JP2005350919A - Wheel type construction machinery - Google Patents

Wheel type construction machinery Download PDF

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JP2005350919A
JP2005350919A JP2004171377A JP2004171377A JP2005350919A JP 2005350919 A JP2005350919 A JP 2005350919A JP 2004171377 A JP2004171377 A JP 2004171377A JP 2004171377 A JP2004171377 A JP 2004171377A JP 2005350919 A JP2005350919 A JP 2005350919A
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wheel
lower traveling
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working device
traveling body
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JP4227936B2 (en
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Eiji Egawa
栄治 江川
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Hitachi Construction Machinery Co Ltd
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Hitachi Construction Machinery Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide wheel type construction machinery capable of facilitating the cooperative work of a back-hoe type working device and a loader type working device and efficiently carrying out the separation, the collection and the conveyance of an object by one unit of the device. <P>SOLUTION: In the wheel type construction machinery having the second working device (the back-hoe type working device) capable of making the separation and collection of the object on an upper swing body and having the first working device (the loader type working device) on the front section (a front wheel side) of a lower traveling body, the turning center of the upper turning body is placed on the approximately center of the lower traveling body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、バケットにより対象物（資材等）の収集と運搬が可能な第１作業装置と、把持手段やバケット等により対象物の分別収集が可能な第２作業装置とを有し、対象物の分別、収集、運搬を、１台で効率よく行うことができるホイール式建設機械に関する。   The present invention has a first working device capable of collecting and transporting objects (materials, etc.) by a bucket, and a second working device capable of separately collecting objects by a gripping means, a bucket, etc. The present invention relates to a wheel-type construction machine that can efficiently separate, collect, and transport a single machine.

従来、対象物の分別、収集、運搬を行うには、一般的に、ハンドリング作業機と運搬用車両の双方を準備する必要があった。図７は、このような従来の作業例を示す図であり、図７の（ａ）に示すように、まず、ハンドリング作業機１０１により、対象物（資材等）１０３を分別収集して、対象物１０３を運搬用車両１０２の荷台に積載し、次に、図７の（ｂ）、（ｃ）に示すように、運搬用車両１０２によって対象物１０３を目的の場所まで運搬して、対象物１０３を降ろすようにしていた。   Conventionally, in order to sort, collect, and transport an object, it is generally necessary to prepare both a handling work machine and a transport vehicle. FIG. 7 is a diagram showing such a conventional work example. As shown in FIG. 7A, first, the handling work machine 101 separates and collects the objects (materials, etc.) 103 to obtain the target. The object 103 is loaded on the loading platform of the transporting vehicle 102, and then the object 103 is transported to the target location by the transporting vehicle 102 as shown in FIGS. I was trying to lower 103.

しかし、図７に示した作業においては、対象物のハンドリング作業を行うハンドリング作業機と対象物の運搬を行う運搬用車両の双方が必要であると同時に、それぞれオペレータが必要であるため、機械・車両の双方を購入しなければならず購入費が嵩む上、人件費も嵩むものとなっていた。また、ハンドリング作業機と運搬用車両の２台が互いに連携して作業を行う必要があるため、産業廃棄物の中間処理場や建設現場などの限られた敷地内での作業では、作業効率が非常に良くないという問題もあった。   However, the work shown in FIG. 7 requires both a handling work machine for handling the object and a transporting vehicle for carrying the object, and at the same time requires an operator. Both of the vehicles had to be purchased, and the purchase cost increased and the labor cost also increased. In addition, since it is necessary for the handling work machine and the transport vehicle to work together, work efficiency is limited when working on limited sites such as industrial waste intermediate treatment plants and construction sites. There was also a problem that it was not very good.

そこで、車体の前方にバックホウ式とローダ式の２つ作業装置をもち、掘削からローディング、走行へと作業を切り換えることで、１台で掘削と運搬とが行えるバックホウ・ローダが提案されている（特許文献１参照）。
特許第２５６４４５０号公報 In view of this, a backhoe loader has been proposed that has two working devices, a backhoe type and a loader type, in front of the vehicle body, and that can be excavated and transported by switching from excavation to loading and traveling. Patent Document 1).
Japanese Patent No. 2564450

特許文献１に記載されたバックホウ・ローダ（ホイール式建設機械）においては、下部走行体上で旋回可能な上部旋回体に、バケットをもつバックホウ式作業装置を設けるとともに、下部走行体に、ローディング作業を行うためのローダ式作業装置を設けているため、１台のホイール式建設機械で、掘削と運搬とが行える。   In the backhoe loader (wheel-type construction machine) described in Patent Document 1, a backhoe type working device having a bucket is provided on an upper turning body that can turn on a lower traveling body, and a loading operation is performed on the lower traveling body. Since a loader type working device is provided for excavation, excavation and transportation can be performed with one wheel type construction machine.

しかし、特許文献１に記載されたバックホウ・ローダ（ホイール式建設機械）では、一般のホイール式油圧ショベルと同様に、走行時の車体全長を短くすることを最優先に考慮した設計であるため、走行時にバックホウ式作業装置がなるべく前方に出っ張らないようにするべく、上部旋回体の旋回中心を下部走行体の後部に設けた構成を採っている。このため、上部旋回体の運転室にいるオペレータには、下部走行体の間近前方がほとんど見えず、上部旋回体に設けられたバックホウ式作業装置と、下部走行体の前部に設けられたローダ式作業装置との、協調作業を行うことを困難にしていた。   However, the backhoe loader (wheel-type construction machine) described in Patent Document 1 is designed with the highest priority given to shortening the overall length of the vehicle during traveling, as with a general wheel-type hydraulic excavator. In order to prevent the backhoe working device from protruding forward as much as possible during traveling, a configuration in which the turning center of the upper swinging body is provided at the rear of the lower traveling body is employed. For this reason, the operator in the cab of the upper swing body hardly sees the near front of the lower traveling body, the backhoe type work device provided in the upper swing body and the loader provided in the front of the lower traveling body This makes it difficult to perform cooperative work with the type work device.

また、特許文献１に記載されたバックホウ・ローダ（ホイール式建設機械）では、走行体の前輪と後輪とを、ともにそれぞれ操舵可能として、ローダ式作業装置のある前輪側も操舵される構成としている。このため、前輪の２つのタイヤの操舵範囲分は、タイヤの操舵移動のための空きスペースとして確保する必要があり、したがって、前輪の２つのタイヤ間の有効利用できるスペースが大きく制限されて、ローダ式作業装置のリフトアームをあまり手前にもってこられない構造となっていた。よって、下部走行体の手前側でのローダ式作業装置の作業性が要求される荷役作業などには不向きなものとなっている上、ローダ式作業装置の作業範囲を手前に広く確保できないので、この点でも、下部走行体の間近前方でのバックホウ式作業装置とローダ式作業装置との協調作業を困難なものにしていた。   Moreover, in the backhoe loader (wheel type construction machine) described in Patent Document 1, both the front wheels and the rear wheels of the traveling body can be steered, and the front wheel side with the loader type work device is also steered. Yes. Therefore, the steering range of the two tires for the front wheels needs to be secured as an empty space for the steering movement of the tires. Therefore, the space that can be effectively used between the two tires for the front wheels is greatly limited, and the loader The lift arm of the type work device cannot be brought too close. Therefore, it is unsuitable for cargo handling work where the workability of the loader type work device on the front side of the lower traveling body is required, and the work range of the loader type work device cannot be secured widely in front, In this respect as well, the cooperative work between the backhoe type work device and the loader type work device in the vicinity of the lower traveling body is made difficult.

本発明は上記の点に鑑みなされたもので、その目的とするところは、上部旋回体に対象物の分別収集が可能な第２作業装置（バックホウ式作業装置）を有し、下部走行体の前部（前輪側）に第１作業装置（ローダ式作業装置）を有するホイール式建設機械において、第２作業装置（バックホウ式作業装置）と第１作業装置（ローダ式作業装置）の協調作業を容易にして、対象物の分別、収集、運搬を、１台で効率良く行えるようにすることにある。   The present invention has been made in view of the above points. The object of the present invention is to have a second working device (backhoe working device) capable of separately collecting an object on an upper swing body, In a wheel-type construction machine having a first work device (loader type work device) on the front (front wheel side), cooperative work of the second work device (backhoe type work device) and the first work device (loader type work device) is performed. The object is to make it easy to efficiently sort, collect and transport objects.

本発明は上記した目的を達成するため、ホイール式の走行装置と、該走行装置により移動が可能な下部走行体と、該下部走行体の前部に上下動可能に取り付けられ、バケットにより対象物の収集と運搬が可能な第１作業装置と、前記下部走行体上に旋回可能に取り付けられた上部旋回体と、該上部旋回体の前部に上下動可能に取り付けられ、把持手段やバケット等により対象物の分別収集が可能な第２作業装置とを、有するホイール式建設機械において、前記上部旋回体の旋回中心を、前記下部走行体の略中央に設けた構成をとる。
さらに、前記上部旋回体の旋回半径を、前記下部走行体の車幅の範囲内に収めるようにした構成をとる。
また、本発明は上記した目的を達成するため、ホイール式の走行装置と、該走行装置により移動が可能な下部走行体と、該下部走行体の前部に上下動可能に取り付けられ、バケットにより対象物の収集と運搬が可能な第１作業装置と、前記下部走行体上に旋回可能に取り付けられた上部旋回体と、該上部旋回体の前部に上下動可能に取り付けられ、把持手段やバケット等により対象物の分別収集が可能な第２作業装置とを、有するホイール式建設機械において、前記下部走行体は、後輪側だけを操舵可能とされた構成とする。 In order to achieve the above-described object, the present invention provides a wheel-type traveling device, a lower traveling body that can be moved by the traveling device, and an object that is attached to a front portion of the lower traveling body so as to be movable up and down. A first working device capable of collecting and transporting, an upper revolving body that is pivotably mounted on the lower traveling body, and a front means of the upper revolving body that can be moved up and down, a gripping means, a bucket, etc. In the wheel-type construction machine having the second working device capable of separately collecting the object by the above, the turning center of the upper turning body is provided at the substantially center of the lower traveling body.
Furthermore, a configuration is adopted in which the turning radius of the upper turning body is set within the range of the vehicle width of the lower traveling body.
In order to achieve the above-mentioned object, the present invention is equipped with a wheel-type traveling device, a lower traveling body that can be moved by the traveling device, and a front traveling portion of the lower traveling body that can be moved up and down. A first working device capable of collecting and transporting an object; an upper revolving body that is pivotably mounted on the lower traveling body; and a front means of the upper revolving body that is vertically movable and is attached to a gripping means, In the wheel-type construction machine having the second working device capable of separately collecting the object with a bucket or the like, the lower traveling body is configured to be steerable only on the rear wheel side.

本発明によれば、上部旋回体の旋回中心を下部走行体の略中央に配置しているので、上部旋回体の運転室が、特許文献１に示された従来技術よりも前寄りになり、したがって、運転室内のオペレータは、下部走行体の間近前方を確実に視認できるようになり、第２作業装置（バックホウ式作業装置）と第１作業装置（ローダ式作業装置）の協調作業を容易に行える。
さらに、上部旋回体の旋回半径を下部走行体の車幅の範囲内に収めることで、コンパクトな車体構造が実現できる。
また、本発明によれば、下部走行体は後輪側だけを操舵可能としているので、前輪のタイヤのための操舵範囲分の空きスペースを、前輪の２つのタイヤ間に確保する必要がなくなり、このため、前輪の２つのタイヤ間に、第１作業装置（ローダ式作業装置）のリフトアームを容易に移動させることが可能となり、したがって、下部走行体の前輪側における第１作業装置（ローダ式作業装置）の作業範囲を手前にも広く確保できるので、下部走行体の手前側での第１作業装置（ローダ式作業装置）の作業性が要求される荷役作業などにも好適なものとなる上、下部走行体の間近前方でのバックホウ式作業装置とローダ式作業装置との協調作業も容易に行える。
したがって、バックホウ式作業装置とローダ式作業装置との協調作業が容易であるので、対象物の分別、収集、運搬を１台で迅速に行えることとなり、産業廃棄物の中間処理場や建設現場などの限られた敷地内においては、極めて作業効率のよい建設機械となる。 According to the present invention, since the turning center of the upper swing body is disposed at the approximate center of the lower traveling body, the cab of the upper swing body is more forward than the prior art disclosed in Patent Document 1, Therefore, the operator in the cab can surely visually recognize the front and the front of the lower traveling body, and facilitates the cooperative work of the second working device (backhoe working device) and the first working device (loader working device). Yes.
Furthermore, a compact vehicle body structure can be realized by keeping the turning radius of the upper turning body within the range of the vehicle width of the lower traveling body.
Further, according to the present invention, since the lower traveling body can steer only the rear wheel side, there is no need to secure an empty space for the steering range for the tire of the front wheel between the two tires of the front wheel, For this reason, it becomes possible to easily move the lift arm of the first working device (loader type working device) between the two tires of the front wheel, and therefore the first working device (loader type) on the front wheel side of the lower traveling body. Since the work range of the work device) can be secured widely in front, it is also suitable for cargo handling work that requires workability of the first work device (loader type work device) on the front side of the lower traveling body. Coordinate work between the backhoe type work device and the loader type work device can be easily performed in front of the upper and lower traveling bodies.
Accordingly, since the cooperative work between the backhoe type work device and the loader type work device is easy, it is possible to quickly separate, collect, and transport the object with one unit, such as an industrial waste intermediate treatment plant or construction site. In a limited site, the construction machine is extremely efficient.

以下、本発明の実施の形態を、図面を用いて説明する。
図１〜図６は、本発明の一実施形態（以下、本実施形態と記す）によるホイール式建設機械（ホイール式バックホウ・ローダ）に係り、図１は、本実施形態のホイール式建設機械の側面から見た外観図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 relate to a wheel type construction machine (wheel type backhoe loader) according to an embodiment of the present invention (hereinafter referred to as the present embodiment), and FIG. 1 illustrates the wheel type construction machine of the present embodiment. It is the external view seen from the side.

図１において、Ａは下部走行体、Ｂは下部走行体Ａ上に旋回可能に取り付けられた上部旋回体である。下部走行体Ａは、走行駆動部２６と、走行駆動部２６で駆動される前輪２８Ａおよび後輪２８Ｂと、後輪２８Ｂを操舵する操舵部２７とを、有する走行装置１、および、走行装置１により走行移動が可能な車体２９を含んで構成されている。また、下部走行体Ａの前部には、リフトアーム２４とローダバケット２５を有し、ローディング作業を行うローダ式作業装置（第１作業装置）２が設けられている。上部旋回体Ｂは、エンジンや油圧システム等で構成された駆動システム３と、ステアリングやアクセルペダル、操作レバー等を有する運転室４と、旋回装置２３を含んで構成されている。また、上部旋回体Ｂには、ブーム２０、アーム２１、把持手段２２を有するバックホウ式作業装置（第２作業装置）５が設けられている。   In FIG. 1, A is a lower traveling body, and B is an upper revolving body attached to the lower traveling body A so as to be able to swivel. The lower traveling body A includes a travel drive unit 26, a travel device 1 having a front wheel 28A and a rear wheel 28B driven by the travel drive unit 26, and a steering unit 27 that steers the rear wheel 28B. Thus, the vehicle body 29 is configured to be movable. In addition, a loader type working device (first working device) 2 that has a lift arm 24 and a loader bucket 25 and performs loading work is provided at the front portion of the lower traveling body A. The upper swing body B includes a drive system 3 configured by an engine, a hydraulic system, and the like, a cab 4 having a steering, an accelerator pedal, an operation lever, and the like, and a swing device 23. Further, the upper swing body B is provided with a backhoe working device (second working device) 5 having a boom 20, an arm 21, and a gripping means 22.

上下動可能なローダ式作業装置２は、ローダバケット２５により対象物（資材等）の収集と運搬を行うようになっており、上下動可能なバックホウ式作業装置５は、把持手段２２により対象物の破砕や分別収集を行うようになっており、バックホウ式作業装置５で分別収集した対象物を、ローダ式作業装置２のローダバケット２５内に貯め込むことができるようになっている。なお、本実施形態では、バックホウ式作業装置５には把持手段２２を設けた構成例を示したが、把持手段２２に代替してバックホウバケットを設けた構成としてもよい。   The loader-type work device 2 that can move up and down is configured to collect and carry objects (materials, etc.) by a loader bucket 25, and the backhoe-type work device 5 that can move up and down can be moved by the gripping means 22. The object collected and collected by the backhoe type work device 5 can be stored in the loader bucket 25 of the loader type work device 2. In the present embodiment, the configuration example in which the gripping means 22 is provided in the backhoe type work device 5 is shown, but a configuration in which a backhoe bucket is provided instead of the gripping means 22 may be adopted.

図２は、本実施形態のホイール式建設機械の一部を簡略化した底面図であり、図３は、本実施形態のホイール式建設機械の上面図である。図２、図３において、Ｏは上部旋回体Ｂの旋回中心であり、この旋回中心Ｏは、下部走行体Ａ（下部走行体Ａの車体２９）の略中心位置に設けられている。したがって、上部旋回体Ｂの運転室４が、前記特許文献１に示された従来技術よりも前寄りになり、運転室４内のオペレータは、下部走行体Ａの間近前方を確実に視認できるようになり、これによって、バックホウ式作業装置５で分別収集した対象物を、ローダ式作業装置２のローダバケット２５に積込むという、バックホウ式作業装置５とローダ式作業装置２との協調作業を、視認性よく、容易に行うことが可能になっている。   FIG. 2 is a simplified bottom view of a part of the wheel type construction machine of the present embodiment, and FIG. 3 is a top view of the wheel type construction machine of the present embodiment. 2 and 3, O is the turning center of the upper turning body B, and the turning center O is provided at a substantially central position of the lower traveling body A (the vehicle body 29 of the lower traveling body A). Therefore, the operator's cab 4 of the upper swing body B is closer to the front than the prior art disclosed in Patent Document 1 so that the operator in the operator's cab 4 can surely see the near front of the lower traveling body A. Thus, the cooperative work of the backhoe type work device 5 and the loader type work device 2 in which the object separately collected by the backhoe type work device 5 is loaded into the loader bucket 25 of the loader type work device 2, It can be easily performed with good visibility.

また、図２に示すように、上部旋回体Ｂの旋回半径ｒは、下部走行体Ａの車幅（車輪を含めた車幅）の範囲内に収まるように、上部旋回体Ｂの外形を設定しており、これにより、図２で２点鎖線で示した上部旋回体Ｂの回転軌跡が、下部走行体Ａの車幅を超えることがないので、コンパクトな車体構造が実現できるようになっている。   Further, as shown in FIG. 2, the outer shape of the upper turning body B is set so that the turning radius r of the upper turning body B is within the range of the vehicle width of the lower traveling body A (vehicle width including wheels). As a result, the rotation trajectory of the upper turning body B shown by the two-dot chain line in FIG. 2 does not exceed the vehicle width of the lower traveling body A, so that a compact vehicle body structure can be realized. Yes.

また、本実施形態では、下部走行体Ａは後輪２８Ｂ側だけを操舵可能として、前輪２８Ａは操舵できないようにしている。そのため、前輪の２つのタイヤ間には、前輪２８Ａのタイヤのための操舵範囲分の空きスペースを確保する必要がないので、図１、図３に示すように、前輪２８Ａの２つのタイヤ間に、ローダ式作業装置２のリフトアーム２４を、容易に移動させることが可能なように構成してある。したがって、下部走行体Ａの前輪２８Ａ側におけるローダ式作業装置２の作業範囲を手前にも広く確保できて、ローダ式作業装置２のローダバケット２５を、車体２９のできるだけ前方に低い位置で引き寄せることが可能となるので、下部走行体Ａの手前側でのローダ式作業装置２の作業性が要求される荷役作業などにも好適なものとなる。さらに、ローダ式作業装置２の作業範囲を手前にも広く確保できるので、下部走行体Ａの間近前方などでのバックホウ式作業装置５とローダ式作業装置２との協調作業も容易に行える。   Further, in the present embodiment, the lower traveling body A can steer only the rear wheel 28B side, and the front wheel 28A cannot be steered. Therefore, since it is not necessary to secure a space for the steering range for the tire of the front wheel 28A between the two tires of the front wheel, as shown in FIG. 1 and FIG. 3, between the two tires of the front wheel 28A. The lift arm 24 of the loader type work device 2 is configured so that it can be easily moved. Therefore, the working range of the loader type work device 2 on the front wheel 28A side of the lower traveling body A can be secured widely, and the loader bucket 25 of the loader type work device 2 can be pulled as low as possible in front of the vehicle body 29. Therefore, the loader work device 2 on the front side of the lower traveling body A is also suitable for a cargo handling operation that requires workability. Furthermore, since the working range of the loader type working device 2 can be secured widely, the cooperative work between the backhoe type working device 5 and the loader type working device 2 can be easily performed in front of the lower traveling body A.

図４は、本実施形態のホイール式建設機械の油圧回路を示す図である。図４において、１１はディーゼルエンジン、１２は可変容量型油圧ポンプ、１３はステアリング用の固定容量型油圧ポンプ、１４は必要以上の回路圧上昇を防ぐためのアンロード弁、２０ａはブーム２０用の油圧アクチュエータ、２０ｂはブーム２０用のコントロールバルブ、２１ａはアーム２１用の油圧アクチュエータ、２１ｂはアーム２１用のコントロールバルブ、２２ａは把持手段２２用の油圧アクチュエータ、２２ｂは把持手段２２用のコントロールバルブ、２３ａは旋回装置２３用の油圧アクチュエータ、２３ｂは旋回装置２３用のコントロールバルブ、２４ａはリフトアーム２４用の油圧アクチュエータ、２４ｂはリフトアーム２４用のコントロールバルブ、２５ａはローダバケット２５用の油圧アクチュエータ、２５ｂはローダバケット２５用のコントロールバルブ、２６ａは走行駆動部２６用の油圧アクチュエータ、２６ｂは走行駆動部２６用のコントロールバルブ、２７ａは操舵部２７用の油圧アクチュエータ、２７ｂは操舵部２７用のコントロールバルブである。   FIG. 4 is a diagram showing a hydraulic circuit of the wheel type construction machine of the present embodiment. In FIG. 4, 11 is a diesel engine, 12 is a variable displacement hydraulic pump, 13 is a fixed displacement hydraulic pump for steering, 14 is an unload valve for preventing an excessive increase in circuit pressure, and 20a is for a boom 20 Hydraulic actuator 20b is a control valve for the boom 20, 21a is a hydraulic actuator for the arm 21, 21b is a control valve for the arm 21, 22a is a hydraulic actuator for the gripping means 22, 22b is a control valve for the gripping means 22, 23a is a hydraulic actuator for the swing device 23, 23b is a control valve for the swing device 23, 24a is a hydraulic actuator for the lift arm 24, 24b is a control valve for the lift arm 24, 25a is a hydraulic actuator for the loader bucket 25, 25b is low A control valve for the bucket 25, 26a is a hydraulic actuator for the travel drive unit 26, 26b is a control valve for the travel drive unit 26, 27a is a hydraulic actuator for the steering unit 27, and 27b is a control valve for the steering unit 27. .

図４に示す構成において、ディーゼルエンジン１１により駆動される可変容量型油圧ポンプ１２から吐出される圧油は、各々の操作指令に応じて切り換えられる各コントロールバルブ２０ｂ〜２６ｂを介して、対応する各油圧アクチュエータ２０ａ〜２６ａに選択的に供給されて、各油圧アクチュエータ２０ａ〜２６ａが選択的に駆動されることで、各部（ブーム２０、アーム２１、把持手段２２、旋回装置２３、リフトアーム２４、ローダバケット２５、走行駆動部２６）が動作する。また、ディーゼルエンジン１１により駆動される固定容量型油圧ポンプ１３から吐出される圧油は、操作指令に応じて切り換えられるコントロールバルブ２７ｂを介して、油圧アクチュエータ２７ａに供給されて、油圧アクチュエータ２７ａが駆動されることで、操舵部２７が動作する。   In the configuration shown in FIG. 4, the pressure oil discharged from the variable displacement hydraulic pump 12 driven by the diesel engine 11 corresponds to each corresponding pressure through each control valve 20 b to 26 b that is switched according to each operation command. By being selectively supplied to the hydraulic actuators 20a to 26a and selectively driving each of the hydraulic actuators 20a to 26a, each part (boom 20, arm 21, gripping means 22, turning device 23, lift arm 24, loader) The bucket 25 and the travel drive unit 26) operate. Further, the pressure oil discharged from the fixed displacement hydraulic pump 13 driven by the diesel engine 11 is supplied to the hydraulic actuator 27a via the control valve 27b switched according to the operation command, and the hydraulic actuator 27a is driven. As a result, the steering unit 27 operates.

図５は、本実施形態のホイール式建設機械の運転室４の内部構成を示す図である。図５において、３０、３１、３２は操作レバー、３３はステアリング、３４はシフトレバー、３５はアクセルペダルである。   FIG. 5 is a diagram showing an internal configuration of the cab 4 of the wheel type construction machine of the present embodiment. In FIG. 5, 30, 31 and 32 are operation levers, 33 is a steering wheel, 34 is a shift lever, and 35 is an accelerator pedal.

図５に示す構成において、操作レバー３０は、前後左右の操作で、ブーム２０と把持手段２２に対応するコントロールバルブ２０ｂ、２２ｂを切り換える。操作レバー３１は、前後左右の操作で、アーム２１と旋回装置２３に対応するコントロールバルブ２１ｂ、２３ｂを切り換える。操作レバー３２は、前後左右の操作で、リフトアーム２４とローダバケット２５に対応するコントロールバルブ２４ｂ、２５ｂを切り換える。ステアリング３３は、左右に回すことで、操舵部２７に対応するコントロールバルブ２７ｂを切り換える。シフトレバー３４は前後に操作することで、走行駆動部２６に対応するコントロールバルブ２６ｂの方向を切り換え、アクセルペダル３５は、踏み込み量に応じて、走行駆動部２６に対応するコントロールバルブ２６ｂの流量を制御する。なお、運転室４内には、図示していないがブレーキペダルが設けられており、このブレーキペダルの踏み込みに応じて、図示せぬブレーキ駆動部により走行を抑制制御するようになっている。   In the configuration shown in FIG. 5, the operation lever 30 switches between the control valves 20 b and 22 b corresponding to the boom 20 and the gripping means 22 by front and rear, left and right operations. The operation lever 31 switches the control valves 21b and 23b corresponding to the arm 21 and the turning device 23 by front / rear / right / left operations. The operation lever 32 switches the control valves 24b and 25b corresponding to the lift arm 24 and the loader bucket 25 by front / rear / right / left operations. The steering 33 switches the control valve 27b corresponding to the steering unit 27 by turning left and right. By operating the shift lever 34 back and forth, the direction of the control valve 26b corresponding to the travel drive unit 26 is switched, and the accelerator pedal 35 changes the flow rate of the control valve 26b corresponding to the travel drive unit 26 according to the depression amount. Control. Note that a brake pedal (not shown) is provided in the operator's cab 4, and traveling is suppressed and controlled by a brake drive unit (not shown) in response to depression of the brake pedal.

図６は、産業廃棄物の中間処理場や建設現場などの限られた敷地内において、本実施形態のホイール式建設機械によって、対象物の分別、収集、運搬を行っている様子を示す図である。まず、図６の（ａ）に示すように、バックホウ式作業装置５によって対象物１０３を分別して把持し、把持した対象物１０３をローダ式作業装置２のローダバケット２５に積込み、次に、図６の（ｂ）に示すように、ローダ式作業装置２のローダバケット２５に収集した対象物１０３を積載した状態で、下部走行体Ａにより所定の集積場まで迅速な運搬を行い、次に、図６の（ｃ）に示したように、集積場において、ローダ式作業装置２のローダバケット２５から対象物１０３を落として、集積場に対象物１０３をストックする。   FIG. 6 is a diagram showing a state in which objects are sorted, collected, and transported by the wheel-type construction machine of the present embodiment in a limited site such as an industrial waste intermediate treatment plant or a construction site. is there. First, as shown in FIG. 6 (a), the object 103 is sorted and gripped by the backhoe type work device 5, and the gripped target object 103 is loaded into the loader bucket 25 of the loader type work device 2. 6 (b), with the object 103 collected in the loader bucket 25 of the loader-type work device 2 being loaded, the lower traveling body A carries out a quick transport to a predetermined collection site, As shown in FIG. 6C, in the accumulation field, the object 103 is dropped from the loader bucket 25 of the loader type work device 2, and the object 103 is stocked in the accumulation field.

本実施形態のホイール式建設機械では、先にも述べたように、バックホウ式作業装置５とローダ式作業装置２との協調作業を容易に行うことができるので、図６に示したような対象物の分別、収集、運搬が１台で迅速に行えることとなり、したがって、産業廃棄物の中間処理場や建設現場などの限られた敷地内においては、極めて作業効率の高い建設機械となる。   In the wheel type construction machine of the present embodiment, as described above, the backhoe type work device 5 and the loader type work device 2 can easily perform the cooperative work, so the object as shown in FIG. This makes it possible to quickly separate, collect, and transport objects. Therefore, it is a construction machine with extremely high work efficiency in a limited site such as an intermediate treatment plant for industrial waste or a construction site.

本発明の一実施形態に係るホイール式建設機械の側面から見た外観図である。It is the external view seen from the side of the wheel type construction machine concerning one embodiment of the present invention. 本発明の一実施形態に係るホイール式建設機械の一部を簡略化した底面図である。It is the bottom view which simplified a part of wheel type construction machine concerning one embodiment of the present invention. 本発明の一実施形態に係るホイール式建設機械の上面図である。It is a top view of the wheel type construction machine concerning one embodiment of the present invention. 本発明の一実施形態に係るホイール式建設機械の油圧回路図である。It is a hydraulic circuit diagram of the wheel type construction machine concerning one embodiment of the present invention. 本発明の一実施形態に係るホイール式建設機械の運転室内の構成を示す説明図である。It is explanatory drawing which shows the structure in the cab of the wheel type construction machine which concerns on one Embodiment of this invention. 本発明の一実施形態に係るホイール式建設機械による作業の様子を示す説明図である。It is explanatory drawing which shows the mode of the operation | work by the wheel type construction machine which concerns on one Embodiment of this invention. 従来の対象物の分別、収集、運搬の作業の様子を示す説明図である。It is explanatory drawing which shows the mode of the operation | work of the conventional object classification, collection, and conveyance.

符号の説明Explanation of symbols

Ａ……下部走行体、Ｂ……上部旋回体、１……走行装置、２……ローダ式作業装置（第１作業装置）、３……駆動システム、４……運転室、５……バックホウ式作業装置（第２作業装置）、１１……ディーゼルエンジン、１２……可変容量型油圧ポンプ、１３……固定容量型油圧ポンプ、１４……アンロード弁、２０……ブーム、２１……アーム、２２……把持手段、２３……旋回装置、２４……リフトアーム、２５……ローダバケット、２６……走行駆動部、２７……操舵部、２０ａ〜２７ａ……油圧アクチュエータ、２０ｂ〜２７ｂ……コントロールバルブ、２８Ａ……前輪、２８Ｂ……後輪、２９……車体、３０〜３２……操作レバー、３３……ステアリング、３４……シフトレバー、３５……アクセルペダル。   A ... Lower traveling body, B ... Upper turning body, 1 ... Traveling device, 2 ... Loader type working device (first working device), 3 ... Drive system, 4 ... Driver's cab, 5 ... Backhoe Type working device (second working device), 11 ... diesel engine, 12 ... variable displacement hydraulic pump, 13 ... fixed displacement hydraulic pump, 14 ... unload valve, 20 ... boom, 21 ... arm , 22 ... gripping means, 23 ... turning device, 24 ... lift arm, 25 ... loader bucket, 26 ... travel drive unit, 27 ... steering unit, 20a to 27a ... hydraulic actuator, 20b to 27b ... ... control valve, 28A ... front wheel, 28B ... rear wheel, 29 ... vehicle body, 30-32 ... control lever, 33 ... steering, 34 ... shift lever, 35 ... accelerator pedal.

Claims (4)

ホイール式の走行装置と、該走行装置により移動が可能な下部走行体と、該下部走行体の前部に上下動可能に取り付けられ、バケットにより対象物の収集と運搬が可能な第１作業装置と、前記下部走行体上に旋回可能に取り付けられた上部旋回体と、該上部旋回体の前部に上下動可能に取り付けられ、把持手段やバケット等により対象物の分別収集が可能な第２作業装置とを、有するホイール式建設機械において、
前記上部旋回体の旋回中心を、前記下部走行体の略中央に設けたことを特徴とするホイール式建設機械。 A wheel-type traveling device, a lower traveling body that can be moved by the traveling device, and a first working device that is attached to a front portion of the lower traveling body so as to be movable up and down and that can collect and transport objects by a bucket. An upper revolving body attached to the lower traveling body so as to be able to turn, and a second revolving body attached to the front portion of the upper revolving body so as to be movable up and down and capable of separating and collecting objects by a gripping means or a bucket. In a wheel-type construction machine having a working device,
A wheel-type construction machine, wherein a turning center of the upper revolving structure is provided at a substantially center of the lower traveling structure. 請求項１に記載のホイール式建設機械において、
前記上部旋回体の旋回半径を、前記下部走行体の車幅の範囲内に収めたことを特徴とするホイール式建設機械。 In the wheel type construction machine according to claim 1,
A wheel type construction machine characterized in that a turning radius of the upper turning body is within a vehicle width range of the lower traveling body. ホイール式の走行装置と、該走行装置により移動が可能な下部走行体と、該下部走行体の前部に上下動可能に取り付けられ、バケットにより対象物の収集と運搬が可能な第１作業装置と、前記下部走行体上に旋回可能に取り付けられた上部旋回体と、該上部旋回体の前部に上下動可能に取り付けられ、把持手段やバケット等により対象物の分別収集が可能な第２作業装置とを、有するホイール式建設機械において、
前記下部走行体は、後輪側だけを操舵可能とされたことを特徴とするホイール式建設機械。 A wheel-type traveling device, a lower traveling body that can be moved by the traveling device, and a first working device that is attached to a front portion of the lower traveling body so as to be movable up and down and that can collect and transport objects by a bucket. An upper revolving body attached to the lower traveling body so as to be able to turn, and a second revolving body attached to the front portion of the upper revolving body so as to be movable up and down and capable of separating and collecting objects by a gripping means or a bucket. In a wheel-type construction machine having a working device,
A wheel type construction machine characterized in that the lower traveling body can be steered only on the rear wheel side. ホイール式の走行装置と、該走行装置により移動が可能な下部走行体と、該下部走行体の前部に上下動可能に取り付けられ、バケットにより対象物の収集と運搬が可能な第１作業装置と、前記下部走行体上に旋回可能に取り付けられた上部旋回体と、該上部旋回体の前部に上下動可能に取り付けられ、把持手段やバケット等により対象物の分別収集が可能な第２作業装置とを、有するホイール式建設機械において、
前記上部旋回体の旋回中心を、前記下部走行体の略中央に設け、前記下部走行体は、後輪側だけを操舵可能とされたことを特徴とするホイール式建設機械。 A wheel-type traveling device, a lower traveling body that can be moved by the traveling device, and a first working device that is attached to a front portion of the lower traveling body so as to be movable up and down and that can collect and transport objects by a bucket. An upper revolving body attached to the lower traveling body so as to be able to turn, and a second revolving body attached to the front portion of the upper revolving body so as to be movable up and down and capable of separating and collecting objects by a gripping means or a bucket. In a wheel-type construction machine having a working device,
A wheel type construction machine, wherein a turning center of the upper swing body is provided at a substantially center of the lower travel body, and the lower travel body can be steered only on a rear wheel side.
JP2004171377A 2004-06-09 2004-06-09 Wheeled construction machine Expired - Fee Related JP4227936B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2449739A (en) * 2007-05-26 2008-12-03 Bamford Excavators Ltd Method of Operating a Working Machine having an Implement Holding Device
GB2449740A (en) * 2007-05-26 2008-12-03 Bamford Excavators Ltd Method of Operating a Working Machine without Repositioning
US7891933B2 (en) 2007-05-26 2011-02-22 J.C. Bamford Excavators Limited Working machine
JP2013023859A (en) * 2011-07-19 2013-02-04 Kobelco Contstruction Machinery Ltd Work machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2449739A (en) * 2007-05-26 2008-12-03 Bamford Excavators Ltd Method of Operating a Working Machine having an Implement Holding Device
GB2449740A (en) * 2007-05-26 2008-12-03 Bamford Excavators Ltd Method of Operating a Working Machine without Repositioning
US7891933B2 (en) 2007-05-26 2011-02-22 J.C. Bamford Excavators Limited Working machine
US7922438B2 (en) 2007-05-26 2011-04-12 J.C. Bamford Excavators Limited Method of operating a working machine
US8075241B2 (en) 2007-05-26 2011-12-13 J.C. Bamford Excavators Limited Method of operating a working machine
GB2449739B (en) * 2007-05-26 2011-12-28 Bamford Excavators Ltd Method of operating a working machine
GB2449740B (en) * 2007-05-26 2011-12-28 Bamford Excavators Ltd Method of operating a working machine
JP2013023859A (en) * 2011-07-19 2013-02-04 Kobelco Contstruction Machinery Ltd Work machine

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