JP2537242Y2 - Clog removal device for rough stone in crusher - Google Patents
Clog removal device for rough stone in crusherInfo
- Publication number
- JP2537242Y2 JP2537242Y2 JP9384992U JP9384992U JP2537242Y2 JP 2537242 Y2 JP2537242 Y2 JP 2537242Y2 JP 9384992 U JP9384992 U JP 9384992U JP 9384992 U JP9384992 U JP 9384992U JP 2537242 Y2 JP2537242 Y2 JP 2537242Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- crusher
- hydraulic breaker
- solenoid
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Crushing And Grinding (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案は、破砕機、特にジョー
クラッシャにおける原石の詰り除去装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher, and more particularly to a device for removing ore clogging in a jaw crusher.
【０００２】[0002]
【従来の技術】従来のジョークラッシャは、通常図１に
示すように、フレーム１に固定した固定歯板２とスイン
グジョー３に取付けた動歯板４を有し、スイングジョー
３の上部は回転軸５に嵌合させ、スイングジョー３の下
部後側にトッグルシート６と牽引ロッド７を設けたもの
である。回転軸５の回転に伴うスイングジョー３の揺動
による動歯板４と固定歯板２との間で原石（塊）を噛み
込み破砕する。2. Description of the Related Art A conventional jaw crusher generally has a fixed tooth plate 2 fixed to a frame 1 and a moving tooth plate 4 mounted to a swing jaw 3, as shown in FIG. A toggle seat 6 and a towing rod 7 are provided at the lower rear side of the swing jaw 3 so as to be fitted to the shaft 5. A rough stone (mass) is caught and crushed between the moving tooth plate 4 and the fixed tooth plate 2 by the swing of the swing jaw 3 accompanying the rotation of the rotating shaft 5.
【０００３】[0003]
【考案が解決しようとする課題】しかしながら、この破
砕時に、原石が前記両歯板の上方で噛み込まないで詰っ
てしまうような事態がしばしば生じた。このように原石
が詰ると、これを除去するために吊鎖、吊り棒などを使
用して取り除いていたが、その作業に長時間かかるとと
もに大変危険であり、このため破砕稼働率の低下をきた
すばかりか安全性の点で問題があった。However, at the time of the crushing, a situation often occurs in which the rough stone is clogged without being bitten above the tooth plates. When the ore is clogged in this way, it has been removed using a chain or a hanging rod to remove it, but the work takes a long time and is very dangerous, which causes a decrease in the crushing operation rate. In addition, there was a problem in terms of safety.
【０００４】この考案は、前記従来の問題点を改良する
ためになしたものであり、原石の詰りを短時間に除去す
るとともに危険な作業をなくすことができる破砕機にお
ける原石の詰り除去装置を提供することを目的とするも
のである。SUMMARY OF THE INVENTION The present invention has been made to improve the above-mentioned conventional problems, and an apparatus for removing a clogged ore in a crusher capable of removing clogged ore in a short time and eliminating dangerous work. It is intended to provide.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するため
に、この考案における破砕機における原石の詰り除去装
置は、破砕機の側部に油圧ブレーカ装置を配設し、該油
圧ブレーカ装置の油圧ブレーカを該破砕機の上方から供
給口近傍に出入りさせ、該油圧ブレーカにより詰った原
石を打撃するようにしたことである。In order to achieve the above object, a device for removing clogged ore in a crusher according to the present invention is provided by disposing a hydraulic breaker device on a side portion of the crusher, and the hydraulic breaker device is provided with a hydraulic breaker device. The breaker is moved in and out of the vicinity of the supply port from above the crusher, and the rough stone clogged by the hydraulic breaker is hit.
【０００６】[0006]
【作用】油圧ブレーカ装置の油圧ブレーカは、破砕機の
正常稼動中は原石の供給の邪魔になるので、破砕機の側
方に退避している。そこで、破砕機の供給口付近に原石
が詰ると、破砕機の稼動中或いは一時停止して油圧ブレ
ーカ装置を作動し、油圧ブレーカを詰った原石の上方に
位置させ、該油圧ブレーカを作動して原石に打撃を加え
る。これにより、原石は押し込まれるとともに破砕され
て詰りが除去され、破砕機に噛み込まれる。このように
油圧ブレーカ装置によって原石の詰りが短時間に除去さ
れかつ危険な作業が回避されるのである。詰りが解除さ
れれば、油圧ブレーカの作動を停止し、油圧ブレーカ装
置を作動して元の位置に退避させる。The hydraulic breaker of the hydraulic breaker device is retracted to the side of the crusher because the crusher interferes with the supply of raw stones during normal operation of the crusher. Therefore, when the ore is clogged near the supply port of the crusher, the crusher is operated or temporarily stopped and the hydraulic breaker device is operated, the hydraulic breaker is positioned above the clogged rough, and the hydraulic breaker is operated. Hit the rough. As a result, the rough stone is pushed in and crushed, the clog is removed, and the rough stone is bitten by the crusher. Thus, the clogging of the rough stone is removed in a short time by the hydraulic breaker device, and dangerous work is avoided. When the clog is released, the operation of the hydraulic breaker is stopped, and the hydraulic breaker device is operated to retract to the original position.
【０００７】[0007]
【実施例】この考案の実施例を図２〜図４に基づいて説
明する。図２は油圧ブレーカ装置で、この装置は次のよ
うに構成される。機台８上に水平方向旋回可能に旋回部
９を設け、旋回部９にブーム１０とブーム１１を順次枢
着し、ブーム１１の先端に、油圧ブレーカ１３を固定し
た取付け板１２を枢着したものである。油圧ブレーカ１
３は、図示省略の内蔵されたピストンの運動エネルギー
が打撃ロッド１３ａを打撃することにより打撃エネルギ
ーに変換され、打撃ロッド１３ａによって岩石などに打
撃を加え破砕するもので、公知のものである。１４は機
台８と旋回部９との間に設けた油圧シリンダ、１５は旋
回部９とブーム１０との間に設けた油圧シリンダ、１６
はブーム１０とブーム１１との間に設けた油圧シリン
ダ、１７はブーム１１と取付け板１２との間に、レバー
１８，１９を介して連結した油圧シリンダである。上記
油圧ブレーカ装置はジョークラッシャの側部に配設さ
れ、破砕時に原石が詰ると、該油圧ブレーカ装置の油圧
ブレーカ１３を油圧シリンダ１４，‥‥‥１７を作動し
て図１に示すように原石の上方に移動させる。An embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows a hydraulic breaker device, which is configured as follows. A turning part 9 is provided on the machine base 8 so as to be able to turn in the horizontal direction, and a boom 10 and a boom 11 are sequentially pivoted on the turning part 9, and a mounting plate 12 to which a hydraulic breaker 13 is fixed is pivotally attached to the tip of the boom 11. Things. Hydraulic breaker 1
Numeral 3 is a well-known type in which kinetic energy of a built-in piston (not shown) is converted into striking energy by striking a striking rod 13a, and the striking rod 13a strikes and crushes rocks. 14 is a hydraulic cylinder provided between the machine base 8 and the swivel unit 9, 15 is a hydraulic cylinder provided between the swivel unit 9 and the boom 10, 16
Is a hydraulic cylinder provided between the boom 10 and the boom 11, and 17 is a hydraulic cylinder connected between the boom 11 and the mounting plate 12 via levers 18 and 19. The hydraulic breaker device is disposed on the side of the jaw crusher, and when the ore is clogged during crushing, the hydraulic breaker 13 of the hydraulic breaker device is operated by operating the hydraulic cylinders 14 and # 17 as shown in FIG. Move it up.
【０００８】図３は油圧回路図で、油タンク２０の油を
モータ２１により駆動される油圧ポンプ２２によって吸
上げ、油圧ブレーカポンプ２２からの圧油を圧油管路２
３、各電磁弁２４，２５，２６，２７を経て各油圧シリ
ンダ１４，‥‥‥１７に供給して作動せしめるものであ
る。また、圧油管路２３から分岐して電磁弁２８を経て
油圧ブレーカ１３に接続する。２９，３０は戻り管路で
ある。３１は圧油管路２３に設けたリリーフバルブ、３
２はリリーフバルブ３１に組込んだ電磁弁である。電磁
弁２４，‥‥‥２７はそれぞれソレノイド２４ａ，２４
ｂ，‥‥‥２７ａ，２７ｂにより３位置の切換えができ
る方向切換弁である。電磁弁２８，３２はそれぞれソレ
ノイド２８ａ，３２ａにより２位置の切換えができる方
向切換弁である。FIG. 3 is a hydraulic circuit diagram. The oil in the oil tank 20 is sucked up by a hydraulic pump 22 driven by a motor 21 and the hydraulic oil from the hydraulic breaker pump 22 is supplied to a hydraulic oil line 2.
3. It is supplied to each of the hydraulic cylinders 14, # 17 via the respective solenoid valves 24, 25, 26, 27 to operate them. Further, the hydraulic fluid is branched from the pressure oil pipeline 23 and connected to the hydraulic breaker 13 via the electromagnetic valve 28. 29 and 30 are return lines. 31 is a relief valve provided in the pressure oil pipeline 23, 3
Reference numeral 2 denotes a solenoid valve incorporated in the relief valve 31. Solenoid valves 24 and # 27 are solenoids 24a and 24, respectively.
b, # 27a, 27b are directional switching valves that can switch between three positions. The solenoid valves 28 and 32 are directional switching valves that can be switched between two positions by solenoids 28a and 32a, respectively.
【０００９】図４は制御回路図で、３３，３４，３５，
３６は各油圧シリンダ１４，‥‥‥１７作動用の電磁弁
２４，‥‥‥２７のスイッチで、各スイッチのａは
「切」位置、ｂおよびｃは「入」位置である。そして、
ａの「切」位置では電流は遮断され、ｂおよびｃの
「入」位置で電流が流れる。したがって、スイッチ３３
をｂ側にすると、電磁弁２４のソレノイド２４ａが作動
し、ｃ側にすると、ソレノイド２４ｂが作動する。以
下、スイッチ３４，３５，３６によりソレノイド２５
ａ，‥‥‥２７ｂが作動する。FIG. 4 is a control circuit diagram showing 33, 34, 35,
Reference numeral 36 denotes a switch for operating the hydraulic cylinders 14 and the solenoid valves 24 and # 27 for operating the # 17, and a of each switch is an "off" position, and b and c are "on" positions. And
The current is interrupted at the “off” position of a, and the current flows at the “on” positions of b and c. Therefore, the switch 33
When is set to the b side, the solenoid 24a of the solenoid valve 24 is operated, and when set to the c side, the solenoid 24b is operated. Hereinafter, the solenoid 25 is operated by the switches 34, 35 and 36.
a, # 27b operate.
【００１０】３７は油圧ブレーカ１３作動用の電磁弁２
８のスイッチで、ａは「切」位置、ｂは「入」位置であ
る。スイッチ３７をｂ側にすると、電磁弁２８のソレノ
イド２８ａが作動する。Ｘ１，‥‥‥Ｘ８はソレノイド
２４ａ，‥‥‥２７ｂのリレー、Ｘ９はソレノイド２８
ａのリレー、ｘ1，‥‥‥ｘ9はそれぞれＸ１，‥‥‥Ｘ
９のリレー接点である。したがって、リレー接点ｘ1，
‥‥‥ｘ9の開閉により、電磁弁３２のソレノイド３２
ａが作動するのである。Reference numeral 37 denotes a solenoid valve 2 for operating the hydraulic breaker 13.
In the switch 8, a is the “off” position and b is the “on” position. When the switch 37 is set to the b side, the solenoid 28a of the solenoid valve 28 operates. X1 and X8 are relays of solenoids 24a and 27b, and X9 is a solenoid 28
a, x1 and 1x9 are X1 and ‥‥‥ X, respectively
Nine relay contacts. Therefore, relay contact x1,
開 閉 Opening and closing x9 causes solenoid 32 of solenoid valve 32
a is activated.
【００１１】次に、この考案の実施例の作用を説明す
る。まず、油圧ブレーカ装置の作動について述べる。モ
ータ２１を起動して油圧ポンプ２２を作動するとともに
電磁弁２４のスイッチ３３を「切」からａ側に「入」に
すると、ソレノイド２４ａが作動して電磁弁２４が切り
替わる。同時にリレーＸ１が通電されてリレー接点ｘ1
が接触し、ソレノイド３２ａが作動して電磁弁３２が切
り替わる。すなわち「開」から「閉」になる（負荷状態
となる）。これにより油圧ポンプ２２からの圧油は圧油
管路２３、リリーフバルブ３１、電磁弁２４を経て油圧
シリンダ１４の後部側に入り、旋回部９を所要量旋回さ
せる。一方、油圧シリンダ１４の前部側の油は電磁弁２
４、戻り管路２９を経て油タンク２０に環流する。次
に、モータ２１が起動している状態で、電磁弁２４のス
イッチ３３をｃ側に「入」にすると、スイッチ３３のｂ
側が「切」となって、リレーＸ１のリレー接点ｘ1 が解
除されるとともにソレノイド２４ｂが作動して電磁弁２
４が切り替わる。同時にリレーＸ２が通電されてリレー
接点ｘ2 が接触し、電磁弁３２のソレノイド３２ａが前
記と同様に作動して電磁弁３２が切り替わる。すなわ
ち、「開」から「閉」になる（負荷状態となる）。これ
により油圧ポンプ２２からの圧油は、圧油管路２３、リ
リーフバルブ３１、電磁弁２４を経て油圧シリンダ１４
の前部側に入り、旋回部９を所要量旋回させる。一方、
油圧シリンダ１４の後部側の油は電磁弁２４、戻り管路
２９を経て油タンク２０に環流する。Next, the operation of the embodiment of the present invention will be described. First, the operation of the hydraulic breaker device will be described. When the motor 21 is started to operate the hydraulic pump 22 and the switch 33 of the solenoid valve 24 is switched from “OFF” to “ON” on the a side, the solenoid 24a is activated and the solenoid valve 24 is switched. At the same time, the relay X1 is energized and the relay contact x1
Contact, and the solenoid 32a operates to switch the electromagnetic valve 32. That is, the state changes from "open" to "closed" (the state becomes a load state). As a result, the pressure oil from the hydraulic pump 22 enters the rear side of the hydraulic cylinder 14 via the pressure oil pipeline 23, the relief valve 31, and the solenoid valve 24, and turns the turning portion 9 by a required amount. On the other hand, the oil on the front side of the hydraulic cylinder 14 is
4. Reflux to the oil tank 20 via the return line 29. Next, when the switch 33 of the solenoid valve 24 is turned “on” to the side c while the motor 21 is running, the b
Side becomes "OFF", the relay contact x1 of the relay X1 is released, and the solenoid 24b operates to operate the solenoid valve 2.
4 switches. At the same time, the relay X2 is energized and the relay contact x2 comes into contact, the solenoid 32a of the solenoid valve 32 operates in the same manner as described above, and the solenoid valve 32 is switched. That is, the state changes from "open" to "closed" (the load state). Accordingly, the pressure oil from the hydraulic pump 22 passes through the pressure oil line 23, the relief valve 31, and the solenoid valve 24, and
And turns the turning section 9 by a required amount. on the other hand,
The oil on the rear side of the hydraulic cylinder 14 flows back to the oil tank 20 via the solenoid valve 24 and the return line 29.
【００１２】前記のようにして油圧シリンダ１４の作動
が終れば、スイッチ３３を「切」にする。前記スイッチ
３３の「切」と同時にリレーＸ２への通電が遮断される
ので、リレー接ｘ2 が開放され、電磁弁３２のソレノイ
ド３２ａへの通電が遮断されるため、電磁弁３２が切り
替わり元の位置に復帰する。すなわち、「閉」から
「開」になる（無負荷状態となる）。これにより、油圧
ポンプ２２からの圧油はリリーフバルブ３１、電磁弁３
２を経て油タンク２０に環流する。前記と同様の操作を
繰り返して順次油圧シリンダ１５，１６，１７を作動し
て油圧ブレーカ１３をジョークラッシャの詰った原石上
方に位置させる。When the operation of the hydraulic cylinder 14 is completed as described above, the switch 33 is turned off. At the same time as the switch 33 is turned off, the power supply to the relay X2 is cut off, so that the relay connection x2 is opened, and the power supply to the solenoid 32a of the solenoid valve 32 is cut off. Return to. That is, the state changes from "closed" to "opened" (no-load state). As a result, the pressure oil from the hydraulic pump 22 is supplied to the relief valve 31 and the solenoid valve 3.
After that, it flows back to the oil tank 20. By repeating the same operation as above, the hydraulic cylinders 15, 16, 17 are sequentially operated to position the hydraulic breaker 13 above the rough stone filled with the jaw crusher.
【００１３】次に、油圧ブレーカ１３の作動について述
べる。電磁弁２８のスイッチ３７を「切」からａ側に
「入」にすると、ソレノイド２８ａが作動して電磁弁２
８が切り替わる。同時にリレーＸ９が通電されてリレー
接点ｘ9 が接触し、ソレノイド３２ａが作動して電磁弁
３２が切り替わる。すなわち、「開」から「閉」になる
（負荷状態となる）。これにより油圧ポンプ２２からの
圧油は、圧油管路２３、リリーフバルブ３１、電磁弁２
８を経て油圧ブレーカ１３の機構により打撃ロッド１３
ａに打撃を加え、このロッド１３ａによって原石を打撃
破砕する。Next, the operation of the hydraulic breaker 13 will be described. When the switch 37 of the solenoid valve 28 is switched from “off” to “on” on the a side, the solenoid 28a operates and the solenoid valve 2
8 switches. At the same time, the relay X9 is energized, the relay contact x9 comes into contact, the solenoid 32a operates, and the solenoid valve 32 switches. That is, the state changes from "open" to "closed" (the state becomes a load state). Accordingly, the pressure oil from the hydraulic pump 22 is supplied to the pressure oil line 23, the relief valve 31, the solenoid valve 2
8 through the mechanism of the hydraulic breaker 13
a is hit, and the ore is hit and crushed by the rod 13a.
【００１４】前記のようにして原石の詰りが除去されれ
ば、油圧ブレーカ１３を停止する。すなわち、スイッチ
３７をａ側に「切」にすると、ソレノイド２８ａにより
電磁弁２８が切り替わる。これにより圧油管路２３の圧
油は電磁弁２８、排油管路３０を経て油タンク２０に環
流する。スイッチ３７の「切」と同時にリレーＸ９への
通電が遮断されるので、リレー接点ｘ9 が開放され、電
磁弁３２のソレノイド３２ａへの通電が遮断されるた
め、電磁弁３２が切り替わり元の位置に復帰する。すな
わち「閉」から「開」になる（無負荷状態となる）。こ
れにより、油圧ポンプ２２からの圧油はリリーフバルブ
３１、電磁弁３２を経て油タンク２０に環流する。次い
で、油圧シリンダ１７，‥‥‥１４を作動して油圧ブレ
ーカ１３を元の位置に戻した後、モータ２１を停止す
る。When the blockage of the rough stone is removed as described above, the hydraulic breaker 13 is stopped. That is, when the switch 37 is turned "off" to the a side, the solenoid valve 28 is switched by the solenoid 28a. As a result, the pressure oil in the pressure oil line 23 flows back to the oil tank 20 via the solenoid valve 28 and the oil drain line 30. At the same time as the switch 37 is turned off, the energization of the relay X9 is cut off, so that the relay contact x9 is opened and the energization of the solenoid 32a of the solenoid valve 32 is cut off, so that the solenoid valve 32 is switched to the original position. Return. That is, the state changes from "closed" to "open" (no load state). As a result, the pressure oil from the hydraulic pump 22 flows back to the oil tank 20 via the relief valve 31 and the solenoid valve 32. Next, after the hydraulic cylinders 17 and # 14 are operated to return the hydraulic breaker 13 to the original position, the motor 21 is stopped.
【００１５】前記のように油圧ブレーカ装置は遠隔制御
ができる。また、油圧ブレーカ１３および油圧シリンダ
１４，‥‥‥１７の無動作時、すなわち電磁弁２４，‥
‥‥２７および２８が「切」位置の状態では、モータ２
１の起動時から停止時までの間にあって油圧ポンプ２２
の作動による圧油はリリーフ弁３１から電磁弁３２を経
て油タンク２０に戻され、無負荷状態が保たれるため、
油の冷却装置が不要となる。As described above, the hydraulic breaker device can be remotely controlled. Further, when the hydraulic breaker 13 and the hydraulic cylinders 14, # 17 are not operated, that is, the solenoid valves 24, # 17
When the # 27 and 28 are in the "OFF" position, the motor 2
1 between the start and stop of the hydraulic pump 22
Is returned from the relief valve 31 to the oil tank 20 via the solenoid valve 32, and the no-load state is maintained.
The need for an oil cooling device is eliminated.
【００１６】[0016]
【考案の効果】この考案の破砕機における原石の詰り除
去装置は、破砕機の側部に油圧ブレーカ装置を配設し、
該油圧ブレーカ装置の油圧ブレーカを該破砕機の上方か
ら供給口近傍に出入りさせ、該油圧ブレーカにより詰っ
た原石を打撃するようにしたから、原石の詰りが短時間
に除去されかつ危険な作業が回避されるのである。この
ため、破砕稼働率の低下をきたすことがない、しかも安
全性が著しく向上することができるのである。[Effect of the Invention] The device for removing ore clogging in the crusher of the present invention is provided with a hydraulic breaker device on the side of the crusher,
Since the hydraulic breaker of the hydraulic breaker device is moved in and out of the vicinity of the supply port from above the crusher to hit the rough stone clogged by the hydraulic breaker, clogging of the rough stone is removed in a short time, and dangerous work is performed. It will be avoided. Therefore, the crushing operation rate does not decrease, and the safety can be significantly improved.
【図１】この考案の実施例に係る破砕機における原石の
詰り除去装置の要部を示す断面図。FIG. 1 is a sectional view showing a main part of an ore clogging removal device in a crusher according to an embodiment of the present invention.
【図２】この考案の実施例を係る油圧ブレーカ装置の側
面図。FIG. 2 is a side view of the hydraulic breaker device according to the embodiment of the present invention.
【図３】この考案の実施例を係る油圧ブレーカ装置の油
圧回路図。FIG. 3 is a hydraulic circuit diagram of a hydraulic breaker device according to an embodiment of the present invention.
【図４】この考案の実施例を係る油圧ブレーカ装置の制
御回路図。FIG. 4 is a control circuit diagram of the hydraulic breaker device according to the embodiment of the present invention.
１３ 油圧ブレーカ １４，１５，１６，１７ 油圧シリンダ ２２ 油圧ポンプ ２４，２５，２６，２７，２８ 電磁弁 ３１ リリーフバルブ ３２ 電磁弁 13 Hydraulic Breaker 14, 15, 16, 17 Hydraulic Cylinder 22 Hydraulic Pump 24, 25, 26, 27, 28 Solenoid Valve 31 Relief Valve 32 Solenoid Valve
Claims (1)
し、該油圧ブレーカ装置の油圧ブレーカを該破砕機の上
方から供給口近傍に出入りさせ、該油圧ブレーカにより
詰った原石を打撃するようにしたことを特徴とする破砕
機における原石の詰り除去装置。1. A hydraulic breaker device is provided on a side portion of a crusher, and a hydraulic breaker of the hydraulic breaker device is moved in and out of a vicinity of a supply port from above the crusher to hit a rough stone clogged by the hydraulic breaker. A device for removing clogged ore in a crusher, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9384992U JP2537242Y2 (en) | 1992-12-28 | 1992-12-28 | Clog removal device for rough stone in crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9384992U JP2537242Y2 (en) | 1992-12-28 | 1992-12-28 | Clog removal device for rough stone in crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0652933U JPH0652933U (en) | 1994-07-19 |
| JP2537242Y2 true JP2537242Y2 (en) | 1997-05-28 |
Family
ID=14093860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9384992U Expired - Lifetime JP2537242Y2 (en) | 1992-12-28 | 1992-12-28 | Clog removal device for rough stone in crusher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2537242Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327788A (en) * | 2011-08-03 | 2012-01-25 | 山西东华机械有限公司 | Hydraulic crushing device for heaving floor in roadway |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101668239B1 (en) * | 2015-07-27 | 2016-10-28 | 주식회사 쵸이스테크 | Saftey device of jaw crusher |
-
1992
- 1992-12-28 JP JP9384992U patent/JP2537242Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327788A (en) * | 2011-08-03 | 2012-01-25 | 山西东华机械有限公司 | Hydraulic crushing device for heaving floor in roadway |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0652933U (en) | 1994-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4638779A (en) | Apparatus for controlling an engine in a hydraulically driven vehicle | |
| JP2537242Y2 (en) | Clog removal device for rough stone in crusher | |
| JPH08199632A (en) | Oil hydraulic circuit for hydraulic shovel | |
| KR101535303B1 (en) | Control system for autometically starting and stoping operation of breaker in excavator | |
| JP3113562B2 (en) | Electric device control method in vehicle | |
| JP3786891B2 (en) | Hydraulic circuit of excavator | |
| JP3908639B2 (en) | Engine control device for work equipment | |
| JP3597708B2 (en) | Depressurizing device and depressurizing method for hydraulic working machine | |
| JP2978750B2 (en) | Construction machinery | |
| JPH035531A (en) | Method and device for controlling service valve for hydraulic excavator | |
| JPH0624445Y2 (en) | Swing hydraulic circuit of hydraulic shovel | |
| JP3571025B2 (en) | Attachment with electromagnet for construction machinery | |
| JP3986646B2 (en) | Crusher with magnet | |
| JP2688971B2 (en) | Hydraulic circuit for crusher | |
| JP3039456U (en) | Jaw crusher | |
| JP3123660B2 (en) | Crusher rotation free device | |
| JP3166947B2 (en) | Self-propelled crushing machine | |
| SU1106879A1 (en) | Hydraulic drive of front-end loader working equipment | |
| JPH0258414B2 (en) | ||
| JP2537398Y2 (en) | Operation device for grap pull saw | |
| JP4194440B2 (en) | Self-propelled crusher | |
| JP2542847Y2 (en) | Attachment shutoff device for construction machinery | |
| JPH0674034B2 (en) | Breaking device for revolving structure parking | |
| SU1134678A1 (en) | Hydraulic drive of working equipment of power shovel | |
| SU1490235A1 (en) | Hydraulic drive for control of working equipment of front-end loader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |