JP2002159875A - Vertical mill - Google Patents
Vertical millInfo
- Publication number
- JP2002159875A JP2002159875A JP2000361547A JP2000361547A JP2002159875A JP 2002159875 A JP2002159875 A JP 2002159875A JP 2000361547 A JP2000361547 A JP 2000361547A JP 2000361547 A JP2000361547 A JP 2000361547A JP 2002159875 A JP2002159875 A JP 2002159875A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- rotary table
- radial direction
- fluid pressure
- vertical mill
- 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.)
- Pending
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は竪型ミルに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical mill.
【０００２】[0002]
【従来の技術】図６は従来の竪型ミルの一例を示すもの
であり、この竪型ミルは、ケーシング１内底近傍に配置
した回転テーブル２と、ケーシング１外部に立設した支
持脚３と、該支持脚３の上部に取り付けた軸受４と、基
端部が回転テーブル２接線方向へ延びる揺動中心軸５に
より前記の軸受４に枢支され且つ回転テーブル２上方で
ケーシング１胴部を貫通する揺動腕６と、揺動腕６先端
部に回転テーブル２上面を転動し得るように枢支した粉
砕用ローラ７と、揺動腕６先端部を回転テーブル２へ向
かって付勢する押圧用シリンダ８と、ケーシング１胴部
を貫通し且つ外部から回転テーブル２上へ石灰石などの
ような不定形砕料を送給する投入管９と、ケーシング１
上部を貫通し且つ所定粒径に粉砕された砕料を外部へ送
出するための送出管１０と、ケーシング１外部に設けら
れ且つ前記の回転テーブル２を駆動するモータ１１と、
ケーシング１内方上部に配置した分級器１２と、ケーシ
ング１上部に設けられ且つ前記の分級器１２を駆動する
モータ１３と、ケーシング１がブラケット（図示せず）
を介して支持され且つ支持脚３の下端部が締結される台
盤１４とを備えており、ケーシング１内方下部には、空
気流が送給されるようになっている。2. Description of the Related Art FIG. 6 shows an example of a conventional vertical mill. This vertical mill includes a rotary table 2 disposed near an inner bottom of a casing 1 and support legs 3 standing upright outside the casing 1. And a bearing 4 mounted on the upper part of the support leg 3, and a base 1 pivotally supported by the bearing 4 by a swinging center shaft 5 extending in a tangential direction of the turntable 2, and a casing 1 body portion above the turntable 2. , A crushing roller 7 pivotally supported at the tip of the swing arm 6 so that the upper surface of the rotary table 2 can be rolled, and the tip of the swing arm 6 facing the rotary table 2. A pressurizing cylinder 8; an input pipe 9 which penetrates the body of the casing 1 and feeds an irregular crushing material such as limestone from the outside onto the rotary table 2;
A delivery pipe 10 for passing the pulverized material having a predetermined particle size penetrating through the upper portion to the outside, a motor 11 provided outside the casing 1 and driving the rotary table 2,
A classifier 12 disposed at an upper inside portion of the casing 1, a motor 13 provided at an upper portion of the casing 1 and driving the classifier 12, and a casing (not shown) including a casing 1
And a base 14 to which the lower end of the support leg 3 is fastened, and an air flow is supplied to the lower inside of the casing 1.
【０００３】押圧用シリンダ８は、そのハウジング１５
が支持脚３下端寄り部分に、また、ピストンロッド１６
が揺動腕６の長手方向中間部分に、それぞれ回転テーブ
ル２接線方向へ延びる連結軸１７，１８を介して枢支さ
れている。The pressing cylinder 8 has a housing 15
Is located near the lower end of the support leg 3 and the piston rod 16
Are pivotally supported at the intermediate portion in the longitudinal direction of the swing arm 6 via connecting shafts 17 and 18 extending in the tangential direction of the turntable 2 respectively.
【０００４】図６に示す竪型ミルでは、モータ１１，１
３によって回転テーブル２と分級器１２を回転させなが
ら、投入管９から回転テーブル２上へ不定形砕料を送給
し、揺動腕６先端部が回転テーブル２へ向かって付勢さ
れるように押圧用シリンダ８を作動させると、粉砕用ロ
ーラ７が、遠心力で回転テーブル２の周縁近傍へ分散す
る不定形砕料を押しつぶす。[0006] In the vertical mill shown in FIG.
While rotating the rotary table 2 and the classifier 12 by 3, the irregularly shaped crushing material is fed from the charging pipe 9 onto the rotary table 2 so that the tip of the swing arm 6 is urged toward the rotary table 2. When the pressing cylinder 8 is operated, the crushing roller 7 crushes the irregularly shaped crushing material dispersed near the periphery of the rotary table 2 by centrifugal force.
【０００５】更に、所定粒径に破砕された砕料は、ケー
シング１内方下部へ送給される空気流により、分級器１
２及び送出管１０を経てケーシング１外方へ搬送され
る。[0005] Further, the crushed material crushed to a predetermined particle size is subjected to a classifier 1 by an air flow fed to the lower inside of the casing 1.
It is transported to the outside of the casing 1 via the delivery pipe 2 and the delivery pipe 10.
【０００６】また、所定粒径よりも大きな砕料は、分級
器１２で選別されて回転テーブル２上へ落下し、粉砕用
ローラ７で押しつぶされる。[0006] A crushing material larger than a predetermined particle size is sorted by the classifier 12, falls on the rotary table 2, and is crushed by the crushing roller 7.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、図６に
示す竪型ミルにおいては、回転テーブル２上面と粉砕用
ローラ７外周面との間に形状が大きな不定形砕料が噛み
込まれたときに、粉砕用ローラ７、揺動腕６、揺動中心
軸５、及び軸受４を介して、支持脚３上部に回転テーブ
ル２径方向外側へ向かう過大な水平力が作用し、台盤１
４に対して支持脚３下部を締結しているボルトや台盤１
４が損傷することがある。However, in the vertical mill shown in FIG. 6, when an irregularly shaped crushing material having a large shape is caught between the upper surface of the rotary table 2 and the outer peripheral surface of the crushing roller 7, the vertical mill shown in FIG. An excessive horizontal force directed radially outward of the rotary table 2 acts on the upper portion of the support leg 3 via the crushing roller 7, the swing arm 6, the swing center shaft 5, and the bearing 4, and the base 1
Bolts and base 1 fastening the lower part of support legs 3 to 4
4 may be damaged.
【０００８】本発明は上述した実情に鑑みてなしたもの
で、回転テーブル径方向への過大な力が支持脚に作用し
ない竪型ミルを提供することを目的としている。The present invention has been made in view of the above circumstances, and has as its object to provide a vertical mill in which an excessive force in the radial direction of the rotary table does not act on the support legs.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１に記載の竪型ミルでは、上方から
不定形砕料が供給されるケーシング内部に配置した回転
テーブルと、ケーシング外部に立設した支持脚と、該支
持脚に回転テーブル径方向へ移動可能に取り付けた軸受
と、基端部が回転テーブル接線方向へ延びる揺動中心軸
により前記の軸受に枢支され且つ回転テーブル上方でケ
ーシング胴部を貫通する揺動腕と、揺動腕先端部に回転
テーブル上面を転動し得るように枢支した粉砕用ローラ
と、揺動腕先端部を回転テーブルへ向かって付勢する押
圧手段と、前記の軸受に付与される回転テーブル径方向
への力が予め設定した値を超過したときに軸受の変位を
許容する位置設定手段とを備えている。In order to achieve the above object, a vertical mill according to the first aspect of the present invention comprises: a rotary table disposed inside a casing to which an irregularly shaped material is supplied from above; A support leg erected outside, a bearing mounted on the support leg so as to be movable in the radial direction of the rotary table, and a base end portion pivotally supported by the bearing by a swing center shaft extending in a tangential direction of the rotary table and rotated. A swing arm that penetrates the casing body above the table, a crushing roller pivotally supported at the tip of the swing arm so that the upper surface of the rotary table can be rolled, and a tip of the swing arm facing the rotary table And a position setting means for allowing displacement of the bearing when the radial force applied to the bearing exceeds a predetermined value.
【００１０】本発明の請求項２に記載の竪型ミルでは、
軸受・支持脚間に介在し且つ軸受の移動に応じて伸縮可
能なスプリング並びに流体圧シリンダと、該流体圧シリ
ンダの各流体室を相互に連通する流量調整弁とによって
位置設定手段を構成している。[0010] In the vertical mill according to claim 2 of the present invention,
A position setting means is constituted by a spring and a fluid pressure cylinder interposed between the bearing and the support leg and capable of expanding and contracting in accordance with the movement of the bearing, and a flow rate regulating valve for interconnecting each fluid chamber of the fluid pressure cylinder. I have.
【００１１】また、本発明の請求項３に記載の竪型ミル
では、軸受・支持脚間に介在し且つ軸受の移動に応じて
伸縮可能な流体圧シリンダと、該流体圧シリンダの一方
の流体室に連通し且つ他方の流体室に作動圧力設定機能
を有する逆止弁を介して接続したアキュムレータとによ
って位置設定手段を構成している。In the vertical mill according to a third aspect of the present invention, a fluid pressure cylinder interposed between the bearing and the support leg and capable of expanding and contracting according to the movement of the bearing, and one fluid of the fluid pressure cylinder is provided. An accumulator which communicates with the chamber and is connected to the other fluid chamber via a check valve having a function of setting an operating pressure constitutes a position setting means.
【００１２】本発明の請求項１乃至請求項３に記載した
竪型ミルのいずれにおいても、回転テーブル上面と粉砕
用ローラ外周面との間に形状が大きな不定形砕料が噛み
込まれると、位置設定手段が軸受をテーブル径方向へ変
位させ、粉砕用ローラ、揺動腕、揺動中心軸、及び軸受
を介して支持脚上部に付与される回転テーブル径方向へ
の過大な力を回避する。[0012] In any of the vertical mills according to the first to third aspects of the present invention, when an irregularly shaped pulverized material having a large shape is caught between the upper surface of the rotary table and the outer peripheral surface of the crushing roller, The position setting means displaces the bearing in the radial direction of the table to avoid excessive force in the radial direction of the rotary table applied to the upper portion of the support leg via the crushing roller, the swing arm, the swing center shaft, and the bearing. .
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態を、図
示例とともに説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１乃至図４は本発明の竪型ミルの実施の
形態の一例を示すものであり、図中、図６と同一の符号
を付した部分は同一物を表わしている。FIGS. 1 to 4 show an example of an embodiment of a vertical mill according to the present invention. In the figures, the parts denoted by the same reference numerals as those in FIG. 6 represent the same parts.
【００１５】この竪型ミルは、支持脚３の上部に回転テ
ーブル２径方向へ移動し得るように取り付けた軸受１９
と、該軸受１９に付与される回転テーブル２径方向への
力が予め設定した値を超過したときに軸受１９の変位を
許容する位置設定手段２０とを備えている。This vertical mill has a bearing 19 mounted on the support leg 3 so as to be movable in the radial direction of the turntable 2.
And a position setting means 20 for permitting the displacement of the bearing 19 when the radial force applied to the bearing 19 in the radial direction of the rotary table 2 exceeds a preset value.
【００１６】軸受１９は、揺動腕６の基端部両側に配置
され且つ支持脚３の頂板２１上面を摺動し得る軸嵌装体
２２と、該軸嵌装体２２下部に連なって回転テーブル２
接線方向へ突出し且つ頂板２１上面を摺動し得る受圧部
２３と、該受圧部２３上面に接し且つ頂板２１の回転テ
ーブル２径方向全長にわたって延びる押圧板２４と、頂
板２１に固着され且つ押圧板２４上面に対して空隙を形
成する保持部材２５と、押圧板２４と保持部材２５の間
に介装され且つ当該押圧板２４を受圧部２３に向かって
付勢するスプリング２６とで構成されており、軸嵌装体
２２底面には、頂板２１に形成した回転テーブル２径方
向へ延びる凸条部２７に嵌合する溝２８が設けられてい
る。The bearings 19 are disposed on both sides of the base end of the swing arm 6 and are capable of sliding on the upper surface of the top plate 21 of the support leg 3. Table 2
A pressure receiving portion 23 projecting tangentially and slidable on the upper surface of the top plate 21; a pressing plate 24 in contact with the upper surface of the pressure receiving portion 23 and extending over the entire length of the rotary table 2 of the top plate 21 in the radial direction; 24, a holding member 25 forming a gap with respect to the upper surface, and a spring 26 interposed between the pressing plate 24 and the holding member 25 and biasing the pressing plate 24 toward the pressure receiving portion 23. The bottom surface of the shaft fitting body 22 is provided with a groove 28 that fits into a ridge 27 formed on the top plate 21 and extending in the radial direction of the turntable 2.
【００１７】また、軸嵌装体２２には、揺動腕６の基端
部が揺動中心軸５により枢支されている。The base end of the swing arm 6 is pivotally supported by the swing center shaft 5 on the shaft fitting body 22.
【００１８】位置設定手段２０は、回転テーブル２径方
向に延び且つピストンロッドが軸嵌装体２２に当接する
流体圧シリンダ２９と、支持脚３の頂板２１に固着され
且つ流体圧シリンダ２９のハウジングを保持する反力受
座３０と、一端部が反力受座３０に当接し且つ他端部が
軸嵌装体２２に当接するスプリング３１と、流量調整弁
３２を有する管路３３とで構成されている。The position setting means 20 includes a fluid pressure cylinder 29 extending in the radial direction of the rotary table 2 and having a piston rod in contact with the shaft fitting 22, and a housing for the fluid pressure cylinder 29 fixed to the top plate 21 of the support leg 3. , A spring 31 in which one end abuts the reaction force seat 30 and the other end abuts the shaft fitting 22, and a conduit 33 having a flow control valve 32. Have been.
【００１９】管路３３の一端部は、流体圧シリンダ２９
のヘッド側流体室に接続され、また、管路３３の他端部
は、流体圧シリンダ２９のロッド側流体室に接続されて
おり、これらの内部には作動油が充填されている。One end of the line 33 is connected to the fluid pressure cylinder 29.
The other end of the conduit 33 is connected to the rod-side fluid chamber of the fluid pressure cylinder 29, and the inside thereof is filled with hydraulic oil.
【００２０】更に、前記の軸嵌装体２２と反力受座３０
には、頂板２１上へのダスト堆積を阻止するように保持
部材２５を覆い且つ回転テーブル２径方向への軸嵌装体
２２の移動を許容し得るように、伸縮可能なカバーＣが
取り付けられている。Further, the shaft fitting 22 and the reaction force seat 30
A telescopic cover C is attached so as to cover the holding member 25 so as to prevent dust accumulation on the top plate 21 and allow the shaft fitting 22 to move in the radial direction of the turntable 2. ing.
【００２１】図１乃至図４に示す竪型ミルでは、回転テ
ーブル２の駆動、及び回転テーブル２上への粉砕用ロー
ラ７の押圧によって、回転テーブル２上へ送給される不
定形砕料を押しつぶす際に、回転テーブル２上面と粉砕
用ローラ７外周面とが大きな不定形砕料を噛み込まれ、
粉砕用ローラ７、揺動腕６、揺動中心軸５を介して、軸
嵌装体２２に作用する回転テーブル２径方向外側への力
が、軸嵌装体２２の反回転テーブル側のスプリング３１
の圧縮変形荷重を超過すると、回転テーブル２径方向外
側へ向かって軸嵌装体２２が移動しはじめる。In the vertical mills shown in FIGS. 1 to 4, the irregular-size crushed material fed onto the rotary table 2 is driven by driving the rotary table 2 and pressing the crushing roller 7 onto the rotary table 2. When crushing, the upper surface of the rotary table 2 and the outer peripheral surface of the crushing roller 7 are caught by a large irregular crushing material,
Via the crushing roller 7, the swing arm 6, and the swing center shaft 5, a radially outward force acting on the shaft fitting body 22 in the radial direction of the rotary table 2 is applied to the spring of the shaft fitting body 22 on the side opposite to the rotary table. 31
Is exceeded, the shaft fitting 22 starts to move outward in the radial direction of the rotary table 2.
【００２２】このとき、軸嵌装体２２は、溝２８と頂板
２１の凸条部２７との嵌合により、回転テーブル２径方
向へ滑らかに案内される。At this time, the shaft fitting body 22 is smoothly guided in the radial direction of the turntable 2 by the fitting of the groove 28 and the ridge 27 of the top plate 21.
【００２３】これと同時に、流体圧シリンダ２９のロッ
ド側流体室とヘッド側流体室との間で流量調整弁３２を
介した作動油の授受が行なわれ、軸嵌装体２２の急激な
変位が抑制される。At the same time, hydraulic oil is exchanged between the rod-side fluid chamber and the head-side fluid chamber of the fluid pressure cylinder 29 via the flow control valve 32, and the abrupt displacement of the shaft fitting 22 is reduced. Is suppressed.
【００２４】よって、支持脚３上部に回転テーブル２径
方向への過大な水平力が付与されることが回避され、台
盤１４に対して支持脚３下部を締結しているボルトや台
盤１４に損傷が生じない。Therefore, an excessive horizontal force in the radial direction of the rotary table 2 is prevented from being applied to the upper portion of the support leg 3, and the bolts and the base 14 that fasten the lower portion of the support leg 3 to the base 14 are prevented. No damage to the
【００２５】また、不定形砕料の破砕や、回転テーブル
２上面と粉砕用ローラ７外周面との間からの不定形砕料
の離脱により、軸嵌装体２２に対して回転テーブル２径
方向外側へ向かう力が解消されると、反回転テーブル側
のスプリング３１の復元力で軸嵌装体２２は、もとの位
置へ戻る。The crushing of the irregularly shaped crushing material and the detachment of the irregularly shaped crushing material from between the upper surface of the rotary table 2 and the outer peripheral surface of the crushing roller 7 cause the rotation of the rotary table 2 in the radial direction relative to the shaft fitting 22. When the outward force is eliminated, the shaft fitting body 22 returns to the original position by the restoring force of the spring 31 on the side opposite to the rotary table.
【００２６】このとき、流体圧シリンダ２９のロッド側
流体室とヘッド側流体室との間での作動油の授受と、軸
嵌装体２２の回転テーブル２側のスプリング３１とによ
り、軸嵌装体２２の急激な変位が抑制される。At this time, the hydraulic oil is transferred between the rod-side fluid chamber and the head-side fluid chamber of the fluid pressure cylinder 29, and the shaft fitting is performed by the spring 31 of the shaft fitting body 22 on the rotary table 2 side. Abrupt displacement of the body 22 is suppressed.
【００２７】更に、スプリング３１と軸嵌装体２２ある
いは反力受座３０との間にライナを介装させることや、
スプリング３１を長さの異なるものに交換することによ
り、支持脚３の頂板２１に対する軸嵌装体２２の回転テ
ーブル２径方向の初期位置を調整できるので、摩耗に起
因する粉砕用ローラ７の外径縮小や、回転テーブル２上
面の周縁近傍部分に板厚減少が生じても、押圧用シリン
ダ８から適正な押圧力が粉砕用ローラ７へ付与される状
態を保持することが可能になる。Further, a liner is interposed between the spring 31 and the shaft fitting body 22 or the reaction force receiving seat 30,
By replacing the spring 31 with one having a different length, the initial position of the shaft fitting body 22 with respect to the top plate 21 of the support leg 3 in the radial direction of the rotary table 2 can be adjusted. Even if the diameter is reduced or the thickness of the rotary table 2 is reduced near the periphery of the upper surface of the rotary table 2, it is possible to maintain a state in which an appropriate pressing force is applied to the crushing roller 7 from the pressing cylinder 8.
【００２８】図５は本発明の竪型ミルの実施の形態の他
の例を示すものであり、図中、図１乃至図４と同一の符
号を付した部分は同一物を表わしている。FIG. 5 shows another example of the embodiment of the vertical mill according to the present invention. In the figure, the parts denoted by the same reference numerals as those in FIGS. 1 to 4 represent the same parts.
【００２９】この竪型ミルは、前述した位置設定手段２
０に代えて、回転テーブル２径方向に延び且つピストン
ロッドが軸嵌装体２２に当接する流体圧シリンダ３４，
３５と、支持脚３（図１参照）の頂板２１に固着され且
つ流体圧シリンダ３４，３５のハウジングを保持する反
力受座３６と、各流体圧シリンダ３４，３５ごとに設け
た作動圧力設定機能付の逆止弁３７と、流体圧シリンダ
３４のロッド側流体室に連通し且つヘッド側流体室に逆
止弁３７を介して接続したアキュムレータ３８と、流体
圧シリンダ３５のベッド側流体室に連通し且つロッド側
流体室に逆止弁３７を介して接続したアキュムレータ３
９とによって、位置設定手段４０を構成している。This vertical mill employs the position setting means 2 described above.
0, a fluid pressure cylinder 34 extending in the radial direction of the rotary table 2 and in which the piston rod abuts the shaft fitting 22.
35, a reaction force receiving seat 36 fixed to the top plate 21 of the support leg 3 (see FIG. 1) and holding a housing of the hydraulic cylinders 34, 35, and an operating pressure setting provided for each of the hydraulic cylinders 34, 35 A check valve 37 having a function, an accumulator 38 communicating with the rod-side fluid chamber of the fluid pressure cylinder 34 and connected to the head-side fluid chamber via the check valve 37, and a bed-side fluid chamber of the fluid pressure cylinder 35 The accumulator 3 which is in communication with and connected to the rod-side fluid chamber via a check valve 37
9 constitute the position setting means 40.
【００３０】図５に示す竪型ミルでは、回転テーブル２
上面と粉砕用ローラ７外周面の間に形状が大きな不定形
砕料を噛み込まれて、軸嵌装体２２に作用する力によっ
て、流体圧シリンダ３４，３５のロッド側流体室あるい
はヘッド側流体室の内圧が、逆止弁３７の作動圧力設定
値を超過すると、アキュムレータ３８，３９と流体圧シ
リンダ３４，３５のロッド側流体室またはヘッド側流体
室との間で、作動油の授受が行なわれ、これにより、軸
嵌装体２２が緩やかに移動しはじめる。In the vertical mill shown in FIG.
The irregularly shaped crushing material having a large shape is caught between the upper surface and the outer peripheral surface of the crushing roller 7, and the rod-side fluid chamber or the head-side fluid of the fluid pressure cylinders 34, 35 is generated by the force acting on the shaft fitting 22. When the internal pressure of the chamber exceeds the set value of the operating pressure of the check valve 37, hydraulic oil is transferred between the accumulators 38, 39 and the rod-side fluid chambers or the head-side fluid chambers of the fluid pressure cylinders 34, 35. As a result, the shaft fitting body 22 starts to move slowly.
【００３１】よって、支持脚３上部に回転テーブル２径
方向への過大な水平力が付与されることが回避され、台
盤１４に対して支持脚３下部を締結しているボルトや台
盤１４に損傷が生じない。Therefore, an excessive horizontal force in the radial direction of the turntable 2 is prevented from being applied to the upper portion of the support leg 3, and the bolts and the base 14 that fasten the lower portion of the support leg 3 to the base 14 are prevented. No damage to the
【００３２】更に、流体圧シリンダ３４，３５により、
支持脚３（図１参照）の頂板２１に対する軸嵌装体２２
の回転テーブル２径方向の初期位置を調整できるので、
摩耗に起因する粉砕用ローラ７の外径縮小や、回転テー
ブル２上面の周縁近傍部分に板厚減少が生じても、押圧
用シリンダ８（図１参照）から適正な押圧力が粉砕用ロ
ーラ７へ付与される状態を保持することが可能になる。Further, by the fluid pressure cylinders 34 and 35,
Shaft fitting 22 to top plate 21 of support leg 3 (see FIG. 1)
The initial position of the rotary table 2 in the radial direction can be adjusted.
Even if the outer diameter of the crushing roller 7 is reduced due to wear or the thickness of the crushing roller 7 is reduced near the periphery of the upper surface of the turntable 2, an appropriate pressing force is applied from the pressing cylinder 8 (see FIG. 1). Can be maintained.
【００３３】なお、本発明の竪型ミルは上述した実施の
形態のみに限定されるものではなく、本発明の要旨を逸
脱しない範囲内において変更を加え得ることは勿論であ
る。It should be noted that the vertical mill of the present invention is not limited to the above-described embodiment, but may be modified without departing from the scope of the present invention.
【００３４】[0034]
【発明の効果】以上述べたように、本発明の竪型ミルに
よれば下記のような種々の優れた効果を奏し得る。As described above, according to the vertical mill of the present invention, the following various excellent effects can be obtained.
【００３５】（１）軸受に付与される回転テーブル径方
向への力が設定した値を超過した再に、位置設定手段に
よって軸受の変位を許容するので、回転テーブル径方向
への過大な力が支持脚へ作用することを回避できる。(1) When the force applied to the bearing in the radial direction of the rotary table exceeds the set value, the displacement of the bearing is allowed by the position setting means, so that an excessive force in the radial direction of the rotary table is generated. Acting on the support legs can be avoided.
【００３６】（２）支持脚に対する軸受の回転テーブル
径方向の初期位置を調整できるので、摩耗に起因する粉
砕用ローラの外径縮小や、回転テーブル上面の周縁近傍
部分に板厚減少が生じても、押圧手段から適正な押圧力
が粉砕用ローラへ付与される状態を保持することが可能
になる。(2) Since the initial position of the bearing with respect to the supporting leg in the radial direction of the rotary table can be adjusted, the outer diameter of the crushing roller is reduced due to abrasion, and the thickness of the rotary table near the periphery of the upper surface is reduced. Also, it is possible to maintain a state in which an appropriate pressing force is applied from the pressing means to the crushing roller.
【図１】本発明の竪型ミルの実施の形態の一例を示す部
分縦断面図である。FIG. 1 is a partial vertical sectional view showing an example of an embodiment of a vertical mill of the present invention.
【図２】図１における軸受を示す横断面図である。FIG. 2 is a transverse sectional view showing the bearing in FIG.
【図３】図１における軸受及び位置設定機構を示す部分
切断斜視図である。FIG. 3 is a partially cutaway perspective view showing a bearing and a position setting mechanism in FIG. 1;
【図４】図１における位置設定手段を示す概念図であ
る。FIG. 4 is a conceptual diagram showing a position setting unit in FIG.
【図５】本発明の竪型ミルに適用する位置設定手段の他
の例を示す概念図である。FIG. 5 is a conceptual diagram showing another example of the position setting means applied to the vertical mill of the present invention.
【図６】従来の竪型ミルの一例を示す縦断面図である。FIG. 6 is a longitudinal sectional view showing an example of a conventional vertical mill.
１ ケーシング ２ 回転テーブル ３ 支持脚 ５ 揺動中心軸 ６ 揺動腕 ７ 粉砕用ローラ ８ 押圧シリンダ（押圧手段） １９ 軸受 ２０ 位置設定手段 ２９ 流体圧シリンダ ３１ スプリング ３２ 流量調整弁 ３４ 流体圧シリンダ ３５ 流体圧シリンダ ３７ 逆止弁 ３８ アキュムレータ ３９ アキュムレータ ４０ 位置設定手段 DESCRIPTION OF SYMBOLS 1 Casing 2 Rotary table 3 Support leg 5 Oscillating center axis 6 Oscillating arm 7 Crushing roller 8 Pressing cylinder (pressing means) 19 Bearing 20 Position setting means 29 Fluid pressure cylinder 31 Spring 32 Flow control valve 34 Fluid pressure cylinder 35 Fluid Pressure cylinder 37 check valve 38 accumulator 39 accumulator 40 position setting means
Claims (3)
ング内部に配置した回転テーブルと、ケーシング外部に
立設した支持脚と、該支持脚に回転テーブル径方向へ移
動可能に取り付けた軸受と、基端部が回転テーブル接線
方向へ延びる揺動中心軸により前記の軸受に枢支され且
つ回転テーブル上方でケーシング胴部を貫通する揺動腕
と、揺動腕先端部に回転テーブル上面を転動し得るよう
に枢支した粉砕用ローラと、揺動腕先端部を回転テーブ
ルへ向かって付勢する押圧手段と、前記の軸受に付与さ
れる回転テーブル径方向への力が予め設定した値を超過
したときに軸受の変位を許容する位置設定手段とを備え
てなることを特徴とする竪型ミル。1. A rotary table disposed inside a casing to which irregular shaped crushing material is supplied from above, a support leg erected outside the casing, and a bearing mounted on the support leg so as to be movable in a radial direction of the rotary table. A swing arm whose base end is pivotally supported by the bearing by a swing center axis extending in the tangential direction of the turntable and penetrates the casing body above the turntable; A crushing roller pivotally supported so as to be movable; a pressing means for urging the tip of the oscillating arm toward the rotary table; and a force in the rotary table radial direction applied to the bearing is a predetermined value. A vertical position mill comprising: a position setting means for allowing displacement of the bearing when the load exceeds the limit.
に応じて伸縮可能なスプリング並びに流体圧シリンダ
と、該流体圧シリンダの各流体室を相互に連通する流量
調整弁とによって位置設定手段を構成した請求項１に記
載の竪型ミル。2. A spring interposed between the bearing and the supporting leg and capable of expanding and contracting in accordance with the movement of the bearing, a fluid pressure cylinder, and a flow control valve communicating the fluid chambers of the fluid pressure cylinder with each other. 2. The vertical mill according to claim 1, wherein said means comprises means.
に応じて伸縮可能な流体圧シリンダと、該流体圧シリン
ダの一方の流体室に連通し且つ他方の流体室に作動圧力
設定機能を有する逆止弁を介して接続したアキュムレー
タとによって位置設定手段を構成した請求項１の記載の
竪型ミル。3. A fluid pressure cylinder interposed between a bearing and a support leg and capable of expanding and contracting in accordance with the movement of the bearing, and an operating pressure setting function communicating with one fluid chamber of the fluid pressure cylinder and the other fluid chamber. 2. The vertical mill according to claim 1, wherein the position setting means is constituted by an accumulator connected via a check valve having the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000361547A JP2002159875A (en) | 2000-11-28 | 2000-11-28 | Vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000361547A JP2002159875A (en) | 2000-11-28 | 2000-11-28 | Vertical mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002159875A true JP2002159875A (en) | 2002-06-04 |
Family
ID=18832967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000361547A Pending JP2002159875A (en) | 2000-11-28 | 2000-11-28 | Vertical mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002159875A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010511502A (en) * | 2006-12-08 | 2010-04-15 | ポリシウス アクチェンゲゼルシャフト | Roller mill |
| JP2010519036A (en) * | 2007-02-28 | 2010-06-03 | ポリシウス アクチェンゲゼルシャフト | Roller mill |
| JP2011088116A (en) * | 2009-10-26 | 2011-05-06 | Ihi Corp | Vertical roller mill |
| CN102284321A (en) * | 2011-08-11 | 2011-12-21 | 一重集团大连设计研究院有限公司 | Pressing protective device for large-scale compression arm grinding equipment |
| JP2012500723A (en) * | 2008-08-25 | 2012-01-12 | ポリシウス アクチェンゲゼルシャフト | Roller mill |
| CN102600934A (en) * | 2012-03-23 | 2012-07-25 | 长春发电设备总厂 | Turning-out device for maintenance of milling roller of medium-speed wheeled coal mill |
| WO2013042547A1 (en) * | 2011-09-22 | 2013-03-28 | 三菱重工業株式会社 | Vertical mill |
| JP2020040015A (en) * | 2018-09-10 | 2020-03-19 | 株式会社Ihi | Bracket of vertical mill, and vertical mill |
-
2000
- 2000-11-28 JP JP2000361547A patent/JP2002159875A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010511502A (en) * | 2006-12-08 | 2010-04-15 | ポリシウス アクチェンゲゼルシャフト | Roller mill |
| JP2010519036A (en) * | 2007-02-28 | 2010-06-03 | ポリシウス アクチェンゲゼルシャフト | Roller mill |
| JP2012500723A (en) * | 2008-08-25 | 2012-01-12 | ポリシウス アクチェンゲゼルシャフト | Roller mill |
| JP2011088116A (en) * | 2009-10-26 | 2011-05-06 | Ihi Corp | Vertical roller mill |
| CN102284321A (en) * | 2011-08-11 | 2011-12-21 | 一重集团大连设计研究院有限公司 | Pressing protective device for large-scale compression arm grinding equipment |
| WO2013042547A1 (en) * | 2011-09-22 | 2013-03-28 | 三菱重工業株式会社 | Vertical mill |
| JP2013066859A (en) * | 2011-09-22 | 2013-04-18 | Mitsubishi Heavy Ind Ltd | Vertical mill |
| CN103747876A (en) * | 2011-09-22 | 2014-04-23 | 三菱重工业株式会社 | Vertical mill |
| CN103747876B (en) * | 2011-09-22 | 2015-04-08 | 三菱日立电力***株式会社 | Vertical mill |
| CN102600934A (en) * | 2012-03-23 | 2012-07-25 | 长春发电设备总厂 | Turning-out device for maintenance of milling roller of medium-speed wheeled coal mill |
| JP2020040015A (en) * | 2018-09-10 | 2020-03-19 | 株式会社Ihi | Bracket of vertical mill, and vertical mill |
| JP7172314B2 (en) | 2018-09-10 | 2022-11-16 | 株式会社Ihi | Vertical mill bracket and vertical mill |
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