JP4325990B2 - Wood crusher - Google Patents

Description

  The present invention relates to a wood crushing apparatus for crushing wood.

  As a wood crushing device for crushing wood, there is a self-propelled wood crushing device (wood crushing machine) (for example, see Patent Document 1). As shown in FIG. 9, this self-propelled wood crusher includes a rotary crusher (crush body) 61 and a tab (rotary tab) that rotates around an axis and supplies wood to the rotary crush body 61. 62). The tab 62 and the rotary crushing body 61 are attached to the machine body 63, and the running body 64 is attached to the machine body 63. A hopper 68 is attached to the top of the tab 62, and wood is supplied into the tab 62 by putting wood into the hopper 68. Thus, the wood is crushed by the rotary crushed body 61, the crushed material is supplied below the rotary crushed body 61, and is discharged to the outside by the transport conveyor 65.

  By the way, in the self-propelled wood crushing machine described in Patent Document 1, an engine enclosure 70 is disposed on the rear side of the machine body 63 to provide an engine chamber 71 in which the engine is accommodated. Next to the engine room 71, an equipment storage room (equipment storage section) 73 for storing various equipment is provided. The storage chamber 73 is formed by arranging a device cover body 72 on the machine body 63.

In the wood crushing machine, a lid member 74 as an engine hood is attached to the upper portion of the engine enclosure 70, and the rear opening of the engine enclosure 70 is closed by the rear cover 75. . In this case, the direction in which the transfer conveyor 65 protrudes is referred to as the front, and the direction in which the transfer conveyor 65 does not protrude is referred to as the rear. The upper wall 77 and the side wall 78 constitute an exterior cover, and a gap 79 that opens upward is provided between the upper wall 77 and the side wall 78, as shown in FIG. It is done. That is, the upper wall portion 77 includes an upper surface wall 77 a and a hanging wall 77 b depending from the outer peripheral edge, and the side wall portion 78 includes a rear cover 75. This gap 79 is formed at the portion A in FIG. Further, the engine enclosure 70 is provided with an opening for inspection of the engine chamber 71, and a door 80 is attached to the opening as shown in FIG. In this case, a gap 81 that opens upward is provided between the upper wall portion 77 constituted by the upper surface cover 70 a of the engine enclosure 70 and the side wall portion 78 constituted by the door 80.
JP 2002-192969 (page 4-5, FIG. 1)

  By the way, at the time of crushing (particularly when there is little wood in the tab 62), a part of the crushing pieces (crushed material) passes through the rotary tab 62 and the hopper 68 and scatters to the outside. For this reason, if the gaps 79 and 81 are provided as described above, the scattered pieces (crushed material) enter the engine chamber 71 from the gaps 79 and 81. If crushed material (wood powder) enters the engine room 71, it will adversely affect the engine, cooling fan, etc. housed in the engine room 71, and these may break down, overheat, or be damaged. There is a fear. Further, if the crushed material enters the engine chamber 71 or the like in this way, the crushed material may accumulate and rot, and if rotted, it is not preferable for hygiene and a rot odor is generated. Moreover, since the crushed material is wood powder, the accumulated powder contains water, and the corrosion of metal parts in the engine room 71 and the like is accelerated by the water. Further, crushed material (wood powder) may accumulate on the upper portion of the door 80 of the opening for engine room inspection. In such a case, if the door 80 is opened, the crushed material collected on the upper part of the door may fall and contaminate the clothes of the operator.

  9, the exterior cover 82 is composed of upper surface covers 83a and 83b as shown in FIG. 12, and a gap 84 is formed between the upper surface covers 83a and 83b. For this reason, in some cases, the interstitial member 85 made of urethane resin or the like is filled in the gap 84 so that the crushed material does not enter inside. However, when the interposition member 85 is mounted, the interposition member 85 is damaged when the cover is detached, the interposition member 85 itself is damaged due to the deterioration over time, or the upper surface cover adhesive portion of the interposition member 85 is peeled off. There is a risk. Therefore, intrusion of crushed material into the interior cannot be stably prevented over a long period of time.

  Further, the upper surface covers 83a and 83b of the exterior cover 82 may be attached to a frame 86 provided on the machine body 63 as shown in FIG. That is, the horizontal frames 87a and 87b are attached to the vertical frame 86, and the end of one upper surface cover 83a is mounted on one frame 87a, and the fixing member 88 including a bolt member and a nut member is interposed therebetween. The end of the upper surface cover 83a is attached to the frame 87a, and the end of the other upper surface cover 83b is placed on the other frame 87b. Is installed.

  For this reason, when the frame 86 provided on the machine body 63 as shown in FIG. 13 is used, the lateral frames 87a and 87b are required. By the way, if this exterior cover 82 constitutes the upper wall part of the equipment storage part in which, for example, the operation valve in the hydraulic circuit for driving the wood crushing apparatus is stored, the upper surface covers 83a and 83b are provided. It is necessary to remove and inspect the inside of this equipment storage part. However, at the time of such an inspection, the operation valves and the inspection work in the vicinity thereof are extremely difficult due to the lateral frames 87a and 87b, and the workability is inferior.

  The present invention has been made to solve the above-mentioned conventional drawbacks, and the object thereof is to prevent the intrusion of crushed material (wood powder) into the interior of an apparatus such as an engine room, and the like. An object of the present invention is to provide a wood crushing apparatus capable of avoiding adverse effects on the wood.

The wood crushing device according to claim 1 is a wood crushing device for crushing wood with the crusher 1, and includes an exterior cover 42 having a pair of upper surface covers 44 and 44 to which end portions E1 and E2 are joined. An end E1 of the upper surface cover 44 includes a substantially horizontal first portion 46, a vertical portion 47 extending in the vertical direction from the tip of the substantially horizontal first portion 46, and the other upper surface from the lower end of the vertical portion 47. And a substantially horizontal second portion 48 extending toward the cover 44, and an end E2 of the other upper surface cover 44 is superimposed on the upper surface of the substantially horizontal first portion 46 of one upper surface cover 44. Yes.

The wood crushing apparatus according to claim 1, since the superposed substantially end E2 of the horizontal top cover 44 upper surface to the other of the first portion 46 of one of the top cover 44, the ends E1, E2 each other are joined There is no opening that opens upward between the pair of upper surface covers 44, 44. For this reason, in the joining part of a pair of upper surface covers 44 and 44, the penetration | invasion into the apparatus inside of the crushed material from upper direction can be prevented. Moreover, the end E1 of the one upper surface cover 44 includes a substantially horizontal first portion 46, a vertical portion 47 extending in the vertical direction from the tip of the substantially horizontal first portion 46, and a lower end of the vertical portion 47. And has a substantially horizontal second portion 48 extending toward the other upper surface cover 44, and is excellent in strength. , The end E2 of the other upper surface cover 44 can be stably received. In other words, there is no need for an interposition member made of urethane resin or the like or a lateral frame at the joint between the pair of upper surface covers 44.

According to the wood crushing apparatus of Claim 1 , since the opening part opened upwards does not arise between a pair of upper surface covers by which edge parts are joined, the penetration | invasion from the upper direction into the apparatus inside Can be prevented. For this reason, accumulation of crushed material inside the apparatus can be avoided, corrosion of the equipment due to moisture of the crushed material inside the apparatus can be prevented, and the crushing operation can be performed stably over a long period of time. Moreover, generation | occurrence | production of the bad smell by the decay of the crushed material inside an apparatus can be prevented, and the worker near this wood crushing apparatus can work comfortably. In addition, when the end portion of the other top cover is superimposed on the substantially horizontal first portion of the one top cover, the end portion of the other top cover can be stably received. For this reason, an intervention member such as this urethane resin is not required, and handling at the time of attaching and detaching the cover is facilitated, and reliability of preventing entry of crushed material is improved. In addition, it is excellent in strength and can stably join the ends of a pair of upper surface covers without providing a horizontal frame, etc. When removing the upper surface covers and inspecting operation valves etc. inside the device Inspection workability is improved.

  Next, specific embodiments of the wood crushing apparatus of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of the wood crushing apparatus, and FIG. 2 is a rear view thereof. This wood crusher is self-propelled, and is a rotary crusher (crush body) 1 and a substantially cylindrical tab (rotary tab) that rotates around an axis and supplies wood to the rotary crusher 1 2. The tab 2 and the rotary crusher 1 are attached to the machine body 3, and a running body 4 is attached to the machine body 3. Further, a hopper 5 is attached to the upper portion of the tab 2, and wood is supplied into the tab 2 by putting wood into the hopper 5. Thus, the wood is crushed by the rotary crushed body 1, and the crushed material (crushed pieces) is supplied to the lower side of the rotary crushed body 1 and discharged to the outside by the conveyor 6. In this wood crushing apparatus, the traveling body 4 is a crawler type, but it may be a tire type. Further, the traveling body 4 may not be provided and may be a stationary type or a portable wood crushing device.

  In this case, on the rear side of the body 3, the tab 2 can be rotated around its axis by a drive mechanism (not shown), and the hopper 5 is supported by a column 7 erected from the body 3. The lower end of the tab 2 is externally fitted to the upper end of the tab 2. The crusher 1 is disposed on the lower side of the tab 2. Here, the direction from which the conveyor 6 protrudes is referred to as the front, and the direction from which the conveyor 6 does not protrude is referred to as the rear. Note that the hopper 5 has an inlet 8 that is inclined with respect to a horizontal plane. Further, the inlet 8 is provided with a scattering prevention cover 9 that partially covers the hopper 5.

  When wood (object to be crushed) is introduced into the insertion port 8 of the hopper 5 by a loading machine (not shown) or the like, the wood is introduced into the rotating tab 2, and the crushing machine 1 is driven by the rotating tab 2. To be introduced. Then, the wood is crushed by the crusher 1, and crushed pieces (wood pieces) having a predetermined particle size or less are supplied to the transport conveyor 6 and discharged to the outside via a screen (not shown). In addition, some of the crushed pieces are scattered upward during crushing, and the crushed pieces scattered upward collide with the anti-scattering cover 9 to prevent scattering from the hopper 5 to the outside.

  By the way, an engine room 10 in which an engine (not shown) and the like are stored is provided on the front side of the body 3, and a device storage unit 11 is provided on the rear side of the engine room 10. That is, the engine enclosure 12 is disposed in the body 3, and the engine compartment 10 is configured by the inside of the engine enclosure 12. As shown in FIGS. 1, 3, and 4, the engine enclosure 12 includes an enclosure main body 13, an outer cover 15 that closes an opening of the upper wall 14 of the enclosure main body 13, and one of the enclosure main bodies 13. And a side cover 16 attached to the side. As shown in FIG. 3, an inspection opening 18 is formed in the enclosure body 13 on the other side opposite to the side cover 16, and this inspection opening 18 is blocked by a door 20. Yes.

  The front end 20a of the door 20 is pivotably connected to a front end vertical frame 22 on one side (door side) of the frame body 21 of the enclosure body 13 via a hinge mechanism (not shown). As shown in FIG. 5, the upper end portion 23 of the door 20 is curved inward, and the upper end edge portion 23 a is formed in a substantially horizontal shape. Further, a cover member 24 is attached to the upper wall 14 of the enclosure main body 13 by a fixture 38 including a bolt member 17 and a nut member 19. The cover member 24 is formed of a flat plate formed with hanging portions 24a and 24b whose both end portions hang downward, and is attached to a connecting portion 25 that connects the frame body 21 in the front-rear direction. The connecting portion 25 includes a horizontal piece portion 25a and an inclined piece portion 25b. The horizontal piece portion 25a is overlapped with the horizontal direction portion 26 of the frame body 21, and the nut member 28 of the connecting portion 25 is covered with the cover member 24 and the spacer portion. The cover member 24 is attached to the frame body 21 by screwing a bolt member 27 inserted through the frame 39.

  At this time, the upper end edge 23a of the door 20 and the outer hanging portion 24a of the cover member 24 are vertically wrapped. That is, the upper end edge 23 a is covered from above by the hanging portion 24 a of the cover member 24. Further, a hanging wall portion 29 is provided in the vicinity of the hanging portion 24 a of the cover member 24 along the hanging portion 24 a, and is formed by the upper edge portion 23 a of the door 20 and the hanging portion 24 a of the cover member 24. A gap S that opens in the direction is covered from the inside of the cover member 24. By the way, the engine enclosure 12, the door 20, and the like can be referred to as an exterior cover 30, and the exterior cover 30 is configured by the upper wall portion 31 configured by the upper wall 14 of the enclosure body 13 and the door 20. The vertical wall portion 32 is formed so that a crushed material (crushed piece) is formed at the boundary between the upper wall portion 31 (upper wall 14) and the substantially vertical wall portion 32 (door 20). The overlapping structure 33 for preventing the intrusion into the inside of the apparatus from above is provided.

  That is, in the crushing operation or the like, the scattering prevention cover 9 cannot prevent all the crushed materials (crushed pieces) from being scattered outside the hopper 5, and some of the crushed materials are externally introduced from the inlet 8 of the hopper 5. Scatter to. In this case, since the crushed material scatters upward, the crushed material scattered upward falls to the apparatus. In addition, dust at the time of loading (injecting) wood, which is an object to be crushed, also floats in the vicinity of the device, and such dust may fall into the device. However, in this apparatus, a gap that opens upward is not provided between the upper wall portion 31 (upper wall 14) and the substantially vertical wall portion 32 (door 20). In this case, the crushed material and dust can be prevented from entering the inside of the apparatus (in this case, the engine compartment 10). In this case, the hanging portion 24a on one side (door side) of the cover member 24 constitutes a so-called ridge portion 37, and hangs downward. A crushed material (wood piece) or the like on the ridge portion 37 from above. Does not accumulate. Further, since a hanging wall portion 29 is provided in the vicinity of the hanging portion 24a of the cover member 24 along the hanging portion 24a, a labyrinth portion 34 for preventing intrusion of crushed materials or the like from the lateral direction into the apparatus. Will be established. For this reason, intrusion of crushed materials or the like into the apparatus can be further prevented.

  Incidentally, a front cover 35 is provided on the front side of the engine compartment 10. Therefore, as shown in FIG. 6, an overlapping structure 33 is provided at the boundary between the outer cover 15 of the engine enclosure 12 and the upper surface of the front cover 35. In this case, an extending portion 36 is provided on the upper wall 14 of the enclosure main body 13, and the extending portion 36 protrudes toward the front cover 35. Further, the extended portion 36 is provided with a collar portion 37 that is inclined downward in order toward the front cover 35 side at the distal end portion thereof. That is, also in this case, if the engine enclosure 12 and the front cover 35 are called the exterior cover 30, the upper wall 14 of the enclosure body 13 becomes the upper wall portion 31, and the front cover 35 becomes the substantially vertical wall portion 32. . Therefore, in the boundary part between the upper wall part 31 and the substantially vertical wall part 32, the opening part opened upwards is not provided, and even if crushed materials etc. scatter from the upper part from the upper part, Intrusion of crushed materials or the like into the apparatus (engine room 10) can be prevented. Moreover, since the front end portion of the extending portion 36 is provided with a flange portion 37 that is inclined downward toward the front cover 35 side, crushed material (wood powder) or the like scattered from above is difficult to collect in the flange portion 37. It will fall down.

  As shown in FIG. 1, the device storage unit 11 is configured by a device enclosure 41 provided in the machine body 3, and the upper wall 43 of the exterior cover 42 includes a plurality of pieces as shown in FIGS. 7 and 8. Consists of upper surface covers 44. In this case, first, the upper surface cover 44a on the engine enclosure 12 side and the adjacent upper surface cover 44b will be described. The end portion (rear end portion) E1 of one (front side) upper surface cover 44a includes a substantially horizontal first portion 46, a vertical portion 47 extending in the vertical direction from the tip of the substantially horizontal first portion 46, and The upper surface portion 44b has a substantially horizontal second portion 48 extending from the lower end of the vertical portion 47 toward the other upper surface cover 44b, and the upper surface of the other upper surface cover 44b on the upper surface of the substantially horizontal first portion 46 of the upper surface cover 44a. The end (front end) E2 is overlapped. In the overlapping portion 50, the end portions E1 and E2 of the upper surface covers 44a and 44b are connected by a fixture 53 composed of a bolt member 51 and a nut member 52.

  Further, the upper cover 44b and the upper cover 44c behind the upper cover 44b will be described. In this case, the upper cover 44b serves as one upper cover and the upper cover 44c serves as the other upper cover. Therefore, at the rear end E1 of the top cover 44b, a substantially horizontal first portion 46, a vertical portion 47 extending in the vertical direction from the tip of the substantially horizontal first portion 46, and a lower end of the vertical portion 47 And a substantially horizontal second portion 48 extending to the other upper surface cover 44b side. Then, an end portion (front end portion) E2 of the upper surface cover 44c is superimposed on the upper surface of the first portion 46 in the substantially horizontal direction of the upper surface cover 44b, and the ends of the upper surface covers 44b and 44c are fixed by the fixture 53 in the overlapping portion 50. The parts E1 and E2 are connected. Note that a reinforcing member 55 in the left-right direction (lateral direction) that is a direction orthogonal to the front-rear direction is attached to the lower surface of each upper surface cover 44. That is, the reinforcing member 55 includes a main body portion 55 a having a substantially U-shaped cross section and flange portions 55 b and 55 b provided continuously to the main body portion 55 a, and the flange portions 55 b and 55 b are formed on the lower surface of the upper surface cover 44. It is fixed by fixing means such as welding.

  For this reason, since the end portion E2 of the other upper surface cover 44 is superimposed on the upper surface of the first portion 46 in the substantially horizontal direction of the upper surface cover 44, a pair of upper surface covers 44 to which the end portions E1 and E2 are joined together. An opening that opens upward is not generated between the upper and lower portions 44. That is, it is possible to prevent intrusion of crushed material or the like from above into the apparatus at the joint portion between the pair of upper surface covers 44 and 44. Moreover, the end E1 of the one upper surface cover 44 includes a substantially horizontal first portion 46, a vertical portion 47 extending in the vertical direction from the tip of the substantially horizontal first portion 46, and a lower end of the vertical portion 47. And has a substantially horizontal second portion 48 extending to the other upper surface cover 44 side, is excellent in strength, and the end portion E2 of the other upper surface cover 44 is substantially horizontal first portion 46 of the one upper surface cover 44. Can be stably received by the end E2 of the other upper surface cover 44. That is, an intermediate member made of urethane resin or the like or a lateral frame is not required at the joint between the pair of upper surface covers 44, 44.

  In the wood crushing apparatus, the overlapping structure 33 can prevent intrusion of crushed material or the like into the apparatus from above. For this reason, accumulation of crushed materials, etc. inside the device can be avoided, and corrosion of metal parts (various devices inside the device and the exterior cover itself) due to moisture such as crushed materials can be prevented, and crushing work over a long period of time Can be performed stably. Moreover, generation | occurrence | production of the bad odor by decay of the crushed material etc. inside an apparatus can be prevented, and the worker near this wood crushing apparatus can work comfortably.

  Further, the overlapping structure 33 is a simple structure as shown in FIG. 5 and FIG. 6 and the like, and it is possible to stably prevent entry of crushed materials into the apparatus at low cost. Reliability of preventing intrusion of crushed materials and the like inside is improved. Furthermore, if the tip portion has the flange portion 37 inclined downward, the crushed material or the like is not accumulated on the flange portion 37 and can be prevented from entering the inside of the apparatus. For example, as shown in FIG. 5, when the substantially vertical wall portion 32 is the door 20 of the opening 18 for engine room inspection, crushed material or the like does not collect on the flange portion 37, so the door 20 is opened. In this case, crushed materials do not fall. For this reason, when the engine room 10 is inspected, it is possible to prevent the worker from being contaminated with crushed materials or the like. In particular, as shown in FIG. 5, if it has a labyrinth portion 34, it is possible to further prevent the intrusion of crushed materials and the like into the apparatus. This reliably improves the reliability of preventing intrusion of crushed materials and the like into the apparatus.

  As shown in FIG. 7 and FIG. 8, there is no opening that opens upward between the pair of upper surface covers 44, 44 where the ends E, E are joined together. It is possible to prevent intrusion from above. For this reason, accumulation of crushed materials and the like inside the apparatus can be avoided, corrosion of the equipment due to moisture such as crushed materials inside the apparatus can be prevented, and the crushing operation can be performed stably over a long period of time. Moreover, generation | occurrence | production of the bad odor by decay of the crushed material etc. inside an apparatus can be prevented, and the worker near this wood crushing apparatus can work comfortably. In addition, an intervention member such as urethane resin is not required, handling at the time of attaching and detaching the cover is facilitated, and reliability of preventing entry of crushed materials and the like is improved. Further, since the end portions E of the pair of upper surface covers 44, 44 can be stably joined without providing a horizontal frame, the upper surface cover 44 is removed and the operation valves inside the apparatus are inspected. This improves the workability of inspection.

  Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, the overlapping structure 33 is not limited to the portion (position) shown in FIGS. 5 and 6, and can be provided in a portion where an opening that is open upward is conventionally formed. In FIG. 4, the overlapping structure 33 is such that the upper wall 14 that is the upper wall portion 31 is located above, and the upper edge 23 a of the door 20 that is the substantially vertical wall portion 32 is located below. On the contrary, the upper edge 23a may be positioned above and the upper wall 14 may be positioned below. Further, in FIG. 5 described above, the overlapping structure 33 is configured by using the cover member 24, but without using the cover member 24, the upper wall 14 is extended to the door 20 side, Such an overlapping structure 33 may be configured. Further, the exterior cover 42 in FIG. 7 uses a plurality of upper surface covers 44, but the number of the upper surface covers 44 can be increased or decreased.

It is a side view which shows embodiment of the wood crushing apparatus of this invention. It is a rear view of the said wood crushing apparatus. It is a principal part simple perspective view from the front side of the said wood crushing apparatus. It is a principal part simple perspective view from the back side of the said wood crushing apparatus. It is the C section expanded sectional view of the above-mentioned FIG. It is a D section expanded sectional view of the above-mentioned FIG. It is an expanded sectional view of the exterior cover which comprises the equipment storage part of the said wood crushing apparatus. It is a perspective view of the said exterior cover. It is a side view of the conventional wood crushing apparatus. FIG. 10 is an enlarged cross-sectional view of part A in FIG. It is sectional drawing which shows the door of the engine storage chamber of the conventional wood crushing apparatus. It is the B section expanded sectional view of the above-mentioned FIG. It is a principal part cross section of the exterior cover which comprises the apparatus storage part of the conventional wood crushing apparatus.

Explanation of symbols

  1 .... Crusher, 23a ... Upper edge, 30 ... Exterior cover, 31 ... Upper wall, 32 ... Substantially vertical wall, 33 ... Overlapping structure, 34 ... Labyrinth, 42 ... Exterior cover, 44 ... Upper cover, E ... End

Claims (1)

  A wood crushing apparatus for crushing wood with a crusher (1), comprising an exterior cover (42) having a pair of upper surface covers (44) (44) to which ends (E1) and (E2) are joined, An end portion (E1) of the upper surface cover (44) includes a substantially horizontal first portion (46), a vertical portion (47) extending in the vertical direction from the tip of the substantially horizontal first portion (46), A substantially horizontal second portion (48) extending from the lower end of the vertical portion (47) toward the other upper surface cover (44), and a substantially horizontal first portion (46) of one upper surface cover (44). The wood crushing apparatus characterized in that the end (E2) of the other upper surface cover (44) is overlapped with the upper surface of ().