JP2018094536A - Striking type crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a striking type crusher which can reduce the frequency of cleaning operation for removing deposited dust.SOLUTION: A striking type crusher includes: a main shaft 21, a plurality of disk members 23, a rotor liner 25, a hammer 24 and a dust invasion prevention member 26. The plurality of disk members 23 are arranged side by side at an interval in an axial line direction of the main shaft 21 and are rotated integrally with the main shaft 21. The rotor liner 25 closes a part of an outer circumference of a disk-like space S between the disk members 23. The hammer 24 is pivotally supported swingably between the disk members 23 on an opening part 27 as a part on which the rotor liner 25 is not arranged. The dust invasion prevention member 26 is arranged on the side closer to the axial line of the main shaft 21 than the rotor liner 25 between the disk members 23. The hammer 24, the rotor liner 25 and the dust invasion prevention member 26 are provided such that an installation position with respect to the disk members 23 can be changed in a circumferential direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an impact crusher.

  2. Description of the Related Art Conventionally, a hit type crusher that crushes an object by hitting the object is known. Patent document 1 discloses this kind of blow-type crusher.

  The blow-type crusher of Patent Document 1 includes a rotating body. Although the detailed configuration of the rotating body is not described in Patent Document 1, the rotating body is, for example, a main shaft (shaft) that is rotationally driven, and the main shaft that is arranged at intervals along the main shaft. It is conceivable to include a disk member that rotates integrally and a hammer that is swingably provided in a space between the disk members. In this configuration, when the main shaft and the disk member are rotated, centrifugal force acts on the hammer, and the hammer protrudes outward from the disk member. In this state, when the object is put into the striking crusher, the hammer strikes the object, and the object is crushed and broken into pieces.

Special table 2014-500796 gazette

  In the striking crusher configured as described above, in order to enable the hammer to sufficiently oscillate (rotate) and escape from the impact applied as a reaction, out of the outer periphery of the space between the disk members, At least a range that overlaps the rotation trajectory of the hammer is configured to form an opening that is open to the outside. For this reason, there is a problem that dust generated when the object is crushed enters and accumulates in the space between the disk members from the opening.

  If dust accumulates unevenly in the space between the disk members, vibration occurs due to the bias in the balance of gravity when the main shaft and disk members rotate, which worsens the environment around the percussion crusher. There was a case. On the other hand, the cleaning work for removing dust from the inside of the space between the disk members is very laborious, and it has been strongly desired to reduce the frequency of the cleaning work.

  This invention is made in view of the above situation, The objective is to reduce the frequency of the cleaning operation | work for removing the accumulated dust in an impact-type crusher.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, an impact crusher having the following configuration is provided. That is, this striking crusher includes a main shaft, a plurality of disk members, an outer periphery closing member, a hammer, and a dust intrusion prevention member. The plurality of disk members are arranged side by side in the axial direction of the main shaft, and rotate integrally with the main shaft. The outer periphery closing member closes a part of the outer periphery of the space between the disk members. The hammer is pivotally supported between the disk members in an opening, which is a portion where the outer periphery closing member is not disposed. The dust intrusion prevention member is disposed between the disk members on a side closer to the axis of the main shaft than the outer periphery closing member. Further, the hammer, the outer periphery closing member, and the dust intrusion prevention member are provided such that the installation position with respect to the disk member can be changed in the circumferential direction.

  Thus, even if dust enters the space between the disk members through the opening, the dust penetration preventing member can prevent the dust from entering the back of the space. As a result, it is possible to reduce the frequency and labor of cleaning work for removing dust that causes vibration. In addition, there is a case where it is desired to rotate by changing the installation position of the hammer for reasons such as wear of the disk member in the vicinity of the hammer, but even in this case, the position of the dust intrusion prevention member can be easily changed and handled. Can do.

  ADVANTAGE OF THE INVENTION According to this invention, the frequency of the cleaning operation | work for removing the accumulated dust can be reduced in an impact type crusher.

The side surface schematic diagram which shows the whole structure of the impact type crusher which concerns on one Embodiment of this invention. The figure which shows typically a mode when the disk-shaped space between disk members is seen in the direction along the rotating shaft line of the main axis. The perspective view which shows a mode that a rotor liner and a dust intrusion prevention member are attached or detached.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view showing an overall configuration of a batting crusher 10 according to an embodiment of the present invention.

  The hit-type crusher 10 crushes the target object by giving a hit to the input target object, and makes it into fragments. As the objects to be thrown into the blow-type crusher 10, those that are relatively large and have large variations in dimensions and strength, such as scrap cars, metal scrap, and industrial waste (oversized garbage) are assumed.

  The striking crusher 10 of this embodiment mainly includes a case 1, a roll feeder 12, a grate 13, an adjustable ceiling grate 14, and a rotating body 20.

  The case 1 forms an outline of the impact type crusher 10, and the roll feeder 12, the grate 13, the adjustable ceiling grate 14, and the rotating body 20 are accommodated therein. An input port 2 opened to the outside is formed at the upper part of the case 1, and an object can be input into the batting crusher 10 from the input port 2. The lower end portion of the case 1 is installed on the ground, the floor, etc. via the vibration isolating members 3, 3,.

  The roll feeders 12 and 12 promote rotation of the thrown object toward the rotating body 20 by rotating. Further, as the roll feeders 12 and 12 rotate, the object is supplied toward the rotating body 20 by a substantially constant amount. In addition, although FIG. 1 illustrates a case where the impact type crusher 10 includes a plurality of roll feeders 12 and 12, this is merely an example, and the number of roll feeders 12 may be larger than this. It may be less.

  The rotating body 20 hits and crushes an object. As the rotating body 20 rotates, the hammer 24 protrudes outward from the rotating body 20 by centrifugal force and acts on the object. A detailed configuration of the rotating body 20 will be described later.

  The great 13 is disposed along the lower part of the rotating body 20. The great 13 is provided with a discharge port having a predetermined size. Fragments that have been crushed by the rotating body 20 and have become smaller than a certain size fall through a discharge port of the great 13 onto a conveyor or vibration feeder installed below the impact type crusher 10 and are conveyed. The

  The adjustable ceiling grate 14 is disposed above the rotating body 20. The adjustable ceiling grate 14 is provided with a discharge port. The fragments that have been crushed by the rotating body 20 and fall through the discharge port of the adjustable ceiling grate 14 fall onto a conveyor or vibration feeder installed below the impact crusher 10 and are conveyed.

  Next, a detailed configuration of the rotating body 20 will be described with reference to FIG. FIG. 2 is a diagram schematically showing a state in which the disk-like space S between the disk members 23 is viewed in the direction along the rotation axis of the main shaft 21.

  The rotating body 20 mainly includes a main shaft 21, a plurality of pins 22, a plurality of disk members 23, a plurality of hammers 24, a plurality of rotor liners (peripheral closing members) 25, and a plurality of dust intrusion prevention members 26. I have.

  The main shaft 21 is a long shaft-like member that is rotationally driven by a drive source (not shown). A plurality of spacers (tubular portions) 29 are arranged on the main shaft 21 at intervals in the rotational axis direction. Each spacer 29 in the present embodiment is formed in a substantially regular hexagonal cylindrical shape so as to surround the main shaft 21, and is fixed to the main shaft 21 so as not to rotate by key coupling.

  The pin 22 is a long shaft-like member that extends from one end of the rotating body 20 to the other end. The pin 22 is disposed in parallel with the rotation axis of the main shaft 21. The pins 22 are arranged at equal intervals in the circumferential direction around the rotation axis of the main shaft 21 and rotate integrally with the main shaft 21. In the present embodiment, six pins 22 are arranged side by side at intervals of 60 ° in the circumferential direction around the rotation axis of the main shaft 21.

  The disk member 23 is a disk-shaped member. A plurality of disk members 23 are arranged side by side with a certain interval in the axial direction of the main shaft 21 in a state where the central portion is penetrated by the main shaft 21 and the outer peripheral portion is penetrated by the plurality of pins 22. Is done. The disk member 23 is fixed to the spacer 29 so as not to rotate. As the main shaft 21 is driven to rotate, the disk member 23 rotates integrally with the main shaft 21.

  One disk-like space (space) S is formed between two adjacent disk members 23 among the plurality of disk members 23. That is, a plurality of disk-like spaces S are arranged at regular intervals in the axial direction of the main shaft 21.

  The hammer 24 is disposed in each disk-shaped space S. When viewed with respect to one disk-shaped space S, the hammer 24 is rotatably supported by one pin 22 of the plurality of pins 22 or two or more pins 22 that are not adjacent to each other in the circumferential direction. The hammer 24 is pivotally supported between the disk members 23 in an opening 27 where the rotor liner 25 is not disposed. The rotation trajectory of the hammer 24 is secured by the opening 27. In other words, the rotation locus of the hammer 24 is arranged so as not to overlap with the rotor liner 25. As the main shaft 21 is rotationally driven, the hammer 24 is in a state in which the striking portion acting on the object protrudes outward by centrifugal force. Further, when the object collides with the striking portion of the hammer 24 with a strong force, the hammer 24 rotates (swings) in a direction to escape from the object. This makes it difficult for the hammer 24 to be damaged by a strong impact generated as a reaction.

  The hammers 24 are supported by different pins 22 when viewed from the disk-shaped space S adjacent in the axial direction of the main shaft 21. In other words, the hammer 24 is supported on any one of the pins 22 so that the hammers 24 arranged in the adjacent disk-shaped spaces S have different phases. Thereby, for example, the hammer 24 can be spirally arranged along the outer periphery of the rotating body 20.

  The rotor liner 25 shown in FIGS. 2 and 3 closes a part of the outer periphery of the disk-shaped space S between the disk members 23. The rotor liner 25 of the present embodiment closes a portion other than the opening 27 in the outer periphery of the disc-shaped space S between the disc members 23. When viewed about each of the disk-like spaces S, the rotor liner 25 is attached to each of the pins 22 to which the hammer 24 is not attached so as to cover the disk-like space S from the outside in the radial direction. .

  The configuration of the rotor liner 25 will be described in more detail with reference to FIG. FIG. 3 is a perspective view showing how the rotor liner 25 and the dust intrusion prevention member 26 are attached and detached.

  The rotor liner 25 includes a closing part 25a, a pin insertion cylinder part 25b, and a rib 25c.

  The closing part 25a covers the disk-shaped space S from the outside in the radial direction. The closing portion 25a is an arc-shaped plate. This arc corresponds to an arc of a circle centered on the rotation axis of the main shaft 21 (an arc forming the outer periphery of the rotating body 20), and is formed over an angle range of approximately 60 °. The length of the closing portion 25a in the direction along the rotation axis of the closing portion 25a is set to a length that can cover the thickness of the disk-shaped space S.

  The pin insertion cylinder part 25b is a part into which the pin 22 is inserted, and is formed in a cylindrical shape. The through hole formed in the pin insertion cylinder portion 25b is directed parallel to the rotation axis of the main shaft 21. The pin insertion cylinder portion 25b is disposed closer to the rotation axis of the main shaft 21 than the closing portion 25a. The pin insertion cylinder portion 25b is disposed in the center of the angular range of the arc of the closing portion 25a and is formed integrally with the closing portion 25a.

  The rib 25c is a protruding portion having a certain thickness formed between the inner surface of the closing portion 25a (the surface exposed to the disk-shaped space S) and the outer peripheral surface of the pin insertion cylindrical portion 25b. . The rib 25 c protrudes in a direction approaching the rotation axis of the main shaft 21.

  The dust intrusion prevention member 26 shown in FIGS. 2 and 3 prevents dust from entering the inside of the disk-shaped space S. The dust intrusion prevention member 26 is disposed between the adjacent disk members 23 on the side closer to the rotation axis of the main shaft 21 than the rotor liner 25. The dust intrusion prevention member 26 is disposed at the back of the opening 27 so as to fill a gap between the rotor liner 25 and the main shaft 21.

  As shown in FIG. 3, the dust intrusion prevention member 26 has a pair of extending portions 26a, 26a, a connecting portion 26b, and reinforcing portions 26c, 26c.

  The pair of extending portions 26a, 26a are formed in an elongated plate shape. The pair of extending portions 26a, 26a face each other in such a posture that one end in the longitudinal direction is closer to each other than the other end. The length of each extending portion 26 a in the longitudinal direction is substantially equal to the distance from the outer peripheral surface of the spacer 29 to the inner peripheral surface of the closing portion 25 a of the rotor liner 25. The length of the extending portion 26a in the direction along the rotation axis of the main shaft 21 is formed to be approximately the same as the size of the gap formed between the adjacent disk members 23 (thickness of the disk-shaped space S). .

  The connecting portion 26b is a plate-like portion that connects one end portions of the pair of extending portions 26a and 26a. In the present embodiment, the connection portion from the end portion on the side connected to one extension portion 26a of the pair of extension portions 26a, 26a to the end portion on the side connected to the other extension portion 26a. When viewed in the direction along the rotation axis of the main shaft 21, the length of 26b is slightly shorter than the length of one side of the regular hexagon that is the outer shape of the spacer 29 formed as a substantially regular hexagonal cylinder. Yes.

  The reinforcement part 26c is a small piece-like part provided so as to connect between the extension part 26a and the connection part 26b. By providing the reinforcing portion 26c between the extending portion 26a and the connecting portion 26b, the dust intrusion preventing member 26 is reinforced so as to maintain its shape.

  A recessed portion 26d for inserting the rib 25c of the rotor liner 25 is formed at the end portion of the extending portion 26a where the connecting portion 26b is not disposed. The concave portion 26d is formed in a groove shape having a depth enough to insert the rib 25c.

  The dust intrusion prevention member 26 is formed in a line-symmetric shape when viewed in the direction along the rotation axis of the main shaft 21. Further, as shown in FIG. 3, the dust intrusion prevention member 26 is provided in a 180 ° rotationally symmetric shape with respect to the center line C in the direction perpendicular to the rotation axis of the main shaft 21. Not only the dust intrusion prevention member 26 but also the shapes of the rotor liner 25 and the hammer 24 are 180 ° rotationally symmetric with respect to the center line C in the direction perpendicular to the rotation axis of the main shaft 21.

  The dust intrusion prevention member 26 having such a configuration has the connection portion 26b in contact with the spacer 29 and the other end portions of the extension portions 26a and 26a in contact with the rotor liner 25. It is arranged on the side closer to the rotation axis of the main shaft 21 than the rotor liner 25. At this time, the connection portion 26b contacts the outer peripheral surface of the spacer 29 along one side of a regular hexagon formed by the spacer 29 when viewed in the direction along the rotation axis of the main shaft 21. On the other hand, the other end portions of the extending portions 26a and 26a are in contact with or close to the inner peripheral surface of the closing portion 25a in a state where the rib 25c of the rotor liner 25 is inserted into the recessed portion 26d. Thereby, the dust intrusion prevention member 26 is installed in a manner that it can be easily attached to and detached from the rotor liner 25 and the spacer 29. In particular, since the dust intrusion prevention member 26 of the present embodiment is sandwiched and supported between the spacer 29 and the rotor liner 25, a separate member such as a fastening member is not required for installation. Therefore, the dust intrusion prevention member 26 can be disposed in the disk space S very easily.

  When the dust intrusion prevention member 26 is attached to the disk-shaped space S, the opening 27 and the back side (as viewed from the opening 27) of the disk-shaped space S are partitioned by the dust intrusion prevention member 26. In particular, in this embodiment, as shown in FIG. 2, the dust intrusion prevention member 26 sandwiches the rotation locus of the hammer 24 in the circumferential direction of the disk member 23 when viewed in the direction along the rotation axis of the main shaft 21. Are provided in pairs. More specifically, the dust intrusion prevention member 26 is installed on the rotor liner 25 in the angular range on both sides adjacent to the angular range in which the hammer 24 is disposed when viewed in the direction along the rotation axis of the main shaft 21. ing. In other words, the dust intrusion prevention member 26 is disposed in an angle range adjacent to the angle range in which the hammer 24 is disposed. Thereby, the dust that has entered the disk-shaped space S through the opening 27 can be reliably prevented from entering the inner space of the disk-shaped space S. Specifically, dust accumulation on the inner peripheral surface of the closing portion 25a of the rotor liner 25 can be suppressed.

  Further, the rotary body 20 of the present embodiment has an angular range (60 ° angular range) obtained by equally dividing the disk-like space S into six in the circumferential direction when viewed in the direction along the rotational axis of the main shaft 21. ) In which the pins 22 are arranged. The pin 22 is arrange | positioned in the position used as the center of each angle range. The position at which the dust intrusion prevention member 26 is installed can be easily changed to another angle range with the angle range as a unit.

  Furthermore, in the present embodiment, the positions where the hammer 24 and the rotor liner 25 are installed can be easily changed in units of the above angle range. In other words, it is possible to change which pin 22 supports the hammer 24 and the rotor liner 25.

  That is, when viewed with respect to each disk-shaped space S, either the hammer 24 or the rotor liner 25 is selected in an angular range of 30 ° in one circumferential direction and 30 ° in the opposite direction with each pin 22 at the center. Installed. The hammer 24 or the rotor liner 25 is supported by being fitted to the pin 22 in the disc-shaped space S.

  By the way, in conventional hitting type crushers, it is known that the wear of the disk member in the vicinity of the hammer progresses faster than the wear of the disk member in other parts (other than the vicinity of the hammer) as the operation time becomes longer. It has been. Specifically, since the dust-containing air is cut by the hammer and flows a lot on both sides of the hammer, the dust contained in the air easily collides with the disk members on both sides of the hammer, thereby causing wear at the location. Proceed relatively quickly. Under such circumstances, there are cases where it is desired to rotate the hammer by changing the installation position of the hammer to another place in the circumferential direction.

  In such a case, in the striking crusher 10 according to the present embodiment, the hammer 24 and the rotor liner 25 are fitted and installed on the pin 22, so that by removing the pin 22, as shown in FIG. The rotor liner 25 can be removed and the attachment position with respect to the rotating body 20 can be easily changed.

  Further, since the dust intrusion prevention member 26 of the present embodiment is merely sandwiched and supported between the spacer 29 and the rotor liner 25, when the position of the hammer 24 is moved (rotated), it is added to it. Thus, the position of the dust intrusion prevention member 26 can be easily changed. As described above, in the striking crusher 10 according to the present embodiment, when it is desired to rotate the hammer 24 by changing the installation position of the hammer 24, the position of the dust intrusion prevention member 26 can be easily changed.

  As described above, the striking crusher 10 of the present embodiment includes the main shaft 21, the plurality of disk members 23, the rotor liner (outer periphery closing member) 25, the hammer 24, and the dust intrusion prevention member 26. Prepare. The plurality of disk members 23 are arranged side by side in the axial direction of the main shaft 21 and rotate integrally with the main shaft 21. The rotor liner 25 closes a part of the outer periphery of the disk-shaped space (space) S between the disk members 23. The hammer 24 is pivotally supported between the disk members 23 in an opening 27 where the rotor liner 25 is not disposed. The dust intrusion prevention member 26 is disposed between the disk members 23 on the side closer to the rotation axis (axis) of the main shaft 21 than the rotor liner 25. Further, the hammer 24, the rotor liner 25, and the dust intrusion prevention member 26 are provided so that the installation position with respect to the disk member 23 can be changed in the circumferential direction.

  As a result, even if dust enters the disk-shaped space S between the disk members 23 through the opening 27, the dust penetration preventing member 26 prevents the dust from entering the inner space of the disk-shaped space S. Can do. As a result, it is possible to reduce the frequency and labor of cleaning work for removing dust that causes vibration. Further, there is a case where it is desired to rotate by changing the installation position of the hammer 24 due to the wear of the disk member 23 in the vicinity of the hammer 24, but even in this case, the position of the dust intrusion prevention member 26 is easily changed. Can respond.

  Moreover, in the impact type crusher 10 of this embodiment, the dust intrusion prevention member 26 is detachably installed on the rotor liner 25.

  Thereby, the position changing operation of the dust intrusion preventing member 26 can be easily performed.

  Further, in the striking crusher 10 according to the present embodiment, a spacer 29 surrounding the main shaft 21 is disposed in the disk-shaped space S between the disk members 23. The dust intrusion prevention member 26 is sandwiched and supported between the spacer 29 and the rotor liner 25.

  Thereby, the dust intrusion prevention member 26 can be arranged in the disk-like space S between the disk members 23 with a simple configuration.

  Further, in the striking crusher 10 of the present embodiment, the rotor liner 25 is formed with a rib 25 c that protrudes in a direction approaching the rotation axis of the main shaft 21. The dust intrusion prevention member 26 has recesses 26d and 26d into which the ribs 25c can be inserted.

  Thereby, a simple configuration in which the dust intrusion preventing member 26 can be attached to and detached from the rotor liner 25 can be realized.

  Further, in the striking crusher 10 of the present embodiment, the dust intrusion prevention member 26 sandwiches the rotation locus of the hammer 24 in the circumferential direction of the disk member 23 when viewed in the direction along the rotation axis of the main shaft 21. Are provided in pairs.

  Thereby, it is possible to reliably prevent dust from entering the back of the space between the disk members 23.

  Moreover, in the impact type crusher 10 of the present embodiment, the dust intrusion prevention member 26 is configured in a line-symmetric shape when viewed in the direction along the rotation axis of the main shaft 21. Furthermore, in the striking crusher 10 of this embodiment, the dust intrusion prevention member 26 is formed in a 180 ° rotationally symmetric shape.

  This eliminates the need to manage the direction in which the dust intrusion prevention member 26 is installed, thus facilitating assembly work and position change work. Even when one side of the dust intrusion prevention member 26 is worn, the mounting direction can be rotated 180 ° and the opposite side can be used, so that the durability can be improved.

  Moreover, in the impact type crusher 10 of this embodiment, the hammer 24 and the rotor liner 25 are formed in a 180-degree rotationally symmetric shape.

  This eliminates the need to manage the orientation in which the hammer 24 and the rotor liner 25 are installed, so that the assembling work and the position changing work are further facilitated.

  Further, in the striking crusher 10 of the present embodiment, the hammer 24 is disposed in a part of the six angular ranges obtained by equally dividing the disc-like space S between the disc members 23 in the circumferential direction. Yes. The rotor liner 25 is arranged for each angle range in an angle range where the hammer 24 is not arranged. The dust intrusion prevention member 26 is disposed in an angular range adjacent to the angular range in which the hammer 24 is disposed.

  Thereby, the positions of the hammer 24, the rotor liner 25, and the dust intrusion prevention member 26 can be easily changed in units of a predetermined angle range (60 ° angle range with each pin 22 being the center of the angle range). In addition, since the dust intrusion prevention member 26 can be disposed close to the hammer 24, a configuration in which dust does not easily accumulate in the space between the disk members 23 can be realized.

  Moreover, the dust intrusion prevention member 26 provided in the striking crusher 10 of the present embodiment is a connection that connects a pair of extending portions 26a and 26a and one end portions of the pair of extending portions 26a and 26a. Part 26b. In the dust intrusion prevention member 26, the connecting portion 26 b is provided in contact with the spacer 29, and the pair of extending portions 26 a and 26 a are provided in contact with the rotor liner 25.

  As a result, the dust intrusion prevention member 26 having a simple configuration can prevent dust from entering the back of the disk-shaped space S between the disk members 23.

  Next, a modified example of the above embodiment will be briefly described. In the description of this modification, the same or similar members as those in the above-described embodiment may be denoted by the same reference numerals in the drawings, and description thereof may be omitted.

<Modification 1>
In the above embodiment, the dust intrusion prevention member 26 is sandwiched and supported between the spacer 29 and the rotor liner 25 without using a fastening member or the like. However, the present invention is not necessarily limited to this. For example, instead of this, the extending portion 26a and the disk member 23 are overlapped via a stay or the like, and the stay and the disk member 23 use a fastening member such as a bolt. And may be fixed. Alternatively, it is assumed that the attachment portion extends from the distal end portion of the extension portion 26a, and this attachment portion is overlapped with the rotor liner 25, and the attachment portion and the rotor liner 25 are fixed using a fastening member such as a bolt. It is good as it is. Alternatively, the dust intrusion prevention member 26 may be fixed to both the disk member 23 and the rotor liner 25 via a stay or the like.

  In this configuration, the dust intrusion prevention member 26 can be securely fixed at a desired position, and the dust intrusion prevention member 26 can be prevented from falling off.

  Thus, in the impact type crusher 10 according to this modification, the dust intrusion prevention member 26 is fixed to at least one of the disk member 23 and the rotor liner 25 using the fastening member.

  Thereby, a simple configuration in which the dust intrusion preventing member 26 is detachably fixed to at least one of the disk member 23 and the rotor liner 25 can be realized.

<Modification 2>
In the above embodiment, the dust intrusion prevention member 26 is supported by being sandwiched between the spacer 29 and the rotor liner 25. However, instead of this, the dust intrusion prevention member 26 is provided with a pin insertion cylinder part for inserting the pin 22, and the pin insertion cylinder part is fitted (through) the pin 22 so that dust intrusion occurs. The prevention member 26 may be provided in the disk-shaped space S.

  Thus, in the impact type crusher 10 according to this modification, the dust intrusion prevention member 26 is passed through and supported by the pin 22 that supports the hammer 24 or the rotor liner 25.

  Thereby, the structure which supports the dust intrusion prevention member 26 with a small number of parts is realizable.

  The preferred embodiments and modifications of the present invention have been described above, but the above configuration can be modified as follows, for example.

  In the above embodiment, the dust intrusion prevention member 26 is provided in pairs (on both sides) so as to sandwich the rotation locus of the hammer 24 in the circumferential direction of the disk member 23. However, the present invention is not necessarily limited to this. For example, instead of this, the dust intrusion prevention member 26 may be provided so as to be adjacent to only one side of the rotation locus of the hammer 24 in the circumferential direction of the disk member 23. For example, the dust intrusion prevention member 26 can be provided only on the side where dust easily enters due to the influence of the rotating direction of the rotating body 20 or the like.

  In the above embodiment, the dust intrusion prevention member 26 is provided with the reinforcing portion 26c for securing the strength between the extending portion 26a and the connecting portion 26b. However, the reinforcing portion 26c is not an essential configuration and may be omitted. Alternatively, instead of or in addition to the above configuration, a reinforcing portion that connects the pair of extending portions 26a, 26a may be provided.

  In the above embodiment, the hammer 24 (opening 27), the rotor liner 25, and the dust intrusion prevention member 26 are arranged in units of angular ranges obtained by equally dividing the disk-like space S into six in the circumferential direction. However, these members may be arranged in units of angular ranges that are equally divided into three, four, five, seven or more, for example. In other words, the number of pins 22 is not limited to six, and may be three, four, five, or seven or more.

  In the above embodiment, the spacer 29 is formed in a substantially regular hexagonal cylindrical shape so as to surround the main shaft 21, but the shape is not limited thereto. That is, the shape of the spacer 29 may be a substantially regular polygonal cylinder having more or less sides than this, or may be a cylinder or the like. Further, the shape of the dust intrusion prevention member 26 can be appropriately changed in accordance with the shape of the spacer 29.

  The dimensions and the like of the dust intrusion prevention member 26 shown in the above embodiment are merely examples, and can be changed as appropriate. For example, the length of the connection part 26b from the end part on the side connected to one extension part 26a to the end part on the side connected to the other extension part 26a of the pair of extension parts 26a, 26a. The length may be longer than the length of one side of the spacer 29 formed as a substantially regular polygonal cylinder. That is, the dust intrusion prevention member 26 may be formed in a shape that does not overlap with the rotation trajectory of the hammer 24.

  In the above embodiment, the hitting crusher 10 includes one rotating body 20, but the number of the rotating bodies 20 is not limited to this, and may include a plurality of rotating bodies 20.

  In the above embodiment, the main shaft 21 of the rotating body 20 has been described as having the rotation axis oriented in the horizontal direction (see FIG. 1), but the orientation of the rotation axis of the main shaft 21 is not limited to this. . That is, the present invention can also be applied to a striking crusher that rotates around a main axis with the rotation axis directed in the vertical direction.

DESCRIPTION OF SYMBOLS 10 Impact type crusher 21 Main shaft 22 Pin 23 Disc member 24 Hammer 25 Rotor liner 26 Dust intrusion prevention member S Disc-shaped space (space)

Claims (10)

The spindle,
A plurality of disk members arranged side by side in the axial direction of the main shaft and rotating integrally with the main shaft;
An outer periphery closing member for closing a part of the outer periphery of the space between the disk members;
A hammer that is pivotally supported between the disk members in an opening that is a portion where the outer periphery closing member is not disposed;
Between the disk members, a dust intrusion prevention member disposed closer to the axis of the main shaft than the outer periphery closing member,
With
The hammer type crusher, wherein the hammer, the outer periphery closing member, and the dust intrusion prevention member are provided so that an installation position with respect to the disk member can be changed in a circumferential direction. A striking crusher according to claim 1,
The impact crushing machine is characterized in that the dust intrusion prevention member is detachably installed on the outer periphery closing member. A striking crusher according to claim 2,
A cylindrical portion surrounding the main shaft is disposed in the space between the disk members,
The dust type intrusion prevention member is sandwiched between and supported by the cylindrical portion and the outer periphery closing member. The striking crusher according to claim 2 or 3,
The outer periphery closing member is formed with a rib protruding in a direction approaching the axis of the main shaft,
The dust crushing prevention member is formed with a concave portion into which the rib can be inserted. A striking crusher according to claim 1,
The dust type intrusion prevention member is fixed to the disk member and / or the outer periphery closing member by using a fastening member. A striking crusher according to claim 1,
The dust type intrusion prevention member is supported by being passed through a shaft that supports the hammer or the outer periphery closing member. A striking crusher according to any one of claims 1 to 6,
When viewed in the axial direction of the main shaft, the dust intrusion prevention member is provided in pairs so as to sandwich the rotation trajectory of the hammer in the circumferential direction of the disk member. The striking crusher according to any one of claims 1 to 7,
When viewed in the axial direction of the main shaft, the dust intrusion prevention member is configured in a line-symmetric shape. A striking crusher according to any one of claims 1 to 8,
The hammer is arranged in a part of a plurality of angular ranges obtained by equally dividing the space between the disk members in the circumferential direction,
The outer periphery closing member is disposed for each angle range in the angle range where the hammer is not disposed.
The dust type intrusion prevention member is disposed in the angle range adjacent to the angle range in which the hammer is disposed.   A dust intrusion prevention member provided in the percussion crusher according to any one of claims 1 to 9.

Images