JPH0580267B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a disk type crusher used for crushing wood, waste plastics, and the like.

<Prior Art> Conventionally, there are crushers as shown in Figs. 8 and 9 (Patent Application Publication No. 58-500890). This crusher includes a casing 3 fixed to a base 4 and having an input port 1 and a discharge port 2, and screws 5a, 5b, 5c rotatably mounted in parallel in the casing 3 at regular intervals. ，
... and a drive motor 6 which is connected to the screws 5a, 5b, 5c, . . . and rotates the screws 5a, 5b, 5c, . And 1
A spiral cutting blade 8a is formed on the outer surface of the shaft 7a of the screw 5a in a right-handed manner at a constant pitch.
A spiral cutting blade 8b is formed on the outer surface of the shaft 7b of the second screw 5b in a right-handed manner with the same pitch as above, and a spiral cutting blade 8c is formed on the outer surface of the shaft 7c of the third screw 5c. is formed in a left-handed manner with the same pitch as above.

Then, the first screw 5a is rotated counterclockwise and the second
By clockwise rotation of the third screw 5b and clockwise rotation of the third screw 5c, the tree stocks 9, 9, ... drawn in between the screws 5a, 5b, 5c, ... from the input port 1 of the casing 3 are compressed. After cutting, it is made into small pieces and discharged from the discharge port 2.

<Problems to be Solved by the Invention> However, in the above-mentioned conventional crusher, the number of cuts made by the opposing cutting blades 8a, 8b, 8c in one rotation of the screws 5a, 5b, 5c, . . . is one.
There is a problem that the number of times of crushing is small relative to the number of rotations of the screws 5a, 5b, 5c, . Further, in the conventional crusher described above, it is difficult to manufacture the cutting blades 8a, 8b, 8c in a spiral shape, and it is difficult to fix the cutting blades 8a, 8b, 8c to the shafts 7a, 7b, 7c. Therefore, screws 5a, 5b, 5
There is a problem in that it takes time and effort to manufacture c, . . . and increases the manufacturing cost.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a disk type crusher that is easy to manufacture and has high crushing efficiency by making the number of crushing times of opposing cuts at least two per rotation of the rotating shaft.

<Means for Solving the Problems> In order to achieve the above object, the disc type crusher of the present invention includes a casing having an input port and a discharge port, and at least two opposing rotating shafts rotatably attached to the casing. a shaft, and a cutting ring fixed to the outer circumferential surface of each of the rotating shafts, the cutting ring fixed to at least one of the rotating shafts cutting the object to be crushed by one revolution of the rotating shaft. The cutting ring is tilted in a fixed direction with respect to the at least one rotating shaft so as to reciprocate along the axial direction and crush the object with the cutting ring fixed to the other rotating shaft. It is characterized by what it does.

<Operation> When there are two rotating shafts, one cutting ring fixed to one rotating shaft at an angle can move 180 degrees from a predetermined initial position with respect to one cutting ring fixed to the other rotating shaft. Once during rotation, also from 180°
Approach it once more while rotating 360°. During this time, non-shredded materials such as wood and waste plastics that are input from the input port of the casing between the two rotating shafts are reciprocated along the axial direction by a cutting ring installed at an angle to the rotating shaft. I am made to do so. Therefore, the above-mentioned non-shredded material is sheared and crushed once on the outward journey and once on the return journey when the cutting rings of both rotating shafts approach each other. When the number of cutting rings is two or more, the number of times that one cutting ring fixed to one rotating shaft approaches the cutting ring fixed to the other rotating shaft during one rotation is twice on the outward trip. , 2 on the return trip
The maximum number of times will be 4 times. In this way, the wood or the like is cut two or more times in one rotation of the rotary shaft, thereby increasing the crushing efficiency. Also, the non-fragile material placed in the center of the casing is reciprocated by the inclined cutting ring, so that it is placed on one side of the crushing area, i.e.
Do not gather near the wall of the casing.

<Examples> The present invention will be described in detail below with reference to illustrated examples.

In FIGS. 1 and 2, 11 is a casing having an inlet 12 and an outlet 14, 15 and 16 are a pair of rotating shafts provided in the casing 11, and 17
is a drive motor that rotates the rotating shaft 15.

The input port 12 of the casing 11 is formed into a cut rectangular funnel shape as shown in FIG.
The discharge port 14 is formed to have a rectangular cross section. Both sides of the crushing part 13 of the casing 11 between the input port 12 and the discharge port 14 are formed into a semi-cylindrical shape. Inside the crushing part 13 of the casing 11 is a rotating shaft 1.
5 and 16 are arranged parallel to each other within the same horizontal plane. Both ends of each of the rotating shafts 15 and 16 are rotatably supported by bearings at the end of the casing 11, one end of one of the rotating shafts 15 is made to protrude from the casing 11, and a pulley 18 is fixed to this one end. This pulley 18 and the drive pulley of the drive motor 17 are connected by a belt 21. Further, the other end of the rotating shaft 15 protrudes from the casing 11, and a gear 22 is fixed to this other end. Further, one end portion of the other rotating shaft 16 is made to protrude from the casing 11, a gear 23 is fixed to this one end portion, and this gear 23 meshes with the gear 22 of the one rotating shaft 15. By doing so, the rotating shafts 15 and 16 rotate synchronously at the same rotational speed.

On the other hand, on the outer peripheral surfaces of the rotating shafts 15 and 16, there are a plurality of cutting rings 2 made of flat plates on one plane.
5, 25, . . . are fixed to each other by welding or the like, parallel to each other and tilted in a certain direction at a certain interval. Opposing cutting rings 2 of both rotating shafts 15, 16
5, 25, ... are the rotating shafts 1 as shown in Figures 1 and 3.
5 and 16 are located on approximately the same plane with a rotation angle of 0°, and there is a slight gap between the tips. There is a slight gap between the outer periphery of the cutting rings 25, 25, . Further, the opening of the input port 12 of the casing 11 is connected to the rotating shafts 15, 1.
Open only the opposite side portions of the first and third
As shown by the solid line arrows in the figure, which indicate that the rotating shafts 15 and 16 rotate in opposition to each other, the rotating shafts 15 and 16 are rotated inward and the wood etc. from the input port 12 is placed between the rotating shafts 15 and 16. Only guide the rotating shafts 15, 16
and the casing 11 so that no force is applied to the casing 11 from the wood or the like.

According to the above configuration, during one rotation of the rotating shaft 15, the cutting ring 25 provided at an angle on the rotating shaft 15 acts so that the material to be crushed reciprocates along the axial direction of the rotating shaft. do. Similarly, the rotating shaft 16
The cutting ring 25 provided at an angle also acts so that the object to be crushed reciprocates along the axial direction of the rotating shaft during one rotation of the rotating shaft 16. Therefore, when the rotating shafts 15 and 16 are rotated in opposite directions, forces from opposite directions are applied to the object to be crushed by the cutting rings of the respective rotating shafts 15 and 16, and both rotating shafts 15 , 16 are compressed and crushed when they approach each other.

Note that the cutting ring 25 of one of the rotating shafts 15 and 16 may be provided at right angles to the rotating shaft,
In this case, the compressive force is smaller than in this embodiment in which both cutting rings are inclined.

Next, the operation of the disk crusher having the above configuration will be explained. First, a pair of cutting rings 2 shown in FIG.
The operation of only 5A and 25C will be explained. It is assumed that the pair of cutting rings 25A and 25C are parallel to each other and the rotation angle is 0°, and that the rotating shafts 15 and 16 rotate in opposite directions and the cutting ring 25A and 25C are parallel to each other and the rotation angle is between 0° and 180°. After 25C approached, they separated and crossed each other once. When the rotation angle was between 180° and 360°, they approached again, then separated and crossed each other once, and in the end,
The wood or the like is crushed twice by one rotation of the rotating shafts 15 and 16. Furthermore, when the cutting ring 25C on one rotating shaft 15 side is pushing the wood, etc. to the left, the cutting ring 25A on the other rotating shaft 16 side is pushing the wood, etc. to the right, so the force applied to the wood cancels out. Therefore, the force applied to the end of the casing is eliminated, and its wall thickness can be reduced.

Next, the operation of a combination of one cutting ring and three cutting rings will be explained. As shown in FIGS. 3 to 7, the rotating shafts 15 and 16 rotate in opposite directions, and when the rotation angle is between 0° and 90°, the cutting rings 25A and 25C approach each other. Crushing is carried out at 25A and 25C. Further, when the rotation angle is between 90° and 180°, the cutting rings 25A and 25C separate, but the cutting rings 25A and 25D approach each other, and the cutting rings 25A and 25D perform crushing. Further, when the rotation angle is between 180° and 270°, the cutting rings 25A and 25D separate, but the cutting rings 25A and 25C approach each other, and both cutting rings 25A and 25C perform crushing, and the rotation angle changes.
The cutting rings 25A and 25C separate between 270° and 360°, but the cutting rings 25A and 25B approach to perform crushing. As a result, the wood or the like is crushed four times in one rotation of the rotating shafts 15 and 16.

In this way, since the crushing process is performed four times during one rotation of the rotating shafts 15 and 16, crushing efficiency can be improved. In addition, the plate-shaped cutting rings 25, 25, ... can be manufactured more easily than screw blades, and the rotating shaft 1
5, 16 can be easily fixed.

In the above embodiment, the rotating shafts 15 and 16 are rotated in synchronization with each other, and the cutting rings 25 and 2 are rotated in synchronization with each other.
5, . The cutting rings 25, 2 may be independently rotated by separate motors at arbitrary rotation speeds.
5,... may be attached at any angle with respect to each rotating shaft.

<Effects of the Invention> As is clear from the above description, the disk crusher of the present invention includes a casing having an input port and a discharge port, and at least two opposing rotating shafts rotatably attached to the casing. and a cutting ring made of a flat plate on one plane fixed to the outer circumferential surface of each of the rotating shafts, the cutting ring fixed to at least one of the rotating shafts being covered by one rotation of the rotating shaft. to the at least one rotating shaft so that the crushed object is reciprocated along the axial direction of the rotating shaft and the crushed object is crushed between a cutting ring fixed to another rotating shaft; Since the blades are inclined in a fixed direction, the crushing process can be performed at least twice per rotation, and the crushing efficiency can be improved. Further, according to the present invention, since the object to be crushed is reciprocated along the axial direction by the cutting ring which is tilted and fixed to the at least one rotating shaft, the object to be crushed is only on one side of the casing. They do not gather together and do not cause a decrease in crushing efficiency during crushing work. Furthermore, since the disc type crusher of the present invention has the cutting ring fixed to the outer peripheral surface of the rotating shaft, there is no need to form the cutting blade into a spiral shape as in the conventional example, and the machine can be manufactured easily and inexpensively.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the present invention, Fig. 2 is a perspective view of the above embodiment, Figs. 3 to 7 are explanatory diagrams of the engaged state of the cutting ring, and Figs. 8 and 9. 1 is a diagram showing a conventional example. 11...Casing, 12...Inlet, 14...
...Discharge port, 15, 16... Rotating shaft, 25... Cutting ring.

Claims (1)

[Claims] 1. A cutting ring consisting of a casing having an inlet and an outlet, at least two opposing rotating shafts rotatably attached to the casing, and a flat plate on one plane fixed to the outer peripheral surface of each of the rotating shafts. The cutting ring fixed to at least one of the rotating shafts reciprocates the object to be crushed along the axial direction of the rotating shaft in one rotation of the rotating shaft, and is fixed to the other rotating shaft. A disk-type crusher, characterized in that the disk-type crusher is inclined in a fixed direction with respect to the at least one rotating shaft so that the object to be crushed is crushed between the cutting ring and the cutting ring.