JP4665308B2 - Vertical mill - Google Patents

Vertical mill Download PDF

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Publication number
JP4665308B2
JP4665308B2 JP2000361546A JP2000361546A JP4665308B2 JP 4665308 B2 JP4665308 B2 JP 4665308B2 JP 2000361546 A JP2000361546 A JP 2000361546A JP 2000361546 A JP2000361546 A JP 2000361546A JP 4665308 B2 JP4665308 B2 JP 4665308B2
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Japan
Prior art keywords
rotary table
support leg
casing
casing body
swing arm
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 - Fee Related
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JP2000361546A
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Japanese (ja)
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JP2002159874A (en
Inventor
新悟 向井
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IHI Corp
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IHI Corp
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Description

【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。
【０００２】
【従来の技術】
図４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。
【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。
【０００４】
図４に示す竪型ミルでは、モータ１１，１３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。
【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１２及び送出管１０を経てケーシング１外方へ搬送される。
【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。
【０００７】
【発明が解決しようとする課題】
しかしながら、図４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が損傷することがある。
【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。
【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、該支持脚の上端部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って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、支持脚をケーシング胴部に連結する変位抑制手段とを備え、該変位抑制手段を、支持脚とケーシング胴部に連結され且つ回転テーブル径方向へ伸縮可能なスプリングによって構成している。
【００１０】
本発明の請求項２に記載の竪型ミルでは、変位抑制手段が、支持脚とケーシング胴部に連結され且つ回転テーブル径方向へ伸縮可能な流体圧シリンダと、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を有している。
【００１１】
本発明の請求項３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、該支持脚の上端部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って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、支持脚をケーシング胴部に連結する変位抑制手段とを備え、該変位抑制手段を、支持脚とケーシング胴部に連結され且つ回転テーブル径方向へ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付きの逆止弁を介して接続したアキュムレータとによって構成している。
【００１３】
本発明の請求項１乃至請求項３に記載の竪型ミルのいずれにおいても、支持脚をケーシング胴部に連結する変位抑制手段によって、支持脚上部の回転テーブル径方向への変位を抑え、形状が大きな不定形砕料が、回転テーブル上面と粉砕用ローラ外周面との間へ噛み込まれることに対応する。
【００１４】
【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。
【００１５】
図１及び図２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４と同一の符号を付した部分は同一物を表わしている。
【００１６】
この竪型ミルは、ケーシング１胴部に付帯して周方向へ延びるフレーム１９と支持脚３との間に介在する変位抑制手段２０を備えている。
【００１７】
変位抑制手段２０は、ピストンロッドが回転テーブル２接線方向へ延びるピン２１を介して上記のフレーム１９に枢支され且つハウジングがピン２１に平行なピン２２を介して支持脚３の上端寄り部分に枢支された流体圧シリンダ２３と、一端がフレーム１９に係止され且つ他端が支持脚３の上端寄り部分に係止されたスプリング２４と、流量調整弁２５を有する管路２６とで構成されている。
【００１８】
管路２６の一端部は、流体圧シリンダ２３のヘッド側流体室に接続され、また、管路２６の他端部は、流体圧シリンダ２３のロッド側流体室に接続され、これらの内部には作動油が充填されている。
【００１９】
図１及び図２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、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上部に伝達されようとする回転テーブル２径方向への変位を、ケーシング１胴部のフレーム１９と支持脚３とを連結しているスプリング２４の耐圧縮性及び耐伸張性によって抑制する。
【００２０】
また、スプリング２４の耐変形荷重を超過する回転テーブル２径方向への力が支持脚３に対して瞬間的に付与されると、流体圧シリンダ２３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２５を介した作動油の授受が行なわれて、支持脚３へ作用する回転テーブル２径方向の力が緩和され、当該支持脚３の急激な変位が抑止される。
【００２１】
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。
【００２２】
更に、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、支持脚３に対する回転テーブル２径方向への力が解消されると、スプリング２４の復元力で支持脚３は、もとの直立した状態に復帰する。
【００２３】
このとき、流体圧シリンダ２３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により、支持脚３の急激な変位が抑止される。
【００２４】
図３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及び図２と同一の符号を付した部分は同一物を表わしている。
【００２５】
この竪型ミルは、前述した変位抑制手段２０に代えて、ピストンロッドがピン２１を介してフレーム１９に枢支され且つハウジングがピン２２を介して支持脚３の上端寄り部分に枢支された流体圧シリンダ２３と、各流体圧シリンダ２３に付帯する作動圧力設定機能付の逆止弁２７及びアキュムレータ２８とによって、変位抑制手段２９を構成している。
【００２６】
アキュムレータ２８は、流体圧シリンダ２３のロッド側流体室に対して連通し且つヘッド側流体室に逆止弁２７を介して接続され、これらの内部には作動油が充填されている。
【００２７】
図３に示す竪型ミルでは、回転テーブル２上の不定形砕料を押しつぶす際に、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上部に付与されようとする変位を、作動圧力設定機能付の逆止弁２７が流体圧シリンダ２３のヘッド側流体室からの作動油の流出を阻止することによって抑制する。
【００２８】
支持脚３に作用する力によって、流体圧シリンダ２３のヘッド側流体室の内圧が、逆止弁２７の作動圧力設定値を超過すると、流体圧シリンダ２３のヘッド側流体室とアキュムレータ２８との間で、作動油の授受が行なわれ、これにより、支持脚３の微小変位が許容される。
【００２９】
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。
【００３０】
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。
【００３１】
【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、支持脚とケーシング胴部とを連結する変位抑制手段により、支持脚上部の回転テーブル径方向への変位を抑制し、回転テーブル径方向への過大な力が支持脚に作用することを回避するので、支持脚などに損傷が生じない、という優れた効果を奏し得る。
【図面の簡単な説明】
【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。
【図２】図１における変位抑制手段を示す概念図である。
【図３】本発明の竪型ミルに適用する変位抑制手段の他の例を示す概念図である。
【図４】従来の竪型ミルの一例を示す縦断面図である。
【符号の説明】
１ ケーシング
２ 回転テーブル
３ 支持脚
４ 軸受
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）
２０ 変位抑制手段
２３ 流体圧シリンダ
２４ スプリング
２５ 流量調整弁
２７ 逆止弁
２８ アキュムレータ
２９ 変位抑制手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical mill.
[0002]
[Prior art]
FIG. 4 shows an example of a conventional vertical mill. The vertical mill includes a rotary table 2 disposed in the vicinity of the inner bottom of the casing 1, support legs 3 standing outside the casing 1, and the support legs. 3 and a swing 4 that is pivotally supported by the bearing 4 by a swing center shaft 5 whose base end portion extends in the tangential direction of the turntable 2 and passes through the body of the casing 1 above the turntable 2. An arm 6, a grinding roller 7 pivotally supported on the tip of the swing arm 6 so that the upper surface of the rotary table 2 can roll, and a pressing cylinder for biasing the tip of the swing arm 6 toward the turn table 2 8, a feed pipe 9 that passes through the body of the casing 1 and feeds irregular crushed material such as limestone from the outside onto the rotary table 2, and penetrates the upper part of the casing 1 and is pulverized to a predetermined particle size. A delivery pipe 10 for delivering the crushed material to the outside; A motor 11 that is provided outside the casing 1 and that drives the rotary table 2; a classifier 12 that is disposed on the inner upper part of the casing 1; and a motor 13 that is provided on the casing 1 and that drives the classifier 12; The casing 1 is supported by a bracket (not shown) and a base 14 to which the lower end portion of the support leg 3 is fastened, and an air flow is fed to the inner lower portion of the casing 1. It is like that.
[0003]
The pressing cylinder 8 has connecting shafts 17 and 18 extending in the tangential direction of the rotary table 2 with a housing 15 at a portion near the lower end of the support leg 3 and a piston rod 16 at a middle portion in the longitudinal direction of the swing arm 6. It is pivotally supported.
[0004]
In the vertical mill shown in FIG. 4, while the rotary table 2 and the classifier 12 are rotated by the motors 11 and 13, the irregular crushed material is fed from the charging tube 9 onto the rotary table 2, and the tip of the swing arm 6 is moved. When the pressing cylinder 8 is operated so as to be urged toward the rotary table 2, the crushing roller 7 crushes the irregular pulverized material dispersed near the periphery of the rotary table 2 by centrifugal force.
[0005]
Further, the pulverized material crushed to a predetermined particle diameter is conveyed to the outside of the casing 1 through the classifier 12 and the delivery pipe 10 by the air flow fed to the lower part inside the casing 1.
[0006]
Further, the pulverized material having a particle size larger than the predetermined particle size is selected by the classifier 12, falls onto the rotary table 2, and is crushed by the pulverizing roller 7.
[0007]
[Problems to be solved by the invention]
However, in the vertical mill shown in FIG. 4, when an irregular shaped crush 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 crushing roller 7 and the swing arm 6. An excessive horizontal force acting on the upper part of the rotary table 2 in the radial direction acts on the upper part of the support leg 3 via the swinging center shaft 5 and the bearing 4, and the lower part of the support leg 3 is fastened to the base plate 14. The bolts and the base plate 14 may be damaged.
[0008]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a vertical mill in which excessive force in the radial direction of the rotary table does not act on the support legs.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, in the vertical mill according to claim 1 of the present invention, a rotary table disposed inside the casing to which the irregular crushed material is supplied from above, a support leg erected outside the casing, A bearing attached to the upper end of the support leg, a swinging arm pivotally supported by the bearing by a swinging central axis extending in the tangential direction of the turntable and penetrating the casing body above the turntable; A crushing roller pivotally supported at the arm tip so that the upper surface of the rotary table can roll, a pressing means for urging the tip of the swing arm toward the rotary table, and a displacement connecting the support leg to the casing body The displacement suppression means is constituted by a spring connected to the support leg and the casing body and capable of expanding and contracting in the radial direction of the rotary table.
[0010]
In the vertical mill according to the second aspect of the present invention, the displacement suppressing means includes a fluid pressure cylinder connected to the support leg and the casing body and capable of expanding and contracting in the radial direction of the rotary table, and each fluid chamber of the fluid pressure cylinder. And a flow rate adjusting valve communicating with each other.
[0011]
In the vertical mill according to claim 3 of the present invention, a rotary table disposed inside the casing to which the irregular crushed material is supplied from above, a support leg standing outside the casing, and an upper end portion of the support leg A mounted bearing, a swinging arm pivotally supported by the bearing by a swinging central shaft extending in the tangential direction of the turntable and penetrating the casing body above the turntable, and a top surface of the turntable at the tip of the swinging arm A crushing roller pivotally supported so as to be able to roll, a pressing means for urging the tip of the swing arm toward the rotary table, and a displacement suppressing means for connecting the support leg to the casing body, A displacement suppression means is connected to the support leg and the casing body and is capable of expanding and contracting in the radial direction of the rotary table, and communicates with one fluid chamber of the fluid pressure cylinder and has an operating pressure setting function with the other fluid chamber. Reverse with And it constituted by an accumulator which is connected via a valve.
[0013]
In any of the vertical mills according to claims 1 to 3 of the present invention, the displacement restraining means for connecting the support leg to the casing body portion suppresses the displacement of the upper part of the support leg in the radial direction of the rotary table, thereby reducing the shape. This corresponds to the fact that a large-sized irregular pulverized material is caught between the upper surface of the rotary table and the outer peripheral surface of the grinding roller.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1 and 2 show an example of an embodiment of a vertical mill according to the present invention. In the figure, the same reference numerals as those in FIG. 4 denote the same parts.
[0016]
This saddle type mill is provided with a displacement restraining means 20 interposed between the frame 19 and the support leg 3 attached to the body part of the casing 1 and extending in the circumferential direction.
[0017]
The displacement restraining means 20 is provided at a portion near the upper end of the support leg 3 via a pin 22 whose piston rod is pivotally supported by the frame 19 via a pin 21 extending in the tangential direction of the rotary table 2 and whose housing is parallel to the pin 21. A fluid pressure cylinder 23 pivotally supported, a spring 24 having one end locked to the frame 19 and the other end locked to a portion near the upper end of the support leg 3, and a pipe line 26 having a flow rate adjusting valve 25. Has been.
[0018]
One end of the conduit 26 is connected to the head side fluid chamber of the fluid pressure cylinder 23, and the other end of the conduit 26 is connected to the rod side fluid chamber of the fluid pressure cylinder 23. Filled with hydraulic oil.
[0019]
In the vertical mill shown in FIG. 1 and FIG. 2, when crushing the irregular crushing material fed onto the rotary table 2 by driving the rotary table 2 and pressing the crushing roller 7 onto the rotary table 2. The displacement in the radial direction of the rotary table 2 to be transmitted to the upper part of the support leg 3 via the grinding roller 7, the swing arm 6, the swing center shaft 5, and the bearing 4 is transmitted to the frame 19 of the casing 1 body. It is suppressed by the compression resistance and extension resistance of the spring 24 connecting the support leg 3 and the support leg 3.
[0020]
Further, when a force in the radial direction of the rotary table 2 that exceeds the deformation load of the spring 24 is momentarily applied to the support leg 3, the rod-side fluid chamber and the head-side fluid chamber of the fluid pressure cylinder 23 are separated. In the meantime, the hydraulic oil is exchanged via the flow rate adjusting valve 25, the force in the radial direction of the rotary table 2 acting on the support leg 3 is relieved, and the sudden displacement of the support leg 3 is suppressed.
[0021]
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 plate 14 that fasten the lower portion of the support leg 3 to the base plate 14 are damaged. Does not occur.
[0022]
Furthermore, the force in the radial direction of the rotary table 2 with respect to the support leg 3 is eliminated by the crushing of the irregular crushing material and the separation of the irregular shaped crushing material between the upper surface of the rotary table 2 and the outer peripheral surface of the crushing roller 7. Then, the support leg 3 returns to the original upright state by the restoring force of the spring 24.
[0023]
At this time, sudden displacement of the support leg 3 is suppressed by the transfer of hydraulic oil between the rod-side fluid chamber and the head-side fluid chamber of the fluid pressure cylinder 23.
[0024]
FIG. 3 shows another example of the embodiment of the vertical mill of the present invention. In the figure, the same reference numerals as those in FIGS. 1 and 2 denote the same parts.
[0025]
In this saddle type mill, instead of the displacement suppressing means 20 described above, the piston rod is pivotally supported on the frame 19 via a pin 21 and the housing is pivotally supported on a portion near the upper end of the support leg 3 via a pin 22. A displacement suppression means 29 is configured by the fluid pressure cylinder 23, the check valve 27 with an operating pressure setting function attached to each fluid pressure cylinder 23, and the accumulator 28.
[0026]
The accumulator 28 communicates with the rod-side fluid chamber of the fluid pressure cylinder 23 and is connected to the head-side fluid chamber via a check valve 27, and the inside is filled with hydraulic oil.
[0027]
In the vertical mill shown in FIG. 3, when crushing the irregular crushing material on the rotary table 2, the crushing roller 7, the oscillating arm 6, the oscillating center shaft 5, and the bearing 4 are placed on the upper portion of the support leg 3. The displacement to be applied is suppressed by the check valve 27 having an operating pressure setting function preventing the hydraulic oil from flowing out from the head side fluid chamber of the fluid pressure cylinder 23.
[0028]
When the internal pressure of the head side fluid chamber of the fluid pressure cylinder 23 exceeds the operating pressure set value of the check valve 27 due to the force acting on the support leg 3, there is a gap between the head side fluid chamber of the fluid pressure cylinder 23 and the accumulator 28. Thus, the hydraulic oil is exchanged, thereby allowing a minute displacement of the support leg 3.
[0029]
Therefore, it is avoided that an excessive horizontal force in the radial direction of the rotary table 2 is applied to the upper portion of the support leg 3, and the bolts and the base plate 14 that fasten the lower portion of the support leg 3 to the base plate 14 are damaged. Does not occur.
[0030]
It should be noted that the vertical mill of the present invention is not limited to the above-described embodiment, and it goes without saying that modifications can be made without departing from the scope of the present invention.
[0031]
【The invention's effect】
As described above, according to the vertical mill of the present invention, the displacement suppression means for connecting the support leg and the casing body portion suppresses the displacement of the upper part of the support leg in the radial direction of the rotary table, and the rotary table radial direction Therefore, it is possible to obtain an excellent effect that the support leg or the like is not damaged.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal sectional view showing an example of an embodiment of a vertical mill of the present invention.
FIG. 2 is a conceptual diagram showing displacement suppression means in FIG.
FIG. 3 is a conceptual diagram showing another example of displacement suppressing means applied to the vertical mill of the present invention.
FIG. 4 is a longitudinal sectional view showing an example of a conventional vertical mill.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 2 Rotary table 3 Support leg 4 Bearing 5 Oscillation center axis 6 Oscillation arm 7 Grinding roller 8 Press cylinder (pressing means)
20 Displacement suppression means 23 Fluid pressure cylinder 24 Spring 25 Flow rate adjustment valve 27 Check valve 28 Accumulator 29 Displacement suppression means

Claims (3)

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、該支持脚の上端部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って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、支持脚をケーシング胴部に連結する変位抑制手段とを備え、該変位抑制手段を、支持脚とケーシング胴部に連結され且つ回転テーブル径方向へ伸縮可能なスプリングによって構成したことを特徴とする竪型ミル。A rotary table arranged inside the casing to which the irregular crushed powder is supplied from above, a support leg standing outside the casing, a bearing attached to the upper end of the support leg, and a base end in the tangential direction of the rotary table A swing arm pivotally supported by a bearing by an extending swing center shaft and penetrating the casing body above the rotary table, and a grinding roller pivotally supported so that the upper surface of the rotary table can roll on the tip of the swing arm A pressing means for urging the tip of the swing arm toward the rotary table; and a displacement suppression means for connecting the support leg to the casing body, the displacement suppression means being connected to the support leg and the casing body. A vertical mill characterized by comprising a spring that can be expanded and contracted in the radial direction of the rotary table . 変位抑制手段が、支持脚とケーシング胴部に連結され且つ回転テーブル径方向へ伸縮可能な流体圧シリンダと、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を有している請求項１に記載の竪型ミル。 The displacement suppressing means has a fluid pressure cylinder connected to the support leg and the casing body and capable of expanding and contracting in the radial direction of the rotary table, and a flow rate adjusting valve for communicating each fluid chamber of the fluid pressure cylinder with each other. The vertical mill according to claim 1. 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、該支持脚の上端部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って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、支持脚をケーシング胴部に連結する変位抑制手段とを備え、該変位抑制手段を、支持脚とケーシング胴部に連結され且つ回転テーブル径方向へ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付きの逆止弁を介して接続したアキュムレータとによって構成したことを特徴とする竪型ミル。 A rotary table arranged inside the casing to which the irregular crushed powder is supplied from above, a support leg standing outside the casing, a bearing attached to the upper end of the support leg, and a base end in the tangential direction of the rotary table A swing arm pivotally supported by a bearing by an extending swing center shaft and penetrating the casing body above the rotary table, and a grinding roller pivotally supported so that the upper surface of the rotary table can roll on the tip of the swing arm A pressing means for urging the tip of the swing arm toward the rotary table; and a displacement suppression means for connecting the support leg to the casing body, the displacement suppression means being connected to the support leg and the casing body. And a fluid pressure cylinder that can expand and contract in the radial direction of the rotary table, and an accumulator that communicates with one fluid chamber of the fluid pressure cylinder and is connected to the other fluid chamber via a check valve with an operating pressure setting function. Vertical mill, characterized in that the structure I.
JP2000361546A 2000-11-28 2000-11-28 Vertical mill Expired - Fee Related JP4665308B2 (en)

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DE102006058012A1 (en) * 2006-12-08 2008-06-19 Polysius Ag roller mill
DE102008010652B3 (en) * 2008-02-22 2009-11-05 Polysius Ag Power transmission system and roller mill
CN104415825B (en) * 2013-09-02 2017-07-25 上海意丰机电科技开发有限公司 A kind of spring charging device
JP2019072672A (en) * 2017-10-17 2019-05-16 宇部興産機械株式会社 Vertical mill
CN107715998A (en) * 2017-12-05 2018-02-23 河南黎明重工科技股份有限公司 Grinding roller pressure structure suitable for vertical roll grinder

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JPS62204863A (en) * 1986-03-05 1987-09-09 川崎重工業株式会社 Vertical mill
JPH11123340A (en) * 1997-10-22 1999-05-11 Kawasaki Heavy Ind Ltd Fitting structure for hydraulic cylinder for roller pressing in vertical roller mill

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JPH074541B2 (en) * 1988-08-19 1995-01-25 宇部興産株式会社 Vertical crusher
JP2000126631A (en) * 1998-10-23 2000-05-09 Babcock Hitachi Kk Roller crusher

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JPS62204863A (en) * 1986-03-05 1987-09-09 川崎重工業株式会社 Vertical mill
JPH11123340A (en) * 1997-10-22 1999-05-11 Kawasaki Heavy Ind Ltd Fitting structure for hydraulic cylinder for roller pressing in vertical roller mill

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