JP2005270968A - Wood crusher and wood processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wood crusher and a wood processing method capable of preventing wood pieces in a crushing work from dropping to the earth and securing the smooth driving condition of a transfer conveyor. <P>SOLUTION: The system is provided with a body frame, a crusher 12 which is provided on the body frame and has a crushing rotor 61 rotating and driving in a crushing chamber 60, the transfer conveyor 11 which is provided on one side in the longitudinal direction of the body frame, has a driving wheel 40 and a driven wheel and a carrier wound around these wheel 40 and the driven wheel and transfers the crushed wood to the crusher 12, a bottomed hopper 10 having side wall bodies provided on both sides in the width direction of the conveyor 11 and a bottom wall body 18 provided on the lower side of the conveyor 11, and a guiding member 47 which is provided in the vicinity of the wheel 40 of the conveyor 11 in the body 18 of the hopper 10 and prevents the wood pieces from being held in the vicinity of the wheel 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wood crusher for crushing pruned branch materials / thinned wood, branch wood, waste wood, etc., for example, a wood crusher and a wood treatment method for crushing an object to be crushed by rotating a crushing rotor. is there.

  For example, pruned branches / thinned wood generated when pruning timber harvested in forests, branch timber generated in creation / green space maintenance management, or waste wood used in wooden houses is usually the final In general, it is treated as industrial waste. The wood crusher is used for the purpose of reducing the volume of crushed wood as waste in such a waste treatment process, or fermenting crushed timber (wood chips) after pulverization and reusing it as organic fertilizer. The crushed wood is crushed into a predetermined size.

  As this kind of wood crusher, generally, the wood to be crushed received by a bottomless hopper is transported by a feed conveyor having a chain belt for transporting the wood to be crushed provided inside the hopper, and sent at a position in front of the crushing device. There is a press roller device that cooperates with the conveyer and is introduced into the crushing device while being gripped between the feed conveyor and crushing treatment (see, for example, Patent Document 1).

JP 2002-1159 A

  In the above-described prior art, the crushed wood to be crushed is conveyed by an endless chain belt and introduced into the crushing device. The chain belt moved on the conveying surface is moved downward by a drive wheel located in front of the crushing device. Go around and return to the driven wheel. At this time, some wood pieces (chips) conveyed on the conveying surface of the chain belt may not be introduced into the crushing device, but may wrap around the chain belt and return to the return surface side through the drive wheels. is there. In this case, if the piece of wood is detached from the chain belt on the way back to the driven wheel, the piece of wood is spilled to the ground because the hopper has a bottomless shape. There is a possibility of being deposited and scattered.

  In view of this point, the present inventors have invented a bottomed hopper configuration including a side wall provided on both sides of the feed conveyor in the width direction and a bottom wall provided below the feed conveyor. If this bottomed hopper is used, even if some pieces of wood caught on the chain belt during the crushing work go around to the return surface, they will be received by the bottom wall of the hopper. Etc. can be prevented from being scattered below the feed conveyor.

  However, when the bottom wall body is provided in the hopper, wood pieces or the like that have come around to the return surface side may accumulate on the bottom wall body and hinder the smooth operation of the feed conveyor. In particular, if wood pieces or the like accumulated on the bottom wall are concentrated in the vicinity of the driving wheel or the driven wheel, the feed conveyor may stop driving in a severe case.

  The present invention has been made in view of the above problems, and an object of the present invention is to prevent spilling of a piece of wood on the ground during a crushing operation and to ensure a smooth driving state of a feed conveyor. The object is to provide a crusher and a wood processing method.

  In order to achieve the above object, the first invention provides a main body frame, a crushing device provided on the main body frame and driven to rotate in the crushing chamber, and provided on one side in the longitudinal direction of the main body frame. A drive conveyor, a driven wheel, and a feed conveyor wound around the drive wheel and the driven wheel, and provided on both sides in the width direction of the feed conveyor for transporting the wood to be crushed to the crushing device. A bottomed hopper having a bottom wall body provided on the lower side of the feed conveyor, and a drive wall of the feed conveyor in the bottom wall body of the hopper. And a guide member for preventing the wood pieces from staying.

  A second invention is provided with a main body frame, a crushing device provided on the main body frame and driven to rotate in a crushing chamber, provided on one side in the longitudinal direction of the main body frame, a driving wheel, a driven wheel, And a transport conveyor wound around the drive wheel and the driven wheel, transporting the wood to be crushed to the crushing apparatus, side wall bodies provided on both sides in the width direction of the feed conveyor, and the feed conveyor A bottomed hopper having a bottom wall body provided on the lower side of the hopper, and provided in the vicinity of the driven wheel of the feed conveyor in the bottom wall body of the hopper to prevent the wood piece from staying in the vicinity of the driven wheel. And a guide member for urging the wood piece to return onto the transport surface of the feed conveyor.

  A third invention is characterized in that, in the first or second invention, the guide member is formed in a substantially arc shape so as to be close to a rotation track of a driving wheel or a driven wheel of the feed conveyor. .

  A fourth invention is characterized in that, in the second or third invention, the guide member slides along a driven wheel of the feed conveyor in a direction of conveying the crushed wood of the feed conveyor.

  In a fifth aspect based on the first aspect, the hopper includes a front wall provided on the front side of the feed conveyor, and an opening provided on the front wall and communicating with the crushing chamber. The guide member is provided from the bottom wall body of the hopper toward the opening of the front wall body.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the hopper includes an opening / closing portion having the guide member attached to a rear end portion thereof.

  According to a seventh aspect of the present invention, the wood to be crushed is put into a bottomed hopper provided on one side in the longitudinal direction of the main body frame, and the wood to be crushed is conveyed to the crushing device side by a feed conveyor housed in the hopper. When crushing, the wood pieces that have not been introduced into the crushing device and have stayed in the hopper are driven in reverse by the feed conveyor, and are guided by guide members provided near the drive wheels on the front side of the feed conveyor. It is characterized by being introduced into the crushing device through an opening provided in the front wall of the hopper and crushing.

  According to the present invention, the feeding conveyor is accommodated and disposed in the bottomed hopper, so that the piece of wood that has wrapped around the lower side of the feeding conveyor can be prevented from falling to the ground. By providing the guide member in the vicinity of the driving wheel and the driven wheel, it is possible to prevent the wood pieces from staying in the vicinity of the driving wheel and the driven wheel, and to ensure a smooth driving state of the feed conveyor. it can.

Hereinafter, an embodiment of a wood crusher of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing the overall structure of an embodiment of a wood crusher of the present invention, FIG. 2 is a plan view of an embodiment of the wood crusher of the present invention shown in FIG. 1, and FIG. It is a side view showing the detailed structure inside the side cover near the crushing device 12. In the following, the directions corresponding to the left and right in FIG. 1 are the rear and front of the wood crusher, or one and the other.
1 to 3, reference numeral 1 denotes a traveling body that enables self-running, 2 denotes a crushing function constituent unit that crushes the wood to be shredded provided on the traveling body 1, and 3 denotes the crushing functional constituent unit 2. The discharge conveyor that transports the crushed material crushed in step 1 and discharges it outside the machine. 4 is a power unit (power unit) equipped with the power source (engine) of each mounted device. The body 1, the crushing function component 2, the discharge conveyor 3, the power unit 4, and the like are roughly configured.

  The traveling body 1 includes a track frame 5, drive wheels 6 and driven wheels 7 provided at both front and rear ends of the track frame 5, and a drive device (travel hydraulic motor) in which an output shaft is connected to the shaft of the drive wheel 6. 8 and a crawler belt (endless track crawler) 9 wound around the drive wheel 6 and the driven wheel 7. A main body frame 36 is provided on the track frame 5. The main body frame 36 supports the crushing function component 2, the discharge conveyor 3, the power unit 4, and the like.

  The crushing function component 2 is provided on the hopper 10 that receives the wood to be shredded and the longitudinal side of the main body frame 36 (left side in FIG. 1), and the wood to be shredded accommodated in the hopper 10. A feed conveyor 11 as a transport means, a crusher 12 provided on the main body frame 36 for crushing the wood to be shredded introduced by the feed conveyor 11 (see FIG. 3 and the like later), and before this crusher 12 A pressing conveyor device 13 (see FIG. 3 and the like later) for pressing the wood to be crushed introduced into the crushing device 12 against the feed conveyor 11 is provided.

4 is a side view showing a detailed structure in the vicinity of the rear end of the hopper 10, FIG. 5 is a cross-sectional view taken along line VV in FIG. 4, and FIG. 6 is a front view of the hopper 10 viewed from the rear. In the figure, the same reference numerals are given to the same parts as those in the previous drawings, and the description will be omitted. However, in FIG. 4, the state which removed the outer wall body 15 mentioned later is shown in figure.
4 to 6, the hopper 10 is formed in a bottomed shape, is provided substantially horizontally on the rear side of the crushing rotor 61 (described later) on the main body frame 36, and is provided on the rear side of the feed conveyor 11. A plurality of members are provided on the rear wall body 14, the outer wall bodies 15 on the left and right sides in the width direction, and on both sides in the width direction of the feed conveyor 11 inside the outer wall body 15, so that a gap is secured between the outer wall bodies 15. A side wall body 16 configured in an L-shape, and a widening portion (tilting portion) 17 provided in a shape of widening upward so as to span over the outer wall body 15 and the upper portion of the side wall body 16; On the lower side of the feed conveyor 11, a bottom wall body 18 provided on the entire bottom surface with a slight gap between the feed conveyor 11 and a front wall body 19 at the front end portion are provided. The upper end of the rear wall 14 is set to the same level as or slightly higher than the transport surface of the feed conveyor 11, and the upper end of the front wall 19 is set to a level slightly lower than the transport surface of the feed conveyor 11. .

FIG. 7 is a cross-sectional view taken along the arrow VII-VII in FIG. 6 showing the detailed structure of the rear end portion of the feed conveyor 11. In this figure, the same parts as those in the previous drawings are given the same reference numerals for explanation. Omitted.
In the present embodiment, the bottom wall 18 of the hopper 10 is divided into a fixed portion 20 and an opening / closing portion 21 located at the rear end. The fixing part 20 is fixed to the side wall body 16, whereas the opening / closing part 21 is fixed to the rear wall body 14. A pin 23 is provided on the upper end portion of the rear wall body 14 via a bracket 22, and the rear wall body 14 is attached to the side wall body 16 so as to be rotatable with the pin 23 as a fulcrum. As a result, the opening / closing part 21 fixed to the rear wall body 14 rotates together with the rear wall body 14 so that the rear end part of the bottom wall body 18 can be opened and closed. On the opening / closing portion 21, a guide member 35 formed in a generally arcuate shape is attached so as to be close to the rotation trajectory of the rear end portion (follower wheel 41 described later) of the feed conveyor 11, and is inserted. The crushed wood is prevented from entering the space behind the feed conveyor 11. Further, the guide member 35 provided in the vicinity of the driven wheel 41 of the feed conveyor 11 in the bottom wall 18 of the hopper 10 is a part of the wood to be shredded (wood piece) that wraps around the return surface side of the feed conveyor 11. However, it plays a role of preventing the wood pieces from staying in the vicinity of the driven wheel 41 and urging the wood pieces to return to the conveying surface of the feed conveyor 11.

  Reference numerals 24 and 25 denote lock mechanisms for holding the opening / closing portion 21 in a closed state. The lock mechanism 24 is provided on the rear end surface of the beam 26 that is passed to the rear end portion of the bottom of the L-shaped side wall body 16. They are respectively provided on the upper surface of the bottom of the side wall body 16 at a position slightly ahead of the lock mechanism 24.

8 (a) and 8 (b) are detailed views of the locking mechanism 24 as seen from the same direction as FIG. 7. In these drawings, the same parts as those in the previous drawings are denoted by the same reference numerals. Description is omitted. Although detailed description is omitted, the configuration of the lock mechanism 25 is the same as that of the lock mechanism 24.
8A and 8B, the lock mechanism 24 includes a support plate 28 fixed to the beam 26 by a plurality of bolts 27, and two brackets provided on the support plate 28 at a predetermined interval. 29, a pin 30 inserted through the bracket 29, a handle 31 provided substantially perpendicular to the outer periphery of the pin 30, a locking member 32 for locking the handle 31, and a lower end portion of the rear wall body 14 And a bracket 33 fixed to.

  With this configuration, the pin 30 is inserted into the bracket 33 on the rear wall body 14 side and the handle 31 is locked between the bracket 29 and the locking member 32 as shown in FIG. The rear wall body 14 is fixed to the side wall body 16 via the pin 30 and the opening / closing part 21 of the bottom wall body 18 is held in a closed state. On the other hand, the pin 30 is rotated to a position where the handle 31 is substantially horizontal, the pin 30 is slid through the notch portion of the locking member 32, and the pin 30 is removed from the bracket 33 as shown in FIG. 8B. As a result, the restriction between the rear wall body 14 and the side wall body 16 is released. In this example, since another lock mechanism 25 is provided, similarly, the lock mechanism 25 side is completely unconstrained by removing the pin from the bracket provided on the open / close portion 21 side. The opening / closing part 21 can be opened and closed. The state in which the opening / closing part 21 is opened is shown in FIG. 9 corresponding to FIG. In this state, when the wood piece stays in the hopper 10, for example, by driving the feed conveyor 11 with the opening / closing part 21 opened, the wood piece on the bottom wall 18 is fed. 11 can be transported on the return surface of the transport body 42 (described later) and easily discharged during maintenance.

  Reference numeral 34 denotes a snap ring that prevents the pin 30 from falling off. The snap ring 34 is provided on the outer periphery of the pin 30 so as to be positioned between the brackets 29 and 29. In this example, when the lock of FIG. 8A is locked and the lock is released of FIG. The length is limited.

  The feed conveyor 11 includes a sprocket-like drive wheel 40 (see FIG. 3) provided on the crushing rotor 61 (described later) side and a slave provided on the opposite side (the wood crusher front side and the rear wall body 14 side). A plurality of rows (4 rows in this example, see FIG. 2) arranged in the width direction are wound between the driving wheels 41 (see FIG. 7 and the like) and the driving wheels 40 and the driven wheels 41 provided at both ends in the conveying direction. Transported bodies (conveying belts, chain belts) 42 are provided. The transport body 42 is not shown in FIG. 3 and FIG. 11 and FIG.

  The driven wheel 41 is supported by a bearing 43 (see FIG. 4) provided on the outer wall surface of the rear portion of the side wall body 16 of the hopper 10, and the driving wheel 40 is positioned substantially on the same plane on the front side of the side wall body 16. It is supported by a bearing 46 (see FIG. 10 described later) provided on the outer wall surface of the side cover 45 (described later) of the crushing device 12 provided. As a result, the feed conveyor 11 extends from the lower part of the hopper 10, that is, from the inside of the side wall body 16 of the hopper 10 to the vicinity of the crushing rotor 61 (described later), and extends substantially horizontally to cover the side surfaces of the hopper 10 and the crushing device 12. 45 (described later).

FIG. 10 is a side view of the vicinity of the crushing device 12, and FIG. 11 is a cross-sectional view showing the internal structure in detail. In these drawings, the same parts as those in the previous drawings are denoted by the same reference numerals and description thereof is omitted. .
10 and 11, 45 is a side cover of the crushing device 12 provided in front of the hopper 10, and 46 is a bearing of the feed conveyor 11 provided on the outer wall surface of the side cover 45. The rotation shaft of the drive wheel 40 of the feed conveyor 11 is connected to the output shaft of a drive device (feed conveyor hydraulic motor, not shown) provided outside the bearing 46 in the width direction via a coupling or the like. The feed conveyor 11 is configured to circulate and drive the transport body 42 between the drive wheels 40 and the driven wheels 41 by rotationally driving a driving device (not shown). As shown in FIG. 11 (see also FIG. 3), the bottom wall body 18 of the hopper 10 described above extends to the lower side of the drive wheel 40, and its tip end faces the side cover 45. Yes.

  47 is a guide member provided in the vicinity of the drive wheel 40 of the feed conveyor 11 in the bottom wall 18 of the hopper 10, and this guide member 47 is formed in a substantially arc shape so as to be close to the rotation locus of the drive wheel 40. The bottom wall body 18 and the front wall body 10 are connected to each other, and play a role of preventing the wood pieces from staying in the vicinity of the drive wheels 40. Reference numeral 48 denotes a scraper disposed at the upper part of the front wall body 19 so as to be slightly lower than the rotation trajectory of the drive wheel 40 and so that the end facing the drive wheel 40 is as close as possible to the rotation trajectory of the drive wheel 40. The end portions in the width direction of the guide member 47 and the scraper 48 are fixed to the side cover 45 of the crushing device 12.

  The aforementioned press conveyor device 13 is provided so as to face the transport surface (upper surface) of the feed conveyor 11 that transports the wood to be shredded so as to be close to the rear side of the crushing rotor 61 (described later). The pressing conveyor device 13 has a rotating shaft 51 (see FIG. 3) supported by a crusher side cover 45 by a bearing 50 (see FIG. 11) so that it can rotate in a vertical plane (in the vertical direction). A support member 52 supported so as to be swingable and a presser roller 53 provided so as to be rotatable with respect to the support member 52 are provided.

  The support member 52 includes an arm portion 54 that includes a rotation shaft 51 and a bracket portion 55 that is provided on the distal end side of the arm portion 54 and supports the pressing roller 53. The lower end surface of the arm portion 54 is formed to be curved in an arc shape, and a curved plate 68 constituting a part of a crushing chamber 60 described later is attached to the curved portion. On the other hand, the attachment portion of the pressing roller 53 in the bracket portion 55 is formed in an arc shape having a smaller diameter than the pressing roller 53, and the outer peripheral surface of the pressing roller 53 protrudes from the bracket portion 55. The dimension of the pressing roller 53 in the width direction (the direction orthogonal to the paper surface in FIG. 3) is set to be equal to or larger than the width of the conveying surface of the feed conveyor 11.

  3 and 11, 56 and 57 are stoppers for restricting the rotation operation of the presser conveyor device 13. When the presser roller 53 is lowered to the proximity position of the drive wheels 40 of the feed conveyor 11, It arrange | positions inside the crusher side cover 45 so that the bracket part 55 and the curved board 68 may each contact | abut. Although not specifically shown, the presser roller 53 incorporates a drive device (presser roller hydraulic motor) in its body, and is rolled to the transport surface of the feed conveyor 11 by this drive device (not shown). The crushed wood on the feed conveyor 11 is rotated in the direction at substantially the same peripheral speed as the conveyance speed of the crushed wood, and is fed into the crushing device 12 in cooperation with the feed conveyor 11.

  The crushing device 12 described above is mounted on a substantially central portion in the longitudinal direction of the main body frame 36, and as shown in FIGS. 3 and 11, a crushing rotor 61 that rotates at high speed in the crushing chamber 60, and the crushing rotor 61 The first anvil 62 and the second anvil 63 are arranged so as to face each other in the rotation direction (forward rotation direction, clockwise direction in FIG. 3). Although details will be described later, the first and second anvils 62 and 63 are configured to be rotatable so as to be retracted in a direction following the normal rotation direction of the crushing rotor 61 when, for example, excessive impact is applied. (See FIG. 11 and the like).

  The crushing rotor 61 is rotatably supported by a bearing (not shown) provided on, for example, a side cover 45 of the crushing device 12 (or a support member (not shown) provided separately on the main body frame 36). The part is provided with a plurality of support members 64 and crushing bits (impact plates or crushing blades) 65 attached to the support members 64, respectively. The crushing bit 65 is disposed such that the blade surface thereof precedes the support member 64 when the crushing rotor 61 rotates in the forward rotation direction. Further, each crushing bit 65 is fixed to the support member 64 with a bolt 66 or the like, and can be easily replaced even when worn. In FIG. 10, reference numeral 67 denotes a driving device (hydraulic motor for crushing rotor) that rotationally drives the crushing rotor 61, and this driving device 67 is not particularly shown but is bolted to the side cover 45 of the crushing device 12. The output shaft is connected to the rotation shaft of the crushing rotor 61 via a drive transmission mechanism using a belt or the like, for example.

  The crushing chamber 60 described above is provided with respect to the crushing rotor 61, respectively, on the curved plate 68 provided on the upper side, and on the front side and the lower side, respectively, and opened with a diameter that sets the particle size of the crushed wood (wood chips) The first screen (first sieving member) 69 and the second screen (second sieving member) 70 having a large number of holes are substantially defined, and the rear side thereof is released as a crushed wood introducing portion. The curved plate 68 is attached to the curved portion of the arm portion 54 of the presser conveyor device 13 as described above, and is configured to move with the up and down swinging motion of the presser conveyor device 13. Similar to the curved plate 68, the first and second screens 69, 70 are arcuate so as to substantially follow the rotation trajectory of the crushing rotor 61 with a predetermined gap between the first and second screens 69, 70, respectively, with the crushing bit 65. Each is formed and movable (details will be described later).

FIGS. 12 and 13 are diagrams illustrating the details of the movable mechanism by extracting the configuration in the vicinity of the first anvil 62 and the first screen 69, and FIG. 14 is a sectional view taken along arrow XIV-XIV in FIG. In the figure, the same reference numerals are given to the same parts as those in the previous drawings, and the description will be omitted.
12 to 14, reference numeral 71 denotes an arm to which the first anvil 62 is attached. The arm 71 is provided in a pair in the width direction (left and right direction in FIG. 14), and includes two rotating shafts 72 and 73 and a beam. 74. For example, one rotation shaft 72 is supported by a bearing 75 provided on the outer wall surface of the crusher side cover 45 (see FIG. 10), so that the rotation shaft 72 can be rotated as a fulcrum. It has become a structure. The directions of the rotation shafts 72 and 73 are substantially parallel to the rotation axis of the crushing rotor 61, respectively.

  The arm 71 is connected to a support member 76 whose front end is fixed to the crusher side cover 45 via a shear pin 77, so that the first anvil 62 is in a crushing operation (for example, in the state of FIG. 3). The curved plate 68 projects in the circumferential direction (the circumferential direction of the crushing rotor 61) on one side (the lower side in FIG. 12) and on the inner side of the curved plate 68 in the radial direction (the radial direction of the crushing rotor 61). It is fixed and held in such a posture. Therefore, when an impact load exceeding the allowable limit of the shear pin 77 is applied to the first anvil 62, the shear pin 77 is broken, the restraint of the arm 71 is released, and the arm 71 is retracted from the crushing chamber 60. And damage to each part is prevented.

  At this time, the rotation operation of the arm 71 is detected by, for example, a sensor that detects the rotation of the rotation shaft 72, and when the rotation of the arm 71 is detected by this sensor, the controller for driving the crushing rotor 61 is not illustrated. A command signal for stopping 67 is output.

  Reference numeral 78 denotes a stopper fixed to, for example, the crusher side cover 45 (or a support member (not shown) separately provided on the main body frame 36). The stopper 78 prevents interference between the arm 71 and other components. In order to prevent this, the rotation range of the arm 71 in the retracting direction of the first anvil 62 is limited.

  Reference numeral 80 denotes a frame-type screen support member (screen holder) that presses and holds the first screen 69 against the arm 71 from the outer peripheral side, and this screen support member 80 has one circumferential side (the circumferential direction of the crushing rotor 61) ( The lower end in FIG. 12 is connected to the arm 71 via the previous rotation shaft 73. Further, the other end portion in the circumferential direction of the screen support member 80 is connected to the beam 74 through the hydraulic cylinder 81. Both ends of the hydraulic cylinder 81 are rotatably connected to the screen support member 80 and the beam 74 via pins, respectively, and the screen support member 80 rotates relative to the arm 71 as the hydraulic cylinder 81 expands and contracts. Move. That is, by contracting the hydraulic cylinder 81, the screen support member 80 is separated from the first screen 69, and the first screen 69 can be easily replaced. 10 and 11, reference numeral 82 denotes an opening for drawing out and inserting the first screen 69 provided on the crusher side cover 45 in consideration of the replacement work of the first screen 69. For example, a bolt detachable cover or the like is attached to the opening 82.

  In FIG. 14, reference numeral 85 denotes a lock mechanism for the screen support member 80. The lock mechanism 85 has a bracket 86 in a fixed relationship with the arm 71, and a bottom side end portion fixed to the bracket 86 in the width direction (left and right in FIG. 14). The lock cylinder 87 provided in the direction), taper blocks 88 and 89 having taper portions fixed to the rod side end of the lock cylinder 87 and the screen support member 80 and engaged with each other; And a guide member 90 that guides the sliding operation of the taper block 88.

  When the first screen 69 is sandwiched between the screen support member 80 and the arm 71, the taper block 88 in a fixed relationship with the arm 71 has a screen support member 80 from the outside in the radial direction (the radial direction of the crushing rotor 61). The taper block 89 is engaged with the taper block 89. That is, when the first screen 69 is held, the lock cylinder 87 is extended and the taper blocks 88 and 89 are engaged, so that the rotation of the screen support member 80 is restricted, and the first screen 69 is It is firmly fixed and held at a position (position shown in FIG. 3) where the crushing chamber 60 holding the crushing work is fixed. As described above, when the first screen 69 is replaced by rotating the screen support member 80 by retracting the hydraulic cylinder 81, the lock cylinder 87 is retracted and the engagement of the taper blocks 88 and 89 is released. The unlocked state is shown in FIG. 15 in correspondence with FIG. In the present embodiment, the lock mechanisms 85 are provided on both sides of the first screen 69 in the width direction (left and right direction in FIG. 14). However, if only one side is sufficient, either one may be omitted.

  Returning to FIGS. 3 and 10 to 11, reference numeral 91 denotes a frame-type arm to which the second anvil 63 is attached. The arm 91 is, for example, the outer wall surface (or the main body frame 36) of the crusher side cover 45 (see FIG. 10). A rotation shaft (not shown) is supported by a bearing 92 provided on a support member (not shown) provided separately above, and is configured to be rotatable about the rotation shaft. The direction of the rotation axis is substantially parallel to the rotation axis of the crushing rotor 61.

  The arm 91 is connected to a support member 93 whose front end is fixed to the crusher side cover 45 via a shear pin 94, so that the second anvil 63 is in a crushing operation (for example, in the state of FIG. 3). The first screen 69 projects in the circumferential direction (the circumferential direction of the crushing rotor 61) on one side (the lower side in FIG. 3) and inward in the radial direction (the radial direction of the crushing rotor) from the inner wall surface of the first screen 69. Fixed and held in posture. Therefore, when an impact load exceeding the allowable limit of the shear pin 94 is applied to the second anvil 63, the shear pin 94 is broken, the restraint of the arm 91 is released, and the arm 91 is retracted from the crushing chamber 60. And damage to each part is prevented.

  At this time, the rotation operation of the arm 91 is detected by, for example, a sensor that detects the rotation of the rotation shaft, and when the rotation of the arm 91 is detected by this sensor, the controller for driving the crushing rotor 61 is not illustrated. A command signal for stopping 67 is output.

  A stopper 95 is fixed to, for example, the crusher side cover 45 (or a support member (not shown) provided separately on the main body frame 36). The stopper 95 interferes with the arm 91 and other components. In order to prevent this, the rotation range of the arm 91 in the retracting direction of the second anvil 63 is limited.

FIG. 16A to FIG. 16C are diagrams showing the details of the movable mechanism extracted from the configuration around the second screen 70 described above. In this figure, the same parts as those in the previous drawings are the same. Reference numerals are assigned and description is omitted.
In FIG. 16, reference numeral 97 denotes a press plate for the second screen 70, and the press plate 97 is formed so that the outer peripheral portion thereof substantially coincides with the curvature of the inner wall surface of the second screen 70. 16A), for example, the inner wall surface of the second screen 70 is in contact with the inner wall surface of the crusher side cover 45 (or a support member (not shown) provided separately on the main body frame 36). It is fixed with bolts etc. so as to contact. A frame-type screen support member (screen holder) 98 holds the second screen 70 by pressing it against the presser plate 97 from the outer peripheral side. The screen support member 98 has a rotating shaft 99 provided at one end (left side in FIG. 16) in the circumferential direction (circumferential direction of the crushing rotor 61) provided separately on the crusher side cover 45 (or on the main body frame 36). It is supported by a bearing 100 fixed to a support member (not shown) and is configured to rotate in the vertical direction.

  The other end in the circumferential direction of the screen support member 98 is connected to a support member 102 fixed to the outer wall surface of the crusher side cover 45 with bolts or the like via a hydraulic cylinder 101. Both ends of the hydraulic cylinder 101 are rotatably connected to the screen support member 98 and the support member 102 via pins, respectively, and the screen support member 98 moves the rotation shaft 99 along with the expansion / contraction operation of the hydraulic cylinder 101. Rotates to a fulcrum. Thus, by extending the hydraulic cylinder 98, the screen support member 98 is separated from the second screen 70, and the second screen 70 can be easily replaced. 10 and 11, reference numeral 103 denotes a notch for drawing out and inserting the second screen 70 provided on the crusher side cover 45 in consideration of the replacement work of the second screen 70. For example, a bolt detachable cover or the like is attached to the notch 103.

  Reference numeral 105 denotes a lock mechanism for the screen support member 98. The lock mechanism 105 includes a bracket 106 fixed to the outer wall surface of the crusher side cover 45, and a bottom side end portion fixed to the bracket 106 in the front-rear direction (see FIG. 16 and the taper blocks 108 and 109 having taper portions fixed to the rod side end of the lock cylinder 107 and the screen support member 98 and engaged with each other, and a crusher side cover And a guide member 110 that is fixed to the outer wall surface of 45 by a bolt or the like and guides the sliding operation of the taper block 108 accompanying the expansion and contraction operation of the lock cylinder 107.

  When the second screen 70 is sandwiched between the screen support member 98 and the pressing plate 97, the taper block 108 is provided on the screen support member 98 from the outside in the radial direction (the radial direction of the crushing rotor 61). Engage with. As a result, when the second screen 70 is held, the lock cylinder 107 is extended and the taper blocks 108 and 109 are engaged, so that the rotational movement of the screen support member 98 is restricted, and the second screen 70 is It is firmly fixed and held at a position (position shown in FIG. 16 (a)) where the crushing chamber 60 having crushing work is fixed. Therefore, when replacing the first screen 69 by rotating the screen support member 98 by extending the hydraulic cylinder 101 as shown in FIG. 16C, first, as shown in FIG. The operation is performed after the taper blocks 108 and 109 are disengaged. The state around the crushing device 12 at the time of unlocking is shown in FIG. The lock mechanism 105 is preferably provided on both sides of the second screen 70 in the width direction (for example, the direction orthogonal to the inner surface of FIG. 16A), but either one may be omitted if only one side is sufficient.

  1 and 2, the discharge conveyor 3 is suspended and supported by a support member 112 provided at the discharge side (front side, right side in FIGS. 1 and 2) so as to protrude from the power unit 4. . The opposite side (rear side, left side in FIGS. 1 and 2) is supported by being suspended from the main body frame 36 via a support member 113. Thereby, the discharge conveyor 3 passes below the power unit 4 from the lower side of the crushing device 61, and is disposed in an upward inclination outward from the front side of the wood crusher. Reference numeral 114 denotes a frame of the discharge conveyor 3, and 115 denotes a conveyor belt wound between driving wheels (not shown) and driven wheels (not shown) provided at both ends of the frame 114 in the longitudinal direction. Reference numeral 116 denotes a drive device (hydraulic motor for the discharge conveyor) that rotationally drives the drive wheels 115. By rotating the drive device 116, the conveyor belt 115 is circulated between the drive wheels and the driven wheels. Yes.

  The power unit 4 is mounted on the other end in the longitudinal direction of the main body frame 36 (the right side in FIGS. 1 and 2) via a support member 117. A driver's seat 118 is provided in a compartment on the rear side of the power unit 4 and on one side in the width direction (lower side in FIG. 2). Reference numeral 119 denotes an operation lever for driving operation provided in the driver's seat 118, and 120 denotes an operation panel for performing other operations, settings, monitoring, and the like. In this example, the operation panel 120 is provided on the side of the machine body so that the operator can easily operate from the ground, but may be provided on the driver's seat 118.

Here, FIG. 18 is a side sectional view showing a detailed structure in the vicinity of the crushing chamber 60 of the feed conveyor 11 described above. In this figure, the same parts as those in the previous drawings are denoted by the same reference numerals for explanation. Omitted.
As shown in FIG. 18, the front wall body 19 of the hopper 10 described above is provided with an opening 121 located in front of the feed conveyor 11 and communicating with the crushing chamber 60. A piece of wood such as wood to be crushed that has entered the lower side (return surface side) of the wood can be introduced into the crushing chamber 60 through the opening 121. The guide member 47 is provided from the bottom wall body 18 toward the opening portion 121 of the front wall body 19 so as to guide the wood pieces and the like that have turned around to the return surface side of the feed conveyor 11 to the opening portion 121. . Although not particularly illustrated, the front wall 19 may be provided with an opening / closing lid for opening and closing the opening 121. The opening / closing lid may be configured to be detachable with a bolt or the like, or may be configured to be openable / closable by sliding or rotating.

  Moreover, in this Embodiment, the front wall body 19 of the hopper 10 is equipped with the return plate 122 as a crushing wood invasion prevention means in the exit part lower side of the opening part 121. As shown in FIG. The return plate 122 serves to determine a part of the crushing chamber 60 adjacent to the second screen 70 described above, and is arranged outside the front wall 19 so that its upper end is aligned with the lower end of the opening 121. It is fixed on the wall.

  In the present embodiment, by attaching this return plate 122, the outer wall surface below the opening 121 in the front wall body 19 is closer to the crushing chamber 60 center side than the outer wall above the opening 121. It is located, and it is considered so that the piece of wood in the middle of crushing may not penetrate | invade from the crushing chamber 60 side through the opening part 122. FIG. In FIG. 18, the vicinity of the opening 121 of the return plate 122 is bent so as to rise in a substantially vertical direction according to the shape of the front wall body 19. It is more preferable to bend. Further, the crushed wood prevention means is not limited to the illustrated return plate 122, and the mode is not limited as long as the crushed wood can be prevented from entering the hopper 10 from the opening 122.

Next, operation | movement and an effect | action of the wood crusher which concern on this Embodiment of the said structure are demonstrated one by one.
For example, when wood to be crushed is introduced into the hopper 10 with an appropriate work tool such as a grapple of a hydraulic excavator, the wood to be crushed is guided by the expanding portion 17 of the hopper 10 and placed on the carrier 42 of the feed conveyor 11. Then, it is transported in a substantially horizontal direction toward the front side of the wood crusher by a transport body 42 that is circulated and driven while being guided by the side wall body 16 of the hopper 10.

  When the wood to be crushed on the feed conveyor 11 is conveyed to the vicinity of the press conveyor device 13, it enters the lower part of the press roller 53 of the press conveyor device 13 and pushes up the press conveyor device 13. Thereby, the wood to be crushed on the feed conveyor 11 is introduced into the crushing chamber 60 while being pressed and held between the feed conveyor 11 by the action of the weight of the press conveyor device 13. Thereby, at the time of crushing, the to-be-crushed wood protrudes into the crushing chamber 60 in a cantilevered manner with the portion sandwiched between the presser roller 54 and the feed conveyor 11 as a fulcrum, and this protruding portion of the crushing rotor 61 rotates. When the crushing bit 65 collides, the primary crushing is relatively roughly performed. The pieces of crushed wood that have been primarily crushed go around the space in the crushing chamber 60 on the outer periphery side of the crushing rotor 61 in the rotation direction of the crushing rotor 61, and sequentially collide with the first and second anvils 62 and 63. , The impact is further shattered.

  Of the pieces of wood that are being crushed as described above, those that are larger than the holes provided in the first and second screens 69 and 70 continue to circulate in the crushing chamber 60, By colliding with the first and second anvils 69 and 70 again, they are further crushed. Thus, when pulverized to a particle size that passes through the holes of the first and second screens 69, 70, crushed wood (wood chips) passes through the holes of the first or second screens 69, 70, It is discharged from the crushing device 12.

  The crushed wood (wood chips) discharged from the crushing device 12 falls on the conveyor belt 115 of the discharge conveyor 3 that is circulated and driven through a chute (not shown), and moves forward (right side in FIGS. 1 and 2). And are discharged as recycled products.

  Here, as described above, the scraper 48 provided on the front wall 19 of the hopper 10 is disposed close to the front end of the feed conveyor 11. As a result, the entrance to the gap between the front wall body 19 of the hopper 10 and the feed conveyor 11 is narrowed as much as possible, and the wood to be crushed conveyed by the feed conveyor 11 by this scraper 48 enters the gap between the front wall body 19 and the front wall body 19. It is prevented from being introduced and the wood to be crushed is efficiently introduced into the crushing chamber 60.

  However, since the drive wheel 40 and the transport body 42 of the feed conveyor 11 are rotating bodies, it is necessary to secure a minimum gap between the drive wheel 40 and the transport body 42 and the scraper 48 that is a stationary body. . As a result, during a crushing operation, when a piece of wood to be shredded conveyed to the crushing device 12 by the feed conveyor 11 is caught on the transport body 42, the caught wood piece has a gap with the scraper 48. In some cases, the drive wheel 40 of the feed conveyor 11 is folded as it is without being introduced into the crushing chamber 60, and wraps around the lower side of the feed conveyor 11.

  In the present embodiment, the feed conveyor 11 is placed in the bottomed hopper 10 so that the piece of wood that wraps around the lower side (return surface side) of the feed conveyor 11 does not fall and scatter on the ground. The bottom wall 18 of the hopper 10 is disposed below the feed conveyor 11. At this time, if a piece of wood or the like that wraps around the return surface of the feed conveyor 11 stays on the bottom wall 18 of the hopper 10 and concentrates in the vicinity of the drive wheel 40 or the driven wheel 41 of the feed conveyor 11, the feed In this embodiment, the guide members 47 and 35 are provided close to the drive wheel 40 and the driven wheel 41, respectively. The wood piece can be prevented from staying in the vicinity of the driven wheel 41, the wood piece can be prevented from spilling on the ground during the crushing operation, and the smooth driving state of the feed conveyor 11 can be ensured.

  In addition, a part of the wood pieces that have wrapped around the lower side of the feed conveyor 11 are guided rearward by the bottom wall 18 of the hopper 10 while being caught by the transport body 42, and are guided to the guide member 35 at the rear end portion. It is guided to return on the transport surface of the feed conveyor 11 and is again introduced into the crushing device 12. Thereby, it can prevent that a part of to-be-crushed timber which should be crushed originally falls, and is not scattered without being introduce | transduced into the crushing apparatus 12, and can improve crushing efficiency.

  However, if the pieces of wood that have still been caught by the transport body 42 and have moved around to the lower side of the feed conveyor 11 are detached from the transport body 42, the detached pieces of wood may stay in the hopper 10.

  In such a case, in the present embodiment, by providing the opening 121 in the front wall body 19 of the hopper 10, the inside of the hopper 10 is not introduced into the crushing device 12 during the crushing operation as described above. The wood pieces staying in can be introduced into the crushing device 12 through the opening 121 and crushed by driving the feed conveyor 11 in the reverse direction. Thus, in this Embodiment, the to-be-crushed wood thrown in in the hopper 10 can be introduce | transduced into the crushing apparatus 12, and can be crushed without waste. Therefore, the efficiency of introducing the wood to be crushed into the crushing apparatus can be improved, and the crushing efficiency can be improved.

  In the present embodiment, the opening 121 is provided in the front wall body 19 of the hopper 10, and the feed conveyor 11 is driven in the reverse direction so that the piece of wood that wraps around the return surface side of the feed conveyor 11 is changed to the opening 121. As shown in FIG. 19, as long as the wood pieces are prevented from staying in the vicinity of the drive wheel 40 and the driven wheel 41 of the feed conveyor 11. The opening 121 of the hopper 10 may be omitted. Even in this case, it is possible to prevent the wood pieces from staying in the vicinity of the drive wheel 40 and the driven wheel 41, to prevent the wood pieces from spilling on the ground during the crushing operation, and to make the feed conveyor 11 smooth. The driving state can be ensured.

20 is a partially transparent side view showing a detailed structure of the vicinity of the rear end of a hopper provided in another embodiment of the wood crusher of the present invention, and FIG. 21 is a partially sectional view of the structure of the hopper as seen from the rear. In these drawings, the same reference numerals are given to the same parts as those in the previous drawings, or the parts playing the same functions, and the description thereof will be omitted.
The present embodiment is characterized in that the guide member 35 is configured to slide along the driven wheels 41 of the feed conveyor 11 in the direction of conveying the crushed wood of the feed conveyor 11. The features will be described below.

  20 and 21, ribs 123 and 124 extending substantially in the vertical direction are provided on the outer side in the width direction of the hopper 10. The ribs 123 and 124 are fixed to the side wall body 16 and the expanded portion 17 of the hopper 10. A tension adjusting mechanism 125 that adjusts the tension of the transporting body 42 forming the endless track crawler is attached to the rib 124 positioned in front of the bearing 43 that supports the driven wheel 41 (see FIG. 7) of the feed conveyor 10. ing.

  The tension adjusting mechanism 125 includes a bracket 126 fixed to the rib 124, a guide member 127 fixed to the side wall body 16 and the rib 124 of the hopper 10 and formed in a cylindrical shape, and a crushed wood transport of the feed conveyor 11 to the guide member 127. The slide member 128 is slidably supported in the direction (left and right direction in FIG. 20), the bolt 130 is fixed to the slide member 128, and the support plate 129 provided on the bracket 126 is inserted into the bolt 130 so as to be sandwiched therebetween. And nuts 131 and 132. Reference numeral 133 denotes a nut for preventing loosening.

  The rear end portion of the previous slide member 128 is fixed to the bearing 43. At this time, the rear end of the side wall body 16 of the hopper 10 is provided with a notch 135 (see FIG. 21) extending in the direction of conveying the crushed wood of the feed conveyor 11. The shaft of the driven wheel 41 supported by the bearing 43 is passed through the notch 135 and can move in the notch 135, whereby the driven wheel 41 and the bearing 43 of the feed conveyor 11 are fed together with the slide member 128. The conveyor 11 is slidable in the direction of conveying the crushed wood (horizontal direction).

  Further, a bracket 136 is attached to the rear portion of the bearing 43. The bracket 136 is connected to the guide member 35 via support members 137 and 138. In the present embodiment, the guide member 35 is not fixed to the bottom wall 18 of the hopper 10 but is supported only by the bracket 136 via the support members 137 and 138.

  In the present embodiment, the opening / closing mechanism of the bottom wall 18 of the hopper 10 (such as the opening / closing portion 21 and the rotating mechanism of the rear wall 14 as shown in FIG. 9) is omitted. Other configurations are the same as those of the wood crusher according to the embodiment of the present invention described above, and the same effects can be obtained.

  In addition, according to the present embodiment, the nuts 131 to 133 of the tension adjusting mechanism 132 are operated to adjust the protruding amount of the bolt 130 from the bracket 126, whereby the driven wheel of the feed conveyor 11 is connected via the slide member 128. 41 and the bearing 43 can be moved in the crushing wood conveyance direction of the feed conveyor 11. Thereby, it is possible to adjust the tension of the conveyance body 42 of the feed conveyor 11. At this time, since the guide member 35 is coupled to the bearing 43 via the bracket 136 and the support members 137 and 138, the guide member 35 moves in the direction of conveying the crushed wood of the feed conveyor 11 together with the driven wheel 41. The guide member 35 moves back and forth so as to slide on the bottom wall 18.

  If the position of the guide member 35 does not change even if the driven wheel 41 is temporarily moved, the driven wheel 41 may interfere with the guide member 35 or be separated from the guide member 35 more than necessary. In this case, there is a possibility that the driving of the feed conveyor 11 may be hindered, or the crushed wood and the wood pieces thrown into the hopper 10 may be easily accumulated between the driven wheel 41 and the guide member 35. .

  On the other hand, in this embodiment, since the guide member 35 moves together with the driven wheel 41, the distance between the guide member 35 and the driven wheel 41 can always be kept at an appropriate value set in advance. Therefore, even if the driven wheel 41 is moved by adjusting the tension of the transport body 42, the driven wheel 41 does not interfere with the guide member 35 or be separated from the guide member 35 more than necessary. Therefore, it is possible to prevent problems such as troubles in driving the feed conveyor 11 or accumulation of wood pieces or the like between the driven wheel 41 and the guide member 35 accompanying the movement of the driven wheel 41. .

  In the above description, the presser conveyor device 13 described above is used as the pressure introducing means for the wood to be crushed. However, the presser conveyor device 13 is not limited to this. ) May be used. Further, the operation at the time of pressing may be configured to move up and down instead of rotating. In this case, the same effect is obtained.

  Furthermore, although it demonstrated taking the case of the wood crusher provided with what was called an impact crusher which attached the cutter (crushing bit 65) to the outer peripheral part of the crushing rotor 61 as a crushing apparatus, it is not restricted to this, Other crushing apparatuses, for example, parallel A crushing device (such as a biaxial shearing machine including a so-called shredder) that has a cutter on a shaft arranged on the shaft and reversely rotates each other, and a roll-shaped rotating body (rotor) for crushing blades A rotary crushing apparatus (such as a six-axis crusher including a roll crusher) that rotates the pair in opposite directions and crushes the object to be crushed between the rotating bodies. Also, the present invention can be applied to a wood crusher equipped with a so-called wood chipper that makes the object to be crushed into chips. In these cases, the same effect as described above is obtained.

  Moreover, although the case where the present invention is applied to a wood crusher capable of traveling on its own has been described as an example, the present invention is not limited to this, and it can be lifted and transported by a mobile wood crusher that can be pulled and run, for example, a crane. Needless to say, the present invention may be applied to a portable wood crusher, and further to a stationary wood crusher arranged as a fixed machine in a plant or the like.

It is a side view showing the whole structure of one embodiment of the wood crusher of the present invention. It is a top view showing the whole structure of one embodiment of the wood crusher of the present invention. It is a side view showing the detailed structure inside the side cover of the crushing device vicinity with which one Embodiment of the wood crusher of this invention was equipped. It is a side view showing the detailed structure of the rear end vicinity provided in one embodiment of the wood crusher of this invention. FIG. 5 is a cross-sectional view taken along line VV in FIG. 4 showing a detailed structure in the vicinity of a rear end of a hopper provided in an embodiment of the wood crusher of the present invention. It is the front view seen from the back of hopper 10 showing the detailed structure near the rear end of the hopper with which one embodiment of the wood crusher of the present invention was equipped. It is a VII-VII arrow sectional view in Drawing 6 showing the detailed structure of the rear end part of the feed conveyor with which one embodiment of the wood crusher of the present invention was equipped. It is detail drawing of the locking mechanism of the opening-and-closing part of the hopper with which one embodiment of the wood crusher of this invention was equipped. It is a figure showing the state by which the opening / closing part of the hopper with which one Embodiment of the wood crusher of this invention was equipped was open | released. It is a side view of the crushing device vicinity with which one Embodiment of the wood crusher of this invention was equipped. It is sectional drawing showing in detail the internal structure of the crushing device vicinity with which one Embodiment of the wood crusher of this invention was equipped. It is a figure showing the detail of those movable mechanisms which extracted the structure of the 1st anvil and 1st screen vicinity with which one Embodiment of the wood crusher of this invention was equipped. It is a figure showing the detail of those movable mechanisms which extracted the structure of the 1st anvil and 1st screen vicinity with which one Embodiment of the wood crusher of this invention was equipped. It is the XIV-XIV arrow directional cross-sectional view in FIG. 12 which extracts the structure of the 1st anvil and 1st screen vicinity with which one Embodiment of this invention was equipped, and shows the detail of those movable mechanisms. It is a figure showing the state at the time of lock release of the 1st screen with which one Embodiment of the wood crusher of this invention was equipped. It is a figure showing the detail of the movable mechanism which extracted the structure of the 2nd screen vicinity with which one Embodiment of the wood crusher of this invention was equipped. It is a figure showing the state of the crushing device periphery at the time of lock release of the 2nd screen with which one Embodiment of the wood crusher of this invention was equipped. It is a sectional side view showing the detailed structure of the vicinity of the crushing chamber of the feed conveyor with which one Embodiment of the wood crusher of this invention was equipped. It is a side view showing the detailed structure of the other structural example inside the side cover near the crushing apparatus with which one Embodiment of the wood crusher of this invention was equipped. It is a partially transparent side view showing the detailed structure of the rear end vicinity provided in other embodiment of the wood crusher of this invention. It is a front view showing the structure seen from the back of the hopper with which other one embodiment of the wood crusher of this invention was equipped with a partial cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Hopper 11 Feed conveyor 12 Crushing device 16 Side wall body 18 Bottom wall body 19 Front wall body 21 Opening and closing part 35 Guide member 36 Main body frame 40 Drive wheel 41 Driven wheel 42 Conveying body 47 Guide member 60 Crushing chamber 61 Crushing rotor 121 Opening part

Claims (7)

Body frame,
A crushing apparatus having a crushing rotor provided on the main body frame and driven to rotate in the crushing chamber;
A feed conveyor that is provided on one side in the longitudinal direction of the main body frame, has a drive wheel, a driven wheel, and a transport body wound around the drive wheel and the driven wheel, and transports the wood to be crushed to the crushing device; ,
A side wall provided on both sides in the width direction of the feed conveyor, and a bottomed hopper having a bottom wall provided on the lower side of the feed conveyor;
A wood crusher provided with a guide member provided in the vicinity of the drive wheel of the feed conveyor on the bottom wall of the hopper, and preventing a piece of wood from staying in the vicinity of the drive wheel. Body frame,
A crushing apparatus having a crushing rotor provided on the main body frame and driven to rotate in the crushing chamber;
A feed conveyor that is provided on one side in the longitudinal direction of the main body frame, has a drive wheel, a driven wheel, and a transport body wound around the drive wheel and the driven wheel, and transports the wood to be crushed to the crushing device; ,
A side wall provided on both sides in the width direction of the feed conveyor, and a bottomed hopper having a bottom wall provided on the lower side of the feed conveyor;
A guide member provided in the vicinity of the driven wheel of the feed conveyor on the bottom wall of the hopper, and preventing the wood piece from staying in the vicinity of the driven wheel and urging the wood piece to return to the transport surface of the feed conveyor. A wood crusher characterized by comprising:   3. The wood crusher according to claim 1, wherein the guide member is formed in a substantially arc shape so as to be close to a rotation track of a driving wheel or a driven wheel of the feed conveyor.   The wood crusher according to claim 2 or 3, wherein the guide member slides along a driven wheel of the feed conveyor in a direction in which the wood to be shredded is transported.   The hopper has a front wall provided on the front side of the feed conveyor, and an opening provided in the front wall that communicates with the crushing chamber, and the guide member extends from the bottom wall of the hopper. The wood crusher according to claim 1, wherein the wood crusher is provided toward an opening of the front wall body.   The wood crusher according to any one of claims 1 to 5, wherein the hopper includes an opening / closing part having the guide member attached to a rear end part thereof.   When the crushed wood is put into a bottomed hopper provided on one side in the longitudinal direction of the main body frame, and the crushed wood is conveyed to the crushing device side by the feed conveyor housed in the hopper and crushed, The wood piece staying in the hopper without being introduced into the crushing device is driven reversely by the feed conveyor, and is guided by a guide member provided in the vicinity of the drive wheel on the front side of the feed conveyor to the front wall body of the hopper. A wood processing method characterized by introducing into the crushing device through the opening provided and crushing.

Images