that it can swing freely.

The present invention can also be applied to crushing long concrete structures.

<Effects of the invention> As explained above, in the present invention, the rotating body is provided with a fixed crushing member and a movable crushing member so that the object to be crushed can be continuously crushed, thereby preventing the object from being caught. The material to be crushed can be efficiently and finely crushed while preventing this, and the crushing processing capacity can be greatly improved. In particular, when crushing reinforced concrete utility poles, the separation performance between concrete and reinforcing bars can be greatly improved while preventing the reinforcing bars from getting caught.

[Brief explanation of drawings]

Figure 1 is an overall view showing one embodiment of the present invention;
The figure is an enlarged view of the main parts same as the above, and FIG. 3 is an enlarged view of the main parts showing another modification of the embodiment. 2...Apron conveyor, 11...Rotating body, 1
2...Fixed striking blade, 14...Movable striking blade.

Claims (1)

[Scope of utility model registration request] A conveyance device that conveys objects to be crushed; a rotating body arranged above the conveyance device and driven to rotate; and a rotating body that is fixedly attached to the rotating body and crushes the objects to be crushed by the rotational force of the rotary body. It is characterized by comprising a fixed crushing member and a movable crushing member that is movably provided on the rotating body in a direction away from the object to be crushed and crushes the object to be crushed by the rotational force of the rotating body. crushing equipment.