JP2010075900A - Mounting structure of crushing blade in rubber crusher - Google Patents

Mounting structure of crushing blade in rubber crusher Download PDF

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JP2010075900A
JP2010075900A JP2008250382A JP2008250382A JP2010075900A JP 2010075900 A JP2010075900 A JP 2010075900A JP 2008250382 A JP2008250382 A JP 2008250382A JP 2008250382 A JP2008250382 A JP 2008250382A JP 2010075900 A JP2010075900 A JP 2010075900A
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crushing blade
crushing
key
mounting
bolt
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JP5287094B2 (en
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Hiroyuki Taniguchi
広行 谷口
Tadashi Manabe
忠司 真鍋
Masateru Yamamoto
誠輝 山本
Mitsuru Yamaguchi
満 山口
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Nippon Steel Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rubber crusher wherein crushing blades on each outer peripheral surface of a pair of crushing rollers are installed via a mount for the crushing blades, in which the mounting structure of the crushing blades can keep the crushing blades fixed on the mount for a long time period in order to prolong the service life of bolts for fixing the crushing blades on the mount. <P>SOLUTION: An installation key 8 is composed so that it is provided with a circular annular key part 18 that has a hollow part 18a through which a bolt 15 is inserted and is arranged at a position where, among a plurality of bolts, each bolt 15 closest to the blade edge of each crushing blade passes through. A keyway 6 on the installation side and a keyway 6 on the crushing blade side have a circular hole in which the annular key parts 18 are fitted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、一対の破砕ローラによって古タイヤ等の各種ゴム製品を挟んで破砕して所定の大きさの塊に砕くゴム破砕装置における破砕刃の取付構造に関するものである。   The present invention relates to a crushing blade mounting structure in a rubber crushing apparatus that crushes various rubber products such as old tires with a pair of crushing rollers and crushes them into a lump of a predetermined size.

従来より一対の破砕ローラの間にゴム製品を挟み込んで破砕するゴム破砕装置は、特許文献１に示すように広く知られている。この種のゴム破砕装置は、各破砕ローラが、ゴムの破砕に供する破砕刃が、軸回転する円柱状のドラム外周面に設けられた破砕刃用の取付台に取付けられていて、各破砕ローラをゴムを巻き込むように回転させることにより該ゴムを破砕することができるようになっている。
ここで、この種の装置においては、上記破砕刃の取付台への取付構造は、図５に示すように、取付台３０における破砕刃３１の取付面３０ａ、及び破砕刃３１における該取付面３０ａとの当接面３１ａのそれぞれに相互に同形のキー溝３２，３３を設けると共に、これらのキー溝３２．３３内に、両方のキー溝に渡って嵌入される略直方体状の取付用キー３４を配設し、直列状に配置した破砕刃３１及び取付用キー３４を貫通する複数のボルト３５、３６，３７によって、これらの破砕刃３１及び取付用キー３４を取付台３０に固定する構成となっている。 BACKGROUND ART Conventionally, a rubber crushing apparatus that crushes a rubber product by sandwiching a rubber product between a pair of crushing rollers is widely known as shown in Patent Document 1. In this type of rubber crushing device, each crushing roller has a crushing blade for crushing rubber attached to a crushing blade mounting base provided on the outer peripheral surface of a cylindrical drum that rotates about its axis. The rubber can be crushed by rotating the rubber so as to entrain the rubber.
Here, in this type of apparatus, as shown in FIG. 5, the mounting structure of the crushing blade to the mounting base is the mounting surface 30a of the crushing blade 31 in the mounting base 30, and the mounting surface 30a in the crushing blade 31. Are provided with key grooves 32 and 33 having the same shape on each of the contact surfaces 31a with each other, and a substantially rectangular parallelepiped mounting key 34 fitted into both of the key grooves 32.33. The crushing blade 31 and the mounting key 34 are fixed to the mounting base 30 by a plurality of bolts 35, 36 and 37 penetrating the crushing blade 31 and the mounting key 34 arranged in series. It has become.

上記取付構造において、破砕刃３１に破砕ローラの軸方向側から作用する負荷については、キー溝３２，３３内の取付用キー３４の長手の側面全体が負荷を受ける上、キー溝との嵌め合いによって十分に負荷を受け止めることができる。
しかしながら、破砕ローラの回転方向から作用する負荷については、キー溝における刃先３１ｂと反対側の端部は溝壁がないことから、取付用キーとキー溝との嵌め合いによって該取付用キー３４を支持することができない。したがって、破砕刃３１及び取付用キー３４を固定している各ボルトには、破砕ローラの回転方向に関して大きなせん断力が生じることになるため、ボルトのねじ杆が疲労してしまいボルトそのものが破損すること多く、トラックやバスのタイヤ等比較的硬いタイヤを破砕する場合には破損が顕著であった。
特に、破砕刃３１を取付台３０に取付けるボルトのうち、破砕刃３１の最も刃先３１ｂに近いボルト３５は、様々な方向からの大きな負荷が作用していると考えられるため、装置の短時間の運転にも関わらず破損し易い傾向にあった。そして、この刃先に近いボルトが破損すると他のボルトにはより大きなせん断力が作用することになるため、ボルトが連鎖して次々に破損するという現象が生じ、最終的には破砕刃３１自体が取付台３０から脱落してしまうという大きな問題が生じていた。
米国特許６，３４３，７５５ Ｂ１公報 In the mounting structure described above, with respect to the load acting on the crushing blade 31 from the axial direction side of the crushing roller, the entire longitudinal side surface of the mounting key 34 in the key grooves 32 and 33 receives the load and is fitted with the key groove. The load can be received sufficiently.
However, with respect to the load acting from the rotation direction of the crushing roller, the end of the key groove opposite to the blade edge 31b has no groove wall, so that the mounting key 34 is attached by fitting the mounting key and the key groove. I can't support it. Therefore, a large shearing force is generated in each bolt fixing the crushing blade 31 and the mounting key 34 in the rotation direction of the crushing roller, so that the screw thread of the bolt is fatigued and the bolt itself is damaged. In many cases, damage was significant when relatively hard tires such as truck and bus tires were crushed.
In particular, among the bolts for attaching the crushing blade 31 to the mounting base 30, the bolt 35 closest to the cutting edge 31b of the crushing blade 31 is considered to be subjected to a large load from various directions. Despite driving, it tended to be easily damaged. When the bolt near the blade edge is damaged, a greater shearing force is applied to the other bolts, so that a phenomenon occurs in which the bolts are chained and damaged one after another. The big problem of falling off from the mounting base 30 has arisen.
US Pat. No. 6,343,755 B1

本発明の技術的課題は、一対の破砕ローラの各外周面の破砕刃が破砕刃用の取付台を介して取付けられたゴム破砕装置において、破砕刃を取付台に固定するボルトの長寿命化を図って、長期間に亘って破砕刃が取付台に固定された状態を維持できるようにすることにある。   The technical problem of the present invention is that in a rubber crushing apparatus in which the crushing blades on the outer peripheral surfaces of a pair of crushing rollers are attached via a crushing blade mounting base, the life of the bolt that fixes the crushing blade to the mounting base is extended. In order to maintain the state in which the crushing blade is fixed to the mounting base over a long period of time.

上記課題を解決するため、本発明のゴム破砕装置における破砕刃の取付構造は、一対の破砕ローラの間に破砕対象となるゴムを挟み込んで破砕するゴム破砕装置の各破砕ローラが、軸回転する円柱状のドラム外周面に設けられて、ドラムの軸線と直交し且つドラムの回転方向に延びる破砕刃用の取付面を有する複数の破砕刃取付台と、これらの破砕刃取付台の各取付面に取付けられ、ドラムの回転方向側の先端に刃先を有する略直方体状の破砕刃と、上記取付面及び該破砕刃における取付面との当接面にそれぞれ形成された相互に同形の取付面側キー溝及び破砕刃側キー溝と、これらの取付面側キー溝及び破砕刃側キー溝に嵌入された取付用キーとを備え、上記破砕刃及び該取付用キーが、上記ドラムの回転方向に直列状に配設されて上記破砕刃及び該取付用キーを貫通する複数のボルトにより破砕刃取付台に一緒に固定されたゴム破砕装置における破砕刃の取付構造において、上記取付用キーは、上記複数のボルトのうち少なくとも破砕刃の最も刃先側に位置するボルトが貫通する位置に、該ボルトが挿通される中空部を備えた円環状の環状キー部を有していると共に、上記取付面側キー溝及び破砕刃側キー溝は、該環状キー部を嵌入させる丸穴部を有していて、取付用キー全体を挟むように上記破砕刃を破砕刃取付台に固定したことを特徴とするものである。   In order to solve the above-mentioned problem, the crushing blade mounting structure in the rubber crushing device of the present invention is such that each crushing roller of the rubber crushing device that crushes by crushing the rubber to be crushed between a pair of crushing rollers rotates about its axis A plurality of crushing blade mounting bases having a crushing blade mounting surface that is provided on the outer peripheral surface of the cylindrical drum and that is orthogonal to the drum axis and extends in the rotation direction of the drum, and each mounting surface of these crushing blade mounting bases Mounting surface sides of the same shape formed on the contact surface of the substantially parallelepiped crushing blade having a cutting edge at the tip of the drum in the rotation direction and the mounting surface and the mounting surface of the crushing blade A key groove and a crushing blade side key groove, and a mounting key fitted in the mounting surface side key groove and the crushing blade side key groove, and the crushing blade and the mounting key are arranged in the rotation direction of the drum. Arranged in series, In the crushing blade mounting structure in the rubber crushing apparatus fixed together to the crushing blade mounting base by a plurality of bolts penetrating the blade and the mounting key, the mounting key includes at least a crushing blade of the plurality of bolts. At the position through which the bolt located closest to the blade edge passes, it has an annular annular key portion having a hollow portion through which the bolt is inserted, and the mounting surface side key groove and the crushing blade side key groove are The crushing blade is fixed to the crushing blade mounting base so as to have a round hole portion into which the annular key portion is inserted and sandwich the entire mounting key.

本発明においては、上記取付用キーは、上記複数のボルトのうち上記環状キーを貫通するボルト以外のボルトが貫通する略直方体状の板状キー部を有しているものとすることができる。この場合、上記取付用キーは、環状キー部と板状キー部とが別体に形成されているものとすることができる。
また、本発明においては、上記複数ボルトのうち上記環状キー部を貫通するボルトは、他のボルトより大径のねじ杆を有していることが好ましい。 In the present invention, the mounting key may have a substantially rectangular parallelepiped plate-like key portion through which a bolt other than the bolt passing through the annular key among the plurality of bolts passes. In this case, the attachment key may be formed such that the annular key portion and the plate-like key portion are formed separately.
Moreover, in this invention, it is preferable that the volt | bolt which penetrates the said cyclic | annular key part among the said several volt | bolts has a larger diameter screw rod than another bolt.

本発明によれば、取付用キーを、複数のボルトのうち少なくとも破砕刃の最も刃先側に位置するボルトが貫通する位置に、該ボルトが挿通される中空部を備えた円環状の環状キー部を備えた構成とし、該環状キー部を、取付面側キー溝及び破砕刃側キー溝に設けた丸穴部に嵌入して、取付用キー全体を挟むように上記破砕刃を破砕刃取付台に固定する構造としたため、最も刃先側に位置するボルトに作用する負荷を環状キー部が受け止める一方で該円環キー部は丸穴部との嵌め合いにより支持されて、該ボルトに過度のせん断力が生じることを防止し、ボルトの長寿命化を図ることができる。この結果、従来破損しやすかった最も刃先側に位置するボルトが保護されて他のボルトの連鎖的な破損を防ぐことができるため、長期間に亘って破砕刃が取付台に取付けられた状態が維持される。しかも、環状キー部及び丸穴部の嵌め合いによって多様な方向からの負荷を受け止めることができるため、最も刃先側に位置するボルトに多方向から過度のせん断力が作用することを抑えて、より確実にボルトの長寿命化を図ることができる。   According to the present invention, the annular key part having a hollow part through which the bolt is inserted at a position where the bolt located at least on the cutting edge side of the crushing blade passes through the mounting key. The crushing blade is mounted on the crushing blade mounting base so that the annular key portion is fitted into the round hole provided in the mounting surface side key groove and the crushing blade side key groove so as to sandwich the entire mounting key. Since the annular key portion receives the load acting on the bolt located closest to the blade edge side, the annular key portion is supported by fitting with the round hole portion, and the bolt is excessively sheared. The generation of force can be prevented, and the life of the bolt can be extended. As a result, the bolt located closest to the blade edge, which has been easily damaged in the past, can be protected and chain damage of other bolts can be prevented, so that the crushing blade is attached to the mounting base for a long period of time. Maintained. Moreover, since it is possible to receive loads from various directions by fitting the annular key part and the round hole part, it is possible to suppress excessive shearing force from acting in multiple directions on the bolt located closest to the cutting edge, and more It is possible to reliably extend the life of the bolt.

図１〜図３は、本発明のゴム破砕装置における破砕刃の取付構造の一実施の形態を示すもので、この実施の形態の取付構造は、一対の破砕ローラ２，２の間に破砕対象となるゴムを挟み込んで破砕するゴム破砕装置１に関するものであって、上記各破砕ローラ２，２が、軸回転する円柱状のドラム３の外周面に設けられた複数の破砕刃用取付台４と、これらの各取付台４に固定された破砕刃５と、上記取付台４及び該破砕刃５の各当接面（取付台の場合、後述する取付面４ｂ）にそれぞれ形成された取付面側キー溝６及び破砕刃側キー溝７と、これらの取付面側キー６溝及び破砕刃側キー溝７に嵌入された金属製の取付用キー８とを備えている。そして、上記破砕刃及び該取付用キーが、これら破砕刃５及び該取付用キー８を貫通する複数のボルトにより破砕刃取付台に一緒に固定されている。   1 to 3 show an embodiment of a crushing blade mounting structure in the rubber crushing apparatus of the present invention. The mounting structure of this embodiment is a crushing object between a pair of crushing rollers 2 and 2. A plurality of crushing blade mounting bases 4 provided on the outer peripheral surface of a cylindrical drum 3 on which the crushing rollers 2 and 2 rotate. And the crushing blade 5 fixed to each of the mounting bases 4, and the mounting surfaces formed on the mounting base 4 and the contact surfaces of the crushing blades 5 (the mounting surface 4b described later in the case of the mounting base). A side key groove 6 and a crushing blade side key groove 7 and a metal mounting key 8 fitted in the mounting surface side key 6 groove and crushing blade side key groove 7 are provided. The crushing blade and the mounting key are fixed together on the crushing blade mounting base by a plurality of bolts penetrating the crushing blade 5 and the mounting key 8.

上記ドラム３は、軸方向に貫通する回転軸３ａを中心に回転するもので、該回転軸３ａと相互に回転不能なるように連結され、図示しない駆動手段により他方の破砕ローラ２のドラムに対して相反する向きに回転自在となっている。そして、処理すべきゴムを破砕する場合には、他方の破砕ローラ２との間にあるゴムを該他方の破砕ローラ２と共に上方側から巻き込むように回転（図１中の矢印方向）するようになっている。
このドラム３の外周面には、上記取付台４を周面に沿って直列的に並べて取り付けるための複数の取付溝（図示せず）が、一定の間隔に且つ相互に平行なるように設けられている。この取付溝の間隔は、各取付溝内に上記取付台４を固定した際に、他方の破砕ローラ２の取付台４及び破砕刃５が取付台４間の隙間に進入することができる程度となっており、各破砕ローラ２の破砕刃５及び取付台４同士が噛合した状態となるようになっている。
なお、図１に示すものは、各ドラムごとに１２個の取付溝が設けられていて、取付台の列が１２列できるようにしており、各列には１２個の取付台を固定ことができるようになっている The drum 3 is rotated about a rotating shaft 3a penetrating in the axial direction. The drum 3 is connected to the rotating shaft 3a so as not to rotate with each other. And can rotate in opposite directions. When the rubber to be processed is crushed, the rubber between the other crushing roller 2 and the other crushing roller 2 are rotated together with the other crushing roller 2 from the upper side (in the direction of the arrow in FIG. 1). It has become.
A plurality of mounting grooves (not shown) for mounting the mounting bases 4 in series along the peripheral surface are provided on the outer peripheral surface of the drum 3 so as to be parallel to each other at regular intervals. ing. The interval between the mounting grooves is such that the mounting table 4 and the crushing blade 5 of the other crushing roller 2 can enter the gap between the mounting tables 4 when the mounting table 4 is fixed in each mounting groove. Thus, the crushing blade 5 and the mounting base 4 of each crushing roller 2 are engaged with each other.
1 is provided with twelve mounting grooves for each drum so that twelve rows of mounting bases can be formed, and twelve mounting bases can be fixed to each row. Be able to

上記破砕刃５は、ドラム３の回転方向側に刃先５ａを有する全体として略直方体状に形成されたもので、上記取付台４上に取付けられる際に、後述する取付面４ｂと当接する上記当接面５ｂを備えている。
具体的に、上記破砕刃５は、長手方向におけるドラム３の回転方向の一端側が、高さ方向の先端側（図２における破砕刃の上面部）に行くに従って次第に該ドラムの回転方向に若干突出するよう形成されていて、その突出部分が上記刃先５ａとなっている。また、高さ方向の基端側の長手面（図２における破砕刃５の下面部）は、上記当接面５ｂとなっており、図３に示すように、上記破砕刃側キー溝７が設けられていている。なお、この当接面における取付面４ｂと接触する部分は、全体としてほぼ平坦な面となっており、取付面４ｂにがたつきなく当接するようになっている。 The crushing blade 5 has a cutting edge 5a on the rotation direction side of the drum 3 and is formed in a substantially rectangular parallelepiped shape. When the crushing blade 5 is mounted on the mounting base 4, the crushing blade 5 contacts the mounting surface 4b described later. A contact surface 5b is provided.
Specifically, the crushing blade 5 gradually protrudes slightly in the rotation direction of the drum 3 as one end side in the rotation direction of the drum 3 in the longitudinal direction goes to the front end side in the height direction (the upper surface portion of the crushing blade in FIG. 2). The protruding portion is the blade edge 5a. Further, the longitudinal surface on the base end side in the height direction (the lower surface portion of the crushing blade 5 in FIG. 2) is the abutting surface 5b, and as shown in FIG. It is provided. In addition, the part which contacts the attachment surface 4b in this contact surface becomes a substantially flat surface as a whole, and contacts the attachment surface 4b without rattling.

さらに、上記破砕刃５には、上記破砕刃側キー溝７の溝底を高さ方向に貫通するように上記ボルト挿入用の複数ボルト穴が設けられていて、破砕刃５の上記取付台４への固定に供されている。この実施の形態においては、１つの破砕刃を取付けるため、後述のように３本のボルト１５，１６，１７を使用しており、それに伴って、破砕刃にも３つのボルト穴９，１０，１１が設けられている。
これらのボルト穴９，１０，１１は、破砕刃５の軸線上に直列状に一定の間隔を空けて配設されていて、各ボルト穴には、ボルトのボルト頭が破砕刃から突出しないようにするため、該ボルト頭全体を収容するための穴ぐり部９ａ，１０ａ，１１ａを有している。また、上記３つのボルト穴９，１０，１１のうち、最も刃先側に位置するボルト穴９は、他のボルト穴１０，１１より大径に形成されていている。 Further, the crushing blade 5 is provided with a plurality of bolt holes for inserting the bolts so as to penetrate the groove bottom of the crushing blade side key groove 7 in the height direction. It is used for fixing to. In this embodiment, in order to attach one crushing blade, three bolts 15, 16, and 17 are used as will be described later, and accordingly, the crushing blade also has three bolt holes 9, 10, 11 is provided.
These bolt holes 9, 10, 11 are arranged in series on the axis of the crushing blade 5 at a constant interval so that the bolt head of the bolt does not protrude from the crushing blade in each bolt hole. In order to make it easy, it has holes 9a, 10a, 11a for accommodating the entire bolt head. Of the three bolt holes 9, 10, 11, the bolt hole 9 located closest to the cutting edge is formed with a larger diameter than the other bolt holes 10, 11.

上記取付台４は、上記ドラム３の外周面から該ドラム３の軸方向と直交する方向に立ち上がるように形成されたブロック状のもので、上記ドラム３の外周面の沿う曲面状に形成された基端面４ａと、ドラム３の軸線と直交し且つドラムの回転方向に延びて上記破砕刃５が当接した状態で取付けられる破砕刃用の取付面４ｂを備えている。
この取付台４は、上記破砕刃５の短手の長さ（幅方向）とほぼ同じ幅に形成されていて、該破砕刃５の刃先５ａ側、即ちドラム３の回転方向の端部側は、破砕刃５の刃先側の傾斜に合わせ、高さ方向の上端側（図２における上方側）に行くに従って次第に該ドラム３の回転方向に突出した形状となっている。 The mounting base 4 is a block-like one formed so as to rise from the outer peripheral surface of the drum 3 in a direction perpendicular to the axial direction of the drum 3, and is formed in a curved shape along the outer peripheral surface of the drum 3. A base end surface 4a and a crushing blade mounting surface 4b which is orthogonal to the axis of the drum 3 and extends in the drum rotation direction and is attached in contact with the crushing blade 5 are provided.
The mounting base 4 is formed to have a width substantially equal to the short length (width direction) of the crushing blade 5, and the cutting edge 5 a side of the crushing blade 5, that is, the end side in the rotation direction of the drum 3 is In accordance with the inclination of the cutting edge side of the crushing blade 5, the shape gradually protrudes in the rotation direction of the drum 3 as it goes to the upper end side in the height direction (the upper side in FIG. 2).

また、上記取付面４ｂは、上記取付用キー８が嵌入される上記取付面側キー溝６が設けられ、その他の面、即ち、上記破砕刃と実際に接触する部分は平坦面となっており、該破砕刃とがたつきなく当接するようになっている。さらに、この取付面４ｂにおける取付面側キー溝６の溝底には、高さ方向に穿設された上記ボルト螺挿用の複数ボルト穴（この実施の形態の場合は３つ）が穿設されていて、破砕刃５の固定に供されている。これらのボルト穴１２，１３，１４は、上記破砕刃５のボルト穴９，１０，１１と適応する位置に、取付面４ｂの軸線上に直列状に一定の間隔を空けて配設されており、上記これらの３つボルト穴１２，１３，１４のうち、最も刃先側に位置するボルト穴１２は、他のボルト穴１３，１４より大径に形成されていている。   The mounting surface 4b is provided with the mounting surface side key groove 6 into which the mounting key 8 is inserted, and the other surface, that is, the portion that actually contacts the crushing blade is a flat surface. The crushing blade comes into contact with each other without rattling. Further, a plurality of bolt holes (three in the case of this embodiment) drilled in the height direction are drilled in the groove bottom of the mounting surface side key groove 6 in the mounting surface 4b. The crushing blade 5 is used for fixing. These bolt holes 12, 13, 14 are arranged in series on the axis of the mounting surface 4 b with a certain interval at positions corresponding to the bolt holes 9, 10, 11 of the crushing blade 5. Of these three bolt holes 12, 13, and 14, the bolt hole 12 located closest to the cutting edge is formed with a larger diameter than the other bolt holes 13 and 14.

上記破砕刃は、ボルトによって取付台に固定されているが、この実施の形態においては、上述のように３本のボルト１５，１６，１７を使用している。
これら各ボルトは、上記破砕刃の穴ぐり部９ａ，１０ａ，１１ａ内に完全に収容される程度の大きさのボルト頭１５ａ，１６ａ，１７ａと、破砕刃５のボルト穴９，１０，１１、及び後述の取付用キー８の中空部１８ａあるいは貫通穴１９ａを通して取付台４のボルト穴１２，１３，１４内に確実に螺合させて固定することができる程度の長さのねじ杆１５ｂ，１６ｂ，１７ｂをそれぞれ備えている。
この実施の形態においては、上記３本のボルトのうち、最も刃先側に位置するボルト１５は他の２本１６，１７に比べて、ボルト頭及びねじ杆共に大径のものが用いられており、高い強度が付与されている。なお、他の２本のボルト１６，１７は相互に同形のものを採用している。 Although the said crushing blade is being fixed to the mount with the volt | bolt, in this embodiment, the three volt | bolts 15, 16, and 17 are used as mentioned above.
These bolts are bolt heads 15a, 16a, 17a of such a size that they are completely accommodated in the hole portions 9a, 10a, 11a of the crushing blade, and bolt holes 9, 10, 11, 11 of the crushing blade 5. And screw rods 15b and 16b of such a length that can be securely screwed into the bolt holes 12, 13, and 14 of the mounting base 4 through the hollow portion 18a or the through hole 19a of the mounting key 8 to be described later. , 17b.
In this embodiment, among the above three bolts, the bolt 15 located closest to the cutting edge side has a larger bolt head and screw rod than the other two bolts 16 and 17. High strength is imparted. The other two bolts 16 and 17 have the same shape.

上記取付用キー８は、上記ボルトのうち破砕刃の最も刃先側に位置するボルト１５が挿通される中空部１８ａを備えた円環状の環状キー部１８と、他のボルトが別々に貫通する貫通穴１９ａ，１９ａを有する略直方体状の板状キー部１９とを備えている。これらの環状キー部１８と板状キー部１９とは、それぞれ別体に形成されていて、環状キー部１８には１本のボルト１５のみが、板状キー部１９にはボルト１６，１７がそれぞれ貫通するようになっている。
上記環状キー部１８及び板状キー部１９は、いずれも、上記取付面側キー溝６及び破砕刃側キー溝７の両方に渡って同時且つがたつきなく収容される程度の高さ、即ち、両キー溝の深さを足した程度の高さを有しており、さらに、これらの環状キー部１８及び板状キー部１９における両キー溝６，７の溝壁及び溝底との接触する部分は平滑な面となっていて、破砕刃５が取付台５にがたつきなく固定されるようになっている。
また、上記環状キー部１８は、全体としての外形が平面視真円状で、且つ外径が板状キー部１９の短手方向（幅方向）の長さよりも大きく形成されている。
なお、上記環状キー部１８の中空部１８ａは、最も刃先側に位置するボルト１５を挿通することができる程度の径を有しており、また、上記板状キー部１９の貫通穴１９ａは、上記破砕刃５及び取付台４における刃先側のボルト以外のボルト１６，１７の位置に適合するように設けられている。 The mounting key 8 includes an annular ring-shaped key portion 18 having a hollow portion 18a through which the bolt 15 located closest to the cutting edge of the crushing blade among the bolts, and a penetrating through other bolts separately. And a plate-like key portion 19 having a substantially rectangular parallelepiped shape having holes 19a and 19a. The annular key portion 18 and the plate-like key portion 19 are formed separately from each other. The annular key portion 18 has only one bolt 15 and the plate-like key portion 19 has bolts 16 and 17. Each is designed to penetrate.
The annular key portion 18 and the plate-like key portion 19 are both high enough to be accommodated simultaneously and without rattling over both the mounting surface side keyway 6 and the crushing blade side keyway 7, that is, Further, it has a height that is the sum of the depths of the two key grooves, and further contacts the groove walls and the groove bottoms of the two key grooves 6 and 7 in the annular key portion 18 and the plate-like key portion 19. The portion to be made is a smooth surface, and the crushing blade 5 is fixed to the mounting base 5 without rattling.
Further, the annular key portion 18 is formed so that the outer shape as a whole is a perfect circle in plan view, and the outer diameter is larger than the length of the plate-like key portion 19 in the short direction (width direction).
The hollow portion 18a of the annular key portion 18 has a diameter that allows the bolt 15 positioned closest to the blade edge to be inserted, and the through hole 19a of the plate-like key portion 19 The crushing blade 5 and the mounting base 4 are provided so as to be adapted to the positions of bolts 16 and 17 other than the cutting edge side bolts.

一方、上記取付面側キー溝６及び破砕刃側キー溝７は、相互に同形に形成されたもので、図３に示すように、いずれも、破砕刃５の刃先側に相当する位置に配設されて上記取付用キー８の環状キー部１８を嵌入させる丸穴部６ａ，７ａと、上記板状キー部１９を嵌入させる角穴部６ｂ，７ｂとを直列状に配置した形状にそれぞれ形成されている。
上記各丸穴部６ａ，７ａは、各キー溝の開口側から見て上記環状キー部１８の外形とほぼ同形・同径の略円形状にそれぞれ形成されていて、環状キー部１８ががたつきなく収まるようになっている。
また、上記各角穴部６ｂ，７ｂは、破砕刃５及び取付台４の各長手方向に延びていて、各キー溝の開口側から見て、上記板状キー部１９におけるボルト穴を有する長手面（図２における上下面）の形状とほぼ同形の略矩形状に形成されおり、この角穴部における丸穴部６ａ，７ａと反対側の端部は溝壁がなく切り欠かれた状態となっている。
なお、上記丸穴部６ａ，７ａと角穴部６ｂ，７ｂとの境界部分は、角穴部６ｂ，７ｂの幅相当が切り欠かれていて、取付面側キー溝６及び破砕刃側キー溝７全体としては、異なる形状の溝が連続する構成となっている。ここで、上述のように上記取付用キー８の環状キー部１８の外径は板状キー部１９の幅よりも大きく形成されていて、上記各丸穴部６ａ，７ａの径は、上記各角穴部６ｂ，７ｂの短手（幅）よりも大きく形成されていることになるため、環状キー部１８は丸穴部６ａ，７ａ内に安定的に収容される一方、板状キー部１９はボルト１６，１７によって長手方向に２箇所固定されるため、該板状キー部１９も角穴６ｂ，７ｂ内に安定的に収容されることとなる。 On the other hand, the mounting surface side keyway 6 and the crushing blade side keyway 7 are formed in the same shape as each other, and are arranged at positions corresponding to the cutting edge side of the crushing blade 5 as shown in FIG. The round hole portions 6a and 7a for inserting the annular key portion 18 of the mounting key 8 and the square hole portions 6b and 7b for inserting the plate-like key portion 19 are respectively formed in series. Has been.
Each of the round hole portions 6a and 7a is formed in a substantially circular shape having substantially the same shape and the same diameter as the outer shape of the annular key portion 18 when viewed from the opening side of each key groove. It fits comfortably.
Each of the square hole portions 6b and 7b extends in the longitudinal direction of the crushing blade 5 and the mounting base 4, and is a longitudinal portion having a bolt hole in the plate-like key portion 19 when viewed from the opening side of each key groove. The surface (upper and lower surfaces in FIG. 2) is formed in a substantially rectangular shape that is substantially the same shape, and the end opposite to the round hole portions 6a and 7a in the square hole portion is not grooved and is notched. It has become.
The boundary portions between the round hole portions 6a and 7a and the square hole portions 6b and 7b are notched in the width of the square hole portions 6b and 7b, so that the mounting surface side key groove 6 and the crushing blade side key groove are formed. As a whole, the grooves 7 having different shapes are continuous. Here, as described above, the outer diameter of the annular key portion 18 of the mounting key 8 is formed larger than the width of the plate-like key portion 19, and the diameter of each of the round hole portions 6 a and 7 a Since it is formed larger than the short side (width) of the square hole parts 6b, 7b, the annular key part 18 is stably accommodated in the round hole parts 6a, 7a, while the plate-like key part 19 is provided. Are fixed at two locations in the longitudinal direction by the bolts 16 and 17, so that the plate-like key portion 19 is also stably accommodated in the square holes 6b and 7b.

上記構造を有するゴム破砕装置における破砕刃の取付構造においては、取付用キー８が、３本のボルト１５，１６，１７のうち破砕刃５の最も刃先側に位置するボルト１５が貫通する位置に、該ボルト１５が挿通される中空部１８ａを有する円環状の環状キー部１８を備えた構成とし、該環状キー部１８を、取付面側キー溝６及び破砕刃側キー溝７にそれぞれ設けた丸穴部６ａ，７ａに嵌入して、取付用キー８全体を挟むように上記破砕刃５を取付台４に固定する構造としたため、最も刃先側に位置するボルト１５に作用する負荷を環状キー部１８が受け止める一方で、該円環キー部１８は丸穴部６ａ，７ａとの嵌め合いにより支持されて、該ボルト１５に過度のせん断力が生じることを防止することができ、これにより、該ボルト１５を保護して、該ボルトの長寿命化を図ることができる。しかも、最も負荷が作用する刃先側に位置するこのボルト１５のねじ杆１５ａを他のボルト１６，１７よりも大径にして、該ねじ杆部分の強度を他のものに比べて高くしたため、該ボルト１５自体が破損しにくい。さらに、上記環状キー部１８及び丸穴部６ａ，７ａの嵌め合いは多様な方向からの負荷を受け止めることができるため、最も刃先側に位置するボルト１５に多方向から過度のせん断力が作用することを抑えてより効果的に該ボルトの長寿命化を図ることができる。
この結果、従来破損しやすかった最も刃先側に位置するボルト１５の破損が防止されて他のボルト１６，１７の連鎖的な破損を防ぐことができるため、これらの他のボルト１６，１７も長寿命化が図られ、これにより、保護長期間にわたって破砕刃５が取付台４に取付られた状態を維持することができる。 In the crushing blade mounting structure in the rubber crushing apparatus having the above structure, the mounting key 8 is located at a position where the bolt 15 located closest to the cutting edge of the crushing blade 5 among the three bolts 15, 16, 17 passes. The annular key portion 18 having a hollow portion 18a through which the bolt 15 is inserted is provided, and the annular key portion 18 is provided in the attachment surface side key groove 6 and the crushing blade side key groove 7, respectively. Since the crushing blade 5 is fixed to the mounting base 4 so as to be fitted in the round hole portions 6a and 7a so as to sandwich the entire mounting key 8, the load acting on the bolt 15 located closest to the cutting edge is used as an annular key. While the portion 18 is received, the annular key portion 18 is supported by fitting with the round hole portions 6a and 7a, thereby preventing an excessive shearing force from being generated in the bolt 15. Hold the bolt 15 , It is possible to prolong the life of the said bolt. In addition, since the screw rod 15a of the bolt 15 located on the cutting edge side where the load acts most is made larger in diameter than the other bolts 16 and 17, the strength of the screw rod portion is higher than the other bolts, The bolt 15 itself is not easily damaged. Furthermore, since the fitting of the annular key portion 18 and the round hole portions 6a and 7a can receive loads from various directions, excessive shearing force acts on the bolt 15 located closest to the blade edge from multiple directions. This makes it possible to effectively extend the life of the bolt.
As a result, it is possible to prevent damage to the bolt 15 located closest to the cutting edge side, which has been easily damaged in the past, and to prevent chain damage of the other bolts 16 and 17, so that these other bolts 16 and 17 are also long. The service life can be extended, and the state in which the crushing blade 5 is attached to the mounting base 4 can be maintained over a long protection period.

ゴム破砕装置における従来の破砕刃の取付構造（図５）と、本発明の上記実施の形態に係る取付構造（図２）とのそれぞれのボルト寿命を比較した。
破砕刃及び破砕刃用取付台の大きさ・材質は双方ともに同じものとし、使用するボルト、取付用キー（本発明の場合は、環状キー部及び板状キー部）の大きさ・材質は次の表１の通りとした。
なお、表１中、「先端ボルト」は刃先側のボルトを、「末端ボルト」は該刃先側のボルトと反対側に位置するボルトをそれぞれ指し、また、「ＵＮ」はユニファイ規格のボルト（いわゆるインチねじ）である。

Figure 2010075900
The bolt lifetimes of the conventional crushing blade mounting structure (FIG. 5) in the rubber crushing device and the mounting structure (FIG. 2) according to the embodiment of the present invention were compared.
Both the size and material of the crushing blade and crushing blade mounting base are the same. The size and material of the bolts and mounting keys to be used (in the case of the present invention, the annular key portion and the plate key portion) are as follows. Table 1 below.
In Table 1, “tip bolt” refers to a cutting edge side bolt, “terminal bolt” refers to a bolt located on the opposite side of the cutting edge side bolt, and “UN” refers to a unified standard bolt (so-called bolt). Inch screw).
Figure 2010075900

比較実験は、図１のゴム破砕装置によって破砕対象となるゴム５００ｔ（５．０×１０５ｋｇ）を破砕して、破砕終了後にサンプルとなるボルトを回収して引張試験を行い、破断強度がボルトの許容応力より低ければボルトの寿命と判断するようにした。以降、ゴムを５００ｔ破壊する度にサンプルとなるボルトを回収して順次引張試験を行っていった。
この比較実験の結果は図４のようになった。即ち、本発明の実施の形態に係る取付構造によれば、ボルトの寿命が従来の取付構造の約５倍程度延びることが確認された。 In the comparative experiment, 500 t (5.0 × 10 5 kg) of the rubber to be crushed is crushed by the rubber crushing apparatus of FIG. If it is lower than the allowable stress of the bolt, the life of the bolt is judged. Thereafter, every time 500 tons of rubber was broken, a sample bolt was collected and sequentially subjected to a tensile test.
The result of this comparative experiment is as shown in FIG. That is, according to the mounting structure according to the embodiment of the present invention, it has been confirmed that the life of the bolt extends by about five times that of the conventional mounting structure.

本発明の実施の形態は、上述した実施の形態に限定されるものではない。
即ち、上記実施の形態においては、上記取付用キーは、環状キー部と板状キー部とを別体に設けたものとしているが、取付用キー部は、両キー部を一体に形成したものであってもよい。
また、上記実施の形態においては、破砕刃の取付台への固定に３本のボルトを使用しているが、複数本であれば、破砕刃の剛性等を考慮した上で任意に設定することができる。 The embodiment of the present invention is not limited to the above-described embodiment.
That is, in the above embodiment, the mounting key is provided with the annular key portion and the plate-like key portion separately, but the mounting key portion is formed by integrally forming both key portions. It may be.
Further, in the above embodiment, three bolts are used for fixing the crushing blade to the mounting base. However, if there are a plurality of bolts, it is arbitrarily set in consideration of the rigidity of the crushing blade. Can do.

さらに、上記実施の形態において、複数のボルトのうち最も刃先側に位置するボルトが貫通する位置にのみ環状キー部を配設し、他のボルトが貫通する部分には板状キー部を配設した構成としているが、板状キー部を設けることなく、各ボルトが貫通する中空部を有する円環状の環状キー部を設けるようにしてもよい。この場合、各環状キー部が多方向からの負荷に対応し、それぞれの中空部を貫通する各ボルトに多方向から過度のせん断力が作用するのを効果的に防止することができる。なお、この場合、取付面側キー溝及び破砕刃側キー溝には、この環状キー部が嵌入する丸穴部を形成する必要がある。   Further, in the above embodiment, the annular key portion is disposed only at a position where the bolt located closest to the blade edge passes among the plurality of bolts, and the plate-shaped key portion is disposed at a portion where the other bolt penetrates. Although it is set as the structure, you may make it provide the annular | circular shaped annular key part which has the hollow part which each volt | bolt penetrates, without providing a plate-shaped key part. In this case, each annular key portion corresponds to a load from multiple directions, and it is possible to effectively prevent an excessive shearing force from acting from multiple directions on each bolt penetrating each hollow portion. In this case, the mounting surface side keyway and the crushing blade side keyway need to be formed with a round hole portion into which the annular key portion is fitted.

また、上記実施の形態では、取付面側キー溝及び破砕刃側キー溝の各角穴部における丸穴部とは反対側の端部は溝壁が切り欠かれているが、この切り欠き部分は必ずしも設ける必要はなく、溝壁を形成して取付用キー全体がキー溝内に完全に収容される構成であってもよく、この場合ドラムの回転方向からの負荷を取付用キーが受け止めることができため、ボルトに大きなせん断力が作用するのをより効果的に防止することができる。   Moreover, in the said embodiment, although the edge part on the opposite side to the round hole part in each square hole part of a mounting surface side keyway and a crushing blade side keyway has a groove wall, this notch part However, it is not always necessary to provide a groove wall, and the entire mounting key may be completely accommodated in the key groove. In this case, the mounting key receives the load from the rotation direction of the drum. Therefore, it is possible to more effectively prevent a large shearing force from acting on the bolt.

さらに、上記実施の形態では、図３に示すように、上記破砕刃側キー溝は、丸穴部の刃先側に曲面状の溝壁（内周面）が形成された構成となっているが、この部分の溝壁は、上記角穴部の短手の大きさ（幅）と同程度の大きさ幅で且つ同程度の深さの溝状に切り欠いてもよく、破砕刃側キー溝が破砕刃における取付面との当接面の長手方向の全長にわたって形成された構成とすることができる。   Furthermore, in the said embodiment, as shown in FIG. 3, although the said crushing blade side keyway has the structure by which the curved groove wall (inner peripheral surface) was formed in the blade-tip side of a round hole part. The groove wall of this part may be cut out into a groove shape having the same width and the same depth as the short width (width) of the square hole portion, and the crushing blade side key groove However, it can be set as the structure formed over the full length of the longitudinal direction of the contact surface with the attachment surface in a crushing blade.

また、上記実施の形態においては、上記環状キーは、平面視の外形を真円状としているが、これに限らず、外形を楕円形状とすることができる。あるいは、キー溝との嵌め合いにより多様な方向からの負荷を受け止め、ボルトに過度のせん断応力が作用しないものであれば、角隅を面取りして略円形状に形成した多角形状や、多くの頂点を備えて円形と同一視できるような多角形状のものを採用してもよい。この場合においては、取付側キー溝及び破砕刃側キー溝の丸穴部の形状を、その環状キーの形状に適応した形状とすることが肝要である。
なお、環状キーの平面視の外形としては、円形と同一視できないような多角形も考えられるが、このような多角形は、負荷の作用方向によってはキー溝との嵌め合いによりボルトに過度のせん断力が作用するのを防止することができる場合があるものの、多様な方向からの負荷に対応しきれずに、結果としてボルトに過度のせん断力が作用してしまう可能性がある。したがって、環状キーの平面視の外形は、多様な方向からの負荷を受け止めやすい上述のような真円状、楕円形状、円形と同一視できるような多角形が適切であり、中でも、様々な方向からの負荷をより的確に受け止めることができ且つ剛性にも優れる真円状のものが最も好ましい。 Moreover, in the said embodiment, although the said cyclic | annular key makes the external shape of planar view the perfect circle shape, it is not restricted to this, An external shape can be made into an elliptical shape. Or, if it receives a load from various directions by fitting with the key groove, and the excessive shearing stress does not act on the bolt, a polygonal shape in which corners are chamfered to form a substantially circular shape, and many A polygonal shape that has a vertex and can be identified with a circle may be adopted. In this case, it is important that the round hole portions of the attachment-side keyway and the crushing blade-side keyway have a shape adapted to the shape of the annular key.
In addition, as the outer shape of the annular key in plan view, a polygon that cannot be identified as a circle is conceivable. However, depending on the direction of the load, such a polygon may be excessively attached to the bolt due to the fitting with the key groove. Although it may be possible to prevent the shearing force from acting, it may not be able to cope with loads from various directions, and as a result, an excessive shearing force may act on the bolt. Accordingly, the outer shape of the annular key in plan view is suitably a perfect circle, ellipse, or polygon that can be identified with a circle as described above, which can easily receive loads from various directions. It is most preferable to use a perfect circle that can more accurately receive the load from the surface and has excellent rigidity.

本発明に係る破砕刃の取付構造が使用されるゴム破砕装置の破砕ローラの斜視図である。It is a perspective view of the crushing roller of the rubber crushing apparatus in which the attachment structure of the crushing blade which concerns on this invention is used. 本発明に係る破砕刃の取付構造の分解斜視図である。It is a disassembled perspective view of the attachment structure of the crushing blade which concerns on this invention. 破砕刃における取付台との当接面を示す平面図である。It is a top view which shows the contact surface with the mounting base in a crushing blade. 本発明に係る取付構造のボルトの寿命と従来の取付構造のボルトの寿命とを比較したグラフである。It is the graph which compared the lifetime of the bolt of the mounting structure which concerns on this invention, and the lifetime of the bolt of the conventional mounting structure. 従来の破砕刃の取付構造を示す分解斜視図である。It is a disassembled perspective view which shows the attachment structure of the conventional crushing blade.

符号の説明Explanation of symbols

１ ゴム破砕装置
２ 破砕ローラ
３ ドラム
４ 破砕刃用取付台
５ 破砕刃
６ 取付面側キー溝
７ 破砕刃側キー溝
６ａ，７ａ 丸穴部
８ 取付用キー
１５，１６，１７ ボルト
１８ 環状キー部
１８ａ 中空部


DESCRIPTION OF SYMBOLS 1 Rubber crushing apparatus 2 Crushing roller 3 Drum 4 Crushing blade mounting base 5 Crushing blade 6 Mounting surface side keyway 7 Crushing blade side keyway 6a, 7a Round hole part 8 Mounting key 15, 16, 17 Bolt 18 Ring key part 18a hollow part


Claims (4)

一対の破砕ローラの間に破砕対象となるゴムを挟み込んで破砕するゴム破砕装置の各破砕ローラが、軸回転する円柱状のドラム外周面に設けられて、ドラムの軸線と直交し且つドラムの回転方向に延びる破砕刃用の取付面を有する複数の破砕刃取付台と、これらの破砕刃取付台の各取付面に取付けられ、ドラムの回転方向側の先端に刃先を有する略直方体状の破砕刃と、上記取付面及び該破砕刃における取付面との当接面にそれぞれ形成された相互に同形の取付面側キー溝及び破砕刃側キー溝と、これらの取付面側キー溝及び破砕刃側キー溝に嵌入された取付用キーとを備え、上記破砕刃及び該取付用キーが、上記ドラムの回転方向に直列状に配設されて上記破砕刃及び該取付用キーを貫通する複数のボルトにより破砕刃取付台に一緒に固定されたゴム破砕装置における破砕刃の取付構造において、
上記取付用キーは、上記複数のボルトのうち少なくとも破砕刃の最も刃先側に位置するボルトが貫通する位置に、該ボルトが挿通される中空部を備えた円環状の環状キー部を有していると共に、上記取付面側キー溝及び破砕刃側キー溝は、該環状キー部を嵌入させる丸穴部を有していて、取付用キー全体を挟むように上記破砕刃を破砕刃取付台に固定したことを特徴とするゴム破砕装置における破砕刃の取付構造。 Each crushing roller of a rubber crushing device that crushes by crushing rubber to be crushed between a pair of crushing rollers is provided on the outer peripheral surface of a cylindrical drum that rotates on an axis, is orthogonal to the axis of the drum and rotates the drum A plurality of crushing blade mounting bases having a crushing blade mounting surface extending in the direction, and a substantially rectangular parallelepiped crushing blade attached to each mounting surface of these crushing blade mounting bases and having a cutting edge at the tip of the drum in the rotation direction side And the mounting surface side keyway and the crushing blade side keyway formed on the mounting surface and the contact surface of the crushing blade with the mounting surface, and the mounting surface side keyway and crushing blade side, respectively. A plurality of bolts that pass through the crushing blade and the mounting key, the crushing blade and the mounting key being arranged in series in the rotation direction of the drum. Fixed together on the crushing blade mount In the mounting structure of the crushing blades in rubber crushing device,
The mounting key has an annular annular key portion having a hollow portion through which the bolt is inserted at a position where the bolt located at the most cutting edge side of the crushing blade passes through among the plurality of bolts. In addition, the mounting surface side keyway and the crushing blade side keyway have a round hole portion into which the annular key portion is inserted, and the crushing blade is attached to the crushing blade mounting base so as to sandwich the entire mounting key. A crushing blade mounting structure in a rubber crusher characterized by being fixed. 上記取付用キーは、上記複数のボルトのうち上記環状キーを貫通するボルト以外のボルトが貫通する略直方体状の板状キー部を有していることを特徴とする請求項１に記載のゴム破砕装置における破砕刃の取付構造。   2. The rubber according to claim 1, wherein the mounting key has a substantially rectangular parallelepiped plate-like key portion through which a bolt other than the bolt penetrating the annular key among the plurality of bolts penetrates. Crushing blade mounting structure in crushing equipment. 上記取付用キーは、環状キー部と板状キー部とが別体に形成されていることを請求項２に記載のゴム破砕装置における破砕刃の取付構造。   The attachment structure of the crushing blade in the rubber crushing apparatus according to claim 2, wherein the attaching key has a ring key part and a plate-like key part formed separately. 上記複数ボルトのうち上記環状キー部を貫通するボルトは、他のボルトより大径のねじ杆を有していることを特徴とする請求項１乃至請求項３のいずれかに記載のゴム破砕装置における破砕刃の取付構造。

4. The rubber crushing device according to claim 1, wherein a bolt passing through the annular key portion among the plurality of bolts has a screw rod having a larger diameter than other bolts. 5. Crushing blade mounting structure.

JP2008250382A 2008-09-29 2008-09-29 Crushing blade mounting structure in rubber crusher Expired - Fee Related JP5287094B2 (en)

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CN105363528A (en) * 2015-10-26 2016-03-02 江苏瑞赛克环保设备科技股份有限公司 Single-shaft shredder
JP2016221417A (en) * 2015-05-26 2016-12-28 トッパン・フォームズ株式会社 Shredder
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JPH06315648A (en) * 1993-04-30 1994-11-15 Aichi:Kk Crusher
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JP2000189825A (en) * 1998-12-25 2000-07-11 Heriosu:Kk Structure of rotary blade of crusher
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016221417A (en) * 2015-05-26 2016-12-28 トッパン・フォームズ株式会社 Shredder
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JP2019202270A (en) * 2018-05-23 2019-11-28 パンパシフィック・カッパー株式会社 Auxiliary blade structure of stirring-type drying device comprising cracking function
JP7112248B2 (en) 2018-05-23 2022-08-03 パンパシフィック・カッパー株式会社 Aileron structure of agitation dryer with crushing function

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