JPH0952055A - Crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crusher which can surely crush a material such as rock by the constitution in which the end part of a swing-crushing wall opposite to a fixed crushing wall moves elliptically and is made maintenance-free by the large separation of a driving part such as a rotary shaft from a crushing part. SOLUTION: The rear end part of a swing-crushing wall 40 is extended to the other side of a transfer passage 20, and a longitudinal driving shaft 60 which is partly eccentric is installed in the rear end part, and a driving wheel 51 which is integrated with the shaft 60 is rotated by a driving device 50 installed on the other side of the transfer passage 20. One end of a holding rod 70 is connected swingably with a surface opposite to a fixed crushing wall 30 in the end part of the swing-crushing wall 40, the other end of the holding rod 70 is connected swingably with a holding frame 71 which is arranged position-adjustably to a base frame 10, and a spring means 80 for energizing the end part of the swing-crushing wall 40 always to the holding frame side 71 is set between the end part of the swing-crushing wall 40 and the base frame 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher, that is, a crusher for crushing rock to produce aggregates or crushing concrete waste to produce other materials such as aggregates. .

[0002]

2. Description of the Related Art This type of crusher has long been developed for use in mines. Crushers "are known. This conventional crusher has "a pair of jaws located above the conveyor and swinging relative to each other in the horizontal direction" according to the description of the "Claims for Utility Model Registration" in the above publication. However, if the pair of jaws (oscillating crushing walls) are configured to relatively swing, the number of driving parts is two, and the entire apparatus becomes complicated.

For this reason, for example, as shown in FIGS. 7 and 8, a fixed crushing wall is provided upright on one side of a conveying path for conveying crushed objects such as rocks and faces the fixed crushing wall. A crusher has been proposed in which one rocking crushing wall is provided and the rocking and the like sent through the transport path is crushed by the relative movement of the rocking crushing wall with respect to the fixed crushing wall.
However, in the crusher shown in FIGS. 7 and 8, particularly, as shown in FIG. 8, the rotating shaft at the rear end of the rocking crushing wall is supported by a so-called “spherical bearing”, and As shown in FIG. 7, the rotating shaft is located near the transportation path where crushed rock fragments and dust are rising, so that the maintenance must be performed frequently.

In order to reduce the need for maintenance on the rotating shaft, Japanese Patent Publication No.
There is a "jaw crusher" as disclosed in JP-A-8-93936. According to the claims of the above-mentioned publication, this crusher is, in particular, with respect to its swinging crushing wall, that is, "possible teeth", "movable teeth 3 are swingably supported by supporting rods 4 at their lower portions. The supporting rod is swung about a supporting point 4'provided on a holding frame 16 below the base frame, and the upper part of the movable tooth is a substantially eccentric portion around which the swing shaft 9 can be encircled. The first swing arm is provided with first and second swing arms 10 and 11 which are driven by a 61-shaped lever 8 and which move around the swing shaft in a fixed relationship with each other. 10
Is rotatably attached to the upper part of the movable tooth, and the second swing arm 11 is rotatably attached to the reciprocating hydraulic cylinder 12, so that the reciprocating movement of the hydraulic cylinder is the supporting rod and the lever. The movement of the teeth is limited by the circular movements of the two.
With such a crusher, the reciprocating motion of the hydraulic cylinder 12 is given to the possible teeth 3 by the lever 8, so that the possible teeth 3 have only a simple swinging motion, so that sufficient No crushing is expected.

On the other hand, when crushing is performed when the material to be crushed is, for example, concrete waste material,
In this crushing, if the aggregate can be completely separated from the concrete adhering to the aggregate, the aggregate can be reused, which is advantageous. In the current situation where concrete waste is increasing in recent years, and aggregates for constructing new concrete structures are becoming scarce,
It is very advantageous to be able to remove aggregate from concrete waste.

Therefore, the present inventors have conducted various studies on how to improve the actual condition of this type of crusher and make it more efficient, and as a result, the present invention has been completed. I did.

[0007]

SUMMARY OF THE INVENTION The present invention has been made based on the above circumstances, and the problem to be solved is that once installed, it will be used for many years. It is an object of the present invention to make this type of crusher so-called maintenance-free and to be able to reliably perform a crushing operation.

That is, the object of the invention according to claim 1 is to construct a crushed object such as rock by arranging the tip of the rocking crushing wall facing the fixed crushing wall to make a circular motion. (EN) Provided is a crusher capable of reliably performing crushing, and maintenance-free by largely separating a driving portion such as a rotating shaft from the crushing portion.

Further, an object of the invention according to claim 2 is that when the object to be crushed is a concrete waste material, the crushing can be performed reliably and the maintenance of the driving part can be made free. Moreover, it is to provide a crusher capable of removing concrete adhering to the crushed material after crushing.

[0010]

Means for Solving the Problems In order to solve the above problems, the means adopted by the invention according to claim 1 will be described with reference to the reference numerals used in the next embodiment. A conveyance path 20 provided substantially horizontally with respect to the base frame 10 for conveying the crushed material, a fixed crushing wall 30 erected parallel to this on one side in the vicinity of the exit of the conveyance path 20, and this fixed crushing A crusher 1 having a swinging and crushing wall 40 that is provided on the conveying path 20 so as to face the wall 30 and that is inclined so that its tip end is narrowed toward the vicinity of the exit of the conveying path 20.
00A, the rear end of the rocking and crushing wall 40 is moved to the transport path 20.
The drive shaft 60 extending in the other direction and provided with a longitudinally extending drive shaft 60 partially eccentric to the rear end thereof.
A driving wheel 51 integrated with the driving path 50 is rotatably driven by a driving device 50 provided on the other side of the conveying path 20, and a holding rod 70 is provided on a surface of the tip end of the rocking crushing wall 40 opposite to the fixed crushing wall 30. One end of the holding rod 7 is swingably connected to the holding rod 7.
The other end of 0 is swingably connected to a holding frame 71 arranged so that its position can be adjusted with respect to the base frame 10, and the swing crushing wall 40
The crusher 100A "is characterized in that an elastic means 80 for constantly urging the tip of the rocking crusher toward the holding frame 71 is interposed between the tip of the rocking and crushing wall 40 and the base frame 10. .

That is, in the crusher 100A according to the first aspect of the present invention, the rocking crushing wall 40 driven by the drive device 50 is opposed to the fixed crushing wall 30 fixedly provided on one side of the conveying path 20. Then, the rock or the like sent by the transport path 20 is forcibly crushed between the fixed crushing wall 30 and the rocking crushing wall 40. In order to perform this crushing, in the crusher 100A according to the first aspect, the tip of the rocking crushing wall 40 is configured so as to make a circular motion, so that rocks are crushed reliably. This circular movement is performed by rotationally driving the drive shaft 60 having the eccentric portion 61 by the driving device 50 and elastically holding the tip end of the rocking and crushing wall 40 by the holding rod 70 and the elastic means 80. There is.

Further, in order to solve the above-mentioned problems, the means adopted by the invention according to claim 2 is likewise described as "substantially horizontal with respect to the base frame 10 to convey a crushed object such as rock or concrete waste material. Conveying path 20 provided in a shape of
Fixed crushing wall 3 standing upright on one side near the exit of
0 and a crushing roll 90 having a large number of crushing teeth 91 facing the outlet vicinity of the fixed crushing wall 30. The crusher 100B comprises a rotating shaft 9 of the crushing roll 90.
4 is located at the other end of the transport path 20, and the crushing roll 9
0 is rotatably driven by a driving device 50 arranged on the other side of the conveying path 20, and a pair of auxiliary crushing rolls 92 facing each other is provided in a portion of the conveying path 20 downstream of the crushing roll 90. Crusher 1 characterized by
00B ”.

That is, in the crusher 100B according to the second aspect, as shown in FIG.
The rotary shaft 94 is arranged on the side opposite to the fixed crushing wall 30 of
The rotating shaft 94 supports a crushing roll 90 having a large number of crushing teeth 91 on its surface, and rotation of a portion of the crushing roll 90 facing the fixed crushing wall 30 mainly crushes a material to be crushed such as waste concrete. It is designed to be crushed. In the crusher 100B, a pair of auxiliary crushing rolls 92 are arranged on the front side of the conveying path 20 and on the downstream side of the crushing rolls 90. The concrete adhering to the surface of the crushed crushed material is removed.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the invention according to each claim will be described according to the embodiments shown in the drawings.
A description will be given separately for each claim.

Crusher 100A according to claim 1 FIGS. 1 to 5 show a crusher 100A according to claim 1.
In this crusher 100A, as shown in FIGS. 1 and 2, a transport path 20 for loading a crushed material such as rocks from the left end side in the figure and transporting it to the right side in the figure.
Is a base frame 1 that forms the basis of the crusher 100A.
0 supported. The transport path 20 is configured such that a metal endless belt is driven continuously by a driving device 21 disposed on the right side in FIG. 1, and is disposed substantially horizontally. As described above, arranging the transport path 20 in a substantially horizontal shape has a disadvantage that a proper place must be secured, but the entire apparatus is within the reach of the operator, This has an excellent advantage that the installation operation itself can be simplified.

As shown in FIG. 1, a fixed crushing wall 30 is erected and fixed on one side in the vicinity of the exit of the conveying path 20, and the fixed crushing wall 30 has a portion near the entrance. The tip portions of the rocking and crushing wall 40 are opposed to each other. That is, the inner surface of the fixed crushing wall 30 (the surface on the side of the transport path 20).
Large rocks and the like sandwiched between the rocking crushing wall 40 and the tip of the rocking crushing wall 40 are crushed here. For this reason, the fixed crushing wall 30 and the rocking crushing wall 40 are made of hard metal. It is natural that it is configured.

The rocking and crushing wall 40, as shown in FIG.
It is erected on the transport path 20 in a bridging state so that its tip is sequentially sandwiched with respect to the exit side portion of the fixed crushing wall 30, and floats in the air with respect to the transport path 20. It is in a state. That is, the rocking and crushing wall 40 has its tip end supported by the holding rod 70 and the elastic means 80 described later, and its rear end supported by the drive shaft 60 described below, so that the rocking crushing wall 40 is supported by the conveyance path 20. It is supported in a floating state. In addition,
In the illustrated embodiment, the upper part of the rocking and crushing wall 40 is covered with a cover supported by the base frame 10 as shown in FIG.
The state of the tip of the rocking and crushing wall 40 can be confirmed through an opening provided at a portion corresponding to the tip of the, and the crushed dust can be discharged through this opening.

The rear end portion (the left portion in FIGS. 1 and 2) of the rocking crushing wall 40 is a fixed crushing wall 30 of the conveying path 20.
The rocking crush wall 4
As shown in FIG. 2, a drive shaft 60 having both upper and lower portions as eccentric portions 61 is rotatably attached to the rear end portion of the zero. That is, as shown in FIG. 2, a pair of upper and lower bearings 41 are integrated on the outer surface of the swing crushing wall 40 (the surface opposite to the fixed crushing wall 30), and these bearings are integrated. Reference numeral 41 denotes each of the eccentric portions 61 of the drive shaft 60 rotatably supported, and the non-eccentric portion of the drive shaft 60 is rotatably supported by bearings 11 fixed to the base frame 10. Accordingly, if the drive shaft 60 is rotationally driven by the drive device 50 described later, the respective eccentric portions 61
Will rotate the rear end of the rocking crushing wall 40.

In particular, the drive shaft 60 is located on the back side of the rocking and crushing wall 40 and far from the tip of the rocking and crushing wall 40 on which debris such as rocks and dust are scattered. Therefore, there is almost no intrusion of strips or dust into the bearing portion 11 on the base frame 10 side or the bearing portion 41 on the rock crushing wall 40 side. That is, in the conventional crusher as shown in FIG. 7, the maintenance for the drive shaft 60 had to be frequently performed, but in the crusher 100A of the present invention, the maintenance is performed so frequently. It doesn't have to be done.

As shown in FIGS. 1 and 2, the driving device 50 is arranged on the side of the conveying path 20 opposite to the fixed crushing wall 30, and in this embodiment, an electric motor is adopted. It is what The rotational driving force of the driving device 50 is transmitted to the driving wheel 51 via a driving belt 52, and the driving wheel 51 has the driving shaft 60 described above.
Are connected integrally. That is, in the crusher 100A of this embodiment, the rotational driving force of the drive device 50 is reduced by the drive wheels 51 while the drive shaft 6 is being driven.
However, other means may be used, and any means may be grooved so long as at least the drive shaft 60 is rotationally driven.

By only driving the drive unit 50, the rear end of the rocking and crushing wall 40 simply rotates, and the tip of the rocking and crushing wall 40 is positively moved to make a circular motion. However, it is the holding rod 70 and the elastic means 80 that assists the circular movement of the tip portion of the rocking and crushing wall 40. As shown in FIGS. 1 and 2, the holding rod 70 and the resilient means 80
One end is connected to the back surface side of the tip end of the and the other end is supported on the base frame 10 side. The operation of the holding rod 70 and the resilient means 80 will be described below with reference to FIG.

FIG. 5 shows the holding rod 70 and the elastic means 80.
FIG. 4 is a schematic diagram showing that the tip of the oscillating crushing wall 40 moves in a circular motion by a circle, and shows the positional relationship between the holding rod 70 and the resilient means 80 in an opposite manner to the embodiment shown in FIG. 1. It is. In other words, the holding rod 70 and the resilient means 80 can make the distal end of the oscillating crush wall 40 circularly move even if the connecting positions on the respective distal ends are reversed.

First, with respect to the holding rod 70, one end of the holding rod 70 is rotatably connected to the back side of the rocking and crushing wall 40, and the other end side is held on the base frame 10 side. It is rotatably connected to the frame 71. In other words, the rear end of the oscillating crushing wall 40 is
When the rotary motion is performed by zero, the tip of the oscillating crushing wall 40 is controlled to make an arc motion centering on the holding frame 71. The elastic means 80 has one end rotatably connected to the vicinity of the part of the rocking crushing wall 40 to which the holding rod 70 is connected, and the other end supported on the holding frame 71 side. And a spring 81 for urging the rod back toward the holding frame 71.
Even if the rear end of the rocking and crushing wall 40 is circularly moved by the drive unit 50, the tip of the rocking and crushing wall 40 is always returned to the position shown in FIG.

The holding by the holding rod 70 for the circular movement, the returning operation to the original position by the elastic means 80, and the circular movement of the rear end portion of the rocking crushing wall 40 by the driving device 50 result in Therefore, the tip of the rocking and crushing wall 40 makes a circular movement. That is, the rocking crushing wall 40
Is an independent solid, but its rear end is
As a result, a circular motion centering on 0 is performed, and the distal end portion performs an arc motion with the radius of the length of the holding rod 70 centered on the holding frame 71 at a position different from that of the drive shaft 60. As a result, a circular motion as shown in FIG. 1 is performed, and the crushing of rocks and the like can be performed efficiently and reliably.

As to the crusher 100B according to claim 2, this crusher 100B is mainly for crushing concrete waste, as shown in FIG.
In addition, about the part in common with the said crusher 100A in this crusher 100B, the code | symbol used by embodiment description of the crusher 100A is attached | subjected in FIG. 6, and the detailed description is abbreviate | omitted.

In the crusher 100B, the fixed crushing wall 30 and each crushing tooth 91 of the crushing roll 90 facing the inner surface of the fixed crushing wall 30 near the outlet.
It is designed to crush concrete waste materials in cooperation with. That is, this crusher 100B
The crushing roll 90 is rotatably supported by a linear drive shaft 60, and is rotated by the drive device 50 without changing its position relative to the fixed crushing wall 30. Of course, since many crushing teeth 91 are integrally formed on the surface of the crushing roll 90, the concrete waste material carried in by the transport path 20 between the crushing roll 90 and the fixed crushing wall 30 is The crushing teeth of the crushing roll 90 are crushed by the rotation of each crushing tooth 91.

By the crushing by the crusher 100B, the concrete waste material becomes fine pieces, and these fine pieces are mainly only the aggregate in the concrete waste material.
This aggregate is classified into one in which concrete adheres and one in which concrete becomes fine. Fine aggregates and concrete fragments that cannot be reused are separated at the exit portion of the transport path 20 by a sieve device or the like (not shown). It is sent to a pair of auxiliary crushing rolls 92 at the next stage.

Each auxiliary crushing roll 92 is, for example, a miniaturized version of the above crushing roll 90, and is rotationally driven by each drive motor 93 so as to rotate in the direction of the arrow in FIG. Therefore, when the aggregate with adhering concrete is carried in between the pair of auxiliary crushing rolls 92 facing each other, the adhering concrete is forcibly peeled off from the aggregate, and each auxiliary Reusable aggregate is sent to the downstream side of the crushing roll 92, and this is collected and reused.

As described above, according to the crusher 100B, it is of course possible to crush concrete waste material, and it is possible to produce aggregate without adhering concrete, which is very advantageous for the treatment of concrete waste material. Is.

[0030]

As described above in detail, in the invention according to claim 1, as illustrated in the above embodiment, "the rear end of the rocking and crushing wall 40 is extended to the other side of the conveying path 20. , The longitudinal drive shaft 6 which is partially eccentric at the rear end
0 is provided so that the drive wheel 51 integrated with the drive shaft 60 is rotationally driven by the drive device 50 provided on the other side of the transport path 20, and the fixed crushing wall 30 at the tip of the rocking crushing wall 40. The one end of the holding rod 70 is swingably connected to the surface on the opposite side, and the other end of the holding rod 70 is swingably connected to a holding frame 71 which is arranged to be adjustable in position with respect to the base frame 10. In addition, the elastic means 80 for constantly urging the tip of the rocking crushing wall 40 toward the holding frame 71 is interposed between the tip of the rocking crushing wall 40 and the base frame 10. " Is characterized in that, by virtue of this configuration, the tip of the rocking crushing wall facing the fixed crushing wall makes a circular motion, so that the crushed object such as rock is crushed reliably. It is possible to separate the drive part such as the rotating shaft from the crushing part. It is possible to provide a crusher, which may be a maintenance-free.

Further, in the second aspect of the present invention, similarly, "a conveying path 2 provided substantially horizontally with respect to the base frame 10 for conveying a crushed material such as rock or concrete waste material is provided.
0, a fixed crushing wall 30 standing upright on one side in the vicinity of the exit of the conveying path 20 and in parallel with this, and a crushing roll 90 having a large number of crushing teeth 91 facing the vicinity of the exit of the fixed crushing wall 30. In the crusher 100B having, the rotating shaft 94 of the crushing roll 90 is located at the other end of the transport path 20, and the crushing roll 90 is rotationally driven by the drive device 50 arranged on the other side of the transport path 20. And
A pair of auxiliary crushing rolls 92 that face each other are provided on the downstream side of the crushing roll 90 of the transport path 20. ”is a characteristic of the configuration, and it goes without saying that crushed objects such as rocks can be crushed. When the material to be crushed is concrete waste, it can be crushed reliably and maintenance of the driving part can be made free, and the concrete adhering to the crushed material after crushing can also be removed. It can provide a crusher that can do it.

[Brief description of drawings]

FIG. 1 is a plan view of a crusher according to claim 1. FIG.

FIG. 2 is a side view of the crusher.

FIG. 3 is a front view of the crusher as viewed from an entrance side of a transport path.

FIG. 4 is a rear view of the crusher as viewed from an exit side of a conveyance path.

FIG. 5 is a schematic plan view of the crusher for explaining the operation of the holding rod and the resilient means employed in the crusher.

FIG. 6 is a plan view of a crusher according to claim 2.

FIG. 7 is a plan view of a conventional crusher.

8 is an enlarged vertical cross-sectional view of the crusher shown in FIG. 7 centered around the rotation axis.

[Explanation of symbols]

 100A / 100B Crusher 10 Base frame 20 Transport path 21 Drive device 30 Fixed crushing wall 40 Swing crushing wall 41 Bearing part 50 Drive device 51 Drive wheel 52 Drive belt 60 Drive shaft 61 Eccentric part 70 Holding rod 71 Holding frame 80 Ejection means 81 spring 90 crushing roll 91 crushing tooth 92 auxiliary crushing roll 93 drive motor 94 rotating shaft

Claims (2)

[Claims] 1. A conveyance path provided substantially horizontally to a base frame for conveying crushed objects such as rocks, and a fixed crushing wall erected parallel to one side near the exit of the conveyance path. And a rocking crusher having a swinging crushing wall that is provided on the conveyance path so as to face the fixed crushing wall, and has a tip end that is inclined so as to be narrowed toward a portion near the exit of the conveyance path. The rear end of the rocking and crushing wall is extended to the other side of the conveyance path, and a vertical drive shaft, part of which is eccentric, is provided at the rear end, and the drive shaft is integrated with the drive shaft. The wheel is rotationally driven by a drive device provided on the other side of the transport path, and one end of the holding rod is swingably connected to a surface of the tip end portion of the swinging and crushing wall opposite to the fixed crushing wall. Then, the other end of this holding rod is arranged so that its position can be adjusted with respect to the base frame. And an elastic means for urging the tip end of the rocking crushing wall toward the holding frame side at all times and connecting the tip end of the rocking crushing wall to the holding frame side. A crusher characterized by being installed in the. 2. A transport path provided substantially horizontally with respect to a base frame for transporting crushed materials such as rocks or concrete scraps, and a standing path parallel to the transport path near the exit. A crusher having a fixed crushing wall and a crushing roll having a large number of crushing teeth facing the vicinity of the outlet of the fixed crushing wall, wherein the rotating shaft of the crushing roll is located at the other end of the conveying path. The crushing roll is driven to rotate by a driving device arranged on the other side of the conveying path, and the crushing roll is provided on a portion of the conveying path downstream of the crushing roll,
A crusher comprising a pair of auxiliary crushing rolls facing each other.