JP2774043B2 - Wood crusher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood chip crushing machine for crushing mainly wood pieces such as pruned twigs to facilitate transportation or to use the crushed wood pieces for fuel and fertilizer.

[0002]

2. Description of the Related Art As shown in FIGS. 14 to 16, a conventional wood chip crusher 1 is driven by an engine 9 on a vehicle body 7 having three wheels 3, 3, 3 and a handlebar 5 fixed to a rear portion. The crushing device 11 was mounted. The conventional crushing device 11 was configured as follows. That is, the crushing case 13
A plurality of support shafts 19 penetrating in a direction parallel to the rotation shaft 15 at predetermined radial positions are provided on a plurality of support plates 17 fixed at appropriate intervals to the rotation shaft 15 supported in the horizontal direction. 1
7 (a), a rectangular crushing blade 23 having a blade portion 21 at one corner at the tip is swingably fitted to the support shaft 19, and is axially engaged by a cylindrical collar 25. Stopped. The rotating plate 27 is fixed to the rotating shaft 15, the blade 31 of the fan 29 is fixed to the inner surface, and the plane blade 35 is fixed to the outer surface along the elongated hole 33 by bolts 36. . The plane blade 35 has a clearance angle α as shown in FIG.

A crushing hopper 37 opens at a position facing the outer periphery of the crushing blade 23 of the crushing case 13, and a discharge shooter 39 opens at a position facing the outer periphery of the fan 29,
Further, a cutting hopper 41 is provided at a position facing the plane blade 35.
Is open. A partition wall 45 having a circular opening 43 in the center is provided between the support plate 17 and the rotary plate 27, and is divided into a crushing chamber 47 and a cutting chamber 49. A connection port 53 for connecting the suction hose 51 is opened outside the crushing chamber 47. When the suction hose 51 is not used, the connection port 53 is closed by a lid 55, and when used, the input port 54 of the crushing hopper 37 is closed by a lid 56.

In order to crush pruning twigs, an engine 9
The twigs fed from the crushing hopper 37 are crushed by the crushing blade 23 which rotates in the step. The crushed strip is a partition 45
Is sucked into the fan 29 through the opening 43, and is discharged from the discharge shooter 39 together with the air blow. In addition, when a wood piece such as a medium diameter branch is pushed from the cutting hopper 41, the tip becomes a plane blade 3
The cut piece passes through the elongated hole 33 and is discharged from the discharge shooter 39 by the fan 29. When the suction hose 51 is used, the upper input port 54 of the crushing hopper 37 is covered with the lid 56, a piece of wood or the like is sucked from the suction hose 51, crushed by the crushing blade 23 in the crushing chamber 47, and It is sucked into the fan 29 from the opening 43 and discharged from the discharge shooter 39.

[0005]

As shown in FIG. 17 (a), a crushing blade 23 of a conventional crusher has a blade portion 21 provided at one corner of a rectangular plate and provided near an opposite end. Support hole 2
4 was fitted to the support shaft 19. Since the impact causes a large wear of the blade portion 21, the maintenance cost is high due to the replacement of the crushing blade 23.

[0006]

According to the present invention, a rectangular plate is provided.
The crushing blades are formed symmetrically so that their long sides are spaced apart to have arcuate concave portions, and the sharp edges are provided at the four corners of the crushing blade, and two support holes are provided on the center line in the longitudinal direction. It is provided symmetrically.

[0007]

The crushing blade works effectively as a sharp blade during the crushing operation, and when the blade portion of the crushing blade is worn by the work, the crushing blade is turned upside down and used. When it is further worn, it is turned over, the other support hole is fitted to the support shaft and used, and then it is used upside down.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In FIG. 1 to FIG.
As shown in FIGS. 1 and 2, an engine 6 is mounted on the vehicle body 59.
1, a crushing device 63 driven by the control unit 1 is mounted via a belt adjusting device 64, and a front end of a handle punch 65 for manipulating the body is provided at the rear of the vehicle body 59 as shown in FIG.
7 are detachably engaged with each other and fixed by bolts 69. The vehicle body 59 is supported by one front wheel 71 and two rear wheels 73, and the front wheel 71 and the rear wheel 73 are provided so that the horizontal rotation operation is fixed and the front wheel 71 and the rear wheel 73 roll only in the front-rear direction.

As shown in FIGS. 11 and 12, a large number of projections 77 are arranged on the outer periphery of the rear wheel 73, and are fixed to an end of a rotatable brake shaft 79 of the vehicle body 59. The swinging brake plate 81 is engaged with the projection 77 so as to be freely detachable. A swing arm 83 fixed to the brake shaft 79 is provided with a shaft 87 that reciprocally slides by operating the operation lever 85.
It is linked to. That is, when the operation lever 85 swings back and forth, the brake plate 81 brakes and releases the rear wheel 73 and locks in that state.

[0010] The belt adjusting device 64 is configured as follows. That is, as shown in FIG. 13, the engine 61 is connected to the frame 9
1, a fixed plate 9 that passes through a long hole 93 provided in the frame 91 and slidably abuts on the lower surface of the frame 91.
5, and is fastened and fixed by bolts 98. A bracket 99 is formed by bending one side edge of the fixing plate 95, and the position of the fixing plate 95 is adjustable in the direction of the elongated hole 93 by a bolt 101 that penetrates through the side plate of the frame 91 and is screwed to the bracket 99. Belt 103 between the engine 61 and the crushing device 63
Adjust

The crushing device 63 is configured as follows. That is, as shown in FIGS.
5, two support plates 109 are fixed to a rotating shaft 107 which is supported in the horizontal direction, and the rotating shaft 107 is positioned at a predetermined radial position.
A support shaft 111 penetrating in a direction parallel to the above is provided, and a rectangular crushing blade 115 having blade portions 113 at four corners is supported by one of two support holes 117, 117 provided at symmetrical positions. The shaft 111 penetrates and is swingably supported by being penetrated, and is locked in the axial direction by cylindrical collars 119 and 121. The support shaft 111 is fixed to the support plate 109 by a pin 123 penetrating with the collar 119.

A rotating plate 125 is fixed to the rotating shaft 107,
The wing plate 1 is provided on the inner surface of the rotating plate 125 (on the side of the support plate 109).
27 is fixed to form a fan 129, and a plane blade 133 is fixed on the outer surface so that the blade edge 131 is located on a parallel line with a predetermined distance and a radius line including the axis, and along the blade edge 131. A long hole 135 is provided. The rotating plate 125 is provided along the long hole 135 in the direction of the long hole 135.
The inclined surface 137 is formed in a concave shape in a direction away from the surface of the rotary member 5 (in a direction in which the thickness of the rotating plate 125 increases), and a step portion 134 for locking the plane blade 133 is formed on the edge opposite to the long hole 125. The plane blade 133 is fixed to the inclined surface 137 by bolts 139.

[0013] Between the support plate 109 and the rotary plate 125,
A partition wall 143 having a circular opening 141 at the center is provided, and a plurality of cutouts 145 are formed at an inner edge of the opening 141.
Are formed. The crushing blade 115 on the fan 129 side is provided close to a predetermined distance facing the notch 145. The crushing case 105 is divided by a partition wall 143 into a crushing chamber 147 and a cutting chamber 149.

A crushing hopper 151 is opened at an outer peripheral position of the crushing chamber 147 facing the crushing blade 115, and a plurality of scattering prevention walls 153 are provided vertically at positions of the outer wall 152 of the crushing hopper 151 facing the crushing blade 115. They are juxtaposed at an appropriate interval. As shown in FIG. 5, the crushing hopper 151 is formed in a rectangular cross section, and is provided so as to be able to be divided for each side plate on each side.

A connection port 157 for connecting the suction hose 155 is opened in the lower portion on the outside. When the suction hose 155 is used, a cover 158 is provided to cover the input port 156 on the upper portion of the crushing hopper 151. Is connection port 15
The cover 159 closing the cover 7 is screwed.

At a position facing the plane blade 133 on the side surface of the cutting chamber 149, a cutting hopper 161 for inserting a middle diameter branch having a slightly larger diameter and cutting the end surface with the plane blade 133 is used.
Is open. A discharge shooter 163 is detachably fixed to the cutting chamber 149 at a position facing the outer periphery of the fan 129. The discharge shooter 163 has a square cross section, the upper end is opened in the lateral direction, and the lower end is provided with a plurality of fixing bolt holes 165, 165... On a horizontal mounting surface at equal intervals on the same circumference. Is provided so as to be rotatable and fixable on a horizontal plane.

The crushing case 105 is divided into a main body case 169 and a lid case 171 by a vertical dividing surface 167 parallel to the rotating shaft 107, and the lower end of the lid case 171 is pivotally connected to the main body case 169 by a pivot 173. Are fixed to be openable and closable by bolts 175. A notch groove 177 for inserting and removing the rotary shaft 107 when the lid case 171 is opened is formed in a side wall of the crushing case 105 through which the rotary shaft 107 penetrates, and a cover 179 fixed to the lid case 171 is attached to the lid case 171. Notch groove 1 when closed
77 is provided.

In order to crush pruning twigs and the like, the engine 61
The twigs fed into the crushing hopper 151 are crushed by the crushing blades 115 rotating in the direction, and are sucked into the fan 129 through the opening 141 of the partition wall 143, and are discharged from the discharge shooter 163 together with the blowing. When the crushed large crushed pieces enter the opening 141, the crushed pieces that are going to rotate together with the crushing blade 115 engage with the cutouts 145 at the inner peripheral edge of the opening 141 and are prevented from rotating. Blade 11
5 cut into small pieces.

When this medium-diameter piece is pushed in from the cutting hopper 161, it is cut by the plane blade 133 in order from the tip,
The cuttings are discharged by the fan 129 through the slot 135. When the suction hose 155 is used, the input port 156 of the crushing hopper 151 is closed with the lid 158, and a piece of wood or the like is sucked from the suction hose 155, crushed by the crushing blade 115 in the crushing chamber 147, and partitioned. The suction shooter 16 is sucked into the fan 129 through the opening 141 of the outlet 143.
3 is discharged.

In order to move the body, the braking of the rear wheel 73 is released by operating the operation lever 85, the handle 59 is gripped and the vehicle body 59 is moved forward. Brakes. To change the direction during running, the handle punch 65 is pressed downward, and the front wheel 71 is lifted to change the direction. In storing and transporting, the large-sized handle punch 65, the crushing hopper 151, the cutting hopper 161 and the discharge shooter 163 are removed, and the particularly large crushing hopper 151 is further divided for each side plate to make it compact.

When the blade portion 113 of the crushing blade 115 is worn, the crushing blade 115 is turned upside down, and when it is further worn, the crushing blade 115 is turned over and the other support hole 117 is fitted to the support shaft 111 and further turned upside down. By doing so, four blade portions 113 can be used.

[0022]

According to the present invention, by providing the crushing blade with four acute-angled blades, the crushing function shown in the table can be maintained and the maintenance cost can be reduced. .

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side sectional view of the crushing apparatus.

FIG. 4 is a front view of the crushing apparatus.

5A is a perspective explanatory view of a crushing hopper, and FIG. 5B is a perspective explanatory view showing the disassembled state.

FIG. 6 is an explanatory perspective view showing a disassembled state of the discharge shooter.

FIG. 7 is a front view of the rotating plate.

FIG. 8 is a plan sectional view of a plane blade.

FIG. 9 is a front view of a crushing blade.

FIG. 10 is a plan view of a handle punch mounting portion.

FIG. 11 is a plan view of the brake device.

FIG. 12 is a side view of the same.

FIG. 13 is a front view of the vibration isolator of the engine.

FIG. 14 is a side view of a conventional wood chip crusher.

FIG. 15 is an immediately sectional view of the crushing apparatus.

FIG. 16 is a front sectional view of the crushing apparatus.

FIG. 17 (a) is a front view of a conventional crushing blade, and FIG. 17 (b) is a plan sectional view of the same crushing blade.

[Explanation of symbols]

 105 Crushing Case 107 Rotating Shaft 109 Support Plate 111 Support Shaft 113 Blade 115 Crushing Blade 117 Support Hole 125 Rotating Plate 129 Fan 133 Plane Blade 151 Crushing Hopper 161 Cutting Hopper 163 Discharge Shooter

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-124548 (JP, A) JP-A-54-36663 (JP, A) Fully open 1984-86253 (JP, U) Really open 54741 (JP, U) Japanese Utility Model Showa 60-168905 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B02C 13/00-18/44

Claims (1)

(57) [Claims] 1. A plurality of crushing blades 115 mounted at predetermined radial positions on a rotating shaft 107 supported horizontally in a crushing case 105, and a fan 129 fixed on an inner surface and a plane blade on an outer surface. 133 and a rotating plate 125 to which 133 is fixed,
A crushing hopper 151 and a fan 129 are provided at positions of the crushing case 105 facing the outer periphery of the crushing blade 115.
A discharge shooter 163 is provided at a position facing the outer periphery of the shaft, and a cutting hopper 161 is provided at a position facing the plane blade 133. The crushing blade 115 is fixed to a support plate 109 supported by the rotating shaft 107. The crushing blade 115 is formed by a rectangular plate having an appropriate thickness, and the crushing blade 115 is formed symmetrically so as to have an arc-shaped concave portion with a long side thereof being spaced apart from each other. Characterized in that an acute angled blade portion 113 is formed at a corner of the support member 111, and two support holes 117 which can be respectively fitted to the support shafts 111 are provided symmetrically on a center line in the longitudinal direction. .