JP2005279593A - Method for adjusting particle size of crushed object in crusher, crusher and crushing vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crusher capable of finely adjusting the particle size of a crushed object by a simple operation in the case of crushing tree branches, leaves and grass, etc. <P>SOLUTION: The crusher comprises: a rotating body provided with a cutter for crushing or splitting an object to be treated; a casing (5) for rotatably housing the rotating body; an introducing apparatus (4) for grass and leaves for introducing the object to be crushed toward the cutter; a discharge port (520) where air containing the crushed object flows; and an opening controller (7) capable of adjusting the size of the discharge port (520) by turning a sealing plate (70). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for adjusting particle size of crushed material in a crusher, a crusher, and a crushing work vehicle. More specifically, the present invention relates to a device capable of adjusting the particle size of a crushed material with a simple operation when crushing, for example, a tree branch, a leaf, or grass.

  For example, branches and leaves cut by roadside tree pruning performed by local governments, or cut grass generated by mowing large-scale weeds are crushed and fragmented by a crusher (also called a chipper). And the collect | recovered crushed material is disposed of by incineration or the like, or is composted in a forest or the like.

  In such crushing work, for example, when there are more leaves and grass compared to tree branches, or when only leaves and grass are processed, if the crushed material is crushed too finely, moisture will come out and the crushed material May accumulate in the casing or in the discharge duct.

If this happens, the crushing operation cannot be performed, so it is necessary to adjust the particle size (size) of the crushed material according to the moisture content of the object to be crushed.
Conventionally, as a type of crusher capable of adjusting the particle size of the crushed material, there is a type in which a screen having a large number of holes is provided on the discharge side to allow the crushed material to pass through (see Patent Document 1).

JP 2002-102734 A

In the crusher described in Patent Document 1, in order to adjust the particle size of the crushed material, it is necessary to replace the screen with one having a different hole diameter. With this structure, it is usually difficult to prepare a large number of screens with different hole diameters. For example, fine adjustment of the particle size cannot be performed while observing the state of the crushed material to be discharged.
Also, the screen replacement operation involves complicated operations such as removal and installation of parts on the side of the crusher body, and cannot be easily performed.

(Object of the present invention)
The present invention is a method for adjusting the particle size of a crushed material in a crusher, in which the particle size of the crushed material can be finely adjusted by a simple operation when crushing, for example, a tree branch, a leaf, or a grass. It aims at providing a crusher and a crushing work vehicle.

The means of the present invention taken in order to solve the above problems are as follows.
In the first invention,
In what sends the crushed material fragmented in the crushing part from the crushing part together with air,
When the size of the crushed material is reduced, the residence time of the crushed product in the crushing part is lengthened, and when the size of the crushed product is increased, the residence time of the crushed product is shortened. This is a method of adjusting the size of the crushed material.

In the second invention,
The adjustment of the residence time is characterized by reducing the size of the outlet when increasing the residence time, and increasing the size of the outlet when shortening the residence time.
It is the method of adjusting the magnitude | size of the crushed material which concerns on 1st invention.

In the third invention,
The particle size of the crushed material was adjusted by adjusting the amount of resistance to the circulating air at the discharge port through which the air containing the crushed material flows, and adjusting the time that the material to be crushed stays in the crushing part. It is characterized by
It is the particle size adjustment method of the crushed material in a crusher.

In the fourth invention,
The size of the outlet through which the air containing the crushed material flows is adjusted, and the particle size of the crushed material is adjusted by adjusting the time during which the material to be crushed stays in the crushing section. ,
It is the particle size adjustment method of the crushed material in a crusher.

In the fifth invention,
The pressure of the air in the crushing part of the crusher is detected. If the detected pressure is higher than the reference pressure, the size of the discharge port is increased. If the detected pressure is lower than the reference pressure, the size of the discharge port is reduced. It is characterized by performing control to
It is the particle size adjustment method of the crushed material in the crusher which concerns on 4th invention.

In the sixth invention,
The rotational speed of the rotating body having the cutter is detected. If the detected rotational speed is lower than the reference rotational speed, the size of the discharge port is increased. If the detected rotational speed is higher than the reference rotational speed, the discharge port size is increased. It is characterized by performing control to reduce the
It is the particle size adjustment method of the crushed material in the crusher which concerns on 4th or 5th invention.

In the seventh invention,
A rotating body having a cutter for crushing or fragmenting the workpiece;
A casing for rotatably accommodating the rotating body;
An introduction device for introducing the object to be crushed toward the cutter;
An outlet through which air containing crushed material flows,
With
It is configured so that the size of the discharge port can be adjusted,
It is a crusher.

In the eighth invention,
The cutter provided on the rotating body is arranged with the required number of fixed blades provided on the rotating plate attached to the rotating shaft, essentially parallel to the axial direction of the rotating shaft and at a required distance from the rotating shaft. It consists of the required number of rotating blades attached so that the base side can be rotated or rotated,
The introduction device is composed of a tree branch introduction device toward the fixed blade body and a grass and leaf introduction device toward the rotating blade body,
It is the crusher which concerns on 7th invention.

In the ninth invention,
The rotating blade body includes a curved plate-shaped blade body having a concave surface directed to the rotational movement direction side of the rotating body,
A crusher according to an eighth invention.

In the tenth invention,
The pressure of the air in the crushing part of the crusher is detected, and if the detected pressure is higher than the reference pressure, the size of the discharge port is increased. If the detected pressure is lower than the reference pressure, the size of the discharge port is reduced. It is provided with a control device that performs control to perform,
A crusher according to the seventh, eighth or ninth invention.

In the eleventh invention,
The rotational speed of the rotating body having the cutter is detected. If the detected rotational speed is lower than the reference rotational speed, the size of the discharge port is increased. If the detected rotational speed is higher than the reference rotational speed, the discharge port size is increased. It is provided with a control device that performs control to reduce the
A crusher according to the seventh, eighth, ninth or tenth invention.

In the twelfth invention,
Of the casing, characterized in that the inner surface along the rotation direction of the rotating body is a polyhedral shape,
A crusher according to the seventh, eighth, ninth, tenth or eleventh invention.

In the thirteenth invention,
A self-propelled traveling vehicle is equipped with a crusher according to the seventh, eighth, ninth, tenth, eleventh or twelfth invention,
It is a crushing work vehicle.

The crusher referred to in the claims and specification is a concept including, for example, a chipper, a shredder, a chipper shredder, a grinder, and the like.
In addition, the cutter is used as a term including the meaning of cutting tools such as a cutting blade, a cutting blade, and a knife.
Furthermore, the term “crushing” includes the meaning of crushing and breaking hard things such as tree branches and the like, as well as the meaning of fragmenting soft things such as grass and leaves.

As a method of adjusting the magnitude of the resistance of the discharge port to the circulating air, in addition to the method of adjusting the size of the discharge port, for example, the method of adjusting the length of the discharge path having the discharge port, the bending portion of the discharge path The method is not limited to these methods as long as the resistance can be adjusted with respect to the circulating air.
Further, as a method of adjusting the size of the discharge port, for example, a method of sliding a sealing plate disposed at the discharge port, a method of rotating the sealing plate, or a plurality of sealing plates is provided to adjust the number of the sealing plates. Examples of the structure include, but are not limited to.

  The casing referred to in the claims and the specification accommodates a rotating body that rotates at a high speed equipped with a cutter or the like, and performs a crushing process inside in cooperation with the rotating body. The term “casing” includes the meaning of a housing.

The inner surface of the casing has a polyhedral shape, for example, when the cross section in a direction perpendicular to the rotation axis of the rotating body is a polygonal shape such as a hexagon, octagon, decagon, etc. The present invention is not limited to the above as long as it has a large number or a plurality of surfaces.
Moreover, the corner | angular part may be provided in the boundary part of each surface, and it may be provided roundly. In addition, you may comprise not only a flat surface but the curved surface, such as a spherical surface, the concave surface curved from the inner surface side, and a convex surface. Furthermore, a structure in which they are mixed may be used.

  The casing may have the same polyhedral shape as the outer surface and the inner surface, as in the case where the metal plate is processed into a cylindrical shape, or the inner surface member having a polyhedral shape is mounted inside the outer surface member of the required shape. However, even with other structures, it is sufficient that at least the inner surface is a polyhedral shape.

(Function)
The operation of the present invention will be described. Here, each constituent element of the present invention will be described by giving a reference numeral given to each part in the embodiment described later, but this provision of the reference sign is only for the purpose of helping understanding of the explanation. Therefore, it does not mean that each constituent element is limited to the above-described parts.

The rotator (6) of the crusher is driven, and the material to be crushed is introduced toward the cutters (65, 68) of the rotator (6) by the introduction device (3,4). The material to be crushed is crushed by the cutters (65, 68), stays in the casing (5) and the rotating body (6) for a short time, and is crushed more finely.
The crushed material is discharged to the outside through the discharge port (520) together with the air by the air flow generated by the rotating body (6).

At this time, if the size of the crushed material to be discharged is too large or too small, the size of the discharge port (520) is adjusted.
If the crushed material is too large, reduce the size of the outlet (520). This makes it difficult for the air to be discharged, and the time during which the crushed material stays inside the casing (5) and the rotating body (6) becomes longer. That is, since the time for the crushing process becomes longer, the crushed material becomes smaller (the particle size becomes smaller).

  If the crushed material is too small, the size of the discharge port (520) is increased. Thereby, air becomes easy to be discharged, and the time during which the crushed material stays inside the casing (5) and the rotating body (6) is shortened. That is, since the time for the crushing process is shortened, the crushed material becomes larger (larger particle size).

  The cutter (65, 68) provided on the rotating body (6) includes a required number of fixed blade bodies (68) provided on the rotating plate (61) attached to the rotating shaft (60) and the rotating shaft (60). ) Is essentially parallel to the axial direction of the rotation axis and at a required distance from the rotation axis, and is composed of the required number of rotating blades (65) attached so that the base side can be rotated or rotated. A device having a tree branch introduction device (3) toward the fixed blade (68) and a grass and leaf introduction device (4) toward the rotary blade (65) By introducing grass and leaves from the grass introduction device (4) from the grass introduction device (3), the crushing treatment can be performed efficiently.

  That is, for example, when cutting grass with a tree branch, even if it is introduced to the fixed blade body (68) provided on the rotating plate (61) and processed, the grass is soft and the rotating plate (61) is also obstructive. To work, grass cutting and feeding cannot be done easily.

On the other hand, by introducing the cut grass to the rotary blade (65) side, there is nothing that obstructs the introduction of the grass as in the rotary plate (61), so that the grass can be fed smoothly. The grass introduced into the rotating body (6) is reliably crushed by the crushing action of the rotating blade (65) and the casing (5).
Thus, by providing the introduction device (4) for exclusive use of the grass, not only when processing the grass alone, but also when processing the tree branch and the grass simultaneously, by introducing from the dedicated introduction device, respectively. Highly efficient crushing work.

  The rotating blade body (65) includes a curved plate-shaped blade body (69) having a concave surface facing the rotational movement direction of the rotating body (6). 69) By moving so as to embrace the air, a stronger air flow can be generated.

  Detect the pressure of the air in the crushing part (5, 6) of the crusher, and if the detected pressure is higher than the reference pressure, increase the size of the outlet (520) so that it is lower than the reference pressure. For example, a device equipped with a control device that performs control to reduce the size of the discharge port (520) operates as follows.

  For example, if the crushed material becomes smaller, moisture comes out and adheres to the inner surface of the discharge channel (duct (53), etc.) having the discharge port (520), and if the discharge port (520) becomes narrow, the air is difficult to be discharged and the crushing part The pressure of air in (5,6) increases. If the pressure rises above the reference value, the control device (7, 8) increases the size of the discharge port. Thereby, the magnitude | size of a crushed material becomes large for the same reason as the above.

  In addition, when the crushed material is light and soft, such as grass or leaves, it tends to be discharged without being sufficiently crushed. In this case, air passing through the discharge port (520) is also easily discharged, and crushed. The pressure of the air in the section (5, 6) decreases. When the pressure falls below the reference value, the size of the discharge port (520) is reduced by the control device (7, 8). Thereby, the magnitude | size of a crushed material becomes small for the same reason as the above.

  The number of rotations of the rotating body (6) having the cutter (65, 68) is detected, and if the detected number of rotations is lower than the reference number of rotations, the size of the discharge port (520) is increased and becomes the reference If it is higher than the number of revolutions, a device equipped with a control device that performs control to reduce the size of the discharge port (520) operates as follows.

  For example, if the crushed material becomes small, moisture comes out and adheres to the inner surface of the discharge channel (53) having the discharge port (520), and if the discharge port (520) becomes narrow, the air is difficult to be discharged and the crushed material is crushed in the crush ( 5 and 6). As a result, the resistance to the rotating body (6) increases and the rotational speed of the rotating shaft (60) decreases. When the rotational speed is less than the reference value, the size of the discharge port (520) is increased by the control device (7, 8). Thereby, the retained crushed material is discharged and the size of the crushed material is increased for the same reason as described above.

  In addition, for example, if the crushed material is light and soft, it tends to be discharged without being sufficiently crushed, but in this case, the air passing through the discharge port (520) is likely to be discharged, and the crushed material staying there is also less resistance. Decreases and the rotational speed of the rotating shaft (60) of the rotating body (6) increases. If the number of rotations exceeds the reference value, the size of the discharge port (520) is reduced by the control device (7, 8). Thereby, the magnitude | size of a crushed material becomes small for the same reason as the above.

Among the casing (5), the crusher whose inner surface along the rotating direction of the rotating body (6) has a multifaceted shape changes when the direction and speed of the wind generated by the rotating body hit each surface, and the casing (5) Turbulence occurs inside. Also, for example, when a piece that has been cut into pieces by a cutter (65, 68) rotates in the same direction as the rotating body (6) with the wind inside the casing (5), it becomes a resistance to hit each surface by centrifugal force. Thus, the rotation becomes slow, and the cutter (65, 68) or the like of the rotating body (6) that rotates quickly becomes easy to contact. Moreover, what hits each surface bounces back and approaches the cutters (65, 68), etc. of the rotating body (6), so that it becomes easier to contact.
As a result, it is possible to efficiently make a light leaf like a leaf that has been difficult with a conventional crusher. Further, even when the cutter (65, 68) is not provided on the rotating body (60), the strip rotating with the wind hits each surface of the inner surface of the casing (5) and is crushed by the impact. In addition, if the amount is collected to some extent, it will be rolled up as a lump on the inner surface side of the casing (5), so it is not efficient compared to the case where the cutter (65, 68) is provided. However, a certain degree of crushing is possible.

  A crushing vehicle equipped with a crusher according to the present invention on a self-propelled traveling vehicle can easily move a crusher to a necessary place such as a forest land when crushing small-diameter trees such as thinned wood or forest land waste materials. Can be made.

(A) According to the present invention, when the size of the crushed material to be discharged is too large or too small, the size of the outlet is adjusted by changing the size of the outlet or the like, By adjusting the time during which the crushed material stays inside the casing and the rotating body, the particle size of the crushed material can be easily adjusted. Moreover, in the structure which adjusts the magnitude | size of a discharge port, the particle size of a crushed material can be finely adjusted by carrying out the fine adjustment of a magnitude | size.

(B) The pressure of the air in the crushing part of the crusher is detected, and if the detected pressure is higher than the reference pressure, the size of the discharge port is increased. If the detected pressure is lower than the reference pressure, the size of the discharge port is increased. Detecting the number of rotations of the rotating body having the cutter and the rotating body having the cutter, and if the detected number of rotations is lower than the reference number of rotations, the size of the discharge port is increased and the reference number of rotations If it is higher than the number, the one that performs control to reduce the size of the discharge port will automatically perform control to improve it according to the particle size of the crushed material estimated from the detected pressure and rotation speed Can do.

(C) The introduction device for introducing the object to be crushed is composed of a tree branch introduction device directed to the fixed blade body and a grass and leaf introduction device directed to the rotating blade body. Thus, not only when processing the leaves alone, but also when processing the tree branches and the leaves at the same time, they can be crushed with high efficiency by introducing them from the dedicated introduction devices.

(D) When the rotating blade includes a curved plate-shaped blade with a concave surface facing the rotational movement direction of the rotating body, the blade moves by the rotation of the rotating body so as to embed air. Can produce a stronger airflow. Moreover, the blade can be more reliably crushed by the blade.

(E) Among the casings, the crusher whose inner surface along the rotation direction of the rotating body has a multifaceted shape changes when the direction and speed of the wind caused by the rotating body hit each surface, and is shredded. When rotating in the same direction as the rotator with the wind inside the casing, the centrifugal force causes the surface to bounce and bounce, causing resistance to slow down and making it easier to come into contact with a cutter or the like of the rapidly rotating rotator. Thereby, crushing of light grass and leaves can be performed with high efficiency.

(F) A crushing vehicle equipped with a crusher according to the present invention on a self-propelled traveling vehicle, for example, when crushing small-diameter trees such as thinned wood, forest land waste materials, etc., or pruning work in street trees or general households Furthermore, when crushing branches and leaves generated by pruning work or the like in an orchard, the crusher can be easily moved to a necessary place, so that efficient work can be performed.

The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is a schematic front view illustrating a first embodiment of a crusher according to the present invention,
FIG. 2 is a schematic plan view of the crusher,
FIG. 3 is a schematic cross-sectional view taken along line AA in FIG. 4 showing the structure of the rotating body of the crusher.
4 is a schematic cross-sectional view taken along the line BB in FIG. 3 showing the structure of the rotating body of the crusher.

  In the following description, the expressions “front / rear / left / right” representing the position and direction are based on FIGS. 1 and 2. That is, the left side in FIGS. 1 and 2 is the “rear side”, and the right side is the “front side”. Further, the upper side in FIG. 2 is the “right side”, and the lower side is the “left side”.

The crusher A1 has a base frame 1. A tree branch introduction device 3 is provided on the right side of the base frame 1 and a grass introduction device 4 is provided on the front side. Note that the crusher may have a structure in which the structure having the tree branch introduction device 3 and the grass and leaf introduction device 4 is not combined with the opening / closing control devices 7 and 8 described later.
The tree branch introduction device 3 and the grass and leaf introduction device 4 have biting machines 31 and 41 on the casing 5 side described later in the guide bodies 30 and 40, respectively. The biting machines 31 and 41 have a biting rotating body having a rotating shaft and four claw plates provided at equal intervals in the circumferential direction. The biting rotor is driven by a hydraulic motor or the like. In addition, since the structure of each introduction apparatus 3 and 4 is common, detailed description is abbreviate | omitted.

A casing 5 is provided on the left side of the guiding body of the tree branch introducing device 3 and the rear side of the guiding body of the grass introducing device 4.
The casing 5 includes a lower casing 51 and an upper casing 52. The lower casing 51 is formed of a metal plate having a constant width, and has four surfaces which are provided at an angle of 135 ° and constitute a multifaceted portion.
In addition, the upper casing 52 has three surfaces which are parts constituting multiple surfaces provided at an angle of 135 ° (see FIG. 3). The rear side of the upper casing 52 is a discharge port 520 and is connected to a discharge duct 53. The lower casing 51 and the upper casing 52 have side plates 500 on the left and right sides, respectively.

The side plate 500 of the casing 5 on the tree branch introduction device 3 side has an introduction port 54. The biting rotary body of the biting machine 31 described above is located slightly to the right of the introduction port 54. A receiving blade (not shown) is provided at the leading end of the guide body over the entire width of the inlet 54. The receiving blade is a rectangular plate-shaped body.
The casing 5 has an introduction port 55 on the grass introduction device 4 side. The biting rotary body of the biting machine 41 described above is located slightly in front of the introduction port 55.

A rotating body 6 is accommodated in the casing 5. The rotating body 6 is driven by driving power from a drive mechanism of a self-propelled traveling vehicle (not shown). The crusher A1 alone may have a prime mover.
A circular rotating plate 61 and disks 62, 63, 64 having a diameter smaller than that of the rotating plate 61 and having the same diameter are fixed to the rotating shaft 60 of the rotating body 6 at a predetermined interval in the axial direction.

  The rotary plate 61 is provided with blade edges 67 in almost the diameter line direction at two positions sandwiching the rotary shaft 60. A fixed blade body 68 as a cutter is fixed to each blade edge 67 along the edge portion.

Between the rotating plate 61 and the disks 62, 63, 64, there are provided rotating blade bodies 65, which are a large number of cutters, at four positions at regular intervals in the circumferential direction. The rotary blade body 65 is made of metal, and is a plate-like body that is substantially rectangular and has four corners protruding. The rotating blade body 65 is rotatably attached to the base side, and can be crushed or crushed more finely by hitting an object to be crushed.
The disk 64 at the left end is provided with a plurality of fan plates 66, and an air flow is generated by the rotation of the rotating body 6, and air can be discharged toward the discharge port 520 of the casing 5.

An opening control device 7 that adjusts the size of the discharge port 520 is disposed at the discharge port 520 connected to the discharge duct 53. The discharge port 520 has a rectangular shape in plan view.
The opening control device 7 includes a rectangular blocking plate 70 that can open and close the entire discharge port 520. One end side of the sealing plate 70 is fixed to the rotating shaft 71, and a hollow body 77 having a shape that does not sandwich crushed material or the like is provided on the upper side. A worm wheel 72 is fixed to the left end of the rotating shaft 71. The worm wheel 72 is engaged with a worm 73 driven by a pulse motor 74.

According to this structure, the opening area of the discharge port 520 can be adjusted by adjusting the angle of the blocking plate 70 by driving the pulse motor 74. The discharge port 520 is fully closed when the sealing plate 70 is in a horizontal state, and is fully opened in a vertical state.
In addition, a rotation sensor 75 that detects the number of rotations is provided on the bearing portion of the rotating shaft 60 of the rotating body 6. Further, a pressure sensor 76 for detecting the pressure (atmospheric pressure) in the casing 5 is provided on the upper portion of the casing 5. The angle of the sealing plate 70, that is, the opening area of the discharge port 520 is controlled based on detection results by the rotation sensor 75 and the pressure sensor 76.

(Function)
The operation of the crusher A1 according to the present invention will be described with reference to FIGS.
The rotating body 6 of the crusher A1 is driven, and for example, tree branches and the like are introduced from the tree branch introduction device 3, and grass and the like are introduced from the grass and leaf introduction device 4. Tree branches and the like are crushed by a fixed blade body 68 provided on a rotating plate 61 of the rotating body 6, and grasses and the like are crushed by a rotating blade body 65 of the rotating body 6, and the casing 5 and the rotating body 6 constituting the crushing portion. It is taken in inside. And it stays in the inside of the casing 5 and the rotary body 6 for a short time, and is further finely crushed by the synergistic action of the fixed blade body 68, the rotary blade body 65 or the casing 5 having multiple surfaces.

  For example, even if grass is introduced into the fixed blade 68 provided on the rotating plate 61 and processing is attempted, the grass is soft and the rotating plate 61 also interferes with the cutting and feeding of the grass. Can not. On the other hand, by introducing the grass into the rotating blade body 65 side, there is nothing that obstructs the introduction of the grass like the rotating plate 61, so the grass can be fed smoothly.

The crushed material from which tree branches, grasses and the like are crushed is discharged to the outside through the discharge port 520 together with air by the air flow generated by the rotating body 6 (particularly the fan plate 66).
The number of rotations of the rotating shaft 60 of the rotating body 6 is always detected by the rotation sensor 75 (or at regular intervals). The pressure of the air in the crushing part (in the casing 5 and the rotating body 6) of the crusher A1 is constantly detected (or at regular intervals) by the pressure sensor 76.

  If the rotation speed detected by the rotation sensor 75 is lower than the reference rotation speed, the sealing plate 70 is rotated in the opening direction to increase the size of the discharge port 520 and increase the particle size of the crushed material. If the detected rotation speed is higher than the reference rotation speed, the sealing plate 70 is rotated in the closing direction to reduce the size of the discharge port 520 and reduce the particle size of the crushed material.

  If the pressure detected by the pressure sensor 76 is higher than the reference pressure, the sealing plate 70 is rotated in the opening direction to increase the size of the discharge port 520 and increase the particle size of the crushed material. If the detected pressure is lower than the reference pressure, the sealing plate 70 is rotated in the closing direction to reduce the size of the discharge port 520 and reduce the particle size of the crushed material.

In actual control, the above control is performed when either the detected rotation speed of the rotary shaft 60 or the pressure in the casing 5 deviates from the standard, so that the other does not deviate from the standard value. The above control may be performed. It is also possible to perform the above control only when both of them are out of the reference value.
Further, the control by the opening control device 7 as described above can be canceled and the sealing plate 70 can be manually opened and closed for adjustment.

FIG. 5 is a schematic front view showing a second embodiment of the crusher according to the present invention,
FIG. 6 is a schematic plan view of the crusher.

The crusher A2 is different in the structure of the opening control device 8 from the opening control device 7 of the crusher A1, and the other parts have the same structure.
The sealing plate 80 arranged in the discharge port 520 slides in the horizontal direction along the slide guide 81 to adjust the size of the discharge port 520. The sealing plate 80 is provided with a female screw body 82 on one end side, and a screw bolt 83 fixed to the rotating shaft of the pulse motor 84 is screwed into the female screw body 82.
According to this structure, the opening area of the discharge port 520 can be adjusted by moving the sealing plate 80 forward and backward by driving the pulse motor 84.
In addition, since the main effect | action of the crusher A2 is substantially equivalent to the said crusher A1, description is abbreviate | omitted.

  FIG. 7 is a main part explanatory view showing another embodiment of a rotating body of a crusher according to the present invention, (a) is a view of a rotating body having a rotating blade body from the front, (b) is It is a side view of a rotary blade body.

The structure of the rotating blade body 69 of the rotating body 6a is different from the rotating blade body 65 of the crusher A1, and is formed in a curved plate shape with a concave surface facing the rotational movement direction side of the rotating body 6. .
According to this rotating blade body 69, the rotating blade body 69 moves so as to embrace the air by the rotation of the rotating body 6, whereby a stronger air flow can be generated. Further, the rotating blade body 69 can more reliably crush the leaves and leaves.
Since the main action of the crusher having the rotating body 6a is substantially the same as that of the crusher A1, description thereof will be omitted. The rotating blade body 69 can be mixed with the rotating blade body 65 of the crusher A1.

Note that the terms and expressions used in the present specification are merely explanatory and not restrictive, and do not exclude terms and expressions equivalent to the above terms and expressions. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.

BRIEF DESCRIPTION OF THE DRAWINGS Front view schematic explanatory drawing which shows 1st Embodiment of the crusher which concerns on this invention. The schematic plan view of a crusher. The AA schematic sectional drawing in FIG. 4 which shows the structure of the rotary body of a crusher. BB schematic sectional drawing in FIG. 3 which shows the structure of the rotary body of a crusher. Front view schematic explanatory drawing which shows 2nd Embodiment of the crusher which concerns on this invention. The schematic plan view of a crusher. It is principal part explanatory drawing which shows other embodiment of the rotary body of the crusher which concerns on this invention, (a) is the figure which looked at the rotary body which has a rotary blade body from the front, (b) is a rotary blade. Side view of the body.

Explanation of symbols

A1 crusher 1 frame 3 tree branch introduction device 30 guide body 31 biting machine 4 grass and leaf introduction device 40 guide body 41 biting machine 5 casing 51 lower casing 52 upper casing 520 discharge port 500 side plate 53 discharge duct 54 introduction port 55 Introducing port 6 Rotating body 60 Rotating shaft 61 Rotating plate 62, 63, 64 Disc 65 Rotating blade body 66 Fan plate 67 Blade opening 68 Fixed blade body 7 Opening control device 70 Sealing plate 71 Rotating shaft 72 Warm wheel 73 Warm 74 Pulse Motor 75 Rotation sensor 76 Pressure sensor 77 Hollow body A2 Crusher 8 Opening control device 80 Blocking plate 81 Slide guide 82 Female screw body 83 Screw bolt 84 Pulse motor 6a Rotating body 69 Rotating blade body

Claims (13)

In what sends the crushed material fragmented in the crushing part (5,6) from the crushing part (5,6) together with air,
When reducing the size of the crushed material, increase the residence time of the crushed material in the crushing part (5, 6). When increasing the size of the crushed material, crushing in the crushing part (5, 6) A method of adjusting the size of a crushed material, characterized by shortening the residence time of the material. The adjustment of the residence time is characterized by reducing the size of the outlet (520) when increasing the residence time, and increasing the size of the outlet (520) when shortening the residence time.
The method to adjust the magnitude | size of the crushed material of Claim 1. By adjusting the resistance to the circulating air at the outlet (520) through which the air containing the crushed material flows, and adjusting the time that the material to be crushed stays in the crushed part (5, 6), It is characterized by adjusting the grain size of
A method for adjusting the particle size of crushed material in a crusher. Adjust the particle size of the crushed material by adjusting the size of the outlet (520) through which the air containing the crushed material flows and adjusting the time that the material to be crushed stays in the crushing section (5, 6). It is characterized by
A method for adjusting the particle size of crushed material in a crusher. Detect the pressure of the air in the crushing part (5, 6) of the crusher, and if the detected pressure is higher than the reference pressure, increase the size of the outlet (520) so that it is lower than the reference pressure. For example, the discharge port (520) is controlled to be reduced in size.
The particle size adjustment method of the crushed material in the crusher of Claim 4. The number of rotations of the rotating body (6) having the cutter (65, 68) is detected, and if the detected number of rotations is lower than the reference number of rotations, the size of the discharge port (520) is increased and becomes the reference If it is higher than the number of revolutions, it is characterized by performing control to reduce the size of the discharge port (520),
The particle size adjustment method of the crushed material in the crusher of Claim 4 or 5. A rotating body (6) having a cutter (65,68) for crushing or slicing the workpiece;
A casing (5) for rotatably accommodating the rotating body (6), and
An introduction device (3,4) for introducing the object to be crushed toward the cutter (5, 6);
An outlet (520) through which air containing crushed material flows,
With
It is configured so that the size of the discharge port (520) can be adjusted,
Crushing machine. The cutter provided on the rotating body (6) includes the required number of fixed blade bodies (68) provided on the rotating plate (61) attached to the rotating shaft (60), and the axial direction of the rotating shaft (60). It consists of a required number of rotating blades (65) that are arranged essentially in parallel and at a required distance from the rotating shaft (60) and are mounted so that the base side can be rotated or rotated,
The introduction device is composed of a tree branch introduction device (3) directed to the fixed blade body (68) and a grass and leaf introduction device (4) directed to the rotating blade body (65). ,
The crusher according to claim 7. The rotating blade body includes a curved plate-shaped blade body (69) with a concave surface facing the rotational movement direction side of the rotating body (60),
The crusher according to claim 8. Detect the pressure of the air in the crushing part (5, 6) of the crusher, and if the detected pressure is higher than the reference pressure, increase the size of the outlet (520) so that it is lower than the reference pressure. For example, it is provided with a control device that performs control to reduce the size of the discharge port (520),
The crusher according to claim 7, 8 or 9. The number of rotations of the rotating body (6) having the cutter (65, 68) is detected, and if the detected number of rotations is lower than the reference number of rotations, the size of the discharge port (520) is increased and becomes the reference If it is higher than the number of rotations, it is provided with a control device that performs control to reduce the size of the discharge port (520),
The crusher according to claim 7, 8, 9 or 10. Of the casing (5), the inner surface along the rotation direction of the rotating body (6) is a polyhedral shape,
12. The crusher according to claim 7, 8, 9, 10 or 11. A crusher (A1, A2, A3) according to claim 7, 8, 9, 10, 11 or 12 is mounted on a self-propelled traveling vehicle.
Crushing work vehicle.

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