JPS6234421B2 - - Google Patents

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Publication number
JPS6234421B2
JPS6234421B2 JP28178785A JP28178785A JPS6234421B2 JP S6234421 B2 JPS6234421 B2 JP S6234421B2 JP 28178785 A JP28178785 A JP 28178785A JP 28178785 A JP28178785 A JP 28178785A JP S6234421 B2 JPS6234421 B2 JP S6234421B2
Authority
JP
Japan
Prior art keywords
crushing
crushing head
load
pressure
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.)
Expired
Application number
JP28178785A
Other languages
Japanese (ja)
Other versions
JPS61141942A (en
Inventor
Yasuo Oda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP28178785A priority Critical patent/JPS61141942A/en
Publication of JPS61141942A publication Critical patent/JPS61141942A/en
Publication of JPS6234421B2 publication Critical patent/JPS6234421B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 発明の利用分野 本発明は、コーンクラツシヤ、ジヤイレートリ
クラツシヤ等のいわゆる、旋動破砕機に関するも
のであるつて、負荷に応じて出口セツトを自動的
に追従させる、いわゆる破砕頭浮遊型旋動破砕機
の改良に係り、特に極めて簡単な構造で確実に制
御される旋動型破砕機に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Application of the Invention The present invention relates to a so-called rotary crusher such as a cone crusher or a gyratory crusher, in which the outlet set automatically follows the load. The present invention relates to an improvement of a so-called floating crushing head type rotary crusher, and particularly to a rotary type crusher that has an extremely simple structure and is reliably controlled.

発明の背景 従来のコーンクラツシヤ等の旋動型破砕機は、
一般に略円錘台状の破砕頭を略円錘筒状の裏板の
内部で偏心旋回せることにより、破砕頭と裏板と
の間の破砕室出口の隙間に噛み込まれた岩石等の
原料を破砕頭と裏板との間で挟圧破砕するもので
ある。かかる一般的な旋動型破砕機においては、
上記出口隙間が負荷にかかわらず一定であり、た
とえば軟い原料等を投入した場合等のようにたと
え負荷が十分に小さい場合でも、破砕機の出口隙
間は一定であり、負荷が軽いからといつて負荷を
大きくするように出口隙間を小さくするような調
節機能はない。
Background of the Invention Conventional rotary crushers such as cone crushers are
In general, by eccentrically rotating a roughly conical crushing head inside a roughly conical cylindrical back plate, materials such as rocks are caught in the gap at the crushing chamber outlet between the crushing head and the back plate. The material is compressed and crushed between the crushing head and the back plate. In such a general rotary crusher,
The exit clearance mentioned above is constant regardless of the load, and even if the load is sufficiently small, such as when soft raw materials are input, the exit clearance of the crusher is constant, and even if the load is light, There is no adjustment function to reduce the exit clearance to increase the load.

また破砕頭浮遊型旋動破砕機の機能上、破砕能
力を越えて硬くかつ大きい、夾雑物が供給された
時、破砕頭が十分の距離だけ逃げて損傷を受けな
いようにすることが望ましい。
Furthermore, in terms of the functionality of the crushing head floating type rotary crusher, when hard and large foreign matter exceeding the crushing capacity is supplied, it is desirable that the crushing head escapes by a sufficient distance to avoid damage.

これに対して負荷に応じて破砕条件を自動的に
追従させるために、油圧力、モーター駆動電流等
を検出して、出口隙間等を制御するための自動制
御装置付きの旋動型破砕機が存在する。このよう
な破砕機は、第1図に示すように、制御装置1に
よつて制御されるものであり、破砕頭2を裏板3
の軸芯上で旋回させつつ、油圧シリンダ4によつ
て上下方向に支持し、破砕頭2を旋回させる駆動
電動機5の電流値、出口隙間6の間隔を検出する
セチケータ7からの信号値、供給原料のホツパー
内のレベルを検出するホツパーレベルスイツチ8
からの信号値、及び油圧力を検出する圧力計9か
らの信号値の内の2乃至4個の値を自動的に且つ
連続的に測定し、破砕機が最大の能力を発揮する
よう、出口隙間並びにこの破砕機への供給量を自
動的に調整するものである。従つてこのような方
式の破砕機では、時々刻々変動する破砕状態に応
じて、出口隙間等を微調整できるため、理論的に
最適の破砕条件を得ることができるものである
が、反面高価な自動制御装置が必要であり、経済
性の点で問題がある。
On the other hand, in order to automatically follow the crushing conditions according to the load, a rotary crusher is equipped with an automatic control device that detects hydraulic pressure, motor drive current, etc. and controls the exit gap, etc. exist. As shown in FIG. 1, such a crusher is controlled by a control device 1, and a crushing head 2 is connected to a back plate 3.
The current value of the drive motor 5 that rotates the crushing head 2 while rotating on the axis of the crushing head 2, supported in the vertical direction by the hydraulic cylinder 4, and the signal value from the setticator 7 that detects the interval of the outlet gap 6, are supplied. Hopper level switch 8 that detects the level of raw material in the hopper
The system automatically and continuously measures 2 to 4 of the signal values from the pressure gauge 9 and the pressure gauge 9 that detects hydraulic pressure, and measures the This automatically adjusts the gap and the amount of feed to the crusher. Therefore, with this type of crusher, it is possible to finely adjust the outlet gap etc. according to the constantly changing crushing conditions, so it is theoretically possible to obtain the optimal crushing conditions, but on the other hand, it is expensive and An automatic control device is required, which poses a problem in terms of economy.

また、通常破砕時に発生する油圧(平均破砕圧
力)よりも高い圧力のガスを封入したアキユムレ
ータを破砕頭を支持するピストン・シリンダ装置
の内側に挿入し、破砕機が過負荷となつた時、こ
のアキユムレータの作用により破砕頭を下方へ逃
がして、破砕機の損傷を防止するようになした破
砕機が従来よりある(特公昭56―23656号公報参
照)が、このようなアキユムレータは、あくまで
過負荷時の安全装置として作用するもので、定常
運転中に破砕頭を昇降させるものではないので、
負荷に応じて出口隙間を変動させるような制御能
力はなく、また、アキユムレータがピストン・シ
リンダ装置の内側に設けられているので十分な容
積を確保することができず、破砕頭のわずかな変
位(下降)しか許容されず、本発明の目的とする
ような、常時、負荷を一定とする層圧縮破砕状態
を実現しうる破砕機の提供、及び大型の夾雑物か
ら破砕頭を逃がして保護する目的には役立つもの
ではない。
In addition, an accumulator filled with gas at a pressure higher than the hydraulic pressure (average crushing pressure) normally generated during crushing is inserted inside the piston-cylinder device that supports the crushing head, and when the crusher becomes overloaded, this There is a conventional crusher that prevents damage to the crusher by allowing the crushing head to escape downwards due to the action of the accumulator (see Japanese Patent Publication No. 56-23656). It acts as a safety device during normal operation, and does not raise or lower the crushing head during steady operation.
There is no control ability to vary the outlet clearance depending on the load, and since the accumulator is installed inside the piston/cylinder device, it is not possible to secure sufficient volume, and the slight displacement of the crushing head ( To provide a crusher capable of realizing a bed compression crushing state with a constant load at all times as the object of the present invention, and to protect the crushing head by escaping large foreign objects. It's not helpful.

発明の目的 従つて本発明の目的は、平均破砕圧力程度の負
荷に応じて確実に破砕室の出口隙間を変動させ、
定負荷運転を実現させる破砕頭浮遊型の旋動型破
砕機を提供すると共に、破砕機の破砕能力をこえ
る大型の硬質夾雑物が供給された時にも破砕頭が
十分の量だけ下降して破砕機の損傷を確実に防止
することにある。
Purpose of the Invention Therefore, the purpose of the present invention is to reliably vary the outlet gap of the crushing chamber in accordance with a load of about the average crushing pressure,
We provide a rotating type crusher with a floating crushing head that realizes constant load operation, and even when large hard contaminants exceeding the crushing capacity of the crusher are supplied, the crushing head descends by a sufficient amount to crush them. The purpose is to reliably prevent damage to the machine.

発明の構成 上記目的を達成するために本発明が採用する主
たる手段は、略円錘台状の破砕頭を油圧にて旋回
可能に支持し、下方に向かつて拡開する略円錘状
の裏板の内部で上記破砕頭を偏心旋回させること
により、破砕頭と裏板との間の破砕室に噛み込ん
だ原料を挟圧破砕する旋動型破砕機において、上
記破砕頭を支持する破砕機から油圧源までの油圧
回路に、破砕頭に加わる負荷が平均破砕負荷であ
る時にブラダの内容積が減少する低圧用のアキユ
ムレータと、上記平均破砕負荷ではブダラの内容
積が変動せず過負荷時にはじめてブダラの内容積
が変動する高圧用のアキユムレータとを接続し、
上記負荷に応じて上記破砕室の出口隙間が変動す
るようになした点を要旨とする破砕頭浮遊型旋動
破砕機を提供するものである。
Composition of the Invention The main means adopted by the present invention to achieve the above object is to support a substantially conical frustum-shaped crushing head so as to be able to rotate with hydraulic pressure, and a substantially conical back that expands downward. A rotary crusher that supports the crushing head in a rotary type crusher that compresses and crushes raw material caught in a crushing chamber between the crushing head and a back plate by eccentrically rotating the crushing head inside a plate. In the hydraulic circuit from to the hydraulic power source, there is a low pressure accumulator that reduces the internal volume of the bladder when the load applied to the crushing head is the average crushing load, and an accumulator for low pressure that reduces the internal volume of the bladder when the load applied to the crushing head is the average crushing load, and an accumulator for low pressure that does not change the internal volume of the bladder under the above average crushing load and when overloaded. For the first time, connect the Budara to a high-pressure accumulator whose internal volume fluctuates.
The object of the present invention is to provide a crushing head floating type rotary crusher in which the outlet gap of the crushing chamber is varied in accordance with the load.

実施例 続いて第2図以下の添付図面を参照して本発明
を具体化した実施例につき、詳しく説明する。こ
こに第2図は、本発明の一実施例である破砕機の
油圧による制御回路図、第3図及び第4図は、そ
れぞれ、同制御回路に用いることのできるアキユ
ムレータの作動を示す断面図で、第3図はブラダ
が最も膨張した状態を、また第4図は、ブラダが
若干圧縮された状態を示すものである。
Embodiments Next, embodiments embodying the present invention will be described in detail with reference to the accompanying drawings starting from FIG. Here, FIG. 2 is a hydraulic control circuit diagram of a crusher which is an embodiment of the present invention, and FIGS. 3 and 4 are sectional views showing the operation of an accumulator that can be used in the same control circuit, respectively. FIG. 3 shows the bladder in the most expanded state, and FIG. 4 shows the bladder in the slightly compressed state.

第2図において、10は旋動型破砕機で、略円
錘筒状の裏板11の内部で、円錘台状の破砕頭1
2が油圧によつて旋回可能に保持され且つ、裏板
11の軸芯のまわりに偏心しつつ旋回駆動され
る。13は、破砕頭12を昇降自在に支持する油
圧シリンダであり、該油圧シリンダの内室14
は、配管15を経てモータ16によつて駆動され
る油圧ポンプ17に接続されている。
In FIG. 2, reference numeral 10 denotes a rotary crusher, in which a crushing head 1 having a truncated conical shape is installed inside a substantially conical cylindrical back plate 11.
2 is held rotatably by hydraulic pressure and is driven to rotate eccentrically around the axis of the back plate 11. 13 is a hydraulic cylinder that supports the crushing head 12 in a vertically movable manner, and an inner chamber 14 of the hydraulic cylinder
is connected via piping 15 to a hydraulic pump 17 driven by a motor 16.

上記配管15の破砕機10から油圧ポンプ17
までの間には、アキユムレータ18が接続されて
おり、該アキユムレータ18の構造は、第3図,
第4図に示す如く、密封状の圧力容器19内に、
一定量の流体を貯えたゴム袋等よりなるブラダ2
0が収容されており、配管15内の圧力が低い状
態においては、配管15内の油圧力P1より、ブラ
ダ20内の流体の圧力P2が高いため、ブラダ20
は第4図に示すように、最も膨張した状態を呈
し、アキユムレータ入口部21とブラダ20との
間に介在して入口部21を開閉する栓22を入口
部21に押し付けている。そして、配管15内の
圧力が、第4図に示した状態におけるブラダ20
の圧力P2より高くなると、栓22が圧力P1とP2
の差圧によつて押し上げられ、配管内の圧油が圧
力容器19内に流入し、第5図に示すように、ブ
ラダ20が圧縮されてその容積が減少するもので
ある。
Hydraulic pump 17 from crusher 10 in pipe 15
An accumulator 18 is connected between them, and the structure of the accumulator 18 is shown in FIG.
As shown in FIG. 4, in a sealed pressure vessel 19,
Bladder 2 consisting of a rubber bag or the like that stores a certain amount of fluid
0 is accommodated and the pressure inside the piping 15 is low, the pressure P 2 of the fluid inside the bladder 20 is higher than the hydraulic pressure P 1 inside the piping 15.
As shown in FIG. 4, the valve is in its most expanded state, and the plug 22 which is interposed between the accumulator inlet part 21 and the bladder 20 to open and close the inlet part 21 is pressed against the inlet part 21. Then, the pressure inside the pipe 15 is adjusted to the bladder 20 in the state shown in FIG.
When the pressure becomes higher than P 2 , the plug 22 is pushed up by the pressure difference between the pressures P 1 and P 2 , and the pressure oil in the pipe flows into the pressure vessel 19, causing the bladder to open as shown in FIG. 20 is compressed to reduce its volume.

この実施例においては、破砕機10の受ける供
給物の硬度に応じた負荷が、正常な運転状態にお
ける平均的な値、即ち平均破砕負荷である時に、
油圧シリンダ内室14内の油圧力が平均破砕圧力
P0となり、かかる平均破砕圧力P0がアキユムレー
タ18にかかつた時に、アキユムレータ18内の
ブラダ20が、第4図に示す如く若干圧縮され、
体積が減少した状態となるように、ブラダ20内
の圧力が設定されている。
In this embodiment, when the load depending on the hardness of the feed material received by the crusher 10 is an average value under normal operating conditions, that is, the average crushing load,
The hydraulic pressure in the hydraulic cylinder inner chamber 14 is the average crushing pressure
When the average crushing pressure P 0 is applied to the accumulator 18, the bladder 20 in the accumulator 18 is slightly compressed as shown in FIG.
The pressure within the bladder 20 is set so that the volume is reduced.

従つて破砕機の負荷が供給物の硬度に応じて変
動し、これによつてシリンダ13内の圧力が変化
すると、配管15内の圧力も同時に変化し、その
変化量に応じてブラダ20が圧縮又は膨張され、
圧力容器19内のブラダを除く体積が変動する。
この変動によつてアキユムレータ18への圧油が
流入又は流出し、その分、破砕頭12が下降又は
上昇するため、出口隙間23が変化して製品の粒
度を変化させることになる。そのため平均破砕圧
力以下で破砕される軟かい原料に対しては出口隙
間がますます狭くなり、より細かな製品を得るこ
とになり、このような層圧縮破砕状態によつて細
粒製品の比率が上昇する。
Therefore, when the load on the crusher changes depending on the hardness of the feed material and the pressure inside the cylinder 13 changes accordingly, the pressure inside the pipe 15 also changes at the same time, and the bladder 20 compresses according to the amount of change. or inflated;
The volume within the pressure vessel 19, excluding the bladder, changes.
Due to this fluctuation, pressure oil flows into or out of the accumulator 18, and the crushing head 12 descends or rises accordingly, changing the outlet gap 23 and changing the particle size of the product. Therefore, for soft raw materials that are crushed below the average crushing pressure, the exit gap becomes narrower and finer products are obtained, and due to this layered compression crushing state, the ratio of fine products increases. Rise.

また運転中に、原料の供給が停止された場合の
ように負荷が大幅に減少すると、シリンダ内圧お
よび配管15内の圧力が低下し、ブラダ20が第
3図示のように最も膨張した状態となるが、この
ような場合においても、破砕頭12と裏板11と
が接触しないように、最少限の出口隙間が確保さ
れており、破砕頭と裏板との金属接触が防止され
ている。
Furthermore, if the load is significantly reduced during operation, such as when the supply of raw materials is stopped, the pressure inside the cylinder and the pressure inside the pipe 15 will drop, and the bladder 20 will be in the most expanded state as shown in the third diagram. However, even in such a case, a minimum exit gap is ensured so that the crushing head 12 and the back plate 11 do not come into contact with each other, and metal contact between the crushing head and the back plate is prevented.

尚、アキユムレータ18と油圧ポンプ17との
間には電磁弁24が挿入されており、通常の運転
時には、この電磁弁24によつて該電磁弁24か
らシリンダ13までの間に貯えられた圧油の量が
一定に保持される。
A solenoid valve 24 is inserted between the accumulator 18 and the hydraulic pump 17, and during normal operation, the solenoid valve 24 releases the pressure oil stored between the solenoid valve 24 and the cylinder 13. amount is held constant.

第2図に示すこの実施例においては、上記アキ
ユムレータ18の他に、高圧用のアキユムレータ
25が付加されており、このアキユムレータ25
の最大膨張時における設定圧力P30はアキユムレ
ータ18の最大膨張時における設定圧力P20より
高い値に設定されている。従つて破砕機が過負荷
となり、破砕頭12が一定の高さ以下まで押し下
げられ、シリンダ13内の圧力がP30より高くな
ると、アキユムレータ18と共にアキユムレータ
25も圧縮され、破砕頭12の下降が促進され
る。
In this embodiment shown in FIG. 2, in addition to the above-mentioned accumulator 18, an accumulator 25 for high pressure is added.
The set pressure P 30 at the time of maximum expansion of the accumulator 18 is set to a higher value than the set pressure P 20 at the time of maximum expansion of the accumulator 18 . Therefore, when the crusher becomes overloaded and the crushing head 12 is pushed down below a certain height, and the pressure inside the cylinder 13 becomes higher than P 30 , the accumulator 25 is compressed together with the accumulator 18, promoting the descent of the crushing head 12. be done.

かかる高圧用アキユムレータ25は、低圧用ア
キユムレータ18の容量が小さい為に、破砕機の
負荷が一定値を越えた場合にアキユムレータ18
によつて破砕頭12の十分な下降が行われず、破
砕機が損傷するのを防止する目的で、油圧力が一
定以上になると自からその油圧力によつて収縮し
て、破砕頭12の下降を促進する危険防止用のア
キユムレータである。
Since the capacity of the low-pressure accumulator 18 is small, the high-pressure accumulator 25 disables the accumulator 18 when the load of the crusher exceeds a certain value.
In order to prevent the crusher from being damaged due to insufficient lowering of the crushing head 12 by It is an accumulator for danger prevention that promotes.

上記の実施例においては、最小出口隙間を確保
するために、負荷が一定以下となつた時、ブラダ
が最も膨張するようになしたが、このような破砕
頭と裏板の接触防止は、破砕機への供給物の有無
によつて油圧ポンプ17を逆転し、シリンダ14
内の圧油の量を減少させるようにしてもよい。こ
の場合、供給物が破砕室へ落下する時当接する供
給物検出スイツチ26を破砕室への供給部に設
け、このスイツチがオフ状態になると電磁弁24
を開けると共に、油圧ポンプ17を逆転させて、
圧力検出器27によつて検出される配管15内の
圧力が、ある設定値以下になるまで油圧ポンプ1
7を逆転させることにより、一定量の出口隙間を
確保すると共に、上記スイツチが供給物の落下を
検出すると、圧力検出器27の値が運転時の平均
圧力P0となるまでポンプ17を正転させ、その状
態で電磁弁24を閉じるようになす。
In the above embodiment, in order to ensure the minimum exit gap, the bladder expands to the maximum when the load falls below a certain level, but this prevention of contact between the crushing head and the back plate Depending on the presence or absence of feed to the machine, the hydraulic pump 17 is reversed and the cylinder 14
The amount of pressure oil in the tank may be reduced. In this case, a feed detection switch 26 that comes into contact with the feed when it falls into the crushing chamber is provided in the supply section to the crushing chamber, and when this switch is turned off, the solenoid valve 24
At the same time, the hydraulic pump 17 is reversed,
The hydraulic pump 1 is operated until the pressure inside the pipe 15 detected by the pressure detector 27 falls below a certain set value.
7 to ensure a certain amount of outlet clearance, and when the switch detects the drop of the feed, it rotates the pump 17 in the forward direction until the value of the pressure detector 27 reaches the average pressure P 0 during operation. Then, in this state, the solenoid valve 24 is closed.

発明の効果 本発明は以上述べたように、略円錘台状の破砕
頭を油圧によつて旋回可能に支持し、下方に向か
つて拡開する略円錘筒状の裏板の内部で上記破砕
頭を偏心旋回させることにより、破砕頭と裏板と
の間の破砕室に噛み込んだ原料を挟圧破砕する旋
動破砕機において、上記破砕頭を支持する破砕機
から油圧源までの油圧回路に、破砕頭に加わる負
荷が平均破砕負荷である時にブラダの内容積が減
少する低圧用のアキユムレータと、上記平均破砕
負荷ではブラダの内容積が変動せず過負荷時には
じめてブラダの内容積が変動する高圧用のアキユ
ムレータとを接続し、上記負荷に応じて上記破砕
室の出口隙間が変動するようになしたことを特徴
とする破砕頭浮遊型旋動機であるから、高価な自
動制御装置を用いずに、低圧用のアキユムレータ
により、平均破砕圧力よりも軟かい原料に対する
破砕も進むので、破砕産物中の細粒製品比率が上
昇し、従来にない新しい粒度分布の製品を得るこ
とに成功したものである。
Effects of the Invention As described above, the present invention supports a substantially conical frustum-shaped crushing head in a rotatable manner by hydraulic pressure, and supports a substantially conical cylindrical crushing head inside a substantially conical cylindrical back plate that expands downward. In a rotary crusher that compresses and crushes the raw material caught in the crushing chamber between the crushing head and the back plate by rotating the crushing head eccentrically, the hydraulic pressure from the crusher that supports the crushing head to the hydraulic source is The circuit includes a low-pressure accumulator that reduces the internal volume of the bladder when the load applied to the crushing head is the average crushing load, and an accumulator for low pressure that reduces the internal volume of the bladder under the above average crushing load, and the internal volume of the bladder does not change at the above average crushing load and only increases when the load is overloaded. Since this is a crushing head floating rotary machine that is connected to a fluctuating high-pressure accumulator so that the exit gap of the crushing chamber fluctuates according to the load, it does not require an expensive automatic control device. Instead, the low-pressure accumulator allows the crushing of materials that are softer than the average crushing pressure, increasing the proportion of fine particles in the crushed product and successfully producing a product with a new particle size distribution that has never been seen before. It is something.

更に、本発明では高圧用のアキユムレータの存
在により破砕機の過負荷をも防止でき、且つこれ
らのアキユムレータが破砕機外に接続されている
のでスペース状の制約がなく、破砕頭を大型夾雑
物から保護して下降させるので、破砕機の寿命を
延長させうるものである。
Furthermore, in the present invention, overloading of the crusher can be prevented by the presence of a high-pressure accumulator, and since these accumulators are connected outside the crusher, there is no space restriction, and the crusher head can be kept away from large foreign objects. Since the crusher is lowered while being protected, the life of the crusher can be extended.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、従来の自動制御装置付き旋動型破砕
機の制御系統図、第2図は本発明の実施例である
旋動型破砕機の油圧回路図、第3図及び第4図
は、アキユムレータの作動状態を示す側断面図で
ある。 符号の説明、10…破砕頭浮遊型旋動破砕機、
11…裏板、12…破砕頭、23…出口隙間、1
8…アキユムレータ、15…配管、17…油圧ポ
ンプ、20…ブラダ、19…圧力容器。
FIG. 1 is a control system diagram of a conventional rotary crusher equipped with an automatic control device, FIG. 2 is a hydraulic circuit diagram of a rotary crusher according to an embodiment of the present invention, and FIGS. 3 and 4 are FIG. 2 is a side sectional view showing the operating state of the accumulator. Explanation of symbols, 10...Crushing head floating type rotary crusher,
11... Back plate, 12... Crushing head, 23... Outlet gap, 1
8...Accumulator, 15...Piping, 17...Hydraulic pump, 20...Bladder, 19...Pressure vessel.

Claims (1)

【特許請求の範囲】[Claims] 1 略円錘台状の破砕頭を油圧によつて旋回可能
に支持し、下方に向かつて拡開する略円錘筒状の
裏板の内部で上記破砕頭を偏心旋回させることに
より、破砕頭と裏板との間の破砕室に噛み込んだ
原料を挟圧破砕する旋動破砕機において、上記破
砕頭を支持する破砕機から油圧源までの油圧回路
に、破砕頭に加わる負荷が平均破砕負荷である時
にブラダの内容積が減少する低圧用のアキユムレ
ータと、上記平均破砕負荷ではブラダの内容積が
変動せず過負荷時にはじめてブラダの内容積が変
動する高圧用のアキユムレータとを接続し、上記
負荷に応じて上記破砕室の出口隙間が変動するよ
うになしたことを特徴とする破砕頭浮遊型旋動
機。
1 The crushing head in the shape of a truncated cone is rotatably supported by hydraulic pressure, and the crushing head is rotated eccentrically inside the back plate in the shape of a roughly conical tube that expands downward. In a rotary crusher that compresses and crushes the raw material caught in the crushing chamber between the top and the back plate, the load applied to the crushing head is applied to the hydraulic circuit from the crusher supporting the crushing head to the hydraulic power source, and the load applied to the crushing head is equal to the average crushing amount. Connecting a low-pressure accumulator in which the internal volume of the bladder decreases when under load, and a high-pressure accumulator in which the internal volume of the bladder does not change under the above-mentioned average crushing load but changes only during overload; A crushing head floating type rotator, characterized in that an outlet clearance of the crushing chamber changes depending on the load.
JP28178785A 1985-12-13 1985-12-13 Crushing head floating type turning crusher Granted JPS61141942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28178785A JPS61141942A (en) 1985-12-13 1985-12-13 Crushing head floating type turning crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28178785A JPS61141942A (en) 1985-12-13 1985-12-13 Crushing head floating type turning crusher

Publications (2)

Publication Number Publication Date
JPS61141942A JPS61141942A (en) 1986-06-28
JPS6234421B2 true JPS6234421B2 (en) 1987-07-27

Family

ID=17643966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28178785A Granted JPS61141942A (en) 1985-12-13 1985-12-13 Crushing head floating type turning crusher

Country Status (1)

Country Link
JP (1) JPS61141942A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008523977A (en) * 2004-12-17 2008-07-10 メッツォ ミネラルズ (フランス) エスアー Cone crusher with a system for adjusting the distance between jaws

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63221852A (en) * 1987-03-11 1988-09-14 株式会社神戸製鋼所 Method of crushing raw material stone
WO2020188824A1 (en) * 2019-03-20 2020-09-24 株式会社アーステクニカ Gyratory crusher as well as overload detection device and method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008523977A (en) * 2004-12-17 2008-07-10 メッツォ ミネラルズ (フランス) エスアー Cone crusher with a system for adjusting the distance between jaws

Also Published As

Publication number Publication date
JPS61141942A (en) 1986-06-28

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