JP2000015130A - Wood crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood crusher in which the outer face of a scattering preventive cover is positioned below the upper end of a rotary tab during transportation, almost coincidently with or inside the outer periphery of the tab to improve the transportability as a housing attitude. SOLUTION: A four-joint link is constituted of two joints Q1 and Q2 provided on a scattering preventive cover 7, the two joints Q3 and Q4 furnished on a strut 15 erected on a base 2, a first link 16 connecting one joint Q1 on the cover 7 and one joint Q3 on the strut 15 and a second link 17 connecting the other joint Q2 on the cover 7 and the other joint Q4 on the strut 15. The cover 7 is made movable between the housing attitude that the outer face of the cover 7 is positioned below and inside the upper end of a tab 6 and the installation position that the lower end edge of the cover 7 is positioned closely to the upper end of the tab 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a wood crusher,
In particular, it relates to a wood crusher for crushing wood into small pieces of wood.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, a wood crusher 50 has an engine 52 having a crankshaft disposed on a base 51 in the longitudinal direction of the base 51, and a propeller shaft 53 by the engine 52. It has a crusher 54 in which a driven shaft to be driven is arranged in the longitudinal direction of the base 51.
In addition, this example machine is a self-propelled type. Above the crusher 54 on the base 51, a funnel-shaped rotary tab 55 for guiding the wood introduced from the outside to the crusher 54 is installed.
As shown in FIG. 5, a shell-like shape having a lower edge adjacent to the upper end of the rotary tab 55 is opposed to the scattering direction R of the piece of wood crushed by the rotation of the crusher 54, as shown in FIG. The scattering prevention cover 56 is arranged. As shown in FIG. 5, the scattering prevention cover 56 is pivotally supported on the tip of a piston rod 57a of a hydraulic cylinder 57 erected on the base 51. The pieces of wood crushed by the crusher 54 are discharged to the outside from below the crusher 54 via the conveyor 58 as shown in FIG.

When transporting the wood crusher 50, the height H2 of the upper end of the rotary tub 55 is usually set as the transport limit value.
5 must be lower than the upper end height H2. At this time, as shown in FIG. 5, after the piston rod 57a of the hydraulic cylinder 57 is extended so that the lower end edge of the scattering prevention cover 56 rises slightly above the upper end of the rotary tab 55, human power or hydraulic pressure is applied. After being rotated in the direction of arrow A by the motor, it shrinks in the direction of arrow B and lowers the scattering prevention cover 56 to the position indicated by the two-dot chain line.

[0004]

However, the prior art has the following problems. (1) In order to keep the height of the shatterproof cover 56 within the transport limit when transporting the wood shredding machine 50, it is necessary to rotate the shatterproof cover 56 in the direction of the arrow A with a human power or a hydraulic motor. The vehicle 50 extends in the width direction of the machine 50 (indicated by a two-dot chain line in FIG. 5), so that the vehicle width is increased and transportability is reduced. (2) The total length L of the wood crusher 50 because the conveyor 58 is long
1 becomes longer, so that the transportability of the wood crusher 50 during transport is reduced.

The present invention has been made in view of the above problems, and has as its object to provide a wood crusher with improved transportability during transportation.

[0006]

In order to achieve the above object, a wood crusher according to the first invention of the present application comprises a crusher on a base, and an upper portion of the crusher from outside. A rotary tab that guides the introduced wood to the crusher and a column near the outside of the rotary tub are installed, and close to the upper end of the rotary tub facing the scattering direction of the pieces of wood crushed by the crusher. In a wood crusher having a lower end edge and a shell-shaped scattering prevention cover supported by a column, two nodes provided on a scattering prevention cover and two nodes provided on a column standing on a base. A first link connecting one node on the scatter prevention cover to one node on the support, and a second link connecting the other node on the scatter prevention cover to the other node on the support. We construct a knot link, and this four-link link The storage position in which the outer surface of the shatterproof cover is located below the upper end of the rotatable tab and substantially equal to or inside the outer periphery of the rotatable tab, and the lower edge of the shatterproof cover is close to the upper end of the rotatable tab It is characterized by being movable between the installation position.

According to the first aspect of the present invention, the shatterproof cover has a storage position in which the outer surface is located below the upper end of the rotary tab and is substantially equal to or inside the outer periphery of the rotary tab, and the lower edge of the shatterproof cover. Is movably regulated by the four-bar link between the rotary tab and the installation position near the upper end of the rotary tab.
For this reason, by setting the scattering prevention cover in the retracted position when transporting the wood crusher, the vehicle height is almost the same as the height of the rotary tab, and the vehicle width is inside the rotary tab, so the vehicle width is increased. Never. Therefore, the transportability of the wood crusher is improved. The operation is also simplified by mounting the hydraulic cylinder.

The wood crusher according to the second invention of the present application is a
In the present invention, the base has a first conveyor whose base end is supported, and is rotatably supported in the longitudinal direction of the first conveyor in the vertical direction and is folded toward the crusher side. Is lower than the upper end of the rotary tab.
It is characterized by having a conveyor.

According to the second aspect of the present invention, when the second conveyor of the wood crusher is folded toward the crusher, it is located below the upper end of the rotary tub, and the size of the wood crusher in the longitudinal direction is also reduced. For this reason, maneuverability at the time of transport of the wood crusher is improved, and transportability by a trailer or the like is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to FIGS. 1 and 2, an engine 3 is mounted on one end of a base 2 of a self-propelled wood crusher 10 equipped with a traveling crawler 1 in a direction in which a crank axis direction is perpendicular to a longitudinal direction of the base 2. Is done. A suction-type cooling fan 4 is installed at one end of the engine 3 in the crankshaft direction, and a hydraulic pump U1 is installed at the other end. The hydraulic pump U1 is connected to an operation valve U3 via a line U2, and the operation valve U3 is connected to a hydraulic motor U5 via a line U4.
Connected to. From the hydraulic pump U1 to the hydraulic motor U
5 constitutes a hydraulic drive device. The crusher 5 driven in the clockwise direction (R direction in FIG. 1) by the hydraulic motor U5 is installed in such a direction that the drive shaft thereof is in the longitudinal direction of the base 2.
At the upper part of the crusher 5, a funnel-shaped rotary tab 6 for guiding the wood introduced from the outside to the crusher 5 is installed rotatably in the B direction. The bottom of the rotary tub 6 is a fixed wall that does not rotate, and an opening where the blade of the crusher 5 is exposed is formed in the eccentric position of the rotary tub 6 in the fixed wall.
The piece of wood crushed by the blade of the crusher 5 exposed at the opening scatters in the direction of the scattering prevention cover 7.

In FIG. 3, two nodes Q1 and Q2 provided on the scattering prevention cover 7 and a support 15 standing on the base 2 are shown.
, A first link 16 connecting the node Q1 on the scattering prevention cover 7 and the node Q3 on the column 15, a node Q2 on the scattering prevention cover 7, and the column 15
The second link 17 connecting the upper node Q4 forms a four-node link. Due to this four-bar link, the outer surface of the scattering prevention cover 7 is located below the upper end of the rotary tab 6 and is substantially equal to or inside the outer periphery of the rotary tab 6 (shown by a two-dot chain line). The lower edge of the prevention cover 7 is movably restricted between an installation position (shown by a solid line) close to the upper end of the rotary tab 6. Also, the second link 1
The hydraulic cylinder 18 is mounted on the node Q5 on the support 7 and the node Q6 on the support 15.

Returning to FIG. 2, a base portion of the first conveyor 8a is supported on the base 2 below the crusher 5, and a longitudinal portion of the first conveyor 8a has an overhang beam fixed to the base 2. 9 and the suspension beam 11. First
The base end of the second conveyor 8b is rotatably supported in the longitudinal direction of the conveyor 8a by a pin P1 so as to be vertically rotatable. One end of an arm 8c is fixed to a base end portion of the second conveyor 8b, and a link 8d is rotatably mounted at one end to a distal end portion of the first conveyor 8a by a pin P2. The ends are connected with a pin P3,
A hydraulic cylinder 8e is mounted on the pin P3 and the pin P4 on the overhang beam 9. Incidentally, a hammer mill or the like is used as the crusher, but a fixed blade type may be used. In this embodiment, the vehicle of the traveling crawler 1 will be described, but it is needless to say that the vehicle may be of a wheeled type.

The operation of the above embodiment will be described. Hydraulic cylinder 18 with extension stopper inside
Is extended to the stroke end, the lower edge of the scattering prevention cover 7 moves to the installation position close to the upper end of the rotary tab 6 as shown by a solid line in FIG. When the hydraulic cylinder 18 having a contraction stopper therein is contracted to the stroke end, the shatterproof cover 7 has the outer surface located below the upper end of the rotatable tab 6 and located substantially equal to or inside the outer periphery of the rotatable tab 6. Move to posture. As described above, the scattering prevention cover 7 can be moved between the installation position and the storage position by the four-bar links only by extension and contraction of the hydraulic cylinder 18. For this reason, the transportability of the wood crusher 10 is improved by setting the scattering prevention cover 7 in the retracted posture when the wood crusher 10 is transported.

In FIG. 2, the hydraulic cylinder 8e is contracted to move the second conveyor 8b to the pin P1 as shown by a two-dot chain line.
When bent around the crusher 5 side, the ground height H1 of the second conveyor 8b is lower than the ground height H2 at the upper end of the rotary tub 6, and the longitudinal dimension of the wood crusher 10 is also L2.
To L3. Therefore, the wood crusher 10 is within the transport limit dimension, and transportability at the time of transport is improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a view taken in the direction of arrow V in FIG. 2;

FIG. 4 is a diagram showing a conventional technique.

FIG. 5 is a view as seen in the direction of arrow S in FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Crawler track 2 ... Base 3 ... Engine 4 ... Propeller shaft 5 ... Crusher 6 ... Rotating tab 7 ... Splash prevention cover 8 ... Conveyor 8a 1st conveyor 8b 2nd Conveyor, 9: Overhang beam, 10: Wood crusher, 11: Hanging beam, 15: Post, 16: First link, 17: Second link, 18: Hydraulic cylinder.

Claims (2)

[Claims] 1. A crusher (5) and a crusher on a base (2).
At the top of (5), a rotary tab (6) for guiding the wood introduced from the outside to the crusher (5) and a column (15) close to the outside of the rotary tub (6) are installed, and the crusher ( A shell-shaped scattering prevention cover (5) having a lower edge near the upper end of the rotary tab (6) facing the scattering direction (Ra) of the crushed wood pieces and supported by the column (15). In the wood crusher with (7), two nodes (Q1, Q2) provided on the shatterproof cover (7) and two nodes (Q3) provided on the support (15) erected on the base (2) , Q
4) and one node (Q1) on the shatterproof cover (7)
(15) First link (16) connecting one of the above nodes (Q3)
And the other node (Q2) on the shatterproof cover (7) and the strut (15)
The second link (17) connecting the other upper node (Q4) forms a four-bar link, and the outer surface of the shatterproof cover (7) is connected to the upper end of the rotary tab (6) by the four-bar link. The retracted position is located below and substantially equal to or inside the outer circumference of the rotary tab (6), and the installation position where the lower edge of the shatterproof cover (7) is close to the upper end of the rotary tab (6). A wood crusher characterized by being movable between 2. The apparatus according to claim 1, further comprising a first conveyor (8a) having a base end supported by a base (2), and rotatable vertically in a longitudinal direction of the first conveyor (8a). Height when pivoted and bent toward the crusher (5) (H1)
A wood conveyor having a second conveyor (8b) whose height is lower than the height (H2) of the upper end of the rotary tab (6).