JP2021065819A - Rotary crusher - Google Patents

Abstract

To provide a rotary crusher having a grain size adjustment mechanism easy in maintenance and adjustment work.SOLUTION: A rotary crusher of the embodiment comprises: a plurality of rotors journaled by a rotary shaft 31a; a casing 2A arranged in a cylindrical shape concentric with the vertical axial center on the radial outer peripheral side of the plurality of rotors; a breaker 42a arranged above a discoid first rotor 32a arranged in a crushing chamber 30a and crushing a crushing object; hammers 34a to 37a arranged between the rotors in a rotatable or lockable manner; and a choke ring arranged in a circular shape concentric with the vertical axial center on the radial outer peripheral side of the second rotor 33a and installed while being arranged in a ring shape together with a plurality of triangular plate materials in arrangement of in the concentric circular shape.SELECTED DRAWING: Figure 3

Description

The present invention relates to a rotary crusher having a particle size adjusting mechanism.

In a rotary crusher used for recycling resources, crushing and crushing home appliances to be disposed of, motor products, etc., a device having a particle size adjusting mechanism for adjusting the particle size of the crushed material is used. ..

In the crusher particle size adjustment mechanism, movable choke rings are provided at a plurality of locations at predetermined intervals between the lower end flange of the cylindrical shell of the vertical crusher and the upper end flange of the discharge cylinder, and the choke rings are provided in the radial direction by a moving means. The gap between the crushing member and the crushing member can be adjusted by moving it forward and backward freely, the gap is set to a small size of less than half of the set particle size, and the comb tooth edge with many notches on the inner peripheral edge of the movable choke ring is provided. It is known that the particle size is adjusted to the set particle size or less by the through hole formed by the gap and the notch (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2003-117414

In the particle size adjusting mechanism in the conventional vertical crusher, for example, a choke ring is sandwiched between the flanges at the boundary between the upper casing and the lower casing, and the gap between the rotor and the choke ring is formed from the outside of the casing to the upper casing. It was an adjustment method in which the choke ring was moved and adjusted while it was being lifted by lifting it with a crane or the like.

The problem with such an adjustment method is that it is necessary to lift the casing, which is a heavy object, with a crane or the like, so that a large-scale work, labor, or the like is required as the adjustment work.

On the other hand, as a particle size adjusting mechanism that does not take the method of lifting the casing, a particle size adjusting mechanism having a choke ring structure that slides and adjusts the choke ring from the outside of the casing to the inside of the casing has also been used. The problem with such an adjustment method is that crushed dust such as metal and resin, lumps mixed with oil, etc. tend to adhere to the periphery of the flange at the boundary between the upper casing and the lower casing.・ It was difficult to adjust by sliding the choke ring due to lumps.

That is, it was difficult to slide-adjust only the choke ring unless not only the slide adjustment of the choke ring but also maintenance work such as cleaning between the flanges inside and outside the casing was sufficiently performed.

An object to be solved by the present invention is to provide a rotary crusher having a particle size adjusting mechanism that is easy to maintain and adjust.

In order to solve the above problems, the rotary crusher according to the present invention is a rotary crusher for crushing an object to be crushed. The rotary crusher is axially supported by a rotating shaft that rotates around a vertical axis axis along the vertical direction, and has a plurality of rotors provided with a rotating mechanism and the vertical axis center on the radial outer peripheral side of the plurality of rotors. A casing arranged concentrically, a crushing chamber provided in the casing, and a disk-shaped first rotor arranged in the crushing chamber among the plurality of rotors are arranged on the upper side. Of the breaker pivotally supported by the rotating shaft for crushing the crushing object put into the crushing chamber and the plurality of rotors for striking the crushing object passing through the crushing chamber. A hammer rotatably or oscillatingly arranged between any of the adjacent rotors, and a disk-shaped rotor arranged below the first rotor in the crushing chamber of the plurality of rotors. On the radial outer peripheral side of the second rotor, a choke ring is arranged concentrically with the vertical axis center, and the concentric arrangement is provided with a choke ring that is arranged and attached in a ring shape together with a plurality of triangular plates. .. The casing has a structure including an outer wall liner and an inner wall liner, and the outer wall liner and the inner wall liner are arranged on the radial outer peripheral side of the plurality of rotors in a concentric tubular shape with the vertical axis center. The peripheral wall is provided with a door-shaped structure having a door that can be opened and closed, and the inner wall liner facing the second rotor has a substantially L-shaped liner material on the short side. A long hole for mounting the choke ring and fixing it with a fixing bolt is provided in the door, and the fixing bolt is inserted into the long hole and the bolt insertion hole provided in the choke ring and fixed with a nut. The fixing position of the fixing bolt and the nut can be slid along the elongated hole diameter of the elongated hole, and the mounting position of the choke ring can be slid to the short side portion of the liner material. The particle size adjusting gap provided between the radial outer peripheral side of the second rotor and the choke ring can be adjusted.

According to the rotary crusher according to the present invention, it is possible to have a particle size adjusting mechanism that is easy to maintain and adjust.

It is a front view which shows the appearance (front) of the apparatus of embodiment of the rotary crusher which concerns on this invention. It is a side view which shows the apparatus appearance (side surface) of the rotary crusher of embodiment. It is a block diagram which shows the structure of the crushing chamber of the rotary crusher of embodiment. It is explanatory drawing which shows the particle size adjustment mechanism in the crushing chamber of the rotary crusher shown in FIG. It is a figure which shows the 1st particle size adjustment distance in the crushing chamber of the rotary crusher shown in FIG. 4A. It is a figure which shows the 2nd particle size adjustment distance in the crushing chamber of the rotary crusher shown in FIG. 4 (b). It is an external view which shows the door type structure in the crushing chamber of the rotary crusher of embodiment. It is an external view of the crushing chamber at the time of the door opening operation in the crushing chamber of the rotary crusher of embodiment. It is a structural drawing which shows the structure of the inner wall liner shown in FIG. It is a structural drawing which shows the structure of the inner wall liner of the upper stage shown in FIG. It is a structural drawing which shows the structure of the inner wall liner which has a choke ring shown in FIG. It is a structural drawing which shows the structure of the inner wall liner which has a choke ring which follows FIG. It is sectional drawing which shows the cross section in the arrow line-of-sight direction shown in FIG. It is a structural drawing which shows the structure of only the inner wall liner shown in FIG. 11 and FIG. It is a structural drawing which shows the structure of the choke ring shown in FIG. 11 and FIG. It is a figure which shows the adjustment position of the choke ring corresponding to the 1st and 2nd particle size adjustment distances in the crushing chamber shown in FIGS. 5 and 6. It is a figure which shows the structure of the sub-breaker shown in FIG. It is a figure which shows the structure of the breaker shown in FIG. It is a figure which shows the combination structure of the breaker and the sub-breaker shown in FIG.

Hereinafter, the rotary crusher according to the embodiment of the present invention will be specifically described with reference to the drawings. Here, common reference numerals are given to parts that are the same as or similar to each other, and duplicate description will be omitted. Here, in order to explain the structure and usage of the rotary crusher according to the present invention, in each of the following embodiments, the rotary used for crushing / crushing an object to be crushed such as a home electric appliance or a motor product. An example of a crusher will be taken up and described.

[Embodiment]
Hereinafter, the configuration of the embodiment of the rotary crusher according to the present invention will be described with reference to FIGS. 1 to 19. Here, FIG. 1 is a front view showing the appearance (front) of the apparatus according to the embodiment of the rotary crusher 1A according to the present invention. FIG. 2 is a side view showing the appearance (side surface) of the apparatus of the rotary crusher 1A of the embodiment. FIG. 3 is a configuration diagram showing a configuration in the crushing chamber 30a of the rotary crusher 1A of the embodiment. The figures after FIG. 4 will be described as appropriate.

The rotary crusher 1A shown in FIGS. 1 and 2 is a device for crushing objects to be crushed, such as home appliances and motor products that have been discarded or collected and disposed of. For example, as shown in FIGS. 1 to 8, the rotary crusher 1A mainly includes a casing 2A, a rotary crusher 3A, a breaker section 4A, a crusher stand 5A, and a power section 6A. ing.

1 and 2 show the appearance of the entire apparatus of the rotary crusher 1A, FIGS. 3 to 8 mainly show the casing 2A, and FIGS. 3 to 6 show the rotary crusher 3A. Further, FIGS. 1 to 3 show a crusher stand 5A, a power unit 6A, and the like. The breaker section 4A is shown in FIGS. 17 to 19 in detail in addition to FIGS. 3 to 6.

The object to be crushed to be charged into the rotary crusher 1A is, for example, a home appliance made of a metal material, a synthetic resin or the like, a motor product, or the like. For this purpose, the rotary crusher 1A includes a crushing chamber 30a having a crushing mechanism for crushing these crushed objects in the container of the casing 2A. The throw-in case portion 11a shown in FIGS. 1 and 2 and the upper casing 12a are connected to the casing 2A.

The charging case portion 11a is a charging container into which the object to be crushed is charged. The loading case portion 11a is provided with a loading port 111a into which a crushed object carried in from a belt conveyor or the like is loaded. The upper casing 12a is provided between the casing 2A provided with the crushing chamber 30a and the charging case portion 11a, and is for loading and dropping the crushed object charged into the charging case portion 11a into the crushing chamber 30a from the upper direction side. It is a container provided with a space area.

The casing 2A is a case mainly made of a steel material, which covers a structural portion such as a rotary crushing portion 3A and a breaker portion 4A that bears a crushing mechanism and firmly surrounds the space of the crushing chamber 30a. The casing 2A has a structure including outer wall liners 21a and 25a and inner wall liners 26a, 27a and 28a, which are peripheral walls. As shown in FIGS. 1 to 9 and the like (particularly shown in FIGS. 7 and 8), the outer wall liners 21a and 25a are provided with a grid-like convex frame on the surface of the plate-shaped outer wall to increase the strength.

In the structure of the casing 2A, as shown in FIGS. 1 to 3, the outer wall liners 21a and 25a, which are peripheral walls, are attached to the crushing chamber frame frame 210a, which is a frame made of steel, and are attached to the inner peripheral wall side. The inner wall liners 26a, 27a and 28a are attached from the upper side. The inner wall liners 26a, 27a and 28a are fixed to the outer wall liners 21a and 25a by the inner wall liner fixing bolts 22a.

The casing 2A is arranged concentrically with the vertical axis center on the radial outer peripheral side of the first rotor 32a and the second rotor 33a. The outer wall liners 21a and 25a and the inner wall liners 26a, 27a and 28a form a peripheral wall of the casing 2A arranged on the radial outer peripheral side of the first rotor 32a and the second rotor 33a, and are formed on the peripheral wall. Is provided with a door-type structure having a door 20a that can be opened and closed.

Further, as shown in FIG. 3, the third rotor 38a is attached concentrically with the vertical axis center of the rotating shaft 31a, and a discharge hammer (hammer 37a) is attached to the radial outer peripheral side of the rotor. is there.

In the door type structure, the casing 2A is provided with a cylinder 23a for opening and closing the door 20a, and the diameters of the first rotor 32a and the second rotor 33a are provided from the closed state of the door 20a of the casing 2A with the cylinder 23a as an axis. It has an opening / closing mechanism that opens toward the outer peripheral side in the direction and closes toward the center of the vertical axis from the open state of the door 20a of the casing 2A.

In the casing 2A, in order to fix the door 20a in a closed state when the device is operating or the like, the door 20a is provided with a door lock portion 24a including a door fixing bracket 241a and a door fixing bolt 242a shown in FIG. It will be provided.

The inner wall liner 27a faces the second rotor 33a arranged below the first rotor 32a of the inner wall liners 26a to 28a. As shown in FIGS. 4 to 6 described later, the plurality of inner wall liners 27a are arranged concentrically with the vertical axis center on the radial outer peripheral side of the second rotor 33a, and a plurality of the plurality of inner wall liners 27a are arranged concentrically with the vertical axis. It is provided with a choke ring 276a which is arranged and attached in a ring shape together with the triangular plate member 201a of the above.

The inner wall liner 27a is provided with an elongated hole 275a for mounting the choke ring 276a on the short side portion of the liner material 271a having a substantially L-shape and fixing the choke ring 276a with the fixing bolt 278a. The fixing bolt 278a is inserted into the elongated hole 275a of the inner wall liner 27a and the bolt insertion hole 277a provided in the choke ring 276a to adjust the fixing position in the elongated hole 275a, and then fastened and fixed with the nut 279a.

When adjusting the fixing position of the choke ring 276a, the fixing bolt 278a and the nut 279a can be fastened and the fixing position can be slid along the elongated hole diameter of the elongated hole 275a of the inner wall liner 27a, and the liner material 271a can be slid. The placement position of the choke ring 276a can be slid and moved to the short side portion of the. Thereby, the particle size adjusting gap provided between the radial outer peripheral side of the second rotor 33a and the choke ring 276a can be adjusted. An example of the detailed structure of the inner wall liner 27a as described above will be described with reference to FIGS. 11 to 16 described later.

As shown in FIGS. 1 and 2, the crusher mount 5A is a mount that supports the loading case portion 11a, the upper casing 12a, and the casing 2A, which are connected in a tubular shape. Further, in the crusher pedestal 5A, the rotating shaft 31a is attached to the gantry frame 51a in order to pivotally support the rotating shaft 31a of the rotating crushing portion 3A that bears the rotating mechanism of the casing 2A.

The crusher stand 5A is supported by four crusher side legs 511a having a seismic isolation structure at the installation location of the rotary crusher 1A. Preferably, the crusher side leg 511a has a semi-fixed structure in which, for example, a seismic isolation rubber is sandwiched between the ground side of the leg and the bottom of the leg so that the seismic isolation rubber can be slid in a specific direction and braked in another specific direction. Is adopted. As a result, even if a crushed material is clogged or obstructed, which may cause a serious accident that hinders the rotation of the rotary crusher 3A in the crush chamber 30a, the rotary crusher 1A sways and vibrates. Etc. can be alleviated.

The bottom surface side flange of the crushing chamber frame frame 210a is attached to the upper surface side of the gantry frame 51a. As shown in FIG. 3, the bottom flange of the crushing chamber frame frame 210a is provided with a discharge port 211a from which the crushed crushed material is discharged from the crushing chamber 30a. A discharge pipe port 52a is connected to the discharge port 211a together with a pipeline piped to a crusher pedestal 5A for discharging to the outside of the rotary crusher 1A. The discharge pipe port 52a is conductive to, for example, equipment of a conveyor belt conveyor for transporting crushed material.

The power unit 6A is a device that generates power for the rotary crusher 1A. As shown in FIG. 1, the power unit 6A includes, for example, an electric motor unit 61a, a power unit stand 62a, a power side pulley 63a, a V belt 64a, and a power side leg portion 611a.

The electric motor unit 61a includes an electric motor, a speed-controllable inverter device, a rotor shaft, and the like. A power side pulley 63a is connected to the rotor shaft in order to transmit the rotational force of the electric motor unit 61a, and a V-belt 64a is attached between the power side pulley 63a and the crusher side pulley 53a. As described above, the rotational force generated by the power unit 6A is transmitted to the rotational mechanism of the rotational crushing unit 3A via the V-belt 64a. For example, as shown in FIG. 1, the rotational force is transmitted to the rotating shaft 31a to which the crusher side pulley 53a is connected, and a plurality of rotors pivotally supported by the rotating shaft 31a rotate.

The power unit pedestal 62a is a pedestal on the power unit 6A side that supports the electric motor unit 61a, the power side pulley 63a, and the power side leg portion 611a. The power side leg portion 611a is provided on two columns supporting the power unit frame 62a and has a seismic isolation structure. Preferably, the power side leg 611a has a semi-fixed structure in which, for example, a seismic isolation rubber is sandwiched between the ground side of the leg and the bottom of the leg so that the seismic isolation rubber can be slid in a specific direction and can be braked in another specific direction. Will be adopted.

As a result, even when an obstacle or the like that may cause a serious accident that hinders the rotation of the power unit 6A occurs, it is possible to alleviate the shaking, vibration, or the like that causes the power unit 6A to fall. In the example of FIG. 1, the structure is such that the crusher pedestal 5A and the power unit pedestal 62a are connected, and the crusher side leg portion 511a and the power side leg portion 611a form six columns. ..

Next, the crushing mechanism and the configuration of the rotating mechanism in the crushing chamber 30a of the rotary crusher 1A shown in FIG. 3 will be described. As a crushing mechanism in the crushing chamber 30a, it is a structure mainly having a rotary crushing portion 3A and a breaker portion 4A. As shown in FIG. 3, the rotary crushing portion 3A includes a rotary shaft 31a, a plurality of rotors (disc-shaped first rotor 32a, second rotor 33a, third rotor 38a, substantially rectangular rotor 41a). It has hammers 34a to 37a and the like. The rotating shaft (rotor shaft) 31a is an axis that bears the rotating mechanism of the rotary crusher 1A. The plurality of rotors are pivotally supported by a rotating shaft (rotor shaft) 31a that rotates around the center of the vertical axis.

The substantially rectangular rotor 41a is a non-disc-shaped rotor arranged at the uppermost stage among the plurality of rotors in the crushing chamber 30a. In order to allow the substantially rectangular rotor 41a to pass through the large-shaped crushed object and the crushed object in the initial crushing process of the crushed object put into the crushing chamber 30a, FIG. As shown, it is formed in a substantially rectangular shape that can rotate in the crushing chamber 30a.

The first rotor 32a is located on the uppermost stage side of a plurality of disc-shaped rotors (disk-shaped first rotor 32a, second rotor 33a, third rotor 38a) provided in the crushing chamber 30a. It is a rotor. Further, the second rotor 33a is a rotor located below the first rotor of the plurality of disc-shaped rotors provided in the crushing chamber 30a.

Further, the third rotor 38a is a rotor located below the second rotor among the plurality of disc-shaped rotors provided in the crushing chamber 30a. When there is a third rotor 38a, the second rotor 33a is located on the lower stage side of the first rotor of the plurality of disc-shaped rotors provided in the crushing chamber 30a, and the third rotor 33a is located. The rotor is located on the upper side of the rotor 38a.

Further, the third rotor 38a is a rotor located at the lowest stage among the plurality of rotors in the crushing chamber 30a. The third rotor 38a is formed in a disk shape having an outer diameter smaller than the disc shape outer diameter of the second rotor 33a. A hammer 37a is connected to the third rotor 38a as a discharge hammer for discharging crushed material to the discharge port 211a on the outer peripheral side of the disk shape.

The hammers 34a to 37a shown in FIGS. 3 and 8 and the like hit the crushed object (including the crushed object) passing through the crushing chamber 30a.
As shown in FIG. 3, the hammer pin 311a is a shaft rod penetrating a substantially rectangular rotor 41a, a hammer 34a, a first rotor 32a, a hammer 36a, and a second rotor 33a, and the pin head has a substantially rectangular shape. It is fixed by the rotor 41a. The hammer 34a is rotatable between the substantially rectangular rotor 41a and the first rotor 32a with the hammer pin 311a as the shaft rod. Further, the hammer 36a is rotatable between the first rotor 32a and the second rotor 33a with the hammer pin 311a as the shaft rod.

As shown in FIG. 3, the sub-breaker pin 312a is a shaft rod penetrating the first rotor 32a, the hammer 35a, the second rotor 33a, and the third rotor 38a, and the pin head is the first rotor 32a. It is fixed by the cylindrical ridge portion 43a on the upper surface side of the. The hammer 35a is rotatable between the first rotor 32a and the second rotor 33a with the sub-breaker pin 312a as the shaft rod. The hammer 37a is swingable on the outer peripheral side of the third rotor 38a between the second rotor 33a and the third rotor 38a with the sub-breaker pin 312a as a support shaft. The hammer 37a makes it easy to discharge the crushed material accumulated on the bottom surface side of the crushing chamber frame frame 210a to the discharge port 211a.

As shown in FIG. 3, the breaker portion 4A has a breaker 42a and a sub-breaker 44a. The breaker 42a is arranged in the disc-shaped upper side of the first rotor 32a arranged in the crushing chamber 30a of the plurality of rotors and the upper side of the substantially rectangular rotor 41a in the crushing chamber 30a. It is pivotally supported by the rotating shaft 31a in order to crush the crushed object to be charged.

Since the breaker 42a is in a state close to the prototype of the crushed object to be charged as the first crushing process step of the crushed object to be charged, the breaker 42a secures a certain amount of space to pass downward. It has breaker arms 421a and 422a provided in a wing plate shape around a rotation shaft 31a so as to perform a crushing process. In addition, the breaker 42a has breaker protrusions 423a and 424a for pushing up the input from the lower side and giving an impact as the initial crushing treatment step of the object to be crushed.

For example, in the space region to be passed downward, the size and shape of the object to be crushed, the crushing mechanism of the crushing chamber 30a, the rotation mechanism, and the like are taken into consideration, and FIGS. 19A and 19B will be described later. A spatial area as shown in is provided.

The sub-breaker 44a is a functional unit that crushes the crushed object as a crushing process next to the first crushing process of the crushed object to be charged. For example, in the initial crushing process of the input crushing object, the structure in which the rotation trajectories of the breaker 42a do not overlap causes a screw-shaped rotating vortex in the crushing process. As the next crushing process, the sub-breaker 44a provided on the surface of the first rotor 32a whose rotational trajectories overlap with respect to the screw-shaped rotary vortex is used for the crushed object riding on the flow of the rotary vortex. , Further impact can be applied.

That is, on the surface of the first rotor 32a, not only the crushed object riding on the flow of the rotating vortex causes a mere collision, but also the impact force due to the protrusion of the sub-breaker 44a on which the rotational force (centrifugal force) acts is applied. Can be added. The details of the structure of the breaker portion 4A will be described later in FIGS. 17 to 19.

FIG. 4 is an explanatory view showing a particle size adjusting mechanism in the crushing chamber 30a viewed from the direction of the arrow I-I of the rotary crusher 1A shown in FIG. FIG. 5 shows the first particle size adjustment distance in the crushing chamber 30a of the rotary crusher 1A shown in FIG. 4A. FIG. 6 shows the second particle size adjustment distance in the crushing chamber 30a of the rotary crusher 1A shown in FIG. 4 (b).

In particular, FIG. 5 (a) is a front perspective view showing the inside of the crushing chamber 30a seen from the direction of the arrow III-III shown in FIG. 4 (a), and FIG. 5 (b) is a front perspective view of FIG. 4 (a). It is an enlarged view of the inner wall liner 27a corresponding to the position of the line of sight of arrow III-III. 6 (a) is a front perspective view showing the inside of the crushing chamber 30a seen from the direction of the IV-IV arrow line of sight shown in FIG. 4 (b), and FIG. 6 (b) is a front perspective view of FIG. 4 (b). It is an enlarged view of the inner wall liner 27a corresponding to the IV-IV arrow line-of-sight position.

For example, in the final crushing process of the crushed object in the casing 2A, the gap between the second rotor 33a shown in FIGS. 3 to 6 and the choke ring 276a of the inner wall liner 27a determines, for example, the average particle size of the crushed material. It contributes to the.

Here, for example, the surrounding shape of the peripheral wall of the casing 2A shown in FIG. 4 is a polygonal shape on the cross-sectional side of the vertical axis center of the rotation axis 31a (relative to the cross section with respect to the vertical direction along the vertical direction). Corresponding to the surrounding shape of the peripheral wall of the casing 2A, the end face side shape of the choke ring 276a that determines the gap between the choke ring 276a of the inner wall liner 27a and the outer peripheral side of the second rotor 33a is processed.

In the examples shown in FIGS. 4A and 4B, the surrounding shape of the peripheral wall of the casing 2A is a regular octagonal shape on the cross-sectional side of the vertical axis center of the rotating shaft 31a. In the corresponding particle size adjusting liner, eight choke rings 276a are arranged in a ring shape together with the triangular plate member 201a on the outer peripheral side of the second rotor 33a, and the outer peripheral side of the rotor 33a is surrounded by the second rotor 33a. A particle size adjusting gap can be provided between the outer peripheral side and the end face side of the choke ring 276a.

In the particle size adjusting mechanism of the rotary crusher 1A of the present embodiment, as shown in FIGS. 4 to 6, the gap between the second rotor 33a in the crushing chamber 30a and the choke ring 276a of the inner wall liner 27a (particle size adjusting gap). By adjusting dk # 1 to dk # 2), the average particle size of the crushed material in the final crushing process can be adjusted. In the adjusted particle size adjusting gaps dk # 1 to dk # 2, crushed material having a particle size that can pass through the gaps can be discharged to the discharge port 211a of the casing 2A.

Specifically, as shown in FIGS. 7 to 16 described later, a particle size adjusting mechanism is provided in the inner wall liner 27a of the peripheral walls provided in the crushing chamber frame frame 210a of the casing 2A. In particular, the inner wall liner 27a has a configuration (also referred to as a particle size adjusting liner) including a substantially L-shaped liner material 271a, a choke ring 276a, and the like. A long hole for inserting a fixing bolt 278a for mounting and fixing the choke ring 276a in the short side portion (referred to as the L-shaped hook portion 274a) of the substantially L-shaped liner material 271a. 275a is provided.

The fixing bolt 278a is inserted into the elongated hole 275a provided in the L-shaped hook portion 274a of the liner material 271a and the bolt insertion hole 277a provided in the choke ring 276a, and the inserted fixing bolt 278a is a nut. It is fixed by 279a.

The substantially L-shaped inner wall liner 27a is a liner for adjusting the particle size. As shown in FIGS. 5 and 6, the inner wall liner 27a is arranged and attached in a ring shape together with the triangular plate member 201a around the outer circumference of the disk of the second rotor 33a in the crushing chamber 30a.

As shown in FIGS. 4 to 6, the triangular plate material 201a is provided with bolt fixing holes (screw holes, etc.) in the space where the choke ring 276a is not placed in the L-shaped hook portion 274a of the liner material 271a. Bolted into space. The triangular plate member 201a is arranged so as to sandwich the choke ring 276a from both sides with the substantially triangular apex facing the vertical axis center of the rotation axis 31a. As a result, the choke ring 276a can be easily slid along both sides of the apex of the triangular plate member 201a. In FIGS. 11 to 16 described later, the bolt fixing holes for fixing the triangular plate member 201a are not shown.

As described above, the choke ring 276a can be slid and moved according to the fixing position of the fixing bolt 278a in the elongated hole 275a of the inner wall liner 27a as shown in FIGS. 4 to 6 showing the adjusted state. The adjustment gap can be adjusted as in dk # 1 to dk # 2.

FIG. 7 is an external view showing a door type structure in the crushing chamber 30a of the rotary crusher 1A of the embodiment. Further, FIG. 8 is an external view of the inside of the crushing chamber 30a during the door opening operation in the crushing chamber 30a of the rotary crusher 1A of the embodiment.

As shown in FIGS. 7 and 8, a flange on the bottom surface side of the crushing chamber frame frame 210a is attached to the upper surface side of the gantry frame 51a. Further, the outer wall liners 21a and 25a and the inner wall liners 26a, 27a and 28a are attached to the crushing chamber frame frame 210a and arranged on the radial outer peripheral side of the plurality of first rotors 32a and the second rotor 33a. It constitutes the peripheral wall of the casing 2A. The door 20a having a door-type structure that can be opened and closed is provided by the outer wall liner 21a on the outer wall side and the inner wall liners 26a, 27a, and 28a attached to the inner wall side of the outer wall liner 21a.

In the door type structure, as shown in FIGS. 7 and 8, a cylinder 23a for opening and closing the door 20a is provided in the casing 2A, and the casing 2A is first from the concentric tubular concentric direction with the cylinder 23a as an axis. The rotor 32a and the second rotor 33a have an opening / closing mechanism that opens toward the outer peripheral side in the radial direction and closes toward the central side of the vertical axis.

For example, the crushing chamber frame 210a shown in FIGS. 7 and 8 has a structure in which the cylinder 23a of the door 20a can be fitted into the cylinder bearing, and the cylinder 23a can be attached to and removed from the cylinder bearing. ..

In the casing 2A, in order to fix the door 20a in a closed state when the device is operating or the like, the door 20a is provided with a door lock portion 24a including a door fixing bracket 241a and a door fixing bolt 242a shown in FIG. It will be provided. As shown in FIGS. 7 and 8, the door lock portion 24a secures the door 20a by tightening the door fixing bolt 242a provided on the crushing chamber frame frame 210a to the key-shaped portion of the door fixing bracket 241a. It can be kept closed. Further, when the rotary crusher 1A is not in operation and the parts are replaced, the door 20a can be easily opened by loosening the door fixing bolt 242a with a tool or the like.

For example, the surrounding shape of the peripheral wall of the casing 2A shown in FIG. 4 is a polygonal shape on the cross-sectional side of the vertical axis center of the rotation axis 31a (relative to the cross section with respect to the vertical direction along the vertical direction). As shown in FIGS. 7 and 8, a cylinder is provided on the outer wall liner 25a side of the peripheral wall corresponding to one side of the polygonal shape on the peripheral wall of the casing 2A, and the peripheral wall corresponding to the other side facing the one side is provided. A lock mechanism (for example, a door lock portion 24a) for locking the door 20a is provided on the outer wall liner 25a side.

Further, the outer wall liner 21a of the peripheral wall corresponding to the side of the polygonal door 20a and the inner wall liners 26a, 27a and 28a have a structure that can be opened and closed as shown in FIGS. 7 and 8. Further, as shown in FIGS. 4 to 6, some of the triangular plate members 201a are bolted so that the door 20a can be opened and closed when the liner member 271a is bolted at the L-shaped hook portion 274a. ..

In the casing 2A, due to the door type structure as described above, the particle size adjustment gap dk # provided between the radial outer peripheral side of the second rotor 33a and the choke ring 276a of the inner wall liner 27a with the door 20a open. 1 to dk # 2 can be easily adjusted.

In the rotary crusher 1A of the present embodiment, the polygonal shape on the peripheral wall of the casing 2A is an octagonal shape as shown in FIGS. 4 to 8. In addition to this, for example, a hexagonal shape or a decagonal shape is also possible, but in terms of the structure / strength of the casing 2A, the particle size adjusting mechanism, the structure of the door 20a of the door type structure, cost, maintenance, etc. , Preferably a regular octagonal shape.

FIG. 9 is a structural diagram showing the structure of the inner wall liners 26a to 28a shown in FIG. 8 and the like. In particular, FIG. 9A is a side perspective view of the inner wall liners 26a to 28a attached to the outer wall liner 21a on the peripheral wall of the casing 2A as viewed from the vertical direction. Further, FIG. 9B is a side perspective view of the inner wall liners 26a to 28a before the inner wall liner fixing bolt 22a is penetrated, and FIG. 9C is a front view thereof.

Further, FIG. 10 shows a structural diagram showing the structure of the upper inner wall liner 26a shown in FIG. 9, and FIGS. 11 and 12 show a structure showing the structure of the inner wall liner 27a having the middle choke ring 276a shown in FIG. Is shown. 13 (a) to 13 (c) are cross-sectional views showing a cross section in the direction of the arrow line of sight shown in FIG. 12 (a).

The inner wall liners 26a to 28a are fixed to the outer wall liners 21a and 25a by the inner wall liner fixing bolts 22a inserted into the bolt insertion holes of the outer wall liners 21a and 25a. For example, the inner wall liner 26a shown in FIG. 9 is used on the upper side of the inner wall liners constituting the peripheral wall of the casing 2A. Similarly, the inner wall liner 27a is used on the middle stage side of the inner wall liners constituting the peripheral wall of the casing 2A. Further, the inner wall liner 28a is used on the lower side of the inner wall liner constituting the peripheral wall of the casing 2A.

In the inner wall liner 26a shown in FIG. 10, the inner wall convex portion 261a is provided on a flat steel material. The inner wall convex portion 261a is provided with an inner wall bolt insertion hole 262a in the plate thickness direction. An inner wall liner fixing bolt 22a is inserted into the inner wall bolt insertion hole 262a, and further, the inner wall liner 26a is inserted into the bolt insertion hole of the outer wall liner 21a or 25a and fastened with a nut, whereby the inner wall liner 26a is fixed to the outer wall liner 21a or 25a. To.

In the example of the inner wall liner 28a shown in FIG. 9, although the height in the vertical direction of the peripheral wall is different from that of the inner wall liner 26a shown in FIG. 9 (for example, the inner wall liner having a small height), it is basically the same. Structure.

Further, the inner wall liners 26b to 28b shown in FIG. 9 are examples in which overlay 29b is applied on the inner peripheral wall surface of the inner wall liners 26a to 28a by welding or the like. For example, the overlay 29b is overlaid welded along a part of the inner peripheral wall surface of the inner wall liners 26b to 28b so as to have an uneven shape. With the overlay 29b, when the crushed material collides with the inner peripheral wall surface of the inner wall liners 26b to 28b, the degree of wear of the wall surface of the inner wall liner itself can be suppressed, and the crushed material also has an uneven shape. It can be made easier to crush when it collides with the inner peripheral wall surface.

Here, FIG. 13 (a) is a cross-sectional view showing a cross section in the direction of the VV arrow line of sight shown in FIG. 12 (a), and FIG. 13 (b) is a cross-sectional view showing the direction of the VI-VI arrow line of sight shown in FIG. 12 (a). FIG. 13 (c) and FIG. 13 (c) are cross-sectional views showing a cross section in the direction of the arrow of VII-VII shown in FIG. 12 (a). Further, FIG. 14 is a structural diagram showing the structure of only the liner material 271a shown in FIGS. 11 and 12. Further, FIG. 15 is a structural diagram showing the structure of the choke ring 276a shown in FIGS. 11 and 12.

The inner wall liner 27a shown in FIGS. 11 to 13 includes a substantially L-shaped liner material 271a shown in FIG. 14, a choke ring 276a shown in FIG. 15, and the like. The L-shaped hook portion 274a of the substantially L-shaped liner material 271a is provided with an elongated hole 275a for inserting a fixing bolt 278a for mounting and fixing the choke ring 276a.

Before explaining FIGS. 11 to 13, FIGS. 14 and 15 will be described. Here, regarding the liner material 271a, FIG. 14 (a) is a top view, FIG. 14 (b) is a front view, FIG. 14 (c) is a right side view, and FIG. 14 (d) is a bottom view and FIG. 14 ( e) shows a rear view. Regarding the choke ring 276a, FIG. 15 (a) is a perspective view, FIG. 15 (b) is a top view, FIG. 15 (c) is a front view, FIG. 15 (d) is a right side view, and FIG. 15 (e) is a right side view. The bottom view and FIG. 15 (f) show a rear view.

The liner material 271a shown in FIGS. 14 (a) to 14 (e) is formed in a so-called L-shape in the side line-of-sight direction shown in FIG. 14 (c). The liner material 271a has an inner wall convex portion 272a, an inner wall bolt insertion hole 273a, an L-shaped hook portion 274a, and an elongated hole 275a.

The inner wall convex portion 272a is a convex portion formed on the inner peripheral wall surface side, which is formed in the liner material 271a shown in FIG. 14 in a cross-sectional shape as shown in FIGS. 13 (a) to 13 (c). The inner wall bolt insertion hole 273a is formed in the liner material 271a shown in FIG. 14 in a cross-sectional shape as shown in FIGS. 13 (a) to 13 (c). The inner wall bolt insertion hole 273a allows the inner wall liner fixing bolt 22a shown in FIG. 3 or the like to be inserted so that the inner wall liner 27a can be fixed to the outer wall liners 21a and 25a.

The L-shaped hook portion 274a is formed in the liner material 271a shown in FIG. 14 in a shape on which the choke ring 276a shown in FIG. 15 can be placed. The elongated hole 275a slides along the elongated hole diameter in the liner material 271a shown in FIG. 14 in a state where the fixing bolt 278a and the nut 279a shown in FIG. 13 and the like are loosened in the plate thickness direction of the L-shaped hook portion 274a. It is formed so that it can be moved.

The choke ring 276a shown in FIGS. 15A to 15F is placed on the L-shaped hook portion 274a of the liner material 271a shown in FIG. 14, and the fixing bolt 278a is inserted into the bolt insertion hole 277a to form a liner. It is fixed to the material 271a. As shown in FIG. 15, the bolt insertion hole 277a is formed in a fitting type shape in which the bolt head of the fixing bolt 278a does not protrude.

With the structure of the liner material 271a and the choke ring 276a as described above, the inner wall liner 27a shown in FIGS. 11 to 13 can be formed. As a result, as shown in FIGS. 11 to 13, in the inner wall liner 27a, the elongated hole 275a provided in the L-shaped hook portion 274a of the liner material 271a and the bolt insertion hole 277a provided in the choke ring 276a are formed. The fixing bolt 278a is inserted, and the inserted fixing bolt 278a is fixed by the nut 279a.

FIG. 16 is a diagram showing adjustment positions of the choke ring 276a corresponding to the first and second particle size adjustment distances in the crushing chamber 30a shown in FIGS. 5 and 6. For example, FIGS. 16 (a) and 16 (b) are adjustment positions (before sliding) of the choke ring 276a in the particle size adjustment gap dk # 1 shown in FIGS. 4 (a) and 5 (c). And (d) are the adjustment positions (after sliding) of the choke ring 276a in the particle size adjustment gap dk # 2 shown in FIGS. 4 (b) and 6.

At the adjustment position of the first particle size adjustment distance shown in FIGS. 16A and 16B, the choke ring 276a is attached to the liner material 271a in the inner wall liner 27a so that the particle size adjustment gap dk # 1 has the largest gap interval. Is placed, and the choke ring 276a is fixed by the fixing bolt 278a and the nut 279a.

At the adjustment position of the second particle size adjustment distance shown in FIGS. 16C and 16D, the choke ring 276a is formed on the liner material 271a in the inner wall liner 27a so that the particle size adjustment gap dk # 2 has the smallest gap interval. Is placed, and the choke ring 276a is fixed by the fixing bolt 278a and the nut 279a.

The inner wall liner 27a is provided with an elongated hole 275a for mounting the choke ring 276a on the L-shaped hook portion 274a and fixing it with bolts. A fixing bolt 278a is inserted into the elongated hole 275a of the inner wall liner 27a and the bolt insertion hole 277a of the choke ring 276a, and the choke ring 276a is fixed to the L-shaped hook portion 274a of the inner wall liner 27a with a nut 279a. can do.

As described above, as shown in FIG. 16, the fixing bolt 278a can be slid along the long hole diameter of the long hole 275a of the inner wall liner 27a, so that the mounting position of the choke ring 276a can be slidably moved. At the same time, as shown in FIG. 4, the particle size adjusting gaps dk # 1 to dk # 2 provided between the radial outer peripheral side of the second rotor 33a and the choke ring 276a can be adjusted.

With the particle size adjusting mechanism as described above, as shown in FIGS. 4 to 6 and 16, the gap between the second rotor 33a in the crushing chamber 30a and the choke ring 276a of the inner wall liner 27a (particle size adjusting gap). By adjusting dk # 1 to dk # 2), the average particle size of the crushed material in the final crushing process can be adjusted.

With the structure as described above, in the rotary crusher 1A of the present embodiment, crushing treatment from a crushed material having a large particle size to a crushed material having a finer particle size (for comparison, from a crushed material having a medium particle size). , Crushing treatment to a small amount of crushed material) can be realized efficiently.

An example of the detailed structure of the breaker portion 4A shown in FIG. 3 is shown in FIGS. 17 to 19. Specifically, FIG. 17 is a diagram showing the structure of the sub-breaker 44a shown in FIG. In particular, FIG. 17A is a top view taken from the direction of the arrow VIII-VIII shown in FIG. 17B. FIG. 17B is a front view showing an outline of the structure of the rotating shaft 31a, the first rotor 32a, the second rotor 33a, the third rotor 38a, and the sub-breaker 44a.

18A and 18B are views showing the structure of the breaker 42a shown in FIG. 3, FIG. 18A is a top view of the breaker 42a, FIG. 18B is a front view of the breaker 42a, and FIG. 18C is a front view of the breaker 42a. The bottom view of the breaker 42a is shown. Further, FIG. 19 is a diagram showing a combined structure of the breaker 42a and the sub-breaker 44a as viewed from the direction of the arrow II-II of the rotary crusher 1A shown in FIG. 3, and FIG. 19 (a) is an upper surface of the combined structure. FIG. 19B shows a perspective view of the combined structure.

In the breaker section 4A shown in FIG. 3, in addition to the breaker 42a, the disk of the first rotor 32a arranged at the uppermost stage of the disk-shaped rotors among the plurality of rotors in the crushing chamber 30a. It is a structure including a sub-breaker 44a that forms a substantially cylindrical protrusion provided on the upper surface side of the shape.

As shown in FIGS. 17A and 17B, the rotation shaft 31a penetrates the plurality of rotors (substantially rectangular rotor 41a, first rotor 32a, second rotor 33a, third rotor 38a). A rotating shaft through hole 411a is provided. Further, since these plurality of rotors are pivotally supported by the rotating shaft 31a, rotor columns 413a are provided on the plurality of rotors and the rotating shaft 31a.

<Circuit breaker>
As shown in FIGS. 18 and 19, the breaker 42a is arranged on the upper side of the circular first rotor 32a, and is formed so as to extend in the radial direction in a blade plate shape about the rotation shaft 31a. The circuit breakers 421a and 422a and the breaker arms 421a and 422a are provided with breaker arms 425a and 426a provided on the convex ridges in the left-right direction.

For example, the breaker arms 421a and 422a shown in FIGS. 18 and 19 are provided in a blade plate shape in both directions of 180 degrees with respect to the rotation shaft 31a and are pivotally supported by the rotation shaft 31a. The breaker arm 422a is arranged adjacent to the rotation shaft 31a in the vertical direction so that the rotation trajectories do not overlap.

Further, the breaker protrusions 423a and 424a are provided so as to have a protrusion shape that protrudes upward on the upper end side of the breaker arms 421a and 422a. As shown in FIGS. 18 and 19, the breaker liner 425a is a convex ridge attached to the breaker arm 421a in the left-right direction. Similarly, the breaker liner 426a is a convex ridge attached to the breaker arm 422a in the left-right direction, as shown in FIGS. 18 and 19.

As shown in FIGS. 3 and 17B, the substantially rectangular rotor 41a is a rotor arranged at the uppermost stage among the plurality of rotors in the crushing chamber 30a. The substantially rectangular rotor 41a is a non-disc-shaped rotor as shown in FIGS. 17 and 19. Further, the substantially rectangular rotor 41a allows a large-shaped crushing object (including the crushed object) to pass through in the initial crushing treatment step of the crushing object to be put into the crushing chamber 30a. As shown in FIG. 19, it is formed in a non-disk shape and a substantially rectangular shape.

In the breaker 42a, the rotating shaft 31a penetrates through the rotating shaft head hole 427a shown in FIG. 18, and bolts, pins, etc. corresponding to each of the breaker upper retaining hole 428a and the breaker lower retaining hole 429a shown in FIG. Therefore, it is attached to the rotating shaft 31a and the substantially rectangular rotor 41a.

<Sub-breaker>
In the sub-breaker 44a, as shown in FIGS. 17 and 19, a cylindrical ridge portion 43a that protrudes in a cylindrical shape is provided on the disk-shaped upper surface side of the first rotor 32a. The cylindrical raised portion 43a is provided with a pin through hole 431a through which the sub-breaker pin 312a can penetrate, and the sub-breaker pin 312a is penetrated through the pin through hole 431a.

Further, the cylindrical ridge portion 43a is covered with the head of the sub-breaker pin 312a through which two substantially semi-cylindrical semi-cylindrical members 441a covering the half region thereof are covered, and the bolt 443a is a sub-breaker. The head of the pin 312a and the screw hole 432a of the semi-cylindrical member 441a are screwed and fixed.

As shown in FIGS. 17 and 19, the sub-breaker 44a has a protrusion including the sub-breaker protrusion 442a formed by fixing the two semi-cylindrical members 441a over the head of the sub-breaker pin 312a. Has been done. Further, the sub-breaker protrusion 442a is formed in a structure that further protrudes on the upper side of the cylindrical portion that protrudes substantially cylindrically on the disk-shaped upper surface side of the first rotor 32a.

The sub-breaker pin 312a shown in FIGS. 3 and 17 (b) is a pin (cylindrical axis) penetrating through the hammers 35a and 37a shown in FIG. Through the pin through hole 431a provided in the first rotor 32a and the pin through hole 331a provided in the second rotor 33a shown in (a) and (b), the first rotor 32a is provided. It is fixed by the sub-breaker 44a.

The hammer pin 311a shown in FIG. 3 is a pin (cylindrical axis) penetrating through the hammers 34a and 36a shown in FIG. 3 and the like, and penetrates through these hammers and is shown in FIG. 17 (b). , Penetrates the pin through hole 322a provided in the first rotor 32a and the pin through hole 332a provided in the second rotor 33a, and is fixed by the pin retaining hole 412a provided in the substantially rectangular rotor 41a. ..

In the structure of the sub-breaker 44a, as shown in FIGS. 17 and 19, the head of the sub-breaker pin 312a can be covered by the two semi-cylindrical members 441a. For example, when the head of the breaker pin is projected on the upper surface of the first rotor 32a, the head of the breaker pin is deformed or crushed due to a collision of crushed materials during operation or the like. In such a state, the work of removing the breaker pin from the pin through hole 431a and the pin through hole 331a of each rotor will be hindered.

By providing the sub-breaker 44a in the first rotor 32a, not only the head of the sub-breaker pin 312a can be protected by the two semi-cylindrical members 441a, but also the crushing process as described below can be realized.

In the sub-breaker 44a, the rotation trajectories of the plurality of protrusions overlap with respect to the rotation shaft 31a. This has the following effects in combination with a structure in which the rotation trajectories do not overlap with respect to the rotation shaft 31a in both wings of the breaker 42a shown in FIGS. 18 and 19.

For example, due to the structure in which the rotation trajectories of the breaker 42a do not overlap, a screw-shaped rotation vortex is formed in the crushing process. The sub-breaker 44a provided on the surface of the first rotor 32a where the rotation trajectories overlap with respect to the screw-shaped rotary vortex may further apply an impact to the crushed object riding on the flow of the rotary vortex. it can. That is, on the surface of the first rotor 32a, not only the crushed object riding on the flow of the rotating vortex causes a mere collision, but also the impact force due to the protrusion of the sub-breaker 44a on which the rotational force (centrifugal force) acts is applied. Can be added.

Further, when the crushed material is stagnant, it is possible to more reliably and efficiently eliminate the clogging with the structure due to the crushing process by changing the rotation direction. In addition, it is possible to rotate clockwise and counterclockwise, and it is possible to operate the liner inner wall surface, the rotor, and the like in the wear direction so as not to be biased as much as possible.

Further, in the rotary crusher 1A of the present embodiment, due to the door structure of the casing 2A, the door 20a is opened at the time of maintenance / adjustment or the like, and the choke ring 276a of the inner wall liner 27a is formed only inside the crushing chamber 30a in the casing 2A. It can be slidably moved to adjust the particle size adjustment gap. Further, the door structure of the casing 2A and the structure of the inner wall liner 27a and the like make it easy to remove crushed dust such as metal and resin, lumps mixed with oil and the like, and facilitate maintenance and investigation work such as cleaning and inspection work. be able to.

As described above, according to the rotary crusher of the present embodiment, it is possible to have a particle size adjusting mechanism that is easy to maintain and adjust.

[Other Embodiments]
Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. Further, for example, some features of the embodiment may be combined. Furthermore, this embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. This embodiment and its modifications are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1A ... rotary crusher, 2A ... casing, 3A ... rotary crusher, 4A ... breaker section, 5A ... crusher mount, 6A ... power section, 11a ... loading case section, 12a ... upper casing, 111a ... loading port, 20a ... Door, 21a, 25a ... Outer wall liner, 22a ... Inner wall liner fixing bolt, 23a ... Cylinder, 24a ... Door lock, 26a, 26b, 27a, 27b, 28a, 28b ... Inner wall liner, 29b ... Overlay, 201a ... Triangle Plate material, 210a ... Crushing chamber frame frame, 211a ... Discharge port, 241a ... Door fixing bracket, 242a ... Door fixing bolt, 271a ... Liner material, 261a, 272a ... Inner wall convex part, 262a, 273a ... Inner wall bolt insertion hole, 274a ... L-shaped hook, 275a ... long hole, 276a ... choke ring, 277a ... bolt insertion hole, 278a ... fixing bolt, 279a ... nut, 30a ... crushing chamber, 31a ... rotating shaft, 32a ... first rotor , 33a ... Second rotor, 34a, 35a, 36a, 37a ... Hammer, 38a ... Third rotor, 311a ... Hammer pin, 312a ... Subbreaker pin, 322a, 331a, 332a ... Pin through hole, 41a ... Approximately rectangular Rotor, 42a ... Breaker, 43a ... Cylindrical ridge, 44a ... Sub-breaker, 411a ... Rotating shaft through hole, 412a ... Pin retaining hole, 413a ... Rotor support, 421a, 422a ... Breaker arm, 423a, 424a ... Breaker protrusion 425a, 426a ... Breaker liner, 427a ... Rotating shaft head hole, 428a ... Breaker upper retaining hole, 429a ... Breaker lower retaining hole, 431a ... Pin through hole, 432a ... Screw hole, 441a ... Semi-cylindrical member, 442a ... Sub-breaker protrusion, 443a ... Bolt, 51a ... Mount frame, 52a ... Discharge pipe port, 53a ... Crusher side pulley, 511a ... Crusher side leg, 61a ... Electric unit, 62a ... Power unit mount, 63a ... Power side Pulley, 64a ... V-belt, 611a ... Power side leg

Claims (4)

A rotary crusher for crushing objects to be crushed.
A plurality of rotors equipped with a rotation mechanism, which are pivotally supported by a rotation axis that rotates around the center of the vertical axis along the vertical direction,
Casing arranged concentrically with the vertical axis center on the radial outer peripheral side of the plurality of rotors,
A crushing chamber provided in the casing and
On the rotating shaft for crushing the crushing object to be put into the crushing chamber, which is arranged above the disc-shaped first rotor arranged in the crushing chamber among the plurality of rotors. With a shaft-supported breaker,
A hammer rotatably or oscillatingly arranged between adjacent rotors of any of the plurality of rotors for striking the crushing object passing through the crushing chamber.
Among the plurality of rotors, a disk-shaped second rotor arranged on the lower side of the first rotor in the crushing chamber is arranged concentrically with the vertical axis center on the radial outer peripheral side. The concentric arrangement is provided with a choke ring that is arranged and attached in a ring shape together with a plurality of triangular plates.
The casing has a structure including an outer wall liner and an inner wall liner.
The outer wall liner and the inner wall liner constitute a peripheral wall of the casing arranged concentrically with the vertical axis center on the radial outer peripheral side of the plurality of rotors, and the peripheral wall is provided with an openable / closable door. The door type structure to have is provided,
The inner wall liner facing the second rotor is provided with an elongated hole for mounting the choke ring on the short side portion of a substantially L-shaped liner material and fixing it with a fixing bolt. When the fixing bolt is inserted into the elongated hole and the bolt insertion hole provided in the choke ring and fixed with a nut, the fixing bolt and the nut are fixed along the elongated hole diameter of the elongated hole. The position can be slid and the placement position of the choke ring can be slid to the short side portion of the liner material, and is provided between the radial outer peripheral side of the second rotor and the choke ring. Grain size adjustment A rotary crusher characterized by being able to adjust the clearance. In the door type structure, a cylinder for opening and closing the door is provided in the casing, and the cylinder is used as an axis to open the door from the closed state of the casing to the radial outer peripheral side of the second rotor. The rotary crusher according to claim 1, further comprising an opening / closing mechanism that closes the casing from the open state of the door toward the center of the vertical axis. The surrounding shape of the peripheral wall of the casing is a polygonal shape on the cross-sectional side of the vertical axis.
The cylinder is provided on the outer wall liner side of the peripheral wall corresponding to one side of the polygonal shape, and the door is locked on the outer wall liner side of the peripheral wall corresponding to the other side facing the one side. A lock mechanism is provided to
2. The outer wall liner and the inner wall liner of the peripheral wall corresponding to the side other than the one side of the polygonal shape and the other side facing the one side correspond to the peripheral wall of the door. The rotary crusher described in. A sub-breaker for forming a substantially cylindrical protrusion provided on the disk-shaped upper surface side of the first rotor is further provided.
The breaker is arranged on the upper side of the first rotor, and has a breaker arm formed so as to extend in the radial direction in a blade plate shape about the rotation axis, and the breaker arm is convex in the left-right direction. Consists of a breaker provided on the ridge,
A plurality of the breakers are arranged adjacent to each other in the vertical direction with respect to the rotation axis so that the rotation trajectories do not overlap with each other.
In the sub-breaker, a cylindrically raised portion is provided on the upper surface side of the disk shape of the first rotor, and the cylindrically raised portion is provided with a pin through hole through which the sub-breaker pin can penetrate. The sub-breaker pin is penetrated through the pin through hole, and two substantially semi-cylindrical semi-cylindrical members that cover a half area of the cylindrical ridge portion are combined to form the head of the sub-breaker pin. The rotation according to any one of claims 1 to 3, wherein the protrusion is formed by being covered and fixed to the portion, and the rotation trajectories of the plurality of protrusions overlap. Crushing machine.

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