JP2500793Y2 - Roller for Roller Mill - Google Patents
Roller for Roller MillInfo
- Publication number
- JP2500793Y2 JP2500793Y2 JP1190791U JP1190791U JP2500793Y2 JP 2500793 Y2 JP2500793 Y2 JP 2500793Y2 JP 1190791 U JP1190791 U JP 1190791U JP 1190791 U JP1190791 U JP 1190791U JP 2500793 Y2 JP2500793 Y2 JP 2500793Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- bearing housing
- crushing
- outer periphery
- tire
- 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.)
- Expired - Lifetime
Links
Landscapes
- Crushing And Grinding (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案はロ−ラミル用ロ−ラの改
善に係り、より詳しくはロ−ラタイヤが外嵌される軸受
ハウジングの外周面の面圧強度を向上させたロ−ラミル
用ロ−ラに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a roller for a roller mill, and more particularly, for a roller mill in which the surface pressure strength of the outer peripheral surface of a bearing housing on which a roller tire is fitted is improved. It is related to rollers.
【０００２】[0002]
【従来の技術】岩石、スラグ、クリンカ、石炭、石膏、
セメント原料等の被粉砕原料を粉砕するのに粉砕機が使
用されているが、粉砕機の中に例えばロ−ラミルがあ
る。このようなロ−ラミルは、その主要部構成説明図の
図５に示すように、垂直軸心周りに回転される粉砕テ−
ブル１と、この粉砕テ−ブル１の上面に押圧されると共
に転動して、粉砕テ−ブル１の上に供給された被粉砕原
料を粉砕する粉砕ロ−ラ５とからなっている。2. Description of the Related Art Rock, slag, clinker, coal, plaster,
A crusher is used for crushing raw materials to be crushed such as cement raw material, and the crusher includes, for example, a roller mill. Such a roller mill, as shown in FIG. 5 which is an explanatory view of the structure of the main part of the roller mill, has a pulverizing station rotated about a vertical axis.
The table 1 includes a crushing table 1 and a crushing roller 5 that is pressed against the upper surface of the crushing table 1 and rolls to crush the raw material to be crushed supplied onto the crushing table 1.
【０００３】粉砕ロ−ラ５の詳細は、前記粉砕テ−ブル
１を支持する架台２の上に設けられたブラケット３によ
り水平軸3aの軸心周りに揺動自在に支持される支持軸４
によって支持されており、この支持軸４の反揺動支持側
に軸受5aを介して、回転軸方向の外周の中央部に逃げ溝
5dが周設されてなる軸受ハウジング5bが回転自在に支持
されると共に、これにロ−ラタイヤ5cが外嵌されてなる
構成になっている。The details of the crushing roller 5 include a support shaft 4 supported by a bracket 3 provided on a pedestal 2 supporting the crushing table 1 so as to be swingable around the axis of the horizontal shaft 3a.
Is supported by the support shaft 4, and a relief groove is formed in the central portion of the outer periphery in the rotation axis direction on the counter-oscillation support side of the support shaft 4 via the bearing 5a.
A bearing housing 5b having a circumference 5d is rotatably supported, and a roller tire 5c is externally fitted to the bearing housing 5b.
【０００４】また、上記ロ−ラタイヤ5cには、１体型の
ものと分割型のものとがあり、用途によって使い分けら
れているが、同図に示すように、軸受ハウジング5bにボ
ルト等の機械的手段により取付けられたクランプ６によ
って、その両端面が挟圧されることにより軸受ハウジン
グ5bに固定されている。There are two types of roller tires 5c, one-body type and split type, which are properly used depending on the application. Both ends of the clamp 6 are clamped by the clamp 6 and fixed to the bearing housing 5b.
【０００５】ところで、一般に軸受ハウジング5bはロ−
ラタイヤ5cの材質よりも低硬度の鋳鉄や鋳鋼を用いて製
造されているが、消耗品であるロ−ラタイヤ5cには高硬
度が要求されるので、例えば高クロム系或いはＮｉ−Ｈ
ａｒｄ系鋳鉄といった材料が用いられている。By the way, generally, the bearing housing 5b is
Although it is manufactured using cast iron or cast steel having a hardness lower than that of the tire 5c, the roller tire 5c, which is a consumable item, is required to have high hardness.
Materials such as ard type cast iron are used.
【０００６】また、特開昭６１−１５９２７９号公報に
て開示されているように、外表面の磨耗が激しくない部
分には高Ｃ−高Ｃｒ鋳鉄系硬化肉盛金属を肉盛溶接し、
特に磨耗が激しい部分には高Ｃ−高Ｃｒ鋳鉄系硬化肉盛
金属をマトリックスとし、より耐磨耗の良好な未溶融粒
子のＮｂＣ，ＴｉＣまたはＶＣの何れかの炭化物を分散
させた硬化肉盛金属を肉盛溶接することによって、被粉
砕原料を挟圧・粉砕する部分の耐磨耗性を向上させるよ
うにしたロ−ラタイヤもある。Further, as disclosed in Japanese Patent Laid-Open No. 61-159279, a high C-high Cr cast iron-based hardfacing metal is overlay welded to a portion of the outer surface where wear is not severe,
Particularly in a portion where wear is severe, a high C-high Cr cast iron-based hardfacing metal is used as a matrix, and a hardfacing material in which carbide of NbC, TiC or VC of unmelted particles having better wear resistance is dispersed. There is also a roller tire in which the wear resistance of a portion where the raw material to be crushed is sandwiched and crushed is improved by overlay welding the metal.
【０００７】[0007]
【考案が解決しようとする課題】粉砕ロ−ラを構成する
各部品の強度に基づく能力範囲内で稼働するのであれば
問題はないが、例えば高硬度の被粉砕原料を粉砕する場
合や被粉砕原料の粉砕量を増す等のときには粉砕テ−ブ
ルに粉砕ロ−ラをより強く押圧する必要がある。There is no problem as long as it operates within the capacity range based on the strength of each part constituting the crushing roller. For example, when crushing a raw material of high hardness or crushing raw material. When increasing the pulverization amount of the raw material, it is necessary to press the pulverization roller against the pulverization table more strongly.
【０００８】上記特開昭６１−１５９２７９号公報にお
いて開示されてなる粉砕ロ−ラのロ−ラタイヤでは、確
かに硬化肉盛金属が肉盛溶接されているが故に被粉砕原
料を挟圧・粉砕する部分は耐磨耗が優れている。In the roller tire of the crushing roller disclosed in the above-mentioned Japanese Patent Laid-Open No. 61-159279, since the hardfacing metal is certainly welded by overlay welding, the raw material to be crushed is pinched and crushed. The part to be worn has excellent wear resistance.
【０００９】しかしながら、ロ−ラタイヤが外嵌される
軸受ハウジングの材質に係る表面硬度の問題があって、
粉砕テ−ブルに対する粉砕ロ−ラの押圧力を強めていく
と、ロ−ラタイヤの方が軸受ハウジングよりも高硬度で
あるために、ロ−ラタイヤを介して伝達される反力によ
ってこの軸受ハウジングの表面が変形してしまう。However, there is a problem of surface hardness related to the material of the bearing housing on which the roller tire is fitted,
As the pressing force of the crushing roller against the crushing table is increased, the hardness of the roller tire is higher than that of the bearing housing. Therefore, the reaction force transmitted through the roller tire causes the bearing housing to move. Will deform the surface.
【００１０】このように、軸受ハウジングの表面が変形
してしまうと、ロ−ラタイヤが取付けられない、また運
転中にロ−ラタイヤが外れる等の問題が生じ、軸受ハウ
ジングが再使用不能な状態になることがある。If the surface of the bearing housing is thus deformed, problems such as the roller tire not being attached and the roller tire coming off during operation occur, and the bearing housing becomes unusable. May be.
【００１１】上記したように、ロ−ラタイヤは消耗品で
あるが、通常軸受ハウジングは基本的に１０年以上使用
されるもので消耗品ではないので、軸受ハウジングが再
使用不能になるとロ−ラミルの修理費が大幅に増加する
のに加えて、長期間の運転停止による稼働率の低下を来
すことになる。As described above, the roller tire is a consumable item, but the bearing housing is basically used for 10 years or longer and is not a consumable item. Therefore, when the bearing housing cannot be reused, the roller mill is used. In addition to a significant increase in repair costs, the operating rate will be reduced due to a long outage.
【００１２】つまり、ロ−ラタイヤに係るランニングコ
ストが削減されたとしても、軸受ハウジングの再使用不
能に基づくメインテナンス費の増大があることになり、
全体的な観点からすれば必ずしも経済的とはいえ得な
い。That is, even if the running cost of the roller tire is reduced, there is an increase in maintenance cost due to the inability to reuse the bearing housing.
From an overall point of view, it is not always economical.
【００１３】それならば、軸受ハウジングを高硬度な材
料、例えばロ−ラタイヤと同一の材料を用いて製造すれ
ば上記のような不具合を防止し得るが、経済上の関係か
ら高価な高級材料が使用されていないのが現実である。In this case, if the bearing housing is manufactured by using a material having a high hardness, for example, the same material as the roller tire, the above problems can be prevented, but an expensive high-grade material is used for economical reasons. The reality is that it is not done.
【００１４】従って、本考案は従来と同材料を用いて、
しかも高負荷に耐え得る軸受ハウジングを有するロ−ラ
ミル用ロ−ラの提供を目的とする。Therefore, the present invention uses the same material as before,
Moreover, it is an object of the present invention to provide a roller for a roller mill having a bearing housing capable of withstanding a high load.
【００１５】[0015]
【課題を解決するための手段】本考案は、上記した実情
に鑑みてなされたものであって、従って本考案に係るロ
−ラミル用ロ−ラの構成は、上下方向に揺動自在に支持
される支持軸の反揺動支持側に軸受を介して軸受ハウジ
ングが回転自在に支持され、該軸受ハウジングに外嵌さ
れ、かつ垂直軸心周りに回転される粉砕テ−ブルの上面
を転動して該粉砕テ−ブルに供給された原料を粉砕する
ロ−ラタイヤを有してなるロ−ラミル用ロ−ラにおい
て、前記軸受ハウジングの外周に所定厚さの硬化肉盛層
を形成してなることを特徴とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and therefore the structure of the roller for a roller mill according to the present invention is supported so as to be swingable in the vertical direction. A bearing housing is rotatably supported via a bearing on the anti-oscillation support side of the supporting shaft, and is fitted over the bearing housing and rolls on the upper surface of a grinding table which is rotated around a vertical axis. In a roller for a roller mill having a roller tire for crushing the raw material supplied to the crushing table, a hardfacing layer having a predetermined thickness is formed on the outer circumference of the bearing housing. It is characterized by
【００１６】[0016]
【作用】ところで、繰り返し圧縮荷重（片振り）を受け
る場合の許容値は、例えば石橋正著になる養賢堂の出版
の「金属の疲労と破壊の防止」にも記述されているよう
に、一般に材料の許容面圧値で与えられ引張強さ或いは
材料の硬さに依存することが知られている。By the way, the permissible value when subjected to repeated compressive load (single swing) is, for example, as described in "Prevention of Metal Fatigue and Fracture" published by Yokendo published by Tadashi Ishibashi. It is generally known that it is given by the allowable surface pressure value of the material and depends on the tensile strength or the hardness of the material.
【００１７】従って、本考案に係るロ−ラミル用ロ−ラ
によれば、軸受ハウジングの外周に所定厚さの硬化肉盛
層を形成したので、この硬化肉盛層により軸受ハウジン
グの外周の面圧強度が向上し、繰り返し圧縮荷重に対す
る軸受ハウジングの耐久性が向上する。Therefore, according to the roller for a roller mill of the present invention, since the hardfacing layer having a predetermined thickness is formed on the outer periphery of the bearing housing, the outer surface of the bearing housing is formed by the hardfacing layer. The pressure strength is improved, and the durability of the bearing housing against repeated compressive load is improved.
【００１８】[0018]
【実施例】本考案の実施例を、一体型の粉砕ロ−ラを有
するロ−ラミルの主要部構成説明図の図１と、外周に硬
化肉盛層を形成した軸受ハウジングの一部省略構成説明
図の図２、図３及び図４を参照しながら、従来と同一の
もの並びに同一機能を有するものを同一符号を以て以下
に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIG. 1 which is an explanatory view of the main structure of a roller mill having an integrated crushing roller, and a partially omitted structure of a bearing housing having a hardfacing layer formed on the outer periphery thereof. With reference to FIGS. 2, 3 and 4 which are explanatory diagrams, the same parts and those having the same function as those of the conventional one will be described below with the same reference numerals.
【００１９】図１は、第１実施例に係るものであって、
従来と同様に、垂直軸心周りに回転される粉砕テ−ブル
１と、この粉砕テ−ブル１の上面に押圧されると共に転
動して、粉砕テ−ブル１の上に供給された被粉砕原料を
粉砕する粉砕ロ−ラ５とからなっている。FIG. 1 relates to the first embodiment,
As in the conventional case, the crushing table 1 rotated around the vertical axis, and the crushed table 1 which is pressed against the upper surface of the crushing table 1 and rolls to be supplied onto the crushing table 1. It comprises a crushing roller 5 for crushing the crushed raw material.
【００２０】上記粉砕ロ−ラ５は、前記粉砕テ−ブル１
を支持する架台２の上に設けられたブラケット３により
水平軸心周りに揺動自在に支持される支持軸４によって
支持されており、支持軸４の反揺動支持側に軸受5aを介
して、外周に１層で厚さ５ｍｍの硬化肉盛層ｈが形成さ
れてなるコ−ン状の軸受ハウジング5bが回転自在に支持
されると共に、この軸受ハウジング5bにはロ−ラタイヤ
5cが外嵌されてなる構成になっている。The crushing roller 5 includes the crushing table 1
It is supported by a support shaft 4 that is swingably supported around a horizontal axis by a bracket 3 provided on a pedestal 2 that supports the support shaft 4. , A cone-shaped bearing housing 5b having a single-layer hardened buildup layer h having a thickness of 5 mm formed on the outer periphery is rotatably supported, and a roller tire is mounted on the bearing housing 5b.
It has a configuration in which 5c is externally fitted.
【００２１】以上の構成に係る説明から良く理解される
ように、この実施例に係る粉砕ロ−ラ５は軸受ハウジン
グ5bの外周に硬化肉盛層ｈが形成されていることと、軸
受ハウジング5bがコ−ン状である以外は、従来と全く同
構成になるものである。As is well understood from the description of the above construction, the grinding roller 5 according to this embodiment has the hardened buildup layer h formed on the outer periphery of the bearing housing 5b and the bearing housing 5b. Except that it has a cone shape, it has the same structure as the conventional one.
【００２２】従来では、負荷の増大により軸受ハウジン
グ5bの表面に変形が生じ、同図に示す矢印方向、つまり
同図の左側方向にロ−ラタイヤ5cが移動する結果、被粉
砕原料の粉砕に際してロ−ラタイヤ5cががたつき軸受ハ
ウジング5bの表面に傷付が生じる他、がたつきによりさ
らに軸受ハウジング5bの表面の磨耗が促進されるという
不具合が生じてしまうので、軸受ハウジング5bに耐久性
上の懸念があった。Conventionally, the surface of the bearing housing 5b is deformed due to an increase in the load, and the roller tire 5c moves in the direction of the arrow shown in the figure, that is, in the left direction of the figure. -The rattle 5c rattles and the surface of the bearing housing 5b is scratched, and rattling further causes abrasion of the surface of the bearing housing 5b, which causes a problem in terms of durability of the bearing housing 5b. There was concern.
【００２３】しかしながら、この実施例では硬化肉盛層
ｈにより軸受ハウジング5bの表面の面圧強度が向上した
結果、上記と同等の負荷を作用させても軸受ハウジング
5bの変形がなくなる結果、ロ−ラタイヤ5cが移動したり
するようなことがなくなる。However, in this embodiment, as a result of the surface pressure strength of the surface of the bearing housing 5b being improved by the hardfacing layer h, even if a load equivalent to the above is applied, the bearing housing
As a result of the deformation of 5b disappearing, the roller tire 5c does not move.
【００２４】ところで、硬化肉盛層ｈを形成した軸受ハ
ウジング5bは、軸受ハウジング5bをロ−ラタイヤ5cと同
じ材質で製造する場合より安価に製造することができ、
特に経済上不利になるようなことは少なかった。By the way, the bearing housing 5b having the hardfacing layer h formed thereon can be manufactured at a lower cost than when the bearing housing 5b is manufactured from the same material as the roller tire 5c.
In particular, there were few economic disadvantages.
【００２５】なお、硬化肉盛層ｈの厚さを５ｍｍとした
が、その理由は硬化肉盛層ｈの厚さが５ｍｍ未満である
と、軸受ハウジング5bの母材がそれほど高硬度でないた
めにこれが変形することに伴って硬化肉盛層ｈに亀裂が
生じ、軸受ハウジング5bの強度向上という目的を達成し
得なくなる恐れがあるために他ならない。The thickness of the hardfacing layer h was set to 5 mm, because the base material of the bearing housing 5b is not so hard if the thickness of the hardfacing layer h is less than 5 mm. This is unavoidable because cracks may occur in the hardfacing layer h as it is deformed, and the purpose of improving the strength of the bearing housing 5b may not be achieved.
【００２６】図２は、外周に硬化肉盛層を形成した軸受
ハウジングの一部省略構成説明図で第２実施例に係る実
施例を示しているが、その形状は図５において説明した
従来のものと同構成であって、軸受ハウジング5bの回転
軸方向の中間に逃げ溝5dが周設されると共に、この逃げ
溝5dを除く部位の外周に、２層で厚さ２０ｍｍの複数の
鉢巻き状の部分硬化肉盛層ｈが形成されている。故に、
この実施例は前記第１実施例に係る軸受ハウジング5bと
同効である。FIG. 2 is an explanatory view of a partially omitted structure of a bearing housing in which a hard facing layer is formed on the outer periphery, showing an embodiment according to the second embodiment, the shape of which is the same as that of the conventional one described in FIG. It has the same structure as the one described above, and a relief groove 5d is provided in the middle of the bearing housing 5b in the direction of the rotation axis, and a plurality of headbands with a thickness of 20 mm are formed in two layers on the outer periphery of the portion excluding the relief groove 5d. The partially hardened overlay layer h is formed. Therefore,
This embodiment has the same effect as the bearing housing 5b according to the first embodiment.
【００２７】図３は、外周に硬化肉盛層を形成した軸受
ハウジングの一部省略構成説明図で第３実施例に係る実
施例を示しているが、その形状は上記第２実施例と同形
状であって、逃げ溝5dを除く部位の一方、つまり稼働実
績からより高負荷が作用する側の外周の全面に２層で厚
さ２０ｍｍの硬化肉盛層ｈが形成されている。故に、こ
の実施例は前記第１実施例に係る軸受ハウジング5bと同
効である。FIG. 3 is an explanatory view of a partially omitted structure of a bearing housing having a hardfacing layer formed on the outer periphery, showing an embodiment according to the third embodiment, the shape of which is the same as that of the second embodiment. The hard facing layer h having a thickness of 20 mm is formed in two layers on one side of the portion excluding the escape groove 5d, that is, in the shape, that is, on the entire outer surface on the side where a higher load is applied in view of the operation results. Therefore, this embodiment has the same effect as the bearing housing 5b according to the first embodiment.
【００２８】図４は、外周に硬化肉盛層を形成した軸受
ハウジングの一部省略構成説明図で第４実施例に係る実
施例を示しているが、その形状は上記第２実施例と同形
状であって、逃げ溝5dを除く部位の外周の全面に、２層
で厚さ２０ｍｍの硬化肉盛層ｈが形成されてなる硬化肉
盛リング5eを焼嵌めにより外嵌してなるものである。故
に、この実施例は前記第１実施例に係る軸受ハウジング
5bと同効である。FIG. 4 is an explanatory view of a partially omitted construction of a bearing housing having a hardfacing layer formed on the outer periphery, showing an embodiment according to the fourth embodiment, the shape of which is the same as that of the second embodiment. It has a shape, and is formed by shrink-fitting a hard facing layer 5e having a hard facing layer h of two layers with a thickness of 20 mm on the entire outer periphery of the portion excluding the escape groove 5d. is there. Therefore, this embodiment is the bearing housing according to the first embodiment.
Same effect as 5b.
【００２９】このように、軸受ハウジング5bの外周面に
所定厚さの硬化肉盛層を形成するだけで、軸受ハウジン
グ5bの変形抵抗の増大に伴う耐久性の大幅な向上が可能
になるだけでなく、従来粉砕し得なかったような高硬度
の被粉砕原料を粉砕する場合や被粉砕原料の破砕量を増
す等の場合に適用し得ることとなり、ロ−ラミルの能力
の大幅な向上にも寄与することができる。As described above, only by forming the hardfacing layer having a predetermined thickness on the outer peripheral surface of the bearing housing 5b, it is possible to greatly improve the durability as the deformation resistance of the bearing housing 5b increases. Therefore, it can be applied to the case of pulverizing a material to be pulverized having a high hardness that could not be pulverized in the past or increasing the crushing amount of the material to be pulverized. Can contribute.
【００３０】[0030]
【考案の効果】以上詳述したように、本考案に係るロ−
ラミル用ロ−ラによれば、軸受ハウジングの外周に硬化
肉盛層を形成した。従って、この硬化肉盛層により軸受
ハウジングの外周の面圧強度が向上する結果、従来であ
れば変形したような負荷を作用させても軸受ハウジング
の表面が変形しなくなるので、ロ−ラミルの修理費の低
減と、稼働率の向上とに対して極めて多大な効果を期待
することができる。[Effects of the Invention] As described above in detail,
According to the roller for Ramil, the hard facing layer is formed on the outer periphery of the bearing housing. Therefore, as a result of the surface pressure strength of the outer periphery of the bearing housing being improved by this hard facing layer, the surface of the bearing housing will not be deformed even if a load that has been deformed in the past is applied, so that the roller mill can be repaired. It is possible to expect an extremely great effect on cost reduction and improvement of operating rate.
【図１】本考案の第１実施例に係る一体型の粉砕ロ−ラ
を有するロ−ラミルの主要部構成説明図である。FIG. 1 is an explanatory view of a main part configuration of a roller mill having an integrated crushing roller according to a first embodiment of the present invention.
【図２】本考案の第２実施例に係る外周に硬化肉盛層を
形成した軸受ハウジングの一部省略構成説明図である。FIG. 2 is a partially omitted structural explanatory view of a bearing housing having a hardfacing layer formed on the outer periphery according to a second embodiment of the present invention.
【図３】本考案の第３実施例に係る外周に硬化肉盛層を
形成した軸受ハウジングの一部省略構成説明図である。FIG. 3 is a partially omitted configuration explanatory view of a bearing housing having a hardfacing layer formed on the outer periphery according to a third embodiment of the present invention.
【図４】本考案の第４実施例に係る外周に硬化肉盛層を
形成した軸受ハウジングの一部省略構成説明図である。FIG. 4 is a partially omitted structural explanatory view of a bearing housing having a hardfacing layer formed on the outer periphery according to a fourth embodiment of the present invention.
【図５】従来例に係るロ−ラミルの主要部構成説明図で
ある。FIG. 5 is an explanatory diagram of a main part configuration of a roller mill according to a conventional example.
１…粉砕テ−ブル、２…架台、３…ブラケット、４…支
持軸、５…粉砕ロ−ラ、5a…軸受、5b…軸受ハウジン
グ、5c…ロ−ラタイヤ、5d…逃げ溝、5e…硬化肉盛リン
グ、６…クランプ、ｈ…硬化肉盛層。1 ... Grinding table, 2 ... Stand, 3 ... Bracket, 4 ... Support shaft, 5 ... Grinding roller, 5a ... Bearing, 5b ... Bearing housing, 5c ... Roller tire, 5d ... Escape groove, 5e ... Curing Overlay ring, 6 ... Clamp, h ... Hardened overlay layer.
Claims (1)
の反揺動支持側に軸受を介して軸受ハウジングが回転自
在に支持され、該軸受ハウジングに外嵌され、かつ垂直
軸心周りに回転される粉砕テ−ブルの上面を転動して該
粉砕テ−ブルに供給された被粉砕原料を粉砕するロ−ラ
タイヤを有してなるロ−ラミル用ロ−ラにおいて、前記
軸受ハウジングの外周に所定厚さの硬化肉盛層を形成し
てなることを特徴とするロ−ラミル用ロ−ラ。1. A bearing housing is rotatably supported via a bearing on the side opposite to the swing support of a support shaft that is swingably supported in the up-and-down direction, is externally fitted to the bearing housing, and has a vertical shaft center. A roller for a roller mill comprising a roller tire that rolls on the upper surface of a crushing table rotated to crush the raw material to be crushed supplied to the crushing table. A roller for a roller mill, comprising a hardfacing layer having a predetermined thickness formed on the outer periphery of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1190791U JP2500793Y2 (en) | 1991-03-06 | 1991-03-06 | Roller for Roller Mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1190791U JP2500793Y2 (en) | 1991-03-06 | 1991-03-06 | Roller for Roller Mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04110137U JPH04110137U (en) | 1992-09-24 |
| JP2500793Y2 true JP2500793Y2 (en) | 1996-06-12 |
Family
ID=31900965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1190791U Expired - Lifetime JP2500793Y2 (en) | 1991-03-06 | 1991-03-06 | Roller for Roller Mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2500793Y2 (en) |
-
1991
- 1991-03-06 JP JP1190791U patent/JP2500793Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04110137U (en) | 1992-09-24 |
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