JP2014214537A - Front attachment structure of small-size dual-armed work machine - Google Patents

Front attachment structure of small-size dual-armed work machine Download PDF

Info

Publication number
JP2014214537A
JP2014214537A JP2013094178A JP2013094178A JP2014214537A JP 2014214537 A JP2014214537 A JP 2014214537A JP 2013094178 A JP2013094178 A JP 2013094178A JP 2013094178 A JP2013094178 A JP 2013094178A JP 2014214537 A JP2014214537 A JP 2014214537A
Authority
JP
Japan
Prior art keywords
bracket
work
front mounting
attached
arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2013094178A
Other languages
Japanese (ja)
Other versions
JP5847756B2 (en
Inventor
一晶 奥田
Kazuaki Okuda
一晶 奥田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP2013094178A priority Critical patent/JP5847756B2/en
Priority to CN201410164410.XA priority patent/CN104120744A/en
Publication of JP2014214537A publication Critical patent/JP2014214537A/en
Application granted granted Critical
Publication of JP5847756B2 publication Critical patent/JP5847756B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Manipulator (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a front attachment structure of a small-size dual-armed work machine, which enables the compact and easy installation of a hydraulic cylinder for front oscillation and which enables the work machine to be configured in a smaller size.SOLUTION: A front attachment frame 9 provided in a front part of a revolving super structure is provided with a bracket 11 that has front attachment parts provided on right and left sides. Right and left working fronts 15B and 15A are each attached in a horizontally swingable manner to an upper part of the bracket 11. Hydraulic cylinders 18B and 18A, which swing the right and left working fronts 15B and 15A, respectively, are attached sideways in such a manner as to longitudinally adjoin to each other, to the upper part of the bracket 11.

Description

本発明は、上部旋回体に２つの作業用フロントを取付けてなる小型双腕作業機におけるフロント取付け構造に関する。   The present invention relates to a front mounting structure in a small dual arm working machine in which two working fronts are mounted on an upper swing body.

双腕作業機は、上部旋回体に２本の作業用フロントを備えて構成され、例えば解体作業に用いる場合には、一方の作業用フロントに作業具としてホーク等の把持装置を取付け、他方の作業用フロントにカッタや破砕具を取付ける。そして一方の作業用フロントに取付けた把持装置で解体対象物を把持し、他方の作業用フロントに取付けたカッタまたは破砕具により切断あるいは破砕する。   The double-arm work machine is configured to include two work fronts on the upper swing body. For example, when used for dismantling work, a gripping device such as a hawk is attached to one work front as a work tool, Attach cutters and crushing tools to the work front. Then, the dismantling object is gripped by a gripping device attached to one work front, and cut or crushed by a cutter or a crushing tool attached to the other work front.

このような双腕作業機として、特許文献１に記載のものがある。この特許文献１に記載の双腕作業機は、作業用フロントを取付けるフレームを上部旋回体の前部に前方に突出させて設け、各取付けフレームに設けた縦軸を中心として油圧シリンダにより左右に揺動可能に取付けている。各作業用フロントの揺動用油圧シリンダは、各取付けフレームの左右に相互に離して取付けられている。   There exists a thing of patent document 1 as such a double arm working machine. In the double-arm work machine described in Patent Document 1, a frame for attaching a work front is provided so as to protrude forward at the front part of the upper swing body, and left and right by a hydraulic cylinder with a vertical axis provided on each mounting frame as a center. It is mounted so that it can swing. The hydraulic cylinders for swinging of each work front are attached to the left and right of each mounting frame so as to be separated from each other.

特開２０１２−６１３２号公報JP 2012-6132 A

前述のように、従来の双腕作業機においては、上部旋回体に設けた取付けフレームの左右に互いに離して揺動用油圧シリンダを取付けている。しかしながら、建屋内や地下で用いる小型双腕作業機の場合、フロント取付け部のスペースも狭く、その上、フロント取付け部である上部旋回体の前部には、油圧配管等も集約して配置されるため、前述した従来構造ではフロント揺動用油圧シリンダの取付けが困難になり、狭い作業空間で作業する小型双腕作業機の実現が困難となる。   As described above, in the conventional double-arm working machine, the swing hydraulic cylinders are attached to the left and right of the mounting frame provided on the upper swing body. However, in the case of a small double-arm work machine used in a building or underground, the space for the front mounting part is narrow, and in addition, hydraulic piping and the like are also arranged at the front part of the upper swing body that is the front mounting part. For this reason, the conventional structure described above makes it difficult to mount the hydraulic cylinder for swinging the front, and it is difficult to realize a small double-arm working machine that works in a narrow work space.

本発明は、上記問題点に鑑み、フロント揺動用油圧シリンダをコンパクトにかつ容易に設置することができ、作業機をより小型に構成できる小型双腕作業機のフロント取付け構造を提供することを目的とする。   The present invention has been made in view of the above problems, and an object thereof is to provide a front mounting structure for a small two-arm work machine in which a front swing hydraulic cylinder can be installed compactly and easily, and the work machine can be configured more compactly. And

請求項１の小型双腕作業機のフロント取付け構造は、上部旋回体の前部に設けたフロント取付けフレームに、左右にフロント取付け部を有するブラケットを設け、
前記ブラケットの上部の左右に、左右の作業用フロントをそれぞれ左右方向に揺動可能に取付け、
前記ブラケットの上部に、左右の作業用フロントをそれぞれ揺動させる油圧シリンダを、横向きにかつ前後に隣接させて取付けたことを特徴とする。 In the front mounting structure for a small dual-arm working machine according to claim 1, brackets having front mounting portions on the left and right sides are provided on the front mounting frame provided at the front of the upper swing body,
The left and right work fronts are attached to the left and right of the upper part of the bracket so as to be swingable in the left and right directions,
A hydraulic cylinder for swinging the left and right working fronts is attached to the upper part of the bracket in a lateral direction and adjacent to the front and rear.

請求項２の小型双腕作業機のフロント取付け構造は、請求項１に記載の小型双腕作業機のフロント取付け構造において、
前記フロント取付けフレームに前記ブラケットをピンより取付ける構造とし、
前記ピンより、前記作業用フロントを前記ブラケットに起伏可能に取付けるピンの位置を高くしたことを特徴とする。 The front mounting structure for a small double arm working machine according to claim 2 is the front mounting structure for a small double arm working machine according to claim 1,
The bracket is attached to the front mounting frame from a pin,
The position of the pin which attaches the working front to the bracket so that it can be raised and lowered is made higher than the pin.

請求項３の小型双腕作業機のフロント取付け構造は、請求項２に記載の小型双腕作業機のフロント取付け構造において、
前記フロント取付けフレームに前記ブラケットを取付けるピンを縦並びに配置する２本のピンにより構成したことを特徴とする。 The front mounting structure for a small double arm working machine according to claim 3 is the front mounting structure for a small double arm working machine according to claim 2,
The pin for attaching the bracket to the front mounting frame is constituted by two pins arranged vertically.

請求項１の発明によれば、左右の作業用フロントをそれぞれ揺動させる油圧シリンダを、ブラケット上で横向きに、かつ前後に隣接させて取付けたので、油圧シリンダの設置スペースを狭くすることができる。また、油圧シリンダを横向きに取付けたので、ブラケットの前後長を短くすることができる。このため、全長が短い双腕作業機を実現させることができるので、建屋内や地下空間等における狭い作業空間で小回りのきく小型の双腕作業機を実現することができる。   According to the first aspect of the present invention, since the hydraulic cylinders that respectively swing the left and right working fronts are mounted sideways on the bracket and adjacent to the front and rear, the installation space for the hydraulic cylinders can be reduced. . Further, since the hydraulic cylinder is mounted sideways, the front and rear length of the bracket can be shortened. For this reason, since a double-arm work machine with a short overall length can be realized, it is possible to realize a small double-arm work machine that can be turned in a narrow work space such as in a building or underground space.

請求項２の発明によれば、左右の作業用フロントをブラケットに起伏可能に取付けるピンを、フロント取付けフレームにブラケットを取付けるピンより高い位置に設定したので、作業用フロントをブラケットに取付けるピンより下方に多関節構造の作業用フロントの格納空間を確保することができる。このため、作業用フロントを低い位置で折り畳んだ低い姿勢で走行させることが可能となり、狭い空間での移動が行え、また、作業時には、作業フロントの到達高さを高くすることができるため十分な作業高さを確保でき、作業に好適な双腕作業機を実現できる。また、作業用フロントが折り畳むように曲げられるため、作業用フロントを含めた作業機の全長を短くでき、さらに前方向での最小作業半径も小さくできるため、狭い作業スペースでの作業、走行が可能となり、小回りが利く双腕作業機が実現できる。   According to the second aspect of the present invention, the pins for attaching the left and right working fronts to the brackets are set higher than the pins for attaching the brackets to the front mounting frame. In addition, it is possible to secure a storage space for a multi-joint work front. For this reason, it is possible to run the work front in a low position folded at a low position, it is possible to move in a narrow space, and at the time of work it is sufficient because the reach height of the work front can be increased A working height can be secured and a double-arm working machine suitable for work can be realized. In addition, since the work front is bent so that it can be folded, the overall length of the work implement including the work front can be shortened, and the minimum working radius in the forward direction can be reduced, allowing work and travel in a narrow work space. Thus, a double-arm work machine with a small turn can be realized.

請求項３の発明によれば、フロント取付けフレームにブラケットを取付けるピンを、縦並びに配置したので、フロント取付けフレームおよびブラケットの前後幅を狭くすることが可能となり、前後長がさらに短い小型双腕作業機を実現することができる。   According to the invention of claim 3, since the pins for attaching the brackets to the front mounting frame are arranged vertically, it is possible to narrow the front and rear widths of the front mounting frame and the brackets, and the small double-arm work with a shorter front and rear length. Machine can be realized.

本発明の一実施の形態を示す双腕作業機の側面図である。It is a side view of the double arm working machine which shows one embodiment of this invention. 図１の双腕作業機の平面図である。It is a top view of the double arm working machine of FIG. この実施の形態のフロント取付け構造を示す斜視図である。It is a perspective view which shows the front attachment structure of this embodiment. この実施の形態における旋回フレームを示す斜視図である。It is a perspective view which shows the turning frame in this embodiment. この実施の形態におけるブラケットとフロント揺動用油圧シリンダの取付け構造を示す斜視図である。It is a perspective view which shows the attachment structure of the bracket and hydraulic cylinder for front rocking | fluctuation in this embodiment. この実施の形態における作業用フロントのブラケットに対する取付け部の構造を示す一部断面側面図である。It is a partial cross section side view which shows the structure of the attaching part with respect to the bracket of the work front in this embodiment. この実施の形態における走行時の作業用フロントの姿勢を示す双腕作業機の側面図である。It is a side view of the double arm working machine which shows the attitude | position of the work front at the time of driving | running | working in this embodiment.

図１は本発明の一実施の形態を示す双腕作業機の側面図、図２はその平面図である。この実施の形態の双腕作業機は無線操作によって制御されるものについて示している。１は履帯式下部走行体、２はこの下部走行体１上に旋回装置３を介して設置した上部旋回体である。上部旋回体２は旋回フレーム２ａ上に建屋４を設置し、建屋４内にエンジンや油圧ポンプ等を含むパワーユニット５やコントロール弁(図示せず)等を搭載して構成される。建屋４上にはオペレータが持つ送信機(図示せず)からの操作信号を受けて走行、旋回、フロント操作を行なう受信機付きコントローラ６が搭載される。７は下部走行体１のフレームに上下動可能に取付けた排土板である。   FIG. 1 is a side view of a double-arm working machine showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. The double-arm working machine of this embodiment is shown as being controlled by wireless operation. 1 is a crawler type lower traveling body, and 2 is an upper revolving body installed on the lower traveling body 1 via a revolving device 3. The upper swing body 2 is configured by installing a building 4 on a swing frame 2a and mounting a power unit 5 including an engine, a hydraulic pump, etc., a control valve (not shown), and the like in the building 4. On the building 4 is mounted a controller 6 with a receiver that receives an operation signal from a transmitter (not shown) of the operator and performs running, turning, and front operation. Reference numeral 7 denotes an earth discharging plate attached to the frame of the lower traveling body 1 so as to be movable up and down.

９は旋回フレーム２ａの前部に旋回フレーム２ａと一体に設けたフロント取付けフレームである。図３、図４の斜視図に示すように、このフロント取付けフレーム９は、旋回フレーム２ａに含まれる左右の縦板２ｂ，２ｂの前部を上方に立ち上げて形成されている。   Reference numeral 9 denotes a front mounting frame provided integrally with the turning frame 2a at the front portion of the turning frame 2a. As shown in the perspective views of FIGS. 3 and 4, the front mounting frame 9 is formed by raising the front portions of the left and right vertical plates 2b, 2b included in the turning frame 2a upward.

１１はこれらのフロント取付けフレーム９，９に取付けられるフロント取付け用ブラケットである。図５に示すように、このブラケット１１は、２枚の脚板１１ａを有し、これらの脚板１１ａにそれぞれ上下にピン孔１１ｂ、１１ｂを有する。図３に示すように、このブラケット１１の２枚の脚板１１ａ，１１ａは、フロント取付けフレーム９，９間に挿入され、上下２本のピン１２，１２をフロント取付けフレーム９のピン孔９ａ，９ａとブラケット１１のピン孔１１ｂ，１１ｂに挿着してブラケット１１がフロント取付けフレーム９，９に取付けられる。   Reference numeral 11 denotes a front mounting bracket attached to the front mounting frames 9 and 9. As shown in FIG. 5, the bracket 11 has two leg plates 11a, and the leg plates 11a have pin holes 11b and 11b on the upper and lower sides, respectively. As shown in FIG. 3, the two leg plates 11 a and 11 a of the bracket 11 are inserted between the front mounting frames 9 and 9, and the upper and lower two pins 12 and 12 are connected to the pin holes 9 a and 9 a of the front mounting frame 9. The bracket 11 is attached to the front mounting frames 9, 9 by being inserted into the pin holes 11b, 11b of the bracket 11.

図５に示すように、ブラケット１１の上部には左右に長くボックス状に形成されたフロント取付け部１１ｃを有し、その左右の端部に円筒状の軸受１３Ａ，１３Ｂが固着されている。１４Ａ，１４Ｂはそれぞれ左右の作業用フロント１５Ａ，１５Ｂ（図３参照）をそれぞれ左右に揺動可能に取付ける揺動ブラケットである。これらの揺動ブラケット１４Ａ，１４Ｂは、これらに取付けた縦軸１６Ａ，１６Ｂを軸受１３Ａ，１３Ｂに回動可能に内嵌することにより、ブラケット１１に左右に揺動可能に取付けられる。   As shown in FIG. 5, the bracket 11 has a front mounting portion 11c formed in a box shape on the left and right sides, and cylindrical bearings 13A and 13B are fixed to the left and right ends thereof. Reference numerals 14A and 14B denote swing brackets for mounting left and right work fronts 15A and 15B (see FIG. 3) so as to be swingable to the left and right, respectively. These swing brackets 14A and 14B are attached to the bracket 11 so as to be swingable left and right by fitting the longitudinal axes 16A and 16B attached thereto to the bearings 13A and 13B so as to be rotatable.

図５において、１８Ａ，１８Ｂはそれぞれ左右の作業用フロント１５Ａ，１５Ｂを揺動させる油圧シリンダである。１９はシリンダ取付け板であり、このシリンダ取付け板１９は、ブラケット１１のフロント取付け部１１ｃの上面にこの上面と間隔を有して固定される。油圧シリンダ１８Ａ，１８Ｂの一端は、フロント取付け部１１ｃとシリンダ取付け板１９との間に取付けたピン２０Ａ，２０Ｂにより、ブラケット１１に連結される。油圧シリンダ１８Ａ，１８Ｂの他端は、揺動ブラケット１４Ａ，１４Ｂにそれぞれ固着した平行板状の連結部２１Ａ，２１Ｂにピン２２Ａ，２２Ｂにより連結される。したがって、油圧シリンダ１８Ａ，１８Ｂの伸縮により、揺動ブラケット１４Ａ，１４Ｂが左右に揺動する。   In FIG. 5, 18A and 18B are hydraulic cylinders that swing the left and right working fronts 15A and 15B, respectively. Reference numeral 19 denotes a cylinder mounting plate. The cylinder mounting plate 19 is fixed to the upper surface of the front mounting portion 11c of the bracket 11 with a space from the upper surface. One ends of the hydraulic cylinders 18A and 18B are connected to the bracket 11 by pins 20A and 20B attached between the front attachment portion 11c and the cylinder attachment plate 19. The other ends of the hydraulic cylinders 18A and 18B are connected by pins 22A and 22B to parallel plate-like connecting portions 21A and 21B fixed to the swing brackets 14A and 14B, respectively. Therefore, the swing brackets 14A and 14B swing left and right by the expansion and contraction of the hydraulic cylinders 18A and 18B.

油圧シリンダ１８Ａ，１８Ｂは、左右の幅方向に対してやや傾斜させて横向きに取付けられると共に、油圧シリンダ１８Ａ，１８Ｂは前後に隣接させて取付けられる。   The hydraulic cylinders 18A and 18B are attached sideways while being slightly inclined with respect to the left and right width directions, and the hydraulic cylinders 18A and 18B are attached adjacent to each other in the front-rear direction.

図１〜図３に示すように、左右の作業用フロント１５Ａ，１５Ｂは、ブーム２４Ａ，２４Ｂとアーム２６Ａ，２６Ｂとを有する多関節構造を有する。ブーム２４Ａ，２４Ｂは、揺動ブラケット１４Ａ，１４Ｂにそれぞれピン２３Ａ，２３Ｂにより起伏可能に取付けられる。アーム２６Ａ，２６Ｂは、それぞれブーム２４Ａ，２４Ｂに対してピン２５Ａ，２５Ｂにより回動可能に連結される。ブーム２４Ａ，２４Ｂをそれぞれ起伏させる油圧シリンダ２７Ａ．２７Ｂは、各一端をそれぞれ揺動ブラケット１４Ａ，１４Ｂにそれぞれピン２８Ａ，２８Ｂにより連結し、他端をそれぞれピン２９Ａ，２９Ｂによりブーム２４Ａ，２４Ｂに連結して取付けられる。３０Ａ，３０Ｂはブーム２４Ａ，２４Ｂに対してアーム２６Ａ，２６Ｂを回動させる油圧シリンダである。   As shown in FIGS. 1 to 3, the left and right working fronts 15A and 15B have a multi-joint structure having booms 24A and 24B and arms 26A and 26B. The booms 24A and 24B are attached to the swing brackets 14A and 14B by pins 23A and 23B, respectively, so that they can be raised and lowered. The arms 26A and 26B are rotatably connected to the booms 24A and 24B by pins 25A and 25B, respectively. Hydraulic cylinders 27A. For raising and lowering the booms 24A and 24B, respectively. 27B is attached with one end connected to the swing brackets 14A and 14B via pins 28A and 28B, and the other end connected to the booms 24A and 24B via pins 29A and 29B, respectively. 30A and 30B are hydraulic cylinders that rotate the arms 26A and 26B with respect to the booms 24A and 24B.

３１Ａ，３１Ｂはそれぞれアーム２６Ａ，２６Ｂの先端にピン３２Ａ，３２Ｂを中心として油圧シリンダ３３Ａ，３３Ｂにより回動可能に取付けられた作業具取付け用のブラケットである。この例では解体を行なうため、図１に示すように一方のブラケット３１Ａに旋回装置３４を介してカッタ３５を取付けており、他方には例えばホーク等の把持具(図示せず)が取付けられる。解体を行なう場合、カッタ３５の代わりに高速回転カッタが取付ける場合もある。その他、作業目的に応じた作業具が作業具取付け用のブラケット３１Ａ，３１Ｂに取付けられる。   Reference numerals 31A and 31B denote work tool mounting brackets which are rotatably mounted on the tips of the arms 26A and 26B by hydraulic cylinders 33A and 33B around the pins 32A and 32B, respectively. In this example, in order to disassemble, a cutter 35 is attached to one bracket 31A via a turning device 34 as shown in FIG. 1, and a gripping tool (not shown) such as a hawk is attached to the other. When disassembling, a high-speed rotating cutter may be attached instead of the cutter 35. In addition, work tools according to the work purpose are attached to the work tool mounting brackets 31A and 31B.

３６Ａ，３６Ｂはそれぞれ左右の作業用フロント１５Ａ，１５Ｂの油圧式アクチュエータ(油圧シリンダ２７Ａ，２７Ｂ，３０Ａ，３０Ｂ，３３Ａ，３３Ｂおよび旋回装置３４や作業具をそれぞれ作動させる不図示の油圧式アクチュエータ)に作動油を供給する油圧ホースを収容した可撓性を有する筒状カバーである。３７は旋回フレーム２ａの前部に取付けられた回転式継手であり、カバー３６Ａ，３６Ｂ内の油圧ホースの基端部が接続されるものである。これらのカバー３６Ａ，３６Ｂ、すなわち作業用フロント１５Ａ，１５Ｂの油圧式アクチュエータに作動油を供給する油圧ホースを、作業用フロント１５Ａ，１５Ｂの内側すなわち相互の対向面に取付けている。   36A and 36B are hydraulic actuators for the left and right working fronts 15A and 15B (hydraulic cylinders 27A, 27B, 30A, 30B, 33A and 33B, and hydraulic actuators (not shown for operating the swiveling device 34 and the work implement, respectively)). It is a flexible cylindrical cover that accommodates a hydraulic hose that supplies hydraulic oil. Reference numeral 37 denotes a rotary joint attached to the front portion of the swivel frame 2a, to which a base end portion of a hydraulic hose in the covers 36A and 36B is connected. These covers 36A, 36B, that is, hydraulic hoses for supplying hydraulic oil to the hydraulic actuators of the working fronts 15A, 15B are attached to the inner sides of the working fronts 15A, 15B, that is, on the surfaces facing each other.

このように、カバー３６Ａ，３６Ｂに収容される油圧ホースを作業用フロント１５Ａ，１５Ｂの内側に取付ける理由は、油圧ホースの作業中における損傷を防止するためである。すなわち、旋回装置３の作動により上部旋回体２を旋回させる際や、作業用フロント１５Ａ，１５Ｂを左右に揺動させるかあるいは上方に動かした際に、作業用フロント１５Ａ，１５Ｂに添設する油圧ホースが障害物に衝突して損傷することを防止するためである。また、回転式継手３７を用いて作業用フロント１５Ａ，１５Ｂに添設する油圧ホースを接続することにより、油圧ホースに捻れ等により過大な力が作用することを防ぎ、油圧ホースの損傷防止を図っている。   Thus, the reason for attaching the hydraulic hoses accommodated in the covers 36A and 36B to the inside of the work fronts 15A and 15B is to prevent the hydraulic hoses from being damaged during the work. That is, when the upper swing body 2 is turned by the operation of the turning device 3, or when the work fronts 15A and 15B are swung to the left or right or moved upward, the hydraulic pressure attached to the work fronts 15A and 15B. This is to prevent the hose from colliding with an obstacle and being damaged. In addition, by connecting the hydraulic hose attached to the work front 15A, 15B using the rotary joint 37, it is possible to prevent excessive force from acting on the hydraulic hose due to twisting, etc., and to prevent damage to the hydraulic hose. ing.

図６において、３９は作業用フロント１５Ａの左右の揺動角を検出する揺動角検出センサであり、この揺動角センサ３９は揺動ブラケット１４Ａの縦軸１６Ａ上に縦軸１６Ａと同心に取付けられている。また、４０は作業用フロント１５Ａのブーム２４Ａの起伏角を検出するブーム角度センサ、４１はブーム２４Ａに対するアーム２６Ａの角度を検出するアーム角度センサである。これらの角度センサ４０，４１はブーム２４Ａのフート部の背面に取付けられている。   In FIG. 6, reference numeral 39 denotes a swing angle detection sensor for detecting the left and right swing angles of the work front 15A. The swing angle sensor 39 is concentric with the vertical axis 16A on the vertical axis 16A of the swing bracket 14A. Installed. Reference numeral 40 denotes a boom angle sensor that detects the undulation angle of the boom 24A of the work front 15A. Reference numeral 41 denotes an arm angle sensor that detects the angle of the arm 26A relative to the boom 24A. These angle sensors 40 and 41 are attached to the back surface of the foot part of the boom 24A.

なお、アーム角度センサ４１は、図１に示すように、その検出レバー４１ａを、ブーム２４Ａの側面に軸４２を中心として回動可能に取付けた中継リンク４３の一端にロッド４４により連結し、中継リンク４３の他端を、ロッド４５によりアーム２６Ａにより連結している。作業用フロント１５Ｂにも同様の構造で角度センサ３９，４０，４１が取付けられる。   As shown in FIG. 1, the arm angle sensor 41 has a detection lever 41a connected by a rod 44 to one end of a relay link 43 attached to the side surface of the boom 24A so as to be rotatable about a shaft 42. The other end of the link 43 is connected to the arm 26 </ b> A by a rod 45. Angle sensors 39, 40, and 41 are attached to the work front 15B with the same structure.

小型双腕作業機の場合、ピン２３Ａ、２５Ａの近傍の狭いスペースに角度センサを設置する場合に比較し、この実施の形態で示すように、ブーム角度センサ４０やアーム角度センサ４１を図１に示すようにブーム２４Ａのフート部の背面に取付けることにより、角度センサ４０，４１を容易に設置することが可能となる。   In the case of a small dual-arm work machine, as shown in this embodiment, the boom angle sensor 40 and the arm angle sensor 41 are shown in FIG. 1 as compared with the case where the angle sensor is installed in a narrow space near the pins 23A and 25A. As shown in the figure, the angle sensors 40 and 41 can be easily installed by attaching to the back surface of the foot part of the boom 24A.

上述のように、この実施の形態においては、左右の作業用フロント１５Ａ，１５Ｂをそれぞれ揺動させる油圧シリンダ１８Ａ，１８Ｂを、ブラケット１１上で横向きに、かつ前後に隣接させて取付けたので、油圧シリンダ１８Ａ，１８Ｂの設置スペースを狭くすることができる。また、油圧シリンダ１８Ａ，１８Ｂを横向きに取付けたので、ブラケット１１の前後長を短くすることができる。このため、全長が短い双腕作業機を実現させることができるので、建屋内や地下空間等における狭い作業空間で小回りのきく小型の双腕作業機を実現することができる。   As described above, in this embodiment, the hydraulic cylinders 18A and 18B for swinging the left and right working fronts 15A and 15B are mounted sideways on the bracket 11 and adjacent to each other in the front-rear direction. The installation space for the cylinders 18A and 18B can be reduced. Moreover, since the hydraulic cylinders 18A and 18B are attached sideways, the front and rear length of the bracket 11 can be shortened. For this reason, since a double-arm work machine with a short overall length can be realized, it is possible to realize a small double-arm work machine that can be turned in a narrow work space such as in a building or underground space.

さらにこの実施の形態によれば、左右の作業用フロント１５Ａ，１５Ｂをブラケット１１に起伏可能に取付けるピン２３Ａ，２３Ｂを、フロント取付けフレーム９にブラケット１１を取付けるピン１２より高い位置に設定したので、ピン２３Ａ，２３Ｂより下方に多関節構造の作業用フロント１５Ａ，１５Ｂの格納空間を確保することができる。このため、図７に示すように、多関節構造の作業用フロント１５Ａ，１５Ｂを低い位置で折り畳むようにした低い姿勢で走行、旋回させることが可能となり、フロント高さを低くして狭小な場所、空間での移動が可能になり、さらに作業時には、作業用フロントを高い位置まで到達させることができ、作業高さを十分確保した作業に好適な双腕作業機を実現できる。   Further, according to this embodiment, the pins 23A and 23B for attaching the left and right work fronts 15A and 15B to the bracket 11 so as to be able to undulate are set at positions higher than the pins 12 for attaching the bracket 11 to the front attachment frame 9. A storage space for the multi-joint work fronts 15A and 15B can be secured below the pins 23A and 23B. For this reason, as shown in FIG. 7, it becomes possible to run and turn the work fronts 15A and 15B having a multi-joint structure in a low posture so that they are folded at a low position. In addition, it is possible to move in the space, and at the time of work, the work front can reach a high position, and a double-arm work machine suitable for work with sufficient work height can be realized.

また、作業用フロント１５Ａ，１５Ｂが折り畳むように曲げられるため、作業用フロントを含めた作業機の全長を短くした状態で走行することができ、狭い作業スペースでも小回りが利く双腕作業機が実現できる。   In addition, since the work fronts 15A and 15B are bent so that they can be folded, the overall length of the work machine including the work front can be shortened, and a double-arm work machine with a small turn in a narrow work space is realized. it can.

また、フロント取付けフレーム９にブラケット１１を取付ける２本のピン１２，１２を縦に配置したので、フロント取付けフレーム９およびブラケット１１の前後幅を狭くすることが可能となり、より前後長が短い最小作業半径の小さい小型双腕作業機を実現することができる   In addition, since the two pins 12 and 12 for attaching the bracket 11 to the front mounting frame 9 are vertically arranged, the front and rear widths of the front mounting frame 9 and the bracket 11 can be reduced, and the minimum work with a shorter front and rear length is possible. A small double-arm work machine with a small radius can be realized.

上記実施の形態においては、動力源がエンジンである場合について説明したが、動力源が電動機で被駆動回転体が油圧ポンプである場合にも本発明を適用することができる。また、本発明は、無線操作式等の遠隔操作式の双腕作業機のみならず、運転席を有する双腕作業機にも適用できる。その他、上記の実施の形態に限らず、本発明の要旨を逸脱しない範囲において、種々の変更、付加が可能である。   Although the case where the power source is an engine has been described in the above embodiment, the present invention can also be applied to a case where the power source is an electric motor and the driven rotating body is a hydraulic pump. In addition, the present invention can be applied not only to a remotely operated double-arm work machine such as a wireless operation type but also to a double-arm work machine having a driver's seat. In addition, the present invention is not limited to the above embodiment, and various changes and additions can be made without departing from the scope of the present invention.

１：履帯式下部走行体、２：上部旋回体、２ａ：旋回フレーム、３：旋回装置、４：建屋、５：パワーユニット、６：コントローラ、９：フロント取付けフレーム、１１：フロント取付け用ブラケット、１２：ピン、１３Ａ，１３Ｂ：軸受、１４Ａ，１４Ｂ：揺動ブラケット、１５Ａ，１５Ｂ：作業用フロント、１８Ａ，１８Ｂ：揺動用油圧シリンダ、２３Ａ，２３Ｂ：ピン 1: crawler type lower traveling body, 2: upper turning body, 2a: turning frame, 3: turning device, 4: building, 5: power unit, 6: controller, 9: front mounting frame, 11: front mounting bracket, 12 : Pin, 13A, 13B: Bearing, 14A, 14B: Swing bracket, 15A, 15B: Work front, 18A, 18B: Swing hydraulic cylinder, 23A, 23B: Pin

Claims (3)

上部旋回体の前部に設けたフロント取付けフレームに、左右にフロント取付け部を有するブラケットを設け、
前記ブラケットの上部の左右に、左右の作業用フロントをそれぞれ左右方向に揺動可能に取付け、
前記ブラケットの上部に、左右の作業用フロントをそれぞれ揺動させる油圧シリンダを、横向きにかつ前後に隣接させて取付けたことを特徴とする小型双腕作業機のフロント取付け構造。 A bracket having front mounting portions on the left and right sides is provided on the front mounting frame provided at the front of the upper swing body.
The left and right work fronts are attached to the left and right of the upper part of the bracket so as to be swingable in the left and right directions,
A front mounting structure for a small dual-arm working machine, wherein hydraulic cylinders for swinging left and right working fronts are mounted on the upper part of the bracket in a lateral direction and adjacent to each other in the front-rear direction. 請求項１に記載の小型双腕作業機のフロント取付け構造において、
前記フロント取付けフレームに前記ブラケットをピンより取付ける構造とし、
前記ピンより、前記作業用フロントを前記ブラケットに起伏可能に取付けるピンの位置を高くしたことを特徴とする小型双腕作業機のフロント取付け構造。 In the front mounting structure of the small double arm working machine according to claim 1,
The bracket is attached to the front mounting frame from a pin,
A front mounting structure for a small double-arm working machine, wherein the position of the pin for mounting the working front to the bracket so as to be raised and lowered is made higher than the pin. 請求項２に記載の小型双腕作業機のフロント取付け構造において、
前記フロント取付けフレームに前記ブラケットを取付けるピンを縦並びに配置する２本のピンにより構成したことを特徴とする小型双腕作業機のフロント取付け構造。 In the front mounting structure of the small double-arm working machine according to claim 2,
2. A front mounting structure for a small dual-arm working machine, wherein the front mounting frame is composed of two pins that vertically arrange pins for attaching the bracket.
JP2013094178A 2013-04-26 2013-04-26 Front mounting structure of small double-arm work machine Active JP5847756B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013094178A JP5847756B2 (en) 2013-04-26 2013-04-26 Front mounting structure of small double-arm work machine
CN201410164410.XA CN104120744A (en) 2013-04-26 2014-04-23 Forepiece installation structure for miniature two-arm operation machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013094178A JP5847756B2 (en) 2013-04-26 2013-04-26 Front mounting structure of small double-arm work machine

Publications (2)

Publication Number Publication Date
JP2014214537A true JP2014214537A (en) 2014-11-17
JP5847756B2 JP5847756B2 (en) 2016-01-27

Family

ID=51766361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013094178A Active JP5847756B2 (en) 2013-04-26 2013-04-26 Front mounting structure of small double-arm work machine

Country Status (2)

Country Link
JP (1) JP5847756B2 (en)
CN (1) CN104120744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023276345A1 (en) * 2021-06-29 2023-01-05 株式会社クボタ Work machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443687B1 (en) * 1997-05-23 2002-09-03 Kaiser Aktiengesellschaft Excavator-hoist
JP2005307598A (en) * 2004-04-22 2005-11-04 Hitachi Constr Mach Co Ltd Construction machine
JP2011196148A (en) * 2010-03-23 2011-10-06 Hitachi Constr Mach Co Ltd Working machine, front device of the working machine, and mounting method of the front device of the working machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443687B1 (en) * 1997-05-23 2002-09-03 Kaiser Aktiengesellschaft Excavator-hoist
JP2005307598A (en) * 2004-04-22 2005-11-04 Hitachi Constr Mach Co Ltd Construction machine
JP2011196148A (en) * 2010-03-23 2011-10-06 Hitachi Constr Mach Co Ltd Working machine, front device of the working machine, and mounting method of the front device of the working machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023276345A1 (en) * 2021-06-29 2023-01-05 株式会社クボタ Work machine

Also Published As

Publication number Publication date
JP5847756B2 (en) 2016-01-27
CN104120744A (en) 2014-10-29

Similar Documents

Publication Publication Date Title
WO2012153638A1 (en) Construction machine
JP5941014B2 (en) Double arm working machine
JP5688934B2 (en) hydraulic unit
JP5847756B2 (en) Front mounting structure of small double-arm work machine
US20130187354A1 (en) Stairway assembly for a machine
KR20140139256A (en) pipe layer adjustable boom length
KR101678652B1 (en) Device for fixing warning lamp of a construction machine
JP2009263996A (en) Working machine
JP2018184783A (en) Cable bracket for electrically driven work machine
JP2014214540A (en) Hydraulic equipment arrangement configuration of compact double arm work machine
JP2020001440A (en) Maintenance vehicle
JP2017214033A (en) Working machine
JP6163458B2 (en) Electric work machine
JP6581066B2 (en) Demolition machine
JP4408428B2 (en) Work tool angle detection device for work machines
JP2008202325A (en) Boom cylinder support structure of drilling machine and operation method
JP2003146600A (en) Vehicle for high lift work
KR101489946B1 (en) the safety work table for excavator
JP2018167767A (en) Double-arm work machine
WO2021246108A1 (en) Construction machine
JP5615598B2 (en) Pile driver
JP3950465B2 (en) Ultra-small turning machine
KR20120024353A (en) Apparatus for cutting
JP6384680B2 (en) Hose holder and construction machinery
JP6899800B2 (en) Work platform

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150127

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150303

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150619

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150630

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150820

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151117

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151125

R150 Certificate of patent or registration of utility model

Ref document number: 5847756

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150