JP3602121B2 - Crusher - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pulverizing device for pulverizing a metal or non-metal part or the like.
[0002]
[Prior art]
In the conventional apparatus, two rotary crushing rotors provided with crushing blades on the outer peripheral portion are arranged in a state where rotations are given in opposite directions to each other at predetermined intervals, and with respect to the crushing blades of the crushing rotor, The object to be crushed is pressed from a direction substantially perpendicular to the rotation axis of the crushing rotor or inserted between the two crushing rotors.
[0003]
[Patent Document 1]
JP-A-5-146699
[0004]
[Problems to be solved by the invention]
In the above-mentioned conventional apparatus, since the crushed object is pressed against the crushing blade from the above-described direction, if the pressing force on the crushing blade is not sufficiently applied, the crushing blade becomes difficult to bite into the crushed object, If the pressing force is insufficient, a complete crushing function will not be achieved. In addition, when the material to be crushed is put between the two crushing rotors and the crushed material is crushed so as to bite into the crushed material, the load acting on both the crushing rotors and the bearings of the rotating shaft thereof becomes extremely high, and the equipment cost becomes high. Problem.
[0005]
The present invention has been made in view of such circumstances, and by changing the manner in which a crushing blade interferes with a crushed object, a crushed object having characteristics that cannot be reduced in volume conventionally, for example, various parts are combined. It is an object of the present invention to provide a pulverizing device applicable to an electric motor, a compressor, and the like, which have been manufactured.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the crushing apparatus of the present invention is arranged in a state where two rotary crushing rotors provided with crushing blades on the outer periphery are provided with rotations in opposite directions at predetermined intervals, A crushing device for crushing an object to be crushed between both crushing rotors, wherein the both crushing rotors are expanded so that a space between rotors formed between outer peripheral portions of both crushing rotors is increased in one direction. It is arranged in a state, a pulverization space portion of the object to be pulverized is formed on the non-meshed side of the inter-rotor space, and the pulverization space portion is an input opening of the pulverization object on the side where the inter-rotor space is set widely. Has a discharge opening for crushed pieces on the side where the inter-rotor space is set to be narrower on the side opposite to the input opening, and is disposed at a position facing both crushing rotors with the crushing space portion interposed therebetween. The object to be crushed comes out of the crushing space by rotation. A restricting member for restraining the, and summarized in that a pushing means for pushing the grinding space the object to be crushed that is charged from the input opening is provided.
[0007]
That is, the crushing device of the present invention is arranged such that the two crushing rotors are spread so that a space between the rotors formed between the outer peripheral portions of the two crushing rotors increases in one direction. A crushing space portion of the material to be crushed is formed on the non-meshed side of the space, and the crushing space portion is provided on the side opposite to the charging opening of the crushing material on the side where the inter-rotor space is set widely. The space between the rotors has a discharge opening for crushed pieces on the side where the crushing space is set to be narrow, and is disposed at a position opposed to both crushing rotors with the crushing space portion interposed therebetween. There is provided a regulating member for regulating the exit from the section, and pushing means for pushing the material to be crushed introduced from the introduction opening into the crushing space.
[0008]
As described above, the pulverizing space formed on the non-meshed side of the inter-rotor space is a charging opening having a large opening on the side where the material to be pulverized is charged, and a small opening on the side where the pulverizing pieces are discharged. It is a discharge opening in an open state. Then, the material to be ground is forcibly pushed into the grinding space having such a shape, and the material to be ground is strongly ground by the grinding blade in the grinding space on the non-meshed side. In the transitional period of the pulverization, a force in the pulverizing space to remove the pulverized material from the pulverizing space acts on the pulverized material from the pulverizing blade. Since the crushing blade is in a state in which the crushing blade cannot exit the crushing object, the crushing blade surely acts on the object to be crushed. In other words, while the retracting movement of the object to be crushed is prohibited by the restricting member, the crushing blade can be reliably operated on the object to be crushed, and the object to be crushed can be efficiently crushed.
[0009]
In particular, since the material to be crushed is introduced into the above-mentioned crushing space formed in the longitudinal direction of the crushing rotor, the crushed material is crushed from the three positions of the crushing blades and the regulating members of both crushing rotors at the time of the introduction. The grinding space is subjected to the operation and the regulation function, and further, since the crushing space has a shape in which the cross-sectional area of the crushing space narrows as the crushed material is pushed in, the crushing space is given to the crushed material with the pushing. The breaking force is increased and a stronger crushing force is obtained. That is, the object to be crushed is pushed into a crushing space such as a tapered space, and is subjected to forced crushing by the crushing blade while being regulated by the regulating member. Therefore, a reliable pulverizing function can be obtained, and the pushing force of the pushing means can be a small force, and high operation reliability can be obtained. Further, since the pulverizing operation is performed on the non-meshed side, the mechanical load acting on both the pulverizing rotors can be reduced, which is effective for simplifying the equipment structure and reducing equipment costs. The present invention can be applied not only to the conventional object to be crushed but also to the object to be crushed which cannot be reduced in volume conventionally, for example, an electric motor or a compressor formed by combining various parts.
[0010]
In the crushing device of the present invention, when the pushing means pushes the material to be crushed from the input opening side toward the discharge opening, the cross-sectional area of the crushing space portion as the material to be crushed is pushed in. Is reduced, the breaking force applied to the object to be crushed with the pushing is increased, and a stronger crushing force is obtained. Therefore, as the object to be crushed is pushed in, the crushing proceeds more reliably. By such a pulverizing operation, the material to be pulverized is in a small volume state without being bulky, which is suitable for transportation, resource separation, recycling, and the like. Further, in the case of a casting material, remelting or the like is easily performed.
[0011]
In the pulverizing device of the present invention, when an insertion space for the object to be ground is provided between the charging opening and the pushing means, by inserting the object to be ground into the insertion space, the object to be ground is immediately Since the material to be crushed is put into the insertion space since it is put into the crushing space, a reliable crushing operation in the crushing space can be obtained thereafter.
[0012]
In the crushing device of the present invention, the pushing means is coupled to the forward / backward driving means, the most advanced position of the forward / backward driving means is a position where at least the pushing means enters the crushing space portion, and the last retracted position is the insertion space. In this position, the object to be crushed is forcibly pushed to the position where it is completely crushed by the pushing means, so that a reliable crushing operation can be obtained. And the last retreat position of the pushing means is the position where the insertion space is formed, and the insertion space for the object to be crushed is secured. Further, by repeating the reciprocating operation by the reciprocating drive means, a cycle of charging, crushing, discharging of crushed pieces, and forming an insertion space of the crushed object is executed, so that a large number of crushed objects can be processed in a short time. it can.
[0013]
In the crushing device of the present invention, when a protection member for preventing the scattering of the crushed pieces is arranged at least in the vicinity of the discharge opening, the protection member prevents the crushed pieces easily scattered near the discharge opening. The crusher can be operated with high safety.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail.
[0015]
1 to 5 show an embodiment of the apparatus of the present invention. In this apparatus, crushing blades 3 and 4 are provided on outer peripheral portions of two crushing rotors 1 and 2 having a circular cross section, and the crushing rotors 1 and 2 rotate in directions opposite to each other. An inter-rotor space 5 is formed between the outer peripheral portions of the two crushing rotors 1 and 2 so as to be widened in one direction. In order to obtain such an expanded inter-rotor space 5, the rotating shafts 7, 8 of the both crushing rotors 1, 2 are arranged in an inclined posture.
[0016]
As shown in FIG. 3, the rotation direction of the crushing rotor 1 is counterclockwise, and the rotation direction of the crushing rotor 2 is clockwise. In this case, the right side of the connecting line 6 connecting the centers of both rotating shafts 7 and 8 is used. Is the non-biting side, and the left side is the biting side. The inter-rotor space 5 on the non-meshed side is a crushing space portion 10. FIG. 2 is a perspective view showing the spatial shape of the crushing space 10 formed as described above. The side where the inter-rotor space 5 is set wide is the input opening 11 of the object 9 to be crushed, and the side where the inter-rotor space 5 is set narrow is the discharge opening 12 of the crushed pieces of the object 9 to be crushed. The arrow line A shown in the figure indicates the direction in which the object to be crushed 9 is charged.
[0017]
Note that the opening shapes of the input opening 11 and the discharge opening 12 are determined based on the axial length of the two crushing rotors 1 and 2, the opening angle of the inter-rotor space 5, and the like. Due to the characteristics of the crushing device, the openings 11 and 12 are respectively a space portion into which the material 9 to be crushed is put or a space portion from which crushed pieces are discharged. Various objects such as metal or non-metal parts can be used as the object 9 to be crushed. Here, a mechanical product made by combining various parts such as an electric motor or a compressor is used. .
[0018]
The cutting edges of the crushing blades 3 and 4 have a cutting effect on the object 9 to be crushed introduced into the crushing space 10 on the non-meshed side. However, the object 9 to be crushed on the non-biting side tends to be discharged from the crushing space portion 10 by being caught by the crushing blades 3 and 4. Is provided. The restricting member 13 is formed of a thick plate member having high strength and rigidity, and has a mode in which the crushing space 10 is sandwiched between the crushing rotors 1 and 2 and the restricting member 13. Accordingly, the object 9 to be crushed, which is going to exit the crushing space 10 by the rotation of the crushing rotors 1 and 2, is pressed against the regulating surface 14 of the regulating member 13, so that the crushing blades 3 and 4 are in the regulated state. The cutting action reliably works on the object 9, and the crushing operation is started.
[0019]
A pushing means is provided for pushing the object 9 into the grinding space 10. The pushing means is constituted by a long pushing member 16 which moves forward and backward. The cross-sectional shape of the pushing member 16 is substantially similar to the cross-sectional shape of the crushing space portion 10 shown in FIG. 2 or is not shown, but enters the crushing space portion 10 to remove the material 9 to be crushed. 10, for example, the shape of a rectangular thick plate member, and the outer shape of the member 16 is formed by concave arcuate surfaces 17, 18 conforming to the shapes of the outer peripheral portions of both crushing rotors 1, 2 and flat tops. It is formed by a surface 19. The cross-sectional area of the pushing member 16 having the above-described shape is set smaller than the cross-sectional area of the crushing space 10 so that the object 9 can enter the crushing space 10 while being pushed into the crushing space 10. Has become.
[0020]
The pushing member 16 is configured to move forward and backward by a hydraulic cylinder 28 serving as advance / retreat driving means fixed to the stationary member 26, and a piston rod 29 of the hydraulic cylinder 28 is connected to the pushing member 16. Further, the regulating member 13 is firmly attached to the stationary member 26 (see FIG. 8). The longitudinal direction of the pushing member 16 matches the direction from the input opening 11 to the discharge opening 12. The longitudinal direction coincides with the direction in which the hydraulic cylinder 28 advances and retreats. The most advanced position of the pushing member 16 is a position where the pushing member 16 has entered the crushing space portion 10 and discharged the object 9 to be crushed, and the most retreat position of the member 16 is a position where the member 16 is in the input opening 11. It is a position away from When the pushing member 16 is stopped at the last retreat position, an insertion space 20 for the object 9 to be crushed is formed between the input opening 11 and the pushing member 16. In the illustrated example, only the pushing member 16 moves forward and backward. However, the pushing member 16 and the regulating member 13 may move forward and backward integrally. The forward / backward drive means is not limited to the hydraulic cylinder 28, and may be a crank mechanism of a type in which a forward / backward operation is performed by a crank arm pivotally mounted on a rotary flywheel.
[0021]
Reference numeral 21 shown in FIGS. 4 and 5 is a protection member for preventing the crushed pieces from scattering. Since scattered pieces often fly out of the discharge opening 12, they are arranged at least near the discharge opening 12. The protection member 21 is inserted into the biting side of the two crushing rotors 1 and 2 so as not to contact the two crushing rotors 1 and 2, and its cross-sectional shape is substantially the same as the cross-sectional shape of the pushing member 16. That is, the outer shape is constituted by the arcuate surfaces 22 and 23 along the outer peripheral surfaces of the two grinding rotors 1 and 2, the top surface 24, and the mounting surface 25, and the mounting surface 25 is firmly fixed to the stationary member 26. Thus, the protective member 21 prevents the crushed pieces that are likely to be generated in the vicinity of the discharge opening 12 from scattering, and the crusher can be operated with high safety.
[0022]
The operation of the crusher will be described with reference to FIGS.
[0023]
FIG. 4A shows a state in which the object 9 to be crushed inserted into the insertion space 20 has entered the crushing space 10. Here, when the material 9 to be crushed is pushed below the crushing space portion 10 by the pushing member 16, as shown in FIG. Then, the crushed pieces 27 crushed to a predetermined fineness are discharged from the discharge opening 12. Further, as the pushing proceeds, as shown in (C), the object 9 is pulverized and discharged from the discharge opening 12. Thereafter, the state returns to the state of FIG. When the pushing member 16 is pushed in, the material 9 in the grinding space 10 is located between the grinding rotors 1 and 2 and the regulating member 13, and the material 9 is removed from the grinding space 10. Attempts to leave are suppressed.
[0024]
FIGS. 5A, 5B, and 5C show a state in which the pushing member 16 repeats the forward / backward operation.
[0025]
The pulverizing space portion 10 formed on the non-meshed side of the inter-rotor space 5 has a large opening state on the side into which the material 9 to be pulverized is input, and the other side on which the pulverizing pieces 27 are discharged. The discharge opening 12 is in a small open state. The crushed object 9 is forcibly pushed into the crushing space 10 having such a shape, and the crushed object 9 is strongly crushed by the crushing blades 3 and 4 in the crushing space 10 on the non-biting side. Is done. In the transitional period of the pulverization, the force in the pulverizing space 10 in the direction of removing the object 9 from the pulverizing space 10 acts on the object 9 from the pulverizing blades 3 and 4. The crushing object 9 is in a state in which the crushed object 9 cannot exit the crushing space portion 10 by the regulating surface 14 of the crushing blade 3, so that the crushing blades 3 and 4 reliably act on the crushed object 9 to perform crushing. In other words, in a state where the retreat movement of the crushed object 9 is prohibited by the regulating member 13, the crushing blades 3 and 4 are allowed to reliably act on the crushed object 9, and the crushed object 9 can be efficiently crushed.
[0026]
In particular, since the material 9 to be crushed is put into the crushing space 10 formed in the longitudinal direction of the crushing rotors 1 and 2, the crushed material 9 at this point in time is crushed by the crushing blades 3 of both crushing rotors 1 and 2. , 4 and the regulating surface 14 are subjected to a pulverizing operation and a regulating function. Further, the sectional area of the pulverizing space 10 becomes narrower as the object 9 is pushed in. Therefore, the destructive force applied to the object to be crushed 9 with the pushing is increased, and a stronger crushing force is obtained. That is, the crushed object 9 is pushed into the crushing space portion 10 such as a tapered space, where the crushed material 9 is forcibly crushed by the crushing blades 3 and 4 while being regulated by the regulating member 13. Therefore, a reliable pulverizing function can be obtained, and the pressing force of the pressing member 16 can be a small force, and high operation reliability can be obtained.
[0027]
Since the crushed object 9 is pushed from the input opening 11 side toward the discharge opening 12, the cross-sectional area of the crushing space 10 decreases as the crushed object 9 is pushed in. The breaking force applied to the object 9 is increased, and a stronger crushing force is obtained. Therefore, the crushing proceeds more reliably as the crushed object 9 is pushed. By such a pulverizing operation, the material to be pulverized 9 is in a small volume state that is not bulky, which is suitable for transportation, separation of resources, recycling, and the like. Further, in the case of a casting material, remelting or the like is easily performed.
[0028]
The above-described crushing operation is an example, and various crushing phenomena occur depending on the type of the material 9 to be crushed. For example, in the case of the crushable object 9 such as glass, the advance length of the pushing member 16 is completely crushed in the vicinity of the middle of the crushing space portion 10, so that the stroke of the hydraulic cylinder 28 is set short. You may. On the other hand, in the case of the object 9 to be crushed such as a steel plate which is hard to be broken or various parts are combined, the stroke of the hydraulic cylinder 28 is set so that the pushing member 16 projects outside the discharge opening 12 of the crushing space 10. Is set. As shown in FIGS. 1, 4 (C), 5 (C), 6 (C), and 7, the most advanced position until the pushing member 16 projects outside the discharge opening 12. The stroke of the hydraulic cylinder 28 is set so that By setting the pushing member 16 at the most advanced position, the crushing operation is ensured even at the discharge opening 12 where the inter-rotor space 5 is set to be narrow, even with the flexible crushed object 9 that is difficult to crack. Even if the object 9 is difficult to pulverize, reliable pulverization becomes possible.
[0029]
When the object 9 is inserted into the insertion space 20, the object 9 is immediately inserted into the crushing space 10 by inserting the object 9 into the insertion space 20. A reliable crushing operation at 10 is obtained.
[0030]
FIG. 6 shows a second embodiment of the crushing device of the present invention.
[0031]
The embodiment shown in FIGS. 4 and 5 is of an arrangement type in which the pushing member 16 advances and retreats in the vertical direction, and the crushed pieces 27 are discharged almost directly below. However, the embodiment shown in FIG. , 4 and 5 are arranged substantially horizontally. The other parts are the same as those of the above embodiment, and the same parts are denoted by the same reference numerals.
[0032]
By the arrangement of the devices in the substantially horizontal direction as described above, interference with peripheral devices and the like can be avoided, and a good arrangement of the crushing device is realized. Further, in the case of forming a processing line for the object to be crushed along the floor of the factory, since the crushing device is arranged in a substantially horizontal direction, it is easy to cooperate with processes before and after the crushing process. . Other than that, the same operation and effect as those of the above-described embodiment can be obtained.
[0033]
7 and 8 show a third embodiment of the pulverizing device of the present invention.
[0034]
This embodiment shows a structure in the case where the above-described pulverizing device is specifically completed. The advance / retreat driving means is constituted by the hydraulic cylinder 28 fixed to the stationary member 26 as described above, and the piston rod 29 is connected to the pushing member 16. The stroke direction of the hydraulic cylinder 28 is a direction substantially along the longitudinal direction of the inter-rotor space 5.
[0035]
The casing 36 fixed to the stationary member 26 is provided with the two grinding rotors 1 and 2 and a gear-type driving mechanism 37 for rotating them. The drive mechanism 37 includes an electric motor 38, a bevel gear 39 driven by the motor 38, a bevel gear 40 attached to the rotating shaft 8 and engaged with the bevel gear 39, and a bevel gear 40 attached to the rotating shaft 7. This is a normal mechanism composed of meshing bevel gears 41 and the like. With the output of the electric motor 38, the two grinding rotors 1 and 2 rotate in opposite directions. The other parts are the same as those in the above embodiments, and the same parts are denoted by the same reference numerals.
[0036]
With the above configuration, strong support of the regulating member 13 and the pushing member 16 and smooth movement of the member can be obtained. In addition, the drive mechanism 37 causes both the grinding rotors 1 and 2 to rotate normally. Further, the most advanced position of the hydraulic cylinder 28 is a position where the pushing member 16 enters the pulverizing space 10, and the most retreat position is a position where the insertion space 20 is formed. Therefore, the object 9 is forcibly pushed to the position where it is completely crushed by the pushing member 16, so that a reliable crushing operation can be obtained. The last retreat position of the pushing member 16 is a position where the insertion space 20 is formed, and the insertion space 20 for the object 9 to be crushed is secured. Further, by repeating the reciprocating operation of the hydraulic cylinder 28, a cycle of charging, crushing, discharging the crushed pieces 27, and forming the insertion space 20 of the crushed material 9 is executed, and a large number of crushed materials 9 can be formed in a short time. Can be processed. Except for the above, the same operation and effect as those of the above embodiments are obtained.
[0037]
FIG. 9 shows a fourth embodiment of the pulverizing device of the present invention.
[0038]
In the above-described embodiment, the rotating shafts 7 and 8 of both the crushing rotors 1 and 2 are arranged so as to be expanded in order to widen the inter-rotor space 5 in one direction. This is the case where the outer peripheral portions of the crushing rotors 1 and 2 are tapered. Therefore, in this example, the rotating shafts 7 and 8 are parallel, and the structure of the drive units of the crushing rotors 1 and 2 can be simplified. In the case of a taper type, the rotation shafts 7 and 8 may be provided with an expansion angle. The other parts are the same as those in the above embodiments, and the same parts are denoted by the same reference numerals. Further, in terms of the function and effect, the same function and effect as those of the above-described embodiments can be obtained.
[0039]
FIG. 10 shows a fifth embodiment of the pulverizing apparatus of the present invention.
[0040]
In this embodiment, a moving member 30 that moves in a linear direction is employed instead of the hydraulic cylinder 28 as described above. The pushing member 16 and the regulating member 13 are attached to the moving member 30 in an integrated state. The crushing rotors 1 and 2, the casing 36, the drive mechanism 37, the electric motor 38, the bevel gears 39, 40, 41, etc., on the side receiving the advance movement of the pushing member 16 are the same as those shown in FIGS. is there.
[0041]
The moving member 30 may be moved in various forms, such as linearly moving forward and backward, and linearly moving in one direction. In the illustrated example, the linear one-way moving is performed by an endless driving method. . That is, a number of moving members 30 are connected in a chain shape via a coupling shaft 31 to form an annular body 32, and the annular body 32 is stretched over sprocket-shaped drive wheels 33, 33 arranged on the left and right. . Although not shown, the drive wheels 33 are driven by an electric motor capable of speed control and stop / start control. When the object 9 is crushed, a strong force acts on the regulating member 13 in the downward direction in FIG. In order to receive this force, the moving member 30 slides on the support piece 34 fixed to the stationary member 26. Note that a curved surface 35 is formed at an end of the support piece 34, so that the moving member 30 can pass over the support piece 34 smoothly. The other parts are the same as those in the above embodiments, and the same parts are denoted by the same reference numerals.
[0042]
With the above-described configuration, the drive control of the drive wheels 33, 33 causes the moving member 30 to come to a stop near the waiting crushing rotors 1, 2, and secure the insertion space 20. Next, when the object 9 to be crushed is put into the insertion space 20 and the moving member 30 is moved again, the pushing member 16 performs the pushing function as described above, and the crushing proceeds. Since the pushing member 16 functions by the annular body 32 as described above, the linear movement of the pushing member 16 in one direction is ensured. Therefore, since the pushing member 16 passes from the input opening 11 to the outside of the discharge opening 12 of the pulverizing space 10, the object 9 to be pulverized is reliably pulverized.
[0043]
Further, the use of the annular body 32 enables pulverization at a plurality of locations. That is, the plurality of moving members 30 are arranged in the middle of the annular body 32, and the pushing members 16 and the regulating members 13 are attached to the moving members 30, respectively. The rotors 1, 2 and the like are arranged. When the annular body 32 is stopped and a plurality of insertion spaces 20 are formed between the pushing members 16 and the crushing rotors 1 and 2, the objects 9 to be crushed are thrown into the insertion space 20 at once, and then re-moved. Crushes at a plurality of locations. Therefore, the efficiency of the pulverizing process can be improved by simple equipment modification, and the processing cost can be reduced. In addition, by providing three or four drive wheels 33 and forming an area in which the moving member 30 moves in the vertical direction, one annular body 32 is equipped with a crusher that operates in the vertical and horizontal directions. This is convenient for improving the pulverization efficiency and rationalizing the equipment layout. Except for the above, the same operation and effect as those of the above embodiments are obtained.
[0044]
By keeping the cross-sectional shape of the pushing member 16 and the spatial cross-sectional shape of the crushing space portion 10 close to each other, when the pushing member 16 enters the crushing space portion 10, the crushing space portion 10 is substantially moved by the pushing member 16. It will be in a state of being closed. Therefore, it is possible to prevent the crushed pieces 27 of the crushed object 9 from scattering in the opposite direction toward the input opening 11 side, and prevent abnormal interference with the newly input crushed object 9. .
[0045]
【The invention's effect】
As described above, according to the crushing device of the present invention, the crushing space portion formed on the non-meshed side of the inter-rotor space is a charging opening in which a side to which crushed material is charged is a large opening state, On the other hand, the side from which the crushed pieces are discharged is a discharge opening in a small open state. Then, the material to be ground is forcibly pushed into the grinding space having such a shape, and the material to be ground is strongly ground by the grinding blade in the grinding space on the non-meshed side. In the transition period of the pulverization, the force in the pulverizing space to remove the pulverized material from the pulverizing space acts on the pulverized material from the pulverizing blade. Since the crushing blade is in a state in which the crushing blade cannot exit the crushing object, the crushing blade surely acts on the object to be crushed. In other words, while the retracting movement of the crushed object is prohibited by the restricting member, the crushing blade reliably acts on the crushed object, and the crushed object can be efficiently crushed.
[0046]
In particular, since the material to be crushed is introduced into the above-mentioned crushing space formed in the longitudinal direction of the crushing rotor, the crushed material is crushed from the three positions of the crushing blades and the regulating members of both crushing rotors at the time of the introduction. The grinding space is subjected to the operation and the regulation function, and further, since the crushing space has a shape in which the cross-sectional area of the crushing space narrows as the crushed material is pushed in, the crushing space is given to the crushed material with the pushing. The breaking force is increased and a stronger crushing force is obtained. That is, the object to be crushed is pushed into a crushing space such as a tapered space, and is subjected to forced crushing by the crushing blade while being regulated by the regulating member. Therefore, a reliable pulverizing function can be obtained, and the pushing force of the pushing means can be a small force, and high operation reliability can be obtained. Further, since the pulverizing operation is performed on the non-meshed side, the mechanical load acting on both the pulverizing rotors can be reduced, which is effective for simplifying the equipment structure and reducing equipment costs. The present invention can also be applied to an object to be ground having characteristics that could not be reduced conventionally, for example, an electric motor or a compressor formed by combining various parts.
[Brief description of the drawings]
FIG. 1 is a front view showing one embodiment of a crushing device of the present invention.
FIG. 2 is a perspective view showing a shape of a crushing space.
FIG. 3 is a sectional view showing a positional relationship between both grinding rotors and a regulating member.
FIG. 4 is an operation diagram showing an operation sequence of pulverization.
FIG. 5 is an operation diagram showing a reciprocating operation of the crusher.
FIG. 6 is an operation diagram showing a second embodiment of the crushing device of the present invention.
FIG. 7 is a front view showing a third embodiment of the crushing device of the present invention.
FIG. 8 is a side view of that of FIG.
FIG. 9 is a front view showing a fourth embodiment of the crushing device of the present invention.
FIG. 10 is a side view showing a fifth embodiment of the crushing apparatus of the present invention.
[Explanation of symbols]
1,2 grinding rotor
3,4 crushing blade
5 Space between rotors
6 Coupling line
7,8 rotation axis
9 crushed material
10 Crushing space
11 Input opening
12 discharge opening
A Arrow line
13 Regulation members
14 Regulatory aspects
16 Pushing member, pushing means
17, 18 Arc surface
19 Top
20 insertion space
21 Protective member
22, 23 Arc surface
24 Top
25 Mounting surface
26 Stationary member
27 crushed pieces
28 Hydraulic cylinder
29 piston rod
30 Moving parts
31 Coupling axis
32 ring
33 drive wheels
34 Supporting piece
35 curved surface
36 Casing
37 Drive mechanism
38 Electric motor
39, 40, 41 bevel gear

Claims (5)

Two rotary grinding rotors provided with grinding blades on the outer periphery are arranged in a state where rotations are given in opposite directions at a predetermined interval, and a grinding device for grinding the material to be ground between the two grinding rotors. The two crushing rotors are arranged so as to expand so that the inter-rotor space formed between the outer peripheral portions of the two crushing rotors becomes wider in one direction. The crushing space portion of the object to be crushed is formed, and the crushing space portion is configured such that the inter-rotor space is narrow on the side opposite to the input opening of the crushing object on the side where the inter-rotor space is set wide. And a discharge opening for the crushed pieces on the set side. The crushed piece is disposed at a position opposed to both the crushing rotors with the crushing space portion interposed therebetween. Regulating member to be That the pushing means is provided to push the object to be crushed which is to the grinding space grinding apparatus according to claim. 2. The crushing device according to claim 1, wherein said pushing means pushes the material to be crushed from the input opening side toward the discharge opening. 3. The crushing device according to claim 1, wherein an insertion space for an object to be crushed is provided between the input opening and the pushing means. The pushing means is connected to the reciprocating drive means, the most advanced position of the reciprocating drive means is a position where at least the pushing means has entered the pulverizing space, and the last retreat position is a position where the insertion space is formed. 3. The crushing device according to 3. The crushing device according to any one of claims 1 to 4, wherein a protection member for preventing scattering of the crushed pieces is arranged at least near the discharge opening.

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