JPH07838A - Rotating crusher - Google Patents
Rotating crusherInfo
- Publication number
- JPH07838A JPH07838A JP14083893A JP14083893A JPH07838A JP H07838 A JPH07838 A JP H07838A JP 14083893 A JP14083893 A JP 14083893A JP 14083893 A JP14083893 A JP 14083893A JP H07838 A JPH07838 A JP H07838A
- Authority
- JP
- Japan
- Prior art keywords
- concave
- support
- gradient
- upper body
- rotary crusher
- 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
- Crushing And Grinding (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、岩石や鉱石などを破砕
するのに使用される旋動破砕機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary crusher used for crushing rocks or ores.
【０００２】[0002]
【従来の技術】機体の上部胴体内に着脱可能に嵌着され
た円錐筒状のコンケーブ内で、円錐台状のマントルを偏
心旋回させて、上部から供給された岩石や鉱石等の原材
料を、コンケーブとマントルとの間で挟圧破砕する旋動
破砕機において、そのコンケーブを上部胴体内に保持す
る構成としては、大別して次の２つの形態がある。2. Description of the Related Art A frusto-conical mantle is eccentrically rotated in a conical tubular concave that is removably fitted in the upper fuselage of a fuselage, and raw materials such as rocks and ores supplied from the upper part, In a rotary crusher that crushes by crushing between a concave and a mantle, there are roughly two types of configurations for holding the concave in the upper body.
【０００３】１つの形態は、その保持構成を説明するた
めの要部断面図である〔図４〕に示すように、コンケー
ブを下方から支持するものである。〔図４〕に示す旋動
破砕機では、複数の締結ボルト(24)を介して上部胴体(2
1)の下端部に取着された支え輪(23)によって、コンケー
ブ(22)を下方から支持して、機体(20)の上部胴体(21)内
に固定させている。更にまた、ここでは図示を省略した
が、コンケーブ(22)下端と接触する支え輪(23)の上面部
には、同じく図示省略のマントルの回転方向で上り勾配
となる複数の傾斜面が、つまり破砕の反力が作用する方
向で締まり勝手となる傾斜面が、周方向で断続して形成
されている。この旋動破砕機では、支え輪(23)を介する
締結ボルト(24)の軸力にて、取付け時におけるコンケー
ブ(22)の上部胴体(21)に対する固定力を確保する。ま
た、破砕の継続によって、コンケーブ(22)と上部胴体(2
1)との間に生じた緩みは、破砕の反力を利用したコンケ
ーブ(22)と支え輪(23)との相対滑りによって当該コンケ
ーブ(22)を押し上げ、自律的に増締・補正することがで
きる。In one form, a concave is supported from below as shown in FIG. 4 which is a sectional view of an essential part for explaining the holding structure. In the rotary crusher shown in [Fig. 4], the upper fuselage (2
A support ring (23) attached to the lower end of (1) supports the concave (22) from below and fixes it in the upper body (21) of the airframe (20). Furthermore, although not shown here, the upper surface of the support ring (23) that comes into contact with the lower end of the concave (22) is also provided with a plurality of inclined surfaces that are upwardly inclined in the rotation direction of the mantle (not shown). An inclined surface that is self-locking in the direction in which the reaction force of crushing acts is formed intermittently in the circumferential direction. In this rotary crusher, the fastening force of the fastening bolt (24) via the support ring (23) secures the fixing force of the concave (22) to the upper body (21) at the time of mounting. In addition, by continuing the crushing, the concave (22) and the upper fuselage (2)
The slack that occurs between (1) and the concave (22) is pushed up by the relative sliding between the concave (22) and the support ring (23) that utilizes the reaction force of crushing, and it is autonomously tightened and corrected. You can
【０００４】他の１つの形態は、例えば、実公昭56−13
92号および特公昭60-78649号公報に開示されているよう
に、コンケーブを上方から支持するものである。前者の
旋動破砕機（実公昭56−1392号）では、その正断面図で
ある〔図５〕の(a)図に示すように、機体(30)の上部胴
体(31)内に嵌着させるコンケーブ(32)の上部外周に環状
鍔(32a) を設ける一方、 (a)図の要部拡大図である (b)
図に示すように、その上部胴体(31)上に、ピポット支持
点(33a) を支点として揺動可能とされ、かつ基端部を締
付けボルト(34)で締付けられた複数の支持レバー(33)を
配設し、それら支持レバー(33)の先端部を、コンケーブ
(32)の環状鍔(32a) の下面に当接させて、コンケーブ(3
2)を上方から支持して上部胴体(31)内に固定させてい
る。更に、同上部胴体(31)上に、コンケーブ(32)の環状
鍔(32)下方に所要間隙をおいて、複数の回転ローラ(35)
を配設している。この旋動破砕機では、支持レバー(33)
を介する締結ボルト(34)の軸力にて、取付け時における
コンケーブ(32)の上部胴体(31)に対する固定力を確保す
る。また、破砕の継続によって、コンケーブ(32)と上部
胴体(31)との間に緩みが生じた場合には、稼働を中断し
て各締結ボルト(34)の締め増しを行う。また、その締め
増し際して、コンケーブ(32)を回転ローラ(35)で支持し
て適宜回動した上で固定することで、当該コンケーブ(3
2)の周方向の偏摩耗を分散軽減させる。Another form is, for example, Jitsuko Sho 56-13.
As disclosed in Japanese Patent No. 92 and Japanese Patent Publication No. 60-78649, the concave is supported from above. In the former rotary crusher (No. Sho 56-1392), as shown in Fig. 5 (a) which is a front sectional view of the crusher, it is fitted in the upper body (31) of the body (30). While an annular collar (32a) is provided on the outer periphery of the upper portion of the concave (32) to be caused, it is an enlarged view of a main part of (a).
As shown in the figure, on the upper body (31), a plurality of support levers (33) which are swingable around the pivot support point (33a) as a fulcrum and whose base end is tightened with a tightening bolt (34) are provided. ) Are arranged, and the tips of the support levers (33) are
Abut the lower surface of the annular collar (32a) of (32) and set the concave (3
2) is supported from above and fixed in the upper body (31). Further, on the upper body (31), a plurality of rotating rollers (35) are provided with a required gap below the annular brim (32) of the concave (32).
Are installed. In this rotary crusher, support lever (33)
The axial force of the fastening bolt (34) through the secures the fixing force of the concave (32) to the upper body (31) at the time of mounting. Further, when the concave (32) and the upper body (31) are loosened due to continued crushing, the operation is interrupted and each fastening bolt (34) is tightened. In addition, when the concave (32) is tightened, the concave (32) is supported by the rotating roller (35), appropriately rotated, and then fixed to fix the concave (3).
Disperse and reduce uneven wear in 2) in the circumferential direction.
【０００５】一方、後者の旋動破砕機（特開昭60-78649
号）は、機体の上部胴体上に、コンケーブを上方から支
持する支持レバーおよび回転ローラを複数配設する点で
は、上記前者とものと同構成であるが、この旋動破砕機
では、その要部断面図である〔図６〕の (a)図に示すよ
うに、上部胴体(41)上に配設された各支持レバー(43)の
基端部を、締付けボルトで締付ける代わりに、図外の油
圧装置により作動する油圧シリンダ(44)の出力桿(44a)
に連結させ、その押圧力によって先端部をコンケーブ(4
2)の環状鍔(42)下面に当接させている。また、同 (b)図
に示すように、回転ローラ(45)を同油圧装置により作動
する油圧モータ(46)に連結させている。この旋動破砕機
では、支持レバー(43)を介する油圧シリンダ(44)の押圧
力にて、コンケーブ(42)の上部胴体(41)に対する固定力
を常時自動的に確保する。また、油圧シリンダ(44)と油
圧モータ(46)との連係作動により回転ローラ(45)を駆動
し、コンケーブ(42)を適宜時点で回動させて偏摩耗を分
散軽減させる。On the other hand, the latter rotary crusher (Japanese Patent Laid-Open No. 60-78649)
No.) has the same structure as the former one in that a plurality of support levers and rotating rollers for supporting the concave from above are arranged on the upper body of the machine body. As shown in (a) of FIG. 6 which is a partial sectional view, instead of tightening the base end portion of each support lever (43) arranged on the upper body (41) with a tightening bolt, Output rod (44a) of hydraulic cylinder (44) operated by an external hydraulic device
To the concave (4
It is in contact with the lower surface of the annular collar (42) of 2). Further, as shown in the same figure (b), the rotating roller (45) is connected to a hydraulic motor (46) operated by the hydraulic device. In this rotary crusher, the pressing force of the hydraulic cylinder (44) via the support lever (43) always automatically secures the fixing force of the concave (42) to the upper body (41). In addition, the rotary roller (45) is driven by the linked operation of the hydraulic cylinder (44) and the hydraulic motor (46), and the concave (42) is rotated at an appropriate time to disperse and reduce uneven wear.
【０００６】なお、以上に述べた３例の旋動破砕機で
は、コンケーブとマントルとの間に設定する破砕間隙の
調整は、〔図５〕の (a)図に示すように、マントル(36)
を上部に保持する主軸(37)内に設けた昇降機構(38)によ
って、マントル側を上下動させて行う構成が採用されて
いる。In the rotary crusher of the three examples described above, the crushing gap set between the concave and the mantle is adjusted by the mantle (36) as shown in FIG. 5 (a). )
A configuration is adopted in which the mantle side is moved up and down by an elevating mechanism (38) provided in a main shaft (37) that holds the above.
【０００７】[0007]
【発明が解決しようとする課題】旋動破砕機におけるコ
ンケーブでは、破砕に際して負荷される大きな応力によ
り、その表面の材料が加工硬化を生じると共に、その内
部の材料がメタルフローを起こす。また、メタルフロー
は摩耗の進展と共に漸次発生するため、摩耗が最も激し
く生じるコンケーブの下端部がメタルフローの影響を受
け易い。また、破砕を繰り返して行くと、コンケーブに
軸方向の伸びが生じると共に、嵌着された上部胴体との
間にも多少の摩耗が生じ、その結果、そのコンケーブと
上部胴体との間に緩みが起こり、それをそのまま放置す
ると、コンケーブが破砕の反力によってマントルの旋回
方向に回転し、上部胴体との間の摩耗が増大して緩みを
加速させ、ついには機体破損の事態まで引き起こすこと
になる。In the concave of the rotary crusher, due to the large stress applied during crushing, the material on the surface thereof undergoes work hardening and the material inside thereof causes metal flow. Further, since the metal flow gradually occurs as the wear progresses, the lower end of the concave where the wear is most severe is easily affected by the metal flow. In addition, as the crushing is repeated, the concave is axially stretched, and some wear is caused between the concave upper body and the fitted upper fuselage. As a result, looseness between the concave and the upper fuselage is caused. If it happens, if it is left as it is, the concave rotates in the turning direction of the mantle due to the reaction force of the crushing, the abrasion with the upper fuselage increases, accelerating the loosening, and eventually causing the damage of the aircraft .
【０００８】〔図４〕に示した従来の旋動破砕機では、
破砕の継続によってコンケーブに緩みが生じ、破砕の反
力によって回動し始めた場合、その回動を利用して緩み
を自律的に増締・補正できるのであるが、破砕を繰り返
して行くと、コンケーブの下端部がメタルフローの影響
を受けて変形し、それを下方から支持する支え輪および
締結ボルトに偏った応力を負荷し易い。そのため、コン
ケーブ下端と支え輪の傾斜面との間にガタ付が生じて、
自律的な増締機能を損なったり、締結ボルトが切損した
りして、コンケーブを上部胴体内に固定・保持できなく
なるという問題が発生していた。更に、そのコンケーブ
の下端に支え輪と接触して支持される面を確保するため
に、その下端部の肉厚が破砕強度上最低限必要とされる
肉厚よりも大きくなり、すなわち使用により摩耗して廃
却する際の重量がその分大きくなり、結果としてコンケ
ーブの材料の使用歩留りが悪くなるという問題点もあ
る。In the conventional rotary crusher shown in FIG. 4,
If the concave is loosened due to continued crushing and starts to rotate due to the reaction force of the crush, it is possible to autonomously tighten and correct the slack using the rotation, but when crushing is repeated, The lower end of the concave is deformed under the influence of the metal flow, and it is easy to apply a biased stress to the support ring and the fastening bolt that support it from below. Therefore, looseness occurs between the lower end of the concave and the inclined surface of the support ring,
There has been a problem that the concave cannot be fixed and held in the upper body because the autonomous tightening function is impaired or the fastening bolt is broken. Further, in order to secure a surface at the lower end of the concave in contact with the supporting ring, the thickness of the lower end becomes larger than the minimum required thickness for crushing strength, that is, wear due to use. Therefore, there is also a problem that the weight at the time of disposal is increased, and as a result, the yield of using the material of the concave is deteriorated.
【０００９】一方、〔図５〕に示した従来の旋動破砕機
では、コンケーブを上方から支持するので、メタルフロ
ーに起因する支持部への悪影響は回避できるが、破砕を
繰り返して行くと、コンケーブの軸方向の伸びや、上部
胴体との間の摩耗によって、コンケーブに緩みが生じる
ことは避けられず、また、その緩みを自律的に増締・補
正する機能を備えないので、その緩みのために締結ボル
トの軸力が漸減して行き、前述したように、破砕の反力
にてコンケーブが回転し始めて、更に緩みを加速させ
る。従って、それを防ぐには、かなり高頻度で締結ボル
トの締め増しを行う必要があり、しかも、その締め増し
は、人力に依存するため効率に劣り、加えて稼働中断を
伴うため、当該旋動破砕機の稼働率を低下させる。On the other hand, in the conventional rotary crusher shown in FIG. 5, since the concave is supported from above, the adverse effect on the supporting portion due to the metal flow can be avoided, but when crushing is repeated, It is unavoidable that the concave is loosened due to the axial extension of the concave and abrasion with the upper body, and since it does not have the function of tightening and correcting the looseness autonomously, the looseness Therefore, the axial force of the fastening bolt gradually decreases, and as described above, the concave force starts to rotate due to the reaction force of the crushing, and the loosening is further accelerated. Therefore, in order to prevent this, it is necessary to re-tighten the fastening bolts at a fairly high frequency. Moreover, since the extra tightening depends on human power, it is inefficient, and in addition, the operation is interrupted. Reduce the operating rate of the crusher.
【００１０】そこで〔図６〕に示した従来の旋動破砕機
では、締付けボルトの代わりに、油圧シリンダの押圧力
によって、コンケーブの上部胴体内面に対する固定力を
常時自動的に確保することで、上記従来の旋動破砕機で
の問題点を解消させている。しかしながら、この場合で
は、締め増し等の問題が解消できてその稼働率は高めら
れるものの、油圧シリンダや回転ローラを作動させるた
めに、制御用の機器やバルブ類を備える油圧装置および
専用の油圧管路が必要となり、装置コストが増大するだ
けでなく、装置全体の構成が複雑になって、その保全管
理についても比較的大きな負担を強いられるという問題
点がある。Therefore, in the conventional rotary crusher shown in FIG. 6, the pressing force of the hydraulic cylinder, instead of the tightening bolt, is used to automatically and automatically secure the fixing force of the concave to the upper body surface. The problems with the conventional rotary crusher are eliminated. However, in this case, although problems such as tightening can be solved and the operating rate is improved, in order to operate the hydraulic cylinder and the rotating roller, a hydraulic device including control devices and valves and a dedicated hydraulic pipe are provided. There is a problem that not only the route is required, the cost of the device is increased, but also the configuration of the entire device is complicated, and the maintenance and management thereof is relatively heavy.
【００１１】本発明は、上記従来技術の問題点を解消す
べくなされたもので、コンケーブを上方から支持するこ
とで、メタルフローに起因する支持部への悪影響や、コ
ンケーブの材料の使用歩留りの低下を回避できてなお、
破砕の継続によりコンケーブに生じた緩みを、装置コス
トや保全管理負担の増大を招く油圧機構等に依存するな
く、簡易な構成のもとで自律的に増締・補正することが
できて、より経済的に安定した稼働を継続できる旋動破
砕機の提供を目的とする。The present invention has been made in order to solve the above-mentioned problems of the prior art. By supporting the concave from above, the adverse effect on the supporting portion due to the metal flow and the use yield of the concave material can be reduced. I can avoid the decline,
Loosening that occurs due to continued crushing can be tightened and corrected autonomously with a simple configuration without relying on a hydraulic mechanism that increases equipment costs and maintenance management burden. The objective is to provide a rotary crusher that can continue economically stable operation.
【００１２】[0012]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明は以下の構成とされている。すなわち、本
発明に係る旋動破砕機は、上部胴体に、支持点を支点と
して揺動可能とされ、かつ基端部を締付けボルトで締付
けられた複数の支持レバーを配設する一方、その上部胴
体内に嵌着させるコンケーブの上部外周に環状鍔を設
け、前記支持レバーの先端部をコンケーブの環状鍔の下
面に当接させて、このコンケーブを上部胴体内に保持さ
せてなる旋動破砕機において、前記コンケーブの環状鍔
の下面が、周方向で断続する複数の傾斜面に形成され、
かつ、その傾斜面がマントルの旋回方向に向けて下り勾
配に傾斜させられていることを特徴とするものである。In order to achieve the above object, the present invention has the following constitution. That is, the rotary crusher according to the present invention is provided with a plurality of support levers, which are swingable around a support point as a fulcrum and whose base ends are tightened by tightening bolts, on the upper body, while the upper part thereof is provided. A rotary crusher in which an annular flange is provided on the outer periphery of the upper part of the concave to be fitted in the body, and the tip end of the support lever is brought into contact with the lower surface of the annular flange of the concave to hold the concave in the upper body. In, the lower surface of the annular flange of the concave is formed into a plurality of inclined surfaces which are intermittent in the circumferential direction,
In addition, the inclined surface is inclined downward in the turning direction of the mantle.
【００１３】また、上記の締付けボルトと支持レバーの
基端部との間にバネが介装されていても良い。A spring may be interposed between the tightening bolt and the base end of the support lever.
【００１４】[0014]
【作用】本発明では、上部胴体に複数の揺動可能な支持
レバーを配設すると共に、それら支持レバーの基端部を
締付けボルトで締付ける一方、その上部胴体内に嵌着さ
せるコンケーブの上部外周に環状鍔を設けるので、この
コンケーブの環状鍔の下面に各支持レバーの先端部を当
接させて支持すると共に、それら支持レバーを介する締
付けボルトの軸力にて、このコンケーブを上部胴体内に
固定させて保持することができる。また、そのコンケー
ブの環状鍔の下面が、周方向で断続する複数の傾斜面に
形成され、かつ、その傾斜面がマントルの旋回方向に向
けて下り勾配に傾斜させられているので、破砕の継続に
よりコンケーブに緩みが生じて、コンケーブが破砕の反
力によってマントルの旋回方向に回動し、その環状鍔の
下面と支持レバーの先端部との間に周方向の相対滑りが
生じると、当該コンケーブは環状鍔下面の傾斜に沿って
押し上げられ、上部胴体との間に破砕の反力と同等の固
定力を得た後に回動停止することになり、これにより、
各締付けボルトの締め増しによることなく、生じた緩み
を稼働中において自律的に増締・補正することができ
る。According to the present invention, a plurality of swingable support levers are provided on the upper body, and while the base ends of the support levers are tightened with the tightening bolts, the outer periphery of the upper portion of the concave to be fitted into the upper body is fastened. Since an annular flange is provided on the concave flange, the tip of each support lever is brought into contact with the lower surface of the annular flange of this concave to support it, and the axial force of the tightening bolts through these supporting levers causes the concave to move in the upper body. It can be fixed and held. Further, since the lower surface of the annular brim of the concave is formed into a plurality of inclined surfaces that are interrupted in the circumferential direction, and the inclined surfaces are inclined downward in the turning direction of the mantle, continuous crushing is performed. Due to the slack in the concave caused by the crushing reaction force, the concave rotates in the swivel direction of the mantle, and the relative slip in the circumferential direction occurs between the lower surface of the annular collar and the tip of the support lever. Is pushed up along the inclination of the lower surface of the annular collar and will stop rotating after obtaining a fixing force equivalent to the reaction force of crushing with the upper body, which will
It is possible to autonomously retighten and correct the looseness that occurs during operation, without having to retighten each fastening bolt.
【００１５】また、上記の締付けボルトと支持レバーの
基端部との間にバネが介装されていると、締付けボルト
単独による締結に比べてバネ定数を低い値に設定できる
ため、各締付けボルトの許容軸力の範囲で大きな変位が
得られ、コンケーブの周方向においてバラツキのあるメ
タルフローが発生している場合でも、複数配置された締
付けボルトおよび支持レバーの内の特定箇所のものだけ
が高負荷の締結状態となって破損に至ることのないよう
に、締結力をそれぞれに均等的に分散できる。Further, if a spring is interposed between the tightening bolt and the base end portion of the support lever, the spring constant can be set to a lower value as compared with the tightening with the tightening bolt alone, so that each tightening bolt can be set. Even if a large displacement is obtained within the allowable axial force range and uneven metal flow is generated in the circumferential direction of the concave, only the tightening bolts and support levers arranged at multiple locations are high. The fastening force can be evenly distributed to the respective loads so that the loads are not brought into a fastening state and are not damaged.
【００１６】[0016]
【実施例】以下、本発明の実施例について図面を参照し
て説明する。〔図１〕は本発明の実施例の旋動破砕機の
概要構成を示す図面であって、 (a)図は正断面図、 (b)
図は (a)図のイ部拡大断面図、 (c)図は (b)図のＡ−Ａ
断面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a drawing showing a schematic configuration of a rotary crusher of an embodiment of the present invention, in which (a) is a front sectional view and (b) is
The figure is an enlarged cross-sectional view of part (a) in Figure A, and (c) is an A-A in Figure (b).
FIG.
【００１７】〔図１〕に示す本実施例の旋動破砕機で
は、機体(1) の下部胴体(2) 内に、上部が偏心旋回する
主軸(4) と、外端部に設けたＶベルトプーリ(5a)を介し
て図外の駆動装置によって駆動され、主軸(4) を回転さ
せるピニオン軸(5) とを配設し、その主軸(4) のヘッド
センタ(4a)上に冠着された円錐筒状のマントル(6) を、
機体(1) の上部胴体(3) 内に嵌着された円錐筒状のコン
ケーブ(7) 内で偏心旋回させて、上部から供給された岩
石や鉱石等の原材料を、コンケーブ(7) とマントル(6)
との間で挟圧破砕する。In the rotary crusher according to the present embodiment shown in FIG. 1, a main shaft (4) having an eccentric upper part of the main body (4) inside the lower body (2) of the machine body (1) and a V provided at the outer end portion. A pinion shaft (5) for rotating the main shaft (4) driven by a drive device (not shown) via a belt pulley (5a) is provided, and the head center (4a) of the main shaft (4) is mounted. The conical cylindrical mantle (6)
The conical tubular concave (7) fitted in the upper fuselage (3) of the fuselage (1) is eccentrically rotated, and the raw materials such as rocks and ores supplied from the upper part are supplied to the concave (7) and the mantle. (6)
Crush and crush between and.
【００１８】また、その上部胴体(3) は、内周に鋸歯ネ
ジを有する円筒状の固定胴体部(3a)と、下部内周に円錐
台状のコンケーブ嵌着面部を有すると共に、外周に鋸歯
ネジを有する異形筒状に形成され、固定胴体部(3a)内に
上下動可能に螺合されたコンケーブ支持部(3b)とを備え
てなる２重筒構造とされている。Further, the upper body (3) has a cylindrical fixed body portion (3a) having a sawtooth screw on the inner circumference, a truncated cone-like concave fitting surface portion on the lower inner circumference, and a sawtooth on the outer circumference. The double cylinder structure is formed in a deformed tubular shape having a screw and includes a concave support portion (3b) screwed in a fixed body portion (3a) so as to be vertically movable.
【００１９】そして、そのコンケーブ支持部(3b)の内径
側の上部には、先端部をコンケーブ支持部(3b)の内径側
に突出させて半径方向に配され、(b) 図に示すように、
コンケーブ支持部(3b)上面に接するピポット支持点(8a)
を支点として揺動可能な支持レバー(8) が、周方向に等
ピッチで複数（本例では６個）配設されている。また、
それら支持レバー(8) の基端部は、連結ピン(11)を介し
てコンケーブ支持部(3b)に揺動可能に連結された締付け
ボルト(9) と、この締付けボルト(9) が備えるダブルナ
ット(9a)にて締付けられている。At the inner diameter side upper portion of the concave support portion (3b), the tip end is projected in the inner diameter side of the concave support portion (3b) and is arranged in the radial direction, as shown in FIG. ,
Pivot support point (8a) in contact with the upper surface of concave support (3b)
A plurality of (six in this example) support levers (8) swingable around the fulcrum are arranged at equal pitches in the circumferential direction. Also,
The base ends of the support levers (8) are provided with a tightening bolt (9) swingably connected to the concave support part (3b) via a connecting pin (11) and a double bolt provided by the tightening bolt (9). Tightened with the nut (9a).
【００２０】一方、上部胴体(3) 内、つまりコンケーブ
支持部(3b)内に嵌着されるコンケーブ(7) の上部外周に
は、(b) 図に示すように、半径方向に張り出す環状鍔(7
a)が設けてあり、更に、その環状鍔(7a)の下面には、後
述する勾配リング(10)が１体に取着されている。そし
て、このコンケーブ(7) は、その環状鍔(7a)を、勾配リ
ング(10)介して、各支持レバー(8) によって支持される
と共に、それら支持レバー(8) を介する締付けボルト
(9) の軸力にて、コンケーブ支持部(3b)の嵌着面部に外
周面を密着させて保持されている。On the other hand, on the outer periphery of the upper portion of the concave body (7) fitted in the upper body (3), that is, the concave portion support portion (3b), as shown in FIG. Tsuba (7
a) is provided, and a gradient ring (10) described later is integrally attached to the lower surface of the annular flange (7a). The concave (7) is supported by the support levers (8) with the annular collar (7a) via the gradient ring (10) and the tightening bolts via the support levers (8).
By the axial force of (9), the outer peripheral surface is held in close contact with the fitting surface portion of the concave support portion (3b).
【００２１】ここで、コンケーブ(7) の環状鍔(7a)の下
面に取着される勾配リング(10)は、その説明図である
〔図２〕（ (a)図は正面図、 (b)図は下面図）に示すよ
うに、下面が所定方向に向けて下り勾配に傾斜する傾斜
面に形成された円弧状の勾配凸部(10a) を、周方向に等
ピッチで複数個断続させて平リング状の取付環部(10b)
の下方に突設している。また、その勾配凸部(10a) は、
支持レバー(8) の配設数に対応する数（本例では６個）
およびピッチで設けられると共に、その下面をマントル
(6) の旋回方向に向けて下り勾配に傾斜する傾斜面に形
成され、かつ、その始端部と終端部との高低差ｈ、つま
り傾斜角度と周方向の長さは、コンケーブ(7) の設計許
容摩耗量によって設定（本例では設計許容摩耗量が約16
mmであることより、余裕値を含み高低差ｈを19mm、有効
高低差を18mmに設定）される。Here, the gradient ring (10) attached to the lower surface of the annular collar (7a) of the concave (7) is an explanatory view thereof (FIG. 2) ((a) is a front view, (b) is a front view). ) As shown in the bottom view), a plurality of arc-shaped gradient projections (10a) formed on the inclined surface whose lower surface inclines downward in a predetermined direction are interrupted at equal pitches in the circumferential direction. Flat ring-shaped mounting ring (10b)
Is projected below. In addition, the gradient convex portion (10a) is
Number corresponding to the number of support levers (8) (6 in this example)
And the pitch, and the lower surface of the mantle
It is formed on an inclined surface that inclines downward in the turning direction of (6), and the height difference h between its starting end and its end, that is, the inclination angle and the length in the circumferential direction, is equal to that of the concave (7). Set by design allowable wear amount (In this example, the design allowable wear amount is about 16
Since it is mm, the height difference h is set to 19 mm and the effective height difference is set to 18 mm including the margin value.
【００２２】そして、この勾配リング(10)は、その取付
環部(10b) に設けた複数のボルト穴(10c) それぞれに挿
入された締結ボルトを介して、コンケーブ(7) の環状鍔
(7a)下面に１体に取着され、また、コンケーブ(7) の初
期取付け時には、〔図１〕の(c)図に示すように、支持
レバー(8) の先端部が、勾配凸部(10a) の傾斜面の始端
部側に当接する周方向位置に位置づけられる。なお、こ
の勾配凸部(10a) に当接する支持レバー(8) は、コンケ
ーブ支持部(3b)の内径側の上部に半径方向に設けられた
角溝内で揺動し、周方向には移動できないものとされて
いる。The gradient ring (10) is provided with an annular collar of the concave (7) via fastening bolts inserted into bolt holes (10c) provided in the mounting ring (10b).
(7a) One piece is attached to the lower surface, and when the concave (7) is initially attached, as shown in (c) of [Fig. 1], the tip of the support lever (8) has a sloped convex portion. It is located at a circumferential position where it abuts on the starting end side of the inclined surface of (10a). The support lever (8) that comes into contact with the sloped convex portion (10a) swings in a square groove provided in the radial direction at the upper portion on the inner diameter side of the concave support portion (3b) and moves in the circumferential direction. It is supposed to be impossible.
【００２３】翻って、〔図１〕の (a)図および (b)図に
おいて、(12)は上部カバーであって、この上部カバー(1
2)は、内端部をシール部材を介してコンケーブ(7) の上
開口端に接触させて、上部胴体(3) のコンケーブ支持部
(3b)の上端に取り付けられ、上方から供給される原材料
を、コンケーブ(7) 内に導く投入口を形成すると共に、
支持レバー(8) および締付けボルト(9) の配設部位を閉
塞する。また、この上部カバー(12)の外周部には、ここ
では図示を省略した駆動装置に連結される歯車(12a) が
設けられてあり、その駆動装置により駆動されてコンケ
ーブ支持部(3b)を回転させ、これによりコンケーブ(7)
を上下動させて、マントル(6) との間の破砕間隙を任意
に調整できるものとされている。On the other hand, in FIGS. 1A and 1B, (12) is an upper cover, and the upper cover (1
2) is the concave support part of the upper fuselage (3) where the inner end is brought into contact with the upper open end of the concave (7) through the seal member.
It is attached to the upper end of (3b) and forms a feed port for guiding the raw material supplied from above into the concave (7),
The support lever (8) and the tightening bolt (9) are closed. Further, a gear (12a) connected to a driving device (not shown) is provided on the outer peripheral portion of the upper cover (12), and the concave support portion (3b) is driven by the driving device. Rotate, which allows the concave (7)
It is said that the crushing gap with the mantle (6) can be adjusted arbitrarily by moving up and down.
【００２４】上記構成を具備する本実施例の旋動破砕機
では、コンケーブ(7) の環状鍔(7a)を各支持レバー(8)
によって支持すると共に、それら支持レバー(8) を介す
る締付けボルト(9) の軸力によって、当該コンケーブ
(7) の取付け時の初期締結力を得て、上部胴体(3) のコ
ンケーブ支持部(3b)内に確実に固定して保持できる。In the rotary crusher of the present embodiment having the above-mentioned structure, the annular brim (7a) of the concave (7) is attached to each support lever (8).
And the axial force of the tightening bolts (9) through the supporting levers (8)
The initial fastening force at the time of mounting (7) can be obtained, and it can be securely fixed and held in the concave support portion (3b) of the upper body (3).
【００２５】また、破砕の継続によってコンケーブ(7)
と上部胴体(3) のコンケーブ支持部(3b)との間に緩みが
生じ、コンケーブ(7) が破砕の反力によってマントル
(6) の旋回方向に回動し始め、その環状鍔(7a)下面に取
着した勾配リング(10)と、支持レバー(8) の先端部との
間に周方向の相対滑りが生じると、当該コンケーブ(7)
は勾配リング(10)の勾配凸部(10a) 下面の傾斜に沿って
押し上げられ、コンケーブ支持部(3b)内面に密着して破
砕の反力と同等の固定力を得た後に回動停止することに
なるので、各締付けボルトの締め増しによることなく、
生じた緩みを稼働中において自律的に増締・補正でき、
これにより、メンテナンスフリーの状態で稼働を継続す
ることができて、そのランニングコストを低減できる。In addition, due to the continuous crushing, the concave (7)
And the concave support part (3b) of the upper fuselage (3) is loosened, and the concave (7) is crushed by the reaction force of the mantle.
If the gradient ring (10) attached to the lower surface of the annular collar (7a) and the tip of the support lever (8) start to rotate in the turning direction of (6), a relative slip in the circumferential direction occurs. , Concave (7)
Is pushed up along the slope of the lower surface of the sloped convex portion (10a) of the slope ring (10) and comes into close contact with the inner surface of the concave support portion (3b) to obtain a fixing force equivalent to the reaction force of crushing and then stop rotating. Therefore, without tightening each tightening bolt,
The looseness that occurred can be tightened and corrected autonomously during operation,
As a result, the operation can be continued in a maintenance-free state, and the running cost can be reduced.
【００２６】なお、上記実施例では、支持レバー(8) の
基端部を、締付けボルト(9) のダブルナット(9a)によっ
て直接的に締め付けるものとしたが、これは例えば、本
発明の別の実施態様の説明図である〔図３〕に示すよう
に、ダブルナット(9a)と支持レバー(8) との間に、皿バ
ネないしはコイルバネ等のバネ(13)を介装することも好
ましい実施態様である。この場合、直接的な締結に比べ
てバネ定数を低い値に設定できるため、各締付けボルト
の許容軸力の範囲で大きな変位が得られ、コンケーブの
周方向においてバラツキのあるメタルフローが発生して
いる場合でも、締付けボルトおよび支持レバーの内の特
定箇所のものだけが高負荷の締結状態となって破損に至
るこのないように、締結力をそれぞれに均等的に分散さ
せることができる。In the above embodiment, the base end of the support lever (8) is directly tightened by the double nut (9a) of the tightening bolt (9). It is also preferable to interpose a spring (13) such as a disc spring or a coil spring between the double nut (9a) and the support lever (8) as shown in FIG. 3 which is an explanatory view of the embodiment of FIG. It is an embodiment. In this case, since the spring constant can be set to a lower value compared to direct tightening, a large displacement can be obtained within the range of the allowable axial force of each tightening bolt, causing a metal flow with variations in the circumferential direction of the concave. Even if there is, the fastening force can be evenly distributed to each of the fastening bolts and the support lever so that only a specific portion of the fastening bolt is in a fast-loaded fastening state and is not damaged.
【００２７】また、コンケーブ(7) の環状鍔(7a)下面
に、勾配リング(10)を１体に取着することで、その下面
に複数の傾斜面を形成せしめたが、これは、施工を容易
とするためであって、施工性に問題がない場合、そのコ
ンケーブの環状鍔下面を加工して、同様の傾斜面を直接
に設けられて良いことは言うまでもない。Further, by attaching the gradient ring (10) as one body to the lower surface of the annular flange (7a) of the concave (7), a plurality of inclined surfaces are formed on the lower surface. Needless to say, for ease of construction, and when there is no problem in workability, the lower surface of the annular brim of the concave may be processed and a similar inclined surface may be directly provided.
【００２８】[0028]
【発明の効果】以上に述べたように、本発明に係る旋動
破砕機では、コンケーブを上方から支持する構成とし
て、メタルフローに起因する支持部への悪影響や、コン
ケーブの材料の使用歩留りの低下を回避できてなお、破
砕の継続によりコンケーブに生じた緩みを、装置コスト
や保全管理負担の増大を招く油圧機構等に依存するな
く、簡易な構成のもとで自律的に増締・補正することが
できて、より経済的に安定した稼働を継続することがで
きる。As described above, in the rotary crusher according to the present invention, since the concave is supported from above, the adverse effect on the supporting portion due to the metal flow and the yield of use of the material of the concave are reduced. It is possible to avoid the decrease, and the loosening caused by the continuous crushing is autonomously tightened and corrected under a simple structure without relying on the hydraulic mechanism etc. which increases the equipment cost and maintenance management burden. It is possible to continue economically stable operation.
【図１】本発明の実施例の旋動破砕機の概要構成を示す
図面であって、 (a)図は正断面図、 (b)図は (a)図のイ
部拡大断面図、 (c)図は (b)図のＡ−Ａ断面図である。FIG. 1 is a diagram showing a schematic configuration of a rotary crusher according to an embodiment of the present invention, in which (a) is a front sectional view, (b) is an enlarged sectional view of part (a) of FIG. FIG. 3C is a sectional view taken along line AA in FIG.
【図２】本発明の実施例の旋動破砕機の主要構成部材の
説明図であって、 (a)図は正面図、 (b)図は下面図であ
る。2A and 2B are explanatory views of main constituent members of a rotary crusher according to an embodiment of the present invention, in which FIG. 2A is a front view and FIG. 2B is a bottom view.
【図３】本発明の別の実施態様の説明図である。FIG. 3 is an explanatory diagram of another embodiment of the present invention.
【図４】従来の旋動破砕機のコンケーブ保持構成を示す
要部断面図である。FIG. 4 is a cross-sectional view of essential parts showing a concave holding structure of a conventional rotary crusher.
【図５】従来の別の旋動破砕機の概要構成を示す正断面
図である。FIG. 5 is a front sectional view showing a schematic configuration of another conventional rotary crusher.
【図６】従来のまた別の旋動破砕機の要部断面図であ
る。FIG. 6 is a sectional view of a main part of another conventional rotary crusher.
(1) --機体、(2) --下部胴体、(3) --上部胴体、(3a)--
固定胴体部、(3b)--コンケーブ支持部、(4) --主軸、(4
a)--ヘッドセンタ、(5) --ピニオン軸、(5a)--Ｖベルト
プーリ、(6) --マントル、(7) --コンケーブ、(7a)--環
状鍔、(8) --支持レバー、(8a)--ピポット支持点、(9)
--締付けボルト、(9a)--ダブルナット、(10)--勾配リン
グ、(10a)-- 勾配凸部、(11)--連結ピン、(12)--上部カ
バー、(12a)-- 歯車。(1) --Airframe, (2) --Lower fuselage, (3) --Upper fuselage, (3a)-
Fixed body, (3b)-Concave support, (4)-Spindle, (4
a)-head center, (5) --pinion shaft, (5a)-V belt pulley, (6) --mantle, (7) --concave, (7a)-annular collar, (8)- -Support lever, (8a)-Pivot support point, (9)
--Tightening bolt, (9a)-Double nut, (10)-Slope ring, (10a)-Slope protrusion, (11)-Connecting pin, (12)-Top cover, (12a)- -Gears.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高野 真一 兵庫県高砂市荒井町新浜２丁目３番１号 株式会社神戸製鋼所高砂製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Takano 2-3-1, Niihama, Arai-cho, Takasago-shi, Hyogo Kobe Steel Works Takasago Works
Claims (2)
能とされ、かつ基端部を締付けボルトで締付けられた複
数の支持レバーを配設する一方、その上部胴体内に嵌着
させるコンケーブの上部外周に環状鍔を設け、前記支持
レバーの先端部をコンケーブの環状鍔の下面に当接させ
て、このコンケーブを上部胴体内に保持させてなる旋動
破砕機において、前記コンケーブの環状鍔の下面が、周
方向で断続する複数の傾斜面に形成され、かつ、その傾
斜面がマントルの旋回方向に向けて下り勾配に傾斜させ
られていることを特徴とする旋動破砕機。1. A concave portion to which a plurality of support levers, which are swingable about a supporting point as a fulcrum and whose base end portions are tightened with tightening bolts, are arranged on the upper body, and which are fitted into the upper body. In the rotary crusher in which an annular flange is provided on the outer periphery of the upper part of the support lever, and the tip of the support lever is brought into contact with the lower surface of the annular flange of the concave to hold the concave in the upper body, the annular flange of the concave is formed. The lower surface of the rotary crusher is formed into a plurality of inclined surfaces that are intermittent in the circumferential direction, and the inclined surfaces are inclined downward in the turning direction of the mantle.
間にバネが介装されている請求項１記載の旋動破砕機。2. The rotary crusher according to claim 1, wherein a spring is interposed between the tightening bolt and the base end of the support lever.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14083893A JP2735767B2 (en) | 1993-06-11 | 1993-06-11 | Rotating crusher |
| KR94013167A KR970001779B1 (en) | 1993-06-11 | 1994-06-11 | Rotating crusher |
| TW83105866A TW265276B (en) | 1993-06-11 | 1994-06-28 | Revolving crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14083893A JP2735767B2 (en) | 1993-06-11 | 1993-06-11 | Rotating crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07838A true JPH07838A (en) | 1995-01-06 |
| JP2735767B2 JP2735767B2 (en) | 1998-04-02 |
Family
ID=15277896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14083893A Expired - Fee Related JP2735767B2 (en) | 1993-06-11 | 1993-06-11 | Rotating crusher |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2735767B2 (en) |
| KR (1) | KR970001779B1 (en) |
| TW (1) | TW265276B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100684616B1 (en) * | 2005-04-22 | 2007-02-20 | 용원기계공업(주) | Cone crusher |
| KR200447365Y1 (en) * | 2009-12-04 | 2010-01-20 | 용원기계공업(주) | Concave combine structure of concrusher |
| EP2758176A1 (en) * | 2011-09-21 | 2014-07-30 | Telsmith, Inc. | Apparatus and method for liner system |
| CN104056679A (en) * | 2014-06-18 | 2014-09-24 | 中信重工机械股份有限公司 | Novel locking and quick-replacement mechanism for fixed cone lining plate of cone crusher |
-
1993
- 1993-06-11 JP JP14083893A patent/JP2735767B2/en not_active Expired - Fee Related
-
1994
- 1994-06-11 KR KR94013167A patent/KR970001779B1/en not_active IP Right Cessation
- 1994-06-28 TW TW83105866A patent/TW265276B/en active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100684616B1 (en) * | 2005-04-22 | 2007-02-20 | 용원기계공업(주) | Cone crusher |
| KR200447365Y1 (en) * | 2009-12-04 | 2010-01-20 | 용원기계공업(주) | Concave combine structure of concrusher |
| EP2758176A1 (en) * | 2011-09-21 | 2014-07-30 | Telsmith, Inc. | Apparatus and method for liner system |
| EP2758176A4 (en) * | 2011-09-21 | 2015-04-08 | Telsmith Inc | Apparatus and method for liner system |
| AU2012312223B2 (en) * | 2011-09-21 | 2016-04-14 | Telsmith, Inc. | Apparatus and method for liner system |
| RU2617609C2 (en) * | 2011-09-21 | 2017-04-25 | Телсмит, Инк. | Structure of mantle system and method for its regulation |
| CN104056679A (en) * | 2014-06-18 | 2014-09-24 | 中信重工机械股份有限公司 | Novel locking and quick-replacement mechanism for fixed cone lining plate of cone crusher |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970001779B1 (en) | 1997-02-15 |
| JP2735767B2 (en) | 1998-04-02 |
| TW265276B (en) | 1995-12-11 |
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