JP2007283160A - Wood crushing apparatus and its deflector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wood crushing apparatus and its deflector, capable of smoothly supplying wood charged into a tub toward a crusher without preventing rotation of the tub. <P>SOLUTION: This wood crushing apparatus 10 is constituted so that wood charged into the tub 2 is fed toward the crusher 1 and crushed, while relatively rotating the nearly cylindrical tub 2 to the crusher 1. The deflector 15 with a roughly triangular section along the rotation direction of the tub 2 is provided in the downstream side in the rotation direction of the tub 2 of an opening 7a which is formed at a bottom plate 7 of the tub 2 and exposes the crusher 1. The deflector 15 supports the wood above the face of the bottom plate 7, at an apex 15b of the nearly triangular section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wood crushing apparatus and a deflector for the same, which supplies and crushes wood to a crushing part while rotating a tab into which the wood is introduced via a chain, a belt, or the like.

Conventionally, a self-propelled wood crushing device (wood crushing machine) has been used as a wood crushing device for crushing wood.
This self-propelled wood crusher has as its main components a rotary crusher (crush body) such as a hammer mill, and a tab (rotary tab) that rotates around a rotating shaft and supplies wood to the crusher. It has. A hopper is attached to the top of the tab, and wood is supplied into the tab by putting wood into the hopper. The wood crushed in the crusher is supplied to the lower side of the crusher and discharged to the outside by the transport conveyor.

  The tab is rotationally driven via a tab rotating device. The tab rotating device includes a friction member formed by a rubber body provided along the outer peripheral surface of the tab, a chain (belt) wound around the friction member, and a hydraulic motor that rotationally drives the chain. Contains. An idler to which a tensile force is applied by a spring member abuts on the outer surface of the chain and applies tension to the chain.

Further, a deflector is provided on the bottom surface of the tab on the downstream side of the opening in the normal rotation direction of the tab. This deflector has a function of accelerating the movement of the wood with respect to the opening of the bottom surface of the tab exposed by the crusher during the forward rotation of the tab and dispersing the wood that has become blocked in the tab during the reverse rotation. (See Patent Document 1).
For example, the deflector 105 attached to the tab grinder 100 disclosed in Patent Document 1 is disposed on the side of the opening 103 a formed in the bottom surface 103 of the tab 102 so as to cover a part of the crusher 101. The tip side is extended (see FIG. 9). As a result, when the tab 102 rotates forward, the crushed material is moved by the rotation of the crusher 101 on the tip side of the deflector 105 extending to the top of the crusher 101 while efficiently moving the wood with respect to the crusher 101. Can be prevented from jumping upward or the like.
US Pat. No. 5,803,380 (registered September 8, 1998)

However, the conventional tab grinder deflector has the following problems.
That is, in the deflector 105 of the tab grinder 100 disclosed in the above publication, as shown in FIG. 9, a tip portion extending so as to cover a part of the crusher 101 is formed. In addition, the wood may be caught on the tip of the deflector 105 and become a load that impedes the rotation of the tab 102. When such a load on the rotation of the tab 102 increases, it is necessary to reversely rotate the tab 102 each time, and it may not be possible to efficiently crush the wood.

  An object of the present invention is to provide a wood crushing apparatus and a deflector for the wood crusher that can smoothly supply the wood introduced into the tub in the direction of the crusher without hindering the rotation of the tab.

  A wood crushing apparatus according to a first invention includes a crushing part for crushing wood, a substantially cylindrical tab, a bottom plate, and a deflector. The substantially cylindrical tab feeds wood in the direction of the crushing part while rotating relative to the crushing part around the rotation axis above the crushing part. The bottom plate forms the bottom surface of the tab and has an opening that exposes the crushing portion. The deflector is disposed downstream of the opening in the normal rotation direction of the tab in the bottom plate, and the cross section along the rotation direction of the tab is substantially triangular. Support above the surface.

  Here, in a wood crushing apparatus that crushes wood with a crusher provided inside the tab while rotating the tab into which the wood is thrown relative to the crusher, the tab of the bottom plate having an opening that exposes the crusher A deflector having a substantially triangular cross-sectional shape along the rotation direction of the tab is provided downstream of the opening in the rotation direction. And this deflector supports wood in the substantially triangular top part.

Thus, by providing a deflector having a substantially triangular cross section along the rotation direction of the tab, it is possible to prevent the wood moving in the tab by the rotation of the tab from being caught by the deflector and applying a load to the rotation of the tab. Can do. Furthermore, by supporting the wood above the bottom plate surface by the deflector, it is possible to effectively reduce the load on the crusher due to the weight of the wood applied to the crusher.
As a result, the load applied to the tab and the crusher can be reduced and the wood can be crushed while smoothly moving the wood put into the tub without restricting the movement more than necessary.

  A wood crushing apparatus according to a second invention is the wood crushing apparatus according to the first invention, wherein the deflector has an end on the outer peripheral side as viewed from the rotation center of the tab in plan view, and the inner peripheral surface of the tab. It is formed so as to be substantially parallel.

Here, when the cross-sectional shape along the rotation direction of the tab is a substantially triangular deflector, the end on the outer peripheral side when viewed from the rotation center of the tab, that is, the portion facing the inner peripheral surface of the tab is in relation to the inner peripheral surface of the tab. Are formed in parallel.
As a result, when the wood to be crushed in the tab is being stirred while rotating the tab, the wood that has moved between the inner peripheral surface of the tab and the deflector is smoothly moved, and the wood is caught during that time. Can be avoided. As a result, it is possible to reduce the load of rotation of the tabs and efficiently crush the wood.

A wood crushing apparatus according to a third invention is the wood crushing apparatus according to the first or second invention, wherein the inclination angle of the inclined surface constituting the substantially triangular cross section of the deflector is not less than 15 degrees and not more than 40 degrees. An angle within the range of.
Here, the preferable angle range is specified as the angle of the inclined surface forming the deflector having a substantially triangular cross-sectional shape along the circumferential direction.

  For example, if the tilt angle of the deflector is too steep, the wood that moves due to the rotation of the tab will be too hindered by the deflector, and the wood thrown into the tab will be smoothly fed to the crusher. There is a problem that becomes difficult. On the other hand, if the inclination angle is too slow, the function as a deflector that reduces the weight of the wood that is placed on the crusher cannot be sufficiently achieved, and the load on the crusher is increased. is there.

  Thereby, by forming the deflector so as to be in the above-mentioned angle range, the load on the crusher can be reduced without restricting the movement of the wood put in the tab more than necessary, and the function as a deflector Can be fully exhibited.

A wood crushing apparatus according to a fourth aspect of the present invention is the wood crushing apparatus according to any one of the first to third aspects of the present invention, further comprising a lid that covers the opening portion of the substantially cylindrical upper portion of the tab. Yes.
Here, a lid that covers the opening of the upper portion of the tab that is rotated by loading wood is provided.
Usually, the crusher which crushes the timber put in the tub crushes the timber while rotating like a hammer mill. At this time, in the case where the crusher rotates around the rotation shaft arranged substantially in the horizontal direction, there is a possibility that the piece of wood crushed by the crusher will jump upward as it rotates.

  In a conventional wood crusher, in order to prevent the wood pieces from jumping upward due to the rotation of the crusher, the shape and arrangement of the deflector are determined so that the tip of the deflector is placed on the crusher. Was. However, in such a deflector, there is a possibility that the wood that moves in the tab due to the rotation of the tab is caught on the tip of the deflector and becomes a load of the rotation of the tab.

In the wood crushing apparatus of the present invention, a lid that covers the upper opening of the tab is provided in order to prevent the wood pieces from popping up as the crusher rotates.
Accordingly, even when a deflector having a substantially triangular cross section as described above is provided, it is possible to prevent the wooden pieces from being scattered outside the tab.

A wood crushing apparatus according to a fifth aspect of the present invention is the wood crushing apparatus according to any one of the first to fourth aspects of the invention, wherein the substantially cylindric inner peripheral surface of the tab is put into the tab. A plurality of protrusions for stirring the wood are formed.
Here, the protrusion part for stirring a wood effectively by rotation of a tab is formed in the internal peripheral surface of the tab into which the wood as a to-be-crushed object is thrown.
Normally, when such protrusions are provided on the inner peripheral surface of the tab, the advantage of effectively stirring the wood by rotating the tab is obtained, but conversely other protrusions in the tab such as a deflector There is a risk of timber being pinched between the object and the rotation of the tab.

In the wood crushing apparatus of the present invention, as described above, a deflector having a substantially triangular cross section along the rotation direction of the tab is provided.
Thereby, even when the projection which may cause the load of rotation of a tab is formed in the internal peripheral surface of a tab, wood can be sent toward the crusher, rotating a tab smoothly without a load.

  The deflector of the wood crushing apparatus according to the sixth aspect of the invention is a crushing unit for crushing wood, and an approximate feed-in of wood in the direction of the crushing unit while rotating relative to the crushing unit around the rotation axis above the crushing unit. A deflector that is mounted on a wood crushing device that includes a cylindrical tab and a bottom plate that forms the bottom surface of the tab and has an opening that exposes the crushing portion, and includes a support portion. The deflector is disposed downstream of the opening in the normal rotation direction of the tab in the bottom plate, the cross section along the rotation direction of the tab is substantially triangular, and the wood put into the tab is the surface of the bottom plate. A support portion is provided to support the upper side.

  Thus, by providing a deflector having a substantially triangular cross section along the rotation direction of the tab, it is possible to prevent the wood moving in the tab by the rotation of the tab from being caught by the deflector and applying a load to the rotation of the tab. Can do. Furthermore, by supporting the wood above the bottom plate surface by the deflector, it is possible to effectively reduce the load on the crusher due to the weight of the wood applied to the crusher.

  As a result, the load applied to the tab and the crusher can be reduced and the wood can be crushed while smoothly moving the wood put into the tub without restricting the movement more than necessary.

  According to the wood crushing apparatus according to the present invention, the load applied to the tab and the crusher is reduced and the wood is crushed while smoothly moving without restricting the movement of the wood put into the tub more than necessary. be able to.

A wood crushing apparatus according to an embodiment of the present invention will be described below with reference to FIGS.
As for “front” and “rear” used in the following description, the direction in which the conveyor 6 protrudes is indicated as “front” and the opposite side is indicated as “rear”.
[Configuration of the whole wood crushing apparatus 10]
The wood crushing apparatus 10 according to the present embodiment is a self-propelled wood crushing apparatus as shown in FIGS. 1 to 3, and includes a crusher 1, a substantially cylindrical tab 2, a machine base 3, A traveling body 4, a hopper 5, and a conveyor 6 are provided.

The crusher 1 is a crushing device such as a hammer mill driven by hydraulic pressure to finely crush the wood block supplied from the tab 2, and is disposed on a machine base 3 to which a traveling body 4 is attached. Yes.
The tab 2 is arranged on the rear side of the machine base 3, and is rotated (forward and reverse) around the axis by a drive unit 30 (see FIG. 4) to be described later. Supply wood for 1 A hopper 5 is attached above the tab 2, and wood is supplied into the tab 2 by putting wood into the hopper 5.

The machine base 3 is attached to the traveling body 4, and the crusher 1, the tab 2, the hopper 5 and the like are placed on the upper surface thereof.
The traveling body 4 advances and reverses the wood crushing device 10 by rotating the crawler belts wound around the left and right ends of the traveling direction.
The hopper 5 is provided with an inlet 8 that is inclined with respect to a horizontal plane, and is provided with a scattering prevention cover (lid) 9 that covers a part of the inlet 8. The insertion port 8 and the anti-scattering cover 9 formed in the hopper 5 are attached to the machine base 3 via the support column 2a so that the tab 2 does not rotate with the tab 2 even if the tab 2 rotates.

  The conveyor 6 has a substantially horizontal member disposed on the lower side of the crusher 1, receives a crushed material of a predetermined particle size that has passed through a discharge hole of a predetermined size, and discharges it to the outside. In addition, as the conveyor 6, you may comprise by one belt and a single drive motor, and may use the structure which drives a several belt with each drive motor.

In the wood crushing device 10, the wood is crushed by the crusher 1, the crushed material (wood pieces) is supplied to the lower side of the crusher 1, and is discharged to the outside by the transport conveyor 6.
[Configuration of tab 2 and its surroundings]
(Configuration of tab 2)
As shown in FIG. 4, the chain 11 is wound around the outer peripheral surface of the tab 2 along a substantially horizontal direction, and the rotational driving force from the drive unit 30 is transmitted through the chain 11 to be rotationally driven. It is a substantially cylindrical member. The tab 2 supplies wood to the crusher 1 disposed below the tab 2 while repeating forward rotation (see the arrow shown in FIG. 4) and reverse rotation according to the rotation direction of the drive motor M. Further, as shown in FIGS. 4 and 5, the outer peripheral surface of the tab 2 includes a pair of guide outer flange portions 20a and 20b opposed to each other at the lower end portion thereof, and an upper guide outer flange portion 20a. Further, a sprocket 12 around which the chain 11 is wound is disposed. Further, as shown in FIG. 4, a horizontal roller 21 that guides the rotation of the tab 2 and a vertical roller 22 that supports the tab 2 are disposed at a position adjacent to the outer peripheral surface of the tab 2.

As shown in FIGS. 4 and 5, each of the guide outer flange portions 20a and 20b is configured by a flat plate-like main body and a support piece that supports the main body, and the vertical roller 22 includes the guide outer flange portion 20a. , 20b abuts against the main body portion. Four rollers 21 and 22 are arranged along the outer peripheral surface of the tab 2.
As shown in FIG. 4, the horizontal roller 21 is supported on a column 23 erected on a frame 35 attached to the machine base 3 in a state where the roller portion 21 a is rotatable via bearings 24 and 24. ing. And it rolls between the upper and lower guide outer flange portions 20a, 20b provided on the outer peripheral surface of the tab 2.

As shown in FIG. 4, the vertical roller 22 is in a state in which the roller portion can be rotated via bearings 24, 24 on a support shaft provided on a column 23 erected on a frame 35 attached to the machine base 3. The roller portion is in contact with the upper guide outer flange portion 20a to support the tab 2.
Further, as shown in FIG. 4, protrusions 2 a are formed on the inner peripheral surface of the tab 2 at substantially equal intervals in the circumferential direction. This protrusion 2a is a member that extends from the inner peripheral surface of the tab 2 toward the center of rotation of the tab 2 in order to effectively stir the wood thrown into the tab 2 as the tab 2 rotates. Is provided.

(Bottom plate 7)
The bottom plate 7 is a plate material that forms the bottom surface of the substantially cylindrical tab 2 that rotates relative to the crusher 1, and has an opening 7 a that exposes the crusher 1 in the tab 2. The bottom plate 7 is formed separately from the substantially cylindrical tab 2 and is fixedly disposed on the machine base 3 so that it does not rotate together with the tab 2 even if the tab 2 rotates.

Further, as shown in FIG. 4, two rectifying plates 7 b and 7 c are fixedly disposed on the bottom plate 7 immediately upstream of the opening 7 a in the rotation direction of the tab 2.
Further, as shown in FIG. 4, a deflector 15, which will be described later, is fixedly disposed on the bottom plate 7 immediately downstream of the opening 7 a in the rotation direction of the tab 2.
(Configuration of rectifying plates 7b and 7c)
As shown in FIGS. 8A and 8B, the rectifying plates 7b and 7c are arranged in the rotational direction of the tab 2 on the bottom plate 7 which forms the bottom surface of the tab 2 inside the substantially cylindrical tab 2. Is a protrusion having a height of about 80 mm from the surface of the bottom plate 7 placed on the upstream side. The rectifying plates 7 b and 7 c guide the wood that is stirred in the tab 2 as the tab 2 rotates toward the crusher 1 that is exposed from the opening 7 a formed in the bottom plate 7.

Specifically, as shown in FIG. 4, the rectifying plate 7 b disposed on the outer peripheral side of the tab 2 guides wood to the outer peripheral side portion of the crusher 1 and is disposed on the inner peripheral side of the tab 2. The rectifying plate 7 c guides the wood to the inner peripheral side portion of the crusher 1.
(Configuration of deflector 15)
As shown in FIG. 4, the deflector 15 is placed inside the substantially cylindrical tab 2 and on the downstream side in the rotation direction of the tab 2 on the bottom plate 7 that forms the bottom surface of the tab 2. Further, as shown in FIGS. 6 and 7B, the deflector 15 is a member having a substantially triangular cross-sectional shape in the circumferential direction of a circle around the rotation center of the tab 2.

Further, as shown in FIGS. 4, 6, and 7 (a), the deflector 15 includes an outer end portion 15 a, the substantially triangular top portion 15 b, and two inclined surfaces 15 c and 15 d. It is configured.
The outer end portion 15a is an arc-shaped portion centered on the rotation center of the tab 2 included in the deflector 15, and is formed and arranged so as to be parallel to the inner peripheral surface of the tab 2 in plan view. Yes. Thereby, the wood which moves in the tab 2 with the rotation of the tab 2 can be smoothly moved in the tab 2 without being sandwiched between the inner peripheral surface of the rotating tab 2 and the deflector 15. it can.

The top portion 15 b in the substantially triangular cross section is located above the surface of the bottom plate 7 and supports a part of the wood that rests on the crusher 1 exposed so as to protrude from the opening 7 a of the bottom plate 7.
As shown in FIG. 7B, the inclined surfaces 15c and 15d are inclined at substantially the same angle with respect to the surface of the bottom plate 7, and the inclination angle is about 30 degrees. Thereby, at the time of the normal rotation of the tab 2, the movement of the wood can be appropriately controlled without the wood being caught on the inclined surface 15c. Even when the tab 2 is reversed, it is possible to prevent the movement of the wood in the tab 2 more than necessary while appropriately restricting the movement of the wood without being caught on the inclined surface 15d. As a result, it is possible to prevent the timber swirled by the plurality of protrusions 2 a formed on the inner peripheral surface of the tab 2 from being caught between the protrusions 2 a and the deflector 15 and becoming a rotation load of the tab 2. .

In addition, unlike the conventional deflector, the deflector 15 does not have a portion extending to the upper part of the crusher 1. Can not.
Here, in the wood crushing apparatus 10 of this embodiment, a scattering prevention cover (lid part) 9 is provided on the upper part of the hopper 5 corresponding to the upper side of the crusher 1. For this reason, even if the deflector 15 does not accept a piece of wood that protrudes vertically upward from the crusher 1, it is possible to prevent the wood pieces from being scattered outside the apparatus.

(Configuration of chain 11)
The chain 11 is an endless roller chain configured by alternately combining pin links and roller links and connecting them via pins. As shown in FIGS. 4 and 5, the chain 11 is wound around the sprocket 12 provided on the outer peripheral surface of the tab 2 at a predetermined pitch along the circumferential direction and the sprocket 31 of the drive unit 30. The drive motor M shown in FIG. 5 rotates the sprocket 31 to rotate the tab 2. Further, the tension is applied to the chain 11 by the tension applying mechanism 40 in order to always maintain a tension within a predetermined range in a state where the chain 11 is wound around the outer peripheral surface of the tab 2 and the sprocket 31 of the drive unit 30. .

In the wood crushing apparatus 10 of this embodiment, as described above, the tab 11 is rotated while the chain 11 disposed along the outer peripheral surface of the tab 2 is engaged with the sprocket 12 formed on the outer peripheral surface of the tab 2. . For this reason, the rotational force from the drive motor M can be reliably transmitted to the tab 2 via the chain 11.
(Configuration of the drive unit 30)
As shown in FIG. 5, the drive unit 30 that rotationally drives the tab 2 via the chain 11 includes a drive motor (hydraulic motor) M and a sprocket 31 around which the chain 11 is wound. A tension applying mechanism 40 that applies tension to the chain 11 is disposed in the vicinity of the drive unit 30.

  The drive motor M is a rotational drive source for rotating the tab 2 forward or backward, and is disposed at a position other than the position below the wood passage position when the wood is input. Thereby, the fall of the timber etc. to the drive motor M at the time of throwing in the timber can be prevented. As a result, it is possible to prevent the drive of the drive motor M or the like from being dropped due to the fall of wood or the like, the tab 2 can be stably rotated, and the drive motor M can be protected. The service life of the drive unit 30 can be extended.

The sprocket 31 is fixed to the tip portion of the rotation shaft of the drive motor M, and conveys the wound chain 11 in a predetermined direction when the drive motor M rotates.
(Configuration of tension applying mechanism 40)
The tension applying mechanism 40 is a mechanism that applies a predetermined range of tension to the chain 11 wound around the outer periphery of the tab 2, and is arranged so as to be close to the drive unit 30 that drives the chain 11. ing.

[Features of the present wood crushing apparatus 10]
(1)
The wood crushing apparatus 10 according to the present embodiment is a wood that crushes wood by feeding the wood thrown into the tab 2 toward the crusher 1 while rotating the substantially cylindrical tab 2 relative to the crusher 1. As shown in FIG. 4, a cross section along the rotation direction of the tab 2 on the downstream side in the rotation direction of the tab 2 of the opening 7 a from which the crusher 1 formed on the bottom plate 7 of the tab 2 is exposed. A deflector 15 having a substantially triangular shape is provided. And the deflector 15 supports a timber above the surface of the floor board 7 in the top part 15b of a substantially triangular cross section.

  As a result, the inclined surfaces 15 c and 15 d of the deflector 15 come into contact with the wood moving in the tab 2, so that the wood is not caught by the deflector 15 and becomes a load against the rotation of the tab 2. Further, by supporting the timber at the top portion 15 b of the deflector 15, a part of the weight of the timber placed on the crusher 1 can be received by the deflector 15. As a result, the rotational load on the crusher 1 can be reduced while the tab 2 is smoothly rotated.

(2)
In the wood crushing apparatus 10 of the present embodiment, as shown in FIG. 4, the outer end portion 15 a of the deflector 15 in the radial direction of the circle centered on the rotation center of the tab 2 is the same as the inner peripheral surface of the tab 2 in plan view. It arrange | positions so that it may become substantially parallel.
Thereby, when the tab 2 is rotated, it is possible to prevent the wood from being sandwiched in the gap between the tab 2 and the deflector 15 and causing a rotation load of the tab 2. As a result, wood can be fed in the direction of the crusher 1 while the tab 2 is smoothly rotated.

(3)
In the wood crushing apparatus 10 of the present embodiment, as shown in FIGS. 7A and 7B, the two inclined surfaces 15 c and 15 d constituting the cross section of the deflector 15 have an inclination angle with respect to the surface of the floor plate 7. It is formed to be about 30 degrees.
Thereby, the wood which contacts the deflector 15 is not caught by the deflector 15 more than necessary, and the rotation of the tab 2 is not inhibited. As a result, wood can be crushed while the tab 2 is smoothly rotated.

(4)
In the wood crushing apparatus 10 of this embodiment, as shown in FIG. 1, a scattering prevention cover 9 is provided on the upper portion of the hopper 5 attached above the tab 2.
Accordingly, even if the deflector 15 disposed in the vicinity of the crusher 1 does not prevent the wood pieces from jumping out of the crusher 1, the scattering prevention cover 9 can prevent the wood pieces from being scattered outside the apparatus. .

(5)
In the wood crushing apparatus 10 of the present embodiment, as shown in FIG. 4, a plurality of protrusions 2 a are provided on the inner peripheral surface of the tab 2.
Thereby, even when the protrusion 2a for effectively stirring the wood thrown into the tab 2 is provided on the inner peripheral surface of the tab 2, the wood in contact with the deflector 15 is not caught by the deflector 15. It is possible to prevent the wood from being caught between the protrusion 2a of the tab 2 and the deflector 15 and causing a rotation load of the tab 2.

(6)
As shown in FIG. 4, the deflector 15 of the wood crushing apparatus 10 of the present embodiment is provided on the downstream side in the rotation direction of the tab 2 of the opening 7 a where the crusher 1 formed on the bottom plate 7 of the tab 2 is exposed. Yes. And the deflector 15 supports a timber above the surface of the floor board 7 in the top part 15b of a substantially triangular cross section.

  As a result, the inclined surfaces 15 c and 15 d of the deflector 15 come into contact with the wood moving in the tab 2, so that the wood is not caught by the deflector 15 and becomes a load against the rotation of the tab 2. Further, by supporting the timber at the top portion 15 b of the deflector 15, a part of the weight of the timber placed on the crusher 1 can be received by the deflector 15. As a result, the rotational load on the crusher 1 can be reduced while the tab 2 is smoothly rotated.

[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the said embodiment, the example which has the outer end part 15a parallel to the internal peripheral surface of the tab 2 in planar view as the deflector 15 was demonstrated and demonstrated. However, the present invention is not limited to this.

For example, the shape of the deflector 15 in plan view may be a shape having a portion that is not parallel to the inner peripheral surface of the tab 2.
However, in consideration of the possibility of problems such as catching of wood that moves with the rotation of the tab 2 in this non-parallel portion, the outer end portion 15a is formed on the inner peripheral surface of the tab 2 as in the above embodiment. It is more preferable that the deflector 15 is installed so as to be parallel to the surface.

(B)
In the embodiment described above, an example in which the inclined angles of the inclined surfaces 15c and 15d of the deflector 15 having a substantially triangular cross section is 30 degrees has been described. However, the present invention is not limited to this.
For example, in the case of a deflector formed by an inclined surface having an inclination angle of 15 degrees or more and less than 40 degrees, the movement of the wood that moves with the rotation of the tab 2 is restricted more than necessary, and the wood is caught in the deflector 15. However, the same effect as described above can be obtained in that the load applied to the crusher 1 is reduced while smoothly guiding the wood toward the crusher 1.

(C)
In the said embodiment, the example which provided two rail-shaped baffle plates 7b and 7c in the upstream in the rotation direction of the tab 2 with respect to the opening 7a which exposes the crusher 1 in the tab 2 is given. explained. However, the present invention is not limited to this.
Two rail-shaped rectifying plates are not necessarily provided. For example, one rail may be provided or may not be provided. Alternatively, the wood may be guided toward the crusher 1 by three or more current plates.

(D)
In the said embodiment, the example which used the protrusion part whose height from a floor surface is about 80 mm was given and demonstrated as the baffle plates 7b and 7c. However, the present invention is not limited to this.
For example, a protrusion with a height greater than 80 mm or a protrusion with a height less than 80 mm may be used. Furthermore, as a shape of the current plate, the cross section may not be substantially rectangular. For example, the cross section may be elliptical, square, or triangular.

However, from the viewpoint of smoothly feeding to the crusher while appropriately adjusting the flow of the wood thrown into the tub, as in the above embodiment, the cross-section is substantially rectangular and the height from the floor is about It is more preferable to use an 80 mm rectifying plate.
(E)
In the said embodiment, the example which used the hammer mill as the crusher 1 was given and demonstrated. However, the present invention is not limited to this.

  For example, a wood crushing device that crushes wood using a crushing device other than a hammer mill may be used.

  The wood crushing apparatus of the present invention can crush the wood by reducing the load applied to the tab and the crusher while smoothly moving the wood put into the tub without restricting the movement more than necessary. Therefore, the present invention can be widely applied to various apparatuses that form a crushed object by introducing the object to be crushed into a rotating body.

The front view which shows the external appearance of the wood crushing apparatus which concerns on one Embodiment of this invention. The side view of the wood crushing apparatus of FIG. The top view of the wood crushing apparatus of FIG. The top view which shows the structure inside the tab contained in the wood crushing apparatus of FIG. The side view which shows the structure of the tab periphery of FIG. The perspective view which shows the structure of the crusher periphery exposed in the tab of FIG. (A), (b) is the top view and side sectional view which show the shape of the deflector installed in the tab of FIG. (A), (b) is the top view and sectional side view which show the shape of the baffle plate installed in the tab of FIG. The perspective view which shows the structure of the crusher vicinity mounted in the conventional wood crushing apparatus.

Explanation of symbols

1 Crusher (crushing part)
2 Tab 2a Protruding part 3 Machine base 4 Traveling body 5 Hopper 6 Conveyor 7 Bottom plate 7a Opening 7b Current plate 7c Current plate 8 Input port 9 Splash prevention cover (lid)
DESCRIPTION OF SYMBOLS 10 Wood crusher 11 Chain 12 Sprocket 15 Deflector 15a Outer end 15b Top 15c Inclined surface 15d Inclined surface 20a Guide outer flange 20b Guide outer flange 21 Horizontal roller 22 Vertical roller 23 Post 24 Bearing 25 Support shaft 30 Drive part 31 Sprocket 35 Frame 40 Tension applying mechanism M Drive motor

Claims (6)

A crushing section for crushing wood;
A substantially cylindrical tab for feeding the wood in the direction of the crushing part while rotating relative to the crushing part around the rotation axis above the crushing part,
Forming a bottom surface of the tab, and a bottom plate having an opening exposing the crushing portion;
The bottom plate is disposed downstream of the opening in the forward rotation direction of the tab, and the cross section along the rotation direction of the tab is substantially triangular, and the wood put into the tab at the top thereof A deflector that supports the upper side of the bottom plate,
A wood crusher equipped with. The deflector is formed such that an end on the outer peripheral side when viewed from the rotation center of the tab in a plan view is substantially parallel to the inner peripheral surface of the tab.
The wood crushing apparatus according to claim 1. The inclination angle of the inclined surface constituting the substantially triangular cross section of the deflector is an angle within a range of 15 degrees to 40 degrees.
The wood crushing apparatus according to claim 1 or 2. A lid that covers the opening portion of the substantially cylindrical upper portion of the tab;
The wood crushing apparatus of any one of Claim 1 to 3. The substantially cylindrical inner peripheral surface of the tab is formed with a plurality of protrusions for stirring the wood thrown into the tab.
The wood crushing apparatus of any one of Claim 1 to 4. A crushing portion for crushing wood, a substantially cylindrical tab for feeding the wood in the direction of the crushing portion while rotating relative to the crushing portion around a rotation axis above the crushing portion, A bottom plate having a bottom plate having an opening for exposing the crushing portion, and a deflector mounted on a wood crushing device comprising:
The bottom plate is disposed downstream of the opening in the positive rotation direction of the tab, and the cross section along the rotation direction of the tab is substantially triangular,
A support part for supporting the wood put in the tab above the surface of the bottom plate,
Deflector of the wood crusher equipped.

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