JP4171538B2 - Crushing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
[0002]
  The present invention relates to a hammer type crusher.
[Prior art]
[0003]
  2. Description of the Related Art Conventionally, used glass bottles and the like have been finely crushed from the viewpoint of facilitating reuse of crushed resource waste such as glass bottles. As a crusher used for crushing such glass bottles, various mechanisms and structures have been proposed and put to practical use. Among them, a hammer type crusher is particularly simple in structure and low in operating cost. It is widely used because of its advantages.
[0004]
  A conventional hammer-type crusher has a rotating shaft driven by a driving source such as a motor passing through the crushing chamber in the crushing chamber of a casing having a crushing chamber having a predetermined volume inside. It is arranged and fixed, and a plurality of hammers are attached to a portion corresponding to the inside of the crushing chamber of the drive shaft at a predetermined interval, and the hammer is rotated integrally with the drive shaft. An object to be crushed such as a glass bottle is beaten with a hammer, and the object is finely crushed by the impact force.
[0005]
  In this hammer type crusher, not only the hammer but also the rotating shaft on which the hammer is supported is arranged in the crushing chamber, and during crushing work, the crushing object and the crushed fine fragments Since it is always in contact, wear gradually progresses as work time accumulates, leading to a reduction in crushing capacity. For this reason, it is necessary to replace these periodically to restore the crushing capacity.
[Problems to be solved by the invention]
[0006]
  By the way, in the conventional hammer type crusher, as described above, the rotary shaft is fixedly arranged in the crushing chamber, and the hammer is directly fixed to the rotary shaft. For example, if this replacement work is to be performed outside the crushing chamber, it is necessary to attach, remove, carry in and out the heavy-weight rotating shaft, resulting in a large work man-hour and a very high replacement cost. For this reason, in general, an operator enters the crushing chamber and performs an exchange operation.
[0007]
  However, the work in the crushing chamber is difficult to take proper work operations because the work space is narrow, and the crushing fine powder adhering to the wall surface of the crushing chamber is scattered and floated around by the movement of the operator, and the working environment is impaired. Therefore, the work efficiency is low and poor. In particular, in the replacement work of the rotating shaft, since this is a heavy weight, the work efficiency is lowered more significantly, and there is a big problem in terms of work cost.
[0008]
  In addition, since the rotating shaft has an integral structure, if this wears out, it is necessary to replace the entire rotating shaft, which is uneconomical because of the high cost of replacement parts.
[0009]
  Therefore, in view of the problems in the conventional crusher, the present invention aims to improve the work efficiency in exchanging hammers and the like by enabling the exchange work of hammers and the like outside the crushing chamber. The purpose of this is to keep the cost of replacement parts low.
[Means for Solving the Problems]
[0010]
  The present invention employs the following configuration as a specific means for solving such a problem.
[0011]
  In 1st invention of this application, the casing 1 which made the inside the crushing chamber 3, the rotating shaft V arrange | positioned across the said crushing chamber 3, and rotationally driven by a suitable drive source, The outer periphery of the said rotating shaft V And a plurality of hammers 10, 10... That rotate integrally therewith, and the material to be crushed in the crushing chamber 3 is accompanied by the rotation of the plurality of hammers 10, 10. In the crusher designed to crush by impact force, the rotation axis V isThe crushing chamber 3 is disposed so that one end 21a of the crushing chamber 3 protrudes outward from the end face wall 1A of the casing 1.The hammer 10 is attached to the outer peripheral surface of the first rotary shaft 21 that is rotationally driven, and is removably fitted to the outside of the first rotary shaft 21, and the hammer 10, 10,. In the crushing chamber 3, the second rotary shaft 22 is configured to rotate integrally with the first rotary shaft 21, and the second rotary shaft 22 is rotated in the first rotation. The hammers 10, 10... Are taken out to the outside of the crushing chamber 3 by being pulled out from the state of being inserted into the shaft 21 toward the one end 21 a of the first rotating shaft 21.
[0012]
  In the second invention of the present application,The casing 1 whose inside is the crushing chamber 3 and the crushing chamber 3 are placed sideways. A rotary shaft V which is cut and arranged and rotated by an appropriate drive source, and a plurality of hammers 10, 10... Which are attached to the outer periphery of the rotary shaft V and rotate integrally therewith, In the crushing machine that crushes the object to be crushed put into the chamber 3 by the impact force accompanying the rotation of the plurality of hammers 10, 10,. The hammers 10, 10,... Are attached to the shaft 21 and the outer peripheral surface thereof, and are removably fitted to the outside of the first rotating shaft 21, and the hammers 10, 10,. In the inserted and inserted state, the second rotary shaft 22 is configured to be rotatable integrally with the first rotary shaft 21, andAn auxiliary shaft 23 having substantially the same diameter as the first rotating shaft 21 and attached to the one end 21a of the first rotating shaft 21 substantially coaxially therewith is provided, and the second rotating shaft 22 is connected to the first rotating shaft 21. The second rotary shaft 22 is supported by the auxiliary shaft 23 when the first rotary shaft 21 is pulled out from the state of being inserted into the first rotary shaft 21.
【The invention's effect】
[0013]
  In the present invention, the following effects can be obtained by adopting such a configuration.
[0014]
  (1)  According to the crusher according to the first invention of the present application,The crushing chamber 3 is disposed so that one end 21a of the crushing chamber 3 protrudes outward from the end face wall 1A of the casing 1.The hammer 10 is attached to the outer peripheral surface of the first rotary shaft 21 that is rotationally driven, and is removably fitted to the outside of the first rotary shaft 21, and the hammer 10, 10,. In the crushing chamber 3, the second rotary shaft 22 is configured to rotate integrally with the first rotary shaft 21, and the second rotary shaft 22 is rotated in the first rotation. The hammers 10, 10... Are taken out of the crushing chamber 3 by being pulled out from the state of being inserted into the shaft 21 toward the one end 21 a of the first rotating shaft 21.
[0015]
  Therefore, at the time of crushing work, the second rotating shaft 22 is fitted and inserted into the first rotating shaft 21 so that the hammers 10, 10... Are located in the crushing chamber 3. The hammer 10, 10... Rotates as the first rotary shaft 21 rotates, and the material to be crushed in the crushing chamber 3 is impacted by the hammer 10, 10. It is crushed finely by force.
[0016]
  On the other hand, when replacing the hammers 10, 10,.Since the first rotating shaft 21 penetrates the crushing chamber 3 and one end 21a thereof is arranged to protrude outward from the end face wall 1A of the casing 1,By pulling out the second rotating shaft 22 toward the one end 21a of the first rotating shaft 21, the hammers 10, 10,... Attached to the second rotating shaft 22 are taken out to the outside of the crushing chamber 3, and Both the replacement work of the hammers 10, 10... Or the replacement work of the second rotating shaft 22 can be performed outside the crushing chamber 3. As a result, for example, compared to the case where the worker enters the crushing chamber 3 and performs the replacement work as in the prior art, the work space is sufficiently secured, and the work can be efficiently performed under the proper work operation and work posture. Is something that can be done. In addition, in this case, the pulverized fine powder adhering to the inner wall surface or the like of the crushing chamber 3 is not scattered and floated, and the work is performed in a safe and comfortable working environment, and the work efficiency is further improved. . As a result, the number of work steps can be reduced and the work cost can be kept low.
[0017]
  Further, like the hammers 10, 10,..., During the crushing operation, the rotary shaft V that is constantly in contact with the object to be crushed or the crushed pieces gradually wears out and needs to be replaced. Since V is constituted by the first rotating shaft 21 and the second rotating shaft 22 and only the second rotating shaft 22 actually causes wear, it is only necessary to replace the second rotating shaft 22. Therefore, for example, compared to the conventional case where the entire rotating shaft needs to be replaced, the replacement part cost is low and economical, and the workability of the replacement work is improved by the weight of the replacement part being small. It will also do.
[0018]
  Thus, according to the crusher of the present invention, the rotary shaft V has the double structure of the first rotary shaft 21 and the second rotary shaft 22 and the hammers 10, 10,... Are attached to the outer second rotary shaft 22. With this configuration, it is possible to achieve a useful effect of reducing the work cost or replacement part cost in the replacement work of the hammers 10, 10,.
[0019]
  (2)  According to the crusher according to the second invention of the present application,The hammer 10 is attached to the outer periphery of the first rotary shaft 21 that is rotationally driven, and the hammer 10, 10,. In the insertion state located in the crushing chamber 3, the rotary shaft V is constituted by the second rotary shaft 22 that can be rotated integrally with the first rotary shaft 21, and the second rotary shaft 22 is connected to the second rotary shaft 22. The hammers 10, 10... Are taken out of the crushing chamber 3 by being pulled out from the state of being inserted into the first rotary shaft 21 toward the one end 21 a of the first rotary shaft 21.
[0020]
  Therefore, at the time of crushing work, the second rotating shaft 22 is fitted and inserted into the first rotating shaft 21 so that the hammers 10, 10... Are located in the crushing chamber 3. The hammer 10, 10... Rotates as the first rotary shaft 21 rotates, and the material to be crushed in the crushing chamber 3 is impacted by the hammer 10, 10. It is crushed finely by force.
[0021]
  On the other hand, at the time of exchanging the hammers 10, 10,..., The hammer 10, attached to the second rotary shaft 22 by pulling the second rotary shaft 22 toward the one end 21a of the first rotary shaft 21. 10... Is taken out of the crushing chamber 3, and both the replacement operation of the hammers 10, 10... Or the replacement operation of the second rotating shaft 22 can be performed outside the crushing chamber 3. Become. As a result, for example, compared to the case where the worker enters the crushing chamber 3 and performs the replacement work as in the prior art, the work space is sufficiently secured, and the work can be efficiently performed under the proper work operation and work posture. Is something that can be done. In addition, in this case, the pulverized fine powder adhering and remaining on the inner wall surface of the crushing chamber 3 is not scattered and floated, and the work is performed in a safe and comfortable working environment, and the work efficiency is further improved. . As a result, the number of work steps can be reduced and the work cost can be kept low.
[0022]
  Further, like the hammers 10, 10,..., During the crushing operation, the rotary shaft V that is constantly in contact with the object to be crushed or the crushed pieces gradually wears out and needs to be replaced. Since V is constituted by the first rotating shaft 21 and the second rotating shaft 22 and only the second rotating shaft 22 actually causes wear, it is only necessary to replace the second rotating shaft 22. Therefore, for example, compared to the conventional case where the entire rotating shaft needs to be replaced, the replacement part cost is low and economical, and the workability of the replacement work is improved by the weight of the replacement part being small. It will also do.
[0023]
  Thus, according to the crusher of the present invention, the rotary shaft V has the double structure of the first rotary shaft 21 and the second rotary shaft 22 and the hammers 10, 10,... Are attached to the outer second rotary shaft 22. With this configuration, it is possible to achieve a useful effect of reducing the work cost or replacement part cost in the replacement work of the hammers 10, 10,.
[0024]
  Furthermore, in the crusher of this invention,An auxiliary shaft 23 having substantially the same diameter as the first rotating shaft 21 and attached to the one end 21a of the first rotating shaft 21 substantially coaxially therewith is provided, and the second rotating shaft 22 is the first rotating shaft. Since the second rotating shaft 22 is supported by the auxiliary shaft 23 when being pulled out from the one end 21a side, the second rotating shaft 22 is pulled out from the first rotating shaft 21. The auxiliary shaft 23 functions as a guide for the second rotating shaft 22 when pushed (that is, when the hammers 10, 10,... Are taken out and incorporated into the crushing chamber 3), and the drawing / pushing operation is further facilitated. Thus, the work efficiency in the replacement work is further improved.
[0025]
  Further, when the hammers 10, 10,... Are taken out of the crushing chamber 3 and replaced, the second rotating shaft 22 is supported by the auxiliary shaft 23, so that the second rotating shaft The stability at the time of the work of 22 becomes good, and the work efficiency is increased accordingly.
DETAILED DESCRIPTION OF THE INVENTION
[0026]
  1 to 4 show a crusher Z according to the present invention. This crusher Z is a hammer type crusher that crushes objects to be crushed such as glass bottles by the impact force of a hammer, and includes a casing 1, a rotary shaft unit V, and a hammer unit U, which will be described below, as a basic configuration. The configuration realizes a “crushing operation” described later, and further includes a support member 6 and an auxiliary shaft 23 described later in order to facilitate the “exchange operation” described later.
[0027]
  Casing 1
  The casing 1 includes a first end face wall 1A and a second end face wall 1B that face each other at a predetermined interval, and a third end face wall 1C that is disposed across the both end face walls 1A and 1B so as to connect them. The internal space surrounded by these walls 1A, 1B, 1C is used as the crushing chamber 3.
[0028]
  Further, as shown in FIGS. 2 and 3, the first end face wall 1 </ b> A is provided with an opening 4 for work and an opening 5 that serves as an inlet for an object to be crushed. And the said opening 4 is formed in the approximate center position of the said 1st end surface wall 1A, and is covered with the door body 2 so that opening and closing is possible.
[0029]
  The door body 2 is connected to the casing 1 via a hinge mechanism 16 that pivotally connects the bracket 18 on the door body 2 side and the bracket 17 on the third end face wall 1C side by a pivot shaft 19. It is attached and can be opened and closed in a substantially horizontal direction around the hinge mechanism 16. The door body 2 closes the opening 4 in the “closed position” shown in FIGS. 1 and 2, and the door body 2 with respect to the first end wall 1 </ b> A in the “open position” shown in FIGS. 3 and 4. Thus, the opening 4 is opened by extending in a direction substantially perpendicular to the opening.
[0030]
  Further, a fitting insertion hole 27 that allows the first rotating shaft 21 to be inserted as described below is inserted into a coaxial position between the door body 2 and the second end face wall 1B of the casing 1 facing each other across the crushing chamber 3. , 28 are formed. In addition, the 1st bearing 31 and the 2nd bearing 32 are each fixedly arrange | positioned by the fixing bolts 34, 34, ... in the site | part of each of these fitting insertion holes 27 and 28, respectively. In addition, at the axial rear side position of the second bearing 32 (position opposite to the first bearing 31 with respect to the second bearing 32), the third bearing 33 is spaced apart from the second bearing 32 by a predetermined distance. The first and second bearings 32 and 33 are arranged so as to be coaxial with each other.
[0031]
  Rotating shaft unit V
  The rotary shaft unit V corresponds to the “rotary shaft” in the claims, and as shown in FIGS. 2, 4, and 5, the first rotary shaft 21 described below andSecond rotating shaft 22It consists of and.
[0032]
  First rotating shaft 21
  The first rotating shaft 21 is disposed in a state of penetrating the crushing chamber 3 of the casing 1, and is rotatably supported by the first bearing 31, the second bearing 32, and the third bearing 33, An end face of one end 21a supported by the first bearing 31 is a cut-off end face, and a screw hole 25 for connecting an auxiliary shaft 23 described later is formed on the end face (see FIG. 5). Note that one end 21a of the first rotating shaft 21 protrudes slightly outward from the outer end of the first bearing 31 (thus, it is located outward from the inner wall position of the crushing chamber 3). .
[0033]
  Further, the other end 21b of the first rotary shaft 21 supported by the third bearing 33 protrudes outward in the axial direction from the third bearing 33, and the pulley 7 Is fixed. Accordingly, the first rotating shaft 21 is rotationally driven by a driving source such as a motor via the belt 8 wound around the pulley 7.
[0034]
  The first bearing 31 is removed from the door body 2 at the time of replacement work in which the door body 2 is set to the “open position” as will be described later. In the bolt holes of the fixing bolts 34, 34,... After the first bearing 31 is removed, fixing bolts 48, 48,. Is screwed.
[0035]
  Second rotating shaft 22
  The second rotating shaft 22 is constituted by a tubular body that is slidably fitted to the outside of the second rotating shaft 22, and the axial length thereof is the first end face wall 1 </ b> A and the second end face wall in the casing 1. It is set shorter than the inner interval of 1B by a predetermined amount. As shown in FIG. 2, the second rotating shaft 22 is a portion of the first rotating shaft 21 located inside the crushing chamber 3 (that is, between the first bearing 31 and the second bearing 32. The first rotating shaft 21 is slidably inserted in the axial direction with spacers 40 and 40 interposed on both ends in the axial direction on the outside of the portion).
[0036]
  Thus, the second rotary shaft 22 is fitted to the first rotary shaft 21 in a state where the second rotary shaft 22 is located in the crushing chamber 3.InsertionIn placeFIG.As shown in FIG. 3, the first rotating shaft 21 and the second rotating shaft 22 are engaged with each other in the rotating direction by a key 39, and the second rotating shaft 22 is rotated integrally with the first rotating shaft 21. (Hereinafter, for convenience of explanation, the position of the second rotating shaft 22 at this time is referred to as “operation position”).
[0037]
  As shown in FIG. 5, the second rotary shaft 22 is inserted into the inner peripheral surface of the end 22 a located near the pulley 7 of the second rotary shaft 22 when the second rotary shaft 22 is fitted. A dust seal 42 is attached to prevent the crushed fine powder from entering the gap between the first rotating shaft 21 and the first rotating shaft 21. Furthermore, a seal ring 41 is attached to each of the spacers 40 and 40 arranged so as to face both end surfaces in the axial direction of the second rotating shaft 22, and the second rotating shaft 22 is “operated”. In the state set to “position”, the seal rings 41, 41 are in press contact with both end surfaces of the second rotating shaft 22, respectively, and a sealing property between them is ensured.
[0038]
  Further, the second rotating shaft 22 serves as an attachment member for the hammer unit U described below, and a hammer support bracket 11 having a pair of discs facing each other at a predetermined interval is provided with the second rotating shaft 22. A plurality (7 in this embodiment) are fixed on the outer peripheral surface of 22 at predetermined intervals in the axial direction.
[0039]
  Hammer unit U
  As shown in FIGS. 2 and 3, the hammer unit U has a hammer 10 having a hammer head 10a attached to the tip of an arm portion 10b having a predetermined length. The hammer unit U is attached to the second rotary shaft 22 of the rotary shaft unit V. Each of the above-described hammer support brackets 11, 11,... Is configured so as to be swingable. Therefore, each hammer 10, 10,... Of the hammer unit U rotates integrally with the rotation shaft unit V to perform a required crushing action.
[0040]
  Auxiliary shaft 23
  The auxiliary shaft 23 is used only at the time of exchanging the hammers 10, 10,..., And has substantially the same diameter as the first rotating shaft 21, as shown in FIGS. And it is comprised with the tubular body which has an axial length substantially equivalent to the axial length of the said 2nd rotating shaft 22. As shown in FIG. The auxiliary shaft 23 has a connecting bolt 26 screwed to a screw hole 25 provided on the end surface of the first rotating shaft 21 on the end surface of one end 23a, and a screw hole 29 on the end surface of the other end 23b. Provided. A support bolt 45 provided on the handle 46 is screwed into the screw hole 29.
[0041]
  Support member 6
  The support member 6 is for supporting the other end 23b of the auxiliary shaft 23 during replacement work, and as shown in FIGS. 3 and 4, a first arm portion 6A extending in two orthogonal directions, It is comprised with an "L" -shaped board material provided with the 2nd arm part 6B. The support member 6 is detachably attached to the back surface of the door body 2 by fixing bolts 48, 48,... Using the bolt holes for attaching the first bearing 31 to the first arm portion 6A. In the attached state to the door body 2, the second arm portion 6 </ b> B faces the first end face wall 1 </ b> A of the casing 1 substantially in parallel thereto.
[0042]
  A recess 61 for fitting the other end 23b of the auxiliary shaft 23 is formed on the tip side of the second arm portion 6B and on the same axis as the first rotating shaft 21, as shown in FIG. In addition, an insertion hole 62 through which the support bolt 45 of the handle 46 is inserted is formed at the center of the recess 61.
[0043]
  Further, a rotation stop pin 47 extending from the second arm portion 6B to the back side thereof is attached to an intermediate position of the second arm portion 6B. The anti-rotation pin 47 is inserted into a hole (not shown) provided in the arm portion 10b of the hammer 10 located on the outermost side among the hammers 10, 10,. This is to prevent U from rotating.
[0044]
  The above is the configuration of the crusher Z.
[0045]
  Explanation of crushing work and replacement work of crusher Z
  Next, the crushing operation using the crusher Z and the exchanging operation of the hammers 10, 10,.
[0046]
  Crushing work
  As shown in FIGS. 1 and 2, the crushing operation is performed by setting the second rotating shaft 22 of the rotating shaft unit V to the “operation position” and attaching the second rotating shaft 22 to the second rotating shaft 22. Both the hammer units U are located in the crushing chamber 3 of the casing 1 and one end 21a of the first rotating shaft 21 is supported by the first bearing 31 provided on the door body 2 fixed at the “closed position”. It is done in the state.
[0047]
  That is, in this state, the first rotating shaft 21 is rotated by a drive source to rotate the hammers 10, 10... Of the hammer unit U, and a glass bottle or the like is inserted into the crushing chamber 3 from the opening 5. When the object to be crushed is introduced, the object to be crushed is beaten by the hammers 10, 10... Rotating in the crushing chamber 3, and the object to be crushed is sequentially crushed by the impact force at that time, and gradually crushed finely. It is a piece.
[0048]
  During this crushing operation, crushing fine powder is floating in the crushing chamber 3, but the spacers 40, 40 respectively disposed at both axial ends of the second rotating shaft 22 are provided with seal rings 41. Therefore, the crushed fine powder is reliably prevented from entering the fitting insertion gap between the second rotating shaft 22 and the first rotating shaft 21. As a result, even if the second rotating shaft 22 is moved relative to the first rotating shaft 21 in the replacement operation described below, the first rotating shaft 21 and the second rotating shaft are caused by the crushed fine powder that has entered the insertion gap. It is possible to prevent the 22 insertion portion from being damaged.
[0049]
  Clearing work
  On the other hand, when the object to be crushed is crushed by the impact force of each of the hammers 10, 10,..., The second rotating shaft 22 and the above-described second rotary shaft 22 are provided. Since each hammer support bracket 11, 11,... Always contacts the object to be crushed or the crushed pieces during the crushing operation, they are gradually worn out with the accumulation of the crushing operation time and the crushing capacity is lowered. Therefore, for example, the hammers 10, 10,..., The second rotating shaft 22 and the like need to be replaced every predetermined operating time.
[0050]
  Here, the working state will be described taking as an example the replacement of only the hammers 10, 10,.
[0051]
  When exchanging the hammers 10, 10..., In the crusher Z in the state of FIG. 2, first, the first bearing 31 is first removed from the door body 2, and the first The support action of the rotating shaft 21 is released. Thereafter, the fixing bolts 35, 35,... Fixing the door body 2 are removed, and the door body 2 is opened as shown in FIG. 3 and FIG. By setting the door 2 to the “open position”, the first rotating shaft 21, the second rotating shaft 22, and the rotating shaft unit V are all exposed to the outside from the opening 4.
[0052]
  Next, the auxiliary shaft 23 is coaxially connected and fixed to the end surface of the one end 21a of the first rotating shaft 21 facing the outside via a connecting bolt 26 provided at the one end 23a. Further, the support member 6 is attached to the inner surface side of the door body 2 by fixing bolts 48, 48,..., And the auxiliary shaft 23 of the auxiliary shaft 23 is placed in a recess 61 provided in the second arm portion 6B of the support member 6. The other end 23 b is fitted, and the other end 23 b of the auxiliary shaft 23 is fixed to the support member 6 side by the support bolt 45 of the handle 46. Thus, the auxiliary shaft 23 and the first rotating shaft 21 are integrated, and this integrated body is supported by the three of the second bearing 32, the third bearing 33, and the support member 6.
[0053]
  Thereafter, a hand is inserted into the crushing chamber 3 from the opening 4, and the second rotating shaft 22 and the hammer unit U attached thereto are integrally pulled through the opening 4 to the front, and these are crushed. The hammer unit U is pulled out to the outside of the chamber 3 and the hammer unit U is prevented by the rotation stop pin 47 (the state shown in FIG. 4).
[0054]
  When the second rotary shaft 22 or the like is pulled out, both the first rotary shaft 21 and the auxiliary shaft 23 serve as sliding guides, and the pull-out operation is performed easily and smoothly.
[0055]
  Further, in the state in which the hammer unit U or the like is pulled out, the position of the one end 21a of the first rotating shaft 21 is located outside the first end face wall 1A of the casing 1, so that the second rotation The shaft 22 is fitted over the auxiliary shaft 23 from the one end 21a portion of the first rotating shaft 21, and is supported by both of them. Further, the integrated first rotary shaft 21 and auxiliary shaft 23 are supported at both ends by the second bearing 32 and the support member 6. As a result, the second rotary shaft 22 and the hammer unit are supported. The support of U is performed stably and reliably.
[0056]
  In this state, the hammers 10, 10,... Are removed from the second rotary shaft 22 and replaced with new ones. In this case, in the crusher Z according to this embodiment, the hammers 10, 10,... Can be exchanged outside the crushing chamber 3, so that, for example, an operator can crush as in the conventional case. Compared to the case of entering the chamber 3 and performing the exchange work, a work space is sufficiently secured, and the work can be performed efficiently under an appropriate work operation and work posture. In addition, the work in a safe and comfortable working environment is realized without the pulverized fine powder remaining on the inner wall surface of the crushing chamber 3 being scattered and floating. As a result, the work efficiency in the replacement work is further increased, and the work cost can be kept low by reducing the work man-hours.
[0057]
  When the replacement work of the hammers 10, 10,... Is completed, the second rotating shaft 22 and the hammer unit U are accommodated in the crushing chamber 3 by a procedure reverse to the operation procedure. In this case, since the second rotating shaft 22 is exposed in the crushing chamber 3 during the exchange operation, it is also conceivable that crushed fine powder floating in the crushing chamber 3 adheres to the exposed portion. . However, in this embodiment, since the dust seal 42 is disposed on the one end 22a side of the second rotary shaft 22, it is assumed that crushed fine powder has adhered to the exposed portion of the first rotary shaft 21, for example. However, when the second rotary shaft 22 is pushed into the first rotary shaft 21, the adhered crushed fine powder is removed by the dust seal 42, and the crushed fine powder is removed from the first rotary shaft 21 and the second rotary shaft 22. Intrusion into the insertion gap is prevented in advance.
[0058]
  This completes the replacement work of the hammers 10, 10,.
[0059]
  In the replacement operation, the auxiliary shaft 23 is attached to the one end 21a side of the first rotation shaft 21, and the second rotation shaft 22 and the hammer unit U are supported by the auxiliary shaft 23 during the replacement operation. However, as another work mode, for example, without providing the auxiliary shaft 23, the first end 22 a side of the second rotary shaft 22 pulled out to the one end 21 a side of the first rotary shaft 21 is used as it is. It is also possible to support the rotating shaft 21 on the one end 21a side, or to support the other end 22b of the second rotating shaft 22 by a support material different from the support member 6, and perform the replacement work in this state. In particular, in the former case, the first rotary shaft 21 is in a cantilevered support state, but the first rotary shaft 21 is supported so that moment support can be provided by the second bearing 32 and the third bearing 33. Therefore, no trouble occurs, and the cost can be reduced by the amount that the auxiliary shaft 23 is not required.
[0060]
  Further, when only the hammers 10, 10,... Are not replaced as described above, for example, when the second rotating shaft 22 is also replaced together with the hammers 10, 10,. Is set to the “open position”, and without attaching the auxiliary shaft 23 and the support member 6, the second rotating shaft 22 is pulled out to the one end 21 a side of the first rotating shaft 21 as it is, and this is rotated to the first rotating shaft. After removing from 21, a new second rotating shaft 22 and hammers 10, 10... May be assembled to the first rotating shaft 21. In this embodiment, since the rotary shaft unit V is composed of the first rotary shaft 21 and the second rotary shaft 22, it is necessary to replace them by wear. Since only the rotary shaft 22 is used, for example, compared to a conventional configuration in which the rotary shaft is integrally formed and replaced as it is, the replacement part cost is low and economical. Since the weight is small, the workability of the replacement work is improved.
[0061]
  Furthermore, in the said embodiment, although the said supporting member 6 is attached to the said door body 2, in addition to this structure, for example, this supporting member 6 is the installation base 30 of the said casing 1 or the said crusher Z. The attachment position can be arbitrarily selected such as attaching to the side.
[Brief description of the drawings]
[0062]
FIG. 1 is a front view showing a configuration of a crusher according to the present invention during operation.
FIG. 2 is a view (partial cross section) taken along the line II-II in FIG.
FIG. 3 is a front view showing a configuration of the crusher according to the present invention at the time of inspection and maintenance.
4 is a view (partial cross section) taken along the line IV-IV in FIG. 3;
5 is an explanatory diagram of the structure of the rotary shaft unit shown in FIG. 2. FIG.
[Explanation of symbols]
[0063]
  1 is a casing, 1A is a first end face wall, 1B is a second end face wall, 1C is a third end face wall, 2 is a door body, 3 is a crushing chamber, 4 and 5 are openings, 6 is a support member, 7 is a pulley, 8 is a belt, 10 is a hammer, 11 is a hammer support bracket, 12 is a connecting pin, 16 is a hinge mechanism, 17 is a bracket, 18 is a bracket, 19 is a pivot shaft, 21 is a first rotation shaft, and 22 is a second rotation. Shaft, 23 auxiliary shaft, 24 collar, 25 screw hole, 26 coupling bolt, 31 first bearing, 32 second bearing, 33 third bearing, 34 and 35 fixing bolts, 39 key, 40 is a spacer, 41 is a seal ring, 42 is a dust seal, 45 is a support bolt, 46 is a handle, 47 is a locking pin, 48 is a fixing bolt, U is a hammer unit, V is a rotary shaft unit, and Z is a crusher. .

Claims (2)

A casing (1) whose inside is a crushing chamber (3), a rotating shaft (V) that is disposed across the crushing chamber (3) and is driven to rotate by an appropriate driving source, and the rotating shaft (V) A plurality of hammers (10), (10),... Which are attached to the outer periphery of the crushing chamber and rotate integrally therewith. 10), a crusher that crushes by the impact force associated with the rotation of (10),
The rotating shaft (V) is arranged and rotated in a state where it passes through the crushing chamber (3) and one end (21a) protrudes outward from the end face wall (1A) of the casing (1). The hammers (10), (10),... Are attached to the outer peripheral surface of the first rotating shaft (21) and are removably fitted to the outside of the first rotating shaft (21). 10), (10),... In a state of being inserted into the crushing chamber (3), the second rotating shaft (22) that can rotate integrally with the first rotating shaft (21). Configured,
The hammers (10), (10) are pulled out from the fitted state of the second rotating shaft (22) to the first rotating shaft (21) toward one end (21a) of the first rotating shaft (21). .. A crusher characterized in that is taken out of the crushing chamber (3). A casing (1) whose inside is a crushing chamber (3), a rotating shaft (V) that is disposed across the crushing chamber (3) and is driven to rotate by an appropriate driving source, and the rotating shaft (V) A plurality of hammers (10), (10),... Which are attached to the outer periphery of the crushing chamber and rotate integrally therewith. 10), a crusher that crushes by the impact force associated with the rotation of (10),
The rotary shaft (V) is driven to rotate, and the hammers (10), (10),... Are attached to the outer peripheral surface of the first rotary shaft (21), and the outer side of the first rotary shaft (21). In the insertion state in which the hammer (10), (10)... Is located in the crushing chamber (3), it can rotate integrally with the first rotating shaft (21). And the second rotation shaft (22) .
An auxiliary shaft (23) having substantially the same diameter as the first rotating shaft (21) and attached to the one end (21a) of the first rotating shaft (21) substantially coaxially therewith is provided.
When the second rotating shaft (22) is pulled out from the fitted state to the first rotating shaft (21) to the one end (21a) side of the first rotating shaft (21), the auxiliary shaft (23) A crusher characterized in that the second rotating shaft (22) is supported.

Images