JP4067397B2 - 2-axis shear type crusher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for preventing a crushed material transport device of a biaxial shear type crusher from being damaged by a crushed material.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a rotary crusher, a device for preventing scattering around a crushed material and damage due to a crushed material of a crushed material transport device has been devised. For example, Patent Document 1 discloses a crushing of an impact crusher. A mobile crusher is described that is equipped with a device that prevents scattering of objects to the surroundings and damage to the belt conveyor for conveying crushed materials due to crushed materials.
[0003]
FIG. 8 is a side sectional view showing the configuration of the mobile crusher described in Patent Document 1. In FIG. 8, a tunnel cover 61 is provided in front of the discharge chute 60 of the impact crusher 50 to form a tunnel with the belt 52 of the discharge belt conveyor 51, and two front elastic plates 62, 62 are provided at the outlet. A rear elastic plate 63 is provided at the rear of the discharge chute 60. Further, two scattering prevention plates 64 and 64 and a belt protection plate 65 are detachably mounted on the upper portion of the discharge chute 60. The crushed pieces finely crushed by the impact crusher 50 are blown off by the rotation of the rotor 53, bounce off as indicated by arrows a, b, c, d, and do not scatter outside the discharge chute 60 and the tunnel cover 61. 52 is also protected.
[0004]
[Patent Document 1]
JP-A-9-141123 (page 3-4, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, when the techniques of the impact crusher anti-scattering plate and the belt protection plate as described above are applied to a biaxial shearing type crusher, the following problems occur. In other words, crushed material from the crusher may be mixed with elongated crushed material that has been discharged without being crushed, preventing the conveyor belt conveyor from being damaged by this mixed crushed material. There is a problem that you can not do. Since there is no patent document relating to prevention of damage to the belt conveyor of the biaxial shearing type crusher, the above-mentioned problem of damage to the belt conveyor of the biaxial shearing type crusher will be described below.
[0006]
FIG. 9 is a plan sectional view of a conventional biaxial shear crusher 1c, and FIG. 10 is a front sectional view thereof. 9 and 10, the case 2 has two drive shafts 3 and 4 arranged in parallel and rotatably supported by bearings 5 and 6, and gears 7 and 8 are attached to the ends of the respective one side shafts. Are engaged with each other. The drive shaft 3 is driven by a drive source (not shown), and the drive shaft 4 is rotationally driven in opposite directions to the drive shaft 3 via gears 7 and 8. A plurality of shear type cutters 10 and spacers 11 are alternately attached to the drive shafts 3 and 4 and meshed with each other to form a crushing portion 12. On the left and right inner wall surfaces of the case 2, a scraper 13 disposed between adjacent shear type cutters 10, 10 is attached. A slight gap S (for example, 5 mm) is provided between the cutting edge of the shearing cutter 10 on one shaft side and the outer peripheral surface of the opposing spacer 11 on the other shaft side. In addition, a hopper 14 is provided at the upper part of the case 2, and a belt conveyor 16 as an example of the conveying means 15 is disposed below the case 2. The drive shafts 3 and 4 are rotationally driven in the arrow direction shown in FIG.
[0007]
The biaxial shearing type crusher 1c is charged with various objects to be crushed, such as washing machines, bicycles, woodwork products, tatami mats, and vinyl. These objects to be crushed are often mixed with crushed long objects such as aluminum sashes, wires, bamboo, and wood. In FIG. 10, the material to be crushed from the hopper 14 is crushed by the shearing cutter 10, and the crushed material falls from the crushing section 12 onto the belt conveyor 16. While the drive shafts 3 and 4 rotate, a gap is generated between the blade edge of the shearing cutter 10 and the spacer 11. Further, for example, in the case of a rough crushing shear cutter (not shown), a gap of a predetermined size is provided in the cutter thickness direction between adjacent shear type cutters 10 and 10. For this reason, as shown by a two-dot chain line, the long material crushed material 40 in the crushed material described above may pass through the gap without being crushed and fall from the gap. Hits the belt conveyor 16 almost straight. When the shearing cutter 10 is rotationally driven in this state, the long material crushed material 40 is sandwiched between the spacer 11 and the cutting edge of the shearing cutter 10 and pushed downward, so that the tip 41 thereof bites into the surface of the belt conveyor 15. As the belt conveyor 15 moves, there is a problem in that the belt conveyor 15 is cracked and the belt conveyor 15 is damaged.
[0008]
The present invention has been made paying attention to the above-described problems, and an object of the present invention is to provide a biaxial shearing type crusher that prevents damage to a conveying means due to a long material crushed material mixed in the crushed material.
[0009]
[Means, actions and effects for solving the problems]
In order to achieve the above object, according to a first aspect of the present invention, in a biaxial shearing type crusher, a case, two drive shafts that are rotatably supported by the case, and two drive shafts arranged in parallel are attached to the drive shaft. A crushing part for crushing the object to be crushed with a shear-type cutter, and a conveying means arranged below the case and conveying the crushed material discharged from the crushing part, between the crushing part and the conveying means A crushing material direction changing member for changing the discharge direction of the crushing material discharged from the crushing part , and the crushing material direction changing member is disposed between the two drive shafts and in the longitudinal direction of the drive shaft. Thus, it is a vertical plate-like member provided over almost the entire length of the crushing part, and the surface facing the crushing part is directed to the same side as the conveying direction of the conveying means on the side surface part of the crushing material direction changing member. It has a structure provided with inclined inclined guide member .
[0010]
According to 1st invention, the discharge direction of the crushing material discharged | emitted from a crushing part is changed by the crushing material direction change member. That is, the discharge direction of long crushed material such as wood, bamboo, aluminum sash, iron, etc. mixed in the crushed material discharged downward from the crushing part is changed to another direction by hitting the crushed material direction changing member. . Therefore, the discharge energy of the crushed long product whose direction has been changed is reduced, and even if the leading end of the crushed long product hits a conveying means such as a belt conveyor, there is little fear of damaging the tip, and durability can be improved. In addition, since the long crushed material discharged from the crushing part is contacted with the vertical plate member that is the crushed material direction changing member and the discharge direction is changed, it prevents damage to the conveying means such as the belt conveyor and is durable. Can be improved. In the case of the present invention, since the width of the vertical plate-like member is relatively small, the direction change angle of the long object is small, and the amount of reduction in the discharge energy is small. For this reason, for example, it is effective for a lightweight crushed object such as aluminum or plastic, and if it has a simple shape such as a long plate shape, the crushed object is less likely to be entangled with the crushed object direction changing member. In addition, the crushed long material discharged from the crushing portion hits the inclined guide member and is changed in direction toward the conveying direction of the conveying means such as a belt conveyor, so that the discharged energy is reduced and the long crushed material is reduced. The force with which the leading end of the sheet comes into contact with the conveying means is reduced, the conveying means can be prevented from being damaged, and the durability can be improved.
[0015]
In a second aspect based on the first aspect , the vertical plate member is detachable.
[0016]
According to the 2nd invention, when there are comparatively few materials to be entangled such as a vinyl sheet, it is possible to change the discharge direction of the light and long crushed material by using only the vertical plate member and reduce the discharge energy. When there is no material to be entangled easily or when it is very small, the direction changing member is widened at the bottom, and the direction changing angle of a relatively high-rigidity long material can be increased to greatly reduce the discharge energy. Moreover, when there are many crushed materials, such as a tatami mat and a vinyl sheet, the flow direction of a crushed material can be improved by removing a skirt-spreading direction changing member and a vertical plate member. That is, it is possible to easily work on various types of materials to be crushed in an optimum state, improve work efficiency, and reduce damage to a conveying means such as a belt conveyor.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a biaxial shear type crusher according to the present invention will be described in detail below with reference to the drawings.
[0020]
FIG. 1 is a side sectional view of a biaxial shearing crusher 1, and FIG. 2 is a front sectional view thereof. In addition, the same code | symbol is attached | subjected to the same structure as the conventional thing shown in FIG. 9, FIG. 10, description is abbreviate | omitted and only a different part is demonstrated.
1 and 2, between the crushing section 12 and the belt conveyor 16, the first implementation is carried out over the entire length of the crushing section 12 in the coaxial direction below the substantially central portion between the two drive shafts 3 and 4. The form crushed material direction changing member 20 is provided. 3 is a cross-sectional view taken along the line AA of FIG. 1 and 3, a pair of left and right brackets having female screws 22 on the left and right sides in the direction of the drive shafts 3 and 4 respectively on the lower sides of the inner wall surfaces 2a and 2a on the end sides of the drive shafts 3 and 4 of the case 2. 21 and 21 are fixed. The vertical plate-like member 23 which is the crushed material direction changing member 20 includes a vertical plate 24 having a length substantially equal to the length of the crushing portion 12 (that is, the drive shafts 3 and 4), and the vertical plate 24. There are provided mounting plates 25 and 25 respectively fixed to the lower surfaces of both ends in the longitudinal direction. The vertical plate-like member 23 is detachably fastened by inserting bolts 26 from below the mounting plates 25 and 25 and screwing into the female screws 22 of the brackets 21 and 21. A mountain shape 27 is formed on the upper surface portion of the vertical plate 24, and a plurality of female screws 28 are provided on the lower surface portion.
[0021]
Next, the operation of the vertical plate member 23 will be described. In the crushing part 12 of the biaxial shearing type crusher 1, the material to be crushed is finely crushed by the shearing cutter 10, but as described above, the crushing part 12 of the crushing part 12 is not crushed. It may be discharged from the gap. Due to the relationship between the relative position of the spacer 11 and the shearing cutter 10, the long material crushed material 40 falls from a slightly oblique direction as shown by a two-dot chain line and hits the vertical plate member 23, thereby changing the direction. Then, the tip portion 41 hits the belt conveyor 16. Thereafter, the crushed long object 40 is pushed in the longitudinal direction of the crushed long object 40 by the rotation of the shearing cutter 10, and therefore bends in the middle. At this time, the kinetic energy (hereinafter referred to as “discharge energy”) of the long object crushed material 40 applied by the shear cutter 10 is reduced by the collision of the tip portion 41 with the vertical plate-like member 23, and the tip of the crushed material 40 is dropped. Since the force with which the portion 41 pushes the surface of the belt conveyor 16 is reduced, the risk of damaging the belt conveyor 16 is reduced.
[0022]
Since the biaxial shearing crusher 1 of the present invention has the above-described configuration, damage to the belt conveyor 16 is reduced, and durability can be improved. In the case of this embodiment, since the width B of the vertical plate 24 is small, the direction change angle of the long crushed material 40 is small, and the degree to which the long crushed material 40 hits the vertical plate member 23 is small to some extent. Since the amount of reduction is small, it is effective for lightweight crushed materials such as aluminum and plastic. Further, since the shape of the vertical plate member 23 is simple, when handling a simple plate shape such as a long plate shape, there is little possibility that the crushed material is entangled with the crushed material direction changing member 20.
[0023]
FIG. 4 is a front sectional view of the biaxial shearing type crusher 1a to which the crushed material direction changing member 20a of the second embodiment is attached, and FIG. 5 is a detailed front sectional view of the crushed material direction changing member 20a. 4 and 5, a plurality of direction changing members 30 having a flared shape as viewed in the axial direction are attached to the female screws 28 formed on the lower surface portion of the vertical plate 24 of the vertical plate-like member 23 attached to the case 2. Fasten with the bolt 31. The total width W of the direction changing member 30 is set to be wider (for example, 5 times or more) than the width B of the vertical plate 24.
[0024]
Next, the effect | action of the crushed material direction change member 20a is demonstrated. In FIG. 4, due to the relationship between the relative positions of the spacer 11 and the shear type cutter 10, the long crushed material 40 falls from a slightly oblique direction as shown by a two-dot chain line and hits the direction changing member 30, thereby The tip 41 of the belt contacts the belt conveyor 16. Thereafter, the long material crushed material 16 is bent in the middle because it is pushed by the shearing cutter 10. The bending angle is larger than the angle at the time of the above-described vertical plate-like member 23 because the total width W of the skirt-spreading direction changing member 30 is wider than the width B of the vertical plate 24. Therefore, the crushed long material 40 may break or buckle, but in that case, almost no force is applied to the belt conveyor 16. Further, since the direction change member 30 that collides with the skirt-spreading direction changing member 30 is largely changed without being broken or buckled, the energy discharged from the crushed long object 40 is greatly reduced. The force pushing the surface of the belt conveyor 16 is extremely small, and the risk of damaging the belt conveyor 16 is greatly reduced.
[0025]
In the case of this embodiment, for example, it is effective for crushed long objects that are hard and relatively high in rigidity, such as iron materials and aluminum sashes.
[0026]
As described above, the vertical plate-shaped member or the hem-spreading direction changing member of the present invention is detachable. For this reason, when there are relatively few materials to be crushed such as vinyl sheets, it is possible to reduce the discharge energy of a lightweight crushed material only as a vertical plate member. When there is no material to be entangled easily, or when it is very small, it is possible to significantly reduce the discharge energy of a relatively high-rigid crushed material by attaching a direction-changing member that spreads at the bottom. In addition, when there are many materials to be crushed easily such as tatami mats and vinyl sheets, it is possible to improve the flow of the crushed material by removing the crushed material direction changing members such as the vertical plate-shaped member and the hem-spreading direction changing member. it can. In other words, the crushed object direction changing member can be easily and selectively exchanged according to the material of various materials to be crushed, and work can be performed in an optimum state. Thereby, work efficiency can be improved and the damage of a belt conveyor can also be reduced.
[0027]
FIG. 6 is a side sectional view of a biaxial shear type crusher 1b to which the crushed material direction changing member 20b of the third embodiment is attached. In FIG. 6, the crushed material direction changing member 20 b has a plurality of inclinations inclined toward the conveying direction of the belt conveyor 16 (indicated by white arrows in the drawing) on both side portions of the vertical plate 24 of the vertical plate-like member 23. A guide member 32 is provided. The long crushed object 40 collides with the inclined guide member 32 as shown by a two-dot chain line, bends in the middle by the rotational force of the shearing cutter 10, and is inclined toward the conveying direction of the belt conveyor 16. Therefore, the discharge energy of the long material crushed material 40 is reduced, and the force pushed by the tip 41 is greatly reduced, so that the belt conveyor 16 can be prevented from being damaged.
[0028]
FIG. 7 is a front sectional view of the crushed object direction changing member 20c of the fourth embodiment. In FIG. 7, a skirt-spreading direction changing member 30 is attached to the lower part of the vertical plate 24 of the crushed material direction changing member 20 b as in the third embodiment. Thereby, the long material crushed material is greatly bent in the direction of the drive shafts 3 and 4 and the direction perpendicular thereto, so that the discharge energy is greatly reduced. Therefore, a further effect can be expected in preventing the belt conveyor 16 from being damaged.
[0029]
In the above embodiment, the conveying means is described by taking a belt conveyor as an example. However, the conveying means is not limited thereto, and may be other conveying means such as a vibration feeder. Moreover, although the inclination guide member is attached to the vertical plate-like member, it may be attached to a direction changing member having a hem shape.
[0030]
As described above, according to the present invention, since the crushed material direction changing member is provided between the crushing part of the biaxial shear type crusher and the conveying means, the long material crushed material collides with this, and the discharge direction Is changed and bent, the discharge energy of the crushed long object is reduced. For this reason, damage to the conveying means can be prevented, and durability can be improved.
In addition, as the crushed material direction changing member, a vertical plate-like member having a slightly narrow width and a simple structure, a direction changing member having a wider hem, and the like can be selectively detachably attached. The above-mentioned members can be selectively attached according to the kind of material to be crushed, the material, and the degree of entanglement. Thereby, since it can crush in the state suitable for a to-be-crushed object (including the state without the said discharge direction changing member), efficient crushing can be performed.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a biaxial shear crusher according to a first embodiment.
FIG. 2 is a front sectional view of FIG.
FIG. 3 is a front sectional view of a crushed object direction changing member according to the first embodiment.
FIG. 4 is a front sectional view of a biaxial shear crusher according to a second embodiment.
FIG. 5 is a front sectional view of a crushed object direction changing member according to a second embodiment.
FIG. 6 is a side sectional view of a biaxial shear crusher according to a third embodiment.
FIG. 7 is a front sectional view of a crushed object direction changing member according to a fourth embodiment.
FIG. 8 is a side sectional view of a conventional mobile crusher.
FIG. 9 is a plan sectional view of a conventional biaxial shear type crusher.
10 is a front sectional view of FIG. 9. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1a, 1b ... Biaxial shear type crusher, 2 ... Case, 2a ... Inner wall surface, 3, 4 ... Drive shaft, 10 ... Shear type cutter, 11 ... Spacer, 12 ... Crushing part, 15 ... Conveying means, 16 ... Belt conveyor, 20, 20a, 20b, 20c ... Crushed material direction changing member, 21 ... Bracket, 22, 28 ... Female screw, 23 ... Vertical plate member, 24 ... Vertical plate, 25 ... Mounting plate, 30 ... Direction changing member 32: Inclined guide members.

Claims (2)

In the biaxial shear type crusher,
Case (2) and
Two drive shafts (3, 4) arranged in parallel and rotatably supported by the case (2);
A crushing section (12) for crushing an object to be crushed with a shear type cutter (10) attached to the drive shaft (3,4);
A conveying means (15) that is disposed below the case (2) and conveys the crushed material discharged from the crushing section (12),
Between the crushing part (12) and the conveying means (15), a crushing material direction changing member ( 20 ) for changing the discharge direction of the crushing material discharged from the crushing part (12) is provided ,
The crushed material direction changing member (20) is below between the two drive shafts (3, 4), in the longitudinal direction of the drive shaft (3,4), substantially the entire length of the crushing part (12) It is a vertical plate member (23) provided,
An inclined guide member (32) is provided on the side surface of the crushed material direction changing member (20) so that the surface facing the crushed portion (12) is inclined toward the same side as the conveying direction of the conveying means (15). A biaxial shearing type crusher characterized by that. In the biaxial shear type crusher according to claim 1 ,
The vertical plate member (23) is detachable, and is a biaxial shearing type crusher.

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