JP2008000656A - Crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crusher capable of improving discharge efficiency and consequently improving throughput of the crusher, by preventing a crushed object from remaining on a screen. <P>SOLUTION: This crusher is provided with a casing, a rotary body rotatably set in the casing and having multiple swing hammers on the outer periphery, and a screen set in the casing and on the outer peripheral side of the rotary body, and crushes an introduced crushing object by rotation of the rotary body by the swing hammers and passes the crushed matter through the screen. The crusher is composed to make the outermost peripheral ends of the swing hammers rotate and pass in the almost whole axial region or whole region. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a crushing device for finely crushing, for example, corrugated paper, bark, wood, etc. The present invention relates to a device that can pass through, thereby improving the crushing / discharging efficiency and consequently the processing capacity.

  A conventional crushing apparatus using a swing hammer has a configuration as shown in FIG. 10, for example. FIG. 10 is a longitudinal sectional view showing the configuration of the crushing device. First, a casing 201 is provided, and a shaft 203 is rotatably installed in the casing 201. Both ends of the shaft 203 protrude and are arranged from the casing 201 and are rotatably supported by bearings 205 and 207, respectively. A plurality of disks 209 are stacked and arranged on the shaft 203 via spacers 211. A swing hammer 213 is attached to the outer periphery of the disk 209 via a long pin 214 so that a swing operation is possible.

  A screen 215 is installed inside the casing 201 and on the bottom side. Further, an object introduction hopper 217 for introducing an object to be crushed into the casing 201 is installed on the upper part of the casing 201. A pulley 219 is fixed to one end of the shaft 203, and a rotation from a drive motor (not shown) is fixed to the shaft 203 via a pulley (not shown), a belt, and the pulley 219, which are fixed to a rotation shaft of the drive motor. Will be communicated.

  According to the above configuration, the object to be crushed is introduced into the casing 201 through the object to be crushed introduction hopper 217. The shaft 203 rotates in the casing 201, so that the object to be crushed introduced into the casing 201 is crushed by the swing hammer 213. In addition, the crushed material to be crushed is passed through a screen 215 and is then sieved and falls below the casing 201. In addition, those that do not pass through the screen 215 are repeatedly crushed by the swing hammer 213.

  In addition, as what discloses the structure of the same kind of crushing apparatus, there exist patent document 1, patent document 2, patent document 3, patent document 4, etc., for example.

JP 2000-84426 A JP-A-11-300223 JP-A-10-277417 JP 09-313964 A

The conventional configuration has the following problems.
First, in the case of the conventional crushing apparatus, the trajectory of the swing hammer 213 does not exist over the entire area of the effective width of the screen 215 along the axial direction of the shaft 203, and the tip of the swing hammer 213 is not provided. There is a gap area that does not pass through. In such a gap area, the crushing / discharging action by the swing hammer 213 is not given, so that the crushed object remains without passing through the opening of the screen 215. . Such a phenomenon is particularly remarkable when the material to be crushed is like raw wood having a high water content.
When the above phenomenon occurs, the screen 215 is clogged. As a result, there has been a problem that the discharge efficiency and thus the processing capacity as a crushing device is greatly reduced.

  The present invention has been made on the basis of such points, and the object of the present invention is to provide a crushing apparatus capable of preventing the object to be crushed from remaining on the screen and improving the discharge efficiency and the processing capacity thereof. Is to provide.

In order to achieve the above object, a crushing apparatus according to claim 1 of the present invention includes a casing, a rotating body rotatably installed in the casing and provided with a plurality of swing hammers on the outer periphery, and the casing. A crushing apparatus for crushing an object to be crushed introduced by rotating the rotator with the swing hammer and passing the screen through the screen. Is composed of a shaft and a plurality of disks stacked and arranged on the outer periphery of the shaft, and a swing hammer mounting portion is provided on the outer periphery of each of the disks, and the plurality of disks are adjacent to each other. Swing hammer mounting parts of the discs are stacked and arranged in a positional relationship that does not interfere with each other. The ring hammer is protruded and arranged on one of the other disks so as to overlap with the thickness of the other disk or approximately the thickness of the other disk, and then, as a whole, a swing hammer is attached to each disk according to the same rule. It is characterized in that the outermost circumferential end of the swing hammer rotates and passes in substantially the entire area or all areas of the screen in the axial direction.
The crushing device according to claim 2 is the crushing device according to claim 1, wherein each of the disks is provided with a pair of swing hammer mounting portions at opposite positions of 180 °, and each pair of adjacent disks has a pair of swing hammer attachment portions. The pair of swing hammer attachment portions are stacked and arranged so as to be oriented in directions orthogonal to each other.
The crushing device according to claim 3 is the crushing device according to claim 1, wherein each disk is provided with a swing hammer mounting portion at one location, and each swing hammer mounting portion is provided in a pair of adjacent disks. It is characterized by being laminated and arranged so as to be arranged at an opposing position of 180 °.
According to a fourth aspect of the present invention, there is provided the crushing apparatus according to the first aspect, wherein the disk is provided with swing hammer attachment portions at three positions every 120 °, and a pair of adjacent disks has a rotation direction of 60. It is characterized by being laminated and arranged so as to deviate from each other.
The crushing device according to claim 5 is the crushing device according to any one of claims 1 to 4, wherein a tip of the swing hammer is widened by a predetermined amount along the axial direction of the rotating body. Thus, the gap between adjacent swing hammers is eliminated.
The crushing device according to claim 6 is the crushing device according to any one of claims 1 to 5, wherein the plurality of discs are bordered by a center disc disposed at an intermediate position in the axial direction of the rotating body. The left group is divided into a left group and a right group, and the left group has a swing hammer attached by a plurality of long pins inserted from the axial ends. The right group is opposite to the left group's long pins. The swing hammer is attached by a plurality of long pins inserted from the axial ends of the.
The crushing device according to claim 7 is characterized in that, in the crushing device according to claim 6, the mounting position of the swing hammer of the left group and the circumferential mounting position of the swing hammer of the right group are shifted by a predetermined angle. To do.

As described above, according to the crushing apparatus according to the present invention, the casing, the rotating body that is rotatably installed in the casing and includes a plurality of swing hammers on the outer periphery, and the rotating body in the casing. A crushing apparatus that crushes the object to be crushed introduced by rotating the rotating body with the swing hammer and passes the screen, and the rotating body includes a shaft and a screen installed on the outer peripheral side of the rotating body. And a plurality of discs stacked and arranged on the outer periphery of the shaft, and a swing hammer mounting portion is provided on the outer periphery of each of the discs, and the plurality of discs are swing hammers of adjacent discs. The mounting parts are stacked and arranged so that they do not interfere with each other. The other disk side protrudes and is arranged so as to overlap with the thickness of the disk or approximately the thickness of the disk, and the axial direction of the screen as a whole by attaching a swing hammer to each disk according to the same rules. Since the outermost peripheral edge of the swing hammer rotates and passes in substantially the entire region or the entire region, any swing hammer draws a rotation trajectory over the effective entire region or substantially the entire effective region of the screen. Therefore, the crushing / discharge of the object to be crushed can be made more reliable, and the discharge efficiency and thus the processing capacity can be greatly improved.
Each of the disks is provided with a pair of swing hammer mounting portions at 180 ° facing positions so that each pair of swing hammer mounting portions are oriented in directions orthogonal to each other. When configured to be stacked and arranged, the above-described effect can be further ensured.
Each of the disks is provided with a swing hammer mounting portion at one location, and the swing hammer mounting portions of each pair of adjacent disks are stacked and disposed so as to be disposed at opposing positions of 180 °. Even in such a configuration, the above-described effect can be further ensured.
In addition, the disk is provided with swing hammer attachment portions at three positions every 120 °, and the above effect can be ensured even when the adjacent pair of discs are stacked and arranged so as to be shifted by 60 ° in the rotational direction. Can be.
In addition, when a pair of swing hammers are attached to the opposing positions of 180 °, the hammer crushing action is performed twice when the rotating body makes one rotation. On the other hand, when one swing hammer is attached to each of the 180 ° facing positions, one hammer crushing action is performed when the rotating body makes one rotation. Therefore, if the number of rotations of the rotating body is the same, the former exhibits a higher crushing ability. Therefore, when three swing hammers are attached, the crushing ability can be further increased.
However, in the case of the present invention, the number of swing hammers is not particularly limited. For example, a configuration in which four or more swing hammers are attached to one disk is also within the scope of the present invention.
In addition, when the tip of the swing hammer is widened by a predetermined amount along the axial direction of the rotating body and is configured to eliminate a gap between adjacent swing hammers, The outermost peripheral end of the swing hammer rotates and passes in substantially the entire axial direction region, and the above-described effect becomes more reliable.
The plurality of disks are divided into two groups, a left group and a right group, with a center disk arranged at an axially intermediate position of the rotating body as a boundary, and the left group is inserted from the end in the axial direction. When the swing hammer is attached by a long pin, and the right group is configured so that the swing hammer is attached by a plurality of long pins inserted from the opposite axial end unlike the long pin of the left group. Therefore, handling such as disassembly and assembly becomes easy.
Further, in the case where the mounting position of the swing hammer of the left group and the circumferential mounting position of the swing hammer of the right group are shifted by a predetermined angle, the above effect can be further ensured.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view showing a configuration of a part of a crushing plant incorporating a crushing apparatus according to the present embodiment. First, there is a crushing apparatus 1. On the upper part of the crushing apparatus 1, an object introduction apparatus 3 for introducing an object to be crushed into the crushing apparatus is installed.

The crushing apparatus 1 is configured as shown in FIGS. First, as shown in FIG. 2, there is a casing 5, and a shaft 7 is installed in the casing 5 in a rotatable state. Both ends of the shaft 7 project and arrange the casing 1 and are supported by bearings 9 and 11 in a rotatable state. A pulley 13 is fixed to an end of the shaft 7 on the bearing 11 side.

Further, as shown in FIG. 1, a drive motor 15 is installed beside the crushing device 1, and a pulley 17 is fixed to a rotation shaft of the drive motor 15. A belt 19 is wound between the pulley 17 and the pulley 13. When the drive motor 15 is activated, the rotation is transmitted to the shaft 7 via the pulley 17, the belt 19, and the pulley 13.

As shown in FIGS. 2 and 4, a disc-shaped center disk 21 is attached to an intermediate position in the axial direction of the shaft 7. A left group 23 is formed on the left side in FIGS. 2 and 4 with the center disk 21 interposed therebetween, and a right group 25 is formed on the right side in FIGS.
The left group 23 has the following configuration. That is, as shown in FIGS. 3A and 4, first, a plurality of long disk-like disks 27 in which the vertices of the rhombus are cut out are stacked and arranged. At that time, they are stacked and arranged in such an arrangement that the directions in the longitudinal direction are alternately shifted by 90 °.

For example, when viewing the disk 27 arranged on the leftmost side in FIGS. 2 and 4, the disk 27 is installed with its longitudinal direction oriented in the horizontal direction, and both ends of the longitudinal direction on one side (FIG. 2). In the left side of FIG. 4, swing hammers 29 and 29 are attached in a state in which swing operation is possible. The swing hammers 29, 29 are attached to the disk 27 through long pins 31, 31 in a state where a swing operation is possible.

Next, when the disk 27 arranged second from the left in FIGS. 2 and 4 is viewed, the disk 27 is installed with its longitudinal direction oriented in the vertical direction. Swing hammers 29 and 29 are attached in a state in which a swing operation is possible (left side in FIGS. 2 and 4). The swing hammers 29, 29 are attached to the disk 27 through long pins 31, 31 in a state where a swing operation is possible.

Looking at the swing hammers 29, 29 attached to the second disk 27 from the left, the thickness or substantially the thickness of the disk 27 arranged on the leftmost side (in this embodiment, the thickness) Is attached in a state of projecting toward the disk 27 arranged on the leftmost side.
Hereinafter, swing hammers 29 and 29 are attached to the respective disks 27 with the same configuration.

Next, the configuration of the right group 25 will be described. As shown in FIGS. 3B and 4, the right group 25 has a configuration obtained by rotating the configuration of the left group 23 by 45 °.
Hereinafter, in detail, for example, when viewing the disk 27 arranged on the rightmost side in FIGS. 2 and 4, the longitudinal direction of the disk 27 is inclined by 45 ° with respect to the horizontal direction. Swing hammers 29 and 29 are attached to both ends in the longitudinal direction on one side (right side in FIGS. 2 and 4) in a state in which a swing operation is possible. The swing hammers 29, 29 are attached to the disk 27 through long pins 35, 35 so that a swing operation is possible.

Next, looking at the disk 27 arranged second from the right in FIGS. 2 and 4, it is installed in a state where the longitudinal direction is perpendicular to the disk 27 installed at the right end. In addition, swing hammers 29 and 29 are attached to both ends in the longitudinal direction and on one side (right side in FIGS. 2 and 4) in a swingable state. The swing hammers 29, 29 are attached to the disk 27 through long pins 35, 35 so that a swing operation is possible.

Looking at the swing hammers 29 and 29 attached to the disk 27 arranged on the rightmost side, the swing hammers 29 and 29 are attached so as to protrude rightward in the figure with a width corresponding to the thickness of the disk 27. Further, when looking at the swing hammers 29 and 29 attached to the second disk 27 from the right, the thickness or substantially the thickness of the disk 27 arranged on the rightmost side (in this embodiment, the thickness ) In a state of projecting toward the disk 27 arranged on the rightmost side.
Hereinafter, swing hammers 29 and 29 are attached to the respective disks 27 with the same configuration.

Further, as shown in FIG. 2, the long pin 31 of the left group 23 is inserted from the left side and screwed into the center disk 21, whereas the long pin 35 of the right group 25 is inserted from the right side. Thus, it is screwed to the center disk 21.
Further, as shown in FIG. 2, side disks 43 and 45 are provided on the left and right ends of the plurality of stacked disks 27, that is, on the left side of the left group 23 and the right side of the right group 25, respectively. is set up. That is, in FIG. 2, the plurality of disks 27 in the left group 23 are stacked and arranged with the side disks 43 and the center disk 21 being sandwiched, and the plurality of disks 27 in the right group 25 are stacked in the side disks 45. And the center disk 21 are stacked and arranged.

Further, as shown in FIG. 2, a screen 41 is installed inside the casing 5. The object to be crushed by the plurality of swing hammers 29 is configured to fall downward through the screen 41.
In this embodiment, the effective area along the axial direction of the screen 41 refers to the area from the inside of the side disk 43 already described to the inside of the center disk 21 and from the inside of the center disk 21 to the opposite side. The area extends to the inside of the side disk 45.

According to the above configuration, the object to be crushed is introduced into the casing 5. The shaft 7 is rotating in the casing 5, and thus the object to be crushed introduced into the casing 5 is crushed by the swing hammer 29. Further, the crushed material to be crushed is sieved through the screen 41 and falls below the casing 5. Further, those that do not pass through the screen 41 are repeatedly crushed by the swing hammer 29.

As described above, according to the present embodiment, the following effects can be obtained.
First, looking at the mounting structure of a swing hammer 29 attached to a plurality of stacked disks 27, the swing hammer 29 attached to one of the adjacent disks 27, 27 is the other disk. 27 is projected and arranged on the 27 side, and is configured to draw a rotational trajectory in an area corresponding to the thickness of the disk 27. Therefore, any of the swing hammers 29 draws a rotation trajectory over the entire effective area of the screen 41 along the axial direction of the shaft 7. Therefore, crushing / discharge of the object to be crushed can be made more reliable, and the discharge efficiency and thus the processing capacity can be greatly improved. And it functions effectively also in the case of the kind of to-be-crushed object which became a problem conventionally, for example, the case of raw wood with high moisture content.
In the case of the present embodiment, a plurality of disks 27 are divided into left and right groups 23 with the center disk 21 interposed therebetween to form a left group 23 and a right group 25, and they are displaced in the rotational direction by a predetermined angle. Therefore, the long pins 31 and 35 used in the respective groups 23 and 25 can be attached in a state where they can be pulled out from the outside. As a result, handling of the crushing unit composed of a plurality of disks 27 is facilitated, and this can be easily performed, for example, when the worn swing hammer 29 is replaced.

Next, a second embodiment of the present invention will be described with reference to FIGS. In the case of this embodiment, the shape of the disk is changed and one swing hammer is attached to each disk as compared with the case of the first embodiment. Details will be described below.
First, a plurality of disks 57 are stacked and arranged in the left group 23. As shown in FIG. 6, the disk 57 has a substantially rectangular shape, and one end in the longitudinal direction is formed in an arc shape.

When the adjacent disks 57 and 57 are viewed, they are stacked with their positions shifted by a predetermined amount in the longitudinal direction. Then, a swing hammer 59 is attached to one end of the shifted longitudinal direction so that the swing operation is possible. The swing hammer 59 is attached to the disk 57 via a long pin 61.

Further, when viewing the leftmost disk 57 in FIG. 6, a swing hammer 59 is attached to one side (left side in FIG. 6) of one end in the longitudinal direction so that the swing operation is possible. . The swing hammer 59 is attached to the disk 57 through a long pin 61 so that a swing operation is possible.
Also, when looking at the swing hammer 59 attached to the second disk 57 from the left, the thickness of the disk 57 arranged on the leftmost side or the approximate thickness (in this embodiment, the thickness ) In a state of projecting toward the disk 57 disposed on the leftmost side.
Hereinafter, a swing hammer 59 is attached to each disk 57 with the same configuration.

Next, the configuration of the right group 25 will be described. As shown in FIG. 6, the right group 25 has a configuration obtained by rotating the configuration of the left group 23 by 90 °. First, a plurality of disks 57 are stacked and arranged in the right group 25. As shown in FIG. 6, the disk 57 has a substantially rectangular shape, and one end in the longitudinal direction is formed in an arc shape.

When the adjacent disks 57 and 57 are viewed, they are stacked with their positions shifted by a predetermined amount in the longitudinal direction. Then, a swing hammer 59 is attached to one end of the shifted longitudinal direction so that the swing operation is possible. The swing hammer 59 is attached to the disk 57 via a long pin 63.

Looking at the swing hammer 59 attached to the disk 57 arranged on the rightmost side, the width corresponds to the thickness or substantially the thickness of the disk 57 (in this embodiment, the thickness). It is attached in a state of protruding to the right side in the figure. Further, when looking at the swing hammer 59 attached to the second disk 57 from the right, the thickness of the disk 57 arranged on the rightmost side is substantially equal to the thickness (in this embodiment, the thickness). It is attached in a state of protruding to the side of the disk 57 arranged on the rightmost side with a corresponding width.
Hereinafter, a swing hammer 59 is attached to each disk 57 with the same configuration.

Further, as shown in FIG. 5, the long pins 61 of the left group 23 are inserted from the left side and screwed into the center disk 21, whereas the long pins 63 of the right group 25 are inserted from the right side. Thus, it is screwed to the center disk 21.

Other configurations are the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and description thereof is omitted.
Also in the case of the second embodiment, the same effect as in the case of the first embodiment can be obtained.

Next, a third embodiment of the present invention will be described with reference to FIGS. In the case of the first embodiment, the case where one swing hammer is attached to one disk is shown as an example, and in the case of the second embodiment, one swing is attached to one disk. Although the case where the hammer is attached is shown as an example, in the case of the third embodiment, the case where three swing hammers are attached to one disk is shown as an example.

First, a plurality of disks 107 are stacked and arranged in the left group 23. As shown in FIGS. 7B and 8, the disk 107 has an equilateral triangle, and each of the three vertices is formed in an arc shape.

When the adjacent disks 107 and 107 are viewed, they are stacked with their positions shifted by 60 ° in the circumferential direction. A swing hammer 109 is attached to each of the three vertex positions of each disk 107 so that the swing operation is possible. The swing hammer 109 is attached to the disk 107 via a long pin 111.

Further, in FIG. 8, when viewing the disk 107 arranged on the leftmost side, a swing hammer 109 is attached to the left side surface in the figure at each of the three vertex positions. The thickness of the swing hammer 109 corresponds to the thickness or substantially the thickness of the disk 107 (in this embodiment, the thickness). Next, looking at the disk 107 arranged second from the left side, a swing hammer 109 is attached to the side face of the leftmost disk 107 side at each of the three vertex positions. The thickness of the swing hammer 109 corresponds to the thickness or substantially the thickness of the disk 107 (in this embodiment, the thickness).
Hereinafter, a swing hammer 109 is attached to each disk 107 with the same configuration.

Next, the configuration of the right group 25 will be described. As shown in FIG. 8, the right group 25 has a configuration obtained by rotating the configuration of the left group 23 by 30 °. First, a plurality of disks 107 are stacked and arranged in the right group 25. As shown in FIGS. 7B and 8, the disk 107 has an equilateral triangle, and each of the three vertices is formed in an arc shape.

When the adjacent disks 107 and 107 are viewed, they are stacked with their positions shifted by 60 ° in the circumferential direction. A swing hammer 109 is attached to each of the three vertex positions of each disk 107 so that the swing operation is possible. The swing hammer 109 is attached to the disk 107 via a long pin 113.

In FIG. 8, when viewing the disk 107 arranged on the rightmost side, a swing hammer 109 is attached to the right side surface at each of the three vertex positions. The thickness of the swing hammer 109 corresponds to the thickness of the disk 107. Next, when looking at the disk 107 arranged second from the right side, a swing hammer 109 is attached to the side face on the rightmost disk 107 side at each of the three vertex positions. The thickness of the swing hammer 109 corresponds to the thickness of the disk 107.
Hereinafter, a swing hammer 109 is attached to each disk 107 with the same configuration.

The long pins 111 of the left group 23 are inserted from the left side and screwed to the center disk 21, whereas the long pins 113 of the right group 25 are inserted from the right side and screwed to the center disk 21. It is to be combined.

Other configurations are the same as those of the first and second embodiments, and the same parts are denoted by the same reference numerals and description thereof is omitted.
And also in the case of this 3rd Embodiment, there can exist an effect similar to the case of the said 1st Embodiment and 2nd Embodiment.
Further, compared with the first embodiment in which a pair of swing hammers are attached to each disk and the second embodiment in which one swing hammer is attached to each disk, the rotational speed of the rotating body is the same. If there is, since three swing hammers are attached, a higher crushing capacity can be obtained.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, the width (L) of the tip 157a of the swing hammer 157 is widened by a predetermined amount along the axial direction of the shaft 7. As a result, the gap of the track between the adjacent swing hammers 157 is completely filled, and the track of the swing hammer 157 can be drawn over the entire effective area of the screen 41.
As a result, the effects of the first and second embodiments can be further enhanced.

The present invention is not limited to the first to fourth embodiments.
First, in the case of the first embodiment, the number of swing hammers attached to each disk is 2, and in the case of the second embodiment, the number is 1. However, in the third embodiment, In some cases, the number is three, but the number is not limited thereto, and a case of four or more is also conceivable.
Further, the shape of the disk, the shape of the swing hammer, etc. are not limited to those shown in the figure.
In the case of the first, second, and third embodiments, the left group and the right group are configured by dividing the center disk into two parts on the left and right sides, but the present invention is not limited thereto. Various configurations such as a configuration that does not divide into groups and a configuration that divides into three or more groups are assumed.

The present invention relates to a crushing apparatus using a swing hammer, which is devised so that a swing hammer can pass through the entire effective area in the axial direction of the screen or substantially the entire effective area, for example, raw bark having a high water content.・ Suitable for crushing equipment that crushes wood and the like finely.

It is a figure which shows the 1st Embodiment of this invention, and is a side view which shows the structure of the whole crushing apparatus. It is a figure which shows the 1st Embodiment of this invention, and is II-II sectional drawing of FIG. FIG. 3A is a cross-sectional view taken along the line aa in FIG. 2 and FIG. 3B is a cross-sectional view taken along the line bb in FIG. It is a figure which shows the 1st Embodiment of this invention and is a perspective view which shows the structure of the principal part of a crushing apparatus. It is a figure which shows the 2nd Embodiment of this invention, and is a longitudinal cross-sectional view which shows the structure of a crushing apparatus. It is a figure which shows the 2nd Embodiment of this invention, and is a perspective view which shows the structure of the principal part of a crushing apparatus. It is a figure which shows the 3rd Embodiment of this invention, Fig.7 (a) is a side view which shows a part of structure of a crushing apparatus, FIG.7 (b) is a bb arrow line view of Fig.7 (a). It is. It is a figure which shows the 3rd Embodiment of this invention, and is a perspective view which shows the structure of the principal part of a crushing apparatus. It is a figure which shows the 4th Embodiment of this invention, and is a perspective view which shows the structure of a swing hammer. It is a figure which shows a prior art example, and is a longitudinal cross-sectional view which shows the structure of the crushing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Crushing device 5 Casing 7 Shaft 9 Bearing 11 Bearing 13 Pulley 15 Drive motor 17 Pulley 19 Belt 21 Center disk 23 Left group 25 Right group 27 Disk 29 Swing hammer 31 Long pin 33 Long pin 35 Long pin 37 Long pin 57 Disk 59 Swing hammer 61 Long pin 63 Long pin 77 Swing hammer 79a Tip

Claims (7)

A casing, a rotating body rotatably installed in the casing and provided with a plurality of swing hammers on the outer periphery, and a screen installed in the casing on the outer periphery side of the rotating body, In the crushing apparatus that crushes the object to be crushed introduced by rotating the rotating body with the swing hammer and passes the screen,
The rotating body is composed of a shaft and a plurality of disks stacked and arranged on the outer periphery of the shaft,
A swing hammer mounting portion is provided on the outer peripheral portion of each disk,
The plurality of disks are stacked and arranged in a positional relationship such that the swing hammer mounting portions of adjacent disks do not interfere with each other.
The swing hammer of one of the adjacent disks protrudes and is arranged on either the other disk side so as to overlap with the thickness or substantially the thickness of the other disk,
Hereinafter, the swing hammer is attached to each disk in accordance with the same rule, and the outermost peripheral end of the swing hammer is configured to rotate and pass in substantially the entire area in the axial direction of the screen or the entire area as a whole. Crushing device to do. The crushing device according to claim 1,
Each disk is provided with a pair of swing hammer mounting portions at 180 ° facing positions,
A crushing apparatus, wherein a pair of swing hammer attachment portions are stacked and arranged so as to be oriented in directions orthogonal to each other in a pair of adjacent disks. The crushing device according to claim 1,
Each disk is provided with a swing hammer attachment in one place,
A crushing apparatus, wherein a pair of adjacent discs are stacked and arranged so that each swing hammer attaching portion is arranged at an opposing position of 180 °. The crushing device according to claim 1,
The disk is provided with swing hammer attachments at three positions every 120 °,
A crushing apparatus, wherein a pair of adjacent disks are stacked and arranged so as to be shifted by 60 ° in the rotation direction. In the crushing apparatus in any one of Claims 1-4,
A crushing apparatus characterized in that the tip of the swing hammer is widened by a predetermined amount along the axial direction of the rotating body so as to eliminate a gap between adjacent swing hammers. In the crushing apparatus in any one of Claims 1-5,
The plurality of disks are divided into two groups, a left group and a right group, with a center disk arranged at an intermediate position in the axial direction of the rotating body as a boundary.
The left group has a swing hammer attached by a plurality of long pins inserted from the axial end.
The crushing apparatus according to claim 1, wherein the right group has a swing hammer attached thereto by a plurality of long pins inserted from opposite axial ends unlike the long pins of the left group. The crushing device according to claim 6,
The crushing apparatus according to claim 1, wherein a mounting position of the swing hammer of the left group and a circumferential mounting position of the swing hammer of the right group are shifted by a predetermined angle.

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