JPH0360537B2 - - 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.

<Conventional technology> Conventionally, a disk type crusher has a casing having an input port and a discharge port, and a casing rotatably attached to the casing in parallel with the casing and located on the same plane with a rotation angle of 0° on the outer periphery. Some cutting rings are equipped with a rotating shaft on which a plurality of cutting rings are tilted and fixed, and a drive motor that synchronizes and rotates these rotating shafts in mutually opposing directions by coupling them with gears or the like. After the rotation angle of the rotary shafts is set to 0°, the rotary shafts are rotated in opposite directions by the drive motor, and the wood, etc. is drawn from the input port of the casing between the mutually opposing cutting rings. The waste is compressed, cut into small pieces, and then discharged from the outlet.

<Problems to be solved by the invention> However, in the above-mentioned conventional disk type crusher,
When the rotary shaft is installed, if the rotation angle of the rotary shaft is shifted by, for example, 180 degrees, the cutting rings 3 and 5 of the opposing rotary shafts 1 and 2 will simply feed the wood etc. in the same direction as shown in FIG. There is a problem that it does not compress or crush.

Therefore, an object of the present invention is to provide a disk type crusher that can crush the rotating shafts without having to set them at a predetermined rotation angle by changing the rotational speed of the opposing rotating shafts, and that can simplify the operation of the crushing process. It is about providing.

<Means for Solving the Problems> In order to achieve the above object, the disc crusher of the present invention includes a casing having an input port and a discharge port, and a casing rotatably attached to the casing,
at least two rotating shafts facing each other; a rotating means for rotating the plurality of rotating shafts at different rotation ratios; It is characterized by having a cutting ring with a.

<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 hydraulic motor serving as a rotating means for rotating the rotating shafts 15 and 16.

The input port 12 of the casing 11 is formed into a funnel shape with a rectangular cross section, while the discharge port 14 is formed with 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 portion 13 of the casing 11, rotating shafts 15 and 16 are arranged parallel to each other within the same horizontal plane. Each of the above rotating shafts 1
5 and 16 are rotatably supported at the end of the casing 11 by bearings, etc., one end of one rotating shaft 15 is made to protrude from the casing 11, and the large gear 18 is fixed to this one end. The gear 18 and the small gear 21 fixed to the other rotating shaft 16 are meshed,
The small gear 21 is rotated by a hydraulic motor 17. The radius ratio of the large gear 18 and the small gear 21 is set to 2:1.

On the other hand, a plurality of cutting rings 25, 25, . . . made of plate material are fixed to the outer circumferential surfaces of the rotating shafts 15, 16 in parallel with each other at a constant interval and at a constant inclination angle by welding or the like. As shown in FIGS. 1 and 3, the cutting rings 25, 25, . 〓I try to leave some time. 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 opened only on the opposite sides of the rotating shafts 15 and 16, and the solid lines in FIGS. As shown by the arrow,
Rotate the rotating shafts 15 and 16 inward to open the input port 12.
The wood, etc. from the outside is guided only between the rotating shafts 15, 16, and does not go around between the rotating shafts 15, 16 and the casing 11, so that no force is applied to the casing 11 from the wood, etc.

In the disk type crusher having the above configuration, it is assumed that wood or the like is inserted between the pair of cutting rings 25A and 25C and crushed. First, a pair of cutting rings 25
Make sure that the rotation angle is 0° with A and 25C parallel to each other. Next, the hydraulic motor 17 is driven, and the rotating shafts 15 and 16 rotate in opposite directions at a rotation speed of 1:2. Then, while one rotating shaft 15 rotates from 0° to 180°, the other rotating shaft 16 rotates from 0° to 180°.
rotates once. Therefore, the opposing rotating shaft 1
The wood etc. between the cutting rings 25A and 25B of No. 5 and 16 are moved by one cutting ring 25A in the direction of the arrow shown by the solid line in FIG. The cutting rings 25A and 25 reciprocate in the direction of the arrow shown.
As shown in FIGS. 4a and 4b, C approaches, then separates, crosses each other once, engages, and crushes wood etc. once. Next, while one rotating shaft 15 rotates from 180° to 360°, the cutting rings 25A and 25B approach each other, move apart, and cross each other once, and in the end, while one rotating shaft 15 rotates once, the cutting rings 25A and 25B cut the wood twice. It is crushed, broken into pieces, and discharged from the discharge port 14 of the casing 11.

Next, assume that the rotation angles of the rotation shafts 15 and 16 deviate by 90 degrees during initial setting. One rotation axis 15 is from 0°
During the 90° rotation, the other rotating shaft 16 rotates from 90° to 270°, and the cutting rings 25A and 25B approach each other, then separate, cross each other once and engage, and one rotating shaft 15 rotates from 90° to 180°. During the rotation, the other rotating shaft 16 rotates from 270° to 90°, and the other cutting ring 25B overtakes the one cutting ring 25A, approaches the other cutting ring, moves away, crosses each other once, and then crosses the other cutting ring 25A once. While the rotating shaft 15 rotates from 180° to 360°, the other rotating shaft 16 rotates 90° from 90° to 360°, and the cutting rings 25A and 25B approach each other, then separate and cross each other once. The wood or the like is crushed three times by one rotation of one of the rotating shafts 15.

Next, suppose that the rotation angles of the rotation shafts 15 and 16 are further shifted by 180 degrees. While one rotating shaft 15 rotates from 0° to 180°, the other rotating shaft 16 rotates 180° from 180° to 360°, and after the other cutting ring 25B has overtaken the one cutting ring 25A, They face each other, approach, move apart, cross each other once, and engage, and then one of the rotating shafts 15 rotates from 180° to 360°, and the cutting ring 16 approaches, then separates, and crosses each other once, and in the end, the wood etc. rotates. One rotation of the shafts 15 and 16 results in crushing twice.

In this way, even if the rotation angles of the rotation shafts 15 and 16 deviate during initial setting, the rotation angles can be shredded without returning to 0°, and the shredding operation becomes easier.

In the above embodiment, the rotation ratio of the rotating shafts is set to 1:2, but this rotation ratio may be 1:1.25 or 1:3; in short, it is sufficient that the rotating speeds of the opposing rotating shafts are different. In any case, the cutting rings may cross each other and engage with each other, resulting in the fragmentation of wood and the like. Further, although the opposing rotating shafts are rotated by one hydraulic motor, a hydraulic motor may be connected to each rotating shaft to rotate the rotating shafts independently.

<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 rotating shafts rotatably attached to the casing and facing each other. a rotating means for rotating the plurality of rotating shafts at different rotation ratios; and a cutting ring fixed to the outer peripheral surface of each of the rotating shafts and having the same inclination angle at a certain rotation angle of the rotating shafts. Therefore, even if there is a change in the mutual rotation angle of the rotating shafts, the crushing can be carried out in the same state, and the crushing process can therefore be easily performed.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a perspective view of the above embodiment, Figs. FIG. 11...Casing, 12...Inlet, 14...
...Discharge port, 15, 16... Rotating shaft, 25... Cutting ring.

Claims (1)

[Claims] 1. A casing having an inlet and an outlet, at least two rotating shafts attached to the casing and rotating in opposite directions, a rotating means for rotating the plurality of rotating shafts in different rotations, and each of the above. 1. A disc crusher comprising: a cutting ring fixed to an outer peripheral surface of a rotating shaft and having the same inclination angle at a certain rotation angle of the rotating shaft.