JP2005087920A - Wood crusher - Google Patents

Wood crusher Download PDF

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JP2005087920A
JP2005087920A JP2003326498A JP2003326498A JP2005087920A JP 2005087920 A JP2005087920 A JP 2005087920A JP 2003326498 A JP2003326498 A JP 2003326498A JP 2003326498 A JP2003326498 A JP 2003326498A JP 2005087920 A JP2005087920 A JP 2005087920A
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drum
rotary
shafts
wood
wood crusher
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Gosuke Nakajima
剛介 中島
Hiroyuki Umeda
博之 梅田
Tetsuyuki Yoshida
哲幸 吉田
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Komatsu Ltd
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Komatsu Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wood crusher in which the rotational inertia of a rotary crushing body is made small and the time to be taken to restore the lowered number of revolution of the rotary crushing body is shortened and which has excellent operation efficiency. <P>SOLUTION: The rotary crushing body (20) is provided with a rotary drum (21). A plurality of seat parts (22) having female screws (22a, 22b) are arranged in the outer peripheral part of the rotary drum (21). The rotary drum (21) has a drum (23) and two shafts (25, 25). The shafts (25, 25) are respectively supported by cases (11) arranged outside the rotary drum (21) in the shaft direction while interposing bearings (19, 19). Both ends of the drum (23) are respectively attached freely detachably to the shafts (25, 25). Between each of the shafts (25, 25) and the drum (23) an engaging part (26) is arranged for almost fitting axial centers to each other and a knock pin (27) is arranged for preventing the axial centers from deviating from each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、木材を破砕する木材破砕機に関し、特に、回転式破砕体の回転立ち上り時間が短い木材破砕機に関する。   The present invention relates to a wood crusher for crushing wood, and particularly to a wood crusher with a short rotational rise time of a rotary crush body.

従来、回転式の木材破砕機については、例えば特許文献1に記載された木材破砕機が知られている。   Conventionally, for a rotary wood crusher, for example, a wood crusher described in Patent Document 1 is known.

図6及び図7は、それぞれ特許文献1に記載された木材破砕機の概略側面図及び概略正面一部断面図である。図6、図7において、木材破砕機70のケース71には回転式破砕体80の軸81の両端部が、図示しない軸受により回転自在に支持されている。軸81には、複数個のリング体82が所定の間隔で溶接により取付けられている。リング体82の外周部には軸81の長手方向に貫通する6本の軸体85が取付けられ、軸方向の両端部には図示しない抜け止めが設けられている。隣接する2つのリング体82,82の間の、外周部の所定位置には、先端部にビット83を有する複数個のハンマ84が挿入され、それぞれ2本の前記軸体85によりリング体82に、串刺し状に取付けられている。ケース71には、所定の大きさの、複数個の排出穴73を備え、上部に開口部74を有する略筒状のスクリーン板72が取付けられており、該スクリーン板72はビット83の先端部との間に所定の隙間を有して回転式破砕体80を覆っている。なお、図6はスクリーン板72を一部切り欠いて示している。   6 and 7 are a schematic side view and a schematic front partial cross-sectional view of a wood crusher described in Patent Document 1, respectively. 6 and 7, both ends of the shaft 81 of the rotary crusher 80 are rotatably supported by the case 71 of the wood crusher 70 by bearings (not shown). A plurality of ring bodies 82 are attached to the shaft 81 by welding at predetermined intervals. Six shaft bodies 85 penetrating in the longitudinal direction of the shaft 81 are attached to the outer peripheral portion of the ring body 82, and stoppers (not shown) are provided at both end portions in the axial direction. A plurality of hammers 84 each having a bit 83 at the tip are inserted at predetermined positions on the outer peripheral portion between the two adjacent ring bodies 82, 82, and each of the two shaft bodies 85 is attached to the ring body 82. Installed in a skewered shape. The case 71 is provided with a substantially cylindrical screen plate 72 having a plurality of discharge holes 73 having a predetermined size and having an opening 74 in the upper portion. The rotary crushed body 80 is covered with a predetermined gap therebetween. In FIG. 6, the screen plate 72 is partially cut away.

木材を破砕するときは、図6に示すように、被破砕木材90をスクリーン板72の開口部74の上方から供給し、回転式破砕体80を回転させてビット83で破砕する。所定の大きさに破砕された製品91はスクリーン板72の排出穴73から下方に排出される。   When the wood is crushed, as shown in FIG. 6, the crushed wood 90 is supplied from above the opening 74 of the screen plate 72, and the rotary crusher 80 is rotated and crushed by the bit 83. The product 91 crushed to a predetermined size is discharged downward from the discharge hole 73 of the screen plate 72.

特開2002−192000号公報(第3頁、第3−4図)JP 2002-192000 (page 3, FIG. 3-4)

しかしながら、上記構成においては、以下のような問題点がある。図8は、木材破砕機の一般的な運転状況を示すタイムチャートであり、縦軸は回転式破砕体の回転数、横軸は経過時間を示す。Nは目標回転数であり、曲線nは回転式破砕体の実回転状況を示す。図8において、破砕作業を開始すると、略目標回転数Nで回転していた回転式破砕体80の回転数は破砕負荷により時間と共に低下する。そして回転数が所定の回転数N1以下に低下すると、被破砕木材の供給を所定時間(T1)停止し、回転数を回復させる。回転数が所定値(>N1)まで回復すると、再び被破砕木材の供給を開始する。このような動作を繰り返して破砕作業を行うが、作業内容によっては停止時間の合計(T1+T2+T3+・・・)は全体時間の大きな割合を占め、作業効率が低下するという問題が生じている。この停止時間が長い原因の一つとして、回転式破砕体80の回転数の回復時間が長いことがある。従来のものは前述のように、重量の大きいハンマ84、軸体85及びリング体82が回転式破砕体80の外周部に位置しているため、回転式破砕体80の回転慣性が大きく、回復時間が長いので、作業効率を低下させている。   However, the above configuration has the following problems. FIG. 8 is a time chart showing a general operation status of the wood crusher, where the vertical axis indicates the number of rotations of the rotary crushing body, and the horizontal axis indicates the elapsed time. N is the target rotational speed, and the curve n indicates the actual rotational state of the rotary crushed body. In FIG. 8, when the crushing operation is started, the rotational speed of the rotary crushed body 80 that has been rotated at the substantially target rotational speed N decreases with time due to the crushing load. And if rotation speed falls below predetermined rotation speed N1, supply of to-be-crushed wood will be stopped for predetermined time (T1), and rotation speed will be recovered. When the rotational speed recovers to a predetermined value (> N1), the supply of the crushed wood is started again. Although the crushing work is performed by repeating such an operation, depending on the work contents, the total stop time (T1 + T2 + T3 +...) Occupies a large proportion of the total time, resulting in a problem that work efficiency is lowered. One of the causes of the long stop time is a long recovery time of the rotational speed of the rotary crusher 80. As described above, the conventional hammer 84, the shaft body 85, and the ring body 82 are positioned on the outer peripheral portion of the rotary crushing body 80, so that the rotational inertia of the rotary crushing body 80 is large and the conventional one is recovered. Since the time is long, work efficiency is reduced.

本発明は上記の問題点に着目してなされたもので、低下した回転数の回復時間を短くでき、作業効率の良い木材破砕機を提供することを目的とする。   The present invention has been made paying attention to the above-mentioned problems, and an object of the present invention is to provide a wood crusher that can shorten the recovery time of the reduced rotational speed and has high work efficiency.

上記目的を達成するために、第1発明は、木材破砕機において、回転ドラムを備え、前記回転ドラムの外周部に雌ねじ付の複数個の座部を設けた構成としている。   In order to achieve the above object, according to a first aspect of the present invention, in the wood crusher, a rotary drum is provided, and a plurality of seats with female threads are provided on an outer peripheral portion of the rotary drum.

また第2発明は、第1発明の木材破砕機において、前記回転ドラムは、ドラムと2本の軸とを有し、該2本の軸は、回転ドラムの軸方向外方に設けられたケースにそれぞれ軸受を介して支持され、前記ドラムは、両端部が前記2本の軸にそれぞれ着脱自在に取り付けられ、前記2本の軸及び前記ドラムは、互いの軸心を略合わせるための嵌め合い部と、軸心のずれを防止するためのノックピンとを備えた構成としている。   According to a second aspect of the present invention, in the wood crusher of the first aspect, the rotating drum has a drum and two shafts, and the two shafts are provided on the axially outer side of the rotating drum. Each end of the drum is removably attached to the two shafts, and the two shafts and the drum are fitted together so that their axes are substantially aligned with each other. And a knock pin for preventing the shaft center from shifting.

第1発明によると、木材破砕機は回転ドラムを備え、回転ドラムの外周部に雌ねじ付の複数個の座部を設けた。そのため、回転ドラムの半径方向に所定の長さの破砕部を前記座部に取付け、破砕部の先端部の最外径を従来と変えずに回転ドラムの直径を小さくすることが可能となり、従来のように重量の重い破砕部取付部材を半径の大きい位置に設ける必要は無い。したがって、回転慣性を小さくすることができ、破砕作業において破砕負荷が大きな被破砕材を破砕している時に、破砕機の回転数が低下した場合でも、回転数の回復時間を短くすることができ、作業効率を向上できる。又、回転ドラムの肉厚を適宜変更することにより、種々の被破砕物(例えば枯れ木材のように軽負荷のものから根株のように重負荷のものまで)に対して、最適な回転慣性力を与えることができ、作業効率を向上できる。さらに、複数個の破砕部を個別に取付けることができ、それぞれを着脱自在にできるので、廃木材破砕時石、釘等が混入して破砕部の一部が損傷した場合でも、交換したい破砕部のみを単独で交換できる。そのため、破砕部の交換部品点数も少なく、短時間で整備可能であり、稼動停止時間が短くなり、作業効率を向上できる。しかも、メインテナンスコストを安くできる。   According to the first invention, the wood crusher includes a rotating drum, and a plurality of seats with female threads are provided on the outer peripheral portion of the rotating drum. Therefore, a crushing part having a predetermined length in the radial direction of the rotating drum can be attached to the seat part, and the diameter of the rotating drum can be reduced without changing the outermost diameter of the tip part of the crushing part. Thus, there is no need to provide a heavy crushing part mounting member at a position with a large radius. Therefore, the rotational inertia can be reduced, and the recovery time of the rotational speed can be shortened even if the rotational speed of the crusher decreases when the material to be crushed is crushed in the crushing operation. , Work efficiency can be improved. In addition, by appropriately changing the thickness of the rotating drum, the optimum rotational inertia force for various objects to be crushed (for example, from light loads such as dead wood to heavy loads such as roots) Work efficiency can be improved. In addition, a plurality of crushing parts can be attached individually, and each can be made detachable, so even if stones, nails, etc. are mixed during waste wood crushing and the crushing part is damaged, the crushing part you want to replace Can be replaced alone. For this reason, the number of replacement parts in the crushing section is small and can be maintained in a short time, the operation stop time is shortened, and work efficiency can be improved. In addition, maintenance costs can be reduced.

第2発明によると、回転ドラムを構成するドラムと該ドラムの両端部に着脱自在に取り付ける2本の軸とは、互いの軸心を略合わせるための嵌め合い部と、軸心のずれを防止するためのノックピンとを備えた。そのため、嵌め合い部の精度は厳しくする必要は無く、加工が容易であり、しかも嵌め合い部をガイドとして、2本の軸とドラムとを容易に概略の軸心合わせができる。また、ノックピンの打ち込み等の組立が容易で、ノックピンによりドラム両端部の軸の軸心のずれを防止できるため、軸受への組付けが容易であると共に耐久性を確保でき、さらにコストを安くできる。   According to the second invention, the drum constituting the rotating drum and the two shafts that are detachably attached to both end portions of the drum are fitted to each other so as to substantially align the shaft centers, and the shaft center is prevented from being displaced. With a knock pin to do. Therefore, it is not necessary to make the accuracy of the fitting portion strict, it is easy to process, and the two shafts and the drum can be easily roughly aligned with the fitting portion as a guide. In addition, assembly of knock pins, etc. is easy, and the knock pins can prevent the shaft centers of the drum ends from being displaced, so that they can be easily assembled to the bearings and ensure durability, further reducing costs. .

以下、本発明に係る木材破砕機の実施形態について、図面を参照して詳細に説明する。   Hereinafter, an embodiment of a wood crusher according to the present invention will be described in detail with reference to the drawings.

図1は、本発明が適用される自走式木材破砕装置の外観斜視図である。図1において、自走式木材破砕装置1は、機台3の下部に左右1対のクローラ式走行装置2.2を備え、機台3の後部には、木材を破砕する破砕装置4を搭載している。破砕装置4は、被破砕木材が投入されるホッパ5と、該ホッパ5の下方に配置され、略鉛直な軸を中心に回転する回転タブ6と、回転タブ6の下方に設けられた木材破砕機10とを備えている。また、機台3の前部にはエンジン等の動力源7が搭載され、木材破砕機10の下方から動力源7の下方を経由し機台3の前方に向けて製品を搬出する排出コンベヤ8が配置されている。   FIG. 1 is an external perspective view of a self-propelled wood crusher to which the present invention is applied. In FIG. 1, a self-propelled wood crushing device 1 includes a pair of left and right crawler type traveling devices 2.2 at the lower part of a machine base 3, and a crushing device 4 for crushing wood is mounted at the rear of the machine base 3. doing. The crushing device 4 includes a hopper 5 into which wood to be crushed is placed, a rotary tab 6 that is disposed below the hopper 5 and rotates about a substantially vertical axis, and a wood crusher provided below the rotary tab 6. Machine 10. In addition, a power source 7 such as an engine is mounted on the front of the machine base 3, and a discharge conveyor 8 that carries out products from the lower side of the wood crusher 10 to the front of the machine base 3 via the lower side of the power source 7. Is arranged.

木材破砕作業を行う場合には、自走式木材破砕装置1をクローラ式走行装置2,2により所定位置に移動し、ホッパ5に積込機等で被破砕木材を投入する。投入された被破砕木材は回転タブ6の回転によって木材破砕機10に供給され、破砕される。破砕された製品は排出コンベヤ8によって機外に搬出される。   When performing the wood crushing operation, the self-propelled wood crushing device 1 is moved to a predetermined position by the crawler type traveling devices 2 and 2, and the wood to be crushed is put into the hopper 5 with a loader or the like. The supplied crushed wood is supplied to the wood crusher 10 by the rotation of the rotary tab 6 and crushed. The crushed product is carried out of the apparatus by the discharge conveyor 8.

図2は実施形態に係る木材破砕機の概略側面図である。図2において、木材破砕機10のケース11には、回転式破砕体20の両端部が軸受(図示せず)により回転自在に支持されており、回転式破砕体20の両端部には回転式破砕体20を駆動する油圧モータ12,13が連結されている。回転式破砕体20は軸方向中央部に回転ドラム21を備え、該回転ドラム21の外周面の所定位置には、図示しない雌ねじを備えた複数個の座部22が溶接により固着されている。該座部22には、それぞれ破砕部30が着脱自在に取付けられている。ケース11には、製品の大きさを規定する複数個の排出穴15を備え、かつ上部に開口部16を有する略筒状のスクリーン板14が取付けられており、このスクリーン板14は、破砕部30の先端部のビットとの間に所定の隙間を持って回転式破砕体10の外周部を覆っている。なお、図2において、スクリーン板14は一部破断して示している。   FIG. 2 is a schematic side view of the wood crusher according to the embodiment. In FIG. 2, both ends of the rotary crusher 20 are rotatably supported by bearings (not shown) in the case 11 of the wood crusher 10. Hydraulic motors 12 and 13 for driving the crushed body 20 are connected. The rotary crushing body 20 includes a rotating drum 21 in the center in the axial direction, and a plurality of seats 22 each having a female screw (not shown) are fixed to a predetermined position on the outer peripheral surface of the rotating drum 21 by welding. Each crushing part 30 is detachably attached to the seat part 22. The case 11 is provided with a substantially cylindrical screen plate 14 having a plurality of discharge holes 15 for defining the size of the product and having an opening 16 at the top thereof. The outer periphery of the rotary crushed body 10 is covered with a predetermined gap between the bit at the tip of 30. In FIG. 2, the screen plate 14 is shown partially broken.

本木材破砕機10による破砕作業は従来のものと同様なので、ここでの詳細な説明は省略する。   Since the crushing operation by the wood crusher 10 is the same as the conventional one, detailed description thereof is omitted here.

図3は実施形態に係る回転式破砕体の正面図である。図3において、回転ドラム21の外周面部の所定位置には、雌ねじ22a,22bを備えた複数個の座部22が溶接により固着されている。座部22には、半径方向に所定長さを有し、先端部にビット40を備えた破砕部30がそれぞれボルト50,51により着脱自在に取り付けられている。本実施形態の回転ドラム21の外径Dはビット40の最外径Eよりも大幅に小さく、しかもこのビット40の最外径Eは従来のものと同一で、前記回転ドラム21の外径Dは従来の回転破砕体80のリング体82の外径よりも小さくなるように構成している。   FIG. 3 is a front view of the rotary crushed body according to the embodiment. In FIG. 3, a plurality of seat portions 22 having female screws 22a and 22b are fixed to a predetermined position on the outer peripheral surface portion of the rotary drum 21 by welding. A crushing portion 30 having a predetermined length in the radial direction and provided with a bit 40 at the tip portion is detachably attached to the seat portion 22 by bolts 50 and 51, respectively. The outer diameter D of the rotating drum 21 of the present embodiment is significantly smaller than the outermost diameter E of the bit 40, and the outermost diameter E of the bit 40 is the same as that of the conventional one. Is configured to be smaller than the outer diameter of the ring body 82 of the conventional rotary crush body 80.

図4は、ケースの軸受に支持された回転ドラムの側面断面図である。図4において、ケース11の軸方向外方には軸受箱17,18を介して一対の軸受19,19が取付けられている。回転ドラム21は、ドラム23と、軸方向の両端部に着脱自在に取付けられる一対の軸25,25とを備えている。すなわち、ドラム23の軸方向の両端部には側板24,24が溶接等で取付けられており、両側の側板24,24にそれぞれ軸25,25が着脱自在に取付けられている。側板24と軸25との間には、嵌め合い部26とノックピン27とが設けられている。   FIG. 4 is a side cross-sectional view of the rotating drum supported by the bearing of the case. In FIG. 4, a pair of bearings 19, 19 are attached to the outer side of the case 11 in the axial direction via bearing housings 17, 18. The rotary drum 21 includes a drum 23 and a pair of shafts 25 and 25 that are detachably attached to both end portions in the axial direction. That is, side plates 24 and 24 are attached to both end portions of the drum 23 in the axial direction by welding or the like, and shafts 25 and 25 are detachably attached to the side plates 24 and 24 on both sides, respectively. A fitting portion 26 and a knock pin 27 are provided between the side plate 24 and the shaft 25.

図5は、本実施形態のドラムと軸との取付部の詳細図である。図5において、ドラム23の端部に取り付けられた側板24には、略中心部に嵌め合い穴24aが形成されている。軸25の取付端部に形成されたフランジ25aには、前記嵌め合い穴24aに嵌合する段付部25bが設けられており、該段付部25bと嵌め合い穴24aとで嵌め合い部26を構成している。側板24の嵌め合い穴24aの直径Aは、軸25の段付部25bの直径Bよりも所定長さだけ大きく設定されており、例えばA=B+4mmに設定する。軸25のフランジ25aは側板24にボルト28により締着され、軸25及びドラム23は、図3に示すように対向位置に配置された2本のノックピン27,27により位置決めされ、両端部の軸25,25の心ずれを防止している。   FIG. 5 is a detailed view of the attachment portion between the drum and the shaft of the present embodiment. In FIG. 5, the side plate 24 attached to the end of the drum 23 is formed with a fitting hole 24a substantially at the center. A flange 25a formed at the mounting end of the shaft 25 is provided with a stepped portion 25b that fits into the fitting hole 24a. The fitting portion 26 is formed by the stepped portion 25b and the fitting hole 24a. Is configured. The diameter A of the fitting hole 24a of the side plate 24 is set to be larger than the diameter B of the stepped portion 25b of the shaft 25 by a predetermined length, for example, A = B + 4 mm. The flange 25a of the shaft 25 is fastened to the side plate 24 with bolts 28, and the shaft 25 and the drum 23 are positioned by two knock pins 27, 27 arranged at opposite positions as shown in FIG. 25, 25 misalignment is prevented.

以上説明したように、本発明によると、回転ドラムを備え、該回転ドラムの外周部に雌ねじ付の複数個の座部を設けたため、従来のように重量の重い破砕部取付部材を半径の大きい位置に設ける必要は無くなり、よって回転慣性を小さくすることができる。これにより、ビットの最外径寸法が同一で作業能力を確保した上、さらに破砕負荷で回転数が低下した場合、回転数の回復時間を短くすることができ、作業効率を向上できる。また、回転ドラムは、ドラムと該ドラムの両端部に着脱自在に取り付ける2本の軸とを備え、この2本の軸はドラム両端部に嵌め合わせて取り付け、ノックピンで心ずれを防止する構成なので、回転ドラムの加工が容易にでき、また軸受への組付けが容易にできる。   As described above, according to the present invention, the rotating drum is provided, and a plurality of seats with female screws are provided on the outer peripheral portion of the rotating drum. There is no need to provide it at the position, so that the rotational inertia can be reduced. Thereby, when the outermost diameter dimension of the bit is the same and the work capacity is secured, and when the rotational speed is further reduced by the crushing load, the recovery time of the rotational speed can be shortened, and the working efficiency can be improved. The rotating drum includes a drum and two shafts that are detachably attached to both ends of the drum. The two shafts are fitted and attached to both ends of the drum, and are configured to prevent misalignment with a knock pin. The rotating drum can be easily processed and can be easily assembled to the bearing.

本発明の活用例として、上記実施形態の木材破砕機は履帯式の自走式木材破砕装置に搭載したものであるが、木材破砕装置の他の移動形式、例えば車輪式、牽引式等にも適用可能である。また、定置式木材破砕装置にも適用できる。   As an application example of the present invention, the wood crusher of the above embodiment is mounted on a crawler type self-propelled wood crushing device, but other types of movement of the wood crushing device, for example, wheel type, towed type, etc. Applicable. It can also be applied to a stationary wood crusher.

本発明が適用される自走式木材破砕装置の外観斜視図である。1 is an external perspective view of a self-propelled wood crusher to which the present invention is applied. 実施形態に係る木材破砕機の概略側面図である。It is a schematic side view of the wood crusher which concerns on embodiment. 実施形態に係る回転式破砕体の正面図である。It is a front view of the rotary crushing object concerning an embodiment. 実施形態に係る回転ドラムの側面断面図である。It is side surface sectional drawing of the rotating drum which concerns on embodiment. 実施形態に係るドラムと軸との取付部の詳細図である。It is detail drawing of the attaching part of the drum and shaft which concerns on embodiment. 従来の木材破砕機の概略側面図である。It is a schematic side view of the conventional wood crusher. 従来の木材破砕機の概略正面一部断面図である。It is a schematic front fragmentary sectional view of the conventional wood crusher. 木材破砕機の一般的な運転状況を示すタイムチャートである。It is a time chart which shows the general driving | running state of a wood crusher.

符号の説明Explanation of symbols

1…自走式木材破砕装置、4…破砕装置、5…ホッパ、6…回転タブ、10…木材破砕機、11…ケース、14…スクリーン板、17,18…軸受箱、19…軸受、20…回転式破砕体、21…回転ドラム、22…座部、22a,22b…雌ねじ、23…ドラム、24…側板、24a…嵌め合い穴、25…軸、25a…フランジ、25b…段付部、26…嵌め合い部、27…ノックピン、30…破砕部、40…ビット、72…スクリーン板、80…回転式破砕体、81…軸、82…リング体、83…ビット、84…ハンマ、85…軸体。
DESCRIPTION OF SYMBOLS 1 ... Self-propelled wood crushing device, 4 ... Crushing device, 5 ... Hopper, 6 ... Rotary tab, 10 ... Wood crusher, 11 ... Case, 14 ... Screen board, 17, 18 ... Bearing box, 19 ... Bearing, 20 DESCRIPTION OF SYMBOLS: Rotary crushing body, 21 ... Rotary drum, 22 ... Seat part, 22a, 22b ... Female screw, 23 ... Drum, 24 ... Side plate, 24a ... Mating hole, 25 ... Shaft, 25a ... Flange, 25b ... Stepped part, 26 ... fitting part, 27 ... knock pin, 30 ... crushing part, 40 ... bit, 72 ... screen plate, 80 ... rotary crushing body, 81 ... shaft, 82 ... ring body, 83 ... bit, 84 ... hammer, 85 ... Shaft body.

Claims (2)

木材破砕機において、
回転ドラム(21)を備え、
前記回転ドラム(21)の外周部に雌ねじ(22a,22b)付の複数個の座部(22)を設けた
ことを特徴とする木材破砕機。
In the wood crusher
Equipped with a rotating drum (21),
A wood crusher characterized in that a plurality of seats (22) with internal threads (22a, 22b) are provided on the outer periphery of the rotating drum (21).
請求項1記載の木材破砕機において、
前記回転ドラム(21)は、ドラム(23)と2本の軸(25,25)とを有し、
該2本の軸(25,25)は、回転ドラム(21)の軸方向外方に設けられたケース(11)にそれぞれ軸受(19,19)を介して支持され、
前記ドラム(23)は、両端部が前記2本の軸(25,25)にそれぞれ着脱自在に取り付けられ、
前記2本の軸(25,25)及び前記ドラム(23)は、互いの軸心を略合わせるための嵌め合い部(26)と、軸心のずれを防止するためのノックピン(27)とを備えた
ことを特徴とする木材破砕機。
The wood crusher according to claim 1,
The rotating drum (21) has a drum (23) and two shafts (25, 25),
The two shafts (25, 25) are respectively supported by bearings (19, 19) on a case (11) provided on the outer side in the axial direction of the rotating drum (21).
Both ends of the drum (23) are detachably attached to the two shafts (25, 25), respectively.
The two shafts (25, 25) and the drum (23) are provided with a fitting portion (26) for substantially aligning the shaft centers with each other, and a knock pin (27) for preventing displacement of the shaft centers. A wood crusher characterized by comprising.
JP2003326498A 2003-09-18 2003-09-18 Wood crusher Pending JP2005087920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003326498A JP2005087920A (en) 2003-09-18 2003-09-18 Wood crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003326498A JP2005087920A (en) 2003-09-18 2003-09-18 Wood crusher

Publications (1)

Publication Number Publication Date
JP2005087920A true JP2005087920A (en) 2005-04-07

Family

ID=34456676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003326498A Pending JP2005087920A (en) 2003-09-18 2003-09-18 Wood crusher

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007125506A (en) * 2005-11-04 2007-05-24 Komatsu Zenoah Co Crushing blade and branch and leaf crushing machine equipped with this

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007125506A (en) * 2005-11-04 2007-05-24 Komatsu Zenoah Co Crushing blade and branch and leaf crushing machine equipped with this

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