JPH07328462A - Pulverizer - Google Patents

Abstract

PURPOSE:To provide a pulverizer by which a material to be pulverized is continuously subjected to pulverizing treatment and also pulverized fragments of uniform size are obtained, and to restrain the vibration and noise generated in the pulverizer with the operation of the pulverizer. CONSTITUTION:A pulverizer D1 is provided with a base 10, a motor M arranged on the base 10, a rotating shaft 20 arranged perpendicular to the horizontal surface (base plate 12) of the base 10, a pulverizing blade unit 30 arranged on the rotating shaft 30, a pulverizing chamber enclosing the pulverizing blade unit 30, and a guiding part 40 for a material to be pulverized arranged above the pulverizing chamber. The rotating shaft 20 is freely rotatably supported by a 1st bearing 22, a 2nd bearing 24 and the base plate 12. The pulverizing chamber has an opening CR1 on the upper part thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing device for crushing various materials such as wood and resin materials. More specifically, the crushing blade provided on a rotary shaft rotates to remove various materials. The present invention relates to a crushing device for crushing.

[0002]

2. Description of the Related Art Conventionally, various crushing apparatuses have been put into practical use in order to process wood, resin materials, etc. as waste materials, or wood, resin materials, etc. used as raw materials.

As such a crushing device, for example, a crushing blade unit fixed to a rotary shaft arranged parallel to the installation surface is provided with a movable crushing blade, and the crushing blade unit is rotated when the crushing blade unit is rotated. Has been put into practical use, which has a structure for striking and crushing an object to be crushed in cooperation with a fixed blade provided on the crushing chamber side.

In this type of crushing apparatus, the crushing chamber is provided with a mesh screen or the like that does not allow the crushed object to pass through until it becomes a crushed piece of a predetermined size. It can be crushed many times until it becomes a crushed piece. Therefore, it can be said that a crushed piece having a relatively uniform size can be obtained, which is suitable for processing into raw materials.

In addition to the above, a pair of crushing drums arranged parallel to the installation surface are provided, and the crushing drums rotate in opposite directions so that the crushing object is sandwiched between the crushing objects. A crushing device having a crushing structure has been put into practical use.

In this type of crushing apparatus, the crushed object may be charged from a direction perpendicular to the axial direction of each crushing drum, and the size of the crushed object to be charged is not so limited. It was

[0007]

However, in the crushing device having the crushing blades arranged on the rotary shaft, it is necessary to put the object to be crushed in parallel to the rotary shaft because of its structure, and the rotary shaft is In the conventional crushing device, which is arranged parallel to the installation surface and has the opening of the crushing chamber formed on the side surface, it is necessary to load the object to be crushed into the crushing chamber from the lateral direction. When such a crushing device is operated, the crushed object is in a state of being diffused as crushed pieces in the crushing chamber. Therefore, especially when the opening is formed on the side surface of the crushing chamber, the opening is closed to remove the crushed piece. It is necessary to exclude leakage to the outside.

Therefore, each crushing process is a batch process,
There is a problem that the next crushed object cannot be supplied while the crushing device is operating, and the crushing efficiency cannot be improved by the continuous crushing process of the crushed object.

Further, in the process in which the crushed object gradually becomes smaller, the crushed pieces are accumulated in the lower part of the crushing chamber, so that most of the crushing process is performed by the lower fixed blade and the rotating crushing blade, There was a problem that the lower fixed blade was heavily worn. Further, it is not possible to realize a state in which all the crushing blades are always crushing the object to be crushed, and in this respect also, the crushing processing efficiency cannot be improved.

Further, since a large opening and a rotary shaft whose end on the opening side is not supported by a supporting member are provided so that a large object to be crushed can be crushed, the crushing process is performed. In addition, there is a problem that the rotating shaft shakes, which causes vibration and noise.

On the other hand, in the powder apparatus for crushing the object to be crushed by the pair of crushing drums, the object to be crushed can be continuously supplied, but the object to be crushed is crushed only once by each crushing drum. However, the obtained crushed pieces were coarse (large), and the size of each crushed piece was uneven.

Therefore, when the coarse crushed pieces obtained by this crusher are collected and incinerated by the dust collector, the dust collection efficiency is deteriorated because the crushed pieces are large, and the crushed pieces cannot be transported over a long distance. In addition, there was a problem that it could not burn out when incinerated. Further, the crushed pieces having different sizes are sometimes difficult to use as a raw material, and there is a problem that the use is limited.

The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to continuously subject a material to be pulverized to pulverization and obtain pulverized pieces having a uniform size. An object of the present invention is to provide a crushing device that can be used. Further, another object of the present invention is to suppress vibration and noise generated in the crushing device due to the operation of the crushing device.

[0014]

In order to achieve the above object, a crushing apparatus according to the present invention is provided with a drive means and a rotary device which is disposed vertically to a horizontal installation surface and is rotationally driven by the drive means. A shaft, a crushing blade unit provided with one or a plurality of crushing blades arranged on the rotating shaft, and a bottomed cylindrical shape having an opening on the upper surface, and each crushing blade crushes the object to be crushed. And a crushing object guide portion that is disposed above the crushing chamber and that guides the crushed object to the crushing chamber.

Here, it is desirable that the rotating shaft is rotatably supported by at least two supporting members, and the crushing chamber cooperates with the crushing blade to fix a crushed object. Is preferably provided.

Further, it is desirable that a pre-crushing device is disposed above the object to be crushed, and the pre-crushing device is provided with a container for crushing the crushed product and a pair of crushing devices. It is preferable that the crushing drum and driving means for rotating the crushing drums in opposite directions are provided as a configuration.

[0017]

In the crushing apparatus according to the present invention having the above structure,
When the start switch is turned on, the drive means operates to rotate the rotary shaft. Since this rotary shaft is arranged vertically and its weight is not applied in the radial direction and the load of the crushing blade unit etc. is not applied, vibration and noise generated in the crushing device are suppressed without eccentricity of the rotary shaft even if it is rotationally driven. . In addition, when the rotary shaft is supported by at least two support members, the vibration generated on the rotary shaft that is being driven to rotate more effectively is suppressed, and the vibration and noise generated in the crushing device are also effectively suppressed. It

A crushing blade unit having one or a plurality of crushing blades is arranged on the rotary shaft, and when the rotary shaft is rotated, the crushing blade unit and each crushing blade are rotated.

On the other hand, the material to be ground is thrown in from a ground material guide portion arranged above the grinding chamber, and the ground material to be ground is formed into a bottomed cylinder having an opening on the upper surface. You will be guided to the crushing room. At this time, each object to be crushed is guided in the crushing chamber parallel to the rotation axis.

In the crushing chamber, the above-mentioned crushing blades are rotating, and the objects to be crushed entering the crushing chamber are crushed one after another. Here, when the fixed blades are arranged in the crushing chamber, the rotating crushing blades are struck and crushed by the cooperative action of hitting the fixed blades by their own weight and centrifugal force.

Then, the crushed material is generated, and the crushed material generated in the crushing chamber is sequentially discharged from the crushed material discharge portion to the outside. Next, the operation of the pre-grinding device when the pre-grinding device is arranged above the crushed material input part will be described.

When the power source is turned on, the driving means is started to rotate the crushing drums in opposite directions, thereby rotating the crushing drums. Then, the crushed object is charged from a direction perpendicular to each rotating crushing drum, and the crushed object is crushed by shearing while being sandwiched between the crushing drums, and the crushed crushed object is It is guided to the crushed object guide of the crusher.

The crushed product obtained at this time is a coarse crushed piece, but it has a large size and is compared with the case where the unprocessed crushed material is directly fed to the crushed material guide portion. Then, the load on the crushing device is reduced, and the crushing processing efficiency is improved as a whole.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments in which the present invention is embodied in a crushing apparatus will be described below with reference to the drawings.

First, the structure of the crushing device D1 according to the first embodiment will be described with reference to FIGS. Crusher D
1 is a base 10 and a motor M disposed on the base 10.
And a rotating shaft 20 arranged perpendicularly to a horizontal surface (a substrate 12 described later) of the base 10, a crushing blade unit 30 arranged on the rotating shaft 20, and a crushing chamber containing the crushing blade unit 30. A CR and a crushed object guide portion 40 arranged above the crushing chamber CR are provided. Here, the motor M means a driving means, and the crushing blade unit 30 means a unit including a plurality of crushing blades 31.

The base 10 comprises four support legs 11, a substrate 12 connected to the upper ends of the support legs 11, and eight reinforcing plates 13 for reinforcing the connection between the support legs 11 and the substrate 12. Has been done.

Each supporting leg 11 is formed in a hollow quadrangular prism shape, and a wheel 11a is attached to the lower end of the supporting leg 11 to facilitate the movement of the crushing device D1. Also,
The substrate 12 is formed in a square shape when viewed from above, and a mounting hole 12a into which a bearing B2 (described later) mounted to the rotary shaft 20 is mounted is formed in the center of the substrate 12. Further, a first wall forming an outer wall of the crushing device D1 on the upper surface side thereof
The casing 14 is connected to prevent the crushed object (hereinafter, referred to as “crushed piece K1”) that has been crushed in the crushing chamber CR from being discharged to the outside.

The first casing 14 has a bottom portion 14a formed in a square shape having the same size as the base plate 12, and a side surface portion 14b formed in a bottomless tubular shape and having a lower opening edge connected to the bottom portion 14a. And a first screen guide 42 described later.
It has a circular opening 14c smaller than the flange 43 and is composed of a ceiling surface 14d connected to the upper opening of the side surface 14b.

The motor M is arranged so that the drive shaft M1 faces downward.
It is attached to the side surface of the base 10 via the attachment member 59. A drive pulley DP is attached to the drive shaft M1, and a V-belt VB is stretched over the groove of the drive pulley DP and the groove RP1 of the rotary pulley RP of the rotary shaft 20 described later.

Although the motor M is used as the drive means in this embodiment, for example, an internal combustion engine may be used as the drive means at any place where gas treatment is possible. Does not require power.

The rotating shaft 20 is a rod member having a circular cross section, and is arranged in the mounting hole 12a of the substrate 12 perpendicularly to the substrate 12 via a bearing B2. This rotating shaft 2
0 is rotatably supported by a first bearing 22 described later via a bearing B1 mounted below the upper end, and is rotatable with respect to the substrate 12 via a bearing B2 mounted near the center. Supported by.

Further, in the vicinity of the lower end of the rotary shaft 20, a thrust bearing S1 which receives a vertical load is rotatably supported by a second bearing 24 via a bearing B3. Further, a rotary pulley RP is attached to the lower end portion, and the driving force of the motor M is transmitted via the V belt VB.

A sub-cutter 54 is attached to the upper end of the rotary shaft 20 supported by the first bearing 22. On the peripheral surface of the sub cutter 54, 90
Four blades 54a spaced apart are projected in a cross shape. Then, the conical cap 46 is attached to the blade portion 54a of the sub-cutter 54 so as to cover the upper end portion of the rotary shaft 20, and the crushed object falling at the mounting portion of the rotary shaft 20 and the sub-cutter 54. The material to be crushed is protected from K and the material to be crushed K is radially dispersed downward.

The first bearing 22 is mounted with the bearing B1 and indirectly supports the rotating shaft 20 to form a donut-shaped base portion 2.
2a and four arm portions 22b extending in a cross shape from the base portion 22a. In the first bearing 22, the tip end portion of each arm portion 22b is fixed to the first casing 14 via the bracket 50. Further, the mesh screen 52 has a curved surface with a predetermined diameter (8 m in this embodiment).
m), a plurality of sieving holes 52b each having a cross section of approximately 1/4 arc are formed.

The second bearing 24 is formed in a tubular shape having a substantially L-shaped cross section, and has an upper end portion 24a fixed to the lower side of the substrate 12, a thrust bearing mounting hole 24c in which the thrust bearing S1 is mounted, And a side end 24b having a bearing mounting portion 24d on which the bearing B3 is mounted.

The crushing blade unit 30 is composed of a rotor 31 fixed to the rotary shaft 20 and a crushing blade 33 rotatably attached to the rotor 31 via a connecting shaft 32. The rotor 31 is a cylindrical portion 3 directly fixed to the rotary shaft 20.
1a and a plurality of mounting pieces 31b protruding in a cross shape with respect to the tubular portion 31a when viewed from above.

Then, the mounting piece 31 protruding in each direction
b is formed in plural at a predetermined interval in the vertical direction,
A mounting hole 31c is formed at a predetermined center position so that the common connecting shaft 32 can be removably mounted.

As shown in FIG. 4, the crushing blades 33 are obtained by forming the crushing blade portions 33a at four corners of a rectangular plate material, and the crushing blades 33 are connected at the widthwise central positions near both ends thereof. A first shaft mounting hole 33b and a second shaft mounting hole 33c for detachably mounting the shaft 32 are respectively formed.

The crushing chamber CR includes four fixed blades 35 arranged so as to surround the rotary shaft 20 and four mesh screens whose side ends 52a are supported by the fixed blades 35 adjacent to each other. 52, a first bearing 22 arranged on the upper side of the bracket 50, and a space surrounded by the crushing blade unit 30.

The fixed blade 35 has a fixed blade portion 35a formed stepwise on the side facing the rotary shaft 20, and an engaging groove 35b with which the side end portion 52a of the mesh screen 52 is engaged. There is. Further, the upper and lower ends of each of the fixed blades 35 are fixed to the bracket 50 and the bottom surface portion 14a of the first casing 14, respectively, and are arranged 90 degrees apart from each other.

The crushed object guide portion 40 comprises a first screen guide 42 and a second screen guide 44. The first screen guide 42 is formed in a bottomless cylindrical shape in which the upper opening 42a is widened upward.
A flange 43 is formed on the periphery of the lower opening 42,
It is fixed to the ceiling surface 14d of the first casing 14 with a flange 43.

The second screen guide 44 is formed as a bottomless cylinder having a constriction in the upper portion, and the upper opening 44a is connected to the lower opening 42b of the first screen guide 42. A tubular second casing 16 is arranged outside the second screen guide 42.

The upper end of the second casing 16 is the flange 4
3 is fixed to the lower surface of the circular opening 43a, and the lower end is fixed along the lower opening 44b of the second screen guide 42. The circular opening 43a at the center of the flange 43
Is a lower opening 42b of the first screen guide 42,
The second screen guide 44 also functions as a connecting portion with the upper opening portion 44a, and the opening diameters thereof are the respective opening portions 42b, 44.
It is formed corresponding to the diameter of a.

Further, at a predetermined position of the first casing 14 (on the left side of the upper side surface in FIG. 3), the crushed piece K1 is crushed by a crusher D
1 is formed with a discharge port 56 for discharging to the outside, and a discharge duct 58 is connected. And the exhaust duct 58
A blower (not shown) is connected to the tip of the blower. Due to the suction action of the blower, the crushed pieces K1 in the crushing chamber CR are sucked through the discharge duct 58 and collected by a dust collector (not shown) or the like.

Next, the operation of the crushing device D1 according to the first embodiment having the above construction will be described. When the power is turned on, the drive shaft M1 of the motor M starts to rotate, and along with this, the drive pulley DP at the tip of the drive shaft M1 also starts to rotate.
When the drive pulley DP rotates, the V belt VB
The rotary pulley RP is rotated via the, and the driving force of the motor M is transmitted to the rotary shaft 20.

When the rotary shaft 20 which receives the rotational driving force starts to rotate, the crushing blade unit 3 fixedly attached to the rotary shaft 20.
0 starts rotating in the crushing chamber CR. Here, the load generated in the radial direction with respect to the rotating shaft 20 by the rotation is transmitted through the bearings B1, B2, B3 mounted near the upper end portion, the central portion, and the lower end portion of the rotating shaft 20. The rotary shaft 20 is rotatably supported by being received by the support members 22, 12, and 24.

On the other hand, in this embodiment, the rotary shaft 20 is the substrate 12
Since it is disposed vertically with respect to, it is necessary to maintain the rotatability of the rotary shaft 20 while supporting the weight generated in the axial direction of the rotary shaft 20. In the present embodiment, a stepped portion having a lower shaft diameter is formed in the rotary shaft 20 portion to which the thrust bearing S1 is mounted, and the stepped portion is mounted near the lower end portion of the rotary shaft 20. By being mounted on the bearing portion S2 of the bearing S1, the weight of the rotary shaft 20 is received and the rotary shaft 20 is rotatably supported.

With the crushing device D1 thus operated, the objects to be crushed K are sequentially charged from the upper opening 42a of the first screen guide 42. The crushed object K that has been introduced is
The cap 46 uniformly disperses in the crushing chamber CR. However, since the crushing chamber CR in this embodiment has the opening portion CR1 directed upward, the dispersed object K to be crushed is rotated by the rotating shaft 20. There is no bias in the plane orthogonal to.

When the crushed object K is a long one, the crushed object K is cut by being sandwiched between the crushing blade 33 and the first bearing 22 and has an appropriate size. And is housed in the crushing chamber CR.

The object to be crushed K that has entered (stored) in the crushing chamber CR is crushed by the fixed blade 35 and the crushing blade 33 until it becomes a crushed piece K1 having a predetermined particle size. This will be described in detail with reference to FIG.

It is assumed that the crushing blades 33 are stored in the rotor 31 at the beginning of activation. When the rotating shaft 20 rotates in this state and the rotor 31 fixed to the rotating shaft 20 through the tubular portion 31a rotates, each mounting piece 31 of the rotor 31 rotates.
Each crushing blade 33 that is axially attached to b via a connecting shaft 32.
Starts moving in the rotation direction of the rotary shaft 20 in the housed state.

Then, as the number of rotations of the rotary shaft 20 increases, centrifugal force acts on each crushing blade 33, and each crushing blade 33 gradually forms a second shaft hole 33b around the connecting shaft 32. The unfolding movement is started with the end portion (hereinafter referred to as the free end) being directed outward.

Since the free ends of the crushing blades 33 thus developed reach the position where the fixed blades 35 are arranged, the fixed blades 35 are hit by the crushing blades 33. Then, each crushing blade 33 hitting the fixed blade 35 is repeatedly swung back by the reaction of the hitting, and then expanded again to hit the fixed blade 35 repeatedly. It should be noted that this operation is repeated for each of the four fixed blades 35 installed.

When the object K to be crushed is loaded in this state, the object K to be crushed and the crushing blade 33 start moving in the crushing chamber CR about the rotary shaft 20. When the crushing blade 33 strikes the fixed blade 35, the crushing blade 33 and the fixed blade 3
When the object to be crushed K is present between 5 and 5,
Is applied to the object K to be crushed, and the object K to be crushed, which receives the centrifugal force, is crushed by being hit by the fixed blade 35. When the crushed object K becomes a crushed piece K1 to some extent, in addition to impact crushing,
Sliding and crushing is performed due to the sliding of the blade portions 33a, 35a of the crushing blade 33 and the fixed blade 35.

The object K to be crushed is repeatedly crushed in the crushing chamber CR until it becomes a crushed piece K1 having a diameter smaller than that of the sieving hole 52b formed in the mesh screen 52, and the crushed object K is smaller than the sieving hole 52b. When it becomes a crushed piece K1 having a diameter, it passes through the sieving hole 52b and moves to the space between the first casing 14 and the mesh screen 52.

By the way, in the present embodiment, since the crushing chamber CR has the opening CR1 formed above, the crushed object K
Are evenly distributed in the plane orthogonal to the rotation axis 20, and the crushing blades 33 and the fixed blades 35 efficiently perform the crushing process.
Although the crushed object K accumulates in the lower part of the crushing chamber CR,
Due to the flow of air generated in the crushing chamber CR as the rotor 31 rotates, the rotor 31 is rolled up and evenly distributed in the crushing chamber CR.

The crushed piece K1 that has passed through the mesh screen 52 is a blower (not shown) provided in the discharge duct 58.
Since it is sucked by, it is collected by a dust collector (not shown) from the discharge port 56 formed on the first casing side surface 14 (upper left side in FIG. 3) through the discharge duct 58, and then in an incinerator (not shown), or It is transported to a raw material storage (not shown) or the like.

Next, the structure of the crushing processing unit D2 according to the second embodiment will be described with reference to FIGS. The crushing processing unit D2 according to the second embodiment is characterized in that a pre-crushing device D3 is provided above the crushing device D1 according to the first embodiment. Since the crushing device D1 has already been described, the description thereof will be omitted and the same reference numerals as those used in the description of the first embodiment will be used for the respective constituent elements.

The pre-crushing device D3 includes a base 60 installed so as to straddle the crushing device D1, a casing 62 disposed on the left side of the base 60 (see FIG. 5), and a right side of the base 60 (see FIG. 5)) as a drive means disposed in the motor M
2. A crushed material input port 64 disposed above the crushing chamber 62
Is equipped with.

The base 60 has four support legs 60a and support legs 6
0a and a substrate 60b connected to the upper end thereof, and a lower opening 62 of a crushing chamber 62 to be described later is provided on the left side of the substrate 60b.
An opening 60c adapted to the opening area of b is formed.

The casing 62 for partitioning the crushing chamber is formed in the shape of a hollow square box, and the upper opening 62a is connected to the lower opening 64b of the material input port 64, which will be described later. A pair of grinding drums 66 is provided on the lower side wall.
a and 66b are installed horizontally and in parallel with each other.

The crushing drums 66a and 66b are the case 6
2, a rotary shaft 67a that is rotatably installed, and a rotary shaft 67a.
a plurality of crushing wheels 67b that are alternately attached to a, and
The spacer 67c has a smaller diameter than the crushing wheel 67b.

When the crushing wheels 67b and the spacer 67c are mounted on the rotary shaft 67a of the one crushing drum 66a, the crushing wheels 67b and the spacers 67c mounted on the other crushing drum 66b are installed at the mounting positions. Are installed so that they are staggered. A plurality of crushing blades 67d are formed on the outer periphery of each crushing wheel 67b, and the rotating shaft 67a
On the other hand, when the crushing wheels 67b are inserted, the arranging positions of the crushing blades 67d are inserted so as to be displaced.

The right side of the casing 62 (see FIG. 5)
Is provided with a gear mechanism GM for transmitting the driving force of the motor M2 to each rotating shaft 67a. In addition, the gear mechanism GM is configured such that the rotation shafts 67a rotate in directions opposite to each other and toward the sides adjacent to each other.

The motor M2 is provided with a base 6 via a support frame 68 so that the drive shaft M3 is parallel to the substrate 60b.
It is fixed to 0, and the gear mechanism GM is attached to the tip of the drive shaft M3.
A drive gear DG for driving is mounted. The drive shaft M3 is covered with a cover 69 in order to prevent the drive shaft M3 from being damaged by accidentally dropping or contacting a crushed object or the like.

The crushed material inlet 64 has an upper opening 64a having an opening area increasing upward and a lower opening 64b connected to the upper opening 62a of the casing 62. The cross-sectional shapes of 64a and 64b are both quadrangular.

Next, the crushing device D2 according to the second embodiment.
The action of will be described. When the power is turned on, the motor M
The second drive shaft M3 starts to rotate, and the drive gear DG attached to the tip of the drive shaft M3 rotates. The rotational driving force of the drive gear DG is supplied to the crushing drums 66a, 6 via the gear mechanism GM.
6b is transmitted to the rotary shaft 67a, and each crushing drum 66a,
66b starts rotating. Here, since the gear mechanism GM is configured to rotate in the directions opposite to each other toward the side where the rotary shafts 67a are adjacent to each other, the crushing drums 66a, 66a,
66b rotates so as to sandwich the crushed object K.

Therefore, the crushed material K introduced from the crushed material input port 64 is drawn into the casing 62 so as to be sandwiched between the crushing drums 66a and 66b, and alternately inserted into the crushing drums 66a and 66b. The particles are gradually crushed by the cooperation of the crushing wheels 67b.

That is, the object K to be crushed is drawn downward by the crushing blades 67d formed on the outer periphery of each crushing wheel 67b, and the crushing wheels 67b alternately mounted on the crushing drums 66a and 66b are sheared by the crushing action. The crushed object K is chopped and the crushing process is executed.

Thus, the pair of grinding drums 66a and 66b
The crushed object (crushed piece) K2 crushed by is discharged from the lower opening portion 62b of the casing 62 without being repeatedly crushed, and is guided to the crushed object guide portion 40 of the crushing device D1. .

Here, in the conventional impact crushing type crushing device,
Since the crushed material input port is formed on the side surface of the device,
If the lid is not closed during the crushing process, the charged material (the object K to be crushed) will be spilled, so that it is difficult to perform the continuous crushing process. However, since the crushing object guide portion 40 is formed on the upper surface of the crushing device D1 according to the present embodiment, the continuous crushing process for further pulverizing the crushed pieces pretreated in the pre-crushing device D3 is performed. To be executed.

Crushed pieces K obtained by the pre-crushing device D3
No. 2 is coarse and large, but the load applied to the crushing device D1 is much smaller than that in the case where the object to be crushed is directly charged into the crushing device D1, and the crushing processing efficiency is also improved.

Since the operation of the crushing device D1 has already been described in the first embodiment, its explanation is omitted. that's all,
As described in detail with reference to some embodiments, the crushing device D1 according to the present embodiment includes the rotating shaft 20 arranged perpendicularly to the substrate 12, and the opening CR1 of the crushing chamber CR is upward. Since it is formed, unlike conventional grinding equipment,
The crushing process does not have to be a batch process, and continuous crushing processes can be performed. Therefore, the crushing device D
By incorporating 1, it is possible to construct the crushing system D2 and improve the efficiency of the crushing process.

Further, the crushed object K which has been charged, or
Since the crushed object K is evenly dispersed in the plane orthogonal to the rotation axis 20, the crushing blades 33 and the fixed blades 35 always crush the object K during operation of the crushing device D1. Therefore, it is possible to efficiently perform the crushing process and reduce the time required for the crushing process.

Further, unlike the conventional crushing device in which the load of the crushing process is unevenly distributed only to the specific fixed blade 35, the load of the crushing process is evenly applied to all the fixed blades 35 provided,
There is an advantage that the crushing device D1 can be easily maintained, such that the specific fixed blade 35 is not worn out quickly and the fixed blade 35 does not need to be replaced frequently.

Further, when the rotating shaft is arranged in parallel with the substrate, the rotating shaft causes eccentric rotation due to the load of the installed crushing blade unit and the like, so that vibration and noise are generated in the crushing device. However, in this embodiment, since the load is applied in the axial direction of the rotary shaft 20, the vibration and noise generated in the crushing device D1 can be suppressed.

In particular, the bearings B1, B2, and B3 are provided at three positions of the rotary shaft 20 near the upper end, near the center, and near the lower end.
When it is supported via B3, it is possible to more effectively suppress the generation of vibration and noise generated in the crushing device D1 with the rotation of the rotary shaft 20.

Further, since the crushing chamber CR is provided with the mesh screen 52, the object K to be crushed is repeatedly crushed until it becomes the crushed piece K1 having a predetermined size, and the crushed piece K1 having a desired size and uniform. Can be obtained. Therefore, it becomes easy to use the crushed piece K1 as a raw material, and when the crushed piece K1 is incinerated, it can be completely incinerated.

Next, according to the crushing processing unit D2 of the second embodiment, the crushed material K can be roughly crushed and pulverized in different processing steps. That is, the crushed object K is coarsely crushed into pieces by the pre-crushing device D3, and the coarsely crushed pieces K2 are put into the crushing device D1 as the crushed object K.

As a result, the crushing time in the crushing device can be shortened as compared with the case where the original crushed object is crushed by the crushing device D1 from the beginning. In addition, the crushing device D1 has a structure corresponding to fine crushing, for example, the crushing blade 3
3 is arranged at a shorter pitch with respect to the rotor 31,
It becomes possible to make it lighter to cope with a light load, and the crushing efficiency can be further improved by specializing the crushing device D1.

As described above, the crushing device D1 according to this embodiment disposes the rotating shaft 20 perpendicularly to the substrate 12, and the opening CR1 of the crushing chamber CR is formed on the upper surface. It can be implemented by having a configuration.

The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various modifications and improvements can be made without departing from the spirit of the present invention. It is easily guessed.

For example, in the first embodiment, as the crushing device,
Although the crushing device D1 having a structure for hitting and crushing the crushed object K by the cooperation of the crushing blade 33 and the fixed blade 35 is used, when the crushed object K is not as hard as wood chips,
A crushing device having a structure in which the crushed object K is sheared and crushed by a crushing blade having a knife-shaped blade may be used. In such a case, there is an advantage that the crushing process can be executed without generating a hitting sound.

The crushing blade 33 is attached to the mounting piece 3 of the rotor 31.
Although it is attached to the 1b via the connecting shaft 32, the crushing blade may be brought into contact with the fixed blade in advance so as to be connected by an elastic material. In such a case, there is an advantage that the structure of the crushing blade unit can be simplified and the manufacturing cost can be suppressed.

Next, in the second embodiment, as a pre-milling device,
Pre-milling device D equipped with two-axis milling drums 66a, 66b
3 was used, but a plurality of crushing drums, for example, a four-axis crushing drum may be provided, and in such a case, the pre-crushing device D
The crushed piece obtained by No. 3 has a smaller size, and has an advantage that the efficiency of the subsequent crushing process can be improved.

Further, the crushing device D1 is used as the pre-crushing device D3.
In such a case, it is efficient to increase the diameter of the sieving holes 52b of the mesh screen 52 of the crushing device D1 which functions as the pre-crushing device D3 so as to share the process of the crushing process.

Furthermore, the drive means is not limited to the motor, and an internal combustion engine may be used. In such a case, there is an advantage that it is not necessary to secure a power source when installing the crushing device D1. As a result, the crushing process can be performed by going to the place where the crushed objects K are loaded, and the cost for waste material processing can be significantly reduced.

Further, in the present embodiment, the sieve hole 52
Although the hole diameter of b is 8 mm, it may be determined according to the size of the crushed piece K1 to be obtained, and may be 10 mm, for example.

[0089]

As described above, since the crushing apparatus according to the present invention has the rotary shaft arranged vertically to the horizontal installation surface and the crushing chamber having the opening formed on the upper surface thereof, On the other hand, it is possible to continuously perform crushing treatment,
A crushed piece having a uniform size can be obtained. Further, it is possible to suppress vibration and noise generated in the crushing device due to the operation of the crushing device. In particular, when the rotating shaft is rotatably supported by at least two supporting members, it is possible to more effectively suppress the generation of vibration and noise.

Next, when the pre-crushing device is provided above the crushing device, the load on the crushing device during the crushing process can be reduced, and the crushing process time can be shortened. In addition, by promoting the specialization of the crusher,
Further, the efficiency of crushing treatment can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the entire configuration of a crushing device according to a first embodiment from the front.

FIG. 2 is a side view of the crushing apparatus according to the first embodiment, and shows the upper part of the pedestal in a cross section taken along line AA in FIG.

FIG. 3 is a plan view of the crushing device according to the first embodiment, and shows the left half in a cross section taken along line BB in FIG.

FIG. 4 is an enlarged explanatory view illustrating how the fixed blade and the grinding blade grind the object to be ground in the grinding chamber.

FIG. 5 is an explanatory view showing the entire configuration of a crushing device according to a second embodiment from the front.

FIG. 6 is a plan view showing a state in which an object to be crushed is removed from the crushing apparatus according to the second embodiment.

FIG. 7 is a side sectional view of the case in the crushing apparatus according to the second embodiment, taken along the line C-C in FIG.

[Explanation of symbols]

10 ... Base, 12 ... Substrate, 14 ... First casing, 16
... second casing, 20 ... rotary shaft, 22 ... first bearing,
24 ... 2nd bearing, 30 ... Grinding blade unit, 31 ... Rotor, 32 ... Connection shaft, 33 ... Grinding blade, 33a ... Grinding blade part,
35 ... Fixed blade, 35a ... Fixed blade part, 40 ... Grinding object guide part, 42 ... First screen guide, 44 ... Second screen guide, 46 ... Cap, 50 ... Bracket, 52 ...
Mesh screen, 52b ... Sieve hole, 54 ... Sub cutter, D1 ... Grinding device, D2 ... Grinding processing unit, D
3 ... Pre-grinding device, M ... Motor

Claims (5)

[Claims] 1. A drive means, a rotary shaft which is disposed vertically to a horizontal installation surface and is rotationally driven by the drive means, and one or a plurality of crushing blades disposed on the rotary shaft. A crushing blade unit provided with the crushing chamber, which is formed into a bottomed cylindrical shape having an opening on the upper surface, and in which each crushing blade crushes the object to be crushed; A crushing device, comprising: a crushed object guide part for guiding the crushed object to the chamber; and a crushed object discharge part for discharging the crushed object crushed in the crushing chamber. 2. The crushing device according to claim 1, wherein the rotating shaft is rotatably supported by at least two supporting members. 3. The crushing apparatus according to claim 1 or 2, wherein a fixed blade for crushing an object to be crushed is provided in the crushing chamber in cooperation with the crushing blade. Crushing equipment. 4. The crushing device according to any one of claims 1 to 3, wherein a pre-crushing device is provided above the object to be crushed input part. 5. The crushing device according to claim 4, wherein the pre-crushing device includes a crushed object storage container, a pair of crushing drums for crushing the crushed object, and the crushing drums in opposite directions. A crushing device comprising: a driving unit for rotating the crushing device.