JP3842713B2 - Raw material supply equipment for rotary crusher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a raw material supply device for a rotary crusher that is optionally provided (selectively equipped) in a rotary crusher.
[0002]
[Prior art]
A raw material supply device for a rotary crusher (hereinafter also simply referred to as a raw material supply device) is provided on the upper part of a crusher hopper fixed to the upper end of the upper frame of the rotary crusher, and the inner peripheral surface of the upper frame Is a device for supplying crushing raw material (raw stone) evenly in the circumferential direction of the crushing chamber from above to the crushing chamber of a rotary crusher formed between the cone cave attached to the main shaft and the mantle attached to the main shaft is there. An example of this type of raw material supply device for a rotary crusher is disclosed in Japanese Patent Publication No. 61-56023 (Patent Document 1, title of invention: raw material uniform supply device of a rotary crusher). This will be described with reference to FIG.
[0003]
As shown in FIG. 6, the raw material supply apparatus is provided in the upper part of the crusher hopper 51 of a rotary crusher. This raw material supply apparatus includes an input chute 61, a disc 61b fitted and fixed to the middle and high portion on the outer peripheral side of the input chute 61, and a plurality of discharge chutes 62 connected to the lower end of the vertical cylindrical portion 61a below the input chute 61. The raw material supply chute 63 is vertically and horizontally supported by vertical support wheels 66 and horizontal support wheels 67 disposed at equiangular intervals on support frames 64 and 65 provided at the upper end of the crusher hopper 51. It is a thing. That is, the disc 61b is supported by three vertical support wheels 66 arranged at intervals of 120 °, and arranged at intervals of 120 ° so as to be positioned between adjacent vertical support wheels 66 in plan view. The vertical cylindrical portion 61a is supported by three horizontal support wheels 67 provided. Then, one of the three vertical support wheels 66 is supported by the output shaft of the electric motor 68 provided on the support frame 64 and is rotated by the electric motor 68, and the raw material supply chute 63 is moved. It is designed to rotate.
[0004]
The vertical support wheel 66 that is directly rotated by the electric motor 68 is movable forward and backward toward the center of the raw material supply chute 63 and can be fixed. Further, the position of the horizontal support wheel 67 can be adjusted toward the center of the raw material supply chute 63. In this example, the bracket 69 to which the horizontal support wheel 67 is attached is provided on the support frame 65 by the adjuster device 70 so as to be able to advance and retreat toward the center of the raw material supply chute 63 and to be fixed. These vertical support wheels 66 and horizontal support wheels 67 are made of a grease-sealed shaft and bearings in order to prevent wear caused by dust, and are rubber tires for compressing and supporting the assembly.
[0005]
[Patent Document 1]
Japanese Examined Patent Publication No. 61-56023 (Fig. 3-5)
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional material supply device for a rotary crusher, the raw material supply chute 63 is rotatably supported by a plurality of vertical support wheels 66 and a plurality of horizontal support wheels 67, and the vertical support wheels are supported by an electric motor 68. Since one of the vertical support wheels 66 of 66 is driven to rotate and the raw material supply chute 63 is rotated, there are the following problems. With respect to the vertical support wheel 66, an annular disk 61 b fixed to the outer periphery of the raw material supply chute 63 is in contact with the vertical support wheel 66, and an inner peripheral side part (the central part of the raw material supply chute 63) of the disk 61 b A peripheral speed difference corresponding to the contact width (tire width) of the vertical support wheel 66 occurs between the outer peripheral portion and the outer peripheral portion. Due to the difference in peripheral speed, the vertical support wheel 66 is constantly twisted, so that the shaft and bearing of the vertical support wheel 66 may be deformed to cause early damage thereof. In particular, the vertical support wheels that are directly driven by the electric motor 68 are constantly acted by the driving torque of the electric motor, so that the degree of damage is further severe and early damage occurs at an earlier stage.
[0007]
Further, when the crushed raw material is supplied into the raw material supply chute 63, an impact force due to the fall of the crushed raw material is applied to the raw material supply chute 63. When the vertical support wheel 66 made of a rubber tire receives this large impact force, the rubber portion repeats deformation and restoration. Further, with regard to the support in the horizontal direction, the raw material supply chute 63 is supported by the horizontal support wheel 67 only at the position of the vertical cylindrical portion 61a that is substantially in the middle in the height direction. For these reasons, it is not sufficient in that the raw material supply chute 63 is stably and smoothly rotated when the crusher main body swings in the circumferential direction during operation. For this reason, there is room for improvement in that the crushing material is supplied to the crusher crushing chamber evenly in the circumferential direction of the crushing chamber, and the horizontal support wheel 67 and the vertical support wheel 66 are damaged early due to the variable load acting. There was a possibility that it would occur.
[0008]
This invention is made | formed in view of such a situation, Comprising: The objective of this invention can rotate a raw material supply rotation chute stably and smoothly, and this crushes a crushing raw material in a crusher crushing chamber. A rotatory type capable of evenly supplying in the circumferential direction of the chamber and preventing early damage of the horizontal and vertical mechanical support portions that rotatably support the raw material supply rotary chute It is providing the raw material supply apparatus for crushers.
[0009]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention takes the following technical means. In the first aspect of the invention, the crushing raw material is added., With a plurality of raw material discharge openings on the peripheral wallRaw material supply rotation chute and upper part of spindle upper end support mechanism of rotary crusherOn bearingOf the raw material supply rotary chuteThan the material discharge openingA raw material supply rotation chute vertical direction support mechanism that rotatably supports the raw material supply rotation chute via a rolling bearing provided on the lower side;Can rotate around a vertical axis,Raw material supply rotating chuteThan the raw material discharge opening inOn the upper outer peripheral surfaceAlong each otherArranged at intervals, the raw material supply rotating chute is supported in the horizontal direction.At least 3Horizontal support wheels ofAt least 3A raw material supply device for a rotary crusher, which is coupled to at least one horizontal support wheel among the horizontal support wheels, and includes a drive unit for rotating the raw material supply rotation chute.
[0010]
According to a second aspect of the present invention, in the raw material supply device for a rotary crusher according to the first aspect, the horizontal support wheel is made of a rubber tire.
[0011]
According to a third aspect of the present invention, in the raw material supply device for a rotary crusher according to the second aspect of the present invention, the horizontal support wheel comprises a cored tire.
[0012]
According to a fourth aspect of the present invention, in the raw material supply apparatus for a rotary crusher according to any one of the first to third aspects, the horizontal support wheel is positioned so as to be movable forward and backward with respect to the raw material supply rotation chute. A horizontal support wheel position adjusting device is provided.
[0013]
  The invention of claim 5 is the raw material supply device for a rotary crusher according to any one of claims 1 to 4, wherein the raw material supply rotation chute has a bottomed cylindrical shape,A dead stock area is formed at the center of the flat bottom plate that forms the horizontal bottom.The present invention is characterized in that it has a configuration having it.According to a sixth aspect of the present invention, in the raw material supply apparatus for a rotary crusher according to the fifth aspect, a flat plate liner for the bottom plate is provided on the bottom plate so as to surround the periphery of the dead stock region. It is characterized by.
[0014]
  The raw material supply device for a rotary crusher according to the present invention is:A crushing raw material is charged and provided with a raw material supply rotating chute having a plurality of raw material discharge openings on the peripheral wall,Upper part of spindle upper end support mechanism of rotary crusherOn bearingOf the raw material supply rotary chuteThan the material discharge openingA raw material supply rotating chute vertical support mechanism that rotatably supports the raw material supply rotating chute via a rolling bearing provided on the lower side;Can rotate around a vertical axis,Raw material supply rotating chuteThan the raw material discharge opening inOn the upper outer peripheral surfaceAlong each otherSpacedAt least 3With the horizontal support wheel, the raw material supply rotating chute is supported in the vertical direction and the horizontal direction,At least 3A driving machine (for example, an electric motor) coupled to at least one horizontal support wheel among the horizontal support wheels is rotationally driven to rotate the raw material supply rotation chute.
[0015]
  As a result, unlike the conventional vertical support wheel made of a rubber tire, the raw material supply device for a rotating crusher according to the present invention stably supports the raw material supply rotation chute by the rolling bearing in the vertical direction without vertical movement. Can do. Further, the rolling bearing of the raw material supply rotating chute vertical support mechanism can support a load in the horizontal direction as well as in the vertical direction. Thereby, unlike the conventional device, it was arranged on the outer peripheral surface of the upper part of the raw material supply rotation chuteThe at least threeSince the horizontal support wheel and the rolling bearing provided on the lower side of the raw material supply rotary chute are supported in the horizontal direction at the upper and lower portions of the raw material supply rotary chute, the raw material supply rotary chute is not changed even in the horizontal direction. It can be supported stably.
[0016]
Therefore, according to the raw material supply device for a rotary crusher according to the present invention, the raw material supply rotation chute can be stably and smoothly rotated, so that the crushed raw material is evenly distributed in the crushing chamber circumferential direction in the crusher crushing chamber. This can prevent uneven wear of the corn cave in the crusher crushing chamber, and can maintain a good quality of the crushed product. Further, since the raw material supply rotary chute can be stably and smoothly rotated as described above, the horizontal and vertical mechanical support portions (such as the shafts of the horizontal support wheels and the horizontal support wheel) that rotatably support the raw material supply rotary chute are supported. Bearings, rolling bearings of vertical support mechanisms, etc.) can be prevented from premature damage.
[0017]
In the raw material supply device for a rotary crusher according to the present invention, the horizontal support wheel is preferably made of a rubber tire. Since the horizontal support wheel made of rubber tires has elasticity, when the raw material supply rotary chute receives a large fluctuating load in the horizontal direction, the position relative to the raw material supply rotary chute from the center of the raw material supply rotary chute The reaction force works to eliminate the deviation.
[0018]
Among horizontal support wheels made of rubber tires, a cored tire (solid tire) is preferable. The crushed raw material (raw stone) supplied from above into the raw material supply rotating chute may come off the dead stock, hit the bottom plate and be crushed by impact, and the fragments may be scattered. In that case, the debris may be caught between the horizontal support wheel and the raw material supply rotation chute, and the pneumatic tire may be punctured. According to the horizontal support wheel made of a cored tire (solid tire), it is possible to avoid a device stop due to puncture.
[0019]
  In the raw material supply device for a rotary crusher according to the present invention, the horizontal support wheel is used as a raw material supply rotation chute.Than the raw material discharge opening inIt is preferable to arrange a total of at least three at equiangular intervals with respect to the rotation center of the raw material supply rotation chute on the upper outer peripheral surface. In this way, the rotation of the raw material supply rotary chute is constrained to be performed around the axis of the vertical support mechanism of the raw material supply rotary chute, and the rotational force generated by the horizontal support wheel coupled to the drive unit is controlled by the raw material supply rotary chute. Can be transmitted reliably. in this case,At least 3With the horizontal support wheel position adjustment device that adjusts the position of the horizontal support wheel relative to the raw material supply rotation chute, the raw material supply rotation chute is evenly pressed in the horizontal direction while being centered at the rotation center. As easily asSaidThe position of the horizontal support wheel can be adjusted.
[0020]
In the raw material supply device for a rotary crusher according to the present invention, a raw material supply rotary chute having a bottomed cylindrical shape, having a dead stock region at the bottom, and having a plurality of raw material discharge openings on the peripheral wall The crushed raw material dropped from above and dropped on the dead stock is evenly distributed around the dead stock by the centrifugal force generated by the rotation of the raw material supply rotary chute, and each of the peripheral walls of the raw material supply rotary chute is Since the material can be discharged evenly from the material discharge opening, the action of the material supply rotation chute having this dead stock region and the stable rotation of the material supply rotation chute described above are combined, and the rotation type is better. The crushing raw material can be evenly supplied to the crushing chamber of the crushing machine in the circumferential direction of the crushing chamber.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a configuration of a raw material supply device for a rotary crusher according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining a configuration of a raw material supply device for a rotary crusher shown in FIG. It is a front longitudinal cross-sectional view, Comprising: About the raw material supply rotation chute, the left half is shown in cross section.
[0022]
In FIG. 2, 31 is a main shaft extending in the vertical direction of the rotary crusher, and the upper portion of the main shaft 31 is shown. Reference numeral 32 denotes an upper bearing portion that supports the upper end of the main shaft 31, and the upper bearing portion 32 is supported by a spider arm 34 fixed to the upper end of an upper frame (upper body) 33 of the rotary crusher. The upper bearing portion 32 and the spider arm 34 constitute a spindle upper end support mechanism. Reference numeral 35 denotes a crusher hopper having an empty cross-section circle fixed to the upper frame 33. A crushing chamber (not shown) of a rotary crusher is formed between a cone cave (not shown) mounted on the inner peripheral surface of the upper frame 33 and a mantle (not shown) attached to the main shaft 31.
[0023]
As shown in FIGS. 1 and 2, the raw material supply device for a rotary crusher according to the present embodiment has a bottomed cylindrical shape, has a dead stock region 7b at the bottom, and discharges a plurality of raw materials to the peripheral wall. The raw material supply rotary chute 4 having an opening 6a for supplying the raw material to be crushed from above and the upper bearing portion 32 constituting the spindle upper end support mechanism of the rotary crusher is provided. A raw material supply rotary chute vertical support mechanism that rotatably supports the raw material supply rotary chute 4 via a rolling bearing 3 provided at the bottom of the bottom of the material, and a circular outer shape provided on the outer periphery of the upper part of the raw material supply rotary chute 4 A cylindrical guide ring 8, which is an example of a guide having a surface, is arranged on the outer peripheral surface of the guide ring 8 along the circumferential direction at 120 ° equiangular intervals along the circumferential direction, and the raw material supply rotating chute 4 is arranged in the horizontal direction. The horizontal support wheels 9A to 9C to be supported at the same time, the horizontal support wheel position adjusting device for adjusting the positions of the horizontal support wheels 9A to 9C with respect to the center of the raw material supply rotary chute 4, and the horizontal An electric motor 11 is connected to one horizontal support wheel 9A among the support wheels 9A to 9C, and serves as a drive unit for directly rotating and driving the horizontal support wheel 9A to rotate the raw material supply rotation chute 4. Yes.
[0024]
3 is a front view showing the left half of the raw material supply rotary chute in FIGS. 1 and 2, FIG. 4 is a plan view of the raw material supply rotary chute in FIGS. 1 and 2, and FIG. 5 is the bottom of the raw material supply rotary chute in FIG. FIG.
[0025]
First, the raw material supply rotation chute vertical support mechanism and the raw material supply rotation chute will be described. As shown in FIG. 2, a rotating chute vertical support shaft 2 that extends vertically in the vertical direction is fixed to the mounting base 1 that is mounted on the upper bearing portion 32 of the rotary crusher. A rolling bearing 3 is mounted on the rotary chute vertical support shaft 2. On the other hand, as shown in FIGS. 3 and 4, the raw material supply rotary chute 4 has a cylindrical chute peripheral wall 6 erected on a flat bottom plate 7 a constituting a horizontal bottom portion 7, and a lower side of the bottom plate 7 a. The bottom end vertical cylinder 5 is fixed to the (back side) with a bracket. The bottom end vertical cylinder 5 is fixed to the lower side of the bottom plate 7a so that the axis (rotation center line) of the raw material supply rotation chute 4 passes through the center of the bottom end vertical cylinder 5. Then, by attaching the bottom end vertical cylindrical body 5 to the rotary chute vertical support shaft 2 via a rolling bearing 3, the mounting base is fixed to the upper bearing portion 32 of the rotary crusher. 1, the raw material supply rotating chute 4 is rotatably supported.
[0026]
The rolling bearing 3 is provided such that its inner ring is fixed to the rotary chute vertical support shaft 2 and its outer ring is fixed to the bottom end vertical cylindrical body 5 of the raw material supply rotary chute 4. The rotary chute vertical support shaft 2 provided on the upper bearing portion 32 of the rotary crusher and the bottom end vertical cylindrical body 5 of the raw material supply rotary chute 4 are rotatably supported with respect to the rotary chute vertical support shaft 2. The rolling bearing 3 is configured as a raw material supply rotary chute vertical support mechanism that rotatably supports the raw material supply rotary chute 4. In the raw material supply rotary chute vertical support mechanism, the mounting relationship between the rotary chute vertical support shaft and the bottom end vertical cylindrical body may be reversed.
[0027]
The structure of the chute peripheral wall 6 of the raw material supply rotating chute 4 will be described. As shown in FIGS. 3 and 4, a guide is formed concentrically with the chute peripheral wall 6 on the outer side of the upper part of the chute peripheral wall 6 having a circular cross section. A ring 8 is attached. The guide ring 8 is for arranging three horizontal support wheels 9A to 9C described later. The chute peripheral wall 6 is provided with a plurality of raw material discharge openings 6a along the circumferential direction in the present embodiment, spaced apart from each other at the same interval. As shown in FIG. 3, each raw material discharge opening 6 a is an opening that rises from the bottom plate 7 a and forms a rectangular shape in front view along the circumferential direction. The upper inner peripheral liner 6b made of steel is fixed to the upper inner peripheral surface of the chute peripheral wall 6 with screws.
[0028]
Further, a portion (three locations in the present embodiment) between adjacent raw material discharge openings 6a on the chute peripheral wall 6 is dead by attaching a flat steel side liner 6c to this portion by bolting. It has been a stock area. On both sides of the side liner 6c in the width direction, prismatic steel partition members 6d extending in the vertical direction are attached so as to protrude from the surface of the side liner 6c. In the present embodiment, a total of three dead stock areas are provided.
[0029]
Next, the structure of the bottom 7 of the raw material supply rotating chute 4 will be described with reference to FIGS. The flat bottom plate 7a described above has a hexagonal shape in which three apex portions of a triangle are cut off. As shown in FIG. 4, a dead stock region 7b having a nearly circular shape that forms a nine-sided plan view with the raw material supply rotation chute axis as the center is provided on the bottom plate 7a. On this bottom plate 7a, a plate-shaped steel bottom plate liner 7c divided into nine parts in the present embodiment so as to surround the dead stock region 7b so as to surround the dead stock region 7b. Is fixed by screwing. A prismatic shape extending in the horizontal direction in a state of projecting upward from the surface of the bottom plate liner 7c and projecting toward the center of the dead stock region 7b on a straight side facing the dead stock region 7b of each bottom plate liner 7c. A steel partition member 7d is attached. In this embodiment, a total of nine steel partition members 7d are attached. The nine steel partition members 7d constitute an annular protrusion that surrounds the dead stock region 7b.
[0030]
Next, a drive mechanism for rotating the raw material supply rotation chute 4 will be described. As shown in FIGS. 1 and 2, a support frame 10 formed by connecting a channel material (grooved steel material) having a U-shaped cross section in a hexagonal shape is fixed to the upper end of a crusher hopper 35. The electric motor 11 is attached to the movable bracket 12 so that the output shaft is vertically vertical. A horizontal support wheel 9 </ b> A made of a cored tire (solid tire) is connected to the output shaft of the electric motor 11 in a horizontal posture in a state of being in contact with the outer peripheral surface of the guide ring 8. The movable bracket 12 is formed with four elongated holes 12a extending in the horizontal direction, and contact pieces 12b are fixed to both side surfaces. A fixed bracket 13 is disposed between the movable bracket 12 and the crusher hopper 35, and the fixed bracket 13 is fixed to the upper peripheral surface of the crusher hopper 35 and the support frame 10.
[0031]
Two adjustment screw holding fittings 14 are fixed to the fixed side bracket 13. An adjusting screw 15 is screwed into each of the two adjusting screw holding brackets 14, and the adjusting screw 15 is rotated with respect to the contact piece 12 b fixed to the movable side bracket 12 by rotating the adjusting screw 15. Can be moved forward and backward. The movable bracket 12 is attached to the fixed bracket 13 via bolts inserted into the four long holes 12a. When adjusting the force with which the horizontal support wheel 9A abuts against the outer peripheral surface of the guide ring 8 and presses the raw material supply rotation chute 4 toward the center, the bolts inserted into the four long holes 12a are slightly loosened. Then, the adjusting screw 15 is rotated to move the movable side bracket 12 forward or backward. When the position adjustment of the horizontal support wheel 9A with respect to the guide ring 8 is completed, the movable side bracket 12 is firmly fixed by tightening the bolt. The movable bracket 12, the fixed bracket 13, the adjustment screw 15 and the like can move the horizontal support wheel 9A forward and backward with respect to the raw material supply rotary chute 4 (in this embodiment, with respect to the rotation center of the raw material supply rotary chute 4). A horizontal support wheel position adjusting device for adjusting the position is configured.
[0032]
Further, the rotation of the raw material supply rotation chute 4 is constrained to be performed around the axis of the rotation chute vertical support shaft 2, and the rotational force by the horizontal support wheel 9 </ b> A coupled to the output shaft of the electric motor 11 is applied to the guide ring 8. In order to ensure transmission, as shown in FIGS. 1 and 2, in addition to the horizontal support wheel 9 </ b> A, on the outer peripheral surface of the guide ring 8, 120 ° equiangularly with respect to the center of the raw material supply rotating chute 4 in this example. Horizontal support wheels 9B, 9C made of cored tires (solid tires) are arranged in a state where they are in contact with the guide ring 8 at intervals.
[0033]
The horizontal support wheel 9 </ b> B will be described. The horizontal support wheel 9 </ b> B is rotatably attached to the movable bracket 16 in a horizontal posture while being in contact with the outer peripheral surface of the guide ring 8. The movable bracket 16 is formed with four elongated holes 16a extending in the horizontal direction, and a contact piece 16b is fixed to the base end surface. A fixed bracket 17 is disposed between the movable bracket 16 and the crusher hopper 35, and the fixed bracket 17 is fixed to the upper peripheral surface of the crusher hopper 35 and the support frame 10.
[0034]
Two fixing screw holding fittings 18 are fixed to the fixed side bracket 17. An adjustment screw 19 is screwed into each of the two adjustment screw holding brackets 18. By rotating the adjustment screw 19, the adjustment screw 19 is in contact with the contact piece 16 b fixed to the movable bracket 16. Can be moved forward and backward. The movable bracket 16 is attached to the fixed bracket 17 via bolts inserted into the four long holes 16a. When adjusting the force with which the horizontal support wheel 9B abuts on the outer peripheral surface of the guide ring 8 and presses the raw material supply rotating chute 4 in the center direction, the bolts inserted into the four long holes 16a are slightly attached. Loosen and rotate the adjustment screw 19 to move the movable bracket 16 forward or backward. When the position adjustment of the horizontal support wheel 9B with respect to the guide ring 8 is completed, the movable side bracket 16 is firmly fixed by tightening the bolt.
[0035]
The movable bracket 16, the fixed bracket 17, the adjustment screw 19, and the like can move the horizontal support wheel 9 </ b> B back and forth with respect to the material supply rotation chute 4 (in this embodiment, with respect to the rotation center of the material supply rotation chute 4). A horizontal support wheel position adjusting device for adjusting the position is configured. The other horizontal support wheel 9C is also provided with a horizontal support wheel position adjusting device having the same configuration as the horizontal support wheel 9B.
[0036]
Thus, the raw material supply rotation chute 4 is supported in the horizontal direction by the three horizontal support wheels 9A to 9C in a state where the guide ring 8 is pressed evenly. The cored tire (solid tire) is, for example, a double structure in which a rubber core tire (elastic body) is surrounded by a rubber cover tire (tread (grounding portion) portion), and the puncture phenomenon is prevented. This tire has elasticity without waking up.
[0037]
In the rotary crusher provided with the raw material supply device configured as described above, the rotation direction of the main shaft 31 of the rotary crusher and the rotation direction of the raw material supply rotation chute 4 are set in the same direction, for example. Is rotated to rotate the horizontal support wheel 9A, the rotational force of the electric motor 11 is transmitted to the guide ring 8 through the horizontal support wheel 9A, and the raw material supply rotation chute 4 rotates. At this time, the other horizontal support wheels 9 </ b> B and 9 </ b> C are driven to rotate by the rotation of the guide ring 8. Then, the crushing raw material is fed from the head chute of the belt conveyor disposed above the raw material supply rotation chute 4 toward the dead stock region 7 b of the rotating raw material supply rotation chute 4. When the operation is started, first, dead stock due to the crushed raw material is formed in the dead stock region 7 b on the bottom plate 7 a of the raw material supply rotating chute 4. After that, the crushed raw material dropped from above and dropped onto the dead stock is evenly distributed around the dead stock by the centrifugal force generated by the rotation of the raw material supply rotating chute 4, and each raw material discharge opening on the chute peripheral wall 6 is dispersed. It is discharged evenly from 6a.
[0038]
In this case, in this raw material supply apparatus, unlike the conventional vertical support wheels made of rubber tires, the raw material supply rotary chute 4 is stabilized in the vertical direction without vertical movement by the rolling bearing 3 constituting the raw material supply rotary chute vertical support mechanism. Can be supported. The rolling bearing 3 can support a load in the horizontal direction as well as the vertical direction. Thereby, in this raw material supply apparatus, unlike the conventional apparatus, the horizontal support wheels 9A to 9C contacting the guide ring 8 on the upper part of the raw material supply rotation chute and the rolling bearing provided on the lower side of the bottom of the raw material supply rotation chute. 3, the raw material supply rotary chute 4 is supported in the horizontal direction at the upper and lower portions, so that the raw material supply rotary chute 4 can be stably supported without fluctuation even in the horizontal direction.
[0039]
Thereby, according to this raw material supply apparatus, since the raw material supply rotation chute 4 having the dead stock region 7b can be stably and smoothly rotated, combined with the function (function) of the raw material supply rotation chute 4 Thus, the crushing material can be uniformly supplied to the crusher crushing chamber in the circumferential direction of the crushing chamber, and uneven wear of the corn cave in the crusher crushing chamber can be prevented. Also, horizontal and vertical mechanical support portions that rotatably support the raw material supply rotating chute 4, that is, the shafts and bearings of the horizontal support wheels 9A to 9C, and the vertical chute vertical support shaft 2 of the vertical support mechanism, Early damage to the rolling bearing 3 and the like can be prevented.
[0040]
Further, according to this raw material supply apparatus, the dead stock by the crushed raw material is formed in the dead stock region 7b on the bottom plate 7a, and the crushed raw material charged from above is dropped on this dead stock. The wear of the dead stock region 7b can be prevented. Furthermore, since the annular protrusions by the steel partition members 7d are provided so as to surround the dead stock region 7b, even in the case of a crushed raw material from which fine particles of 20 to 30 mmφ or less have been removed, the dead stock region 7b A dead stock can be formed. In addition to this, on the bottom plate 7a, a bottom plate liner 7c is provided in the remaining portion excluding the dead stock region 7b, and an annular protrusion formed by the steel partition member 7d is provided in the dead stock region 7b of the bottom plate liner 7c. The crushed raw material does not collide with the portion of the straight side facing. Therefore, the bottom plate 7a can be reliably protected by these things.
[0041]
  Moreover, according to this raw material supply apparatus, the raw material supply rotation chute4Since the portion between the adjacent material discharge openings 6a in the chute peripheral wall 6 is a dead stock region by providing the side liner 6c, the chute peripheral wall 6 of the crushing raw material colliding with a high impact force at high speed is formed. Damage can be prevented. Moreover, since the steel partition members 6d are provided on both sides of each side liner 6c, the dead stock can be reliably formed in the dead stock region.
[0042]
In the present embodiment, the raw material supply rotation chute has been described as having a configuration in which the dead stock region 7b is provided at the bottom. However, the present invention is not limited to this, and the raw material supply rotation chute is not limited to this. For example, a configuration in which an inclined plate is provided instead of the dead stock region 7b may be used. Further, the number of horizontal support wheels may be more than three, for example, four. In addition, a hydraulic motor can be used as the driving machine instead of the electric motor.
[0043]
【The invention's effect】
  As described above, the raw material supply device for a rotary crusher according to the present invention is:A crushing raw material is charged and provided with a raw material supply rotating chute having a plurality of raw material discharge openings on the peripheral wall,Upper part of spindle upper end support mechanism of rotary crusherOn bearingOf the raw material supply rotary chuteThan the material discharge openingA raw material supply rotating chute vertical support mechanism that rotatably supports the raw material supply rotating chute via a rolling bearing provided on the lower side;Can rotate around a vertical axis,Raw material supply rotating chuteThan the raw material discharge opening inOn the upper outer peripheral surfaceAlong each otherSpacedAt least 3With the horizontal support wheel, the raw material supply rotating chute is supported in the vertical direction and the horizontal direction,At least 3The drive unit coupled to at least one horizontal support wheel of the horizontal support wheels is rotationally driven to rotate the raw material supply rotation chute. Thereby, according to the raw material supply device for a rotary crusher according to the present invention, the raw material supply rotation chute can be stably and smoothly rotated, so that the crushing raw material is evenly distributed in the crushing chamber circumferential direction in the crusher crushing chamber. The corn cave in the crusher crushing chamber can be prevented from uneven wear, and the quality of the crushed product can be maintained well. In addition, since the raw material supply rotation chute can be stably and smoothly rotated as described above, the shaft and the bearing of the horizontal support wheel that supports the raw material supply rotation chute in the horizontal direction, and the vertical direction in which the raw material supply rotation chute is supported in the vertical direction. Early damage to the rotating chute vertical support shaft and the rolling bearing of the support mechanism can be prevented.
[0044]
In addition, in the case of having a bottomed cylindrical shape, having a dead stock region at the bottom, and having a raw material supply rotating chute having a plurality of raw material discharge openings on the peripheral wall, the dead stock is introduced from above. Since the crushing raw material that has fallen above can be evenly distributed around the dead stock by the centrifugal force generated by the rotation of the raw material supply rotary chute, and can be discharged evenly from the raw material discharge openings on the peripheral wall of the raw material supply rotary chute In addition, the action of the raw material supply rotary chute having this dead stock region and the stable rotation of the raw material supply rotary chute described above combine the crushing raw material into the crushing chamber of the rotary crusher better in the circumferential direction of the crushing chamber. Can be supplied evenly.
[Brief description of the drawings]
FIG. 1 is a plan view showing a configuration of a raw material supply apparatus for a rotary crusher according to an embodiment of the present invention.
FIG. 2 is a front longitudinal sectional view for explaining the configuration of the raw material supply device for the rotary crusher shown in FIG. 1, and the left half of the raw material supply rotation chute is shown in cross section.
3 is a front view showing a left half cross section of the raw material supply rotation chute in FIGS. 1 and 2. FIG.
4 is a plan view of the raw material supply rotation chute in FIGS. 1 and 2. FIG.
5 is a longitudinal sectional view of the bottom of the raw material supply rotating chute in FIG. 3. FIG.
FIG. 6 is a longitudinal sectional view showing a configuration of a conventional raw material supply device for a rotary crusher.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Mounting base 2 ... Rotary chute vertical support shaft 3 ... Rolling bearing 4 ... Raw material supply rotation chute 5 ... Bottom end vertical cylindrical body 6 ... Chute peripheral wall 6a ... Raw material discharge opening 6b ... Upper inner peripheral liner 6c ... Side liner 6d ... Steel partition member 6e ... Metal projection 6f ... Rotating chute side pulley 7 ... Bottom 7a ... Bottom plate
7b ... Dead stock region 7c ... Liner for bottom plate 7d ... Steel partition member 8 ... Guide ring 9A-9C ... Horizontal support wheel 10 ... Support frame 11 ... Electric motor
DESCRIPTION OF SYMBOLS 12 ... Movable side bracket 12a ... Elongate hole 12b ... Contact piece 13 ... Fixed side bracket 14 ... Adjustment screw holding bracket 15 ... Adjustment screw 16 ... Movable side bracket
16a ... long hole 16b ... contact piece 17 ... fixed side bracket 18 ... adjusting screw holding bracket 19 ... adjusting screw 31 ... main shaft 32 ... upper bearing part 33 ... upper frame
34 ... Spider arm 35 ... Crusher hopper

Claims (6)

Crushing the raw material is turned, and the raw material supply rotary chute having a plurality of raw material discharge opening in the peripheral wall, it is provided on the upper bearing portion of the main shaft upper end supporting mechanism of gyrating-type crusher, the raw material of the raw material supply rotary chute A raw material supply rotary chute vertical support mechanism that rotatably supports the raw material supply rotary chute via a rolling bearing provided below the discharge opening, and the raw material supply that is rotatable about a vertical axis. than the material discharge opening in the rotating chute are spaced apart from one another along the outer peripheral surface of the upper, and at least three horizontal support wheels for supporting said material supply rotary chute in horizontal direction, at least three And a drive unit that is coupled to at least one of the horizontal support wheels and that rotates the raw material supply rotation chute. Raw material supply device for a formula crusher.   2. The raw material supply device for a rotary crusher according to claim 1, wherein the horizontal support wheel is made of a rubber tire.   The raw material supply device for a rotary crusher according to claim 2, wherein the horizontal support wheel is made of a cored tire.   The rotative type according to any one of claims 1 to 3, further comprising a horizontal support wheel position adjusting device that adjusts the position of the horizontal support wheel so that the horizontal support wheel can advance and retreat relative to the raw material supply rotation chute. Raw material supply equipment for crushers. The said raw material supply rotation chute | shoot has a structure with a dead stock area | region in the center part of the flat bottom plate which comprises bottomed cylindrical shape and comprises the bottom part which makes a horizontal. The raw material supply apparatus for a rotary crusher according to any one of -4. 6. The raw material supply apparatus for a rotary crusher according to claim 5, wherein a flat plate liner is provided on the bottom plate so as to surround the periphery of the dead stock region.

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