JP2001046904A - Grinding part structure of grinding device - Google Patents
Grinding part structure of grinding deviceInfo
- Publication number
- JP2001046904A JP2001046904A JP11225147A JP22514799A JP2001046904A JP 2001046904 A JP2001046904 A JP 2001046904A JP 11225147 A JP11225147 A JP 11225147A JP 22514799 A JP22514799 A JP 22514799A JP 2001046904 A JP2001046904 A JP 2001046904A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- housing
- peripheral surface
- crushing
- inner peripheral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
Description
【０００１】本発明は、被処理物（原料）を擂り潰しに
よって擂潰する擂潰装置の擂潰部の構造に関するもので
ある。[0001] The present invention relates to the structure of a crushing portion of a crushing device for crushing an object to be treated (raw material) by crushing.
【０００２】[0002]
【従来の技術】本出願人は、擂潰装置に関する発明とし
て特願平１０―３８１６０号を出願しており、この出願
は、排出物の形状を縄様形状から粒体の状態および／又
は粉体の状態に変えて排出するための工夫にある。この
擂潰装置の擂潰部は、供給された原料をロータの捩れ角
を有する翼とハウジング内周面の刃との間で擂り潰す作
用を与えるものであり、排出口の近傍にハウジングとの
間に間隔Ｈを構成する構造の調整手段を備えるものであ
った。この為特に、原料が硬い珪酸質を含む籾殻などで
ある場合にはロータの外周面およびハウジングの内周面
の摩耗が激しく、両者の表面には摩耗を防止するための
表面処理が施されていた。表面処理を施工したままの状
態で使用していた従来においては、特に初期段階におい
て次のような不具合が発生した。この装置によって、原
料（籾殻）の細粒粉（１.２mmの網目のふるいを７０％
〜８０％以上が通過する粒度）を製造しようとすると、
モータが定格電流を超えることがあり、最悪の場合には
ロータとハウジングの間に原料が詰り込んでしまい動か
なくなることも起こっていた。本出願人はこの原因につ
いて調査した結果次のことが解ったのである。それは、
粒度の調整が、調整手段によって行なわれ、間隔Ｈを変
え排出量の制御を行なうことによってなされる為に、擂
潰部への原料の送り込み量および擂潰部での滑動量と、
排出口における排出量が調和しないと上述した不都合が
起こることに気づいたのである。その中でも特に、ロー
タおよびハウジングの摩擦係数が大きな役割を持つこと
が実験の結果から解明されたのである。2. Description of the Related Art The present applicant has filed an application related to Japanese Patent Application No. 10-38160 as an invention relating to a crushing device. It is ingenuity to change and discharge the body. The crushing portion of the crushing device has a function of crushing the supplied raw material between the blade having the twist angle of the rotor and the blade on the inner peripheral surface of the housing. The apparatus had an adjusting means having a structure in which an interval H was formed therebetween. Therefore, especially when the raw material is rice hulls containing hard siliceous material, the outer peripheral surface of the rotor and the inner peripheral surface of the housing are severely worn, and both surfaces are subjected to a surface treatment to prevent abrasion. Was. In the prior art, which has been used in a state in which the surface treatment has been applied, the following problems have occurred particularly in the initial stage. By this equipment, 70% of fine powder (1.2 mm mesh sieve) of raw material (rice husk)
~ 80% or more particle size)
In some cases, the motor may exceed the rated current, and in the worst case, the raw material may be clogged between the rotor and the housing and become inoperable. The present applicant has investigated the cause and found the following. that is,
Since the adjustment of the particle size is performed by the adjusting means and by controlling the discharge amount by changing the interval H, the feed amount of the raw material to the crushing portion and the sliding amount in the crushing portion,
He noticed that the inconvenience described above would occur if the emissions at the outlet were not harmonized. Among them, it was clarified from the results of experiments that the friction coefficient of the rotor and the housing has a particularly large role.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、原料とハウ
ジング内周面との摩擦係数および原料とロータ外周面と
の摩擦係数に着眼し、供給した原料をスムーズに排出口
へ滑動させる工夫により、初期トラブルを解消すると共
に細粒粉を安定して製造することを目的とする。SUMMARY OF THE INVENTION The present invention focuses on the coefficient of friction between the raw material and the inner peripheral surface of the housing and the coefficient of friction between the raw material and the outer peripheral surface of the rotor. Another object of the present invention is to eliminate initial troubles and stably produce fine powder.
【０００４】[0004]
【課題を解決するための手段】本発明は、螺旋形状で且
つ所定の捩れ角を有する翼を備えた回転するロータ及び
該ロータを取囲むと共に内周面に刃を備えた固定して設
置されるハウジング並びに該ハウジングと前記ロータと
が共に原料の供給側を大径に成して漸減させ該小径側へ
処理物排出用の排出口を備えて成る構造の擂潰手段と、
該排出口近傍に備え且つロータ及びハウジングの共通軸
線上に於けるロータ側へ付設すると共に該突出部分の端
面とハウジング内周面との間に間隔Ｈを構成する構造の
調整手段とを備える擂潰装置の擂潰部であって、前記ハ
ウジング内周面の摩擦係数がロータ外周面の摩擦係数よ
り小さく形成されていることにある。この作用を説明す
ると、大径側から供給された原料は、回転するロータに
よってロータの翼の表面およびハウジング内周面を滑り
ながら過密化されて小径側へ向う指向方向へ向けて螺旋
移動する。この際、原料とハウジング内周面との摩擦係
数が原料とロータ外周面との摩擦係数よりも小さくなる
ように形成された擂潰部構造は、過密化されてハウジン
グの内周面に押圧された原料がハウジングの内周面を滑
る滑り速度を増大し、ロータの翼の表面を滑りながら小
径側へ向う指向方向へ向けて螺旋移動する滑動量を減少
させる。従って、特に原料供給初期の排出口部位の詰り
込みを解消し、同時に粒度の小さい細粒粉の製造を安定
してなすことが可能となる。SUMMARY OF THE INVENTION The present invention is directed to a rotating rotor having a wing having a spiral shape and a predetermined twist angle, and a fixedly mounted rotor surrounding the rotor and having a blade on an inner peripheral surface. Crushing means having a structure comprising a housing having a large diameter on the supply side of the raw material and the housing and the rotor having a large diameter, and a discharge port for discharging the processed material to the small diameter side;
Adjusting means having a structure provided near the discharge port and attached to the rotor side on the common axis of the rotor and the housing, and having a spacing H between the end surface of the protruding portion and the inner peripheral surface of the housing. A crushing portion of the crushing device, wherein a friction coefficient of the inner peripheral surface of the housing is formed to be smaller than a friction coefficient of the outer peripheral surface of the rotor. Explaining this operation, the raw material supplied from the large diameter side is overcrowded while sliding on the surface of the rotor blades and the inner peripheral surface of the housing by the rotating rotor, and spirally moves in the directing direction toward the small diameter side. At this time, the crushed portion structure formed so that the friction coefficient between the raw material and the inner peripheral surface of the housing is smaller than the friction coefficient between the raw material and the outer peripheral surface of the rotor is over-densified and pressed against the inner peripheral surface of the housing. The sliding speed of the raw material sliding on the inner peripheral surface of the housing is increased, and the sliding amount of the raw material spirally moving in the directing direction toward the small diameter side while sliding on the surface of the rotor blade is reduced. Therefore, it is possible to eliminate the clogging of the outlet portion particularly at the initial stage of raw material supply, and at the same time, to stably produce fine-grained powder having a small particle size.
【０００５】[0005]
【発明の実施の形態】本発明の実施の形態は、ハウジン
グの内周面とロータの外周面との摩擦係数の調整によっ
て細粒粉を安定して製造する装置であって、肝要な点
は、ハウジングの内周面の摩擦係数をロータの摩擦係数
より小さくすることである。さらに、摩擦係数に相当す
るものとして、面粗さ、表面処理材質の違いによる実施
例を以下に示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention relates to an apparatus for stably producing fine powder by adjusting a friction coefficient between an inner peripheral surface of a housing and an outer peripheral surface of a rotor. Another object is to make the friction coefficient of the inner peripheral surface of the housing smaller than the friction coefficient of the rotor. Further, as examples corresponding to the friction coefficient, examples according to differences in surface roughness and surface treatment material will be described below.
【０００６】[0006]
【実施例１】第一実施例として、ロータおよびハウジン
グの表面処理として非常に硬く耐摩耗性に優れるWc(タ
ングステンカーバイト)サーメットを高速フレーム溶射
にて溶射する場合を説明する。図１は擂潰装置の擂潰部
を示す断面図であり、図２はロータとハウジングの斜視
図である。それぞれ３個のロータ１の外周面４、ハウジ
ング２の内周面５に溶射を行う。一般的にWcサーメット
を溶射したそのままの状態の面粗さ（mRaで表す）は、
前工程の粗面化処理を含め数十μmRa以上であり、表１
は、溶射した表面を各々の面粗さに研摩により調整した
ものである。First Embodiment As a first embodiment, a case where Wc (tungsten carbide) cermet which is very hard and has excellent wear resistance is sprayed by high-speed flame spraying as a surface treatment of a rotor and a housing will be described. FIG. 1 is a sectional view showing a crushing portion of the crushing device, and FIG. 2 is a perspective view of a rotor and a housing. Thermal spraying is performed on the outer peripheral surface 4 of each of the three rotors 1 and the inner peripheral surface 5 of the housing 2. Generally, the surface roughness (expressed in mRa) of a sprayed Wc cermet as it is,
It is several tens μmRa or more including the surface roughening treatment in the previous process.
Is obtained by polishing the sprayed surface to each surface roughness by polishing.
【０００７】[0007]
【表１】 [Table 1]
【０００８】３個のロータ（NO１〜NO３）は、No.１の
面粗さを３.３μmRa、No.２は２.９μmRa、No.３は０.
８μmRaになされ、これに対するハウジング（No.４〜N
o.６）は、No.４の面粗さを３.６μmRa、No.５は２.４
μmRa、No.６は１.４μmRaになされている。これら３個
の面粗さの異なるロータおよびハウジングを９通りに組
合せて調整手段３を操作して、原料である籾殻を粉砕
し、どの程度の粒度まで細粒粉が製造できるかテストを
行なった。表２に製造された粒度を示す。尚、粒度は、
１.２mmの網目のふるいを通過した粉の割合（％）で示
してある。また、表２において、（ ）内の数値は、ロ
ータとハウジングの組合せによる面粗さの差を表し、ハ
ウジング側の面粗さが小さい場合をプラス、ロータ側の
面粗さが小さい場合をマイナスとするものである。The three rotors (NO1 to NO3) have No. 1 surface roughness of 3.3 μmRa, No. 2 has 2.9 μmRa, and No. 3 has a surface roughness of 0.3 μmRa.
8 μmRa, and the housing (No. 4 to N
o.6) has a surface roughness of No. 4 of 3.6 μmRa and No. 5 has a surface roughness of 2.4 μm.
μmRa, No. 6, is 1.4 μmRa. By operating the adjusting means 3 by combining these three rotors and housings having different surface roughnesses in nine ways, the raw material hulls were pulverized, and a test was conducted to determine the particle size to which fine particles can be produced. . Table 2 shows the particle sizes produced. The particle size is
It is shown as the percentage (%) of the powder that has passed through a 1.2 mm mesh sieve. In Table 2, the numerical values in parentheses indicate differences in surface roughness due to the combination of the rotor and the housing. Positive values are given when the surface roughness on the housing side is small, and negative values when the surface roughness on the rotor side is small. It is assumed that.
【０００９】[0009]
【表２】 [Table 2]
【００１０】次に、表１、表２を基にして、横軸にハウ
ジングとロータの面粗さの差（ハウジング側の面粗さが
小さい場合をプラス、ロータ側の面粗さが小さい場合を
マイナスとする）を、縦軸に粒度を示したものが図３で
ある。この図３によると、ハウジングとロータの面粗さ
の差がない状態を中心にして、ハウジングの面粗さがロ
ータの面粗さより小さい場合は粒度が上昇し、大きい場
合は粒度が下降していることが解る。ここで擂り潰しの
作用を考えてみると、籾殻は、ロータ１の回転によって
排出口６に向けて押し込まれながら、ハウジングの内周
面５との間で排出口６に近づくにつれて圧縮されて擂り
潰され、ハウジングの内周面５を滑りながら、調整手段
３の隙間Ｈを通って排出口６から排出される。この一連
の作用は主に原料と各部品との摩擦抵抗によるものであ
る。即ち、原料の送り込み量はロータ１が主に支配して
おり、ロータ１の摩擦抵抗が小さくなればロータ１の回
転によって原料の送り込み量は増大する。一方、排出量
はハウジング２の摩擦抵抗が主に支配しており、ハウジ
ングの内周面５の摩擦抵抗が小さくなればロータ１によ
って押し込まれた原料が、ハウジング内周面５に設けら
れた刃７をハウジングの円周方向へ向けて乗り越えてロ
ータ１の回転方向にも流れることから、擂り潰しが増長
され、より粒度の小さい細粒粉を得ることができる。Next, based on Tables 1 and 2, the difference between the surface roughness of the housing and the rotor is plotted on the horizontal axis (plus when the surface roughness on the housing side is small, and when the surface roughness on the rotor side is small). FIG. 3 shows the particle size on the vertical axis. According to FIG. 3, the particle size increases when the surface roughness of the housing is smaller than the surface roughness of the rotor, and decreases when the surface roughness of the housing is smaller than the surface roughness of the rotor. I understand that there is. Considering the action of the crushing, the rice hulls are pressed toward the discharge port 6 by the rotation of the rotor 1 and are compressed as the rice hull approaches the discharge port 6 with the inner peripheral surface 5 of the housing, and are ground. It is squashed and is discharged from the discharge port 6 through the gap H of the adjusting means 3 while sliding on the inner peripheral surface 5 of the housing. This series of actions is mainly due to the frictional resistance between the raw material and each part. That is, the feed amount of the raw material is mainly controlled by the rotor 1. If the frictional resistance of the rotor 1 decreases, the feed amount of the raw material increases by the rotation of the rotor 1. On the other hand, the amount of discharge is mainly governed by the frictional resistance of the housing 2. If the frictional resistance of the inner peripheral surface 5 of the housing decreases, the raw material pushed by the rotor 1 is removed by the blade provided on the inner peripheral surface 5 of the housing. 7 flows in the rotational direction of the rotor 1 over the circumferential direction of the housing, so that the crushing is increased and fine powder having a smaller particle size can be obtained.
【００１１】因みに図３によると、ロータとハウジング
の面粗さがほぼ等しいロータNo.１とハウジングNo.４の
組合せ、同様にNo.2とNo.4、No.３とNo.６においては、
面粗さの差が−0.３〜−0.７となり粒度は約８０〜８２
％である。これ以上粒度を上げようとして調整手段３の
隙間Ｈを絞ると排出口６で詰り込みを起こし装置は停止
してしまうのである。そこで、ロータ１の面粗さよりハ
ウジング２の面粗さを小さくするロータNo.１とハウジ
ングNo.６、同様にNo.２とNo.６、の組合せにすると粒
度が９０〜９５％に上昇するのである。以上のように同
じ材質の表面処理を施す場合のロータ１の表面粗さは、
ハウジング２のそれより粗くすることにより、細粒粉製
造時の詰り込みを防止し、より小さい細粒粉を製造する
ことができる。According to FIG. 3, the combination of the rotor No. 1 and the housing No. 4 having substantially the same surface roughness of the rotor and the housing, and similarly the combination of No. 2 and No. 4 and No. 3 and No. 6 ,
The difference in surface roughness is -0.3 to -0.7, and the particle size is about 80 to 82.
%. If the gap H of the adjusting means 3 is reduced to further increase the particle size, the discharge port 6 is clogged and the apparatus stops. Therefore, when a combination of the rotor No. 1 and the housing No. 6 in which the surface roughness of the housing 2 is made smaller than the surface roughness of the rotor 1 and a combination of the rotors No. 2 and No. 6 similarly, the particle size increases to 90 to 95%. It is. As described above, the surface roughness of the rotor 1 when the surface treatment of the same material is performed is as follows.
By making the housing 2 coarser than that of the housing 2, clogging during the production of fine powder can be prevented, and smaller fine powder can be produced.
【００１２】[0012]
【実施例２】第二実施例として表面処理を行なう材質の
違いによって、摩擦係数を変える場合を示す。それぞれ
２個のロータおよびハウジングに、WcサーメットとNi
（ニッケル）基合金を溶射する。その品名、No.、材質
を表３に示す。Second Embodiment As a second embodiment, a case where the friction coefficient is changed depending on the material to be subjected to the surface treatment will be described. Wc cermet and Ni in each of two rotors and housing
Spray a (nickel) based alloy. Table 3 shows the product name, No. and material.
【００１３】[0013]
【表３】 [Table 3]
【００１４】各々の面粗さは約１.０μmRaに揃えてあ
り、一般的にWcサーメットとNi基合金とでは、その素材
自体の硬さ・性質の違いから、同じ面粗さに仕上げても
Ni基合金の方が摩擦係数は低くなり、Ni基合金の摩擦係
数がWcサーメットの約半分である。各２個の材質の異な
るロータおよびハウジングを４通りに組合せて第一実施
例と同様に調整手段を操作して、原料である籾殻を粉砕
し、どの程度の粒度まで細粒粉が製造できるかテストを
行なった。その結果を表４に示す。The surface roughness of each is set to about 1.0 μmRa. In general, Wc cermet and Ni-based alloy have the same surface roughness due to the difference in hardness and properties of the materials themselves.
The friction coefficient of the Ni-based alloy is lower, and the friction coefficient of the Ni-based alloy is about half that of Wc cermet. By operating the adjusting means in the same manner as in the first embodiment by combining two different rotors and housings of two different materials each other to pulverize the rice hulls as a raw material, to what degree of fine particle powder can be produced? Tested. Table 4 shows the results.
【００１５】[0015]
【表４】 [Table 4]
【００１６】この表４から言えることは、ハウジングの
摩擦係数よりロータの摩擦係数が小さいNo.２とNo.３の
組合せでは粒度の荒い粉（７２％）しかできないが、ハ
ウジングの摩擦係数の小さいNo.１とNo.４の組合せでは
細粒粉（９７％）を安定して製造することができるので
ある。It can be said from Table 4 that the combination of No. 2 and No. 3 in which the rotor friction coefficient is smaller than the housing friction coefficient produces only coarse powder (72%), but the housing has a small friction coefficient. With the combination of No. 1 and No. 4, fine powder (97%) can be produced stably.
【００１７】[0017]
【発明の効果】請求項１によると、擂潰部への原料の送
り込み量および擂潰部での滑動量と、排出口における排
出量が調和され、限られた負荷の中で粒度８０％程度以
上の細粒粉を安定して作成することができるようになっ
た。 また、排出量が先行するようにしているので、多少
の製造上のばらつきが発生しても目詰まりしにくい。According to the first aspect, the feed amount of the raw material into the crushing portion, the sliding amount at the crushing portion, and the discharge amount at the discharge port are harmonized, and the particle size is about 80% in a limited load. The above-mentioned fine powder can be produced stably. Further, since the discharge amount is set ahead, clogging hardly occurs even if a slight variation in production occurs.
【００１８】請求項２によると、より微粉砕化すること
が可能となり、 粒度９０％程度の細粒粉が作成できる。According to the second aspect, finer pulverization becomes possible, and a fine powder having a particle size of about 90% can be produced.
【００１９】請求項３によると、摩耗量の少ない最も適
した同一の材料等を選定することができ、製造上も材料
を同一にすることにより簡略化できる。According to the third aspect, it is possible to select the same material or the like that is most suitable with a small amount of wear, and it is possible to simplify the manufacturing process by using the same material.
【００２０】請求項４よると、ハウジングの摩擦係数を
ロータの摩擦係数よりも小さくするのに、単に表面処理
する材質を選定するだけで所望する摩擦係数を得ること
ができる。According to the fourth aspect, in order to make the friction coefficient of the housing smaller than the friction coefficient of the rotor, a desired friction coefficient can be obtained only by selecting a material to be surface-treated.
【００２１】請求項５によると、Ni基合金はWcサーメッ
トに比べ摩擦係数は約半分であり、研摩の加工性も優れ
ているので、ハウジングの摩擦係数をロータの摩擦係数
の半分以下に容易になすことができ、微細な細粒粉の製
造をさらに簡単にすることができる。According to the fifth aspect, the Ni-based alloy has a friction coefficient of about half that of Wc cermet and is excellent in workability of polishing, so that the friction coefficient of the housing can be easily reduced to less than half of the friction coefficient of the rotor. And the production of fine and fine-grained powder can be further simplified.
【００２２】請求項６によると、ハウジングの内周面に
備える刃が、ロータの翼の捩れ角とは反対の向きの捩れ
角に形成した擂潰手段になされており、さらに微細粉化
処理された細粒粉を安定した負荷で得ることが可能とな
る。According to the sixth aspect, the blade provided on the inner peripheral surface of the housing is formed by crushing means formed to have a twist angle opposite to the twist angle of the rotor blade, and is further subjected to fine powder treatment. It is possible to obtain fine powder with a stable load.
【図１】擂潰装置の擂潰部を示す断面図。FIG. 1 is a sectional view showing a crushing portion of a crushing device.
【図２】ロータとハウジングを示す斜視図。FIG. 2 is a perspective view showing a rotor and a housing.
【図３】ハウジングとロータの面粗さの差に対する粒度
割合を示す図。FIG. 3 is a diagram illustrating a particle size ratio with respect to a difference in surface roughness between a housing and a rotor.
１、ロータ ２、ハウジング ３、調整手段 ４、ロータの外周面 ５、ハウジングの内周面 ６、排出口 ７、刃 Reference Signs List 1, rotor 2, housing 3, adjusting means 4, outer peripheral surface of rotor 5, inner peripheral surface of housing 6, discharge port 7, blade
Claims (6)
を備えた回転するロータ及び該ロータを取囲むと共に内
周面に刃を備えた固定して設置されるハウジング並びに
該ハウジングと前記ロータとが共に原料の供給側を大径
に成して漸減させ該小径側へ処理物排出用の排出口を備
えて成る構造の擂潰手段と、該排出口近傍に備え且つロ
ータ及びハウジングの共通軸線上に於けるロータ側へ付
設すると共に該突出部分の端面とハウジング内周面との
間に間隔Ｈを構成する構造の調整手段とを備える擂潰装
置の擂潰部であって、前記ハウジング内周面の摩擦係数
がロータ外周面の摩擦係数より小さく形成されているこ
とを特徴とする擂潰装置の擂潰部構造。1. A rotating rotor having helical wings having a predetermined twist angle, a fixedly installed housing surrounding the rotor and having a blade on an inner peripheral surface, and the housing and the rotor. Crushing means having a structure in which the supply side of the raw material has a large diameter and is gradually reduced so as to have a discharge port for discharging the processed material to the small diameter side, and a crushing means provided near the discharge port and common to the rotor and the housing. A crushing portion of a crushing device, the crushing portion being provided on the rotor side on the axis and having an adjusting means having a structure for forming a space H between an end surface of the protruding portion and an inner peripheral surface of the housing; A crushing portion structure of a crushing device, wherein a friction coefficient of an inner peripheral surface is formed smaller than a friction coefficient of a rotor outer peripheral surface.
タ外周面の摩擦係数に対し半分以下に形成されているこ
とを特徴とする請求項１記載の擂潰装置の擂潰部構造。2. The crushing part structure of a crushing device according to claim 1, wherein the friction coefficient of the inner peripheral surface of the housing is formed to be less than half of the friction coefficient of the outer peripheral surface of the rotor.
操作されることを特徴とする請求項１記載の擂潰装置の
擂潰部構造。3. The crushing part structure of a crushing device according to claim 1, wherein the coefficient of friction is controlled by a difference in surface roughness.
って操作されることを特徴とする請求項１記載の擂潰装
置の擂潰部構造。4. The crushing part structure of a crushing device according to claim 1, wherein the coefficient of friction is controlled by a difference in surface material.
金と成しロータをWcサーメットと成されていることを特
徴とする請求項４記載の擂潰装置の擂潰部構造。5. The crushing part structure of a crushing device according to claim 4, wherein the surface material is made of a Ni-based alloy for the housing and a Wc cermet for the rotor.
前記ロータの翼の捩れ角とは反対の向きの捩れ角を有す
ることを特徴とする請求項１乃至５記載の擂潰装置の擂
潰部構造。6. A blade provided on an inner peripheral surface of the housing,
The crushing portion structure of the crushing device according to claim 1, wherein the crushing device has a twist angle in a direction opposite to a twist angle of the rotor blade.
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|---|---|---|---|
| JP22514799A JP4548874B2 (en) | 1999-08-09 | 1999-08-09 | Crushing part structure of crushing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22514799A JP4548874B2 (en) | 1999-08-09 | 1999-08-09 | Crushing part structure of crushing device |
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| Publication Number | Publication Date |
|---|---|
| JP2001046904A true JP2001046904A (en) | 2001-02-20 |
| JP4548874B2 JP4548874B2 (en) | 2010-09-22 |
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ID=16824692
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|---|---|---|---|
| JP22514799A Expired - Fee Related JP4548874B2 (en) | 1999-08-09 | 1999-08-09 | Crushing part structure of crushing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009078242A (en) * | 2007-09-27 | 2009-04-16 | Sakura Seisakusho:Kk | Uniaxial attrition mill |
| CN103487301A (en) * | 2013-09-23 | 2014-01-01 | 福建师范大学 | Soil analysis sample screening-grinding movable all-in-one machine |
| JP2020075239A (en) * | 2018-10-25 | 2020-05-21 | 昭和産業株式会社 | Crusher for flour production and production method for flour using the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06408A (en) * | 1992-05-27 | 1994-01-11 | Eiko Kin | Device for compressing and pulverizing coarse bran |
| JPH10296104A (en) * | 1997-04-25 | 1998-11-10 | Kinzo Matsunaga | Automatic crusher for waste goods, such as empty cans |
| JP3980152B2 (en) * | 1998-02-03 | 2007-09-26 | 株式会社北川鉄工所 | Crushing device and crushed material |
-
1999
- 1999-08-09 JP JP22514799A patent/JP4548874B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06408A (en) * | 1992-05-27 | 1994-01-11 | Eiko Kin | Device for compressing and pulverizing coarse bran |
| JPH10296104A (en) * | 1997-04-25 | 1998-11-10 | Kinzo Matsunaga | Automatic crusher for waste goods, such as empty cans |
| JP3980152B2 (en) * | 1998-02-03 | 2007-09-26 | 株式会社北川鉄工所 | Crushing device and crushed material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009078242A (en) * | 2007-09-27 | 2009-04-16 | Sakura Seisakusho:Kk | Uniaxial attrition mill |
| CN103487301A (en) * | 2013-09-23 | 2014-01-01 | 福建师范大学 | Soil analysis sample screening-grinding movable all-in-one machine |
| CN103487301B (en) * | 2013-09-23 | 2016-08-10 | 福建师范大学 | Movable integrated machine is ground in a kind of soil analysis sample screening |
| JP2020075239A (en) * | 2018-10-25 | 2020-05-21 | 昭和産業株式会社 | Crusher for flour production and production method for flour using the same |
| JP7437128B2 (en) | 2018-10-25 | 2024-02-22 | 昭和産業株式会社 | Pulverizer for producing flour and method for producing flour using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4548874B2 (en) | 2010-09-22 |
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