JPH06246178A - Chain percussion type crushing machine - Google Patents

Abstract

PURPOSE:To provide the chain percussion type crushing machine having enhanced crushing efficiency and machine durability. CONSTITUTION:The central part of a crushing container 3 is perpendicularly provided with a revolving shaft 7 which revolves at a high speed. Plural percussion chains 11 are radially mounted in multiple stages to this revolving shaft. Swiveling percussion zones of multiple stages are formed by the respective stepped percussion chain groups to be swiveled at a high speed by the centrifugal force to be generated by high-speed revolutions of the revolving shaft. Many induction guide plates 15 having slopes upgrading toward the swiveling direction of the percussion chains so as to return the materials which are to be crushed and are splashed toward the inside wall of the peripheral wall part 4 of the crushing container 3 to the swiveling percussion zones are mounted on this inside wall surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a percussion crusher,
As this impact type crusher, a chain impact type crusher is provided which crushes an object to be crushed by the impact of a chain that is rotated at high speed.

[0002]

2. Description of the Related Art Although various kinds of mechanisms exist in a crusher, several steps are required to make a large object to be crushed into fine particles. As the impact type crusher, for example, a hammer mill that crushes the object to be crushed by the impact action of a rotary blade is used, but this hammer mill may damage the rotary blade when the object to be crushed is hard. Therefore, there is a problem in the durability of the rotary blade.

[0003]

SUMMARY OF THE INVENTION A first object of the present invention is to provide a striking type crusher for crushing an object to be crushed by a hitting action, so as to crush the object to be crushed by a hitting action of a chain which is swirled at high speed. The present invention provides a chain impact type crusher.

Further, the above chain striking type crusher, which attempts to crush the object to be crushed by the striking action of the chain swung at high speed, has a multi-stage swirl striking zone formed by a plurality of striking chains swung at high speed. When the crushed object is put into the above from above, the crushed object falls downward due to its own weight and is crushed by being sequentially hit in the turning impact zone formed in multiple stages in this falling direction. One rotation of the striking chain that is swirled at high speed while the crushed object passes through the one-step swirl striking zone formed by the plurality of striking chains that swirl at high speed in relation to the rotation speed of the striking chain that swirls at high speed. Theoretically, the number of hits received by a single-step turning hit zone formed by a plurality of hitting chains that are turned at high speed is theoretically the same as the chain forming the single-step turning hit zone. Equal to the mounting number, in which take a hit only more times multiplied by the number of turning hitting zone configured multi-stage in the dropping direction of the object to be crushed. Also,
In the chain striking type crusher provided for the first purpose, the striking chain swung at high speed around the rotation axis receives a maximum tension by centrifugal force and is stretched in a swirling direction orthogonal to the rotation axis. The peripheral wall part made of steel plate with a radius longer than the length is used to prevent the crushed material from scattering outside the crushing container due to centrifugal force. Although it is possible to prevent scattering to the crusher, the centrifugal force of the chain that is swirled at high speed causes impact crushing, so the crushed object falls along the inner wall surface of the peripheral wall of the crushing container and the theoretical There is a drawback that the number of hits is greatly reduced without being hit by the number of hits. A second object of the present invention is to solve this drawback and to provide a chain striking type crusher in which the crushed object is subjected to a striking action of a theoretical number of times by a chain that is swirled at a high speed to enhance the crushing efficiency. is there.

A third object of the present invention is to enable further fragmentation of the material to be crushed in a chain smashing type crushing machine for crushing the material to be crushed by the impacting action of the chain swirled at high speed. It is to provide a chain impact type crusher.

Further, a chain impact type crusher which crushes an object to be crushed by the impact action of a chain swirled at a high speed,
The attachment portion of the chain to the rotating shaft is extremely worn due to long-term operation because of high contact pressure due to centrifugal force and impact of the chain. Therefore, in order to put this chain striking type crusher into practical use, it is necessary to reduce the wear of the chain attachment portion to the rotary shaft as much as possible. A fourth object of the present invention is to solve this problem. It is necessary to minimize the wear of the attachment portion of the rotary shaft and the chain, and thus to replace the attachment portion of the chain to the rotary shaft with a long life and to replace it frequently. (EN) Provided is a chain hitting type crusher having excellent durability.

Furthermore, the chain impact type crusher which is intended to crush the object to be crushed by the impact action of the chain rotated at high speed,
The number of hits increases more than the theoretical value, and the crushed object with a light mass is easily retained on the slewing hitting zone formed by a plurality of chains that are swung at high speed, and each crushed object is formed in multiple stages in the falling direction of the crushed object. Since it was difficult to continuously pass through the turning impact zone, there is a drawback that the processing capacity is significantly reduced and the power is overloaded. A fifth object of the present invention is to solve this drawback, and even if the object to be crushed has a light mass, the object to be crushed does not stay on the turning impact zone formed by a plurality of chains which are turned at high speed. It is an object of the present invention to provide a chain striking type crusher in which crushing efficiency is improved by continuously passing through each of the swirling striking zones formed in a multi-stage in the falling direction.

As described above, the object of the present invention is to provide a chain impact type crusher in which the object to be crushed is crushed by the impact action of the chain which is swung at high speed, and crushing as this chain impact type crusher. (EN) Provided is a chain impact type crusher which is highly practical and has improved efficiency and durability.

[0009]

In order to achieve the first object, the chain impact type crusher according to the present invention has an inlet for an object to be crushed in an upper part of a crushing container having a peripheral wall made of steel plate. Is provided at the lower part with an outlet for taking out the crushed object to be crushed, and a rotary shaft which is rotated at a high speed around the shaft center is vertically provided at the center of the crushing container, and the object to be crushed is hit on the rotary shaft. A plurality of striking chains that can be crushed are attached in a radial state in which the circumference of the rotating shaft is divided into several parts in the horizontal direction, and a plurality of striking chains attached in this radial state are arranged along the axial direction of the rotating shaft. Shafts of the rotating shaft by the multi-stage striking chain groups which are fastened in a state of being stretched in a direction orthogonal to the axial center direction of the rotating shaft by centrifugal force due to the high speed rotation of the rotating shaft. Characterized by forming a multi-step turning impact zone along the axial direction A.

Further, in order to achieve the second object, the chain striking type crusher of the present invention is scattered on the inner wall surface of the peripheral wall portion of the crushing container in the direction of the inner wall surface by the swirling centrifugal force of the striking chain. It is formed by a striking chain that is swung with a plurality of guide guide plates having inclined surfaces that rise in the swivel direction of the striking chain so that the object to be crushed can be returned from the position of the inner wall surface to the swirling striking zone in the axial center direction In addition, a large number are intermittently attached to the inner wall surface position of the peripheral wall portion corresponding to each of the multi-stage swivel striking zones along the swirl circumferential direction of the striking chain.

Further, in order to achieve the above-mentioned third object, in the chain striking type crusher of the present invention, the striking chain attached to the rotary shaft in a radial state in which the circumference of the rotary shaft is divided into several equal parts in the horizontal direction. Is attached to the rotary shaft with the mounting intervals of the respective striking chains being displaced from each other so as to be arranged at the center position between the striking chains attached to the next stage.

Further, in order to achieve the above-mentioned fourth object, in the chain striking type crusher of the present invention, each striking chain is attached to the rotary shaft by fixing the ring portion on the fixed end side of each striking chain to this ring portion. Characterized in that they are connected to independent supporting rods individually provided in correspondence with each other, and that the independent supporting rods are fitted to a support fitting fixed to the outer periphery of the rotary shaft with a slidable play gap provided. It is what

Further, in order to achieve the above fifth object, the chain impact type crusher of the present invention is provided with a rotary disk which is rotated about an axis at the lowermost part of the crushing container, and the rotary disk is attached to the rotary disk. It is characterized in that a scraping blade is provided which is capable of attracting the crushed crushed material downward and discharging it to the outside of the peripheral wall portion.

[0014]

When the object to be crushed is put into the input port of the chain striking type crusher of the present invention constructed as described above, the object to be crushed falls downward due to its own weight and has a multi-stage configuration in the direction of this drop. It is smashed by being sequentially hit in the turning hit zone formed by a plurality of hit chains that are turned at high speed. The crushed object thus thrown in is gradually crushed as it is successively dropped and passed from the upper slewing striking zone to the lower slewing striking zone, and at the same time, a high-speed swirling striking chain having a striking action is formed. The shape can be changed in response to a strong impact force against the crushed object, and it can be escaped by changing the shape against an unreasonable impact collision with the crushed object. It is possible to crush the material to be crushed without applying a heavy load.

Further, even if the object to be crushed is scattered toward the inner wall surface of the peripheral wall portion of the crushing container by the centrifugal force of the striking chain which is swirled at a high speed, it is formed by the striking chain swirled on the inner wall surface of the peripheral wall portion. By installing a large number of guide guide plates intermittently along the turning circumferential direction of the striking chain at the inner wall surface position of the peripheral wall portion corresponding to each of the multi-step turning striking zones, outside the turning striking zone. The scattered object to be shattered is returned from the position of the inner wall surface to the swirl striking zone in the direction of the rotation axis, and the object to be shattered is hit by the striking chain the theoretical number of times.

When the object to be crushed is put into the input port of the chain impact type crusher, the object to be crushed as described above is
As it is dropped and passed from the upper swing impact zone to the lower swing impact zone, it is gradually crushed. The plurality of striking chains forming these turning striking zones are displaced from each other so that the striking chains are arranged at the center positions between the striking chains attached to the next stage as described above. By mounting on the shaft, the gap of the striking chain that is swung at high speed with respect to the passage direction of the crushed object can be reduced, and the crushed object that passes through each swirl striking zone is easily subjected to the theoretical number of striking actions by the striking chain.

Further, in the chain striking type crusher of the present invention constructed as described above, when mounting each striking chain on the rotary shaft, the ring portion on the fixed end side of each striking chain corresponds to this ring portion, respectively. Independently, the independent support rods are connected to each other, and the independent support rods are fitted to the support fittings fixed to the outer periphery of the rotary shaft with a slidable play gap. In this way, one striking chain is connected to each independent independent support rod, and the independent support rod is provided with a slidable play gap to be fitted to the support metal fittings. As a result, the abrasion of the one side of the independent supporting rod is prevented, and the abrasion of the attachment portion between the rotating shaft and the chain can be minimized.

Further, the chain striking type crushing machine of the present invention constructed as described above is provided with a rotary plate which is rotated about an axis at the lowermost part of the crushing container, and is crushed by the rotary plate. Scraping blades are provided that can attract objects downward and discharge them to the outside of the peripheral wall. In this way, by providing the scraping blades that allow the crushed crushed objects to be guided downward and released to the outside of the peripheral wall, even a crushed object with a light mass can be swirled at high speed. It does not stay on the swirl striking zone formed by the chains and is continuously passed through each swirl striking zone formed in multiple stages in the falling direction of the crushed object.

[0019]

EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, a crushing container 3 is mounted on a base 1 via support legs 2.
To fix. This crushing container 3 is formed in a cylindrical shape having a peripheral wall portion 4 made of a steel plate, and an inlet 5 for the crushed object to be crushed at the upper part.
Is provided at the bottom with an outlet 6 for taking out the crushed object. At the center of the crushing container 3, a rotary shaft 7 which is rotated at a high speed around an axis is vertically installed via a bearing 8. The rotary shaft 7 is a rotary shaft 7 in which the driving force of a drive motor (not shown) is projected outside the crushing container 3 via a drive belt 9.
The drive pulley 10 rotatably supported at the lower end of the is driven to rotate. A plurality of striking chains 11 made of a ring chain having a high hardness by a special steel capable of striking an object to be crushed on the rotating shaft 7 in a radial state in which the circumference of the rotating shaft 7 is divided into several parts in the horizontal direction. Install. Further, a plurality of groups of striking chains 11 mounted in this radial state are mounted in multiple stages along the axial direction of the rotary shaft 7. The plurality of striking chains 11 attached to the rotating shaft 7 in a multi-step manner are arranged such that when the rotating shaft 7 is rotated at a high speed, the hanging chain 11 is suspended along the rotating shaft 7 from a state where the rotating shaft 7 is hung down along the rotating shaft 7 as shown in FIG. It is stretched in the direction orthogonal to the direction, and thereby forms a plurality of swing striking zones having the thickness of the striking chain 11 made of a ring type chain in the swing horizontal direction.

As shown in FIG. 2, the striking chain 11 mounted on the rotating shaft 7 in a radial state in which the circumference of the rotating shaft is divided into several equal parts in the horizontal direction is the striking chains 11 mounted at the next stage,
The striking chains 11 are mounted on the rotating shaft 7 with the mounting intervals thereof displaced from each other so that the striking chains 11 are arranged at the center positions.

As a means for attaching each striking chain 11 to the rotary shaft 7, as shown in FIG. 3, an independent support rod 13 provided individually corresponding to each striking chain 11 is provided on the outer circumference of the rotary shaft 7. The fixed support fitting 14 is fitted with a play gap that allows sliding, and the ring portions 12 on the fixed end side of the striking chains 11 are connected to the independent support rods 13.

The peripheral wall 4 made of steel plate of the cylindrical crushing container 3
Is a striking chain 11 that is swung about the rotating shaft 7 as a center and is formed into a circle or a polygon having a radius longer than the length stretched in the direction orthogonal to the axial direction of the rotating shaft 7 by centrifugal force. The centrifugal force of the chain 11 prevents the crushed material from scattering. The striking chain 11 of the striking chain 11 can be returned to the swirl striking zone in the axial center direction from the inner wall surface position to the crushed object scattered on the inner wall surface of the peripheral wall portion 4 by the swirling centrifugal force of the striking chain 11 toward the inner wall surface. A plurality of guide guide plates 15 having an inclined surface that rises in the turning direction are attached. A large number of the guide guide plates 15 are intermittently provided on the inner wall surface of the peripheral wall portion 4 corresponding to each of the multi-step turning striking zones formed by the turning striking chains 11 along the turning circumferential direction of the striking chains. Mounted.

The lowermost portion of the crushing container 3 is shown in FIGS.
As shown in FIG. 5, a rotary disc 16 is provided which is rotatably supported by the rotary shaft 7 and is rotated about this rotary shaft. At the upper surface of the rotary disc 16, a crushed object to be shattered and an outlet are taken out. A scraping blade 17 is provided which is pushed out to the outer peripheral wall portion 4 to be discharged to the outside. The scraping blade 18 provided on the lower surface of the rotating disk 16 pushes out the crushed material that has been crushed and dropped below the rotating disk 16 to the outlet 6.

[0024]

Since the chain impact type crusher of the present invention is configured as described above, it has the following effects. When the material to be crushed is put into the charging port, it falls downward due to the weight of the material to be crushed, and hits sequentially in the turning hitting zone formed by a plurality of high-speed turning hitting chains that are configured in multiple stages in this falling direction. Received and crushed. The crushed material thus thrown in is gradually crushed as it is dropped and passed from the upper slewing impact zone to the lower slewing impact zone. However, it is possible to make the particles finer with a single pass, and even when making the particles finer
Desired fine particles can be crushed by performing the passage treatment three times. Further, as described above, as it passes through each turning impact zone, it is gradually impacted and crushed, and the impact chain that rotates at high speed with impact action changes its shape with respect to a strong impact force against the crushed object. It is possible to change the shape of the crushing object to avoid smashing impact, and it is possible to crush the crushing object without applying a high undue load to the struck chain. Therefore, even if the object to be crushed is hard, there is no danger of damaging the striking chain, so that the durability of the striking chain can be enhanced.

Further, even if the object to be crushed is scattered toward the inner wall surface of the peripheral wall of the crushing container by the centrifugal force of the striking chain rotated at high speed, it is formed by the striking chain swung on the inner wall surface of the peripheral wall. By installing a large number of guide guide plates intermittently along the turning circumferential direction of the striking chain at the inner wall surface position of the peripheral wall portion corresponding to each of the multi-step turning striking zones, outside the turning striking zone. The scattered crushed objects are returned from this inner wall surface position to the turning impact zone in the direction of the rotation axis, and the crushed objects are subjected to the impact action of a theoretical number of impacts by the impact chain, thus significantly increasing the crushing efficiency. Can be increased.

When the object to be crushed is put into the input port of the chain impact type crusher, the object to be crushed as described above is
As it is dropped and passed from the upper swing impact zone to the lower swing impact zone, it is gradually crushed. The plurality of striking chains forming these turning striking zones are displaced from each other so that the striking chains are arranged at the center positions between the striking chains attached to the next stage as described above. By mounting on the shaft, the gap of the striking chain that is swung at high speed with respect to the passing direction of the crushed object can be reduced, and the crushed object that passes through each swivel striking zone is likely to be hit theoretically by the striking chain. It is possible to make the crushed material finer.

Further, one striking chain is connected to each independent independent support rod, and the independent support rod is provided with a playable gap so that the independent support rod is fitted to the support metal fittings. The degree of freedom is increased to prevent one-sided wear of the independent support rod, and the wear of the attachment part between the rotating shaft and the chain can be minimized, so the durability of the attachment part of the striking chain to the rotating shaft is high and independent support is possible. Since it is not necessary to replace the rods frequently, long-term continuous operation is possible and the processing capacity can be increased.

Further, by providing a scraping blade capable of attracting the crushed crushed objects downward and discharging them to the outside of the peripheral wall portion, even if the crushed objects having a light mass are swirled at a high speed. The crushed object with a light mass can be passed continuously through each slewing hitting zone formed in multiple stages in the falling direction of the crushed object without staying on the slewing hitting zone formed by the chain of Even if there is, the crushing efficiency can be maintained high.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view showing an entire chain hitting type crusher.

FIG. 2 is a cross-sectional plan view showing a mounting state of a striking chain.

FIG. 3 is an enlarged vertical sectional front view showing a mounting portion of a striking chain.

FIG. 4 is a cross-sectional plan view showing scraping blades provided on a rotary plate.

[Explanation of symbols]

 1 Base 2 Supporting Legs 3 Crushing Container 4 Circumferential Wall 5 Inlet 6 Outlet 7 Rotating Shaft 8 Bearing 9 Drive Belt 10 Drive Pulley 11 Strike Chain 12 Ring Part 13 Independent Support Rod 14 Supporting Metal Fitting 15 Guide Plate 16 Rotating Disc 17 scraping blades 18 scraping blades

Claims (5)

[Claims] 1. A crushing container having a peripheral wall made of a steel plate, an inlet for an object to be crushed is provided at an upper part, and an outlet for taking out the crushed object is provided at a lower part, and a shaft is provided at a central portion of the crushing container. A radial state in which a rotary shaft that rotates at high speed around the center is vertically installed, and a plurality of striking chains capable of striking the crushed object by hitting the rotary shaft are divided into several equal parts in the horizontal direction around the rotary shaft. And a plurality of striking chains mounted in this radiation state in multiple stages along the axial direction of the rotating shaft,
Multi-stage rotation along the axial direction of the rotary shaft by each multi-stage striking chain group that is rotated at high speed in a state of being stretched in a direction orthogonal to the axial direction of the rotary shaft by centrifugal force generated by the high-speed rotation of the rotary shaft. A chain striking type crusher characterized by forming a striking zone. 2. An object to be crushed, which is scattered on the inner wall surface of the peripheral wall portion of the crushing container in the direction of the inner wall surface by the turning centrifugal force of the hitting chain, is moved from the position of the inner wall surface to a turning hitting zone in the axial center direction. The inner wall surface position of the peripheral wall portion corresponding to each of the multi-stage swivel striking zones formed by the striking chains, in which a plurality of guide guide plates having an inclined surface that rises in the swirling direction of the striking chain so as to be able to return can be returned. 2. A large number of the striking chains are intermittently mounted along the turning circumferential direction of the striking chain.
Chain hitting type crusher described. 3. The striking chain attached to the rotating shaft in a radial state in which the circumference of the rotating shaft is divided into several parts in the horizontal direction is arranged at a center position between the striking chains attached to the next stage. 2. The chain striking type crusher according to claim 1, wherein the striking chains are mounted on the rotary shaft with the mounting intervals thereof being shifted from each other. 4. The attachment of each striking chain to the rotary shaft is performed by connecting a ring portion on the fixed end side of each striking chain to an independent support rod individually provided corresponding to each ring portion, 2. The chain impact type crusher according to claim 1, wherein the independent support rod is fitted into a support fitting fixedly attached to the outer periphery of the rotary shaft with a slidable play gap provided therebetween. 5. A rotary disc that rotates about an axis is provided at the lowermost portion of the crushing container, and the crushed object crushed by the rotary disc is guided downward and discharged to the outside of the peripheral wall. The chain impact type crusher according to claim 1, further comprising an enabling scraping blade.