JP2010240539A - Crushing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crushing device which easily feeds long materials to be crushed into a part housing the materials to be crushed, and effectively performs the function of crushing the long materials to be crushed. <P>SOLUTION: The crushing device includes: a crushing part 32 crushing the materials C to be crushed; a housing part 26 for materials to be crushed arranged right above the crushing part 32 with its right above part opened and housing the materials C to be crushed inside; a feeding part 28 for materials to be crushed of which one end part is communicated to the housing part 26 for materials to be crushed and is driven to feed the materials C to be crushed to the housing part 26 for materials to be crushed by moving the materials C to be crushed laid inside in a length direction; and a rotating and driving part 30 driving the feeding part 28 for materials to be crushed so that the other end part of the feeding part 28 for materials to be crushed rotates in a state that one end part of the feeding part 28 for materials to be crushed is kept communicated to the housing part 26 for materials to be crushed. The other end part of the feeding part 28 for materials to be crushed can gradually rotate upwards from a horizontally laid state of the feeding part 28 for materials to be crushed during the crushing operation of the crushing part 32. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a crushing apparatus for crushing various things such as waste, and for example, relates to a crushing apparatus suitable for crushing long waste such as pillars and beams of building waste.

  FIG. 7 is a view showing a conventional crushing device 2. As shown in the figure, this conventional crushing device 2 has a cylindrical object to be crushed and contained in an object container 4 such as an industrial waste (not shown) introduced through an opening opened at the upper end. The crushed material is supplied to a crushing portion 8 provided in the lower casing 6 of the material to be crushed, and the fine crushed material generated by crushing the material to be crushed by the crushing portion 8 is: It is discharged below the crushing portion 8.

  As such a crushing device similar to the conventional crushing device 2, for example, there is a device described in Patent Document 1.

  In the crushing unit 8 of the conventional crushing device 2, the crushing object supplied from the crushing material storage unit 4 includes a rotary blade (not shown) provided on the peripheral portion of the rotating rotor 10 of the crushing unit 8, The rotating rotor 10 is crushed between the two fixed blades 12 fixed to other members in the vicinity of the peripheral portions on both sides. A screen-type sieving member 14 formed in a lower portion of the rotary rotor 10 so as to be curved along the peripheral portion of the rotary rotor 10 and having a plurality of small holes (screen holes) (not shown) is provided on the rotary rotor 10. It arrange | positions so that it may have a some clearance gap between the surrounding parts.

  When the material to be crushed is crushed and crushed into crushed material having a size smaller than the diameter of each of a number of small holes (not shown) formed in the screen type sieving member 14, the screen type sieving member 14 It is discharged to the lower side through the small hole, and is discharged to a different place by being discharged onto a conveyor or the like (not shown).

  The crushed material that could not pass through the small holes of the screen-type sieve member 14 is rotated until it is crushed smaller than the diameter of the small holes of the screen-type sieve member 14 by being caught in the rotating operation of the rotary rotor 10. It continues to be crushed while circling along the circumference of the rotor 10.

JP 2001-353448 A

  However, in the crushing apparatus 2 according to the above-described prior art, for example, a long crushing object such as a column or a beam generated at the time of demolishing a house is to be put into the crushing object storage unit 4. In some cases, the object to be crushed must be raised in a posture in which the length direction of the object to be crushed is in a substantially vertical direction, and then the lower end thereof must be lifted higher than the upper end of the object to be crushed 4. there were.

  Alternatively, the lower end of the long object to be crushed is hooked on the upper end of the object to be crushed 4, and then the upper end of the object to be crushed is lifted higher than the upper end of the object to be crushed 4. Accordingly, there has been a problem that a long object to be crushed has to be raised until the length direction of the object to be crushed becomes a substantially vertical orientation.

  For this reason, it is necessary to prepare a dedicated device such as a heavy machine for lifting such a long crushed object, and even if a dedicated device such as a heavy machine is used, the long crushed object cannot be removed. When it is lifted high in a stable, almost vertical position, it creates a danger of falling, etc., and requires carefulness for such work, so the work efficiency is significantly reduced. There was a problem.

  In addition, when the crushing unit 8 starts crushing operation in a state where the length of the object to be crushed suddenly is in the vertical direction, the lower end portion of the long object to be crushed becomes the rotating rotor of the crushing unit 8. There was a problem that the crushing device 2 could not exhibit an effective crushing function because it was displaced from a position where it could be bitten between the 10 rotary blades and the fixed blade 12.

  Therefore, in view of the above problems, the present invention can easily supply a long object to be crushed into the object to be crushed and to exhibit an effective crushing function for the long object to be crushed. It is an object of the present invention to provide a crushing apparatus that can handle the above.

In order to solve the above problems, the crushing device according to the present invention is:
A crushing section for crushing the material to be crushed;
Arranged just above the crushing part, the part directly above itself is opened, and the object to be crushed accommodates the object to be crushed therein,
One end communicates with the object to be crushed and is driven so that the object to be crushed placed in the inside moves in the length direction of the object and supplies the object to be crushed to the object to be crushed To be crushed object supply unit,
A time for driving the crushed object supply unit so that one end of the crushed object supply unit communicates with the crushed object storage unit and the other end of the crushed object supply unit rotates. A dynamic drive unit,
During the crushing operation of the crushing part, the other end part can be gradually rotated upward from the state in which the crushing object supply part is laid horizontally.

In the crushing apparatus according to the present invention,
During the crushing operation of the crushing part, while rotating the other end part gradually from the state in which the crushed object supply part is laid down horizontally, it is turned back so as to return downward. Further, it can be turned upward again.

In the crushing apparatus according to the present invention,
The crushing portion includes a rotary blade that is provided on a peripheral portion of the rotary rotor and rotates integrally, and a fixed blade that is fixed to the other member in the vicinity of the peripheral portion of the rotary rotor. .

In the crushing apparatus according to the present invention,
A sieving member is provided below the rotating rotor of the crushing part, for sieving the crushed material finely crushed by the crushing part.

In the crushing apparatus according to the present invention,
The object to be crushed has a bottom plate portion having a bottom surface and a pair of wall plate portions that rise from both sides of the bottom plate portion and face each other.

In the crushing apparatus according to the present invention,
When the other end of the object to be crushed is rotated to the maximum, the length direction of the object to be crushed substantially coincides with the vertical direction, and the one end of the object to be crushed is at the one end. The pair of wall plate portions are arranged so as to enter the inside of the object to be crushed and to form a cylindrical space between the object supply part to be crushed and the object to be crushed. To do.

According to such a crushing apparatus of the present invention,
A crushing section for crushing the material to be crushed;
Arranged just above the crushing part, the part directly above itself is opened, and the object to be crushed accommodates the object to be crushed therein,
One end communicates with the object to be crushed and is driven so that the object to be crushed placed in the inside moves in the length direction of the object and supplies the object to be crushed to the object to be crushed To be crushed object supply unit,
A time for driving the crushed object supply unit so that one end of the crushed object supply unit communicates with the crushed object storage unit and the other end of the crushed object supply unit rotates. A dynamic drive unit,
During the crushing operation of the crushing part, the other end part can be gradually rotated upward from the state in which the crushed object supply part is laid horizontally,
A long crushed object can be easily supplied into the crushed object container, and an effective crushing function can be exhibited in the crushing device for the long crushed object.

Moreover, according to the crushing apparatus of the present invention,
During the crushing operation of the crushing part, while rotating the other end part gradually from the state in which the crushed object supply part is laid down horizontally, it is turned back so as to return downward. By making it possible to rotate upward again,
In the middle of gradually rotating the other end of the crushed object supply part upward, the crushed objects are stretched together, and the crushed object is in the lower part in the rotating crushed object supply part. It is possible to solve the problem of not sliding down toward the object to be crushed.

Moreover, according to the crushing apparatus of the present invention,
The crushing part has a rotary blade that is provided on the peripheral part of the rotary rotor and rotates integrally, and a fixed blade that is fixed to the other member in the vicinity of the peripheral part of the rotary rotor,
An effective crushing function can be exhibited in the crushing device for a long object to be crushed.

Moreover, according to the crushing apparatus of the present invention,
Under the rotating rotor of the crushing part, a sieve member for sieving the crushed material finely crushed by the crushing part is provided,
Only the crushed material with a predetermined size or less can be discharged.

Moreover, according to the crushing apparatus of the present invention,
The object to be crushed has a bottom plate portion having a bottom surface and a pair of wall plate portions that rise from both side portions of the bottom plate portion and face each other.
The crushed object supply unit can surely easily supply the crushed object to the crushed object container, and prevents the supplied crushed object from rolling down to the outside of the crushed object supply unit. can do.

Moreover, according to the crushing apparatus of the present invention,
When the other end of the object to be crushed is rotated to the maximum, the length direction of the object to be crushed substantially coincides with the vertical direction, and the one end of the object to be crushed is at the one end. A pair of wall plate parts enter the inside of the object to be crushed and disposed so as to form a cylindrical space between the object to be crushed object and the object to be crushed object,
When the other end of the object to be crushed is rotated to the maximum, the long object to be crushed can maintain a substantially vertical posture in the cylindrical part. Before the end portion starts to rotate, it is only necessary to lay a long object to be crushed on the bottom surface of the bottom plate part in the state in which the object to be crushed is horizontally laid. The object to be crushed can be easily supplied into the object to be crushed supply unit.

It is a front view which shows the crushing apparatus 20 which concerns on one embodiment of this invention. It is a left view of the crushing apparatus 20 shown in FIG. It is a right view of the crushing apparatus 20 shown in FIG. It is a partial expanded sectional view of the periphery of the crushing part 32 of the crushing apparatus 20 shown in FIG. It is a figure which shows the operation state of the crushing apparatus 20 shown in FIG. It is a figure which shows the relationship between the crushing apparatus 20 shown in FIG. It is the front view which shows the conventional crushing apparatus 2. FIG.

Hereinafter, the form for implementing the crushing apparatus which concerns on this invention is demonstrated concretely based on drawing.
FIGS. 1 to 6 are views referred to for explaining a crushing apparatus 20 according to an embodiment of the present invention.

  As shown in FIG. 1, the crushing device 20 according to the present embodiment includes a gantry 22, a casing 24, a crushing object storage unit 26, and a crushing object supply unit 28, and as shown in FIG. 2, The crushed material supply unit 28 is sandwiched between two rotation drive units 30 on both sides thereof. As shown in FIGS. 1 and 4, a crushing portion 32 and a pressing mechanism portion 34 are provided in the housing 24.

  The crushing portion 32 is disposed at one end portion (left end portion in FIG. 1) in the length direction in the housing 24. As shown in FIG. 4, the crushing portion 32 includes a rotating rotor 36, two fixed blades 38 fixed to the other member side in the vicinity of the peripheral portions on both sides, and a screen-type sieve member 40. Configured.

  As shown in FIG. 1, the rotating rotor 36 of the crushing section 32 has a shaft that can transmit rotation to the output shaft 42a of the speed reducer 42 that is installed on the near side in the direction perpendicular to the paper surface of the housing 24 in the figure. It is connected. The rotary rotor 36 is transmitted through the speed reducer 42 and the belt drive transmission means 46 provided between the input shaft 42 b of the speed reducer 42 and the driving motor 44. It is designed to rotate.

  Further, as shown in FIG. 4, the fixed blade 38 of the crushing portion 32 is fixed to the vicinity of the rotary rotor 36 in the casing 24, and its specific shape and material are known (for example, wello). Tex Corporation's uniaxial crusher fixed blade) can be used.

  The specific shape and material of the rotary blade (not shown) provided on the peripheral portion of the rotary rotor 36 of the crushing unit 32 are also known (for example, the rotary blade of a uniaxial crusher of Unotex Corporation). Can be used.

  The to-be-crushed object supplied from the to-be-crushed object storage unit 26 is rotated by the rotating rotor 36 of the crushing unit 32, so that the rotary blade provided in the peripheral portion of the rotating rotor 36 and the vicinity of the rotating rotor 36. And a fixed blade 38 fixed to the casing 24 of the case.

  Further, in the vicinity of the crushing portion 32 below the rotary rotor 36, a screen-type sieve formed so as to be curved along the shape of the peripheral portion of the rotary rotor 36 and formed with a large number of small holes (sieve holes). The member 40 is disposed so as to have a gap slightly larger than the diameter of each of the small holes of the screen-type sieve member 40 between the member 40 and the shape of the peripheral portion of the rotary rotor 36.

  When the object to be crushed is crushed by the crushing part 32 and crushed into a crushed object whose size is smaller than the diameter of the small hole of the screen type sieve member 40, it passes through the small hole of the screen type sieve member 40 and below it. By being discharged to the side and discharged onto a conveyor or the like (not shown), it is transported to another place.

  The crushed material that could not pass through the small holes of the screen type sieve member 40 is involved in the rotating operation of the rotary rotor 36 until the crushed material is crushed smaller than the diameter of the small holes of the screen type sieve member 40. It circulates along the peripheral part of 36, and it is bitten between the rotary blade provided in the peripheral part of the rotary rotor 36, and the fixed blade 38 fixed to the housing | casing 24, and comes to continue being crushed. ing.

  As shown in FIGS. 1 and 4, the pressing mechanism portion 34 in the housing 24 includes a pressing block 48 and a hydraulic cylinder 50 that moves the pressing block 48 in the horizontal direction. The pressing mechanism unit 34 presses a crushing object (not shown) supplied and placed from the crushing object storage unit 26 between the pressing block 48 and the rotating rotor 36 of the crushing unit 32 to the rotating rotor 36 side. Operates as follows.

  The to-be-crushed object accommodating part 26 is being fixed on the upper surface of the housing | casing 24 in which the crushing part 32 is contained. The crushed object accommodating portion 26 is open without a ceiling on the upper side and is opened without a wall on the right side in FIGS. 1 and 4, so the crushed object accommodating portion 26 is looked down from above. Are arranged in a U-shape of Katakana.

  That is, as shown in FIGS. 2 and 3, the crushed object accommodating portion 26 is a pair of side wall members 26 a arranged so as to face each other in the width direction of the casing 24 (left and right direction in FIGS. 2 and 3). 26b, and as shown in FIGS. 1 and 4, the casing 24 is disposed at a position near the crushing portion 32 in the length direction (the left-right direction in the figure) and is passed between the pair of side walls 26a, 26b. In addition, the wall member 26 c having the same thickness is provided, and the side walls 26 a and 26 b and the wall member 26 c are formed in a U shape on the upper surface of the housing 24.

  As shown in FIG. 4, the object to be crushed (not shown) accommodated in the object to be crushed 26 is accommodated in the area surrounded by the object to be crushed 26 on the upper surface of the case 24. An opening 24 a for supplying the space between the crushing portion 32 and the pressing mechanism portion 34 is formed.

  Next, as shown in FIGS. 1 to 3, one end portion of the crushed object supply unit 28 is fitted between the side walls 26 a and 26 b of the crushed object storage unit 26 on the opposite side of the side wall 26 c. The to-be-crushed object supply unit 28 is formed to have a length in a direction parallel to the length direction of the casing 24 (the left-right direction in FIG. 1). As shown in FIG. 3, the crushed object supply unit 28 rises from both sides of the placement plate 52 (bottom plate portion) that is horizontally arranged and is opposed to each other. Fall prevention walls 54a and 54b (wall plate portions).

  As shown in FIGS. 2 and 3, the mounting plate 52 and the fall prevention walls 54 a and 54 b are arranged so as to be formed in a substantially U shape as a whole. The mounting plate 52 and the fall prevention walls 54a and 54b are reinforced by fixing a frame 56 using a square pipe material to each outer peripheral surface by welding or the like.

  The upper surface (the bottom surface in the crushed object supply unit 28) of the mounting plate 52 in the crushed object supply unit 28 serves as a mounting surface for mounting an unillustrated crushed object. The mounting surface of the mounting plate 52 is arranged at a lower height than the upper end of the object to be crushed 26 when the object to be crushed supply unit 28 is laid down horizontally. . Further, the fall prevention walls 54a and 54b prevent the object to be crushed placed on the placement surface of the placement plate 52 from rolling down outward in the width direction.

  Moreover, as shown in FIG. 1, the to-be-crushed object supply part 28 is provided with the shaft member 58 in the lower corner part of the one end part by the side of the crushing part 32 in the length direction. As shown in FIG. 2, the shaft member 58 penetrates the frame 56 of the crushed object supply unit 28 in the left-right direction in the figure, and both end portions thereof protrude to both outer sides of the frame 56. The frame 56 is integrally fixed.

  The shaft member 58 of the to-be-crushed object supply unit 28 passes through each of the pair of side walls 26a and 26b in the to-be-crushed object storage unit 26, and is a bearing member provided on each outer peripheral surface of the pair of side walls 26a and 26b. 60 (bearing unit) is rotatably supported.

  As shown in FIG. 1, the crushed object supply unit 28 is rotated by a rotation drive unit 30 around the rotation axis of the shaft member 58. As shown in FIG. 2, the rotation drive unit 30 is arranged on each outer side in the width direction of the object to be crushed 26. Each of the rotational drive units 30 includes a lever member 62 and a hydraulic cylinder 64 as shown in FIGS. 1 and 2.

  Since one end of each lever member 62 of the two sets of rotation drive units 30 is fixed to each other of both end portions of the shaft member 58 so as not to rotate relative to each other, each of the lever members 62 is fixed to this shaft member. As shown in FIGS. 1 and 5, the hydraulic cylinder 64 is rotated approximately 90 degrees around the axis of the shaft member 58, as shown in FIGS. Thereby, the to-be-crushed object supply part 28 rotates about 90 degree | times interlocking with the rotation operation of the lever member 62. As shown in FIG.

  The object to be crushed 28 may be rotated slowly and continuously at the other end from the state where it is laid horizontally, or, as shown in FIG. 5, from the predetermined angle α1 upward. Like α4 (this number may be any number), the rotation and stop may be repeated step by step, and the rotation may be approximately 90 degrees in total.

  As shown in FIG. 5, when the object supply unit 28 undergoes such a rotation operation and the length direction thereof is set to a substantially vertical direction, the mounting plate 52 is connected to the object to be crushed. Together with the side walls 26a, 26b, and 26c of the accommodating portion 26, a cylindrical portion is formed so as to surround the internal space of the crushed object accommodating portion 26.

  And the to-be-crushed object supply part 28 supplies the to-be-crushed object which was mounted on the mounting board 52 gradually in the to-be-crushed object accommodating part 26, rotating in this way. .

  According to the crushing apparatus 20 according to the present embodiment, as shown in FIG. 6, the crushing object supply unit 28 is placed on the mounting plate 52 of the crushing object supply unit 28 in a state where the crushing object supply unit 28 is laid horizontally. Further, from the end side opposite to the object to be crushed object 26, a long object C to be crushed such as a horizontal column is moved horizontally in the length direction of the object to be crushed object 28. Since it can be placed, a long object to be crushed can be easily supplied into the object to be crushed portion 26.

  Then, while rotating the object to be crushed 28 (see FIG. 5), the long object to be crushed is gradually brought close to a substantially vertical posture and is supplied into the object to be crushed object 26. The tip of the long crushed object can be reliably crushed without shifting from a position where the tip of the crushing part 32 can be engaged between the rotary blade of the rotary rotor 36 and the fixed blade 38. .

  And once crushing starts, since the front-end | tip part of the to-be-crushed object becomes easy to bite between a rotary blade and the fixed blade 38, this state is also during rotation of the to-be-crushed object supply part 28. Since it can be continued, the crushing apparatus 20 can exhibit an effective crushing function for a long object to be crushed.

  In addition, when supplying a long object to be crushed into the object to be crushed object 26, the object to be crushed is raised in a substantially vertical posture in advance, or from the upper end of the object to be crushed object 26. Since it does not have to be lifted high, a long object to be crushed can be easily supplied in a substantially vertical posture in the object to be crushed container 26.

  In addition, by providing the fall prevention walls 54 a and 54 b on both sides of the mounting surface of the mounting plate 52 in the shredded material supply unit 28, the shredded material is moved outwardly from the mounting surface of the mounting plate 52. Rolling down can be prevented.

  In the crushing apparatus 20 according to the above-described embodiment, the length of the crushing object supply unit 28 in which a long crushing object C such as a column or a beam whose horizontal direction is horizontal is laid horizontally. Although the case where it is moved in the horizontal direction (horizontal direction) and placed on the placement surface of the placement plate 52 has been described, a large amount of the object to be crushed C is grasped at once by an arm of a hydraulic excavator or the like. The object supply unit 28 may be dropped and placed on the placement surface of the placement plate 52.

  Moreover, although the case where the other end part of the to-be-crushed object supply part 28 was rotated only upwards was demonstrated, it not only rotates only upwards, but returns to the downward direction in the middle of rotating upwards. Thus, it may be configured to be able to be rotated upward again. Such an operation may be repeated any number of times.

  When the object supply unit 28 of the crushing device 20 can do this, the object to be crushed can be obtained while the other end of the object supply unit 28 is gradually rotated upward. When the state in which the objects to be crushed C do not slide down toward the inside of the object to be crushed object 26 below occurs in the object to be crushed object 28 which is in a slanting manner, By performing a proper operation, it is possible to eliminate the state in which the object to be crushed C is not slid down in the object to be crushed object supply unit 28 by breaking the smashed state of the objects to be crushed C.

  Moreover, in the crushing apparatus 20 according to the above embodiment, a case has been described in which the fall prevention walls 54a and 54b of the crushed object supply unit 28 are not provided with an inclined plate part whose opening side extends outward. As long as there is no hindrance to the rotation of the crushing object supply unit 28 and no hindrance occurs in forming the cylindrical space with the crushing object storage unit 26, the opening sides of the fall prevention walls 54a and 54b An inclined plate part as described above may be provided.

  By configuring in this way, even if a large amount of a long object to be crushed C is dropped from above the object to be crushed by the arm of a hydraulic excavator or the like, the object to be crushed is outside the object to be crushed object 28. The object C can be reliably placed on the placement surface of the placement plate 52 without spilling.

  Moreover, in the crushing apparatus 20 according to the above-described embodiment, a case where a total of two fixed blades 38 constituting a part of the crushing portion 32 is provided in two members has been described. One member may be provided in one member, or a total of three or more members may be provided in three or more members.

  In the crushing device 20 according to the above embodiment, the rotation drive unit 30 for rotating the object supply unit 28 is provided. However, by providing a mechanism different from the rotation drive unit 30. The to-be-crushed object supply part 28 may turn.

  Moreover, in the said embodiment, although the case where this invention was applied with respect to the crushing apparatus 20 as a uniaxial crushing apparatus provided with the one rotation rotor 36 in the crushing part 32 was demonstrated, this invention is uniaxial. The present invention is not limited to the crushing device, and can be applied to other types of crushing devices including a plurality of rotating rotors 36.

DESCRIPTION OF SYMBOLS 2 Crushing device 4 Crushing object accommodating part 6 Case 8 Crushing part 10 Rotating rotor 12 Fixed blade 14 Screen type sieve member 20 Crushing device 22 Mount 24 Case 26 Crushing object accommodating part 26a, 26b, 26c Side wall 28 Crushing object Supply part 30 Rotation drive part 32 Crushing part 34 Pushing mechanism part 36 Rotating rotor 38 Fixed blade 40 Screen type sieve member 42 Reduction gear 42a Output shaft 42b Input shaft 44 Driving motor 46 Belt hooking transmission means 48 Pushing block 50 Hydraulic cylinder 52 Mounting plate 54a, 54b Fall prevention wall 56 Frame 58 Shaft member 60 Bearing member 62 Lever member 64 Hydraulic cylinder

Claims (6)

A crushing section for crushing the material to be crushed;
Arranged just above the crushing part, the part directly above itself is opened, and the object to be crushed accommodates the object to be crushed therein,
One end communicates with the object to be crushed and is driven so that the object to be crushed placed in the inside moves in the length direction of the object and supplies the object to be crushed to the object to be crushed To be crushed object supply unit,
A time for driving the crushed object supply unit so that one end of the crushed object supply unit communicates with the crushed object storage unit and the other end of the crushed object supply unit rotates. A dynamic drive unit,
During the crushing operation of the crushing unit, the other end can be gradually rotated upward from the state in which the crushing object supply unit is laid horizontally.   During the crushing operation of the crushing part, while rotating the other end part gradually from the state in which the crushed object supply part is laid down horizontally, it is turned back so as to return downward. The crushing apparatus according to claim 1, wherein the crushing apparatus can be rotated upward again. The crushing part is
A rotary blade that is provided around the rotary rotor and rotates integrally;
The crushing device according to claim 1, further comprising: a fixed blade fixed to the other member side in the vicinity of the peripheral portion of the rotary rotor.   The crushing apparatus according to claim 2, wherein a sieving member is provided below the rotating rotor of the crushing unit, and a sieving member is provided for sieving the crushed material finely crushed by the crushing unit. .   The crushing apparatus according to claim 1, wherein the object to be crushed includes a bottom plate portion having a bottom surface and a pair of wall plate portions that rise from both side portions of the bottom plate portion and face each other.   When the other end of the object to be crushed is rotated to the maximum, the length direction of the object to be crushed substantially coincides with the vertical direction, and the one end of the object to be crushed is at the one end. The pair of wall plate portions are arranged so as to enter the inside of the object to be crushed and to form a cylindrical space between the object supply part to be crushed and the object to be crushed. The crushing apparatus according to claim 5.

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