JP4164811B2 - Uniaxial shear crusher - Google Patents

Description

  The present invention relates to a uniaxial shearing type crusher for crushing, for example, municipal waste, industrial waste and the like.

Conventionally, as this type of single-shaft shearing crusher, a crushing chamber is formed in the crushing machine body, a rotating shaft is provided horizontally in the crushing chamber, a rotating body is disposed on the rotating shaft, and a rotary blade is provided on the outer peripheral portion of the rotating body. The fixed blade that shears and crushes the object to be crushed in cooperation with the rotary blade is arranged in the crushing machine body, and the surface that is the rake face of the fixed blade is shifted from the rotation axis of the rotary shaft. The rake face of the rotary blade and the rake face of the fixed blade are arranged at a certain shear angle at the start of shearing, and the blade portion of the rotary blade is substantially V-shaped and adjacent to two linear ridge lines. Therefore, the blade portion of the fixed blade is known to have a structure composed of two ridge lines adjacent to each other in a substantially V shape facing the two adjacent linear ridge lines as the blade portion of the rotary blade.
Japanese Patent No. 3122725

However, in the case of these conventional structures, as shown in FIG. 16, the flank A ₂ of the fixed blade A facing the rotation locus surface F of the ridge line B ₁ of the rotary blade B including the ridge line A ₁ of the fixed blade A is fixed blade A. The surface is perpendicular to the rake face A ₃ as the surface of the blade, and for this reason, the ridge line A ₁ of the fixed blade A and the ridge line B ₁ of the rotary blade B are intermittently sheared and crushed. Depending on the specifications of the object to be crushed, the angle formed between the ridge line A ₁ of the fixed blade A and the flank A ₂ is 90 degrees, and the corner portion M may be easily lost in a short time due to wear. .

The present invention aims to solve these disadvantages. Among the present inventions, the invention according to claim 1 forms a crushing chamber in the crusher body, and a rotating shaft is installed horizontally in the crushing chamber. A rotating body is disposed on the rotating shaft, a rotating blade is disposed on the outer peripheral portion of the rotating body, and a fixed blade for shearing and crushing the material to be crushed in cooperation with the rotating blade is disposed on the crushing machine body. A rake face of the fixed blade is displaced with respect to the rotation axis of the rotary shaft, and the rake face of the rotary blade and the rake face of the fixed blade are at a certain shear angle at the start of shearing. The blade portion of the rotary blade is formed of two linear ridge lines adjacent in a substantially V shape, and the blade portion of the fixed blade is the two adjacent blade portions of the rotary blade. The ridge of the rotary blade comprising two ridge lines adjacent to each other in a substantially V shape facing the straight ridge line and including the ridge line of the fixed blade Second flank of the fixed blade facing the rotation trajectory surface formed on the proximate surface proximate as possible to the rotation trajectory plane, the blade portions of the fixed blade is adjacent above the blade portion of the rotating blade It consists of two concave curved ridge lines adjacent to each other in a substantially V shape that conforms to the locus on the rake face of the fixed blade, and the blade portions of the fixed blade are formed on the front and back surfaces of the fixed blade The flank of the fixed blade has a flank when using the front blade and a flank when using the reverse blade after reversing. .

The invention according to claim 2 is characterized in that each flank is formed on a flat surface close to the rotation locus surface of the blade portion , and the invention according to claim 3 Each flank is formed in an arcuate surface close to the rotation locus surface of the blade portion .

  According to a fourth aspect of the present invention, the rotary blade is formed in a prismatic shape having a square cross section, and two adjacent ridgelines that form a substantially V shape among the four ridgelines on the surface of the rotary blade and the remaining ridgelines. Two ridge lines adjacent to each other in a substantially V shape are used as blade portions, and the invention according to claim 5 is characterized in that the rotary blade is formed in a square column shape having a square cross section. Of the total of eight ridge lines on each of the front and back surfaces of the rotary blade, two ridge lines adjacent to each other in a substantially V shape on the surface, and the remaining two ridge lines adjacent to each other in a substantially V shape, and the back surface Two ridge lines adjacent in a V shape and the remaining two ridge lines adjacent in a substantially V shape are used as blade portions, respectively.

  According to a sixth aspect of the present invention, a plurality of the rotary blades are arranged with a certain phase difference in the axial direction of the rotary shaft, the fixed blades are formed in a long plate shape, and the plurality of the fixed blades are arranged on the fixed blades. A plurality of blade portions made of two adjacent ridge lines are formed in a saw blade shape so as to be opposed to a plurality of blade portions made of two ridge lines adjacent to each other with a substantially V shape of each rotary blade. The invention according to claim 7 is characterized in that the rake face of the fixed blade is inclined downwardly toward the rotation axis with respect to the horizontal axis. It is what.

As described above, according to the present invention, the material to be crushed is supplied to the crushing chamber in the crusher body, and the crushing chamber is crushed in cooperation with the fixed blade by the rotation of the rotary blade in the crushing chamber. The object is sheared and crushed, and the surface which is the rake face of the fixed blade is shifted from the rotation axis of the rotary shaft so that the rake face of the rotary blade and the rake face of the fixed blade have a certain shear angle at the start of shearing. Since it is arranged in such a way, it is possible to perform linear crushing in which a blade portion composed of two ridge lines adjacent to each other in a substantially V shape and a blade portion composed of two ridge lines adjacent to each other in a substantially V shape are adjacent to each other. In this case, the flank of the fixed blade facing the rotation trajectory surface of the ridge line as the blade portion of the rotary blade including the ridge line as the blade portion of the fixed blade. Is formed on a close surface as close as possible to the rotation trajectory surface The angle formed by the ridge line and the flank as the blade portion of the fixed blade becomes an obtuse angle of 90 degrees or more, the wear resistance of the corner portion can be improved, short-term defects can be suppressed, and, for example, Even if the corner portion including the rake face is broken, the fixed blade flank is formed on a proximity surface as close as possible to the rotation trajectory surface. It will act as a new blade part, the shearing crushing of the material to be crushed can be continued well, the shear crushing efficiency can be improved , and the blade part of the rotary blade has a substantially V shape. Composed of two adjacent linear ridgelines, the blade portion of the fixed blade has a substantially V shape that matches the locus on the rake face of the fixed blade of the two adjacent linear ridgelines as the blade portion of the rotary blade. It is formed by a part of two adjacent concave curved ridge lines. Therefore, on the rake face of the fixed blade that is sheared and crushed, the blade portion formed by the linear ridge line of the rotary blade can maintain a certain clearance with respect to the blade portion of the fixed blade, A uniform and uniform clearance can be formed at the middle part and the blade edge, so that, for example, a lap film or a film sheet-like object to be crushed can be satisfactorily sheared, and the shear crushing efficiency is improved accordingly The blade portion of the fixed blade is formed on the front and back surfaces of the fixed blade, and the flank surface of the fixed blade is a flank surface when the front blade portion is used and a reverse blade portion when the reverse blade portion is used. Since the flank is formed, when the blade is worn, the ridge line on the back surface can be used as the blade by turning the fixed blade upside down, and the cost can be improved accordingly.

In the invention described in claim 2, each flank is formed on a flat surface close to the rotation locus surface of the blade, and the fixed blade is turned upside down to use the front and back blades. In the invention according to claim 3, since each flank is formed in an arcuate surface close to the rotation locus surface of the blade portion, the fixed blade is turned upside down. The blade on the back can be used.

  According to a fourth aspect of the present invention, the rotary blade is formed in a square column shape having a square cross section, and two adjacent ridgelines are formed in a substantially V shape among the four ridgelines on the surface of the rotary blade. Since the blade is used, the rotary blade can be easily manufactured, and when the blade is worn, by rotating the rotary blade by 180 degrees, other ridge lines can be used as the blade, which is economical. In the invention according to claim 5, the rotary blade is formed in a square column shape having a square cross section, and each of the four front and back surfaces of the rotary blade has a total of eight ridge lines. Two ridge lines adjacent to each other in a substantially V shape on the front surface and the remaining two ridge lines adjacent to each other in a substantially V shape, and two ridge lines adjacent to each other in a substantially V shape on the back surface and the remaining substantially V shape. Since the two adjacent ridgelines are the blades, they rotate. In addition, when the blade is worn, it is possible to use a total of eight ridge lines as the blade by rotating the rotary blade 180 degrees and turning it upside down. Can be increased.

  According to a sixth aspect of the present invention, a plurality of the rotary blades are arranged with a certain phase difference in the axial direction of the rotary shaft, the fixed blades are formed in a long plate shape, A plurality of blades made of two adjacent ridge lines in a substantially V shape facing a plurality of blade parts made of two adjacent ridge lines in a substantially V shape of a plurality of rotary blades in a saw blade shape. Since it is formed, shear crushing is performed by a plurality of rotary blades and a plurality of fixed blades, and the crushing efficiency of the object to be crushed can be increased. In the invention according to claim 7, the fixed Since the rake face of the blade is inclined downward toward the rotation axis with respect to the horizontal axis, it is possible to obtain the action of moving the object to be crushed toward the rotating blade by its own weight. Can be reliably carried out.

1 to 14 show an embodiment of the present invention, FIGS. 1 to 11 show a first embodiment, FIG. 12 shows a second embodiment, FIG. 13 shows a third embodiment, and FIG. 14 shows a fourth embodiment. It is a form example .

  In the first embodiment shown in FIGS. 1 to 11, reference numeral 1 denotes a crushing machine body, in which a crushing chamber 2 is formed, and the staying portion 3 of the object to be crushed W is pushed obliquely downward into the upper side position of the crushing chamber 2. A possible pushing mechanism (not shown) is provided, a rotating shaft 4 is provided horizontally in the crushing chamber 2, and a rotating mechanism (not shown) for rotating the rotating shaft 4 is provided. The body 5 is arranged, and a plurality of rotary blades 6 are arranged on the outer peripheral portion of the rotary body 5 in a spiral shape with a certain phase difference, and the shredder body W cooperates with the rotary blade 6 in the crushing machine body 1. A fixed blade 7 for shearing and crushing is disposed, and a screen plate 8 having a discharge hole 8 a is disposed below the rotary blade 6.

  In this case, as shown in FIGS. 2, 3, 5, and 7, the rotary blade 6 is formed in a square column shape having a square cross section, and is adjacent to each other by forming a substantially V shape among the four ridge lines on the surface. Two ridge lines and the remaining two ridge lines adjacent to each other in a substantially V shape form the blade portion 6a, respectively, and the two ridge lines adjacent to each other in the substantially V shape among the four ridge lines on the back surface and the rest The two ridge lines adjacent to each other in a substantially V shape are formed as blade portions 6a, respectively, and the angle formed by the two adjacent ridge lines of the four blade portions 6a on the front surface and the four blade portions 6a on the back surface φ is 90 degrees (φ = 90 degrees), and a plurality of arc-shaped grooves 5a are formed in parallel on the outer peripheral surface of the rotating body 5, and a fitting concave groove 5b is fixed at the center position of each arc-shaped groove 5a. An arrangement is formed in a spiral shape with a phase difference, and a mounting block 9 is attached to the fitting concave groove 5b with a bolt 10, A 90-degree V-shaped receiving surface 9 a is formed on the mounting block 9, both side surfaces adjacent to the rotary blade 6 are placed and fitted on the V-shaped receiving surface 9 a, and the rotary blade 6 is attached to the mounting block 9 by the fastening bolt 11. The rotary blade 6 is rotated 180 degrees with respect to the mounting block 9 attached to the rotating body 5 so that the rotary blade 6 can be used as the blade portion 6a. By attaching to the attachment block 9, a total of eight ridge lines of the four blade portions 6a on the front surface and the four blade portions 6a on the back surface can be used as the blade portions.

  Further, the fixed blade 7 is formed in a long plate shape, and is adjacent to the blade portion 6a formed by the two ridge lines adjacent to each other in the substantially V shape of the plurality of rotary blades 6. The blade portion 7a is composed of two ridge lines, and the blade portion 7a is formed on the front and back surfaces of the fixed blade 7. In this case, as shown in FIGS. 2, 4, 5, and 8, the blade portion 6a of the rotary blade 6 is formed. Since the angle between the two ridges is a straight line with φ = 90 degrees, the trajectory P of the blade portion 6a of the rotary blade 6 on the rake face 7b which is the surface of the fixed blade 7 is obtained by analysis. The trajectory P is changed to an angle β which is smaller than the angle φ (β <φ), and in this case, φ = 90 degrees, so it is smaller than 90 degrees (β = about 80 degrees <90), and the trajectory P is a concave curve. Therefore, adjacent ridgelines that can be maintained with a certain clearance C in conformity with the locus P are concavely curved. As shown in FIG. 9, on the rake face 7b of the fixed blade 7, the blade portion 6a formed by the linear ridge line of the rotary blade 6 is constant with respect to the blade portion 7a of the fixed blade 7. A plurality of blade portions 7a corresponding to the number of the plurality of rotary blades 6 are formed to form a saw blade shape as a whole, and the mounting seat 12 on the side of the crusher body 1 is formed. The mounting recess 12a is formed in the mounting seat 12, the fixed blade 7 is mounted in the mounting recess 12a, the adjusting bolt 13 is screwed to the mounting seat 12, and the fixing nut 14 is attached to the adjusting bolt 13. Screwed to form a long hole 7d in the fixed blade 7, the position of the fixed blade 7 is adjusted by advancing and retreating the adjusting bolt, and the mounting bolt 15 is detachably mounted and fixed to the mounting seat 12 and the fixed blade 7 is turned upside down. And can be used.

  Further, in this case, the rake face 7b as the surface of the fixed blade 7 is inclined with respect to the horizontal axis L toward the rotating shaft 4 by an angle α and is raked as the surface of the fixed blade 7. The surface 7b is arranged with a distance E from the rotational axis O of the rotary shaft 4 so that the rake surface 6b which is the front surface of the rotary blade 6 in the rotational direction and the rake surface 7b which is the surface of the fixed blade 7 are arranged. Are arranged and configured to form a certain shear angle θ at the start of shearing.

  Furthermore, in this case, the flank 7c of the fixed blade 7 facing the rotation locus surface F of the blade portion 6a as the ridgeline of the rotary blade 6 including the blade portion 7a as the ridgeline of the fixed blade 7 is the rotation locus surface F. It is formed on a close surface as close as possible.

  In this case, the flank 7c is such that the fixed blade 7 is turned upside down so that the front and back blades 7a and 7a are used. Therefore, the flank 7c and the reverse side after the reverse when the front blade 7a is used. When the blade portion 7a is used, a clearance surface 7c is formed, and is formed on a flat surface close to the rotation locus surface F of the blade portion 6a.

  Since the first embodiment of the present embodiment has the above-described configuration, as shown in FIG. 1, a film, a runner, a plastic wrap, etc. are artificially or automatically passed to a crushing chamber 2 in a crushing machine body 1 via a hopper not shown. The waste to be crushed W such as municipal waste and industrial waste is put in, and the crushed material W in the staying portion 3 is pushed toward the rotating shaft 4 by a pushing mechanism including a cylinder mechanism (not shown) and the like in the crushing chamber 2. , The rotating shaft 4 is rotated by a rotating mechanism including a motor (not shown), the roll-shaped rotating body 5 is rotated, and the rotating blade 6 is rotated clockwise in the direction of the arrow by the rotation of the rotating body 5, The surface which is the rake face 7b of the fixed blade 7 is shifted by E by the rotation axis O of the rotary shaft 4, and when the rake face 6a of the rotary blade 6 and the rake face 7b of the fixed blade 7 start shearing or Is arranged at a shear angle θ More than the large crushing resistance associated with linear crushing formed by the blade portion 6a composed of two ridge lines adjacent to each other in a substantially V shape and the blade portion 7a formed from two ridge lines adjacent to each other in a substantially V shape. The crushing object W is sheared and crushed in cooperation with the fixed blade attached to the crushing machine body 1 by the rotation of the rotary blade 6, and the crushed object W is the screen plate 8. The material to be crushed W that has fallen through the discharge hole 8a and is larger than the discharge hole 8a is turned upward again and then sheared and crushed again. In this way, the material to be crushed W is sheared and crushed. ,

  At this time, as shown in FIGS. 2, 10, and 11, the fixed blade 7 facing the rotation locus surface F of the ridge line as the blade portion 6 a of the rotary blade 6 including the ridge line as the blade portion 7 a of the fixed blade 7. Since the flank 7c is formed as a proximity surface as close as possible to the rotation locus surface F, the angle formed between the ridge line as the blade portion 7a of the fixed blade 7 and the flank 7c becomes an obtuse angle of 90 degrees or more. Thus, the wear resistance of the corner portion M can be increased, short-term defects can be suppressed, and even if the corner portion M including the rake face 7b is defective, for example, Since the flank 7c is formed on a close surface as close as possible to the rotation locus surface F, the remaining corner portion M after the defect acts as a new blade portion 7a, and accordingly, the object to be crushed. Can continue the shear crushing well and improve the shear crushing efficiency. That.

  Further, in this case, the blade portion 6a of the rotary blade 6 is formed of two linear ridge lines adjacent to each other in a substantially V shape, and the blade portion 7a of the fixed blade 7 is adjacent to the blade portion 6a of the rotary blade 6. Since the two linear ridges that match each other are formed by a part of two ridge lines that are adjacent to each other in a substantially V shape that conforms to the locus P on the rake face 7a of the fixed blade 7, the shear fracture On the rake face 7b of the fixed blade 7 where the blade is formed, the blade portion 6a formed of a linear ridge line of the rotary blade 6 can maintain a certain clearance C with respect to the blade portion 7a of the fixed blade 7, and the cutting edge Therefore, a uniform and uniform clearance can be formed at the middle portion and the blade edge, and therefore, for example, a wrap film or a film sheet-like object to be crushed can be favorably sheared, and the shear crushing efficiency can be increased accordingly. Can be improved, and In this case, since the blade portion 7a of the fixed blade 7 is formed on the front and back surfaces of the fixed blade 7, when the blade portion 7a is worn, the fixed blade 7 is reversed so that the ridge line on the back surface is used as the blade portion. 7a can be used, and the economy can be improved accordingly.

  Further, in this case, the rotary blade 6 is formed in a square column shape having a square cross section, and two adjacent ridge lines of the four ridge lines on the surface of the rotary blade 6 are used as the blade portion 6a. The rotary blade 6 can be easily manufactured, and when the blade portion 6a is worn, by rotating the rotary blade 6 180 degrees, the other ridgeline can be used as the blade portion 6a, which is economical. Further, in this case, the rotary blade 6 is formed in a square column shape having a square cross section, and approximately four V-shaped surfaces on the front and back surfaces of the rotary blade 6 out of a total of eight ridge lines. Two adjacent ridgelines and the remaining two ridgelines that form a substantially V shape, and two adjacent ridgelines that form a substantially V shape on the back surface and the remaining two ridgelines that form a substantially V shape and the remaining two ridgelines Are the blade parts 6a. When the blade portion 6a can be easily worn, by rotating the rotary blade 6 180 degrees and reversing the front and back, a total of eight ridge lines can be used as the blade portion 6a. Can be increased.

  Further, in this case, a plurality of the rotary blades 6 are arranged with a constant phase difference in the axial direction of the rotary shaft 4, and the fixed blade 7 is formed in a long plate shape. A plurality of blade portions 7b formed of two adjacent ridge lines in a substantially V shape opposite to a plurality of blade portions 6a formed of two adjacent ridge lines forming a substantially V shape of the blade 6 are formed in a saw blade shape. Therefore, the plurality of rotary blades 6 and the plurality of fixed blades 7 are subjected to shear crushing, and the crushing efficiency of the object to be crushed W can be increased. In this case, the rake face 7b of the fixed blade 7 is used. Is inclined forwardly downward by an angle α toward the rotation axis 4 with respect to the horizontal axis L, so that it is possible to obtain the action of moving the object W to be crushed toward the rotary blade 6 by its own weight, Accordingly, the material to be crushed W can be reliably fed.

  The second embodiment shown in FIG. 12 shows another example of the structure of the fixed blade 7. In this case, the flank 7 c is reversed so that the fixed blade 7 is turned upside down and the front and back blade portions 7 a and 7 a are used. The flank 7c close to the rotation locus surface F of the blade portion 6a when the front-side blade portion 7a is used and the rotation locus surface F of the blade portion 6a when the reverse-side blade portion 7a is used after reversal. A clearance surface 7c is formed, and a flat top surface is formed at the boundary between the two clearance surfaces 7c and 7c in view of the arrangement of the rotation axis O of the rotary blade 6.

  The third embodiment shown in FIG. 13 also shows another example of the structure of the fixed blade 7. In this case, the flank 7c is reversed so that the fixed blade 7 is turned upside down and the front and back blade portions 7a and 7a are used. The flank 7c close to the rotation locus surface F of the blade portion 6a when the front-side blade portion 7a is used and the rotation locus surface F of the blade portion 6a when the reverse-side blade portion 7a is used after reversal. The flank 7c is formed, and is formed in an arcuate surface close to the rotation locus surface F of the blade 6a in production.

  The fourth embodiment shown in FIG. 14 also shows another example of the structure of the fixed blade 7. In this case, the flank 7c reverses the front and back of the fixed blade 7 and uses the front and back blade portions 7a and 7a. The flank 7c close to the rotation locus surface F of the blade portion 6a when the front-side blade portion 7a is used and the rotation locus surface F of the blade portion 6a when the reverse-side blade portion 7a is used after reversal. The flank 7c is formed, and is formed in an arcuate surface close to the rotation locus surface F of the blade portion 6a. Further, two flank surfaces 7c and 7c are disposed due to the arrangement of the rotation axis O of the rotary blade 6. A flat top surface is formed at the boundary portion.

  Even in each of these embodiments, the same effect as the first embodiment can be obtained.

  The present invention is not limited to the above-described embodiment. For example, the shapes, structures, materials, etc. of the crushing machine body 1, the rotary blade 6, the fixed blade 7 and the flank 7c are appropriately designed and changed. is there.

  As described above, the intended purpose can be sufficiently achieved.

1 is a side sectional view of a first embodiment of the present invention. It is an expanded side sectional view of the first embodiment of the present invention. It is a fragmentary perspective view of the first embodiment of the present invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. 1 is a partially exploded perspective view of a first embodiment of the present invention. It is a partial front view of the first embodiment of the present invention. It is a partial front view of the first embodiment of the present invention. It is a description top view of the example of 1st Embodiment of this invention. It is a description top view of the example of 1st Embodiment of this invention. It is sectional drawing of the fixed blade of the example of 1st Embodiment of this invention. It is a partial enlarged plan view of the fixed blade of the first embodiment of the present invention. It is sectional drawing of the fixed blade of the 2nd embodiment of this invention. It is sectional drawing of the fixed blade of the example of 3rd embodiment of this invention. It is sectional drawing of the fixed blade of the example of 4th form of implementation of this invention. It is an expanded sectional side view of a conventional structure.

Explanation of symbols

W object to be crushed θ shear angle P locus F rotation locus surface M corner portion L horizontal axis 1 crushing machine body 2 crushing chamber 4 rotation shaft 5 rotating body 6 rotating blade 6a blade portion 6b rake face 7 fixed blade 7a blade portion 7b rake face 7c Flank

Claims (7)

A crushing chamber is formed in the crushing machine body, a rotating shaft is provided horizontally in the crushing chamber, a rotating body is arranged on the rotating shaft, a rotary blade is arranged on the outer peripheral portion of the rotating body, and the crushing machine body A fixed blade for shearing and crushing the object to be crushed is provided in cooperation with the rotary blade, and the surface which is the rake face of the fixed blade is shifted from the rotation axis of the rotary shaft to dispose the rotary blade. The rake face and the rake face of the fixed blade are arranged at a certain shear angle at the start of shearing, and the blade portion of the rotary blade is composed of two linear ridge lines adjacent to each other in a substantially V shape, The blade of the fixed blade is composed of two ridge lines adjacent to each other in a substantially V shape facing the two adjacent linear ridge lines as the blade section of the rotary blade, and includes the ridge line of the fixed blade. of the flank of the fixed blade facing the rotation locus surface of the ridge line is formed in proximity surface proximate as possible to the rotation trajectory plane, the solid The blade portion of the blade has two concave curved ridge lines adjacent to each other in a substantially V shape adapted to the locus on the rake face of the fixed blade of the two adjacent linear ridge lines as the blade portion of the rotary blade. The blade portion of the fixed blade is formed on the front and back surfaces of the fixed blade, and the flank surface of the fixed blade is a flank surface when using the front blade portion and a flank surface when using the reverse blade portion after reversal. Is formed , a uniaxial shearing type crusher. 2. The uniaxial shearing type crusher according to claim 1, wherein each flank is formed on a flat surface close to a rotation locus surface of the blade portion . Upper Symbol Each flank uniaxial shearing crusher according to claim 1, characterized in that it is formed in an arc surface adjacent to the rotation locus surface of the blade portion.   The rotary blade is formed in a square column shape having a square cross section, and two adjacent ridgelines that form a substantially V shape out of the four ridgelines on the surface of the rotary blade and the other two adjacent to each other that form a substantially V shape. The uniaxial shear type crusher according to any one of claims 1 to 3, wherein each of the ridge lines is a blade portion.   The rotary blade is formed in a square column shape having a square cross section, and the adjacent two ridge lines and the remaining approximately ridge lines that form a substantially V shape on the surface of the total of four ridge lines on each of the front and back surfaces of the rotary blade. The two ridge lines adjacent to each other in a V shape, the two ridge lines adjacent to each other in a substantially V shape on the back surface, and the two adjacent ridge lines in a substantially V shape are used as blade portions, respectively. Item 5. The uniaxial shear crusher according to any one of items 1 to 4.   A plurality of the rotary blades are arranged with a constant phase difference in the axial direction of the rotary shaft, the fixed blades are formed in a long plate shape, and the fixed blades have a substantially V shape of the plurality of rotary blades. A plurality of blade portions made of two adjacent ridge lines are formed in a saw blade shape so as to face a plurality of blade portions made of two adjacent ridge lines. 1 axis | shaft shearing type crusher of any one of 1-5.   The uniaxial shearing type crusher according to any one of claims 1 to 6, wherein the rake face of the fixed blade is inclined forwardly downward toward the rotation axis with respect to the horizontal axis.

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