JP2005334710A - Single shaft shear type crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a single shaft shear type crusher which is capable of improving durability, enhancing crushing efficiency and positioning the mutual positional relation of respective rotation bodies by connecting a plurality of the respective rotation bodies with a rotation shaft according to not only key connection but also a connection shaft, thereby enhancing the connection strength between the respective rotation bodies and the rotation shaft and suppressing the damages to keys and key grooves due to the shock upon the shear crushing. <P>SOLUTION: A crushing chamber 2 is formed in a crushing frame 1, a rotation shaft 4 is laterally installed, a plurality of rotation bodies 5 are arranged in parallel on the rotation shaft and a plurality of the rotation blades 7 are arranged on the outer peripheral parts of the respective rotation bodies at an interval with each other. The fixed blades 9 which crush the material W to be crushed by shear in cooperation with the rotation blades are arranged on the crushing frame, the rotation bodies are fixed to the rotation shaft according to the key connection K so as to prevent the rotation, further, fitting holes 11 are formed on the plurality of the rotation bodies, and the connection shaft 12 for connecting the respective rotation bodies is inserted and put into the fitting holes 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

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, and a plurality of rotating bodies are arranged in parallel on the rotating shaft. There is known a structure in which a plurality of rotary blades are arranged at intervals on the outer peripheral portion of the slab, and a fixed blade for shearing and crushing the object to be crushed is provided on the crusher body in cooperation with the rotary blades. It has been.
Japanese Patent No. 3029620

  However, in the case of these conventional structures, each of the plurality of rotating bodies is fixed and fixed to the rotating shaft only by key coupling, and the key and the key groove are easily damaged by the impact at the time of shear crushing, and the durability is lowered. There is a disadvantage that the crushing efficiency may decrease.

  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 plurality of rotating bodies are arranged in parallel on the rotating shaft, a plurality of rotating blades are arranged at intervals on the outer peripheral portion of each rotating body, and the crushing machine body cooperates with the rotating blades. A fixed blade for shearing and crushing the object to be crushed is provided, the rotating body is fixed to the rotating shaft by a key connection, and a fitting hole is formed in each of the plurality of rotating bodies, In the uniaxial shearing type crusher, a connecting shaft for connecting each rotating body to the fitting hole is inserted and arranged.

  The invention described in claim 2 is characterized in that the connecting shaft comprises a plurality of connecting short shafts capable of connecting adjacent rotating bodies, and the invention described in claim 3 is characterized in that The connecting shaft comprises a connecting long shaft capable of connecting a plurality of rotating bodies simultaneously.

  As described above, the present invention is the invention according to claim 1, wherein the rotating body is fixed to the rotating shaft by key coupling, and a fitting hole is formed in each of the plurality of rotating bodies. Since a connecting shaft for connecting each rotating body to the fitting hole is inserted and arranged, each of the plurality of rotating bodies is connected to the rotating shaft by a connecting shaft in addition to key connection. The connection strength between the rotating body and the rotating shaft can be increased, damage to the key and keyway due to impact during shear crushing can be suppressed, durability can be improved, and crushing efficiency can be increased. Furthermore, the mutual positional relationship between the rotating bodies can be positioned.

  In the invention according to claim 2, since the connecting shaft is composed of a plurality of connecting short shafts that can connect adjacent rotating bodies, damage to the key and the key groove due to an impact at the time of shear crushing is suppressed. Durability can be improved, crushing efficiency can be increased, the mutual positional relationship between the rotating bodies can be positioned, and the rotating body can be easily incorporated into the rotating shaft. In the invention according to claim 3, the connecting shaft is composed of a connecting long shaft capable of connecting a plurality of rotating bodies at the same time. These rotating bodies can be connected at the same time, and the rotating body can be easily incorporated into the rotating shaft.

  1 to 10 show an embodiment of the present invention, FIGS. 1 to 9 show a first embodiment, and FIG. 10 shows a second embodiment.

  In the first embodiment shown in FIGS. 1 to 9, reference numeral 1 denotes a crushing machine body, in which a crushing chamber 2 is formed. A rotation shaft 4 is provided in the chamber 2 and a rotation mechanism (not shown) for rotating the rotation shaft 4 is provided. Fourteen pentagonal plate-shaped rotating bodies 5... It is inserted into a non-rotating state by a key coupling K comprising a key 4a, and 14 rotating bodies 5 are fixed in parallel to the rotating shaft 4 by left and right holding plates 6 and 6, and each of the rotating bodies 5. Five rotary blades 7... Are arranged on the outer peripheral top portion so as to be detachable at intervals by an attaching / detaching mechanism 8. Each rotary blade 7... Opens in a substantially V shape from the rear to the front in the rotational direction. In this case, the opening angle of V is formed at 150 degrees, the outer edge of the rotary blade 7 is formed at the blade edge H, and the rotary blade 7. Two sets of plate-like fixed blades 9 and 9 for shearing and crushing the object W to be crushed in cooperation with each other are arranged opposite to each other, and the leading edges of the fixed blades 9 and 9 are formed on the blade edges 9a and 9a. The screen plate 10 having the discharge holes 10a is disposed below the rotary blades 7.

  In this case, each said rotary blade 7 ... consists of a pair of blade body 7a * 7a arrange | positioned at the both right and left sides of a rotation direction, and this pair of blade body 7a * 7a is opened substantially toward the front from a rotation direction back. A blade base 8a which can be positioned and arranged in a V shape is formed, and a pair of blade bodies 7a and 7a are fixed to the blade base 8a with bolts 8b and 8b, and the five top partial blades of the rotating body 5. The fitting recess 8c is formed, the blade receiving base 8a and the wedge member 8d are fitted into the fitting recess 8c, and the blade receiving base 8a is attached to the rotating body 5 by attaching the wedge member 8d to the rotating body 5 with the mounting bolt 8e. It is configured to be detachably fixed.

  In this case, the pair of left and right blade bodies 7a and 7a are formed in the same shape of a substantially rhomboid trapezoid, and the outer edge and the inner edge of each blade body 7a and 7a are formed on the blade edge H, respectively.

  In this case, as shown in FIG. 2 and FIG. 3, the 14 rotating bodies are made into a set, and the key groove 5a is formed at the same position on the rotating bodies 5 and 5 in pairs. The key groove 5a is formed by shifting the angle by 5 degrees, and first, a set of rotating bodies 5 and 5 having an angle of 0 degrees is arranged at the central position, and the rotating bodies 5 and 5 having the angle shifted by 5 degrees are disposed at the central position. Are arranged on both sides of the outer side of each of the rotating bodies 5, and a pair of rotating bodies 5 and 5 whose angles are further shifted by 10 degrees are disposed on both sides of the outer side of the rotating bodies 5 and 5 whose angles are shifted by 5 degrees, Hereinafter, this is repeated, and a total of 14 rotary bodies 5 are arranged in parallel on the rotary shaft 4 and the rotary blades 7 are arranged with their phases shifted in the rotational direction.

  Also, in this case, as shown in FIGS. 2 and 9, the plurality of rotating bodies 5 are formed with fitting holes 11... And the adjacent rotating bodies 5 and 5 are fitted with holes 11. A plurality of connecting short shafts 12a as a plurality of pin-shaped connecting shafts 12 are interposed therebetween.

  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. In the crushing chamber 2, the rotating shaft 4 is rotated by a rotating mechanism such as a motor (not shown), and a plurality of rotating bodies 5 are provided on the rotating shaft 4. Arranged in parallel, a plurality of rotary blades 7 are arranged at intervals on the outer peripheral portion of each rotating body 5, and the rotary blade 7 rotates clockwise in the direction of the arrow in the drawing by the rotation of the rotary shaft 4. The to-be-crushed object W is sheared and crushed by the cooperation with the fixed blade 9 attached to the crushing machine body 1 by the rotation of the blade 7, and the crushed to-be-crushed object W falls through the discharge hole 10a of the screen plate 10, After the object to be crushed W larger than the discharge hole 10a is turned upward again, Is degree shear fracture, in this way so that the shear crushing of the crush material W is carried out.

  At this time, the rotating bodies 5 are fixedly fastened to the rotating shaft 4 by a key coupling K, and fitting holes 11 are formed in the plurality of rotating bodies 5. Since the connecting shafts 12 for connecting the rotating bodies 5... Are connected to the holes 11..., The plurality of rotating bodies 5. In addition to this, the connecting shaft 12 is also connected, so that the connection strength between the rotating bodies 5... And the rotating shaft 4 can be increased, and the damage to the key and the key groove due to the impact during shear crushing is suppressed. The durability can be improved, the crushing efficiency can be increased, and the mutual positional relationship between the rotating bodies 5.

  In this case, since the connecting shaft 12 is composed of a plurality of connecting short shafts 12a that can connect adjacent rotating bodies, damage to the key and the key groove due to an impact at the time of shear crushing can be suppressed. The crushing efficiency can be improved, the mutual positional relationship between the rotating bodies 5 can be positioned, and the rotating body 5 can be easily incorporated into the rotating shaft 4. Thus, the rotating body 5 can be easily replaced.

  The second embodiment shown in FIG. 10 shows another structure. In this case, the plurality of rotating bodies 5... Are formed with fitting holes 11. A connecting long shaft 12b is formed as a connecting shaft 12 that can be connected, and the connecting long shaft 12b is inserted into the fitting holes 11.

  In this second embodiment, the same effect as the first embodiment can be obtained, and a plurality of rotating bodies 5 can be simultaneously connected. Incorporation into the rotating shaft 4 can be easily performed.

  The present invention is not limited to the above-described embodiment. For example, the shape and structure of the crushing machine body 1, the rotary blade 7, the fixed blade 9, the fitting hole 11, and the connecting shaft 12 are designed appropriately. It will be changed.

  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 a front sectional 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. It is a fragmentary sectional side view of the first embodiment of the present invention. 1 is a partially exploded perspective view of a first embodiment of the present invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is a fragmentary sectional side 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 partial front sectional view of the first embodiment of the present invention. It is a front sectional view of the second embodiment of the present invention.

Explanation of symbols

W object to be crushed 1 crusher body 2 crushing chamber 4 rotating shaft 5 rotating body 7 rotating blade 9 fixed blade 11 fitting hole 12 connecting shaft 12a connecting short shaft 12b connecting long shaft

Claims (3)

  A crushing chamber is formed in the crushing machine body, a rotating shaft is provided horizontally in the crushing chamber, a plurality of rotating bodies are arranged in parallel on the rotating shaft, and a plurality of rotating blades are spaced around the outer peripheral portion of each rotating body. The crushing machine body is provided with a fixed blade for shearing and crushing the material to be crushed in cooperation with the rotary blade, and the rotary body is fixed to the rotary shaft by key connection. In addition, a uniaxial shearing type crusher, wherein a fitting hole is formed in each of the plurality of rotating bodies, and a connecting shaft for connecting the rotating bodies to the fitting holes is inserted and arranged.   2. The uniaxial shear type crusher according to claim 1, wherein the connecting shaft comprises a plurality of connecting short shafts capable of connecting adjacent rotating bodies. 2. The uniaxial shear type crusher according to claim 1, wherein the connecting shaft comprises a connecting long shaft capable of connecting a plurality of rotating bodies simultaneously.

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