JP2003024809A - Crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crusher which is small-sized and low-priced. SOLUTION: In the crusher, a material to be crushed charging port 2 is formed at an upper surface of a cylindrical case 1 having an opening at one end thereof, a first shaft 3 and a second shaft are provided with freely rotating and coaxially with an axial center of the case 1, screw blade 15 is fixedly provided at the first shaft 3 to constitute a transportation section, a rotary crushing body 16 is fixedly provided at the second shaft to constitute a crushing section 5 between the rotary pulverizing body 16 and an inner peripheral surface of the opening of the case 1, the material to be crushed charged from the material to be crushed charging port 2 is transported by the transportation section to the pulverizing section 5 and the transported material is pulverized by the crushing section 5. The crusher is characterized by providing the case 1 so to be movable to a base 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher, and more particularly to a crusher suitable for recycling lightweight cellular concrete.

[0002]

2. Description of the Prior Art Lightweight aerated concrete (ALC) boards are
It is used for outer walls of buildings. When the building is demolished, most of the ALC plates are treated as industrial waste, but some are crushed for reuse. Since the ALC plate has the reinforcing bars embedded therein, when it is reused, it is crushed to take out the reinforcing bars inside, and it is crushed into an appropriate particle size by a crushing device. This crushed ALC powder is reused as a part of the material and another product in manufacturing the ALC plate.

[0003]

By the way, the crushing device is robust and large-scaled for crushing a hard substance such as stone, and is large in size and high in cost. As a crushing device,
The case is equipped with a screw conveyor, and the crushed material is conveyed to the crushing section by the screw conveyor, and the crushed material is crushed by the crushing section constituted by the rotary crushing body and the fixed crushing body installed in the case. In such a crushing device, a crushing unit is constituted by a fixed crushing body installed on the inner peripheral edge of one end of the case and a rotary crushing body installed so as to be retractable at one end of the case, and the rotating crushing body is projected and retracted at one end of the case, The particle size is determined by adjusting the gap between the rotary crushed body and the fixed crushed body. Therefore, in such a crushing device,
The rotating crushing body is rotatably supported in a cantilever manner, the power of its bearings and drive motor, etc. is installed on the table, the table is movably installed with respect to the base of the crushing device, and the table is rotated by rotating. The crushed body is ejected from the case. Therefore, in such a crushing device, the device becomes large and expensive.

Therefore, an object of the present invention is to provide a compact and inexpensive crushing device.

[0005]

In the crushing apparatus according to the first aspect of the present invention, an object to be crushed is formed on the upper surface of a cylindrical case having one end opened, and the first axis is coaxial with the axis of the case.
A shaft and a second shaft are rotatably installed, a screw blade is fixedly installed on the first shaft to form a conveying unit, and a rotary crushing body is fixed on the second shaft. A crushing unit is formed between the crushed body and the inner peripheral surface of the opening of the case, and the crushed object introduced from the crushed material input port is conveyed to the crushing section by the conveying section, and the conveyed object is crushed by the crushing section. It is a crushing device for crushing in 1., characterized in that the case is movably installed on a base.

According to the crushing apparatus of the present invention, it is sufficient to install the rotary crushing body accompanied by power without moving, and move only the case. That is, the bearing of the rotary pulverized body and the power of the rotary pulverized body are installed on the table, and it is not necessary to move the table with respect to the base, and they are fixedly installed on the base,
Since only the case needs to be movably installed on the base, the structure is simplified and a small and inexpensive device can be obtained.

According to a second aspect of the present invention, there is provided the pulverization apparatus according to the first aspect, wherein the first shaft and the second shaft are constituted by one shaft and both end portions of the shaft are formed. Is characterized by being supported by a pair of bearings installed on the base.

According to the crushing apparatus of the present invention, the rotary crushing body and the screw blade are fixed to the same shaft, and the shaft can be supported by bearings at both ends. That is, since it is not necessary to fix the screw blade and the rotary crushing body to separate shafts and to support the shafts in a cantilever manner, it is necessary to take measures to prevent runout of the shaft core, for example, to increase the shaft diameter. In addition, the weight of the device can be reduced, and it is not necessary to provide power for rotating and driving each shaft, and a small and inexpensive device can be obtained.

A crushing apparatus according to a third aspect of the present invention is the crushing apparatus according to the first or second aspect, wherein the rotary crushing body is composed of a cone-shaped spindle surface and a tapered surface, and the spindle surface and the tapered surface are The feature is that chips are fixed on almost the entire surface.

According to the crushing apparatus of the present invention, a relatively large crushed object is crushed by the spindle surface tip and the case inner peripheral surface, and a crushed object is crushed by the tapered surface tip and the case inner peripheral surface. Therefore, high grinding efficiency can be obtained.

A crushing apparatus according to a fifth aspect of the present invention is the crushing apparatus according to the fourth aspect, wherein the tip fixedly mounted on the spindle surface is tilted in a rotational direction with respect to the axial center in plan view. It is characterized by having been placed.

According to the crushing apparatus of the present invention, since the chips rotate so as to bite into the object to be crushed, high crushing efficiency can be obtained.

A crushing apparatus according to a fifth aspect of the present invention is the crushing apparatus according to the third or fourth aspect, in which a tapered surface that expands outward is formed at the inner peripheral edge of the opening of the case,
It is characterized in that a blade is formed on almost the entire tapered surface, and the blade and the tip of the rotary crushing body are opposed to each other with a slight gap to form a crushing portion.

According to the crushing apparatus of the present invention, the crushed object is crushed between the tip and the blade, so that higher crushing efficiency can be obtained, and the crushed crushed object is guided to the outside of the case.

A crushing apparatus according to a sixth aspect of the present invention is the crushing apparatus according to the first or second aspect, in which a bracket is provided so as to project from the lower surface of the case and a screw rod is rotatably installed on the base. The bracket is screwed onto a screw rod, and the case is moved by rotating the screw rod.

According to the crushing apparatus of the present invention, since the case is screwed by the screw rod, the fixed crushing body can be accurately moved with respect to the rotating crushing body, and the gap between the rotating crushing body and the fixed crushing body is adjusted. Can be done accurately.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A crushing apparatus according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, this crushing device rotates coaxially with a cylindrical case 1 having a partition wall 1a at one end thereof, an object to be crushed 2 formed in the upper part of the case 1, and a case 1. Shaft 3 freely mounted, crushed material conveying unit 4 formed in the intermediate portion of shaft 3, one end of shaft 3 and opening end 1 of case 1
It is composed of the crushing unit 5 and the like configured in b.

As shown in FIG. 1, the base 6 of this crushing device has an installation surface 6a at an appropriate angle α, for example, 5 °, with respect to the horizontal plane. Two pairs of bearings 7 and 8 are assembled on the installation surface 6a. And those bearings 7,
The ends of screw rods 9 and 9 are rotatably supported by 8, respectively. On the other hand, a hopper 10 is installed at the crushed material input port 2 of the case 1. Also, case 1
The bottom surface of the bracket is a bracket 1 that protrudes in a V shape in the radial direction.
Two sets 1 and 11 are installed, and the brackets 11 and 11 are screwed to the screw rods 9 and 9, respectively. Further, bevel gears 12, 12 are fixed to the other ends of the screw rods 9, 9, respectively. Then, when the screw rods 9, 9 are rotated by the power described later, the case 1 is moved in the axial direction via the brackets 11, 11.

A pair of bearings 13 and 14 are erected on the installation surface 6a of the base 6. The ends of the shaft 3 are rotatably supported by the bearings 13 and 14, respectively. In the middle of this shaft 3, the screw blade 1
5 is fixed by welding or the like, and thereby constitutes the crushed material conveying section 4. Further, a cone-shaped rotary crushing body 16 is fixed to one end of the shaft 3 via a key 17 or the like. The rotary pulverized body 16 has a cone-shaped spindle surface 16a.
And the tapered surface 16b. And
As shown in FIG. 2, the spindle surface 16a has a chip 18
The a and 18b are fixed at equal intervals in the circumferential direction by screws, welding, and the like, and the tips 19 are also fixed at the equal intervals in the circumferential direction by welding and the like on the tapered surface 16b. Chip 18
The a and 18b are arranged in a state of being tilted with respect to the shaft core 3a in a plan view, and the tip 18a is slightly tilted with respect to the tip 18b. Further, the tip 19 has the axis 3 in plan view.
It is arranged parallel to a. On the other hand, on the inner peripheral edge of the opening end 1b of the case 1, an annular fixed pulverized body 20 is planted by screws or the like. The inner peripheral surface of the fixed crushed body 20 has a tapered surface 21 that expands outward, and the tapered surface 21 has a plan view over the entire circumference as shown in the enlarged view of FIG. A blade 22 is formed parallel to the shaft core 20a. The fixed pulverized body 20 and the rotary pulverized body 16 constitute the pulverization section 5.

Further, as shown in FIG. 4, two drive motors 23 and 24 are installed on the installation surface 6a of the base 6. The drive shaft of the drive motor 23 has a sprocket 2
5, the sprocket 26 is fixed to the other end of the shaft 3. And both sprockets 25,
A chain 27 is wound around 26. A spur gear 28 is fixed to the drive shaft of the drive motor 24. On the other hand, bearings 29, 30 are provided on the installation surface 6a of the base 6.
Is installed, and the bearings 29, 30 have shafts 31
Is mounted. And, at both ends of this shaft 31,
Bevel gears 32, 32 are fixedly mounted, and a spur gear 3 is provided in the middle portion.
3 is fixed. The spur gear 33 meshes with the spur gear 28 of the drive motor 24, and the bevel gears 32, 32 mesh with the bevel gears 12, 12 of the screw rod 9, respectively. Therefore, when the drive motor 23 is driven, its power is transmitted to the shaft 3 via the sprocket 25, the chain 27, and the sprocket 26, and the screw blades 15 of the crushed material conveying section 4 and the rotary crushing body 16 of the crushing section 5 are transmitted. Is rotated. When the drive motor 24 is driven, it is transmitted to the shaft 31 via the spur gears 28 and 33, and further transmitted to the screw rod 9 via the bevel gears 32 and 12,
The case 1 is moved via the bracket 11.

The crushing device constructed as described above is operated as follows. First, the drive motor 24 is rotated normally or reversely to move the case 1 along the axis, and the gap between the blade 22 of the fixed crushing body 20 and the tip 19 of the rotating crushing body 16 is appropriately adjusted according to the crushing particle size. Set to. Next, the drive motor 23 is rotated to rotate the screw blades 15 and the rotary crushing body 16, and the crushed body crushed to an appropriate size, for example, ALC, is put into the case 1 from the hopper 10. The object to be crushed put into the case 1 falls on the screw blade 15 and is conveyed to the crushing section 5 by the screw blade 15.

The object to be crushed conveyed to the crushing unit 5 is first finely crushed by the chips 18a and 18b of the rotary crusher 16 and further ground by the chip 19 of the rotary crusher 16 and the blade 22 of the fixed crusher 20. Be done. Then, the ground object to be ground is discharged to the chute 34. The pulverized material discharged to the chute 34 is collected by a bucket or the like installed below the chute 34.

In the above embodiment, the rotary pulverized body 1
6, chips 18a, 18b, 19 etc. are fixedly mounted,
Instead of the chips 18a, 18b, 19 a blade may be formed directly on the surface of the rotary crushing body, and a blade 22 is formed on the inner peripheral surface of the fixed crushing body 20. It may be fixed. Further, in the above-described embodiment, the bracket 11 of the case 1 is screwed onto the screw rod 9,
The case 1 is moved by rotating the screw rod 9 by a motor 24, but a slide rod is provided in place of the screw rod 9, and the bracket 11 of the case 1 is slidable on the slide rod. The case 1 may be moved by a cylinder or the like. Furthermore, in the above-described embodiment, the screw blade 15 and the rotary crushing body 16 are installed on the same shaft 3, but the screw blade 15 and the rotary crushing body 16 may be installed on different shafts.

Further, although ALC is exemplified as the object to be crushed in the above-mentioned embodiment, it goes without saying that the object to be crushed may be other solid substances such as glass, wood chips, and oyster shells.

[0026]

According to the crushing apparatus of the first aspect of the present invention, a pair of bearings are installed on both ends of a shaft provided with a screw blade forming a conveying section and a rotary crushing body forming a crushing section. And the case is movably installed on the base. Therefore, according to the crushing device of the present invention, the crushing device structure accompanied by power need not be moved, and only the case needs to be moved, so that the size of the device can be reduced.

According to the crushing device of the second aspect of the present invention, the rotary crushing body and the screw blade are fixed to the same shaft,
Both ends of the shaft are supported by bearings. Therefore, it is not necessary to fix the screw blade and the rotating pulverized body to separate shafts and to support the shafts in a cantilevered manner.Therefore, it is necessary to take measures to prevent runout of the shaft core, for example, to increase the shaft diameter. In addition, the weight of the device can be reduced, and it is not necessary to provide power for rotating and driving each shaft, and a small and inexpensive device can be obtained.

According to the crushing apparatus of the third aspect of the present invention, the rotary crushing body is composed of the cone-shaped spindle surface and the tapered surface, and the chips are fixedly provided on almost the entire spindle surface and the tapered surface. . Therefore, according to the crushing apparatus of the present invention, a relatively large object to be crushed is crushed by the tip of the spindle surface and the case inner peripheral surface, and the object of crushing is crushed by the tapered surface tip and the case inner peripheral surface. , High grinding efficiency can be obtained.

In the crushing apparatus according to the fourth aspect of the present invention, the tip for fixing the rotary crushing body to the spindle surface is arranged such that the tip is inclined with respect to the axis in the rotation direction in plan view. . Therefore, according to the crushing apparatus of the present invention, since the chips rotate so as to bite into the object to be crushed, high crushing efficiency can be obtained.

According to a fifth aspect of the crushing apparatus of the present invention, a tapered surface is formed on the inner peripheral edge of the opening of the case so as to expand outward, and a blade is formed on almost the entire tapered surface, and the blade is formed. And the tip of the rotary crushing body are opposed to each other with a slight interval to form a crushing section. Therefore, according to the crushing device of the present invention, since the crushed object is crushed between the blade of the fixed crushing body and the tip of the rotary crushing body, higher crushing efficiency can be obtained, and the crushed crushed object is Guided to the outside of the case.

In the crushing apparatus of claim 6 according to the present invention, the bracket is projected on the lower surface of the case, the screw rod is rotatably installed on the base, and the bracket is screwed onto the screw rod to fix the screw rod. The feature is that the case is moved by rotating. Therefore, according to the crushing apparatus of the present invention, since the case is screwed by the screw rod, the fixed pulverized body can be moved with respect to the rotary pulverized body with high accuracy, and the gap between the rotary pulverized body and the fixed pulverized body can be adjusted. It can be done accurately.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a main part of a crushing device according to the present invention.

FIG. 2 is a plan view showing a rotary pulverized body in the pulverizing apparatus according to the present invention.

FIG. 3 is a perspective view showing a portion of a fixed crushing body in the crushing device according to the present invention.

FIG. 4 is a plan view showing an embodiment of a crushing device according to the present invention.

[Explanation of symbols]

1 case 1a partition wall 1b Open end 2 crushed material input port 3 axes 3a shaft core 4 Grinding object transport section 5 crushing section 6 base 6a Installation surface 7,8 bearing 9 screw rod 10 hopper 11 bracket 12 bevel gears 13, 14 bearings 15 screw blades 16 Rotating crushed body 16a Spindle surface 16b taper surface 18a, 18b, 19 chips 20 Fixed crushed body 20a shaft core 21 Tapered surface 22 blades 23, 24 drive motor 25,26 sprockets 27 chains 28 spur gears 29,30 bearings 31 axes 32 bevel gears 33 spur gear 34 shoots

Claims (6)

[Claims] 1. An object to be crushed is formed on an upper surface of a cylindrical case having one end opened, and the first case is coaxial with an axis of the case.
A shaft and a second shaft are rotatably installed, a screw blade is fixedly installed on the first shaft to form a conveying unit, and a rotary crushing body is fixed on the second shaft. A crushing unit is formed between the crushed body and the inner peripheral surface of the opening of the case, and the crushed object introduced from the crushed material input port is conveyed to the crushing section by the conveying section, and the conveyed object is crushed by the crushing section. A crushing device for crushing according to claim 1, wherein the case is movably installed on a base. 2. The first shaft and the second shaft are constituted by one shaft, and both ends of the shaft are supported by a pair of bearings installed on a base. Item 1. A crushing device according to item 1. 3. The rotary crushed body is composed of a cone-shaped spindle surface and a tapered surface, and chips are fixedly provided on substantially the entire surface of the spindle surface and the tapered surface. Crusher. 4. The crushing device according to claim 3, wherein the chips fixed to the spindle surface are arranged so as to be inclined with respect to the axial direction. 5. A tapered surface is formed on the inner peripheral edge of the opening of the case so as to expand outwardly, a blade is formed on almost the entire tapered surface, and the blade and the tip of the rotary crushing body are formed. The crushing device according to claim 3 or 4, wherein the crushing units are configured so as to face each other with a slight interval. 6. A case is provided by protruding a bracket on a lower surface of the case, rotatably installing a screw rod on the base, screwing the bracket on the screw rod, and rotating the screw rod. The crushing device according to claim 1 or 2, wherein the crusher is moved.