JP7028822B2

JP7028822B2 - Crusher

Info

Publication number: JP7028822B2
Application number: JP2019056408A
Authority: JP
Inventors: 幸助赤瀬; 和也山口; 睦泰河島
Original assignee: Kurimoto Ltd
Current assignee: Kurimoto Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2022-03-02
Anticipated expiration: 2039-03-25
Also published as: JP2020157178A

Description

本発明は、樹脂、鉱物等を粉砕室内で回転するロータ円周に取り付けた粉砕部材で粉砕する、粉砕装置に関する。 The present invention relates to a crushing device that crushes a resin, a mineral, or the like with a crushing member attached to a rotor circumference rotating in a crushing chamber.

この種の粉砕装置として、例えば、特許文献１のように、円筒状の粉砕室の内部のロータと、粉砕室内周面に取り付けられたライナを備えたものが知られている。このロータの円周部にハンマー部材を備え、ロータを回転させて被処理物をハンマーで粉砕する。この破砕装置では、ロータの外周側に垂直に延びる縦溝を形成し、この縦溝の内側部に被処理物との当たり面を形成した粉砕刃が記載されている。この粉砕刃を備えた粉砕装置によれば、被処理物と粉砕刃の衝突頻度が上がり、粉砕効率が向上する。 As a crushing device of this type, for example, as in Patent Document 1, a device including a rotor inside a cylindrical crushing chamber and a liner attached to the peripheral surface of the crushing chamber is known. A hammer member is provided on the circumference of the rotor, and the rotor is rotated to crush the object to be processed with a hammer. In this crushing device, a crushing blade is described in which a vertical groove extending vertically on the outer peripheral side of the rotor is formed, and a contact surface with an object to be processed is formed in the inner portion of the vertical groove. According to the crushing device provided with this crushing blade, the collision frequency between the object to be processed and the crushing blade is increased, and the crushing efficiency is improved.

特開平７－１１２１３８号公報Japanese Unexamined Patent Publication No. 7-112138

上記特許文献１などの従来の粉砕装置では、例えば、図９Ａ及び図９Ｂに示すように、粉砕部材３２０を表面側から締結用ボルトでロータに固定するため、粉砕部材３２０には締結用ボルト挿通孔３２１が形成されている。また、ロータに対して位置決め及び回り止めを行うために、ロータ側から突出する位置決めピンを挿入する位置決め用凹部３１６が形成されている。 In the conventional crushing apparatus such as Patent Document 1, for example, as shown in FIGS. 9A and 9B, since the crushing member 320 is fixed to the rotor from the surface side with a fastening bolt, a fastening bolt is inserted into the crushing member 320. A hole 321 is formed. Further, in order to perform positioning and detentation with respect to the rotor, a positioning recess 316 for inserting a positioning pin protruding from the rotor side is formed.

また、締結用ボルトの頭部が被処理物側に露出しているので、損傷しやすい上に、締結用ボルトで粉砕部材３２０が大きな遠心力や被処理物の衝突エネルギーによって外れないように充分な締結力を確保しなければならない。また、粉砕部３２２の大きなザグリ部３２２ａを設けているので、その分だけ粉砕部３２２の厚みが薄くなり、早めに交換しなければならなかった。 Further, since the head of the fastening bolt is exposed on the surface to be processed, it is easily damaged, and the fastening bolt is sufficient to prevent the crushing member 320 from coming off due to a large centrifugal force or collision energy of the object to be processed. It is necessary to secure a strong fastening force. Further, since the large counterbore portion 322a of the crushing portion 322 is provided, the thickness of the crushing portion 322 is reduced by that amount, and the crushing portion 322 must be replaced as soon as possible.

このように粉砕部材３２０には大きな力が加わるので、片当たり防止の目的もあって、締結用ボルトを挿通するための締結用ボルト挿通孔３２１の内径及び位置について高い寸法精度が必要であった。 Since a large force is applied to the crushing member 320 in this way, high dimensional accuracy is required for the inner diameter and position of the fastening bolt insertion hole 321 for inserting the fastening bolt for the purpose of preventing one-sided contact. ..

一方で、一般に、粉砕部材３２０は、炭化タングステンなど、窒化ホウ素やダイヤモンドでしか加工できないような極めて硬度の高い超硬材料よりなる。このため、締結用ボルト挿通孔３２１の径及び位置について高い寸法精度を得るために機械加工するのは非常に困難である。 On the other hand, in general, the crushing member 320 is made of a cemented carbide material having extremely high hardness, such as tungsten carbide, which can be processed only with boron nitride or diamond. Therefore, it is very difficult to machine the diameter and position of the fastening bolt insertion hole 321 in order to obtain high dimensional accuracy.

そこで、本発明は、粉砕部材の機械加工の手間を省いて締結用ボルトに加わる荷重をできるだけ低減することを目的とする。 Therefore, an object of the present invention is to reduce the load applied to the fastening bolt as much as possible by eliminating the labor of machining the crushing member.

上記の目的を達成するために、この発明では、粉砕室内で回転する円板状のロータの周縁に配置した粉砕部材によって被処理物に衝撃を加えて粉砕する粉砕装置を前提とし、
上記ロータの表面には、周方向に間隔を空けて上記粉砕部材を固定するための粉砕部材収容凹部が形成され、
上記粉砕部材は、
上記粉砕部材収容凹部に挿入されると共に、締結用ボルトが締結される雌ネジ部が形成された挿入用凸部と、
上記挿入用凸部に連続し、上記被処理物に衝突して該被処理物を粉砕する粉砕部とが一体に形成されており、
上記挿入用凸部が上記粉砕部材収容凹部に挿入された状態で、上記ロータの裏面から上記締結用ボルトによって締結可能に構成されている。 In order to achieve the above object, the present invention presupposes a crushing device that crushes an object to be processed by applying an impact to a crushing member arranged on the peripheral edge of a disk-shaped rotor rotating in a crushing chamber.
On the surface of the rotor, crushing member accommodating recesses for fixing the crushing member at intervals in the circumferential direction are formed.
The above crushing member
An insertion convex portion that is inserted into the crushing member accommodating recess and has a female screw portion to which a fastening bolt is fastened.
A crushing portion that is continuous with the insertion convex portion and collides with the object to be processed to crush the object to be processed is integrally formed.
With the insertion convex portion inserted into the crushing member accommodating recess, the rotor can be fastened from the back surface by the fastening bolt.

上記の構成によると、雌ネジ部が形成された粉砕部材の挿入用凸部をロータの表面に形成した粉砕部材収容凹部に挿入した状態で、ロータの裏面から締結用ボルトで締結するようにしているので、締結用ボルトに被処理物が衝突することはなく、また、挿入用凸部外周面と、粉砕部材収容凹部の内周面とが面接触するので、遠心力や被処理物の衝突エネルギーを、これらの面で受けることができ、締結用ボルトに加わる荷重が極めて効果的に低減される。また、挿入用凸部と粉砕部材収容凹部との嵌め込み構造であるので、従来のような位置決めピンと位置決め用凹部による位置決めが不要となり、締結用ボルト挿通孔１２１の径及び位置について高い寸法精度を得るために機械加工する必要がない。さらに、締結用ボルトはロータの裏面側から締結されるので、わざわざ粉砕部材にザグリ部を設ける必要がなく、その分だけ粉砕部材の厚みを確保しやすくなり、耐久性が向上する。 According to the above configuration, the convex portion for inserting the crushing member having the female screw portion formed therein is inserted into the crushing member accommodating recess formed on the surface of the rotor, and then fastened from the back surface of the rotor with a fastening bolt. Therefore, the object to be processed does not collide with the fastening bolt, and the outer peripheral surface of the convex portion for insertion and the inner peripheral surface of the concave portion for accommodating the crushing member are in surface contact with each other, so that centrifugal force or the object to be processed collides. Energy can be received on these surfaces and the load applied to the fastening bolts is extremely effectively reduced. Further, since the insertion structure is such that the convex portion for insertion and the concave portion for accommodating the crushing member are fitted, positioning by the conventional positioning pin and concave portion for positioning becomes unnecessary, and high dimensional accuracy is obtained for the diameter and position of the fastening bolt insertion hole 121. No need to machine for this. Further, since the fastening bolt is fastened from the back surface side of the rotor, it is not necessary to bother to provide a counterbore portion on the crushing member, and it becomes easier to secure the thickness of the crushing member by that amount, and the durability is improved.

第２の発明では、第１の発明において、
上記挿入用凸部は、平面視多角形状であり、
上記粉砕部材収容凹部も上記挿入用凸部に対応した平面視多角形状である。 In the second invention, in the first invention,
The above-mentioned convex portion for insertion has a polygonal shape in a plan view, and has a polygonal shape.
The crushing member accommodating recess also has a polygonal shape in a plan view corresponding to the insertion convex portion.

上記の構成によると、多角形状の挿入用凸部の外周面と、多角形状の粉砕部材収容凹部の内周面とがそれぞれ対向する面で面接触するので、遠心力や被処理物の衝突エネルギーを効果的に受けることができると共に、位置決めを容易且つ確実に行える。 According to the above configuration, the outer peripheral surface of the polygonal insertion convex portion and the inner peripheral surface of the polygonal crushing member accommodating recess are in surface contact with each other on opposite surfaces, so that centrifugal force and collision energy of the object to be processed are in contact with each other. Can be effectively received, and positioning can be performed easily and reliably.

第３の発明では、第１又は第２の発明において、
上記粉砕部材は、上記雌ネジ部を有する焼結体よりなる。 In the third invention, in the first or second invention,
The crushing member is made of a sintered body having the female screw portion.

上記の構成によると、雌ネジ部も焼結時に形成できるので、機械加工が全く不要な粉砕部材を構成できる。 According to the above configuration, since the female screw portion can also be formed at the time of sintering, it is possible to construct a pulverized member that does not require machining at all.

以上説明したように、本発明によれば、粉砕部材の挿入用凸部をロータ表面の粉砕部材収容凹部に挿入した状態でロータの裏面から締結用ボルトによって締結するようにしたことにより、粉砕部材の機械加工の手間を省いて締結用ボルトに加わる荷重をできるだけ低減することができる。 As described above, according to the present invention, the crushing member is fastened from the back surface of the rotor with a fastening bolt in a state where the convex portion for inserting the crushing member is inserted into the crushing member accommodating recess on the surface of the rotor. It is possible to reduce the load applied to the fastening bolt as much as possible by eliminating the labor of machining.

図４のＩ部拡大断面図である。It is an enlarged sectional view of the part I of FIG. 粉砕装置を含む粉砕システムの概略を示す概要図である。It is a schematic diagram which shows the outline of the crushing system including the crushing apparatus. 粉砕装置を示す斜視図である。It is a perspective view which shows the crushing apparatus. 粉砕装置を示す断面図である。It is sectional drawing which shows the crushing apparatus. 粉砕部材が取り付けられたロータを示す平面図である。It is a top view which shows the rotor which attached the crushing member. 本発明の実施形態に係る粉砕部材を下方から見た斜視図である。It is a perspective view which looked at the crushing member which concerns on embodiment of this invention from the bottom. 本発明の実施形態に係る粉砕部材を上方から見た斜視図である。It is a perspective view which looked at the crushing member which concerns on embodiment of this invention from above. 本発明の実施形態の変形例１に係る粉砕部材を下方から見た斜視図である。It is a perspective view which looked at the crushing member which concerns on the modification 1 of the Embodiment of this invention from the bottom. 本発明の実施形態の変形例１に係る粉砕部材を上方から見た斜視図である。It is a perspective view which looked at the crushing member which concerns on the modification 1 of the Embodiment of this invention from above. 本発明の実施形態の変形例２に係る粉砕部材を示す平面図である。It is a top view which shows the crushing member which concerns on the modification 2 of the Embodiment of this invention. 本発明の実施形態の変形例２に係る粉砕部材を示す側面図である。It is a side view which shows the crushing member which concerns on the modification 2 of the Embodiment of this invention. 本発明の実施形態の変形例２に係る粉砕部材を示す底面図である。It is a bottom view which shows the crushing member which concerns on the modification 2 of the Embodiment of this invention. 従来例に係る粉砕部材を下方から見た斜視図である。It is a perspective view which looked at the crushing member which concerns on a prior art example from below. 従来例に係る粉砕部材を上方から見た斜視図である。It is a perspective view which looked at the crushing member which concerns on a prior art example from above.

以下、本発明の実施形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

－粉砕システムの構成－
図２は本発明の実施形態の粉砕装置１を含む粉砕システム１０を示し、この粉砕システム１０は、粉砕装置１に原料を供給する供給機２を備えている。供給機２から供給される被処理物としての原料は、供給用ロータリバルブ３を介して粉砕装置１の投入口１１ａに供給されるようになっている。被処理物としては一般的な材料が使用できるが、リチウムイオン電池材料（正極材・負極材）、ＰＣ、ＰＥＴ、フェノール樹脂等の樹脂全般、金属、食品、医薬品、石灰石、タルク、石炭等の無機鉱物材料が適している。粉砕装置１で粉砕された製品は、バグフィルタ４に供給され、バグフィルタ４の下端に貯留された粉砕製品は、バグフィルタ用ロータリバルブ５を開いて取り出すことができるようになっている。バグフィルタ４の下流側には、排気ファン６が接続され、粉砕システム１０内の空気が大気中に排出されるようになっている。粉砕装置１の下側には、駆動部７が設けられている。 -Structure of crushing system-
FIG. 2 shows a crushing system 10 including a crushing device 1 according to an embodiment of the present invention, and the crushing system 10 includes a feeder 2 for supplying a raw material to the crushing device 1. The raw material as the object to be processed supplied from the feeder 2 is supplied to the input port 11a of the crushing device 1 via the rotary valve 3 for supply. Although general materials can be used as the object to be treated, lithium ion battery materials (positive electrode material / negative electrode material), general resins such as PC, PET, and phenolic resin, metals, foods, pharmaceuticals, limestone, talc, coal, etc. Inorganic mineral materials are suitable. The product crushed by the crushing device 1 is supplied to the bag filter 4, and the crushed product stored in the lower end of the bag filter 4 can be taken out by opening the rotary valve 5 for the bag filter. An exhaust fan 6 is connected to the downstream side of the bag filter 4 so that the air in the crushing system 10 is discharged to the atmosphere. A drive unit 7 is provided on the lower side of the crusher 1.

図２～図４に示すように、粉砕装置１は、被処理物を投入する粉砕室１１を備え、この粉砕室１１の下部でロータ１２が回転するようになっている。ロータ１２は、粉砕室１１の下方に設けた駆動部７で駆動されるようになっている。詳細は図示しないが、電動モータ１３の動力を用いてロータ１２が回転されるようになっている。 As shown in FIGS. 2 to 4, the crushing device 1 includes a crushing chamber 11 for charging an object to be processed, and the rotor 12 rotates in the lower portion of the crushing chamber 11. The rotor 12 is driven by a drive unit 7 provided below the crushing chamber 11. Although details are not shown, the rotor 12 is rotated by the power of the electric motor 13.

粉砕室１１は円筒状の本体ケーシング１ａ内に形成され、上部に被処理物の投入口１１ａ、下部に風取り込み口１１ｂがそれぞれ形成され、上端が開放されている。上端には、例えば電動モータで駆動される分級機１４が連結されている。投入口１１ａは少なくともロータ１２よりも上部に位置し、適当な投入角を有する。風取り込み口１１ｂは、例えば、粉砕室１１の接線方向に、中心軸に対称に２箇所形成されている。さらに、風取り込み口１１ｂからの気流は、所定の通路を通過した後、ロータ１２と隔壁との間を通って粉砕室１１へ向かい、被処理物を舞い上げながら上方の分級機１４へと向かうようになっている。なお、風取り込み口１１ｂは１箇所でもよく、必ずしも接線方向に形成する必要もない。 The crushing chamber 11 is formed in a cylindrical main body casing 1a, and an input port 11a for the object to be processed is formed in the upper part and an air intake port 11b is formed in the lower part, respectively, and the upper end is open. For example, a classifier 14 driven by an electric motor is connected to the upper end. The loading port 11a is located at least above the rotor 12 and has an appropriate loading angle. The wind intake port 11b is formed at two locations symmetrically with respect to the central axis, for example, in the tangential direction of the crushing chamber 11. Further, the airflow from the wind intake port 11b passes through a predetermined passage, passes between the rotor 12 and the partition wall, heads for the crushing chamber 11, and heads for the upper classifier 14 while flying up the object to be processed. It has become like. The wind intake port 11b may be provided at only one place, and it is not always necessary to form the wind intake port 11b in the tangential direction.

そして、詳細は図示しないが、粉砕室１１の内周面には、円筒状の粉砕用ライナ１５が固定されている。一方、ロータ１２の円周部には、先端が粉砕用ライナ１５に近接するように、複数の粉砕部材２０が取り付けられている。 Although not shown in detail, a cylindrical crushing liner 15 is fixed to the inner peripheral surface of the crushing chamber 11. On the other hand, a plurality of crushing members 20 are attached to the circumferential portion of the rotor 12 so that the tip thereof is close to the crushing liner 15.

具体的には図１及び図５に拡大して示すように、ロータ１２の表面には、周方向に間隔を空けて粉砕部材２０を固定するための粉砕部材収容凹部１６が形成されている。この粉砕部材収容凹部１６は、後述する挿入用凸部２１に対応した平面視多角形状、具体的には、平面視四角形状に凹陥されている。粉砕部材収容凹部１６の略中央には、締結用ボルト２３が挿通されるボルト用貫通孔１６ａが形成されている。 Specifically, as shown in an enlarged manner in FIGS. 1 and 5, a crushing member accommodating recess 16 for fixing the crushing member 20 at intervals in the circumferential direction is formed on the surface of the rotor 12. The crushing member accommodating recess 16 is recessed into a polygonal shape in a plan view corresponding to the convex portion 21 for insertion described later, specifically, a quadrangular shape in a plan view. A bolt through hole 16a through which the fastening bolt 23 is inserted is formed substantially in the center of the crushing member accommodating recess 16.

一方、図６Ａ及び図６Ｂに示すように、粉砕部材２０は、粉砕部材収容凹部１６に挿入されると共に、締結用ボルト２３が締結される雌ネジ部２１ａが形成された挿入用凸部２１を備えている。挿入用凸部２１は、平面視多角形状、具体的には平面視四角形状で角部に若干丸みを帯びた四角柱状である。挿入用凸部２１及び粉砕部材収容凹部１６は、平面視多角形状であれば、これに限定されない。 On the other hand, as shown in FIGS. 6A and 6B, the crushing member 20 is inserted into the crushing member accommodating recess 16 and has an insertion convex portion 21 in which a female screw portion 21a to which the fastening bolt 23 is fastened is formed. I have. The convex portion 21 for insertion is a polygonal shape in a plan view, specifically, a quadrangular columnar shape having a rectangular shape in a plan view and slightly rounded corners. The insertion convex portion 21 and the crushing member accommodating concave portion 16 are not limited to this as long as they have a polygonal shape in a plan view.

上記挿入用凸部２１には、被処理物に衝突して被処理物を粉砕する粉砕部２２が一体に形成されている。本実施形態では、粉砕部２２は、一部先端が尖った平面視台形状である。 The insertion convex portion 21 is integrally formed with a crushing portion 22 that collides with the object to be processed and crushes the object to be processed. In the present embodiment, the crushing portion 22 has a planar viewing table shape with a partially pointed tip.

そして、粉砕部材２０は、挿入用凸部２１が粉砕部材収容凹部１６に挿入された状態で、ロータ１２の裏面から締結用ボルト２３によって締結されるようになっている。 The crushing member 20 is fastened from the back surface of the rotor 12 by the fastening bolt 23 in a state where the insertion convex portion 21 is inserted into the crushing member accommodating recess 16.

粉砕部材２０は、例えば、雌ネジ部２１ａを有する焼結体よりなり、この雌ネジ部２１ａは焼結時に一体に形成されている。例えば、タングステンカーバイト（ＷＣ）の微粒を金属、コバルトなどの金属触媒を使用して、粉末冶金法で高温高圧条件下で一体焼結したものよりなる。このため、機械加工が全く不要な粉砕部材２０も構成できる。なお、粉砕部材２０は、セラミック（アルミナ・窒化ケイ素・ジルコニア）で構成してもよい。 The crushing member 20 is made of, for example, a sintered body having a female screw portion 21a, and the female screw portion 21a is integrally formed at the time of sintering. For example, it is composed of fine particles of tungsten carbide (WC) integrally sintered under high temperature and high pressure conditions by a powder metallurgy method using a metal catalyst such as metal or cobalt. Therefore, the crushing member 20 that does not require any machining can be configured. The crushing member 20 may be made of ceramic (alumina, silicon nitride, zirconia).

－粉砕システムの作動－
このように構成した粉砕システム１０では、供給機２に投入された被処理物は、供給機２より粉砕室１１上部の投入口１１ａへ投入され、ロータ１２上へ落下する。 -Operation of crushing system-
In the crushing system 10 configured in this way, the object to be charged into the feeder 2 is charged from the feeder 2 into the charging port 11a at the upper part of the crushing chamber 11 and falls onto the rotor 12.

次いで、被処理物は、遠心力で半径方向外側へと運ばれた後、回転する粉砕部２２と衝突し、又は粉砕部２２と粉砕用ライナ１５との間で粉砕される。 Next, the object to be processed is carried outward in the radial direction by centrifugal force, and then collides with the rotating crushing portion 22, or is crushed between the crushing portion 22 and the crushing liner 15.

次いで、被処理物は、粉砕室１１の下部の風取り込み口１１ｂからの気流によって粉砕室１１上方の分級機１４へと搬送される。この分級機１４では、所定の大きさの被処理物のみが通過し、排出口１１ｃから排出される。粉砕が充分でない被処理物は自重により粉砕室１１へ落下して、再度粉砕される。 Next, the object to be processed is conveyed to the classifier 14 above the crushing chamber 11 by the air flow from the wind intake port 11b at the lower part of the crushing chamber 11. In the rating machine 14, only the object to be processed having a predetermined size passes through and is discharged from the discharge port 11c. The object to be crushed is dropped into the crushing chamber 11 by its own weight and crushed again.

次いで、粉砕装置１で粉砕された製品は、バグフィルタ４に供給され、バグフィルタ４の下端に粉砕製品が貯留される。そして、バグフィルタ用ロータリバルブ５を開いて粉砕製品を取り出す。 Next, the product crushed by the crushing device 1 is supplied to the bag filter 4, and the crushed product is stored in the lower end of the bag filter 4. Then, the rotary valve 5 for the bug filter is opened and the crushed product is taken out.

本実施形態では、雌ネジ部２１ａが形成された粉砕部材２０の挿入用凸部２１をロータ１２の表面に形成した粉砕部材収容凹部１６に挿入した状態で、ロータ１２の裏面から締結用ボルト２３で締結するようにしているので、締結用ボルト２３に被処理物が衝突することはなく、また、粉砕部材収容凹部１６の内周面と、挿入用凸部２１の外周面とが面接触するので、遠心力や被処理物の衝突エネルギーを、これらの面で受けることができ、締結用ボルト２３に加わる荷重が極めて効果的に低減される。 In the present embodiment, the fastening bolt 23 is inserted from the back surface of the rotor 12 in a state where the insertion convex portion 21 of the crushing member 20 on which the female screw portion 21a is formed is inserted into the crushing member accommodating recess 16 formed on the surface of the rotor 12. Since the fastening is performed with, the object to be processed does not collide with the fastening bolt 23, and the inner peripheral surface of the crushing member accommodating recess 16 and the outer peripheral surface of the insertion convex portion 21 come into surface contact with each other. Therefore, the centrifugal force and the collision energy of the object to be processed can be received on these surfaces, and the load applied to the fastening bolt 23 is extremely effectively reduced.

また、挿入用凸部２１と粉砕部材収容凹部１６との嵌め込み構造であるので、図９Ａ及び図９Ｂで示す、従来のような位置決めピンと位置決め用凹部３１６による位置決めが不要となり、位置決め用凹部３１６の形成のための機械加工が不要となる。 Further, since the insertion convex portion 21 and the crushing member accommodating recess 16 are fitted into each other, positioning by the conventional positioning pin and positioning recess 316 shown in FIGS. 9A and 9B becomes unnecessary, and the positioning recess 316 does not need to be positioned. No machining is required for formation.

さらに、締結用ボルト２３はロータ１２の裏面側から締結されるので、粉砕部材２０に図９Ｂに示すようなザグリ部３２２ａを設ける必要がなく、その分だけ粉砕部材２０の厚みを確保しやすくなり、耐久性が向上する。 Further, since the fastening bolt 23 is fastened from the back surface side of the rotor 12, it is not necessary to provide the counterbore portion 322a as shown in FIG. 9B on the crushing member 20, and it becomes easier to secure the thickness of the crushing member 20 by that amount. , Durability is improved.

また本実施形態では、多角形状の挿入用凸部２１の外周面と、多角形状の粉砕部材収容凹部１６の内周面とがそれぞれ対向する面で面接触するので、さらに遠心力や被処理物の衝突エネルギーを効果的に受けることができると共に、位置決めを容易且つ確実に行える。 Further, in the present embodiment, the outer peripheral surface of the polygonal insertion convex portion 21 and the inner peripheral surface of the polygonal crushing member accommodating recess 16 are in surface contact with each other on opposite surfaces, so that further centrifugal force and an object to be processed are further contacted. The collision energy of the above can be effectively received, and positioning can be easily and surely performed.

したがって、本実施形態によると、粉砕部材２０の挿入用凸部２１をロータ１２表面の粉砕部材収容凹部１６に挿入した状態でロータ１２の裏面から締結用ボルト２３によって締結するようにしたことにより、粉砕部材２０の機械加工の手間を省いて締結用ボルト２３に加わる荷重をできるだけ低減することができる。 Therefore, according to the present embodiment, the insertion convex portion 21 of the crushing member 20 is fastened from the back surface of the rotor 12 with the fastening bolt 23 in a state of being inserted into the crushing member accommodating recess 16 on the surface of the rotor 12. The load applied to the fastening bolt 23 can be reduced as much as possible by eliminating the labor of machining the crushing member 20.

－変形例１－
図７Ａ及び図７Ｂは本発明の実施形態の変形例１を示し、粉砕部材１２０の形状が異なる点で上記実施形態と異なる。なお、以下の各変形例では、図１～図６Ｂと同じ部分については同じ符号を付してその詳細な説明は省略する。 -Modification example 1-
7A and 7B show a modification 1 of the embodiment of the present invention, which is different from the above embodiment in that the shape of the crushing member 120 is different. In each of the following modifications, the same parts as those in FIGS. 1 to 6B are designated by the same reference numerals, and detailed description thereof will be omitted.

具体的には、本変形例の粉砕部材１２０は、上記実施形態と同様の挿入用凸部２１及び雌ネジ部２１ａを有するが、粉砕部１２２の形状が異なる。 Specifically, the crushing member 120 of this modification has the same insertion convex portion 21 and female screw portion 21a as in the above embodiment, but the shape of the crushing portion 122 is different.

本変形例の粉砕部１２２は、台形部１２２ａと起立部１２２ｂとを有し、断面Ｌ字状となっている。起立部１２２ｂを設けることで、被処理物の衝突エネルギーが大きくなるが、多角形状の挿入用凸部２１の外周面と、多角形状の粉砕部材収容凹部１６の内周面とがそれぞれ対向する面で面接触するので、さらに遠心力や被処理物の衝突エネルギーを効果的に受けることができる。本変形例でも上記実施形態と同様の作用効果が得られる。 The crushed portion 122 of this modification has a trapezoidal portion 122a and an upright portion 122b, and has an L-shaped cross section. By providing the upright portion 122b, the collision energy of the object to be processed increases, but the outer peripheral surface of the polygonal insertion convex portion 21 and the inner peripheral surface of the polygonal crushing member accommodating recess 16 are respectively . Since the surfaces are in surface contact with each other, the centrifugal force and the collision energy of the object to be processed can be effectively received . Even in this modification, the same effect as that of the above embodiment can be obtained.

－変形例２－
図８Ａ及び図８Ｂは本発明の実施形態の変形例２を示し、粉砕部材２２０の形状が異なる点で上記実施形態と異なる。 -Modification example 2-
8A and 8B show a modification 2 of the embodiment of the present invention, which is different from the above embodiment in that the shape of the crushing member 220 is different.

具体的には、本変形例の粉砕部材２２０は、上記実施形態と同様の挿入用凸部２１及び雌ネジ部２１ａを有するが、粉砕部２２２の形状が異なる。 Specifically, the crushing member 220 of this modification has the same insertion convex portion 21 and female screw portion 21a as in the above embodiment, but the shape of the crushing portion 222 is different.

本変形例の粉砕部２２２は、円板部２２２ａと円柱部２２２ｂとを有し、円柱部２２２ｂは、挿入用凸部２１と同心である。従来のように上方から締結用ボルト２３を挿入するようにすると、円柱部２２２ｂの肉厚が大きくなってしまうが、本変形例では円柱部２２２ｂのほとんどを中実に構成できるので、耐久性が格段に向上している。 The crushed portion 222 of this modification has a disk portion 222a and a cylindrical portion 222b, and the cylindrical portion 222b is concentric with the insertion convex portion 21. If the fastening bolt 23 is inserted from above as in the conventional case, the wall thickness of the cylindrical portion 222b becomes large, but in this modified example, most of the cylindrical portion 222b can be configured solidly, so that the durability is remarkably improved. Has improved.

本変形例でも上記実施形態と同様の作用効果が得られる。 Even in this modification, the same effect as that of the above embodiment can be obtained.

（その他の実施形態）
本発明は、上記実施形態について、以下のような構成としてもよい。 (Other embodiments)
The present invention may have the following configurations with respect to the above embodiment.

すなわち、上記実施形態では、粉砕部２２は、平面視台形状としたが、他の多角形状でもよい。 That is, in the above embodiment, the crushing portion 22 has a plan view table shape, but may have another polygonal shape.

また、上記実施形態では、電動モータに駆動される分級機１４を設け、電動モータの回転数によって分級する粒度を調整するようにしたが、動力を使わないで流入する風速を調整することにより、粒度を調整するサイクロン式分級機としてもよい。また、分級機１４は必ずしも必要ではなく、設けない場合には、粉砕室１１の上部に排出口１１ｃを設ければよい。 Further, in the above embodiment, the classifier 14 driven by the electric motor is provided and the particle size for classifying is adjusted according to the rotation speed of the electric motor. However, by adjusting the inflowing wind speed without using power, It may be a cyclone type classifier that adjusts the particle size. Further, the classifier 14 is not always necessary, and if it is not provided, a discharge port 11c may be provided in the upper part of the crushing chamber 11.

なお、以上の実施形態は、本質的に好ましい例示であって、本発明、その適用物や用途の範囲を制限することを意図するものではない。 It should be noted that the above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications and uses.

１粉砕装置
１ａ本体ケーシング
２供給機
３供給用ロータリバルブ
４バグフィルタ
５バグフィルタ用ロータリバルブ
６排気ファン
７駆動部
１０粉砕システム
１１粉砕室
１１ａ投入口
１１ｂ風取り込み口
１１ｃ排出口
１２ロータ
１３電動モータ
１４分級機
１５粉砕用ライナ
１６粉砕部材収容凹部
１６ａボルト用貫通孔
２０粉砕部材
２１挿入用凸部
２１ａ雌ネジ部
２２粉砕部
２３締結用ボルト
１２０粉砕部材
１２１締結用ボルト挿通孔
１２２粉砕部
１２２ａ台形部
１２２ｂ起立部
２２０粉砕部材
２２２粉砕部
２２２ａ円板部
２２２ｂ円柱部 1 Crusher
1a Main body casing
2 Feeder
3 Rotary valve for supply
4 Bug filter
5 Rotary valve for bug filter
6 Exhaust fan
7 Drive unit
10 Crushing system
11 Crushing room
11a Input port
11b Wind intake
11c outlet
12 rotor
13 Electric motor
14-class machine
15 Liner for crushing
16 Crushing member accommodating recess
Through hole for 16a bolt
20 Crushing member
21 Convex part for insertion
21a Female thread part
22 Crushing part
23 Fastening bolts
120 crushing member
121 Fastening bolt insertion hole
122 Crushing part
122a Trapezoidal part
122b Standing part
220 Crushing member
222 Crushing part
222a disk part
222b Cylindrical part

Claims

粉砕室内で回転する円板状のロータの周縁に配置した粉砕部材によって被処理物に衝撃を加えて粉砕する粉砕装置において、
上記ロータの表面には、周方向に間隔を空けて上記粉砕部材を固定するための粉砕部材収容凹部が形成され、
上記粉砕部材は、
上記粉砕部材収容凹部に挿入されると共に、締結用ボルトが締結される雌ネジ部が形成された挿入用凸部と、
上記挿入用凸部に連続し、上記被処理物に衝突して該被処理物を粉砕する粉砕部とが一体に形成されており、
上記挿入用凸部が上記粉砕部材収容凹部に挿入された状態で、上記ロータの裏面から上記締結用ボルトによって締結可能に構成され、
上記挿入用凸部は、平面視多角形状であり、
上記粉砕部材収容凹部も上記挿入用凸部に対応した平面視多角形状であり、
上記粉砕部は、台形部と該台形部から立ち上がる起立部とを有し、該起立部が受ける被処理物の衝突エネルギーを上記挿入用凸部及び上記粉砕部材収容凹部のそれぞれ対向する面で受けるように構成されている
ことを特徴とする粉砕装置。 In a crushing device that crushes an object to be processed by applying an impact with a crushing member arranged on the periphery of a disk-shaped rotor that rotates in a crushing chamber.
On the surface of the rotor, crushing member accommodating recesses for fixing the crushing member at intervals in the circumferential direction are formed.
The above crushing member
An insertion convex portion that is inserted into the crushing member accommodating recess and has a female screw portion to which a fastening bolt is fastened.
A crushing portion that is continuous with the insertion convex portion and collides with the object to be processed to crush the object to be processed is integrally formed.
With the insertion convex portion inserted into the crushing member accommodating recess, the rotor can be fastened from the back surface by the fastening bolt.
The above-mentioned convex portion for insertion has a polygonal shape in a plan view, and has a polygonal shape.
The crushing member accommodating recess also has a polygonal shape in a plan view corresponding to the insertion convex portion.
The crushing portion has a trapezoidal portion and an upright portion rising from the trapezoidal portion, and receives the collision energy of the object to be processed received by the upright portion on the opposite surfaces of the insertion convex portion and the crushing member accommodating concave portion. Is configured to
A crushing device characterized by that.

粉砕室内で回転する円板状のロータの周縁に配置した粉砕部材によって被処理物に衝撃を加えて粉砕する粉砕装置において、In a crushing device that crushes an object to be processed by applying an impact with a crushing member arranged on the periphery of a disk-shaped rotor that rotates in a crushing chamber.
上記ロータの表面には、周方向に間隔を空けて上記粉砕部材を固定するための粉砕部材収容凹部が形成され、On the surface of the rotor, crushing member accommodating recesses for fixing the crushing member at intervals in the circumferential direction are formed.
上記粉砕部材は、The above crushing member
上記粉砕部材収容凹部に挿入されると共に、締結用ボルトが締結される雌ネジ部が形成された挿入用凸部と、An insertion convex portion that is inserted into the crushing member accommodating recess and has a female screw portion to which a fastening bolt is fastened.
上記挿入用凸部に連続し、上記被処理物に衝突して該被処理物を粉砕する粉砕部とが一体に形成されており、A crushing portion that is continuous with the insertion convex portion and collides with the object to be processed to crush the object to be processed is integrally formed.
上記挿入用凸部が上記粉砕部材収容凹部に挿入された状態で、上記ロータの裏面から上記締結用ボルトによって締結可能に構成され、With the insertion convex portion inserted into the crushing member accommodating recess, the rotor can be fastened from the back surface by the fastening bolt.
上記粉砕部は、上記挿入用凸部に連続する円板部と、該挿入用凸部と同心の円柱部とを有し、該挿入用凸部に直接雌ネジ部が設けられているThe crushing portion has a disk portion continuous with the insertion convex portion and a cylindrical portion concentric with the insertion convex portion, and the female screw portion is directly provided on the insertion convex portion.
ことを特徴とする粉砕装置。A crushing device characterized by that.

請求項１又は２に記載の粉砕装置において、
上記粉砕部材は、上記雌ネジ部が機械加工することなく焼結時に一体に形成された焼結体よりなる
ことを特徴とする粉砕装置。 In the crushing apparatus according to claim 1 or 2.
The crushing member is a crushing apparatus in which the female screw portion is made of a sintered body integrally formed at the time of sintering without machining .