JP5546116B2 - Driving apparatus and driving method - Google Patents

Driving apparatus and driving method Download PDF

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JP5546116B2
JP5546116B2 JP2008257069A JP2008257069A JP5546116B2 JP 5546116 B2 JP5546116 B2 JP 5546116B2 JP 2008257069 A JP2008257069 A JP 2008257069A JP 2008257069 A JP2008257069 A JP 2008257069A JP 5546116 B2 JP5546116 B2 JP 5546116B2
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弘志 中山
智宏 橘川
和田  弘
秀樹 冨永
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株式会社中山鉄工所
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Description

本発明は、破砕機としてのジョークラッシャーを対象とした駆動装置及び駆動方法に関し、特に、起動時のモータ制御技術に関する。   The present invention relates to a driving device and a driving method for a jaw crusher as a crusher, and more particularly to a motor control technique at the time of startup.

従来、産業機器としての破砕機としてジョークラッシャーが知られている(特許文献1参照)。
このジョークラッシャーは、本体枠に固定した固定歯に対して近接離反する動歯をスイングジョーに取付け、このスイングジョーの上部を本体枠に軸支した駆動軸の偏心部に取付け、この駆動軸の回転によりスイングジョーを揺動させることで動歯を固定歯に対して近接離反させ原料を破砕させるようになっている。
この場合、前記駆動軸には駆動手段として電動モータが連結され、この電動モータのみの駆動によって駆動軸を回転(駆動)させるようになっている。
Conventionally, a jaw crusher is known as a crusher as an industrial device (see Patent Document 1).
This jaw crusher is attached to a swing jaw with a moving tooth that moves close to and away from a fixed tooth fixed to a main body frame, and an upper portion of the swing jaw is attached to an eccentric portion of a drive shaft that is pivotally supported on the main body frame. By swinging the swing jaw by rotation, the moving teeth are moved away from the fixed teeth to crush the raw material.
In this case, an electric motor is connected to the drive shaft as drive means, and the drive shaft is rotated (driven) by driving only the electric motor.

しかしながら、ジョークラッシャーの駆動手段としてカゴ形電動モータを用いた場合、その起動時の過大な電流を抑えるためスターデルタやリアクトル抵抗器等を使用した起動方法が多く用いられるが、この方法では電圧を下げる分、起動トルクが下がる。
また、ジョークラッシャーの破砕室に原料が入ったまま起動する場合には、トルク不足で起動できずに定格電量を越える電流が流れ続け、この結果、電動モータの焼損といったトラブルが生じることがある。
上記のような起動時における電動モータの焼損を回避するため、従来、起動トルクの減少がない巻線形電動モータを使用することもある。
このように、カゴ形電動モータでは焼損が頻繁に発生し、また、巻線形電動モータでは抵抗器等の付帯設備が必要になるため、コスト負担が増大してしまうし、これらを収容する制御盤の容積が大きくなり、コンパクト化の障害になっているという問題があった。
特許公開平11−319592号公報
However, when a cage-type electric motor is used as a drive means for the jaw crusher, a starting method using a star delta or a reactor resistor is often used to suppress an excessive current at the time of starting. The starting torque decreases by the lowering.
Further, when starting with the raw material in the crushing chamber of the jaw crusher, the motor cannot be started due to insufficient torque, and a current exceeding the rated power continues to flow. As a result, troubles such as burning of the electric motor may occur.
In order to avoid burning of the electric motor at the time of starting as described above, a wire-wound electric motor that does not have a decrease in starting torque may be conventionally used.
As described above, burnout frequently occurs in the cage type electric motor, and additional equipment such as a resistor is required in the wound type electric motor, so that the cost burden increases, and the control panel that accommodates them. There has been a problem that the volume of the battery has become an obstacle to downsizing.
Japanese Patent Publication No. 11-319592

本発明は、通常運転用電動モータ起動用油圧モータとを併用し、起動時には、低回転域でも大きな回転力(トルク)を得ることができると共に、電動モータのような焼損といったトラブルがない起動用油圧モータを利用し、一方、駆動軸が一定の回転数まで上昇したのちは、回転力が一定した通常運転用電動モータに切り替えるという制御を行う技術である。
これにより、従来、電動モータに設けていたスターデルタやリアクトル抵抗器等の付帯設備を不要又は小さくしてコストの低減、及び制御盤のコンパクト化、マグネットスイッチの接点寿命の長期化を図る。
また、起動時には通常運転用電動モータを停止又は空転させることにより電源設備容量を低下させ、かつ起動時に保護回路を作動させる制御を不要にすることができる駆動装置及び駆動方法を提供することを課題としている。
The present invention uses an electric motor for normal operation and a hydraulic motor for start-up together, and at the time of start-up, a large rotational force (torque) can be obtained even in a low rotation range, and start-up without troubles such as burning caused by an electric motor is possible. utilizing use hydraulic motor, whereas, after the drive shaft has risen to a certain rotational speed, a technique for controlling to switch to the normal electric motor driving the rotating force is constant.
As a result, conventional equipment such as a star delta and a reactor resistor provided in the electric motor is unnecessary or reduced to reduce costs, to make the control panel more compact, and to extend the contact life of the magnet switch.
It is another object of the present invention to provide a driving apparatus and a driving method capable of reducing the capacity of a power supply facility by stopping or idling an electric motor for normal operation at the time of starting, and making it unnecessary to perform a control for operating a protection circuit at the time of starting. It is said.

上記の課題を解決するために、本発明(請求項1)の駆動装置は、
ジョークラッシャーを対象とした駆動装置(5)であって、
駆動軸(50)に連結された通常運転用電動モータ及び起動用油圧モータ(M2)と、
起動時は起動用油圧モータ(M2)により駆動軸(50)を駆動させ、この駆動軸(50)が設定回転数に上昇したのを検出すると、起動用油圧モータ(M2)から通常運転用電動モータ(M1)に切り替えて駆動軸(50)を駆動させるように制御する制御装置(51)と、を備え、
前記制御装置(51)は、駆動軸(50)が設定回転数に上昇したのを検出できないときは起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を逆転させ、その逆転状態における駆動軸(50)の回転数を検出し、これが所定回転数に上昇したのを検出すると起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を再び正転させ、かつ前記起動用油圧モータ(M2)の逆転状態における駆動軸(50)が所定回転数に上昇したのを検出できないときはその否検出回数をカウンターによってカウントし、設定カウント数までは起動用油圧モータ(M2)の正転と逆転を繰り返すように制御する構成とした。
In order to solve the above-described problems, a drive device according to the present invention (Claim 1) includes:
A drive device (5) for a jaw crusher,
A normal operation electric motor and a starting hydraulic motor (M2) connected to the drive shaft (50);
At the time of start-up, the drive shaft (50) is driven by the start-up hydraulic motor (M2), and when it is detected that the drive shaft (50) has risen to the set rotational speed, the start-up hydraulic motor (M2) is driven by the electric motor for normal operation. A control device (51) that controls to drive the drive shaft (50) by switching to the motor (M1),
The control device (51) is reversed the hydraulic motor (M2) for starting after stopping or idling of the hydraulic motor (M2) for starting when the drive shaft (50) is unable to detect that increased to the set rotational speed Then, the rotational speed of the drive shaft (50) in the reverse rotation state is detected, and when it is detected that the rotational speed has increased to a predetermined rotational speed, the starting hydraulic motor (M2) is stopped or idling and then the starting hydraulic motor (M2) is turned off. When it is not possible to detect that the drive shaft (50) in the reverse rotation state of the start-up hydraulic motor (M2) has increased to a predetermined number of revolutions, the number of times of detection is counted by a counter, and the set count number is reached. Has a configuration in which the start hydraulic motor (M2) is controlled to repeat normal rotation and reverse rotation.

又、本発明(請求項2)の駆動方法は、
ジョークラッシャーを対象とした駆動方法であって、
駆動軸(50)に通常運転用電動モータ(M1)及び起動用油圧モータ(M2)を連結させ、
起動時は起動用油圧モータ(M2)により駆動軸(50)を駆動させ、この駆動軸(50)が設定回転数に上昇したのを検出すると、起動用油圧モータ(M2)から通常運転用電動モータ(M1)に切り替えて駆動軸(50)を駆動させるように制御装置(51)で制御させ、
前記制御装置(51)は、駆動軸(50)が設定回転数に上昇したのを検出できないときは起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を逆転させ、その逆転状態における駆動軸(50)の回転数を検出し、これが所定回転数に上昇したのを検出すると起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を再び正転させ、
かつ前記起動用油圧モータ(M2)の逆転状態における駆動軸(50)が所定回転数に上昇したのを検出できないときはその否検出回数をカウンターによってカウントし、設定カウント数までは起動用油圧モータ(M2)の正転と逆転を繰り返すように制御させる構成とした。
The driving method of the present invention (Claim 2)
A drive method for jaw crusher,
An electric motor (M1) for normal operation and a hydraulic motor for start (M2) are connected to the drive shaft (50),
At the time of start-up, the drive shaft (50) is driven by the start-up hydraulic motor (M2), and when it is detected that the drive shaft (50) has risen to the set rotational speed, the start-up hydraulic motor (M2) is driven by the electric motor for normal operation. The controller (51) controls the motor (M1) so as to drive the drive shaft (50) by switching to the motor (M1),
The control device (51) is reversed the hydraulic motor (M2) for starting after stopping or idling of the hydraulic motor (M2) for starting when the drive shaft (50) is unable to detect that increased to the set rotational speed detects the rotational speed of the drive shaft (50) in its reverse rotation state, which is a hydraulic motor (M2) for starting after stopping or idling of the hydraulic motor (M2) for startup and detects that the increased to a predetermined rotational speed Rotate forward again,
In addition, when it is not possible to detect that the drive shaft (50) in the reverse rotation state of the start hydraulic motor (M2) has increased to a predetermined number of rotations, the number of times of detection is counted by a counter, and the start hydraulic motor up to the set count number (M2) is configured to be controlled to repeat normal rotation and reverse rotation.

本発明の駆動装置(請求項1)及び駆動方法(請求項2)は、駆動軸に通常運転用電動モータ及び起動用油圧モータを連結させている。 In the drive device (Claim 1) and the drive method (Claim 2) of the present invention, an electric motor for normal operation and a hydraulic motor for start-up are connected to a drive shaft.

そして、前記通常運転用電動モータ及び起動用油圧モータの運転を制御装置によって制御させるもので、起動時は起動用油圧モータにより駆動軸を駆動させる。
この起動用油圧モータによる駆動軸の回転数が設定回転数まで上昇すると、起動用油圧モータを停止又は空転させて通常運転用電動モータを起動させるもので、このように駆動手段を起動用油圧モータから通常運転用電動モータに切り替えて駆動軸を駆動させるように制御させるものである。
Then, the operation of the electric motor for normal operation and the hydraulic motor for start-up is controlled by a control device, and at the time of start-up, the drive shaft is driven by the start-up hydraulic motor .
When the rotational speed of the drive shaft by the startup hydraulic motor rises to the set rotational speed, the startup hydraulic motor is stopped or idled to start the normal operation electric motor. Is switched to the normal operation electric motor to drive the drive shaft.

従って、大きな負荷がかかる起動時には、低回転域でも大きな回転力が得られる起動用油圧モータを使用するため、楽に起動させることができるし、電動モータのような焼損といったトラブルを回避できる。
また、起動後、設定回転数まで上昇すると、一定の回転力を有する通常運転用電動モータにより安定して通常運転させることができる。
Therefore, at the time of start-up where a large load is applied, the start- up hydraulic motor that can obtain a large rotational force even in a low rotation range is used, so that it can be started up easily and troubles such as burnout like an electric motor can be avoided.
Further, after the start-up, when the engine speed is increased to the set rotational speed, the normal operation can be stably performed by the normal operation electric motor having a constant rotational force.

これにより、スターデルタやリアクトル抵抗器等の付帯設備を不要又は小さくでき、コストの低減、及び制御盤のコンパクト化、マグネットスイッチの接点寿命の長期化を図ることができる。   Thereby, ancillary facilities such as a star delta and a reactor resistor can be omitted or reduced, and the cost can be reduced, the control panel can be made compact, and the contact life of the magnet switch can be extended.

また、起動時は通常運転用電動モータを停止又は空転させるため、電源設備容量を低下させてランニングコストの低減を図ることができるし、また、起動時にサーマルが働かないようにする制御が不要になるためモータの焼損を抑制できる。 In addition, since the electric motor for normal operation is stopped or idling at the time of startup, the power supply capacity can be reduced to reduce the running cost, and control that prevents the thermal from working at startup is unnecessary. Therefore, motor burnout can be suppressed.

なお、通常運転に起動用油圧モータを使用すると、起動用油圧モータの駆動設備を大掛かりにする必要が生じ、コスト負担が増大したりメンテナンスに手間がかかるなどしたりして好ましくない。 Note that the use of the start hydraulic motor for normal operation is not preferable because it requires a large drive equipment for the start hydraulic motor , which increases the cost burden and requires maintenance.

図1は産業機器としての破砕機であるジョークラッシャーを対象とした駆動装置の実施例を示す側面図、図2はその駆動装置を示す断面図である。   FIG. 1 is a side view showing an embodiment of a drive device for a jaw crusher as a crusher as an industrial device, and FIG. 2 is a cross-sectional view showing the drive device.

前記ジョークラッシャー1の基本構成は、本体枠10に固定歯21が固定され、この固定歯21に対して近接離反することにより固定歯21との間の破砕室22で原料を挟圧して破砕する動歯23がスイングジョー24に取付けられている。
スイングジョー24の上部は、本体枠10に軸受11,11により軸支した駆動軸50の偏心軸部50aに軸受12,12を介して取付けられ、この偏心軸部50aの回転により揺動することで動歯23が固定歯21に対して近接離反し原料を破砕する。
The basic configuration of the jaw crusher 1 is that a fixed tooth 21 is fixed to the main body frame 10, and the raw material is clamped and crushed in a crushing chamber 22 between the fixed tooth 21 by approaching and moving away from the fixed tooth 21. A moving tooth 23 is attached to the swing jaw 24.
The upper portion of the swing jaw 24 is attached to the eccentric shaft portion 50a of the drive shaft 50 that is pivotally supported on the main body frame 10 by the bearings 11 and 11 via the bearings 12 and 12, and swings by the rotation of the eccentric shaft portion 50a. Then, the moving tooth 23 comes close to and away from the fixed tooth 21 and crushes the raw material.

前記駆動軸50の両端にはフライホイル52,53が取付けられ、一方のフライホイル53(図2の右側フライホイル)が駆動用プーリ54に形成され、この駆動用プーリ54が動力伝達手段であるVベルト55を介して通常運転用電動モータM1に連結されている。
なお、前記通常運転用電動モータM1を駆動軸50の端部に直接に連結させた直結構造にしてもよいし、通常運転用電動モータM1と駆動軸50の間に動力伝達を断続させるためのクラッチを設けてもよい。
また、通常運転用電動モータM1としては、カゴ形電動モータや巻線形電動モータを使用できるが、安価でコンパクト化が可能なカゴ形電動モータを使用する方が有利である。
Flywheels 52 and 53 are attached to both ends of the drive shaft 50, and one flywheel 53 (the right flywheel in FIG. 2) is formed on a drive pulley 54, which is a power transmission means. It is connected to an electric motor M1 for normal operation via a V belt 55.
The normal operation electric motor M1 may be directly connected to the end of the drive shaft 50, or power transmission may be interrupted between the normal operation electric motor M1 and the drive shaft 50. A clutch may be provided.
Moreover, as the electric motor M1 for normal operation , a cage type electric motor or a winding type electric motor can be used. However, it is more advantageous to use a cage type electric motor that is inexpensive and can be made compact.

また、前記ジョークラッシャー1の駆動軸50は、前記通常運転用電動モータM1に加えて流体モータとしての起動用油圧モータM2にも連結されている。
この実施例では、油圧装置(図示省略)に接続された起動用油圧モータM2を本体枠10に固定させ、この起動用油圧モータM2のモータ軸56を駆動軸50の一方のフライホイル52側の軸端に直接に連結させた直結構造になっている。
なお、前記起動用油圧モータM2をベルト伝達や歯車伝達等の間接的動力伝達手段を使用して駆動軸50に連結させてもよいし、起動用油圧モータM2と駆動軸50の間に動力伝達を断続させるためのクラッチを設けてもよい。
Further, the drive shaft 50 of the jaw crusher 1 is connected to a starting hydraulic motor M2 as a fluid motor in addition to the electric motor M1 for normal operation .
In this embodiment, the start hydraulic motor M2 connected to the hydraulic apparatus (not shown) is fixed to the body frame 10, of one of the flywheel 52 side of the drive shaft 50 of the motor shaft 56 of the starting hydraulic motor M2 It has a direct connection structure that is directly connected to the shaft end.
The starting hydraulic motor M2 may be connected to the drive shaft 50 using indirect power transmission means such as belt transmission or gear transmission, or power transmission may be performed between the starting hydraulic motor M2 and the driving shaft 50. You may provide the clutch for interrupting.

このように、ジョークラッシャー1の駆動軸50が通常運転用電動モータM1に連結されると共に、この駆動軸50は起動用油圧モータM2にも連結されており、これにより、前記駆動軸50が通常運転用電動モータM1又は起動用油圧モータM2の何れか一方、又は通常運転用電動モータM1と起動用油圧モータM2の両方からの回転力で駆動可能に形成されている。 In this way, the drive shaft 50 of the jaw crusher 1 is connected to the normal operation electric motor M1, and this drive shaft 50 is also connected to the start hydraulic motor M2, whereby the drive shaft 50 is normally connected. The driving electric motor M1 or the starting hydraulic motor M2 or the normal driving electric motor M1 and the starting hydraulic motor M2 can be driven by the rotational force.

前記通常運転用電動モータM1及び起動用油圧モータM2は制御装置51によって運転を制御される。
この制御装置51は、駆動対象となるジョークラッシャー1の起動に際しては起動用油圧モータM2により駆動軸50を駆動させ、この起動用油圧モータM2による駆動軸50の回転数を検出手段51aにより検出し、それが設定回転数に上昇したのを検出すると、起動用油圧モータM2を停止又は空転させて通常運転用電動モータM1のみにより駆動軸50を駆動させるという駆動手段の切り替え制御を行うものである。
The operation of the normal operation electric motor M1 and the start hydraulic motor M2 is controlled by the control device 51.
The control device 51, upon activation of the jaw crusher 1 to be driven drives the drive shaft 50 by the activation hydraulic motor M2, detected by the detection means 51a the rotational speed of the drive shaft 50 by the start hydraulic motor M2 When it is detected that the rotation speed has increased to the set rotational speed, the drive means switching control is performed such that the drive hydraulic motor M2 is stopped or idling and the drive shaft 50 is driven only by the normal operation electric motor M1. .

図3は本発明の駆動方法を示すフローチャート図である。
ジョークラッシャー1の起動に際しては、通常運転用電動モータM1と起動用油圧モータM2のうち、まず先に起動用油圧モータM2を起動させる(ステップS1)。
このように、起動時等の大きな負荷がかかる時には、低回転域でも大きな回転力を得られる起動用油圧モータM2を使用するため、起動を楽にさせることができるし、従来、電動モータでの起動に必要であったスターデルタやリアクトル抵抗器等の付帯設備を不要又は小さくできる。
FIG. 3 is a flowchart showing the driving method of the present invention.
When the jaw crusher 1 is activated, the activation hydraulic motor M2 is first activated among the normal operation electric motor M1 and the activation hydraulic motor M2 (step S1).
In this way, when a large load is applied at the time of startup or the like, the startup hydraulic motor M2 that can obtain a large rotational force even in a low rotation range is used, so that startup can be facilitated. Auxiliary equipment such as star delta and reactor resistors, which are necessary for this, can be eliminated or reduced.

そして、起動用油圧モータM2による起動後、駆動軸50の回転数を検出手段51aにより検出し(ステップS2)、それが設定回転数まで上昇すると、通常運転用電動モータM1の回転を開始させると共に、起動用油圧モータM2を停止又は空転させ(ステップS3)、通常運転用電動モータM1の駆動力のみで通常運転させるものである。 After the start-up by the start-up hydraulic motor M2, the rotation speed of the drive shaft 50 is detected by the detecting means 51a (step S2), and when it rises to the set speed, the rotation of the electric motor M1 for normal operation is started. Then, the starting hydraulic motor M2 is stopped or idled (step S3), and the normal operation is performed only by the driving force of the normal operation electric motor M1.

これにより、スターデルタやリアクトル抵抗器等の付帯設備を不要又は小さくでき、コストの低減、及び制御盤のコンパクト化、ランニングコストの低減、マグネットスイッチの接点寿命の長期化を図ることができる。   Thereby, ancillary facilities such as a star delta and a reactor resistor can be eliminated or reduced, and the cost can be reduced, the control panel can be made compact, the running cost can be reduced, and the contact life of the magnet switch can be extended.

なお、起動用油圧モータM2による駆動で駆動軸50が設定回転数に達したか否かを検出するための検出手段51aとして実施例ではタイマーと起動用油圧モータM2の流体圧センサを用い、起動用油圧モータM2の回転開始後、一定時間(例えば30秒、60秒)内の流体圧が所定の圧力に達しているか否かで判断させている。 Incidentally, using a fluid pressure sensor activation hydraulic motor M2 and the timer in the embodiment as the detection means 51a for detecting whether the drive shaft 50 reaches the set rotational speed in the drive by the activation hydraulic motor M2, activated After the rotation of the hydraulic motor M2 is started, the determination is made based on whether or not the fluid pressure within a certain time (for example, 30 seconds or 60 seconds) has reached a predetermined pressure.

検出手段51aとしては、タイマーと流体圧センサとの組み合わせに限らず、タイマー、流体圧センサ、流体流量センサ、駆動軸自体の回転数センサ等を単独、或いは組み合わせて使用できる。   The detection means 51a is not limited to a combination of a timer and a fluid pressure sensor, and a timer, a fluid pressure sensor, a fluid flow rate sensor, a rotation speed sensor of the drive shaft itself, or the like can be used alone or in combination.

また、ジョークラッシャー1による破砕に際し、当初、破砕室22内に原料が入った閉塞状態になっていると、起動用油圧モータであってもこれを破砕して排出させることが困難な場合がある。 Further, when crushing by the jaw crusher 1, when the crushing chamber 22 is initially in a closed state in which the raw material is contained, it may be difficult to crush and discharge even the starting hydraulic motor. .

このような閉塞状態では、起動用油圧モータM2の回転が上昇できないため、駆動軸50が設定回転数まで上昇せず、検出手段による検出ができない。
この場合は、図3のフローチャート図で示すように、起動用油圧モータM2を停止又は空転(ステップS4)させてからこの起動用油圧モータM2を逆転(Sステップ5)させて閉塞状態の解消を試みる。
In such a closed state, the rotation of the starting hydraulic motor M2 cannot be increased, so that the drive shaft 50 does not increase to the set rotational speed and cannot be detected by the detection means.
In this case, as shown in the flowchart of FIG. 3, after stopping the starting hydraulic motor M2 or idling (step S4), the starting hydraulic motor M2 is reversely rotated (S step 5) to cancel the closed state. Try.

次に、この起動用油圧モータM2の逆転状態における駆動軸50の回転数を検出し(ステップS6)、これが所定回転数(前記ステップS2での設定回転数よりも低い回転数に設定できる)に達すると、起動用油圧モータM2を停止又は空転(ステップS7)させてから起動用油圧モータM2を再び正転させる(Sステップ1)という当初の制御段階に戻す。 Next, the rotational speed of the drive shaft 50 in the reverse rotation state of the starting hydraulic motor M2 is detected (step S6), and this is set to a predetermined rotational speed (which can be set to a rotational speed lower than the rotational speed set in step S2). When it reaches, the starting hydraulic motor M2 is stopped or idling (step S7), and then the starting hydraulic motor M2 is rotated forward again (S step 1) to return to the initial control stage.

前記起動用油圧モータM2の逆転状態における駆動軸50の回転数検出(ステップS6)において、所定回転数を検出できないときは、その否検出回数をカウンターによってカウントし(ステップS8)、設定カウント(例えば5回)までは起動用油圧モータM2の正転と逆転を繰り返すことで更に閉塞状態の解消を試みる。 In the detection of the rotational speed of the drive shaft 50 in the reverse rotation state of the starting hydraulic motor M2 (step S6), when the predetermined rotational speed cannot be detected, the number of times of detection is counted by a counter (step S8), and a set count (for example, Up to 5 times, the start-up hydraulic motor M2 repeats normal rotation and reverse rotation to further attempt to eliminate the closed state.

設定カウントを越えると、これ以上の試みは無理と判断してジョークラッシャーの運転を異常停止させるもので、これにより運転異常に迅速に対応し、他の手段によって閉塞状態を解消させることができる。   When the set count is exceeded, it is determined that further attempts are impossible and the operation of the jaw crusher is abnormally stopped, so that the abnormal operation can be quickly dealt with, and the blocked state can be resolved by other means.

また、前記起動用油圧モータM2及び通常運転用電動モータM1は、それぞれを単独で駆動させることができるし、起動用油圧モータM2と通常運転用電動モータM1の両者を同時に駆動させることも可能である。
例えば、通常運転用電動モータM1による通常運転に際し、通常運転用電動モータM1の負担が大きくなったような場合、通常運転用電動モータM1を駆動させながら起動用油圧モータM2を駆動させて通常運転用電動モータM1の駆動を起動用油圧モータM2で補助させることもできる。
The start hydraulic motor M2 and the normal operation electric motor M1 can be driven independently, or both the start hydraulic motor M2 and the normal operation electric motor M1 can be driven simultaneously. is there.
For example, when the normal operation by the normal operation for the electric motor M1, if the burden of normal operation for the electric motor M1 as increased, by driving the activated hydraulic motor M2 while driving the normal operation electric motor M1 normal operation The driving of the electric motor M1 can be assisted by the starting hydraulic motor M2.

なお、前記スイングジョー24の上部は前記したように駆動軸50の偏心軸部50aに取付けられ、また、スイングジョー24の下端部はトッグルプレート60を介して本体枠10に支持されている。   The upper portion of the swing jaw 24 is attached to the eccentric shaft portion 50a of the drive shaft 50 as described above, and the lower end portion of the swing jaw 24 is supported by the main body frame 10 via the toggle plate 60.

このトッグルプレート60の位置を前後方向に調節することにより、スイングジョー24に取付けた動歯23の位置を調整し、その動歯23と固定歯21との間の破砕室22の間隔を設定することができるようになっている。
このトッグルプレート60の位置調節に起動用油圧モータM2の油圧装置を利用できるし、その他の油圧機器用のアクチュエータ(例えば、油圧シリンダ等)の駆動源として起動用油圧モータM2の油圧装置を利用できる。
By adjusting the position of the toggle plate 60 in the front-rear direction, the position of the moving tooth 23 attached to the swing jaw 24 is adjusted, and the interval of the crushing chamber 22 between the moving tooth 23 and the fixed tooth 21 is set. Be able to.
The hydraulic device of the starting hydraulic motor M2 can be used to adjust the position of the toggle plate 60, and the hydraulic device of the starting hydraulic motor M2 can be used as a drive source for actuators (for example, hydraulic cylinders) for other hydraulic equipment. .

実施例では、駆動対象として定置式のジョークラッシャーを例に挙げたが、自走式ジョークラッシャーに本発明の駆動装置及び駆動方法を適用できる。
この場合、走行装置(クローラ走行装置又は車輪走行装置)を備えた車体に破砕機としてのジョークラッシャーを搭載させるもので、ジョークラッシャーの駆動軸50に通常運転用電動モータM1及び起動用油圧モータM2を連結させると共に、この通常運転用電動モータM1及び起動用油圧モータM2を制御装置51によって制御する構成は前記定置式と同様である。
In the embodiment, a stationary jaw crusher is taken as an example of a driving target, but the driving device and the driving method of the present invention can be applied to a self-propelled jaw crusher .
In this case, a jaw crusher as a crusher is mounted on a vehicle body provided with a traveling device (crawler traveling device or wheel traveling device), and an electric motor M1 for normal operation and a starting hydraulic motor M2 are provided on a drive shaft 50 of the jaw crusher. with linking the configuration for controlling the normal operation for the electric motor M1 and the start hydraulic motor M2 by the control device 51 is the same as the stationary.

産業機器としての破砕機であるジョークラッシャーを対象とした駆動装置の実施例を示す側面図Side view showing an embodiment of a drive device for a jaw crusher as a crusher as an industrial equipment その駆動装置を示す断面図Sectional view showing the drive device 本発明の駆動方法を示すフローチャート図The flowchart figure which shows the drive method of this invention

1 ジョークラッシャー(破砕機)
10 本体枠
11 軸受
12 軸受
21 固定歯
22 破砕室
23 動歯
24 スイングジョー
50 駆動軸
50a 偏心軸部
51 制御装置
51a 検出手段
52 フライホイル
53 フライホイル
54 駆動用プーリ
55 Vベルト
56 モータ軸
60 トッグルプレート
M1 通常運転用電動モータ
M2 起動用油圧モータ
1 Jaw crusher (crusher)
DESCRIPTION OF SYMBOLS 10 Main body frame 11 Bearing 12 Bearing 21 Fixed tooth 22 Crushing chamber 23 Dynamic tooth 24 Swing jaw 50 Drive shaft 50a Eccentric shaft part 51 Control device 51a Detection means 52 Flywheel 53 Flywheel 54 Driving pulley 55 V belt 56 Motor shaft 60 Toggle Plate M1 Electric motor for normal operation M2 Hydraulic motor for starting

Claims (2)

ジョークラッシャーを対象とした駆動装置(5)であって、
駆動軸(50)に連結された通常運転用電動モータ及び起動用油圧モータ(M2)と、
起動時は起動用油圧モータ(M2)により駆動軸(50)を駆動させ、この駆動軸(50)が設定回転数に上昇したのを検出すると、起動用油圧モータ(M2)から通常運転用電動モータ(M1)に切り替えて駆動軸(50)を駆動させるように制御する制御装置(51)と、を備え、
前記制御装置(51)は、駆動軸(50)が設定回転数に上昇したのを検出できないときは起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を逆転させ、その逆転状態における駆動軸(50)の回転数を検出し、これが所定回転数に上昇したのを検出すると起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を再び正転させ、かつ前記起動用油圧モータ(M2)の逆転状態における駆動軸(50)が所定回転数に上昇したのを検出できないときはその否検出回数をカウンターによってカウントし、設定カウント数までは起動用油圧モータ(M2)の正転と逆転を繰り返すように制御することを特徴とする駆動装置。
A drive device (5) for a jaw crusher,
A normal operation electric motor and a starting hydraulic motor (M2) connected to the drive shaft (50);
At the time of start-up, the drive shaft (50) is driven by the start-up hydraulic motor (M2), and when it is detected that the drive shaft (50) has risen to the set rotational speed, the start-up hydraulic motor (M2) is driven by the electric motor for normal operation. A control device (51) that controls to drive the drive shaft (50) by switching to the motor (M1),
The control device (51) is reversed the hydraulic motor (M2) for starting after stopping or idling of the hydraulic motor (M2) for starting when the drive shaft (50) is unable to detect that increased to the set rotational speed Then, the rotational speed of the drive shaft (50) in the reverse rotation state is detected, and when it is detected that the rotational speed has increased to a predetermined rotational speed, the starting hydraulic motor (M2) is stopped or idling and then the starting hydraulic motor (M2) is turned off. When it is not possible to detect that the drive shaft (50) in the reverse rotation state of the start-up hydraulic motor (M2) has increased to a predetermined number of revolutions, the number of times of detection is counted by a counter, and the set count number is reached. Is a drive device that controls to repeat normal rotation and reverse rotation of the starting hydraulic motor (M2).
ジョークラッシャーを対象とした駆動方法であって、
駆動軸(50)に通常運転用電動モータ(M1)及び起動用油圧モータ(M2)を連結させ、
起動時は起動用油圧モータ(M2)により駆動軸(50)を駆動させ、この駆動軸(50)が設定回転数に上昇したのを検出すると、起動用油圧モータ(M2)から通常運転用電動モータ(M1)に切り替えて駆動軸(50)を駆動させるように制御装置(51)で制御させ、
前記制御装置(51)は、駆動軸(50)が設定回転数に上昇したのを検出できないときは起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を逆転させ、その逆転状態における駆動軸(50)の回転数を検出し、これが所定回転数に上昇したのを検出すると起動用油圧モータ(M2)を停止又は空転させてから起動用油圧モータ(M2)を再び正転させ、
かつ前記起動用油圧モータ(M2)の逆転状態における駆動軸(50)が所定回転数に上昇したのを検出できないときはその否検出回数をカウンターによってカウントし、設定カウント数までは起動用油圧モータ(M2)の正転と逆転を繰り返すように制御させることを特徴とする駆動方法。
A drive method for jaw crusher,
An electric motor (M1) for normal operation and a hydraulic motor for start (M2) are connected to the drive shaft (50),
At the time of start-up, the drive shaft (50) is driven by the start-up hydraulic motor (M2), and when it is detected that the drive shaft (50) has risen to the set rotational speed, the start-up hydraulic motor (M2) is driven by the electric motor for normal operation. The controller (51) controls the motor (M1) so as to drive the drive shaft (50) by switching to the motor (M1),
The control device (51) is reversed the hydraulic motor (M2) for starting after stopping or idling of the hydraulic motor (M2) for starting when the drive shaft (50) is unable to detect that increased to the set rotational speed detects the rotational speed of the drive shaft (50) in its reverse rotation state, which is a hydraulic motor (M2) for starting after stopping or idling of the hydraulic motor (M2) for startup and detects that the increased to a predetermined rotational speed Rotate forward again,
In addition, when it is not possible to detect that the drive shaft (50) in the reverse rotation state of the start hydraulic motor (M2) has increased to a predetermined number of rotations, the number of times of detection is counted by a counter, and the start hydraulic motor up to the set count number (M2) A driving method characterized by controlling to repeat normal rotation and reverse rotation.
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