JP2016077979A - Shearing type crusher and rotary cutter of the same - Google Patents

Shearing type crusher and rotary cutter of the same Download PDF

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JP2016077979A
JP2016077979A JP2014213037A JP2014213037A JP2016077979A JP 2016077979 A JP2016077979 A JP 2016077979A JP 2014213037 A JP2014213037 A JP 2014213037A JP 2014213037 A JP2014213037 A JP 2014213037A JP 2016077979 A JP2016077979 A JP 2016077979A
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blade
mounting base
spacer
blade mounting
drive shaft
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秀正 上野
Hidemasa Ueno
秀正 上野
光陽 上野
Mitsuaki Ueno
光陽 上野
宗正 上野
Munemasa Ueno
宗正 上野
楠　秀樹
Hideki Kusunoki
秀樹 楠
弘喜 飯吉
Hiroki Iiyoshi
弘喜 飯吉
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Uenotex Co Ltd
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Uenotex Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To effectively suppress wear of a cutter mount for fixing the respective cutters in a biaxial shearing type crusher constituting a rotary cutter of a plurality of divided cutters.SOLUTION: A cutter mount 20 and a spacer 11 are alternately inserted into a drive shaft 1, and the cutter mount 20 and the spacer 11 are assembled to the drive shaft 1. The respective divided cutters 6 are locked to a cutter mounting surface 21 of the cutter mount 20 with a bolt 30, and the cutters 6 adjacent in a circumferential direction are further and integrally coupled with each other with a bolt 31. An outer diameter of the spacer 11 is made into a diameter larger than that of a virtual circumcircle S of the cutter mount 20, and both sides of the cutter mount 20 is prevented from being exposed to the outside by covering both sides of the cutter mount 20 with the spacer 11.SELECTED DRAWING: Figure 1

Description

本発明は、各種の被破砕物を破砕処理するために、分割した複数の切断刃で被破砕物を破砕処理する剪断式破砕機、及びその複数の切断刃から成る回転刃の構造に関するものであり、特に、その回転刃を並行に一対備えた二軸剪断式破砕機の構造に関するものである。   The present invention relates to a shearing crusher that crushes a material to be crushed with a plurality of divided cutting blades and a structure of a rotary blade including the plurality of cutting blades in order to crush various materials to be crushed. In particular, the present invention relates to the structure of a biaxial shearing crusher having a pair of rotating blades in parallel.

さらに、本発明は、被破砕物を破砕処理する剪断式破砕機の回転刃を構成する要素であるところの分割された複数の切断刃の新規な構造に関するものである。   Furthermore, the present invention relates to a novel structure of a plurality of divided cutting blades which are elements constituting a rotary blade of a shearing type crusher for crushing an object to be crushed.

従来から剪断力を利用してプラスチック、木片、金属、ゴム等、各種の被破砕物を破砕処理する二軸剪断式破砕機が知られており、例えば特許文献１などにおいて、上下にそれぞれ処理物の投入口と排出口とを有するケーシングと、このケーシング内に軸受を介して回転可能に支持された平行する一対の駆動軸と、この各駆動軸上にスペーサを挟んで交互に配置される回転刃を備え、投入口からケーシング内に供給した被破砕物を互いに逆方向に回転する回転刃で巻き込むようにしてその剪断作用で破砕され、破砕された破砕物を回転刃の下方に設けた排出口より排出するように構成した二軸剪断式破砕機が開示されている。   2. Description of the Related Art Conventionally, there is known a biaxial shearing type crusher that uses a shearing force to crush various objects to be crushed, such as plastic, wood, metal, rubber, etc. A casing having a charging port and a discharging port, a pair of parallel drive shafts rotatably supported via bearings in the casing, and rotations alternately arranged with spacers on the drive shafts The blade is provided with a blade, and the object to be crushed supplied into the casing from the inlet is crushed by the rotating action of rotating blades rotating in opposite directions, and the crushed crushed material is disposed below the rotating blade. A twin-screw shearing crusher configured to discharge from an outlet is disclosed.

ところでこの種の二軸剪断式破砕機においては、特許文献１と同様に、例えば図１２に示すように、刃部を形成した回転刃１０１を駆動軸１００とは別体で製造し、スペーサ１０２を挟んで駆動軸１００に装着した二軸剪断式破砕機が知られているが、回転刃１０１が一体的に繋がった中空円板状の回転刃１０１を駆動軸１００に装着するタイプでは、回転刃１０１の一部のみが破損あるいは磨耗した場合であってもその回転刃１０１全体を交換する必要がある。さらに、回転刃１０１を１枚でも取り替えるには、ケーシングから軸受を分解して駆動軸１００を取り外した後、図１３に示すように駆動軸１００からスペーサ１０２と回転刃１０１を引き抜く必要があり、極めて煩雑で手間のかかる作業を強いられる。   By the way, in this kind of biaxial shearing type crusher, as in Patent Document 1, for example, as shown in FIG. 12, a rotary blade 101 having a blade portion is manufactured separately from the drive shaft 100, and a spacer 102 is produced. There is known a biaxial shearing crusher that is mounted on the drive shaft 100 with a rotary blade 101 interposed therebetween. However, in the type in which a hollow disk-shaped rotary blade 101 integrally connected to the rotary blade 101 is mounted on the drive shaft 100, the rotation Even when only a part of the blade 101 is damaged or worn, it is necessary to replace the entire rotary blade 101. Further, in order to replace even one rotary blade 101, it is necessary to disassemble the bearing from the casing and remove the drive shaft 100, and then pull out the spacer 102 and the rotary blade 101 from the drive shaft 100 as shown in FIG. It is extremely complicated and laborious.

このため、例えば特許文献２などに示すように、周方向に分割した複数の切断刃によって被破砕物を破砕処理する回転刃を構成した二軸剪断式破砕機も提案されている。この特許文献２に示すタイプの二軸剪断式破砕機では、分割した複数の各切断刃を固定する刃物取付台と、その各切断刃によって構成される回転刃の間隔を保持するためのスペーサとを軸方向に並設させて駆動軸に取り付けられおり、回転刃を構成する複数の各切断刃は、ボルトによって刃物取付台に着脱自在に固定されている。そして、前記刃物取付台と、この刃物取付台と隣接するスペーサとを密着するようにして駆動軸に取付けることによって、スペーサで各切断刃の位置決めと剪断時の横方向（駆動軸方向）の荷重を支持している。   For this reason, as shown, for example in patent document 2, etc., the biaxial shearing type crusher which comprised the rotary blade which crushes a to-be-crushed object with the some cutting blade divided | segmented into the circumferential direction is also proposed. In the biaxial shearing type crusher of the type shown in Patent Document 2, a blade mounting base for fixing each of a plurality of divided cutting blades, and a spacer for maintaining the interval between the rotary blades constituted by the cutting blades, A plurality of cutting blades constituting the rotary blade are detachably fixed to the blade mounting base by bolts. Then, the blade mounting base and the spacer adjacent to the blade mounting base are attached to the drive shaft so that the blade is positioned and sheared in the lateral direction (drive shaft direction). Support.

また、特許文献２に示すような二軸剪断式破砕機では、各切断刃と、この各切断刃を固定する刃物取付台の取付面にはそれぞれ周方向に階段状の段差部が形成され、この各切断刃と刃物取付台の段差部を相互に噛み合うように嵌合させることによって、各切断刃を刃物取付台に位置決めした状態でボルトによって刃物取付台に各切断刃を組み付けて固定している（特許文献の図２参照）。   Moreover, in the biaxial shearing type crusher as shown in Patent Document 2, stepped steps are formed in the circumferential direction on the mounting surfaces of the cutting blades and the blade mounting base for fixing the cutting blades, By fitting the stepped portions of the cutting blades and the blade mounting base so as to mesh with each other, the cutting blades are assembled and fixed to the blade mounting base with bolts while the cutting blades are positioned on the blade mounting base. (See FIG. 2 of Patent Document).

このように特許文献２の二軸剪断式破砕機では、各切断刃と刃物取付台に階段状の段差部を形成して各切断刃を刃物取付台に位置決めした状態でボルトに各切断刃を固定している。しかし、このような段差部による位置決めは各切断刃の周方向の位置決めのみで各切断刃の幅方向の位置決めが成されていないため、各切断刃の組み付け時において各切断刃を手で抑えながらボルト止めする必要がある。このため、本願出願人は組み付け時の各切断刃を組み付け作業性の簡略化し、組み付け後においても、分割した複数の各切断刃を安定的に刃物取付台に固定するために、図１４〜図１６で示す改良型の二軸剪断式破砕機を開発した。   As described above, in the biaxial shearing type crusher of Patent Document 2, each cutting blade is formed on the bolt in a state in which each cutting blade and the blade mounting base are formed with stepped step portions and each cutting blade is positioned on the blade mounting base. It is fixed. However, since positioning by such a stepped portion is only positioning in the circumferential direction of each cutting blade and not in the width direction of each cutting blade, while holding each cutting blade by hand, Need to be bolted. For this reason, the applicant of the present application simplifies the assembly workability of each cutting blade during assembly, and even after assembly, in order to stably fix each of the plurality of divided cutting blades to the blade mounting base, FIG. An improved biaxial shear crusher indicated by 16 was developed.

そこでまず、この本願出願人が開発した改良型の二軸剪断式破砕機における回転刃１１０の具体的構造について、図１４〜図１６を参照して説明する。
この改良型の二軸剪断式破砕機の回転刃１１０は、分割した複数の各切断刃１１１で構成され、この切断刃１１１を固定する刃物取付台１１２と、その各切断刃１１１によって構成される回転刃１１０の間隔を保持するためのスペーサ１０２とを軸方向に交互に並設させて駆動軸１００に取り付けられている。この回転刃１１０を構成する複数の各切断刃１１１は、刃物取付台１１２にボルト１１３によって着脱自在に固定され、前記刃物取付台１１２を隣接するスペーサ１０２と密着するようにして駆動軸１００に取付けることによって、このスペーサ１０２で各切断刃１１１の位置決めと剪断時の横方向（駆動軸方向）の荷重を支持している。 First, a specific structure of the rotary blade 110 in the improved biaxial shearing crusher developed by the applicant will be described with reference to FIGS.
The rotary blade 110 of this improved biaxial shearing crusher is composed of a plurality of divided cutting blades 111, a blade mounting base 112 for fixing the cutting blade 111, and the cutting blades 111. Spacers 102 for maintaining the interval between the rotary blades 110 are alternately mounted in parallel in the axial direction and attached to the drive shaft 100. A plurality of cutting blades 111 constituting the rotary blade 110 are detachably fixed to a blade mounting base 112 by bolts 113, and the blade mounting base 112 is attached to the drive shaft 100 so as to be in close contact with the adjacent spacer 102. Thus, the spacer 102 supports the load in the lateral direction (drive shaft direction) during positioning and shearing of each cutting blade 111.

そして、この改良型の二軸剪断式破砕機では、刃物取付台１１２の各刃物取付面に段部１２５を突設し、各切断刃１１１の裏面に段部１２５と嵌合する陥没状の凹部１２６を形成し、刃物取付台１１２に各切断刃１１１を組み付ける際に、刃物取付台１１２に形成する段部１２５に各切断刃１１１の裏面に形成する段部１２５を嵌合させることによって、刃物取付台１１２に対して６枚の切断刃１１１を周方向及び幅方向に位置決めするように構成している。このように、刃物取付台１１２の段部１２５と各切断刃１１１の凹部１２６とを嵌合させることによって、従来は、刃物取付台１１２に対して周方向しか位置決めできなかったが、改良型の切断刃１１１では、周方向のみならず幅方向にも位置決めできるため、組み付け時において刃物取付台１１２に対して各切断刃１１１を正確に位置決めでき、切断刃１１１を抑えながらボルト止めするといった煩わしい手間がかからず、切断刃１１１の位置決め効果に優れた構造とすることができる。   And in this improved type biaxial shearing type crusher, a stepped portion 125 is projected from each blade mounting surface of the blade mounting base 112, and a recessed portion that fits with the stepped portion 125 on the back surface of each cutting blade 111. 126, and when assembling each cutting blade 111 to the blade mounting base 112, the step 125 formed on the back surface of each cutting blade 111 is fitted to the step 125 formed on the blade mounting base 112. Six cutting blades 111 are configured to be positioned in the circumferential direction and the width direction with respect to the mounting base 112. Thus, by fitting the step 125 of the blade mounting base 112 and the concave portion 126 of each cutting blade 111, conventionally, only the circumferential direction could be positioned with respect to the blade mounting base 112. Since the cutting blade 111 can be positioned not only in the circumferential direction but also in the width direction, each cutting blade 111 can be accurately positioned with respect to the blade mounting base 112 during assembly, and the troublesome work of bolting while holding down the cutting blade 111 is achieved. Therefore, a structure excellent in the positioning effect of the cutting blade 111 can be obtained.

このように、特許文献２に開示されたような、周方向に分割した複数の切断刃１１１で回転刃１１０を構成する二軸剪断式破砕機では、回転刃１１０を構成する切断刃１１１が磨耗あるいは破損した場合、駆動軸１００を取り外すことなく、磨耗あるいは破損した切断刃１１１のみを交換することができるものである。このため、図１２、図１３に示す一体構造の回転刃１０１に比べて回転刃１１０の交換作業が容易であるとともにメンテナンス作業も簡略化される、という利点を有している。さらに、図１４乃至図１６に示す本願出願人の改良型の二軸剪断式破砕機では、刃物取付台１１２の段部１２５と、各切断刃１１１の凹部１２６とを嵌合させることによって、さらに、組み付け時において刃物取付台１１２に対して各切断刃１１１を正確に位置決めでき、切断刃１１１を抑えながらボルト止めするといった煩わしい手間がかからず、切断刃１１１の位置決め効果に優れる、という利点を有していた。   As described above, in the biaxial shearing type crusher in which the rotary blade 110 is constituted by the plurality of cutting blades 111 divided in the circumferential direction as disclosed in Patent Document 2, the cutting blade 111 constituting the rotary blade 110 is worn. Or when it is damaged, only the worn or damaged cutting blade 111 can be replaced without removing the drive shaft 100. For this reason, compared with the integrally structured rotating blade 101 shown in FIGS. 12 and 13, there is an advantage that the replacing operation of the rotating blade 110 is easy and the maintenance operation is simplified. Further, in the improved two-axis shearing crusher of the applicant of the present invention shown in FIGS. 14 to 16, the step 125 of the blade mounting base 112 and the recess 126 of each cutting blade 111 are further fitted to each other. The cutting blade 111 can be accurately positioned with respect to the blade mounting base 112 at the time of assembly, and the trouble of troublesome bolting while suppressing the cutting blade 111 is not required, and the positioning blade 111 has an excellent positioning effect. Had.

特開２００３−２９９９７８号公報JP 2003-299978 A 特開２００４−６６２２６号公報JP 2004-66226 A

ところで、複数の切断刃１１１で構成した回転刃１１０を備えた二軸剪断式破砕機においては、分割した複数の切断刃１１１を駆動軸１００に固定するための刃物取付台１１２を駆動軸１００に設ける必要がある。このため、特許文献２に示す二軸剪断式破砕機及び本願出願人の改良型二軸剪断式破砕機は、図１４〜図１６にも示すように、刃物取付台１１２を設け、この刃物取付台１１２を駆動軸１００に貫通させて駆動軸１００に対して回り止め状態で固定している。そして、図１５及び図１６に示すように、駆動軸１００に固定された刃物取付台１１２にボルト１１３を用いて各切断刃１１１を着脱自在に固定している。また、刃物取付台１１２は、各切断刃１１１を安定的に取り付けるために刃物取付台１１２の外周面を平面状の刃物取付面１１２ａに形成している。すなわち、刃物取付台１１２の全体形状は、分割した切断刃１１１の枚数に応じた多角形型であり、図１４〜図１６においては、六枚に分割した切断刃１１１を刃物取付台１１２に固定している。   By the way, in the biaxial shearing type crusher provided with the rotary blade 110 constituted by a plurality of cutting blades 111, a blade mounting base 112 for fixing the plurality of divided cutting blades 111 to the drive shaft 100 is provided on the drive shaft 100. It is necessary to provide it. For this reason, the biaxial shearing crusher shown in Patent Document 2 and the improved biaxial shearing crusher of the applicant of the present application are provided with a cutter mounting base 112 as shown in FIGS. The base 112 is passed through the drive shaft 100 and fixed to the drive shaft 100 in a non-rotating state. Then, as shown in FIGS. 15 and 16, each cutting blade 111 is detachably fixed to the blade mounting base 112 fixed to the drive shaft 100 using a bolt 113. In addition, the blade mounting base 112 forms the outer peripheral surface of the blade mounting base 112 on a flat blade mounting surface 112a in order to mount each cutting blade 111 stably. That is, the overall shape of the blade mounting base 112 is a polygonal shape corresponding to the number of divided cutting blades 111. In FIGS. 14 to 16, the cutting blade 111 divided into six pieces is fixed to the blade mounting base 112. doing.

このことから、刃物取付台１１２は、外周面に６面の刃物取付面１１２ａを有する断面六角形となる。そして、切断刃１１１の周方向（回転方向）の切断力を受けるためには、刃物取付面１１２ａの外周面に各々角部Ａを形成する必要がある。他方、軸方向に位置する２枚の切断刃１１１間に配置されるスペーサ１０２は、外周面が円形に形成されている。このため、スペーサ１０２の外径が刃物取付台１１２より小径である場合には、図１６において斜線部で示すように、スペーサ１０２の外周から刃物取付台１１２の各頂点角部Ａが突出して外部に飛び出してしまう。   From this, the blade mounting base 112 has a hexagonal cross section having six blade mounting surfaces 112a on the outer peripheral surface. And in order to receive the cutting force of the circumferential direction (rotation direction) of the cutting blade 111, it is necessary to form the corner | angular part A in the outer peripheral surface of the cutter attachment surface 112a, respectively. On the other hand, the spacer 102 disposed between the two cutting blades 111 positioned in the axial direction has a circular outer peripheral surface. For this reason, when the outer diameter of the spacer 102 is smaller than the cutter mounting base 112, each vertex corner A of the cutter mounting base 112 protrudes from the outer periphery of the spacer 102 as shown by the hatched portion in FIG. I will jump out.

このため、改良型の二軸剪断式破砕機においても、複数の切断刃１１１から成る回転刃１１０によって被破砕物を破砕処理する際、スペーサ１０２より外周に突出した刃物取付台１１２の各頂点角部Ａが磨耗し、刃物取付台１１２の交換が必要となることがある。その場合に、刃物取付台１１２を取り替えるには、図１５で示すように、ケーシングから軸受をばらして駆動軸１００を取り外した後、駆動軸１００からスペーサ１０２と刃物取付台１１２を引き抜く必要があり、煩雑で手間のかかる作業を強いられることになる。   For this reason, even in the improved biaxial shearing crusher, when crushing the object to be crushed by the rotary blade 110 composed of a plurality of cutting blades 111, each vertex angle of the blade mounting base 112 protruding to the outer periphery from the spacer 102 Part A may be worn out, and the blade mount 112 may need to be replaced. In that case, in order to replace the blade mounting base 112, as shown in FIG. 15, it is necessary to pull out the spacer 102 and the blade mounting base 112 from the driving shaft 100 after separating the bearing from the casing and removing the driving shaft 100. This is a complicated and time-consuming task.

このように、図１４〜図１６においては、刃物取付台１１２として駆動軸１００とは別体で製造し、刃物取付台１１２を駆動軸１００に対して回り止め状態で固定しているが、駆動軸に刃物取付台とスペーサを一体的に形成する構造も知られているが、このように駆動軸に刃物取付台とスペーサを一体的に形成する二軸剪断式破砕機の構造にあっては、刃物取付台の磨耗によって駆動軸自体を交換する必要があり、ランニングコストの上昇を招くものである。   14 to 16, the blade mounting base 112 is manufactured separately from the drive shaft 100, and the blade mounting base 112 is fixed to the drive shaft 100 in a non-rotating state. A structure in which the blade mounting base and the spacer are integrally formed on the shaft is also known. However, in the structure of the biaxial shearing type crusher in which the blade mounting base and the spacer are integrally formed on the drive shaft in this way, Further, it is necessary to replace the drive shaft itself due to wear of the blade mounting base, resulting in an increase in running cost.

また従来は、切断刃１１１を、刃物取付台１１２に対して複数本のボルト１１３のみを用いて固定しており、そのボルト１１３は刃物取付面１１２ａに対して垂直方向にのみ締め付ける構造であった。このため、破砕時において各ボルト１１３に周方向（回転方向）及び横方向（駆動軸方向）の荷重が加わると、その荷重によってボルト１１３の変形あるいは破損などの虞れもあり、切断刃１１１の取付強度も低下してしまう、という懸念もあった。そこで、改良型の二軸剪断式破砕機においては、図１４乃至図１６に示すように、刃物取付台１１２に段部１２５を形成し、それに各切断刃１１１の凹部１２６を嵌合させることによって、組み付け時において刃物取付台１１２に対して各切断刃１１１を正確に位置決めでき、さらに分割した切断刃１１１を固定する手段としてボルト１１３を用いている。   Conventionally, the cutting blade 111 is fixed to the blade mounting base 112 using only a plurality of bolts 113, and the bolts 113 are tightened only in the vertical direction with respect to the blade mounting surface 112a. . For this reason, when a load in the circumferential direction (rotation direction) and the lateral direction (drive shaft direction) is applied to each bolt 113 during crushing, there is a risk of deformation or breakage of the bolt 113 due to the load. There was also a concern that the mounting strength would also decrease. Therefore, in the improved biaxial shearing crusher, as shown in FIGS. 14 to 16, a step 125 is formed on the blade mounting base 112, and the recess 126 of each cutting blade 111 is fitted to the step 125. The cutting blades 111 can be accurately positioned with respect to the blade mounting base 112 at the time of assembly, and bolts 113 are used as means for fixing the divided cutting blades 111.

さらに、隣接する回転刃１１０の間隔を保持するスペーサ１０２として、図１４乃至図１６などで示すように、駆動軸１００に対してスペーサ１０２を回り止め状態で取り付けるために、スペーサ１０２を装着する駆動軸１００の取付部分において断面多角形（図１５、図１６においては六角形）の係合部１００ａを形成するとともに、スペーサ１０２に前記係合部１００ａと嵌合する多角形状の取付孔１０２ａを形成し、係合部１００ａとの取付孔１０２ａとの圧入嵌合によって駆動軸１００に対してスペーサ１０２を回り止めする構造が一般的である。 Further, as shown in FIG. 14 to FIG. 16 and the like, as a spacer 102 for maintaining the interval between the adjacent rotary blades 110, a drive for mounting the spacer 102 to attach the spacer 102 to the drive shaft 100 in a non-rotating state. An engaging portion 100a having a polygonal cross section (hexagonal in FIGS. 15 and 16) is formed in the attaching portion of the shaft 100, and a polygonal attaching hole 102a that fits the engaging portion 100a is formed in the spacer 102. In general, the spacer 102 is prevented from rotating with respect to the drive shaft 100 by press-fitting between the engaging portion 100a and the mounting hole 102a.

このため、破砕時において係合部１００ａと取付孔１０２ａの各頂点角部ｂ（図１６参照）に回転刃１１０の回転時に加わる荷重が集中し、スペーサ１０２の各頂点角部ｂが磨耗してスペーサ１０２の交換も必要となる。この場合、スペーサ１０２がリング状であるため、その交換にはケーシングから軸受を分解して駆動軸１００を取り外してからスペーサ１０２を引き抜くといった極めて煩雑で手間のかかる作業が必要となる、という課題を有していた。そこで、改良型の二軸剪断式破砕機においては、図１５に示すように、駆動軸１００の取付部分における係合部１００ａを面取り１００ｂの構成とした。   For this reason, during crushing, the load applied when the rotary blade 110 is rotated concentrates on each vertex corner b (see FIG. 16) of the engaging portion 100a and the mounting hole 102a, and each vertex corner b of the spacer 102 is worn. Replacement of the spacer 102 is also necessary. In this case, since the spacer 102 has a ring shape, the replacement requires a very complicated and troublesome work such as disassembling the bearing from the casing and removing the drive shaft 100 and then pulling out the spacer 102. Had. Therefore, in the improved biaxial shearing crusher, as shown in FIG. 15, the engaging portion 100a in the mounting portion of the drive shaft 100 has a chamfered 100b configuration.

本発明は、上記課題に鑑み、分割した複数の切断刃で回転刃を構成する剪断式破砕機、特に、二軸剪断式破砕機において、各切断刃を固定する刃物取付台の磨耗を効果的に抑えることができる剪断式破砕機、特に、二軸剪断式破砕機、及びその回転刃を提供することを第一の目的とする。
また、分割した切断刃を固定するボルトや回転刃の間隔を保持するスペーサに加わる荷重によるボルトの変形やスペーサの磨耗を抑えることができる剪断式破砕機、特に、二軸剪断式破砕機、及びその回転刃を提供することを第二の目的とする。 In view of the above problems, the present invention is effective in the wear of a blade mounting base for fixing each cutting blade in a shearing crusher that forms a rotary blade with a plurality of divided cutting blades, particularly a biaxial shearing crusher. It is a first object to provide a shearing type crusher that can be suppressed to a low level, in particular, a biaxial shearing type crusher, and a rotary blade thereof.
Further, a shearing crusher that can suppress deformation of the bolt and wear of the spacer due to a load applied to the spacer that holds the interval between the bolt and the rotary blade that fixes the divided cutting blade, and in particular, a biaxial shearing crusher, and A second object is to provide the rotary blade.

本発明の剪断式破砕機は、ケーシング内に軸受を介して回転可能に軸支された駆動軸と、この駆動軸上にスペーサを挟んで交互に配置される回転刃を備え、この回転刃を回転させてケーシング内体内に供給した被破砕物を前記回転刃で破砕して排出するように構成した二軸剪断式破砕機において、周方向に分割した複数個の切断刃で前記回転刃を構成し、前記スペーサを介して前記駆動軸に前記各切断刃を着脱自在に取り付ける複数の刃物取付台を軸方向に並設させ、この各刃物取付台の側面を前記スペーサで覆うように前記スペーサの外周を前記刃物取付台の外周縁より大径としたことを特徴とする。   The shear crusher of the present invention includes a drive shaft rotatably supported in a casing via a bearing and rotary blades arranged alternately on the drive shaft with a spacer interposed therebetween. In the biaxial shearing type crusher configured to crush and discharge the object to be crushed and supplied to the inside of the casing with the rotary blade, the rotary blade is constituted by a plurality of cutting blades divided in the circumferential direction And a plurality of blade mounting bases that detachably attach the cutting blades to the drive shaft via the spacers in the axial direction, and the side surfaces of the blade mounting bases are covered with the spacers. The outer periphery has a larger diameter than the outer peripheral edge of the blade mounting base.

さらに、本発明の剪断式破砕機は、前記駆動軸を平行する一対の駆動軸とし、この各駆動軸上にスペーサを挟んで交互に配置される回転刃を備え、この回転刃を互いに逆方向に回転させてケーシング内体内に供給した被破砕物を前記回転刃で巻き込むように破砕して排出するように構成したことを特徴とする。   Furthermore, the shear crusher of the present invention includes a pair of drive shafts parallel to the drive shaft, and includes rotary blades arranged alternately on each drive shaft with a spacer interposed therebetween, and the rotary blades are arranged in opposite directions. The object to be crushed after being rotated and supplied to the inside of the casing is crushed so as to be rolled up by the rotary blade and discharged.

また、本発明の剪断式破砕機は、前記刃物取付台の外周面に前記切断刃の枚数に応じた平板状の刃物取付面を形成して前記刃物取付台を多角形型とし、その刃物取付台の頂点角部と接する仮想外接円より前記スペーサの外径を大径としたことを特徴とする。   Further, the shearing type crusher of the present invention forms a flat blade attachment surface corresponding to the number of the cutting blades on the outer peripheral surface of the blade attachment base so that the blade attachment base has a polygonal shape. The outer diameter of the spacer is larger than the virtual circumscribed circle in contact with the apex corner of the table.

また、本発明の剪断式破砕機は、前記切断刃はボルトにより前記刃物取付台に着脱自在に固定され、かつ、周方向に隣接する切断刃同士をボルトによって連結したことを特徴とする。   The shearing crusher of the present invention is characterized in that the cutting blade is detachably fixed to the blade mounting base by a bolt, and the cutting blades adjacent in the circumferential direction are connected by a bolt.

また、本発明の剪断式破砕機は、前記スペーサを複数に分割して前記駆動軸に装着したことを特徴とする。   The shearing crusher of the present invention is characterized in that the spacer is divided into a plurality of parts and attached to the drive shaft.

また、本発明の剪断式破砕機は、前記刃物取付台の側面から各切断刃を僅かにはみ出すように突出させて刃物取付台に固定することによって刃物取付台と各切断刃との間において刃物取付台で囲まれた段差凹部を形成するとともに、スペーサの側面に前記段差凹部と嵌合する段差突部を形成して、この段差凹部と段差突部とを係合し、かつ、刃物取付台の側面をスペーサの側面に押圧させることによってスペーサを周方向に位置決めしたことを特徴とする。   Further, the shearing type crusher of the present invention is configured such that each cutting blade protrudes slightly from the side surface of the blade mounting base and is fixed to the blade mounting base to fix the blade between the blade mounting base and each cutting blade. A step recess surrounded by the mounting base is formed, and a step protrusion is formed on the side surface of the spacer to be engaged with the step recess. The step recess and the step protrusion are engaged, and the blade mounting base The spacer is positioned in the circumferential direction by pressing the side surface of the spacer against the side surface of the spacer.

本発明の剪断式破砕機用回転刃は、剪断式破砕機に用いる回転刃であって、当該回転刃は周方向に分割した複数個の切断刃で構成され、当該複数個の切断刃は夫々がボルトによって刃物取付台に着脱自在に固定され、かつ、周方向に隣接する切断刃同士をボルトによって連結して一体化したことを特徴とする。   The rotary blade for a shear type crusher of the present invention is a rotary blade used in a shear type crusher, and the rotary blade is composed of a plurality of cutting blades divided in the circumferential direction, and each of the plurality of cutting blades is Is detachably fixed to the blade mounting base by a bolt, and cutting blades adjacent in the circumferential direction are connected and integrated by a bolt.

本発明の剪断式破砕機によれば、刃物取付台の両側面はスペーサによって覆われ外部に露出しない。これにより、破砕時において刃物取付台の磨耗を可及的に抑えることができ、刃物取付台の交換時期を大幅に延ばすことができる。   According to the shear crusher of the present invention, both side surfaces of the blade mounting base are covered with the spacers and are not exposed to the outside. Thereby, at the time of crushing, wear of the blade mount can be suppressed as much as possible, and the replacement time of the blade mount can be greatly extended.

また、本発明の剪断式破砕機によれば、スペーサを複数に分割しているため、スペーサの交換に際し、駆動軸を分解してからスペーサを抜き取るといった煩わしい手間の必要ないので極めて簡単にスペーサを交換することができる。   Further, according to the shearing type crusher of the present invention, since the spacer is divided into a plurality of parts, there is no need for troublesome work such as disassembling the drive shaft after removing the spacer, so that the spacer can be removed very easily. Can be exchanged.

また、本発明の剪断式破砕機及びそれに用いる回転刃によれば、刃物取付台にボルト止めする各切断刃は、周方向に隣接する切断刃同士がボルトによって連結され、単に刃物取付台に各切断刃をボルト止めした構造に比べ破砕時において各ボルトに加わる荷重を低減でき、ボルトの破損や変形を抑制することができる。   Further, according to the shearing type crusher of the present invention and the rotary blade used therefor, each cutting blade to be bolted to the blade mounting base is connected to each other by a bolt between the cutting blades adjacent in the circumferential direction. Compared with the structure in which the cutting blade is bolted, the load applied to each bolt at the time of crushing can be reduced, and the breakage and deformation of the bolt can be suppressed.

また、本発明の剪断式破砕機によれば、スペーサは駆動軸に対して廻り止め状態で装着することなく、刃物取付台で囲まれた段差凹部と、スペーサに形成する段差突部との係合及び刃物取付台の側面をスペーサの側面に押圧させることによって刃物取付台に対して周方向の位置決めを成しており、破砕時において周方向に加わる荷重によってスペーサに回転トルクが加わったとして、駆動軸に対してスペーサの回転は許容される構造であるため、スペーサの磨耗も抑制することができる。   Further, according to the shear crusher of the present invention, the spacer is not attached to the drive shaft in a non-rotating state, and the relationship between the stepped recess surrounded by the blade mounting base and the stepped protrusion formed on the spacer. And the circumferential direction of the blade mounting base is made by pressing the side surface of the blade mounting base against the side surface of the spacer, and the rotational torque is applied to the spacer by the load applied in the circumferential direction during crushing. Since the spacer is allowed to rotate with respect to the drive shaft, wear of the spacer can also be suppressed.

本発明の実施例１としての二軸剪断式破砕機の切断刃が噛み合った状態を示す駆動軸に直交方向の断面図である。It is sectional drawing of a direction orthogonal to the drive shaft which shows the state which the cutting blade of the biaxial shearing type crusher as Example 1 of this invention meshed | engaged. 本発明の実施例１としての二軸剪断式破砕機の切断刃の詳細を示す図であり、図２（ａ）は平面図、図２（ｂ）は正面図である。It is a figure which shows the detail of the cutting blade of the biaxial shearing crusher as Example 1 of this invention, Fig.2 (a) is a top view, FIG.2 (b) is a front view. 本発明の実施例１としての二軸剪断式破砕機の取付台の詳細を示す図であり、図３（ａ）は正面図、図２（ｂ）は平面図である。It is a figure which shows the detail of the mounting base of the biaxial shearing crusher as Example 1 of this invention, Fig.3 (a) is a front view, FIG.2 (b) is a top view. 本発明の実施例１としての二軸剪断式破砕機のスペーサの詳細を示す図であり、図４（ａ）はスペーサを分割した正面図、図４（ｂ）は平面図である。It is a figure which shows the detail of the spacer of the biaxial shearing crusher as Example 1 of this invention, Fig.4 (a) is the front view which divided | segmented the spacer, FIG.4 (b) is a top view. 本発明の実施例１としての二軸剪断式破砕機の取付台に対して、一部切断刃を取付けた状態を示す図である。It is a figure which shows the state which attached the partial cutting blade with respect to the attachment stand of the biaxial shearing crusher as Example 1 of this invention. 本発明の実施例１としての二軸剪断式破砕機の駆動軸に対して、刃取付台、スペーサー及び切断刃を取付ける状態を示し、図６（ａ）は正面図、図６（ｂ）は切断刃の分解斜視図である。The state which attaches a blade mounting base, a spacer, and a cutting blade with respect to the drive shaft of the biaxial shear-type crusher as Example 1 of this invention is shown, FIG. 6 (a) is a front view, FIG.6 (b) is FIG. It is a disassembled perspective view of a cutting blade. 本発明の実施例１としての二軸剪断式破砕機の切断刃の駆動軸に沿った方向の断面図である。It is sectional drawing of the direction along the drive shaft of the cutting blade of the biaxial shearing type crusher as Example 1 of this invention. 本発明の実施例１としての二軸剪断式破砕機の切断刃の分解斜視図である。It is a disassembled perspective view of the cutting blade of the biaxial shearing type crusher as Example 1 of this invention. 本発明の実施例１としての二軸剪断式破砕機の切断刃に加えスペーサも分解した状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which also decomposed | disassembled the spacer in addition to the cutting blade of the biaxial shearing type crusher as Example 1 of this invention. 本発明の実施例２としての二軸剪断式破砕機の切断刃が噛み合った状態を示す駆動軸に直交方向の断面図である。It is sectional drawing of a direction orthogonal to the drive shaft which shows the state which the cutting blade of the biaxial shearing type crusher as Example 2 of this invention meshed | engaged. 本発明の実施例２としての二軸剪断式破砕機の切断刃の駆動軸に沿った方向の断面図である。It is sectional drawing of the direction along the drive shaft of the cutting blade of the biaxial shearing type crusher as Example 2 of this invention. 従来の二軸剪断式破砕機の一体型切断刃の組み付け状態を示す斜視図である。It is a perspective view which shows the assembly | attachment state of the integrated cutting blade of the conventional biaxial shearing crusher. 従来の二軸剪断式破砕機の一体型切断刃の分解斜視図である。It is a disassembled perspective view of the integrated cutting blade of the conventional biaxial shearing type crusher. 改良型の二軸剪断式破砕機の分割型切断刃の組み付け状態を示す斜視図である。It is a perspective view which shows the assembly | attachment state of the division | segmentation type cutting blade of an improved type biaxial shearing crusher. 改良型の二軸剪断式破砕機の分割型切断刃の組み付け状態を示す分解斜視図である。It is a disassembled perspective view which shows the assembly | attachment state of the split-type cutting blade of an improved type biaxial shearing crusher. 改良型の二軸剪断式破砕機の分割型切断刃の噛み合った状態を示す断面図である。It is sectional drawing which shows the state which the division | segmentation type cutting blade of the improved type biaxial shearing crusher engaged.

以下、本発明の詳細について添付図面を参照して説明する。本発明の実施例としての剪断式破砕機は、以下に説明する改良された構造の回転刃を備えているものであり、発明としては必ずしも一対の回転刃を備えた二軸剪断式破砕機に限定されるものではない。しかし、最も好ましい実施例としては二軸剪断式破砕機があるので、以下の説明においては、二軸剪断式破砕機を実施例として本発明の技術的思想を説明する。実施例の二軸剪断式破砕機は、被破砕物投入口からケーシング内に供給した被破砕物を互いに逆方向に回転する回転刃で相互に巻き込むようにしてその剪断作用で被破砕物を破砕し、細かく破砕された破砕物を破砕物排出口より排出するように構成した二軸剪断式破砕機であり、破砕対象物は、特に限定されるものではないが、ペットボトル、ビニールシート、廃タイヤ、木材、廃家電、その他の産業廃棄物などの固体廃棄物を破砕するのに適した構造である。   Hereinafter, details of the present invention will be described with reference to the accompanying drawings. A shearing type crusher as an embodiment of the present invention includes a rotary blade having an improved structure described below, and the invention is not necessarily limited to a biaxial shearing type crusher provided with a pair of rotary blades. It is not limited. However, since the most preferred embodiment is a biaxial shearing type crusher, the technical idea of the present invention will be described in the following description using the biaxial shearing type crusher as an example. The biaxial shear type crusher of the embodiment crushes the crushed object by the shearing action so that the crushed object supplied into the casing from the crushed object inlet is mutually wound by rotating blades rotating in opposite directions. The crushing material is a biaxial shearing type crusher configured to discharge the finely crushed crushed material from the crushed material discharge port, and the object to be crushed is not particularly limited. This structure is suitable for crushing solid waste such as tires, wood, waste home appliances, and other industrial waste.

図１〜図９は、本発明の実施例１としての二軸剪断式破砕機を示し、図１においては、二軸剪断式破砕機の一対の切断刃が噛み合った状態を示しており、１，１はケーシング（図示しない）に支持された一対の駆動軸であり、各駆動軸１，１は図示しない電動機によってそれぞれ内方（被破砕物を噛み込む方向）に向かって相互に逆回転し、各駆動軸１，１に取り付けた回転刃５の剪断作用によって被破砕物を破砕する。   1 to 9 show a biaxial shearing crusher as Example 1 of the present invention, and in FIG. 1, a pair of cutting blades of a biaxial shearing crusher are engaged with each other. , 1 is a pair of drive shafts supported by a casing (not shown), and the drive shafts 1 and 1 are rotated in reverse directions toward the inside (the direction in which the object to be crushed is bitten) by an electric motor (not shown). The material to be crushed is crushed by the shearing action of the rotary blade 5 attached to each drive shaft 1, 1.

駆動軸１に取り付ける個々の回転刃５，５は、周方向に分割した複数の切断刃６，６，・・・によって構成され、本実施例においては、６枚の切断刃６，６，・・・が駆動軸１の周方向に連続して一体的に継ぎ合わされた状態で固定されている。また、各駆動軸１には軸線方向に隣接する回転刃５（継ぎ合わされた６枚の切断刃６の組立体）同志が所定の間隔を保持するためのスペーサ１１が外装されている。   The individual rotary blades 5 and 5 attached to the drive shaft 1 are constituted by a plurality of cutting blades 6, 6,... Divided in the circumferential direction, and in this embodiment, six cutting blades 6, 6,. .. Are fixed in a state where they are continuously joined together in the circumferential direction of the drive shaft 1. Each drive shaft 1 is covered with a spacer 11 for maintaining a predetermined distance between the rotary blades 5 (an assembly of six cutting blades 6 joined together) adjacent to each other in the axial direction.

図１に示すように、前記駆動軸１には、各切断刃６を固定するための刃物取付台２０（図３）が装着されている。本実施例の刃物取付台２０では、刃物取付台２０の外面に６枚の切断刃６，６・・を取り付けるために、同数（６面）の平板状の刃物取付面２１を形成している。これにより、図３に示すように、
本実施例における刃物取付台２０は、外面に６面の刃物取付面２１を有する六角形型となる。また、前記刃物取付台２０は、駆動軸１と別体で形成され、刃物取付台２０の六角形の内周面に形成された取付孔２２を駆動軸１に圧入することによって、駆動軸１に対して刃物取付台２０が装着される。この時、駆動軸１に対して刃物取付台２０を回り止め状態で装着するため、駆動軸１における刃物取付台２０の取付け部分においては、駆動軸１に軸方向に延びる断面六面形状の係合部２が形成されており、前記刃物取付台２０の内周面には、夫々六面形状の取付孔２２が形成されている。この取付孔２２と係合部２との係合によって、駆動軸１に対して刃物取付台２０が回り止め状態で装着されている。 As shown in FIG. 1, the drive shaft 1 is equipped with a blade mounting base 20 (FIG. 3) for fixing each cutting blade 6. In the blade mounting base 20 of the present embodiment, the same number (six surfaces) of flat blade mounting surfaces 21 are formed in order to mount the six cutting blades 6,... On the outer surface of the blade mounting base 20. . As a result, as shown in FIG.
The blade mounting base 20 in this embodiment is a hexagonal shape having six blade mounting surfaces 21 on the outer surface. Further, the blade mounting base 20 is formed separately from the drive shaft 1, and the drive shaft 1 is formed by press-fitting the mounting hole 22 formed in the hexagonal inner peripheral surface of the blade mounting base 20 into the drive shaft 1. On the other hand, the blade mounting base 20 is mounted. At this time, since the blade mounting base 20 is attached to the drive shaft 1 in a non-rotating state, the attachment portion of the blade mounting base 20 on the drive shaft 1 has a six-plane cross section extending in the axial direction on the drive shaft 1. A joint portion 2 is formed, and hexagonal mounting holes 22 are formed on the inner peripheral surface of the blade mounting base 20, respectively. Due to the engagement between the attachment hole 22 and the engagement portion 2, the blade attachment base 20 is attached to the drive shaft 1 in a non-rotating state.

また、図３、図７及び図８に示すように、刃物取付台２０に対して各切断刃６を位置決めするために、刃物取付台２０の各刃物取付面２１にはそれぞれ段部２５が突設され、各切断刃６の裏面には、段部２５と嵌合する凹部２６が夫々形成（図２）されている。そして、各刃物取付面２１の段部２５に対して切断刃６の凹部２６を夫々嵌め入れて刃物取付台２０に対して６枚の切断刃６を周方向（回転方向）及び幅方向（軸線方向）に位置決めする。   Further, as shown in FIGS. 3, 7, and 8, in order to position each cutting blade 6 with respect to the blade mounting base 20, a step portion 25 protrudes from each blade mounting surface 21 of the blade mounting base 20. A recess 26 is formed on the back surface of each cutting blade 6 so as to be fitted to the step portion 25 (FIG. 2). And the recessed part 26 of the cutting blade 6 is each inserted in the step part 25 of each cutter attachment surface 21, and the six cutting blades 6 with respect to the cutter attachment stand 20 are made into the circumferential direction (rotation direction) and the width direction (axis line). Direction).

刃物取付台２０の各刃物取付面２１に形成された段部２５は、その回転方向前方（図３の矢印方向で前方）に略垂直の立上り面２８を形成し、回転方向後方（図３の矢印方向で後方）には、後続する刃物取付面２１に繋がる傾斜面２９を形成している。これにより、各刃物取付面２１の段部２５に対して各切断刃６の凹部２６が嵌め込まれると、各段部２５の立上り面２８が切断刃６に作用する破砕反力を受けるので、その破砕反力が直接ボルト３０，３０に作用することはない。この段部２５の立上り面２８は、図３に示されているように、台形形状を呈することにより、各切断刃６を刃物取付台２０に対して所定の位置に取り付けることができる。   The step portion 25 formed on each blade mounting surface 21 of the blade mounting base 20 forms a substantially vertical rising surface 28 in the front in the rotational direction (forward in the direction of the arrow in FIG. 3), and the rear in the rotational direction (in FIG. 3). On the rear side in the direction of the arrow, an inclined surface 29 connected to the subsequent blade mounting surface 21 is formed. As a result, when the recess 26 of each cutting blade 6 is fitted into the step portion 25 of each blade attachment surface 21, the rising surface 28 of each step portion 25 receives a crushing reaction force acting on the cutting blade 6. The crushing reaction force does not directly act on the bolts 30 and 30. As shown in FIG. 3, the rising surface 28 of the step portion 25 has a trapezoidal shape, so that each cutting blade 6 can be attached to the tool mounting base 20 at a predetermined position.

また、各切断刃６が刃物取付面２１に取り付けられると、各切断刃６の回転方向後方面６９（図３の矢印方向で後方面）は、刃物取付台２０に対して略垂直となるように構成されている。この切断刃６の回転方向後方面６９に対して、それに連なる後方の切断刃６の回転方向前方面６８が接触する。破砕時に切断刃６に作用する破砕反力は、切断刃６の切断刃部６１において、略回転運動の接線方向に作用する。従って、連続する切断刃６，６を繋げるボルト３１に対して剪断力として作用する分力を比較的小さくできる。   Further, when each cutting blade 6 is attached to the blade mounting surface 21, the rear surface 69 in the rotational direction of each cutting blade 6 (the rear surface in the direction of the arrow in FIG. 3) is substantially perpendicular to the blade mounting base 20. It is configured. The rotational direction front surface 68 of the rear cutting blade 6 connected to the rear surface 69 in the rotational direction of the cutting blade 6 is in contact with the rear surface 69. The crushing reaction force acting on the cutting blade 6 during crushing acts on the cutting blade portion 61 of the cutting blade 6 in the tangential direction of the substantially rotational movement. Accordingly, the component force acting as a shearing force on the bolt 31 connecting the continuous cutting blades 6 and 6 can be made relatively small.

各切断刃６には、図２に示すように、後述するボルトを貫通する貫通孔６ａとボルトを螺着をねじ孔６ｂが形成され、刃物取付台２０に切断刃６を位置決めした状態で各切断刃６の貫通孔６ａに貫通させたボルト３０を刃物取付台２０に形成する螺子孔２０ａ（図３）に螺着することによって、刃物取付台２０の刃物取付面２１に対して切断刃６をボルト止めする。本発明の実施例においては、さらに、図１及び図５に示すように、周方向（回転方向）に隣接する一方の切断刃６に形成された貫通孔６ａから、一本のボルト３１を貫通させて、隣接する他方の切断刃６に形成されたねじ孔６ｂに螺着することによって、周方向（回転方向）に隣接する切断刃６，６同士をボルト３１によって連結し、６個の切断刃を連結された切断刃として一体化を図っている。なお、図１において、切断刃６を刃物取付台２０に固定するボルト３０は、最上部の切断刃６を固定するボルト３０のみを示し、且つ切断刃６，６同士を固定するボルト３１は、左側上部三枚の切断刃６を固定するボルト３１のみを示しており、その他の切断刃６を固定するボルト３０及び３１については図示を省略している。図１及び図２に示すように、一本のボルト３１により隣接する切断刃６，６同士を固定するために、一方の切断刃６の貫通孔６ａは他方の切断刃６のねじ孔６ｂに繋がるように形成されている。これにより、６個の切断刃６，６・・・が６本のボルト３１により一体的に連結されることとなる。   As shown in FIG. 2, each cutting blade 6 is formed with a through hole 6 a that penetrates a bolt, which will be described later, and a screw hole 6 b in which the bolt is screwed, and each cutting blade 6 is positioned on the blade mounting base 20. The bolt 30 penetrated through the through-hole 6a of the cutting blade 6 is screwed into a screw hole 20a (FIG. 3) formed in the blade mounting base 20, so that the cutting blade 6 with respect to the blade mounting surface 21 of the blade mounting base 20 is obtained. Bolt on. In the embodiment of the present invention, as shown in FIGS. 1 and 5, a single bolt 31 is penetrated from a through hole 6 a formed in one cutting blade 6 adjacent in the circumferential direction (rotational direction). Then, by screwing into a screw hole 6b formed in the other adjacent cutting blade 6, the cutting blades 6 and 6 adjacent in the circumferential direction (rotating direction) are connected to each other by a bolt 31, and six cuttings are made. The blades are integrated as cutting blades connected to each other. In FIG. 1, the bolt 30 for fixing the cutting blade 6 to the blade mounting base 20 shows only the bolt 30 for fixing the uppermost cutting blade 6, and the bolt 31 for fixing the cutting blades 6, 6 is: Only the bolts 31 for fixing the upper left three cutting blades 6 are shown, and the bolts 30 and 31 for fixing the other cutting blades 6 are not shown. As shown in FIGS. 1 and 2, in order to fix the adjacent cutting blades 6, 6 with one bolt 31, the through hole 6 a of one cutting blade 6 is formed in the screw hole 6 b of the other cutting blade 6. It is formed to be connected. As a result, the six cutting blades 6, 6... Are integrally connected by the six bolts 31.

前記刃物取付台２０の刃物取付面２１に取付けられた各切断刃６は、駆動軸１の軸線方向に隣接する複数のスペーサ１１，１１・・によって押圧されて軸線方向の位置決めと荷重支持がなされている。このスペーサ１１は、図１及び図４に示すように、中央部で分割され、その半割スペーサ１１ａ，１１ｂをボルト１２（図示省略）で連結して中央部に円形状の貫通孔１３を有する円筒状のスペーサ１１を形成している。本実施例においては、スペーサを２つに分割する例を説明したが、必ずしも二つ割に限定されるものではない。   Each cutting blade 6 mounted on the blade mounting surface 21 of the blade mounting base 20 is pressed by a plurality of spacers 11, 11... Adjacent in the axial direction of the drive shaft 1 to be positioned and supported in the axial direction. ing. As shown in FIGS. 1 and 4, the spacer 11 is divided at the center, and the half spacers 11a and 11b are connected by bolts 12 (not shown) to have a circular through hole 13 at the center. A cylindrical spacer 11 is formed. In the present embodiment, the example in which the spacer is divided into two has been described, but it is not necessarily limited to two.

前記スペーサ１１の貫通孔１３は、図１に示すように駆動軸１に形成された断面六角形状の係合部２の六角形に外接する内径円を構成するとともに、スペーサ１１の外径は、図１において一点鎖線で示す前記六角形型の刃物取付台２０の頂点角部と接する仮想外接円Ｓより大径としている。これにより、刃物取付台２０の両側面はスペーサ１１によって覆われ外部に露出しない。   As shown in FIG. 1, the through hole 13 of the spacer 11 forms an inner diameter circle that circumscribes the hexagonal shape of the engaging portion 2 having a hexagonal cross section formed in the drive shaft 1, and the outer diameter of the spacer 11 is In FIG. 1, the diameter is larger than the virtual circumscribed circle S in contact with the apex corner portion of the hexagonal blade mounting base 20 indicated by a one-dot chain line. Thereby, both side surfaces of the blade mounting base 20 are covered with the spacer 11 and are not exposed to the outside.

また、図６、７に示すように、刃物取付台２０にボルト３０止めされる各切断刃６は、刃物取付台２０の片面（図７において、右側面）からスペーサ１１に僅かにはみ出すように突出して刃物取付台２０に固定される。これにより、刃物取付台２０に各切断刃６を取付けると、軸線方向から見て六角形型の段差凹部２３が生じる。また、スペーサ１１の片面（図７において、左側面）には、図４、図６（ａ）に示すように、軸線方向から見て六角形型の段差突部２４が形成されている。これにより所定隙間の段差凹部２３が形成され、この段差凹部２３に連結され一体化した切断刃６，６・・・により形成された軸線方向から見て六角形型の段差突部２４が段差凹部２３に嵌合する。   Further, as shown in FIGS. 6 and 7, the cutting blades 6 that are bolted to the blade mounting base 20 are slightly protruded from the one surface (the right side surface in FIG. 7) of the blade mounting base 20 to the spacer 11. It protrudes and is fixed to the blade mounting base 20. Thus, when each cutting blade 6 is mounted on the blade mounting base 20, a hexagonal stepped recess 23 is generated as viewed from the axial direction. Further, as shown in FIGS. 4 and 6A, a hexagonal step protrusion 24 is formed on one side (left side in FIG. 7) of the spacer 11 when viewed from the axial direction. As a result, a step recess 23 having a predetermined gap is formed, and the hexagonal step protrusion 24 is formed by a step recess 24 when viewed from the axial direction formed by the cutting blades 6, 6. 23.

このように、段差凹部２３と段差突部２４とを係合させ、さらに、刃物取付台２０の側面スペーサ１１の側面に押圧させて支持することによってスペーサ１１の周方向（回転方向）の位置決めが成されるとともに、刃物取付台２０に固定する切断刃６の間隔を保持している。実施例１では、この六角形型の段差凹部２３及び段差突部２４はスペーサ１１の片面（図７において、左側面）にのみ形成しているが、当然のこと、これらをスペーサ１１の両面に形成しても良い。これにより、刃物取付台２０に固定された切断刃６をより均等に保持することができる。   In this way, the stepped recess 23 and the stepped protrusion 24 are engaged with each other, and the spacer 11 is pressed against the side surface of the side spacer 11 of the blade mounting base 20 to be supported, thereby positioning the spacer 11 in the circumferential direction (rotating direction). The distance between the cutting blades 6 fixed to the blade mounting base 20 is maintained. In Example 1, the hexagonal stepped recess 23 and the stepped protrusion 24 are formed only on one side (left side in FIG. 7) of the spacer 11, but of course, these are formed on both sides of the spacer 11. It may be formed. Thereby, the cutting blade 6 fixed to the blade mounting base 20 can be held more evenly.

以上のように構成される本実施例１は、駆動軸１に刃物取付台２０とスペーサ１１を交互に挿入し、隣接する刃物取付台２０とスペーサ１１とを相互に押圧させて駆動軸１に組み付けた後、刃物取付台２０の刃物取付面２１にそれぞれ切断刃６をボルト３０止めし、さらに、周方向に隣接する切断刃６同士をボルト３１によって連結する。この時、刃物取付台２０と各切断刃６との間において各切断刃６で囲まれた段差凹部２３が形成され、その段差凹部２３にスペーサ１１の片面に形成する段差突部２４を係合させることによってスペーサ１１の周方向に位置決めが成される。このように駆動軸１に複数の切断刃６，６・・・から成る回転刃５がスペーサ１１を介して軸方向に間隔をおいて固定され、その隣接する回転刃５の切断刃６の間隔がスペーサ１１によって保持される。そして、このスペーサ１１の外径は、図１に示すように、刃物取付台２０の仮想外接円Ｓより大きいため、刃物取付台２０の両側下面はスペーサ１１によって覆われ外部に露出しない。   In the first embodiment configured as described above, the blade mounting base 20 and the spacer 11 are alternately inserted into the drive shaft 1, and the adjacent blade mounting base 20 and the spacer 11 are pressed against each other to the drive shaft 1. After the assembly, the cutting blade 6 is fixed to the blade mounting surface 21 of the blade mounting base 20 with the bolt 30, and the cutting blades 6 adjacent to each other in the circumferential direction are connected with the bolt 31. At this time, a step recess 23 surrounded by each cutting blade 6 is formed between the blade mounting base 20 and each cutting blade 6, and a step protrusion 24 formed on one side of the spacer 11 is engaged with the step recess 23. By doing so, positioning is performed in the circumferential direction of the spacer 11. In this way, the rotary blade 5 composed of a plurality of cutting blades 6, 6... Is fixed to the drive shaft 1 through the spacer 11 with an interval in the axial direction, and the interval between the cutting blades 6 of the adjacent rotary blades 5 is fixed. Is held by the spacer 11. As shown in FIG. 1, the outer diameter of the spacer 11 is larger than the virtual circumscribed circle S of the blade mounting base 20, so that both lower surfaces of the blade mounting base 20 are covered with the spacer 11 and are not exposed to the outside.

これにより、破砕時において刃物取付台２０の磨耗を可及的に抑えることができ、刃物取付台２０の交換時期を大幅に延ばすことができるため、主要な交換部品としては各切断刃６要素とスペーサ１１だけで済む。しかも、スペーサ１１に関し、スペーサ１１に円形状の貫通孔１３を形成し、この貫通孔１３を駆動軸１に成形加工した六角形状の係合部２にやや圧入状態で挿入して駆動軸１にスペーサ１１を組み付けているため、破砕時においてスペーサ１１に周方向（回転方向）に荷重が加わったとしてスペーサ１１の回転はある程度、許容される。   As a result, the wear of the blade mounting base 20 can be suppressed as much as possible during crushing, and the replacement time of the blade mounting base 20 can be greatly extended. Only the spacer 11 is sufficient. Moreover, with respect to the spacer 11, a circular through hole 13 is formed in the spacer 11, and the through hole 13 is inserted into the hexagonal engagement portion 2 formed on the drive shaft 1 in a slightly press-fitted state to the drive shaft 1. Since the spacer 11 is assembled, the spacer 11 is allowed to rotate to some extent if a load is applied to the spacer 11 in the circumferential direction (rotation direction) during crushing.

したがって、従来のように駆動軸１００とスペーサ１０２との係合角部に荷重が局部的に加わることがない。これにより、消耗部品である刃物取付台２０とスペーサ１１の磨耗を抑えてスペーサ１１の交換時期のサイクルも延ばすことができる。しかも、各切断刃６の交換に関しては、ボルト３０，３１を取り外して簡単に行うことができ、スペーサ１１の交換についてもスペーサ１１を半分に分割してボルト１２止めしているため、駆動軸１を分解してからスペーサ１１を抜き取るといった煩わしい手間の必要ないので極めて簡単にスペーサ１１を交換することができる。さらに、本実施例においては、刃物取付台２０に分割した複数の切断刃６を夫々ボルト３０止めし、さらに、図１，図５などに示すように、周方向（回転方向）に隣接する切断刃６，６同士をボルト３１によって連結しており、例えば、特許文献２に示すような単に刃物取付台に各切断刃をボルト止めした従来構造に比べ、破砕時において各ボルト３０，３１に加わる荷重を低減させてボルト３０，３１の変形や磨耗をも抑制することができる。   Therefore, a load is not locally applied to the engaging corner between the drive shaft 100 and the spacer 102 as in the conventional case. Thereby, the cycle of the replacement time of the spacer 11 can be extended by suppressing the wear of the blade mounting base 20 and the spacer 11 which are consumable parts. In addition, the replacement of each cutting blade 6 can be easily performed by removing the bolts 30 and 31, and the replacement of the spacer 11 is also performed by dividing the spacer 11 in half and fixing the bolt 12 to the drive shaft 1. Since there is no need for troublesome work such as removing the spacer 11 after disassembling the spacer 11, the spacer 11 can be replaced very easily. Further, in the present embodiment, the plurality of cutting blades 6 divided into the blade mounting base 20 are respectively fastened with bolts 30 and further cut adjacent to the circumferential direction (rotation direction) as shown in FIGS. The blades 6 and 6 are connected to each other by bolts 31. For example, compared to a conventional structure in which each cutting blade is bolted to a blade mounting base as shown in Patent Document 2, the bolts 30 and 31 are added during crushing. The load can be reduced to suppress the deformation and wear of the bolts 30 and 31.

すなわち、従来のように、単に刃物取付台に各切断刃をボルト止めした構造ではなく、刃物取付台２０に各切断刃６をボルト３０止めし、さらに、周方向に隣接する切断刃６，６同士をボルト３１によって連結した一体的構造とした結果、従来のボルト止めの構造では、ボルトに加わる軸力は123110（Ｎ）であったの対し、本案の実施例１のボルト止め構造では、ボルトに加わる軸力は96502（Ｎ）との実験結果を得た。この実験結果からも明らか通り、刃物取付台２０に分割した各切断刃６をボルト３０止めし、さらに、周方向に隣接する切断刃６同士をボルト３１によって連結した本実施例においては各ボルト３０，３１に加わる軸力を概ね２３％低減することができ、ボルト３０，３１の破損や変形を抑えてボルト３０，３１による各切断刃６の取付強度を長期に渡って安定的に維持することができる。   That is, it is not a structure in which each cutting blade is bolted to the blade mounting base as in the prior art, but each cutting blade 6 is bolted to the blade mounting base 20 with bolts 30, and further, the cutting blades 6, 6 adjacent in the circumferential direction. As a result of the integrated structure in which the bolts 31 are connected to each other, the axial force applied to the bolt is 123110 (N) in the conventional bolted structure, whereas in the bolted structure of the first embodiment of the present invention, the bolt As a result, the axial force applied to the motor was 96502 (N). As is apparent from this experimental result, the respective cutting blades 6 divided into the blade mounting base 20 are fastened with bolts 30, and the cutting blades 6 adjacent in the circumferential direction are connected by bolts 31 in this embodiment. , 31 can be reduced by approximately 23%, and the breakage and deformation of the bolts 30, 31 can be suppressed, and the mounting strength of the cutting blades 6 by the bolts 30, 31 can be stably maintained over a long period of time. Can do.

また、本実施例においては、前述したようにスペーサ１１に形成する円形状の貫通孔１０を駆動軸１に成形加工した六角形状の係合部２にやや圧入状態で挿入してスペーサ１１に過大な荷重が加わった場合、スペーサ１１の回転はある程度許容される構造を採用しているが、刃物取付台２０の側面から各切断刃６を僅かにはみ出すように突出させて刃物取付台２０に固定することによって、刃物取付台２０と各切断刃６との間において六角形型の段差凹部２３が形成され、スペーサ１１の左側面には段差凹部２３と係合する段差突部２４を形成され、この段差凹部２３に段差突部２４を係合させることによって、刃物取付台２０に対してスペーサ１１が周方向（回転方向）に位置決めされており、スペーサ１１に過大な荷重が加わった場合にのみスペーサ１１が回転する構造であって、適正な荷重ではスペーサ１１が空転することなく、駆動軸１に対して周方向の位置決めされ、スペーサ１１が不用意に回転することもない。   In this embodiment, the circular through hole 10 formed in the spacer 11 is inserted into the hexagonal engagement portion 2 formed on the drive shaft 1 in a slightly press-fitted state as described above, and the spacer 11 is excessively large. When a large load is applied, the spacer 11 is allowed to rotate to some extent. However, each cutting blade 6 protrudes slightly from the side surface of the blade mounting base 20 and is fixed to the blade mounting base 20. By doing so, a hexagonal stepped recess 23 is formed between the blade mounting base 20 and each cutting blade 6, and a stepped protrusion 24 that engages with the stepped recess 23 is formed on the left side of the spacer 11. When the step protrusion 24 is engaged with the step recess 23, the spacer 11 is positioned in the circumferential direction (rotation direction) with respect to the blade mount 20, and an excessive load is applied to the spacer 11. A structure seen spacer 11 is rotated, without the spacer 11 idles in the proper load, is positioned in the circumferential direction relative to the drive shaft 1, nor the spacer 11 is inadvertently rotated.

図１０、図１１は本発明の二軸剪断式破砕機の実施例２を示している。実施例２は、刃物取付台５５を駆動軸５０に一体形成する点が前記実施例１と異なる以外、前記実施例１と共通しており、前記実施例１と共通する部分には共通符号を付し、前記実施例１と重複する説明について省略し、異なる部分についてのみ説明する。   10 and 11 show Embodiment 2 of the biaxial shearing crusher of the present invention. The second embodiment is the same as the first embodiment except that the blade mounting base 55 is integrally formed with the drive shaft 50, except that the first embodiment is the same as the first embodiment. In addition, the description overlapping with the first embodiment will be omitted, and only different parts will be described.

前記実施例１では、刃物取付台２０を駆動軸１と別体で形成し、その刃物取付台２０を駆動軸１に組み付けた例を示したが、本実施例では複数の刃物取付台部５５が駆動軸５０に一体形成されている。この駆動軸５０に一体形成される刃物取付台部５５は、実施例１と同様、六枚の切断刃６，６・・を取り付ける平板状の刃物取付面２１を有する六角形型であり、その刃物取付台２０の仮想外接円Ｓよりスペーサ１１の外径が大きく成形されている。これにより、刃物取付台２０の両側面はスペーサ１１によって覆われ外部に露出しない構造となっている。   In the first embodiment, the example in which the blade mounting base 20 is formed separately from the drive shaft 1 and the blade mounting base 20 is assembled to the drive shaft 1 is shown. However, in this embodiment, a plurality of blade mounting base portions 55 are provided. Is integrally formed with the drive shaft 50. The blade mounting base 55 formed integrally with the drive shaft 50 is a hexagonal shape having a flat blade mounting surface 21 to which the six cutting blades 6, 6,. The outer diameter of the spacer 11 is formed larger than the virtual circumscribed circle S of the blade mounting base 20. Thus, both side surfaces of the blade mounting base 20 are covered with the spacers 11 and are not exposed to the outside.

以上のように構成される本実施例においては、各刃物取付台部５５の両側面はスペーサ１１によって覆われ外部に露出しないため、前記実施例１と同様、刃物取付台部５５の磨耗を抑えて刃物取付台部５５、即ち駆動軸５０の交換時期を大幅に延ばすことができ、主要な交換部品としては交換が容易な各切断刃６とスペーサ１１だけで済むため、メンテナンス作業も容易となる。さらに、本実施例では、刃物取付台部５５を駆動軸５０に一体形成するため、駆動軸５０と刃物取付台部５５とを回り止め状態で組み付ける必要がないため、前記実施例１のように駆動軸５０に断面六角形型の係合部２を形成する必要はない。   In the present embodiment configured as described above, since both side surfaces of each blade mounting base 55 are covered with the spacer 11 and are not exposed to the outside, the wear of the blade mounting base 55 is suppressed as in the first embodiment. As a result, the time for replacing the blade mounting base 55, that is, the drive shaft 50, can be greatly extended, and only the cutting blades 6 and the spacers 11 that can be easily replaced can be used as main replacement parts. . Furthermore, in this embodiment, since the blade mounting base 55 is formed integrally with the drive shaft 50, it is not necessary to assemble the drive shaft 50 and the blade mounting base 55 in a non-rotating state. It is not necessary to form the engaging portion 2 having a hexagonal cross section on the drive shaft 50.

以上、本発明の実施例について詳述したが、本発明は前記実施例に限定されるものではく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、前記実施例１，２では回転刃を六枚の切断刃に分割し、これを六角形型の刃物取付台に固定した例を示したが、分割する切断刃の枚数は特に限定されるものではなく、また、刃物取付台又は刃物取付台部の形状も切断刃の枚数によって四角形型や五角形型など適宜選定すればよい。さらに、実施例２において、刃物取付台部を駆動軸と一体成形した例を示したが、要は刃物取付台よりスペーサの外径を大きく形成すればよく、交換部品を切断刃とスペーサに限定することが大切である。さらに。各切断刃の形状あるいは二軸剪断式破砕機の基本的構成なども前記実施例に限定されるものではなく、本発明の要旨の範囲内で適宜選定すればよい。   As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the first and second embodiments, the rotary blade is divided into six cutting blades, and this is fixed to a hexagonal blade mounting base. However, the number of cutting blades to be divided is particularly limited. Further, the shape of the blade mounting base or the blade mounting base portion may be appropriately selected from a square shape and a pentagonal shape depending on the number of cutting blades. Furthermore, in the second embodiment, the example in which the blade mounting base is integrally formed with the drive shaft has been shown. In short, the outer diameter of the spacer may be formed larger than the blade mounting base, and the replacement parts are limited to the cutting blade and the spacer. It is important to do. further. The shape of each cutting blade or the basic configuration of the biaxial shearing type crusher is not limited to the above embodiment, and may be selected as appropriate within the scope of the gist of the present invention.

１，５０ 駆動軸
２ 係合部
５ 回転刃
６ 切断刃
１１ スペーサ
１１ａ，１１ｂ 半割スペーサ
１０ 貫通孔
２０ 刃物取付台
２１ 刃物取付面
２２ 取付孔
２３ 段差凹部
２４ 段差突部
２５ 段部
２６ 凹部
３０，３１ ボルト
５５ 刃物取付台部
Ｓ 仮想外接円 DESCRIPTION OF SYMBOLS 1,50 Drive shaft 2 Engagement part 5 Rotary blade 6 Cutting blade 11 Spacer 11a, 11b Half spacer 10 Through hole 20 Tool mounting base 21 Tool mounting surface 22 Mounting hole 23 Step recess 24 Step protrusion 25 Step 26 recess 30 , 31 Bolt 55 Blade mounting base S Virtual circumscribed circle

Claims (7)

ケーシング内に軸受を介して回転可能に軸支された駆動軸と、この駆動軸上にスペーサを挟んで交互に配置される回転刃を備え、この回転刃を回転させてケーシング内体内に供給した被破砕物を前記回転刃で破砕して排出するように構成した剪断式破砕機において、
周方向に分割した複数個の切断刃で前記回転刃を構成し、前記スペーサを介して前記駆動軸に前記各切断刃を着脱自在に取り付ける複数の刃物取付台を軸方向に並設させ、この各刃物取付台の側面を前記スペーサで覆うように前記スペーサの外周を前記刃物取付台の外周縁より大径としたことを特徴とする剪断式破砕機。 A drive shaft rotatably supported via a bearing in the casing and a rotary blade arranged alternately on the drive shaft with a spacer interposed therebetween, and the rotary blade is rotated and supplied to the inside of the casing. In the shearing type crusher configured to crush the object to be crushed with the rotary blade and discharge it,
The rotary blade is constituted by a plurality of cutting blades divided in the circumferential direction, and a plurality of blade mounting bases for detachably attaching the cutting blades to the drive shaft via the spacers are arranged in parallel in the axial direction. A shear type crusher characterized in that an outer periphery of the spacer is made larger in diameter than an outer peripheral edge of the cutter mounting base so that a side surface of each cutter mounting base is covered with the spacer. 前記駆動軸を平行する一対の駆動軸とし、この各駆動軸上にスペーサを挟んで交互に配置される回転刃を備え、この回転刃を互いに逆方向に回転させてケーシング内体内に供給した被破砕物を前記回転刃で巻き込むように破砕して排出するように構成したことを特徴とする請求項１記載の剪断式破砕機。   The drive shafts are a pair of parallel drive shafts, and rotary blades are alternately arranged on the drive shafts with spacers interposed therebetween. The rotary blades are rotated in opposite directions to be supplied to the inside of the casing. 2. The shearing type crusher according to claim 1, wherein the crushing material is configured to be crushed and discharged so as to be wound by the rotary blade. 前記刃物取付台の外周面に前記切断刃の枚数に応じた平板状の刃物取付面を形成して前記刃物取付台を多角形型とし、その刃物取付台の頂点角部と接する仮想外接円より前記スペーサの外径を大径としたことを特徴とする請求項１又は２記載の剪断式破砕機。   From a virtual circumscribed circle that contacts the apex corner of the blade mounting base by forming a flat blade mounting surface corresponding to the number of cutting blades on the outer peripheral surface of the blade mounting base to form the blade mounting base in a polygonal shape. The shear type crusher according to claim 1 or 2, wherein an outer diameter of the spacer is a large diameter. 前記切断刃はボルトにより前記刃物取付台に着脱自在に固定され、かつ、周方向に隣接する切断刃同士をボルトによって連結したことを特徴とする請求項１〜３の何れか１項に記載の剪断式破砕機。   4. The cutting blade according to claim 1, wherein the cutting blade is detachably fixed to the blade mounting base by a bolt, and the cutting blades adjacent in the circumferential direction are connected by a bolt. 5. Shear type crusher. 前記スペーサを複数に分割して前記駆動軸に装着したことを特徴とする請求項１〜４の何れか１項に記載の剪断式破砕機。   The shear type crusher according to any one of claims 1 to 4, wherein the spacer is divided into a plurality of parts and attached to the drive shaft. 前記刃物取付台の側面から各切断刃を僅かにはみ出すように突出させて刃物取付台に固定することによって刃物取付台と各切断刃との間において刃物取付台で囲まれた段差凹部を形成するとともに、スペーサの側面に前記段差凹部と嵌合する段差突部を形成して、この段差凹部と段差突部とを係合し、かつ、刃物取付台の側面をスペーサの側面に押圧させることによってスペーサを周方向に位置決めしたことを特徴とする請求項１〜５の何れか１項に記載の剪断式破砕機。   A step recess surrounded by the blade mounting base is formed between the blade mounting base and each cutting blade by projecting the cutting blades so as to slightly protrude from the side surface of the blade mounting base and fixing them to the blade mounting base. In addition, by forming a stepped protrusion that fits with the stepped recess on the side surface of the spacer, engaging the stepped recess and the stepped protrusion, and pressing the side surface of the blade mounting base against the side surface of the spacer The shear type crusher according to any one of claims 1 to 5, wherein the spacer is positioned in a circumferential direction. 請求項１記載の剪断式破砕機に用いる回転刃であって、当該回転刃は周方向に分割した複数個の切断刃で構成され、当該複数個の切断刃は夫々がボルトによって刃物取付台に着脱自在に固定され、かつ、周方向に隣接する切断刃同士をボルトによって連結して一体化したことを特徴とする剪断式破砕機用回転刃。   It is a rotary blade used for the shear-type crusher of Claim 1, Comprising: The said rotary blade is comprised with several cutting blades divided | segmented into the circumferential direction, and each of these cutting blades is a blade mounting base with a volt | bolt. A rotary blade for a shear type crusher, which is detachably fixed and integrated by connecting cutting blades adjacent in the circumferential direction with bolts.
JP2014213037A 2014-10-17 2014-10-17 Shearing type crusher and rotary cutter of the same Pending JP2016077979A (en)

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CN112871359A (en) * 2020-12-28 2021-06-01 江苏菇神生物科技有限公司 Spartina alterniflora drug effect extraction equipment and extraction method

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