JP2000136739A5

JP2000136739A5 -

Info

Publication number: JP2000136739A5
Application number: JP1999238421A
Authority: JP
Filing date: 1999-08-25
Publication date: 2004-08-26
Anticipated expiration: 2019-08-25

Description

【発明の名称】自走式破砕機のエンジン制御装置Patent application title: Engine control device for a self-propelled crusher

【０００１】
【発明の属する技術分野】
本発明は、岩石・建設廃材等を破砕する自走式破砕機のエンジン制御装置に関し、特に、破砕装置等の各機器が動作停止する待機状態でのエンジン回転数を低下させることにより、エネルギロスの低減、騒音の低減、及び排気ガス量の低減を図れる自走式破砕機のエンジン制御装置及び自走式破砕機に関する。[0001]
Field of the Invention
The present invention relates to an engine control device for a self-propelled crusher that crush rocks, construction wastes, etc. In particular, energy loss is achieved by reducing the engine speed in a standby state in which each device such as a crusher stops operating. reduction, noise reduction, and an engine control device and the self-propelled crushing machine of the self-propelled crushing machine attained the reduction of the exhaust gas amount.

【０００２】
【従来の技術】
自走式破砕機は、被破砕物である建設現場で発生する大小さまざまな岩石・建設廃材等（以下適宜、ガラという）を、運搬する前にその現場で所定の大きさに破砕することにより、工事の円滑化やコスト削減を図るものである。
例えば、特開平８−１９６９３３号公報記載の自走式破砕機では、油圧ショベル等によって自走式破砕機上部のホッパに投入されたガラが、ホッパ下方のフィーダによってジョークラッシャ等の破砕装置へ導かれ、この破砕装置で所定の大きさに破砕される。破砕されたガラは、ジョークラッシャ下部の空間からジョークラッシャ下方のコンベア上に落下し、このコンベアで運搬される。この運搬の途中で、コンベア上方に配置された磁選機によって例えばコンクリートのガラに混入している鉄筋片等を吸着して取り除き、大きさがほぼ揃った破砕物として最終的に自走式破砕機の後部から搬出される。
上記したフィーダ、破砕装置、コンベア、及び磁選機等の各機器は、対応する油圧アクチュエータ、すなわちフィーダ用油圧モータ、破砕用油圧モータ、コンベア用油圧モータ、及び磁選機用油圧モータ等が、油圧ポンプから吐出される圧油で駆動されることによって作動する。この油圧ポンプは、自走式破砕機に搭載されたエンジンによって駆動され、エンジンの回転数によってその圧油の吐出量が変化するようになっている。[0002]
[Prior Art]
A self-propelled crusher is shredded to a predetermined size at the work site before transporting it, which is a large and small rock, construction waste material, etc. (hereinafter referred to as “gala” as appropriate) generated at the construction site which is a material to be crushed. , To facilitate construction work and reduce costs.
For example, in the self-propelled crusher disclosed in JP-A-8-196933, the gutter introduced into the hopper above the self-propelled crusher by a hydraulic shovel or the like is guided to the crusher such as the jaw crusher by the feeder below the hopper. It is crushed to a predetermined size by this crushing apparatus. The crushed glass falls from the space under the jaw crusher onto the conveyor below the jaw crusher and is transported by the conveyor. During this transportation, a magnetic separator disposed above the conveyer adsorbs and removes, for example, rebar pieces etc. mixed in concrete shells, and finally a self-propelled crusher as a crushed material of substantially uniform size Carried out from the rear of the
The above-described devices such as the feeder, crushing apparatus, conveyor, magnetic separator, etc. are corresponding hydraulic actuators, that is, hydraulic motors for the feeder, hydraulic motors for crushing, hydraulic motors for the conveyor, hydraulic motors for the magnetic separator, etc. It operates by being driven by the pressure oil discharged from. The hydraulic pump is driven by an engine mounted on a self-propelled crusher, and the discharge amount of the hydraulic oil changes with the number of revolutions of the engine.

【０００４】
【発明が解決しようとする課題】
上記従来技術には、以下のような課題が存在する。
自走式破砕機による破砕作業中には、油圧ポンプからの圧油が上記フィーダ用油圧モータ、破砕用油圧モータ、コンベア用油圧モータ、及び磁選機用油圧モータ等に供給され、フィーダ、破砕装置、コンベア、及び磁選機等の各機器が動作する。このとき、各油圧アクチュエータにはそれぞれ負荷が加わるが、特に、破砕装置を駆動する破砕用油圧モータには、最も大きな負荷が加わる。
上記従来技術では、エンジン回転数がスロットル装置９１のダイヤル操作量に応じて一意的に設定される。そのため、破砕作業中に破砕用油圧モータに加わる最大負荷に応じた圧油を油圧ポンプが吐出できるように、エンジン回転数を比較的高めに設定し、破砕作業中はその高めの回転数に設定値を固定して使用せざるを得ない。[0004]
[Problems to be solved by the invention]
The following problems exist in the above-mentioned prior art.
During crushing work by the self-propelled crusher, pressure oil from the hydraulic pump is supplied to the above-mentioned feeder hydraulic motor, hydraulic motor for crushing, hydraulic motor for conveyor, hydraulic motor for magnetic separator, etc., feeder, crushing device The respective devices such as the conveyor, the magnetic separator and the like operate. At this time, loads are applied to the respective hydraulic actuators, but in particular, the largest load is applied to the crushing hydraulic motor which drives the crushing apparatus.
In the above-mentioned prior art, the engine speed is uniquely set in accordance with the dial operation amount of the throttle device 91. Therefore, the engine rotational speed is set relatively high so that the hydraulic pump can discharge the pressure oil according to the maximum load applied to the crushing hydraulic motor during the crushing operation, and is set to the high rotational speed during the crushing operation You can not but use fixed values.

【０００５】
一方、自走式破砕機による破砕作業は、通常、継続的なものではなく、油圧ショベルで所定量のガラを投入して破砕した後、次のガラを投入するまでの間、ある程度の待機時間が存在する場合がある。この間は、各機器にガラがほとんど存在しない無負荷状態となる。このとき自走式破砕機では油圧ショベルとは異なり、後述の図６のように各機器に対する操作は駆動・非駆動の切換等の簡単な操作のみであることが多いこと、またそのため自走式破砕機専任のオペレータが常時配置されるとは限られないこと等により、待機時間の間も各機器はそれまでの破砕時と同じ駆動を維持しつつ空運転状態で待機するのが通常である。したがって、上記のようにエンジン回転数を比較的高めに設定すると、この各機器が無負荷である空運転状態の間もエンジンが高い回転数で無駄に回転することとなり、エネルギロスとなるという問題がある。
また、待機時間には、フィーダ、破砕装置、コンベア、及び磁選機等の各機器は無負荷となるためこれらからの騒音は低減されることとなるが、このときもエンジンは高回転数で回転し続けているため、その騒音は低減されない。特に、近年、自走式破砕機を用いてリサイクルを市街地でも行おうという試みがあるが、待機時間の騒音が大きいと、市街地、特に住宅地などにおいて自走式破砕機を設置し稼動させるのは困難となる。
さらに、エンジンからの排気ガスは、高回転数のときには特にその量が多くなり、また騒音も増大するため、これらの面からも好ましくなかった。[0005]
On the other hand, crushing work by a self-propelled crusher is not usually continuous, and after waiting for a predetermined amount of shells to be charged with a hydraulic shovel and crushing, a certain waiting time is required until the next shells are charged. May exist. During this time, each apparatus is in a no-load state where almost no glass is present. At this time, unlike a hydraulic shovel in a self-propelled crusher, as shown in FIG. 6 described later, the operation to each device is often only a simple operation such as switching between driving and non-driving, and hence self-propelled It is normal for each device to stand by in the idle operation state while maintaining the same drive as the time of the previous crushing even during the waiting time because the crusher dedicated operator is not always arranged etc. . Therefore, if the engine speed is set relatively high as described above, the engine is unnecessarily rotated at a high speed even during idle operation with no load on each device, resulting in an energy loss. There is.
In addition, since the devices such as the feeder, shredding device, conveyor, magnetic separator, etc. are unloaded during the standby time, the noise from these will be reduced, but also at this time the engine rotates at a high rotational speed. And the noise is not reduced. In particular, in recent years, there has been an attempt to recycle even in urban areas using self-propelled crushers, but when the noise during standby time is large, self-propelled crushers are installed and operated in urban areas, especially in residential areas. Is difficult.
Furthermore, the exhaust gas from the engine is not preferable in these respects, because the amount of exhaust gas increases particularly at high engine speeds and the noise also increases.

【０００６】
本発明は、上記従来技術の問題点に鑑みてなされたものであり、その目的は、破砕装置等の各機器が無負荷となる待機時間でのエンジン回転数を低下させることにより、エネルギロスの低減、騒音の低減、及び排気ガス量の低減を図れる自走式破砕機のエンジン制御装置及び自走式破砕機を提供することにある。[0006]
The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to reduce the energy loss by reducing the number of engine revolutions in a standby time during which each device such as a crushing apparatus is unloaded. reduced to provide a reduction in noise, and the engine control device and the self-propelled crushing machine of the self-propelled crushing machine attained the reduction of the exhaust gas amount.

【０００７】
（１）上記目的を達成するために、本発明は、破砕装置及びこの破砕装置による破砕作業に関連する作業を行う補助機械を含む複数の機器と、これら複数の機器をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段とを有する自走式破砕機に設けられ、前記エンジンの回転数を制御する自走式破砕機のエンジン制御装置において、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか、若しくは前記所定の機器のうち動作状態にあるものがすべて被破砕物に対し前記破砕又は破砕作業に関連する作業を行っていない空運転状態であることを検出する第１検出手段と、この第１検出手段の検出値に基づいて前記エンジンの回転数を予め設定したアイドリング回転数に制御する第１制御手段とを備える。[0007]
(1) To achieve the above object, the present invention includes a plurality of devices including an auxiliary machine that performs tasks related to crushing operation by the crushing device and the crushing device, a plurality of driving the plurality of the devices respectively A self-propelled vehicle comprising a hydraulic actuator, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, an engine for driving the hydraulic pump, and a plurality of operation means for operating the plurality of hydraulic actuators. In the engine control device of a self-propelled crusher provided in a crusher and controlling the number of revolutions of the engine , a predetermined device including the crusher among the plurality of devices is in a stopped state, or An idle operation state in which all of the predetermined devices in operation state are not performing the work related to the crushing or the crushing work on the material to be crushed And a first control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on the detection value of the first detection means.

【０００８】
ホッパに投入された被破砕物は、破砕装置で所定の大きさに破砕された後、補助機械によって所定の作業が施される。この一連の作業は、通常、継続的なものではなく、ホッパに所定量の被破砕物を投入して破砕した後、次のガラを投入するまでの間、ある程度の待機時間が存在する。このような待機時間となると、破砕装置や補助機械等の複数の機器は動作状態のままそれら機器中に被破砕物が存在しない空運転状態となるため、それら複数の機器のうち動作状態の所定の機器すべてが空運転状態であることが第１検出手段で検出される。これにより、第１制御手段が、例えば第１制限手段で燃料噴射手段からの燃料噴射量を第１所定値に制限することによって、エンジンの回転数を予め設定したアイドリング回転数に制御するので、エンジンの回転数が低く抑えられる。なお、オペレータによって所定の機器がすべての停止状態とされた場合にも、それらの停止状態が第１検出手段で検出されるため、同様にエンジンの回転数が低く抑えられる。したがって、エンジン回転数が回転数設定手段の設定に応じた値に維持される従来技術よりも、エネルギロスの低減、騒音の低減、及び排気ガス量の低減を図ることができる。[0008]
The material to be crushed introduced into the hopper is crushed to a predetermined size by a crushing apparatus and then subjected to a predetermined operation by an auxiliary machine. This series of operations is usually not continuous, and after a predetermined amount of material to be crushed is charged into the hopper and crushed, a certain waiting time exists until the next piece of glass is charged. When such a standby time is reached, a plurality of devices such as the crushing apparatus and the auxiliary machine remain in an operating state and are in an idle operation state in which no object to be crushed is present in the devices. The first detection means detects that all the devices are idle. Thereby, the first control means controls the number of revolutions of the engine to a preset idling number of revolutions, for example, by limiting the fuel injection amount from the fuel injection means to the first predetermined value by the first limiting means. The engine speed can be kept low. Incidentally, even when the predetermined devices are all stopped by the operator, since the stopped state is detected by the first detection means, the number of revolutions of the engine is similarly suppressed low. Therefore, energy loss can be reduced, noise can be reduced, and the amount of exhaust gas can be reduced, as compared with the prior art in which the engine speed is maintained at a value according to the setting of the speed setting means.

【０００９】
（２）上記目的を達成するために、また本発明は、ホッパで受け入れた被破砕物を破砕する破砕装置、被破砕物を前記破砕装置へ供給するフィーダ、及び前記破砕装置で破砕された被破砕物を運搬するコンベアを含む複数の機器と、これら複数の機器をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段とを有する自走式破砕機に設けられ、前記エンジンの回転数を制御する自走式破砕機のエンジン制御装置において、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか、若しくは前記所定の機器のうち動作状態にあるものがすべて被破砕物に対し前記破砕又は破砕作業に関連する作業を行っていない空運転状態であることを検出する第１検出手段と、この第１検出手段の検出値に基づいて前記エンジンの回転数を予め設定したアイドリング回転数に制御する第１制御手段とを備える。[0009]
(2) In order to achieve the above object, according to the present invention, there is provided a crushing device for crushing a material to be crushed received by a hopper, a feeder for supplying the material to be crushed to the crushing device, and a material to be crushed with the crushing device. A plurality of devices including a conveyor for transporting crushed material, a plurality of hydraulic actuators for driving the plurality of devices, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, and the hydraulic pump In a self-propelled crusher provided in a self-propelled crusher having a driven engine and a plurality of operation means for respectively operating the plurality of hydraulic actuators, the engine control device of the self-propelled crusher controlling the number of revolutions of the engine Of the plurality of devices, all of the predetermined devices including the crushing device are in the stopped state, or among the predetermined devices are also in the operating state. Rotation of the engine on the basis of a first detection means for detecting that is empty operating state not performing tasks related to the crushing or crushing work for all objects to be crushed, the value detected by the first detection means And a first control means for controlling the number to a preset idling speed.

【００１０】
（３）上記(１)又は(２)において、好ましくは、前記エンジンの回転数を設定する回転数設定手段を有し、前記第１制御手段は、前記第１検出手段で前記所定の機器がすべて停止状態であるか若しくは前記所定の機器のうち動作状態にあるものがすべて前記空運転状態であることが検出された第１の場合には、前記回転数設定手段の設定に関係なく前記エンジンの回転数を前記アイドリング回転数に制限し、前記第１の場合でない第２の場合には、前記エンジンの回転数を前記回転数設定手段の設定に応じた回転数とする第１制限手段を備えている。[0010]
(3) In the above (1) or (2), preferably, have a rotational speed setting means for setting a revolution speed of the engine, before Symbol first control means, said prescribed device by said first detection means In the first case where it is detected that all of the predetermined devices are in the idle state or all of the predetermined devices are in the idle state, regardless of the setting of the rotational speed setting means. First limiting means for limiting the number of revolutions of the engine to the idling number of revolutions, and setting the number of revolutions of the engine according to the setting of the number of revolutions setting means in the second case, which is not the first case Is equipped.

【００１１】
（４）上記(３)において、前記エンジンへ燃料を噴射する燃料噴射手段を有し、前記第１制限手段は、前記第１の場合には、前記回転数設定手段の設定に関係なく前記燃料噴射手段からの燃料噴射量を前記アイドリング回転数に対応した第１所定値に制限し、前記第２の場合には前記燃料噴射手段からの燃料噴射量を前記回転数設定手段の設定に応じた値とする第１燃料噴射制御手段を備えている。[0011]
(4) In the above (3), it has a fuel injection means for injecting fuel into the engine, before Symbol first limiting means, the first case, the regardless of the setting of the rotational speed setting means The fuel injection amount from the fuel injection means is limited to a first predetermined value corresponding to the idling rotation speed, and in the second case, the fuel injection amount from the fuel injection means is set according to the setting of the rotation speed setting means The first fuel injection control means is set to the following value.

【００１２】
（５）上記(１)又は(２)において、また好ましくは、前記第１検出手段は、前記複数の機器のうち前記破砕装置を含む所定の機器が、動作状態にあるか停止状態にあるかを検出する第１動作状態検出手段と、この第１動作状態検出手段で前記所定の機器の動作状態が検出された場合に、該所定の機器が、被破砕物に対し前記破砕又は破砕作業に関連する作業を行っている実運転状態にあるか前記空運転状態にあるかを検出する第１運転状態検出手段とを含んでいる。[0012]
(5) In the above (1) or (2), preferably, whether the first detection means is a predetermined one of the plurality of devices including the crushing device in an operating state or in a stopped state First operation state detection means for detecting the first operation state detection means, and when the operation state of the predetermined device is detected by the first operation state detection means, the predetermined device performs the shredding or crushing operation on the object to be crushed And a first operating state detecting means for detecting whether the vehicle is in an actual operating state where the related work is being performed or in an idle state.

【００１３】
（６）上記目的を達成するために、また本発明は、破砕装置による破砕作業に関連する作業を行う補助機械を含む複数の機器と、走行手段を備えた走行体と、前記複数の機器及び前記走行体をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段とを有する自走式破砕機に設けられ、前記エンジンの回転数を制御する自走式破砕機のエンジン制御装置において、前記走行手段が停止状態であり、かつ、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか若しくは前記所定の機器のうち動作状態にあるものがすべて被破砕物に対し前記破砕又は破砕作業に関連する作業を行っていない空運転状態であることを検出する第２検出手段と、この第２検出手段の検出値に基づいて前記エンジンの回転数を予め設定したアイドリング回転数に制御する第２制御手段とを備える。[0013]
(6) In order to achieve the above object, also the present invention includes a plurality of devices including an auxiliary machine that performs tasks related to crushing operation by the crushing device, and a traveling body provided with a traveling means, said plurality of devices A plurality of hydraulic actuators for driving the traveling body, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, an engine for driving the hydraulic pump, and the plurality of hydraulic actuators In an engine control device of a self-propelled crusher which is provided in a self-propelled crusher having a plurality of operating means for controlling the number of revolutions of the engine , the traveling means is in a stopped state, and the plurality of a predetermined device is intended for all objects to be crushed in the operating state of all of or or the predetermined a stopped state device including the crushing device of the equipment A second detection means for detecting that the crushing or the work related to the crushing operation is not being performed, and idling in which the number of revolutions of the engine is preset based on the detection value of the second detection means And second control means for controlling the rotational speed.

【００１４】
自走式破砕機の場合、破砕現場内を走行手段で自走する場合がある。この場合、自走式破砕機に備えられた複数の機器がすべて停止状態であったとしても、走行手段は動作状態にあることから、所定の走行速度を得るためにもエンジン回転数を低下させるのは好ましくない。そこで、本発明では、走行手段が停止状態であって、かつ所定の機器がすべて停止状態であるか空運転状態であることを第２検出手段で検出し、この検出結果に応じて第２制御手段でエンジン回転数をアイドリング回転数に制御する。これにより、走行時の良好な走行速度を確保することができる。[0014]
In the case of a self-propelled crusher, there are cases where the traveling means self-propelled in the crushing site. In this case, even if all of the plurality of devices provided in the self-propelled crusher are in the stopped state, the traveling means is in the operating state, so the engine rotational speed is reduced also to obtain a predetermined traveling speed. Is not desirable. Therefore, in the present invention, the second detection means detects that the traveling means is in the stop state and all the predetermined devices are in the stop state or in the idle state, and the second control is performed according to the detection result. The engine speed is controlled to the idling speed by means. This makes it possible to secure a good running speed at the time of running.

【００１５】
（７）上記(６)において、好ましくは、前記エンジンの回転数を設定する回転数設定手段を有し、前記第２制御手段は、前記第２検出手段で、前記走行手段が停止状態であり、かつ、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか若しくは前記所定の機器のうち動作状態にあるものがすべて前記空運転状態であることが検出された第３の場合には、前記回転数設定手段の設定に関係なく前記エンジンの回転数を前記アイドリング回転数に制限し、前記第３の場合でない第４の場合には、前記エンジンの回転数を前記回転数設定手段の設定に応じた回転数とする第２制限手段を備えている。[0015]
(7) In the above (6), preferably, organic, and before Symbol second control means the rotational speed setting means for setting a revolution speed of the engine, in the second detecting means, the traveling means is in a stopped state And it is detected that all the predetermined devices including the crushing device among the plurality of devices are in the stopped state or all the devices in the operating state among the predetermined devices are in the idle state In the third case, regardless of the setting of the rotational speed setting means, the rotational speed of the engine is limited to the idling rotational speed, and in the fourth case not in the third case, the rotational speed of the engine is set. A second limiting means is provided for setting the number of revolutions according to the setting of the number of revolutions setting means.

【００１６】
（８）上記(７)において、さらに好ましくは、前記エンジンへ燃料を噴射する燃料噴射手段を有し、前記第２制限手段は、前記第３の場合には、前記回転数設定手段の設定に関係なく前記燃料噴射手段からの燃料噴射量を前記アイドリング回転数に対応した第１所定値に制限し、前記第４の場合には前記燃料噴射手段からの燃料噴射量を前記回転数設定手段の設定に応じた値とする第２燃料噴射制御手段を備えている。[0016]
(8) In the above (7), more preferably, have a fuel injection means for injecting fuel into the engine, the second limiting means, in the case of the third, the setting of the rotational speed setting means Regardless, the fuel injection amount from the fuel injection means is limited to a first predetermined value corresponding to the idling speed, and in the fourth case, the fuel injection amount from the fuel injection means is A second fuel injection control means is provided which has a value according to the setting.

【００１７】
（９）上記(６)において、また好ましくは、前記第２検出手段は、前記複数の機器のうち前記破砕装置を含む所定の機器及び前記走行手段が、動作状態にあるか停止状態にあるかを検出する第２動作状態検出手段と、この第２動作状態検出手段で前記所定の機器の動作状態が検出された場合に、該所定の機器が、被破砕物に対し前記破砕又は破砕作業に関連する作業を行っている実運転状態にあるか前記空運転状態にあるかを検出する第２運転状態検出手段とを含んでいる。[0017]
(9) In the above (6), preferably, whether the second detection means is a predetermined device including the crushing device among the plurality of devices and the traveling means are in the operating state or in the stopped state. When the operation state of the predetermined device is detected by the second operation state detection means for detecting the second operation state detection means, the predetermined device performs the shredding or crushing operation on the object to be crushed And second operation state detection means for detecting whether the vehicle is in an actual operation state in which the related work is being performed or in the idle state.

【００３５】
第１又は第２制限手段によって燃料噴射手段からの燃料噴射量が第１の所定値に制限されているオートアイドル状態時にホッパへの岩石・建設廃材等の投入を再開する場合、そのホッパへの投入量が少量であったとしても、例えばフィーダや破砕装置へ被破砕物がこぼれ落ち導入される場合があるため、破砕装置を含む各機器は直ちに動作速度を通常速度に復帰させるのが生産効率上好ましい場合がある。しかしながら、上記のように投入量が少量の場合には、第１又は第２検出手段で引き続き空運転状態であるとして検出される場合があり、この場合、前記の燃料噴射量がそのまま制限されてエンジン回転数はアイドリング回転数のままとなるため、破砕装置を含む各機器はエンジンのアイドリング回転数に応じた低い動作速度のままであり、生産効率が低下する。[0035]
When resuming the injection of rocks, construction wastes and the like to the hopper in the auto idle state in which the fuel injection amount from the fuel injection means is limited to the first predetermined value by the first or second limiting means, Even if the input amount is small, for example, the material to be crushed may be dropped and introduced into the feeder or crushing device, so that each device including the crushing device immediately returns the operation speed to the normal speed, from the viewpoint of production efficiency. It may be preferable. However, as described above, when the input amount is small, the first or second detection means may continue to detect the idle state, and in this case, the fuel injection amount is limited as it is. Since the engine rotational speed remains at the idling rotational speed, each device including the crushing device remains at the low operating speed according to the idling rotational speed of the engine, and the production efficiency is lowered.

【００３７】
（２２）上記(２ ) において、また好ましくは、前記エンジンの回転数を設定する回転数設定手段と、前記エンジンへ燃料を噴射する燃料噴射手段とを有し、前記第１制御手段は、前記第１検出手段で前記所定の機器がすべて停止状態であるか若しくは前記所定の機器のうち動作状態にあるものがすべて前記空運転状態であることが検出された第１の場合には、前記回転数設定手段の設定に関係なく前記エンジンの回転数を前記アイドリング回転数に制限し、前記第１の場合でない第２の場合には、前記エンジンの回転数を前記回転数設定手段の設定に応じた回転数とする第１制限手段を備え、この第１制限手段は、前記第１の場合には、前記回転数設定手段の設定に関係なく前記燃料噴射手段からの燃料噴射量を前記アイドリング回転数に対応した第１所定値に制限し、前記第２の場合には前記燃料噴射手段からの燃料噴射量を前記回転数設定手段の設定に応じた値とする第１燃料噴射制御手段を備え、前記第２の場合において前記燃料噴射手段からの燃料噴射量を前記回転数設定手段の設定に応じた値にしているときに前記第１の場合となったら、前記燃料噴射手段からの燃料噴射量を前記第１所定値まで減少させるとともに、前記フィーダを停止又は減速させる。[0037]
(22) In the above (2), and preferably, the rotational speed setting means for setting a revolution speed of said engine, and a fuel injection means for injecting fuel into the engine, said first control means, said In the first case where it is detected by the first detection means that all of the predetermined devices are in the stopped state or all of the predetermined devices in the operating state are in the idle state, The engine speed is limited to the idling speed regardless of the setting of the number setting means, and in the second case which is not the first case, the engine speed is set according to the setting of the speed setting means In the first case, the first restriction means sets the fuel injection amount from the fuel injection means to the idling rotation regardless of the setting of the rotation speed setting means. Number to pair In the second case, the fuel injection amount from the fuel injection means is set to a value according to the setting of the rotational speed setting means, and the first fuel injection control means is provided. In the second case, when the fuel injection amount from the fuel injection means is set to a value according to the setting of the rotational speed setting means, the fuel injection amount from the fuel injection means is set to the first case. While decreasing to said 1st predetermined value, the said feeder is stopped or decelerated.

【００４１】
（２５）上記(１)，(２)，(６)のいずれか１つにおいて、好ましくは、前記第１又は第２検出手段は、前記被破砕物の状況を、光線、電磁波、及び超音波のうち少なくとも１つを用いて検出する波動的検出手段を含む。[0041]
(25) In any one of the above (1), (2), and (6), preferably, the first or second detection unit is configured to transmit a light beam, an electromagnetic wave, and an ultrasonic wave to the condition of the object to be crushed. Wave dynamic detection means for detecting using at least one of

【００４２】
（２６）上記(２ )において、また好ましくは、前記第１検出手段は、前記被破砕物の状況を、光線、電磁波、及び超音波のうち少なくとも１つを用いて検出する波動的検出手段を含み、前記波動的検出手段は、前記ホッパ、フィーダ、及び破砕装置のうち少なくとも１つにおける前記被破砕物の滞留状況又は流動状況を検出する。[0042]
In (26) above (2), and preferably, the first detecting means, the status of the objects to be crushed, light, electromagnetic wave, and the wave detection means for detecting by using at least one of the ultrasonic The wave dynamic detection means detects a stagnation condition or a flow condition of the material to be crushed in at least one of the hopper, the feeder, and the crushing apparatus.

【００４３】
これにより、例えばグリズリフィーダにおける被破砕物の滞留状況を検出する場合であっても、その実運転状態及び空運転状態を高精度に検出することができる。[0043]
Thereby, even in the case where, for example , the stagnation condition of the object to be crushed in the grizzly feeder is detected, the actual operation condition and the idle operation condition can be detected with high accuracy.

【００４４】
（２７）上記(２ )において、また好ましくは、前記第１検出手段は、前記被破砕物の状況を、光線、電磁波、及び超音波のうち少なくとも１つを用いて検出する波動的検出手段を含み、前記波動的検出手段は、前記ホッパへ前記被破砕物を投入する作業具の動作状況を検出する。[0044]
(27) In the above ( 2 ) , preferably, the first detection means is a wave dynamic detection means for detecting the condition of the object to be crushed using at least one of a light beam, an electromagnetic wave and an ultrasonic wave. The wave dynamic detection means detects an operation state of a work tool for charging the object to be crushed into the hopper.

【００４５】
（２８）上記目的を達成するために、また本発明は、破砕装置、被破砕物を前記破砕装置へ供給するフィーダ、及び前記破砕装置で破砕された被破砕物を運搬するコンベアを含む複数の機器と、走行手段を備えた走行体と、これら複数の機器をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段とを有する自走式破砕機に設けられ、前記エンジンの回転数を制御する自走式破砕機のエンジン制御装置において、前記エンジンの回転数を設定する回転数設定手段と、前記エンジンへ燃料を噴射する燃料噴射手段と、前記複数の機器のうち前記破砕装置を含む所定の機器及び前記走行手段にそれぞれ対応する前記操作手段の操作状態を検出することにより、前記所定の機器及び走行手段が動作状態にあるか停止状態にあるかを検出する操作状態検出手段と、この操作状態検出手段で前記所定の機器の動作状態が検出された場合に、前記所定の機器に対応する前記油圧アクチュエータの負荷圧力を検出することにより、該所定の機器が、被破砕物に対し前記破砕又は破砕作業に関連する作業を行っている実運転状態にあるかそのような作業を行っていない空運転状態にあるかを検出する負荷圧検出手段と、前記操作状態検出手段で前記所定の機器がすべて停止状態であることが検出されるか、前記操作状態検出手段で前記所定の機器のうち少なくとも１つが動作状態であることが検出されかつ前記負荷圧検出手段で当該動作状態の機器のすべてが前記空運転状態であることが検出された場合で、かつ、前記操作状態検出手段で前記走行手段が停止状態であることが検出された第５の場合には、前記回転数設定手段の設定に関係なく前記燃料噴射手段からの燃料噴射量を前記エンジンのアイドリング回転数に対応するように予め設定した第１所定値に制限し、前記第５の場合でない第６の場合には前記燃料噴射手段からの燃料噴射量を前記回転数設定手段の設定に応じた値とする第３燃料噴射制御手段と、この第３燃料噴射制御手段による前記第１所定値への制限を行うか行わないかを選択する第３選択手段とを有する。
（２９）上記目的を達成するために、また本発明は、被破砕物を破砕する自走式破砕機において、破砕装置及びこの破砕装置による破砕作業に関連する作業を行う補助機械を含む複数の機器と、これら複数の機器をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段と、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか、若しくは前記所定の機器のうち動作状態にあるものがすべて被破砕物に対し前記破砕又は破砕作業に関連する作業を行っていない空運転状態であることを検出する第１検出手段と、
この第１検出手段の検出値に基づいて前記エンジンの回転数を予め設定したアイドリング回転数に制御する第１制御手段とを備える。
（３０）また上記目的を達成するために、本発明は、被破砕物を破砕する自走式破砕機において、ホッパと、このホッパで受け入れた被破砕物を破砕する破砕装置、被破砕物を前記破砕装置へ供給するフィーダ、及び前記破砕装置で破砕された被破砕物を運搬するコンベアを含む複数の機器と、これら複数の機器をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段と、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか、若しくは前記所定の機器のうち動作状態にあるものがすべて被破砕物に対し前記破砕又は破砕作業に関連する作業を行っていない空運転状態であることを検出する第１検出手段と、この第１検出手段の検出値に基づいて前記エンジンの回転数を予め設定したアイドリング回転数に制御する第１制御手段とを備える。
（３１）また上記目的を達成するために、本発明は、被破砕物を破砕する自走式破砕機において、破砕装置による破砕作業に関連する作業を行う補助機械を含む複数の機器と、走行手段を備えた走行体と、前記複数の機器及び前記走行体をそれぞれ駆動する複数の油圧アクチュエータと、これら複数の油圧アクチュエータへの圧油を吐出する少なくとも１つの油圧ポンプと、前記油圧ポンプを駆動するエンジンと、前記複数の油圧アクチュエータをそれぞれ操作する複数の操作手段と、前記走行手段が停止状態であり、かつ、前記複数の機器のうち前記破砕装置を含む所定の機器がすべて停止状態であるか若しくは前記所定の機器のうち動作状態にあるものがすべて被破砕物に対し前記破砕又は破砕作業に関連する作業を行っていない空運転状態であることを検出する第２検出手段と、この第２検出手段の検出値に基づいて前記エンジンの回転数を予め設定したアイドリング回転数に制御する第２制御手段とを備える。 [0045]
(28) In order to achieve the above object, the present invention also includes a crushing apparatus, a feeder for supplying the material to be crushed to the crushing apparatus, and a plurality of conveyors for conveying the material to be crushed crushed by the crushing apparatus. Device, a traveling body including traveling means, a plurality of hydraulic actuators for driving the plurality of devices, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, the hydraulic pump is driven an engine that is provided on the self-propelled crushing machine having a plurality of operating means for operating each of said plurality of hydraulic actuators, the engine control device of the self-propelled crushing machine for controlling the rotational speed of said engine, said engine Rotation speed setting means for setting the rotation speed of the engine, fuel injection means for injecting fuel to the engine, and the crushing apparatus among the plurality of devices. Operation state detection means for detecting whether the predetermined device and the traveling means are in the operating state or in the stopped state by detecting the operation state of the operation means respectively corresponding to the predetermined device and the traveling means; When the operating state of the predetermined device is detected by the operation state detecting means, the predetermined device is a crushed object by detecting the load pressure of the hydraulic actuator corresponding to the predetermined device. On the other hand, load pressure detection means for detecting whether or not the crushing or the work related to the work is performed in an actual operation state or an idle operation state in which such work is not performed, and the operation state detection means It is detected that all the predetermined devices are in the stopped state, or the operation state detecting means is detected that at least one of the predetermined devices is in the operating state, and A fifth case where the load pressure detection means detects that all of the devices in the operating state are in the idle operation state, and the operation state detection means detects that the traveling means is in the stop state In this case, the fuel injection amount from the fuel injection means is limited to a first predetermined value set in advance to correspond to the idling speed of the engine regardless of the setting of the rotation speed setting means, and the fifth In the sixth case which is not the case, the third fuel injection control means for setting the fuel injection amount from the fuel injection means to a value according to the setting of the rotation speed setting means, and the third fuel injection control means And (3) third selecting means for selecting whether or not to limit to a predetermined value.
(29) In order to achieve the above object, the present invention also provides a self-propelled crushing machine for crushing a material to be crushed, comprising: a crushing apparatus; and a plurality of auxiliary machines performing operations related to the crushing work by the crushing apparatus. A device, a plurality of hydraulic actuators for driving the plurality of devices, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, an engine for driving the hydraulic pump, and the plurality of hydraulic actuators All of the plurality of operation means for operating each of the predetermined devices including the crushing device among the plurality of devices in the stopped state, or all of the predetermined A first detection means for detecting an idle operation state in which no work related to the crushing or the crushing work is performed;
First control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on the detection value of the first detection means.
(30) In order to achieve the above object, the present invention provides a hopper, a crushing apparatus for crushing a material to be crushed received by the hopper, and a material to be crushed, in a self-propelled crusher for crushing a material to be crushed To a plurality of devices including a feeder for supplying to the crusher and a conveyor for conveying an object crushed by the crusher, a plurality of hydraulic actuators respectively driving the plurality of devices, and the plurality of hydraulic actuators At least one hydraulic pump for discharging pressure oil, an engine for driving the hydraulic pump, and a plurality of operating means for operating the plurality of hydraulic actuators, respectively. All the predetermined devices including the crushing device among the plurality of devices are in the stopped state, or all the predetermined devices among the predetermined devices in the operating state are the work related to the crushing or the crushing work on the object to be crushed A first detection means for detecting that the vehicle is not in the idle state, and a first control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on the detection value of the first detection means; Equipped with
(31) In order to achieve the above object, the present invention is directed to a self-propelled crushing machine for crushing an object to be crushed, and a plurality of devices including an auxiliary machine for performing an operation related to the crushing operation by the crushing apparatus , A plurality of hydraulic actuators for driving the plurality of devices and the traveling body, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, and the hydraulic pump Engine, a plurality of operating means for operating the plurality of hydraulic actuators, and the traveling means are in a stopped state, and a predetermined one of the plurality of devices including the crushing device is in a stopped state Or an idle operation in which none of the predetermined devices that are in operation are in the crushing operation or the crushing operation. Comprising a second detection means for detecting that a state and a second control means for controlling the idling speed set in advance the rotational speed of the engine based on the detected value of the second detection means.

Claims

Discharging a plurality of devices including an auxiliary machine that performs tasks related to crushing operation by the crushing device and the crushing device, and a plurality of hydraulic actuators for driving the plurality of devices respectively, the pressure oil to the plurality of hydraulic actuators Provided in a self-propelled crusher having at least one hydraulic pump, an engine for driving the hydraulic pump, and a plurality of operating means for operating the plurality of hydraulic actuators, and controlling the number of rotations of the engine In the engine control device of a self-propelled crusher ,
All the predetermined devices including the crushing device among the plurality of devices are in the stopped state, or all the predetermined devices among the predetermined devices in the operating state are the work related to the crushing or the crushing work on the object to be crushed First detecting means for detecting that the vehicle is in an idle state where
An engine control apparatus for a self-propelled crushing machine, comprising: first control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on a detection value of the first detection means.

A plurality of devices including a crushing apparatus for crushing the material to be crushed received by the hopper, a feeder for supplying the material to be crushed to the crushing apparatus, and a conveyor for conveying the material to be crushed crushed by the crushing apparatus A plurality of hydraulic actuators respectively driving equipment, at least one hydraulic pump discharging hydraulic fluid to the plurality of hydraulic actuators, an engine driving the hydraulic pump, and a plurality of operating the plurality of hydraulic actuators In an engine control device of a self-propelled crusher provided in a self-propelled crusher having an operation means, which controls the number of revolutions of the engine ,
All the predetermined devices including the crushing device among the plurality of devices are in the stopped state, or all the predetermined devices among the predetermined devices in the operating state are the work related to the crushing or the crushing work on the object to be crushed First detecting means for detecting that the vehicle is in an idle state where
An engine control apparatus for a self-propelled crushing machine, comprising: first control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on a detection value of the first detection means.

In the engine control device of the self-propelled crusher according to claim 1 or 2,
Have a rotational speed setting means for setting a revolution speed of said engine,
Before Symbol first control means, it being in the operating state of the predetermined device is one or a predetermined all stopped device by the first detection means are all the idling state is detected In the first case, regardless of the setting of the rotational speed setting means, the rotational speed of the engine is limited to the idling rotational speed, and in the second case which is not the first case, the rotational speed of the engine is An engine control apparatus for a self-propelled crushing machine, comprising: first limiting means for setting the number of rotations according to the setting of the number of rotations setting means.

In the engine control device of a self-propelled crusher according to claim 3,
Have a fuel injection means for injecting fuel into the engine,
Before Symbol first limiting means, wherein, when the first is to limit the amount of fuel injected from said fuel injection means regardless of the setting of the rotational speed setting means in a first predetermined value corresponding to the idling rotational speed , self-propelled crushing in the case of the second is characterized by comprising a first fuel injection control means for a value corresponding to the fuel injection amount from the fuel injection means to the setting of the rotational speed setting means Control unit of the aircraft .

In the engine control device of the self-propelled crusher according to claim 1 or 2,
A first operation state detection unit that detects whether a predetermined device including the crushing device among the plurality of devices is in an operation state or in a stop state;
In an actual operating state in which, when the first operating state detecting means detects the operating state of the predetermined device, the predetermined device is performing the work related to the crushing or the crushing work on the object to be crushed An engine control apparatus for a self-propelled crusher , comprising: first operation state detection means for detecting whether there is an idle state or an idle state.

A plurality of devices including an auxiliary machine that performs tasks related to crushing operation by the crushing device, and a traveling body provided with a traveling means, a plurality of hydraulic actuators for driving the plurality of devices and the running body respectively, the plurality A self-propelled crushing machine having at least one hydraulic pump for discharging pressure oil to the hydraulic actuator, an engine for driving the hydraulic pump, and a plurality of operating means for operating the plurality of hydraulic actuators, respectively. An engine control device of a self-propelled crusher for controlling the number of revolutions of the engine ,
The traveling means is in a stopped state, and the predetermined device is intended for all objects to be crushed in the operating state of all of or or the predetermined a stopped state device including the crushing device among the plurality of devices And second detection means for detecting an idle operation state in which no work related to the crushing or the crushing work is performed;
An engine control apparatus for a self-propelled crushing machine, comprising: a second control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on a detection value of the second detection means.

In the engine control device of a self-propelled crusher according to claim 6,
Have a rotational speed setting means for setting a revolution speed of said engine,
Before Stories second control means, the second detecting means, the traveling means is in a stopped state, and whether the predetermined device including the crushing device among the plurality of devices are all stopped state or the predetermined In the third case where it is detected that all of the devices in the operating state are in the idle state, the engine rotational speed is set to the idling rotational speed regardless of the setting of the rotational speed setting means. limited to, in the case of the fourth non-case of the third, characterized in that it comprises a second limiting means for the rotation speed corresponding to the rotational speed of the engine to the setting of the rotational speed setting means itself Engine control unit for mobile crusher .

In the engine control device of a self-propelled crusher according to claim 7,
Have a fuel injection means for injecting fuel into the engine,
In the third case, the second limiting means limits the fuel injection amount from the fuel injection means to a first predetermined value corresponding to the idling speed regardless of the setting of the rotational speed setting means. In the fourth case, a self-propelled crushing machine is provided with a second fuel injection control means for setting the fuel injection amount from the fuel injection means to a value according to the setting of the rotation speed setting means. Engine control unit .

In the engine control device of a self-propelled crusher according to claim 6,
A second operation state detection unit configured to detect whether the predetermined device including the crushing device among the plurality of devices and the traveling unit are in the operation state or in the stop state;
In an actual operating state in which, when the operating state of the predetermined device is detected by the second operating state detection means, the predetermined device is performing the work related to the crushing or the crushing work on the object to be crushed An engine control apparatus for a self-propelled crusher , comprising: second operation state detection means for detecting whether there is an operation state or an idle state.

In the engine control device of a self-propelled crusher according to claim 3 or 7,
An engine control apparatus for a self-propelled crushing machine, comprising: first and second selection means for respectively selecting whether or not to perform the restriction by the first or second restriction means.

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means sets the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means in the second case or the fourth case, In the case of 1 or the third case, an engine of a self-propelled crusher characterized by reducing the fuel injection amount from the fuel injection means to the first predetermined value with a substantially rectangular wave-like response characteristic. Control unit .

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means sets the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means in the second case or the fourth case, In the case of 1 or the third case, the engine control of the self-propelled crusher characterized in that the fuel injection amount from the fuel injection means is reduced to the first predetermined value with an asymptotic response characteristic. Device .

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means sets the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means in the second case or the fourth case, In the case of 1 or the third case, an engine control apparatus of a self-propelled crusher characterized by reducing the fuel injection amount from the fuel injection means to the first predetermined value with a predetermined delay time. .

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means sets the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means in the second case or the fourth case, In the case of 1 or the third case, the fuel injection amount from the fuel injection means is limited to a second predetermined value larger than the first predetermined value, and maintained for a predetermined time at this second predetermined value. An engine control apparatus for a self-propelled crusher , wherein the response is reduced to the first predetermined value with a substantially rectangular wave-like response characteristic.

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means sets the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means in the second case or the fourth case, In the case of 1 or the third case, the fuel injection amount from the fuel injection means is limited to a second predetermined value larger than the first predetermined value, and maintained for a predetermined time at this second predetermined value. An engine control system of a self-propelled crusher , wherein the first predetermined value is decreased with an asymptotic response characteristic.

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means limits the amount of fuel injection from the fuel injection means to the first predetermined value in the first or third case, the second case Alternatively, in the fourth case, the self-propelled crushing is characterized in that the fuel injection amount from the fuel injection means is increased to a value according to the setting of the rotational speed setting means with a substantially rectangular wave-like response characteristic. Control unit of the aircraft .

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means limits the amount of fuel injection from the fuel injection means to the first predetermined value in the first or third case, the second case Alternatively, in the fourth case, the self-propelled crusher is characterized in that the fuel injection amount from the fuel injection means is increased with an asymptotic response characteristic to a value according to the setting of the rotational speed setting means. Engine control unit .

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means limits the amount of fuel injection from the fuel injection means to the first predetermined value in the first or third case, the second case In the case of the fourth case, the self-propelled crushing machine is characterized in that the fuel injection amount from the fuel injection means is increased to a value according to the setting of the rotation number setting means with a predetermined delay time . Engine control unit .

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means limits the amount of fuel injection from the fuel injection means to the first predetermined value in the first or third case, the second case Alternatively, in the fourth case, the fuel injection amount from the fuel injection means is set to a third predetermined value larger than the first predetermined value, and maintained at this third predetermined value for a predetermined time, and then substantially rectangular wave shape An engine control device of a self-propelled crusher characterized by increasing the response characteristic to a value according to the setting of the rotation number setting means.

In the engine control device of a self-propelled crusher according to claim 4 or 8,
When the first or second limiting means limits the amount of fuel injection from the fuel injection means to the first predetermined value in the first or third case, the second case Or, in the fourth case, the fuel injection amount from the fuel injection means is set to a third predetermined value larger than the first predetermined value, and maintained at this third predetermined value for a predetermined time, and then asymptotic response An engine control device of a self-propelled crusher characterized by increasing the value to a value according to the setting of the rotation speed setting means by characteristics.

In the engine control device of a self-propelled crusher according to claim 4 or 8,
The first or second limiting means limits the fuel injection amount from the fuel injection means to the first predetermined value in the first or third case. A self-propelled crushing system characterized by comprising forced restriction releasing means for forcibly increasing the fuel injection amount from the fuel injection means to a value according to the setting of the rotation number setting means regardless of the detection result of the detecting means. Control unit of the aircraft .

In the engine control device of a self-propelled crusher according to claim 2,
Revolution number setting means for setting the number of revolutions of the engine;
Fuel injection means for injecting fuel into the engine;
In the first control means, the first detection means detects that all of the predetermined devices are in the stopped state or all of the predetermined devices in the operating state are in the idle state. In the case of 1, the number of revolutions of the engine is limited to the idling number of revolutions regardless of the setting of the number of revolutions setting means, and in the second case which is not the first case, the number of revolutions of the engine A first limiting means for setting the number of revolutions according to the setting of the number of revolutions setting means;
In the first case, the first limiting means limits the fuel injection amount from the fuel injection means to a first predetermined value corresponding to the idling rotational speed regardless of the setting of the rotational speed setting means. In the second case, there is provided a first fuel injection control means for setting the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means, and in the second case from the fuel injection means When the first case is reached when the fuel injection amount of the fuel injection amount is set according to the setting of the rotation speed setting means, the fuel injection amount from the fuel injection means is decreased to the first predetermined value, An engine control device of a self-propelled crusher characterized by stopping or decelerating the feeder.

In the engine control device of a self-propelled crusher according to claim 5 or 9,
An engine control apparatus for a self-propelled crushing machine, wherein the first or second operation state detection means includes operation state detection means for detecting the operation states of the plurality of operation means corresponding to the predetermined device. .

In the engine control device of a self-propelled crusher according to claim 5 or 9,
An engine control apparatus of a self-propelled crushing machine, wherein the first or second operation state detection means includes a load pressure detection means for detecting a load pressure of the plurality of hydraulic actuators corresponding to the predetermined device. .

The engine control device of a self-propelled crusher according to any one of claims 1, 2, and 6,
The first or second detection means, wherein the status of the objects to be crushed, light, electromagnetic wave, and self-propelled crushing which comprises a wave detection means is detected using at least one of ultrasonic Control unit of the aircraft .

In the engine control device of a self-propelled crusher according to claim 2 ,
The first detection means includes wave dynamic detection means for detecting the condition of the object to be crushed using at least one of a light beam, an electromagnetic wave and an ultrasonic wave,
An engine control apparatus of a self-propelled crushing machine, wherein the wave dynamic detection means detects a stagnation condition or a flow condition of the material to be crushed in at least one of the hopper, the feeder, and the crushing apparatus .

In the engine control device of a self-propelled crusher according to claim 2 ,
The first detection means includes wave dynamic detection means for detecting the condition of the object to be crushed using at least one of a light beam, an electromagnetic wave and an ultrasonic wave,
An engine control apparatus for a self-propelled crushing machine, wherein the wave dynamic detection means detects an operation state of a work tool for throwing the object to be crushed into the hopper.

A crushing apparatus, a feeder for supplying a material to be crushed to the crushing apparatus, and a plurality of devices including a conveyor for transporting the material to be crushed crushed by the crushing apparatus, a traveling body including traveling means, and a plurality of these devices A plurality of hydraulic actuators for driving the plurality of hydraulic actuators, at least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators, an engine for driving the hydraulic pumps, and a plurality of operations for operating the plurality of hydraulic actuators An engine control device of the self-propelled crusher provided in the self-propelled crusher having a means for controlling the number of revolutions of the engine ,
Revolution number setting means for setting the number of revolutions of the engine;
Fuel injection means for injecting fuel into the engine;
The predetermined device and the traveling means are in the operating state or in the stopped state by detecting the operation state of the operation means corresponding to the predetermined device including the crushing device and the traveling means among the plurality of devices. Operation state detection means for detecting presence or absence;
When the operation state of the predetermined device is detected by the operation state detection unit, the predetermined device detects the load on the object to be crushed by detecting the load pressure of the hydraulic actuator corresponding to the predetermined device. Load pressure detecting means for detecting whether or not the crushing or the work related to the work is performed in an actual operation state or in an idle state where such a work is not performed;
The operation state detection means detects that all the predetermined devices are in the stop state, or the operation state detection means detects that at least one of the predetermined devices is in the operation state, and the load pressure The fifth case where the detecting means detects that all the devices in the operating state are in the idle state, and the operation state detecting means detects that the traveling means is in the stopped state In the fifth case, the fuel injection amount from the fuel injection means is limited to a first predetermined value set in advance to correspond to the idling speed of the engine regardless of the setting of the rotation speed setting means. In the sixth case, the third fuel injection control means sets the fuel injection amount from the fuel injection means to a value according to the setting of the rotational speed setting means;
An engine control apparatus for a self-propelled crusher , comprising: third selection means for selecting whether to perform restriction to the first predetermined value by the third fuel injection control means.

In a self-propelled crusher that crushes the material to be crushed,
  A plurality of devices including a crushing apparatus and an auxiliary machine for performing operations related to the crushing operation by the crushing apparatus;
  A plurality of hydraulic actuators each driving the plurality of devices;
  At least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators;
  An engine for driving the hydraulic pump;
  A plurality of operation means for respectively operating the plurality of hydraulic actuators;
All the predetermined devices including the crushing device among the plurality of devices are in the stopped state, or all the predetermined devices among the predetermined devices in the operating state are the work related to the crushing or the crushing work on the object to be crushed First detecting means for detecting that the vehicle is in an idle state where
  First control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on the detection value of the first detection means;
Self-propelled crusher characterized by having.

In a self-propelled crusher that crushes the material to be crushed,
  Hopper,
  A plurality of devices including a crushing apparatus for crushing the material to be crushed received by the hopper, a feeder for supplying the material to be crushed to the crushing apparatus, and a conveyor for transporting the material to be crushed crushed by the crushing apparatus;
  A plurality of hydraulic actuators each driving the plurality of devices;
  At least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators;
  An engine for driving the hydraulic pump;
  A plurality of operation means for respectively operating the plurality of hydraulic actuators;
All the predetermined devices including the crushing device among the plurality of devices are in the stopped state, or all the predetermined devices among the predetermined devices in the operating state are the work related to the crushing or the crushing work on the object to be crushed First detecting means for detecting that the vehicle is in an idle state where
  First control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on the detection value of the first detection means;
Self-propelled crusher characterized by having.

In a self-propelled crusher that crushes the material to be crushed,
A plurality of devices including an auxiliary machine for performing work related to the crushing operation by the crushing device;
A traveling body equipped with traveling means,
A plurality of hydraulic actuators respectively driving the plurality of devices and the traveling body;
At least one hydraulic pump for discharging pressure oil to the plurality of hydraulic actuators;
An engine for driving the hydraulic pump;
A plurality of operation means for respectively operating the plurality of hydraulic actuators;
The traveling means is in a stopped state, and all the predetermined devices including the crushing device among the plurality of devices are in a stopped state or all of the predetermined devices are in an operating state. And second detection means for detecting an idle operation state in which no work related to the crushing or the crushing work is performed;
Second control means for controlling the number of revolutions of the engine to a preset idling number of revolutions based on the detection value of the second detection means;
Self-propelled crusher characterized by having .